The Issue The issue is whether Respondent Department of Environmental Protection (DEP) may issue to Respondent Republic Services of Florida, L.P. (Republic), permits to construct and operate a Class III landfill, pursuant to Permit Numbers 266830-003-SC/01 and 266830-004-SO/01, as modified as set forth below.
Findings Of Fact Background On June 30, 2009, Republic filed with DEP an application for a permit to construct and operate a Class I landfill (Application). In response to DEP's request for additional information dated July 30, 2009 (RAI), Republic filed a response dated September 14, 2009 (RRAI), upon receipt of which, DEP deemed the Application to be complete. References to the Application typically include the Application, RRAI, and other materials, such as reports, plans, and drawings, that are part of the Application, as well as three subsequent modifications, which are detailed below. Republic revised several reports, plans, and drawings in the RRAI; references to these items, such as the Engineering Report and Operation Plan, are to the versions contained in the RRAI. On November 13, 2009, DEP filed its intent to issue construction permit #266830- 003-SC/01 (Construction Permit) and intent to issue operation permit #266830-004-SO/01 (Operation Permit; collectively, the Permit). Republic Services, Inc. and its affiliates constitute the second largest waste-management operator group in the United States. Their market capitalization is just over $11 billion. The capitalization of the affiliate formed to operate the subject landfill is doubtlessly less than $11 billion, as the record does not suggest that any significant part of the overall capitalization of Republic Services, Inc., and its affiliates would be at risk in the operation of the proposed landfill. Republic presently owns and operates a Class III landfill in the City of Bartow, Polk County, known as the Cedar Trail Landfill. The oldest part of this landfill is an unlined Class III landfill of 52.5 acres in the center of the property owned by Republic. Immediately west of this unlined landfill is a 30.7-acre lined Class III landfill, which comprises cells 1-4. The Cedar Trail Landfill is located at 2500 West State Road 60, about three miles west northwest of the intersection of State Road 60 and State Road 98, which marks the center of Bartow. The landfill is immediately west of E.F. Griffin Road. Petitioners Frost live on E.F. Griffin Road, about one mile north of the Cedar Trail Landfill. Petitioner Highland Lakes Estates Homeowner's Association serves a residential subdivision known as Highland Lakes Estates. Highland Lakes Estates occupies a notch at the southeast corner of Republic's property. Aerial photographs reveal the changing land use of the land on which Cedar Trail Landfill is situated. Fifty years ago, the land was vacant with indications of agricultural uses. At the site of the proposed landfill were mostly citrus groves on the west side and some rangeland or vacant land on the east side. Ten years later, a large area immediately northeast of the subject land reveals the effects of strip mining for phosphate. Three years later, in 1971, the mined area had greatly expanded to encompass all or nearly all of the subject site and much of the surrounding area, including the western half of what would become Highland Lakes Estates. By 1980, the pits had been refilled and active mining had ceased, and the streets had been constructed for what is now known as Highland Lakes Estates. By 1993, about three dozen homes had been built in this residential, large-lot subdivision. 9. The Cedar Trail Landfill was constructed in the early 1990s as an unlined construction and demolition debris landfill. Now designated an approved landfill for Class III waste, this facility accepts such waste as is defined by Florida Administrative Code Rule 62-701.200(14) (2010), which includes construction and demolition debris, yard trash, processed tires, asbestos, carpet, paper, glass, furniture (but not white goods), plastic, and other materials not expected to produce leachate that presents a risk to the public health or environment. A zoning/land use map reveals that the land for which the proposed landfill is proposed is designated "sewage/borrow pits/spray fields." Highland Lakes Estates occupies land that is designated single-family residential with a density of one dwelling unit on up to 2.49 acres. The Cedar Trail Landfill has been the subject of three recent environmental resource permits (ERPs). Appendix R to the Application is an individual ERP issued in April 2009, and Appendix R to the RRAI is a conceptual ERP issued in March 2005. The April 2009 ERP mentions that the entire stormwater project was conceptually approved by an ERP issued on September 10, 2008, but this ERP is not part of the record. In any event, these ERPs approve the construction of a comprehensive stormwater or surface water management system for the entire Republic property. In particular, the April 2009 ERP permits the construction of a borrow pit at the southeast corner of the Republic property and a modification of the perimeter ditch/wet retention system. The April 2009 ERP states that the permitted stormwater management system will provide total onsite retention for runoff from the 100-year, 24-hour storm. The April 2009 ERP requires 2.8 acres of compensation for 2.8 acres of encroachment in the 100-year floodplain. Specific Condition 14 prohibits excavation of the borrow pits to a clay confining layer or limestone bedrock layer. Specific Condition 20 prohibits the mixing of leachate with stormwater and provides that, if leachate enters stormwater, the stormwater becomes leachate. Presumably reflecting this permitting activity, Application Drawing 4, as revised in the RRAI, is the site plan, including the unlined Class III landfill, the four-cell lined Class III landfill immediately to the west of the unlined landfill, and the eight cells proposed to accept Class I waste. These eight cells are immediately south of the four cells of the lined Class III landfill. The two northernmost of these eight cells abut, on their east boundary, the unlined Class III landfill. The remaining six cells abut, on their east boundary, an 800-foot wide borrow pit, which lies between these cells and Highland Lakes Estates. Immediately north of Highland Lake Estates is a second borrow pit, and west of this borrow pit is the unlined Class III landfill. The other major feature on the site plan is a third borrow pit running, from west to east, along the north border of the lined Class III cells, the unlined Class III landfill, and the second borrow pit. Bearing no signs of ambitious reclamation activity, the backfilled mining cuts host large water storage areas and, as described in the application for the March 2005 ERP, wetlands of "very poor quality." The backfilled soils are best described as complex surficial soils, consisting mostly of fine sands with varying amounts of organics, silts, and clays. Geotechnical investigations of the Cedar Trail Landfill suggest that mining depths, although variable, probably averaged 40 feet. Petitioners and Intervenor are substantially affected by the Permit and the construction and operation of the proposed landfill, which will stand nearly 200 feet above grade and will be the focus of substantial activity six days per week during its years of operation. Like Petitioners, Intervenor owns land in the immediate vicinity of the Cedar Trail Landfill, which is in the jurisdiction of Intervenor, and Intervenor's various municipal operations are much affected by whether the proposed Class I landfill is permitted. Among other things, Intervenor has agreed to accept untreated leachate from the proposed landfill. Petitioners Frost built their home in 1980 or 1981. During the hours of operation of the existing landfill, Petitioners Frost constantly hear the beeping noise of heavy- duty equipment, presumably a safety device when the equipment is moved. Over a dozen lots in Highland Lakes Estates abut the property line of the Cedar Trail Landfill, and the closest residence is about 1000 feet from the nearest proposed Class I cell. At present, the existing landfill subjects the Highland Lakes Estates to constant noise during operating hours and a coating of dust inside their homes. Several residents of Highland Lakes Estates testified. Hard-working people, some of whom are now retired, these residents decided to purchase homes in Highland Lakes Estates because it was a sunny, healthy place to live. Over time, most of these residents, by varying degrees, have come to accept the fact of the Class III operations at Cedar Trail Landfill, but they object to the substantial intensification of land use that will result from a regional Class I landfill. One resident testified that she finds in her pool dirt that has escaped from the existing landfill, and she has become concerned about her grandchildren coming over to swim. Another resident testified that he only began closing his windows five or six years ago when the noise levels at the existing landfill increased; he eventually had to install a window air- conditioner. The same resident testified that the green herons and snowy egrets that he used to see around his house have not returned for five years, and his wife, who has health problems, including respiratory distress, would suffer from the expanded landfill operations. Application, RRAI, and Permit, Including Modifications The Permit incorporates the Application, including the RRAI, Engineering Report, Operation Plan, and drawings. Thus, all of the documents are part of the Permit. In the Application, Republic proposes to convert cells 5-8, which are not yet constructed, from a Class III to a Class I landfill and add four new cells adjacent to the unused cells. The unfilled portion of Cells 1-4 would continue to receive only Class III waste. Pursuant to Florida Administrative Code Rule 62-701.200(13) (2010), Class I waste is all solid waste, other than hazardous waste, that is not otherwise prohibited by rule. The Application states that the proposed landfill will serve communities within 100 miles. The service area of this regional landfill will thus extend in central Florida from Marion to Osceola counties, along the Gulf Coast from Pasco to Lee counties, and along the Atlantic Coast from Volusia to Martin counties. As stated in the Application, this service area is populated by 9.7 million persons, who would daily account for 3000 tons of waste at the Cedar Trail Landfill. Initially, according to the Engineering Report, the proposed landfill will receive 1600 tons per day of Class I waste, but, once the existing Class III cells are filled, the proposed landfill will receive 1600 tons per day of Class I waste plus the 1400 tons per day of the Class III waste that is currently going into the existing landfill. As revised by the RRAI, the life expectancy of the proposed landfill is seven years. The Application states that Republic will employ an attendant, a trained operator, and 3-5 spotters at the landfill. The Application reports that the landfill would operate Monday through Saturday from 7:00 a.m. to 6:00 p.m. and that the working face would be covered daily. The Application reports that Republic would install seven new detection wells and use 17 existing wells for monitoring groundwater and would use two existing staff gauges for monitoring surface water, evidently at a single location, as discussed in the next paragraph. 23. Application Appendix V is the Water Monitoring Plan. Appendix V states that surface water will be monitored every time that the stormwater pond for the leachate storage area discharges offsite, but not more frequently than weekly. Application Drawing 4, as revised in the RRAI, shows that the sole surface water monitoring location is close to the leachate storage tanks, which are described below. 23. Appendix V also requires leachate monitoring, "at least annually," for five field parameters--specific conductivity, pH, dissolved oxygen, colors, and sheens; eight laboratory parameters--including chloride, mercury, and total dissolved solids; and the parameters listed in 40 CFS Part 258, Appendix II, which includes a comprehensive list of volatile organic compounds; persistent organic pollutants, including 2,3,7,8-TCDD (a major dioxin) and Dibenzofuran; and metals, including lead and chromium. Fourteen days prior to all sampling events, Republic is required to notify DEP, so that it may obtain split samples for its own analysis. Republic is required to report the results of the groundwater monitoring quarterly and to analyze the groundwater data in a technical report filed with DEP every two years. Appendix V also requires monitoring for odors and combustible gases, mostly methane. Republic will monitor combustible gas quarterly at various ambient locations, such as the office buildings and to monitor combustible gas quarterly in the soil down to the seasonal high water table. The purpose of this monitoring is to determine combustible gas concentrations and, if they exceed 25%, take "all necessary steps to ensure protection of human health." Some confusion in the Application arises as to the issue of whether the Cedar Trails Landfill will be subject to, or voluntarily implement, the more elaborate provisions applicable to a landfill covered under Title V of the federal Clean Air Act, as amended in 1990. Regulated emissions for a new source might include particulate matter, sulphur dioxide, nitrogen oxides, volatile organic compounds (VOCs), and specified hazardous air pollutants. Appendix V states that the landfill will become a Title V landfill once permitted to receive Class I waste, and, at that time, it will be subject to a "more comprehensive system of landfill gas collection and monitoring." Appendix V assures that these items "will be addressed in separate documentation from this monitoring plan"--and, apparently, separate from the present record. By contrast, the Operation Plan concedes only that, based on the nature of Class I waste and the design capacity of the proposed landfill, Cedar Trail Landfill "may" become a Title V facility. The Operation Plan states: "If the regulatory thresholds at [Cedar Trail Landfill] are met [under Title V] requiring an active gas collection and control system (GCCS), [Cedar Trail Landfill] will submit as required the GCCS design plans for approval and install an active gas extraction system within the regulatory timeframes specified by Title 40, Code of Federal Regulations, Part 60, Subpart WWW." More specific provisions in the Operation Plan identify best management practices to prevent objectionable odors. Four practices are identified, including an "active gas collection and extraction system." On the DEP form application, which is a cover sheet to the more elaborate application materials, Republic checked boxes indicating that the landfill would use active gas controls with gas flaring and gas recovery, which is probably what is meant by an "active gas collection and extraction system." The Application provides that the landfill liner would be double composite; the leachate collections system would consist of collection pipes, geonets, and a sand layer; the leachate would be stored in tanks; some of the leachate would be recirculated as spray on the working face; and the remainder of the leachate would be stored onsite and periodically transferred to a wastewater treatment center for treatment. The Engineering Report states that the waste disposal footprint will not be located where geological formations or other subsurface features will not provide support for the waste. The Engineering Report identifies appendices addressing the slope-stability analysis and foundation analysis and relies on a March 12, 1997, report by Ardaman & Associates, Inc. (Ardaman Report), January 23, 2004, report by Golder Associates, Inc. (Golder Report), and June 26, 2009, report by Hanecki Consulting Engineers, Inc. (Hanecki Report). These items are discussed in greater detail below in connection with the sinkhole issue. The Engineering Report assures that the waste disposal footprint will not be within 500 feet of an existing or approved potable water well, nor will it be within 1000 feet of an existing or approved potable water well serving a community water supply. The Engineering Report adds that the minimum horizontal distance between waste deposits and the property line is 100 feet. The Engineering Report assures that the landfill footprint will not be in a dewatered pit, as the installation elevations are at least 2-3 feet higher than the seasonal high water table. The Engineering Report acknowledges that a small part of the eastern end of the four southernmost cells lies within the 100-year floodplain, as depicted by the Flood Insurance Rate Map effective December 29, 2000, and as shown in Application Appendix A, Drawing 1. Claiming that the relevant map was not revised in 2000, the Engineering Report asserts that the last update to the FIRM map was in 1975, and the depicted floodplain was filled during the mine reclamation process. The Engineering Report notes that the floodplain concerns were addressed in the April 2009 ERP. 34. The Engineering Report discloses two enforcement actions against Republic at the Cedar Trail Landfill. In a letter dated October 19, 2001, DEP warned Republic about noncompliant items at the site, and, in a notice of noncompliance dated January 30, 2006, DEP warned Republic not to use a new cell prior to construction certification of the cell's stormwater system. Both matters were reportedly resolved, and Republic has not been the subject of other enforcement actions for the Cedar Trails Landfill. At DEP's urging, the RRAI elaborates on enforcement actions against Republic or, evidently, Republic affiliates at a variety of Florida facilities, not just landfills. The additional information reveals that DEP imposed a fine of $61,300 for the October 2001 violations, which included disposing of unacceptable waste, storing an excessive number of tires and exceeding groundwater standards without notifying DEP, and a fine of $1000 for the January 2006 notice of noncompliance. The other enforcement actions against Republic or affiliates concerning landfills involved consent orders about the Nine Mile Road Landfill (Seaboard Waste): in February 2003, DEP imposed a fine of $13,000 in settlement of charges that employees were not removing all unacceptable waste from the site and, in November 2005, DEP imposed a $285 fine for a failure to submit required stormwater monitoring reports. There were many other enforcement actions, generally resulting in modest fines, but they involved hauling facilities, transfer stations, and materials recovery facilities, not landfills. The Engineering Report states that the proposed landfill is within six miles of, but greater than 10,000 feet from, the Bartow Municipal Airport. Airport safety is addressed in more detail below. The Engineering Report describes in detail the double composite liner system, which uses materials whose physical, chemical, and mechanical properties prevent failure due to contact with Class I waste and leachate, climactic conditions, installation stress, and other applied stresses and hydraulic pressures. The Engineering Report performs no contingency sinkhole analysis. The report does not suggest that the liner system could withstand the stresses and pressures resulting from any size sinkhole, so the necessary inference is that the liner will fail if any sinkhole forms directly beneath it. The Engineering Report states that waste placement will remain within the lined containment berm. The Engineering Report describes in detail the double composite liner system for use at the proposed landfill. The primary liner system and secondary liner system each comprises three layers with the top layer consisting of a composite drainage net, the middle layer consisting of a high-density polyethylene geomembrane with a minimum average thickness of 60 ml, and the bottom layer consisting of a geosynthetic clay liner with a maximum hydraulic conductivity of 5 x 10-9 cm/second. The Engineering Report describes in detail the leachate collection and removal system, which, sitting atop the primary liner, includes a 24-inch thick sand drainage layer with a minimum hydraulic conductivity of 1 x 10-3 cm/second, a composite drainage net, and a single perforated 8-inch diameter lateral pipe in each cell. The collection lateral pipes will gravity drain to the east to a header pipe that gravity drains to the primary leachate collection pump stations--one station for the four converted cells and one station for the four new cells. A smaller leachate collection and removal system will handle the leachate that penetrates to the leak detection layer by routing it to a secondary leachate collection pump station. Based on calculations derived from the HELP groundwater model, the leachate collection and removal system is designed to prevent leachate head from exceeding the thickness of the composite drainage net (about 1 cm) over the secondary geomembrane and from exceeding one foot over the primary geomembrane. According to the Engineering Report, flow meters will be installed at each of the pump stations to allow daily readings of the amount of leachate being pumped. At one foot of head over the primary liner, the Engineering Report expects just over three gallons per day collected at each secondary leachate collection pump station--significantly less than the leakage rate typical of a double liner system without a geosynthetic clay liner beneath the primary liner. However, the Engineering Report provides a standard action leakage rate of 100 gallons/acre/day, meaning that Republic is required to report to DEP liner leakage only when this leakage rate is attained. The pump stations will transmit the leachate to one of two above-ground, 150,000-gallon storage tanks. From these tanks, most of the leachate will be transported to an offsite location for treatment. However, up to 12,000 gallons per day of the untreated leachate will be recirculated to be sprayed on the working faces of the landfill. This is to control dust and possibly to assist with the degradation of the waste. The Engineering Report states that the Cedar Trail Landfill implements a facility-wide water quality monitoring plan. Upon completion of the pump stations for the eight cells that are the subject of the Application, Republic will expand its leachate sampling program to include annual sampling of the leachate collected in the primary and secondary leachate collection pump stations. The groundwater monitoring wells would be installed as closely as possible to the outer edge of the roadway that, with a stormwater ditch, will run the perimeter of the proposed Class I landfill. In the revised Engineering Report contained in the RRAI, Republic proposes a surface water discharge point in the stormwater pond located near the leachate storage tanks. The Engineering Report adds that Republic will continue to comply with the following prohibitions: No waste will be knowingly burned on site; Hazardous waste will not knowingly be accepted; PCB contaminated waste will not knowingly be accepted; Untreated biomedical waste will not knowingly be accepted. Please note that treated biomedical waste may be accepted at [Cedar Trail Landfill]'s Class I Landfill provided that the waste containers are marked "Treated Biomedical Waste.;" No waste disposal at the proposed Class I Landfill will occur within 3,000 feet of a Class I surface water body; [Cedar Trails Landfill] will not knowingly accept liquid waste within containers, excluding leachate and gas condensate derived from solid waste disposal operations. [Cedar Trails Landfill] will comply with the requirements of Rule 62- 701.300(10), FAC regarding the handling of liquid wastes; Neither oily waste nor commingled oily waste will knowingly be accepted; and Lead-acid batteries, used oil, white goods, and whole-waste tires will not knowingly be disposed of in the Class I waste disposal system. The Joint Stipulation to Permit Modification, identified above, adds four items to this list of operational prohibitions: i. Garbage will not be knowingly accepted; Household Waste, except waste from residential sources generated as Class III waste, will not be knowingly accepted; Animal carcasses will not be knowingly accepted; and Aluminum dross will not be knowingly accepted. Capitalized terms are generally defined in the Florida Administrative Code. Florida Administrative Code Rule 62-701.200(39) defines "Garbage" as " all kitchen and table food waste, and animal or vegetative waste that is attendant with or results from the storage, preparation, cooking, or handling of food materials." Application Appendix H is the Operation Plan, which also identifies the types of wastes to be permitted at the proposed landfill. Section 3(b) of the Operation Plan authorizes the proposed landfill to accept: Commercial waste Ash residue Incinerator by-pass waste Construction and demolition debris, including from a residence Treated biomedical waste Agricultural waste Industrial waste Yard trash, including from a residence Sewage sludge Industrial sludge Water/air treatment sludges Waste tires De minimis amounts of non-hazardous waste from incidental residential sources Section 5 of the Operation Plan provides, in relevant part: [Cedar Trail Landfill] will accept waste included in any of the waste categories identified under Section 3(b) of this Operation Plan[, but] will . . . NOT knowingly accept any hazardous waste, untreated biomedical waste, liquid waste (including paint), explosive waste, toxic waste, or radioactive waste for disposal at the [Cedar Trail Landfill.] Unacceptable types of refuse are listed below and will not be knowingly accepted for disposal. --Hazardous waste --Explosive waste --Radioactive waste --Drums that have not been opened and Emptied --Refrigerators, freezers, air Conditioners (white goods) --Any toxic or hazardous materials, i.e. batteries, solvents, oil, etc. --Automobiles or parts that contain fuel, lubricants, or coolants --Untreated Biomedical waste The original Application prohibited the acceptance of septic tank pumpage, but the application form accompanying the original Application indicated that the proposed landfill would accept industrial sludge and domestic sludge. After modification by the RRAI, the prohibition against accepting septic tank pumpage was deleted, and the Operating Plan added, among acceptable wastes, sewage sludge, industrial sludge, and water- and air-treatment sludge. Florida Administrative Code Rule 62-701.200(101) (2001) defines "sludge" to include solid waste pollution control residual from an industrial or domestic wastewater treatment plant, water supply treatment plant, air pollution control facility, septic tank, grease trap, portable toilet, or other source generating a waste with similar characteristics. Florida Administrative Code 62-701.200(64) (2001) defines "liquid waste" as any waste with free liquids, according to the "Paint Filler Liquids Test." As modified by the Joint Stipulation to Permit Modification, Section 5 of the Operation Plan was amended to add the following items to unacceptable types of refuse that will not be knowingly accepted for disposal: --Garbage --Household Waste, except waste from residential sources generated as Class III waste --Animal carcasses --Aluminum dross At the hearing, Republic and DEP agreed to an additional condition to the Operation Plan that unacceptable waste would include Garbage contained in commercial, industrial or agricultural waste. According to the Operation Plan, the initial waste screening occurs at the gate house where the attendant interviews the driver and inspects the incoming waste load. If the attendant sees more than a negligible amount of unauthorized wastes, he will reject the load and will contact the hauler to identify the source of the waste. Additionally, Republic will notify DEP if anyone tries to dispose of hazardous waste at the proposed landfill. As modified by the Joint Stipulation to Permit Modification, the Operation Plan was amended to provide a new paragraph between the paragraph addressing the initial waste screening at the gate house and, as discussed below, the second screening at the working face. The new paragraph provides: Any malodorous waste will be covered with mulch and/or additional soil or other approved cover materials to control odors promptly, within one (1) hour from the time of unloading, except in the event of exigent circumstances, such as extreme weather. Cedar Trail Landfill will promptly cover any sludge deposited on the landfill working face within one (1) hour from the time of the unloading, except in the event of exigent circumstances, such as extreme weather. At the hearing, Republic and DEP agreed to an additional condition to the Operation Plan, which would prohibit Republic from accepting malodorous waste or sludge that, due to exigent circumstances, it would not be able to cover within one hour from the time of unloading. If the load passes the initial waste screening, it will proceed to the working face of the landfill, according to the Operation Plan. At least one spotter will be stationed at the working face at all times that the landfill receives waste. Her job will be to detect unauthorized wastes. Republic is to assure that it has a sufficient number of spotters to find and remove unauthorized waste prior to compaction. The Operation Plan allows the spotter to work from ground level or the cab of a compactor. If the operator of a piece of heavy equipment is trained as a spotter, she may also serve as a spotter. During periods of higher waste traffic, the equipment operator will, according to the Operation Plan, "likely" need the assistance of another operator or spotter to screen the higher waste volumes. When finding unauthorized wastes in manageable volumes, the spotter or operator will remove these wastes by hand and place them into nearby containers for removal to an appropriate facility. The third waste screen occurs as the equipment operator spreads the waste, pursuant to the Operation Plan. The equipment operator is required to place any unacceptable observed wastes into containers, which will be located "within the lined area." These wastes will also be removed to an appropriate facility. In the RAI, DEP questioned the proximity of the containers to the working face, as the lined area consists of 72 acres, but, in the RRAI, Republic ignored the comment, restating only that the containers would not be located outside the lined area. The Operation Plan specifies a filling sequence. Republic will assure that the first layer of waste placed above the liner in each cell will be a minimum of four feet in compacted thickness and will be free of rigid objects that could damage the liner or leachate collection and removal system. Republic will maintain the working face to minimize the amount of exposed waste and initial cover necessary at the end of each day. The filling sequence will proceed until the permitted final grade elevations have been reached, less three feet for the final cover. The Operation Plan states that the initial cover at the Class I landfill will consist of a six-inch layer of soil that is transferred from onsite borrow pits or offsite sources. This soil will be compacted and placed on top of the waste by the end of each work day. At Republic's option, subject to DEP's approval, it may use a spray-on or tarpaulin cover, instead of a soil cover. The Operation Plan requires Republic to apply at least one foot of intermediate cover within seven days of cell completion, if additional waste will not be deposited within 180 days of cell completion. Republic may remove all or part of this intermediate cover before placing additional waste or the final cover. Through the placement of initial, daily, and intermediate cover, Republic will minimize the occurrence of moisture infiltration, fires, odors, blowing litter, and animals and other disease vectors. 59. The Operation Plan requires Republic to control litter primarily by daily waste compaction and cover. However, at least daily, if needed, employees will collect litter along the entrance and access roads and around the working face. Complaints about litter must be logged. In addition to the inspections detailed above, the Operation Plan establishes a random load-checking program to detect unauthorized wastes. Each week, Republic employees will examine at least three random loads of solid waste by requiring drivers to discharge their loads at a designated location within the landfill where the employees may undertake a detailed inspection. All random inspections will be logged. Notwithstanding the daily limit of 12,000 gallons per day, the Operation Plan prohibits Republic from spraying leachate during rain events. To apply the recirculated leachate, the lead operator will drive the leachate tanker truck on the working face, so that it can spray leachate over waste as it is being compacted, but after it has been screened by spotters. The spraying will be done to avoid causing leachate to pond atop the waste and will not be done within 50 feet of an outside slope. No restrictions apply to wind conditions. The Operation Plan states that, if the annual sampling of leachate water quality at the two pump stations reveals a contaminant in excess of the permissible limits listed in 40 CFR Part 261.24, Republic will start monthly sampling and notify DEP in writing. Also, the Cedar Trail Landfill will maintain a recording rain gauge. The Operation Plan requires Republic employees to conduct daily surveys for objectionable odors and take immediate corrective action, if odors are found at the property line. As modified by the Joint Stipulation to Permit Modification, this portion of the Operation Plan was amended to add two odor- remediation actions and another form of odor inspection. The two additional actions to prevent odors are to 1) provide additional cover using mulch, additional soil, or other approved cover material and 2) use odor masking or neutralizing agents. The new inspection provision states: Internal inspection will be performed on a weekly basis by a properly trained odor ranger or equivalently trained person. Such individual will tour the facility, property boundary, and the subdivision of Highland Lakes Estates . . . to identify any odors leaving the Landfill's property boundaries. The results of each weekly inspection will be document, and any odors identified will be mitigated. Another new provision from the Joint Stipulation for Permit Modification applies to the handling of sludge. As amended, the Operation Plan states: When accepting sludge from a new source or distributor, [Republic] will obtain information regarding the characteristics and constituents of the sludge, including a description of the industrial process or circumstances that resulted in the generation of the sludge. Upon delivery of the sludge, [Republic] will mix lime, sodium hydroxide, or any other suitable agents to eliminate objectionable odors as required during disposal of the sludge before the material is covered. Furthermore, [Republic] will obtain advance notice from contributors prior to delivery of any sludge and shall promptly cover any sludge unloaded on the landfill working face within one (1) hour from the time of unloading, except in the event of exigent circumstances, such as severe weather. [Republic] shall use its best efforts to avoid accepting or disposing of sludge on Saturdays, Sundays, or public holidays. Additionally, with respect to sludge received from wastewater treatment facilities only, such sludge shall not exceed the lesser of (1) twenty percent (20%) of the total volume of waste disposed in the landfill on an average monthly basis, determined annually on the prior calendar year, or (2) two-hundred (200) tons per day, averaged over the prior 12-month calendar year. Republic is required to monitor combustible gases quarterly and transmit the results to DEP, according to the Operation Plan. If Republic detects methane above the limits specified in Florida Administrative Code Rule 62-701.530 (2010), Republic must submit a gas remediation plan to DEP within seven days. The Operating Plan indicates that the separation of the waste from the groundwater prevents the saturation of the waste and, thus, the generation of odor. Sloping and compacting will promote stormwater runoff, again to discourage the generation of odor. The Construction Permit authorizes construction of the proposed landfill in accordance with the "rules[,] . . . reports, plans and other information" submitted by Republic "(unless otherwise specified)." This parenthetical reference provides that the provisions of the Construction Permit control over any contrary provisions in the other documents that are part of the Permit due to incorporation by reference. In addition to the original Application, RRAI, and drawings, the Construction Permit also incorporates Florida Administrative Code Chapter 62-701 (2001). The Construction Permit states that Republic may not violate the prohibitions set forth in Florida Administrative Code Rule 62-701.300, which is discussed in the Conclusions of Law. Construction Permit Specific Condition A.9.a requires notification to DEP of the discovery of limestone during excavation or discovery. Specific Condition A.9.b requires notification to DEP of any surface depressions or other indications of sinkhole activity onsite or within 500 feet of the site. Specific Condition A.9.c prohibits open burning. Construction Permit Specific Condition C.1.b prohibits the discharge of leachate, during construction or operation, to soils, surface water, or groundwater outside the liner and leachate management system. Specific Condition C.4 prohibits the acceptance of hazardous waste and does not condition this prohibition on Republic's knowledge that the waste is a hazardous waste. Specific Condition C.5 requires Republic to "control . . . odors and fugitive particulates (dust)" and "minimize the creation of nuisance conditions on adjoining property." "Nuisance conditions" include "complaints confirmed by [DEP] personnel upon site inspection." Specific Condition C.5 orders Republic to "take immediate corrective action to abate the nuisance" and to "control disease vectors so as to protect the public health and welfare." Construction Permit Specific Condition C.6.b requires immediate notice to DEP of any sinkholes or other subsurface instability. Specific Condition C.8 requires Republic to manage leachate in accordance with the Operating Permit and Florida Administrative Code Rule 62-700.500(8). The Operating Permit incorporates the same materials that are incorporated into the Construction Permit, again "(unless otherwise specified)." Like the Construction Permit, the Operating Permit incorporates Florida Administrative Code Chapter 62-701 (2001) and requires immediate notice to DEP in the event of a sinkhole or subsurface instability. The Operating Permit specifies that the action leakage rate is 100 gallons per acre per day and the leachate recirculation rate is 12,000 gallons per day. As modified by the Joint Stipulation to Permit Modification, Operating Permit Specific Condition A.1.b states: This Facility is not authorized to accept Garbage; untreated Biomedical Waste; animal carcasses; liquids and non-liquid PCB containing materials or wastes with a PCB concentration greater than or equal to 50 parts per million; Liquid Waste; and aluminum dross. Additionally, this facility is not authorized to accept Household Waste, except waste from residential sources generated as Class III waste. Class III waste means yard trash, construction and demolition debris, processed tires, asbestos, carpet, cardboard, paper, glass, plastic, furniture other than appliances, or other materials approved by [DEP] that are not expected to produce leachate which are a threat to public health or the environment as defined in Rule 62-701.200(14), F.A.C. Based on this authorization to allow certain wastes as described above from residential sources, and since the landfill design, including liner and leachate collection systems, meets the requirements of Chapter 62-701, F.A.C., for Class I landfills, the facility will be entitled to [the] household hazardous waste exemption pursuant to 40 C.F.R. 261.4(b)(1). Specific Condition A.9.c prohibits open burning. Operating Permit Specific Condition C.1.b prohibits the discharge of leachate to soils, surface water, or groundwater outside the liner. Specific Condition C.1.c prohibits the discharge of "residual contaminants," such as gasoline, oil, paint, antifreeze, and polychlorinated biphenyls (PCBs), onto the ground or into surface water or groundwater. Operating Permit Specific Condition C.1.k(1) provides that authorized waste types are those listed in Section 3(b) of the Operations Plan, and unacceptable wastes shall be removed from the site as described in Sections 3(a) and 7. As modified by the Joint Stipulation to Permit Modification, Operating Permit Specific Condition C.1.k(1) provides: "Waste types authorized for management at this site are those listed in Section 3(b) of the Operations [sic] Plan. Unacceptable wastes are those listed in Section 5 [of the Operation Plan] " Operating Permit Specific Condition C.1.k(2) requires the use of a sufficient number of spotters to remove unacceptable wastes, but allows Republic to direct its equipment operators to serve as spotters from the equipment. This condition allows DEP to require that spotters work from the ground, if DEP determines that spotting from equipment is not effective. Specific Condition C.1.k(3) requires Republic to remove unacceptable wastes immediately and not to unload additional wastes in the immediate vicinity until placing unacceptable wastes in the designated waste containers" "near the working face" and within the lined landfill area. Operating Permit Specific Condition C.1.l(2) requires Republic to inspect on each operating day the property boundary for objectionable odors and, if any are detected, abate them in accordance with Specific Condition C.5. Specific Condition C.5.a requires Republic to control odors, disease vectors (insects and rodents), and fugitive particles (dust and smoke) to protect the public health and welfare. Control is defined as "minimiz[ing]" the creation of nuisance conditions on adjoining property. Odors confirmed by DEP personnel are a nuisance condition, and Republic must take immediate corrective action to "abate" the nuisance. Specific Condition C.5.b provides that, if odor control measures do not "sufficiently abate" objectionable odors within 30 days, Republic will submit an odor remediation plan to DEP for approval. Operating Permit Specific Condition C.8.e requires monthly reports to DEP of leachate quantities. Specific Condition C.8.h(1) prohibits recirculation of leachate at rates that result in seepage that may discharge outside the lined area. Leachate may not be sprayed when the application area is saturated or during a rainfall event. There is no prohibition against spraying during windy conditions. Operating Permit Specific Condition E details the extensive water quality monitoring requirements. However, Specific Condition E.9.b requires only annual testing of the five field parameters, eight laboratory parameters, and the comprehensive list of Appendix II parameters set forth in 40 CFR Part 258, all of which are identified below. Specific Condition E.9.c provides that, if a contaminant listed in 40 CFR 261.24 exceeds the level listed therein, Republic will notify DEP and take monthly leachate samples until no exceedances are detected for three consecutive months. Operating Permit Specific Condition F.1.a states: "This solid waste permit will meet the statutory requirement to obtain an air construction permit before . . . constructing a source of air pollution, except for those landfills that are subject to the prevention of significant deterioration (PSD) requirements of Chapter 62-212, F.A.C." Such facilities are required to obtain an air construction permit from the Bureau of Air Regulations prior to construction. Specific Condition F.1.b requires Republic to comply with Title V of 40 CFR 60, Subparts WWW and CC. This section notes that Title V permit applications must be submitted to the District Air Program Administrator or County Air Program Administrator responsible for the landfill. Aviation Safety Landfills attract birds in search of food. Flying birds may interfere with aviation safety. Thus, landfills are typically not located in close proximity to airfields to minimize the risk that flying birds will interfere with airborne aircraft approaching or departing from an airport. The nearest airport to the Cedar Trail Landfill is the Bartow Municipal Airport, which is operated by the Bartow Aviation Development Authority. This airport is over five miles from the footprint of the active landfill and 4.6 miles from the boundary of the proposed site. Republic provided notice of the Application to all airports within six miles of the proposed landfill, the Federal Aviation Administration, and the Florida Department of Transportation. None of these entities objected to the proposed landfill. When Republic gave the Bartow Aviation Development Authority notice of an earlier application, which sought a permit for a landfill that would accept garbage, the authority objected to the proposal due to concerns posed by birds to aviation safety. When asked about the Application, the authority's executive director testified that she still has concerns about the proposed landfill, but she did not specify the nature of her concerns or her analysis. As explained in the Conclusions of Law, these are the only facts required for a determination of whether Republic has provided reasonable assurance of aviation safety. The record provides no basis for finding that Republic has failed to provide reasonable assurance of aviation safety. Neither the FAA nor the Bartow Aviation Development Authority has objected to the proposed landfill. The executive director's unspecified concerns do not override the absence of a formal objection from these agencies. Petitioners assign too much weight to the earlier objection submitted by the authority. The composition of the authority may have changed or some authority members may have decided they were wrong in their earlier analysis. This earlier objection does not outweigh the absence of objection to the present proposal from any of the aviation agencies and the absence of any evidence of the expected nature or extent of bird usage of the proposed landfill and the extent to which these birds would interfere with existing and expected flight paths of aircraft using the Bartow Municipal Airport. Public Health Petitioners' expert witness on public-health issues, Dr. David Carpenter, is a medical doctor with a long, prestigious history of public service, including with the Department of Defense, the National Institutes of Mental Health, the United States Public Health Service, and the New York Department of Health, where he served as director from 1980-85. At that time, Dr. Carpenter started the School of Public Health at the University of Albany. Republic's expert witness on public-health issues, Dr. Christopher Teaf, is an expert in the evaluation of environmental contamination, waste management, and toxicology, but not a medical doctor. Dr. Teaf is a professor at Florida State University and owns a small consulting firm. The major part of Dr. Carpenter's career has been devoted to research. For the past ten years, he has focused more on human health, especially human disease from exposure to environmental contaminants. Dr. Carpenter has considerable experience with the adverse effects of landfills on human health, but his experience has been mostly with older landfills, where containment measures were few and offsite releases were many. Clearly, Dr. Carpenter's experience does not extend to the role of landfill design, construction, and operation in the transmission of human disease. Thus, Dr. Carpenter is qualified to opine on the effects of pollutants that may escape landfills, but not on the relationship of landfill design, construction, and operation on the probability that a landfill will transmit pollutants. For the most part, Dr. Carpenter did not attempt to address matters outside of his expertise. However, Dr. Carpenter testified that the risk of disease or injury increased in relationship to the proximity of the person to the landfill. This testimony can only be credited if one assumes that the landfills are identical in terms of design, construction, and operation and in terms of the environmental conditions of the landfill site. In other words, in real-world applications, it is impossible to credit this element of Dr. Carpenter's testimony, especially to the extent of his implicit suggestion that public health is unreasonably endangered by the construction of a landfill, in compliance with all rules, that satisfies all of the separation criteria and design criteria set forth in the rules, as discussed below. By contrast, Dr. Teaf focused on the details of the proposed landfill. Applying his knowledge of toxicology, Dr. Teaf determined that the proposed landfill adequately protects public health. In making this determination, Dr. Teaf analyzed the effects of various design and operational characteristics of the proposed landfill, including the double liner system, the leachate collection and management system, the selection of appropriate waste types, the procedures for the evaluation and covering of sludges, the prohibition against municipal garbage, the restrictions on household items, the monitoring of groundwater and surface water, the stormwater management system, and the plans to control dust and odors. Dr. Carpenter's testimony and the literature that he sponsored suggested important links between older landfills and a wide range of human disease. But the recurring problem with Dr. Carpenter's testimony and the research articles that he sponsored was the inability to link this information to the proposed landfill. All of the landfills studied in his research articles were older, and most of them appeared to have been designed, constructed, and operated under far more relaxed regulatory regimes than exist today. Nothing in Dr. Carpenter's testimony or sponsored literature attempted to delineate the design or operational characteristics of these landfills, such as whether they were double- or even single-lined, served by leachate circulation and recovery systems, limited as to materials that they could accept, or required to install stormwater management and water monitoring systems. 93. Analysis of the risk to public health posed by the proposed landfill requires consideration of the various means of transmission of the pollutants received by the landfill: water, land, and air. Of these, water requires little analysis, on this record. Even Dr. Carpenter conceded that the proposed landfill does not appear to pose a threat to groundwater. The double liner, leachate collection and recovery system, and groundwater monitoring plan support the finding that groundwater transmission of pollutants from the proposed landfill is unlikely. Transmission by surface water is also unlikely. Compared to groundwater monitoring, surface water monitoring is limited. For instance, there is only a single monitoring site. Also, as noted above, the stormwater pond for the leachate storage area is expected to discharge stormwater offsite during excessive storm events, at which time surface water samples will be taken. However, a comprehensive surface water management system is in place at the landfill and will prevent offsite discharges in all but a few excessive rain events. Transmission by land is also unlikely. The Application contains engineering analysis of the proposed stability of the side slopes and a determination that they will be stable. The discussion of sinkholes, below, does not affect this finding. Treating dust as transmission by air, the only other means by which pollutants may transmit by land is by animals, such as insects, rodents, and birds. An important factor limiting the activity of animals in spreading pollutants offsite is the fact that the proposed landfill will not receive garbage. Although putrescible waste may be received within other categories of waste, the prohibition against receiving garbage will greatly reduce the amount of potential food sources for animals and thus the utilization rate of the proposed landfill by these animals. A further reduction in animal utilization will be achieved through the daily and intermediate cover requirements. Thus, transmission of pollutants by animals is also unlikely. Transmission by air takes several forms. Pollutants may be transmitted as or on dust, with water in the form of aerosol, or as gas. In terms of how transmission by air is addressed by the Permit, this means of transmission potentially represents a greater threat than transmission by water or land for four reasons. First, the explicit focus of the Permit, as to gas, is to avoid explosive concentrations of methane and objectionable odors, but not the transmission of other pollutants by air. Second, the effect of the Permit is to prohibit the release of pollutants into the groundwater or offsite surface water and to prohibit the release of pollutant-bearing land offsite, but no such flat prohibition applies to the offsite release of pollutants by air. Third, the leachate recirculation system provides a good opportunity for the release of certain pollutants into the air by aerosol or evaporation, but similar releases to offsite land, surface water, or groundwater are prohibited. Fourth, scientific understanding of the effects of exposure, especially by inhalation, to pollutants, especially in the form of organic compounds, is continuing to develop: with the use of chemicals increasing three fold in the 50 years preceding 1995 and approximately 80,000 chemicals in use in 2002, only a few hundreds of these chemicals have been subjected to long- or short-term study, resulting in the discovery that about 10% of the chemicals in use in 2002 were carcinogens. Transmission by dust appears to be limited by the frequent covering and spraying of the working faces. Although nearby residents complain of dust in their homes, the practices of the less-regulated Class III landfill cannot be extrapolated to the proposed Class I landfill. Thus, the prospect of dust transmission of chemicals contained in the fill received by the proposed landfill appears also to be slight. The use of untreated leachate as the spray medium to control the dust itself raises two risks, however. First, spraying leachate will release chemicals in aerosol. The potential range of aerosol is great, especially as the landfill ascends toward its design height of 190 feet. However, the risk of transmission by aerosol is reduced to insubstantial levels by adding a Permit condition that prohibits spraying during windy conditions. Second, depositing leachate on the landfill face will release chemicals through evaporation. The point of spraying the landfill face is to control dust between the addition of the waste materials to the pile and the application of the cover. Between these two events, dry conditions will sometimes intervene and may cause the evaporation of certain, but not all, pollutants. The leachate acquires pollutants as it percolates down the waste column and into the leachate collection system. As Dr. Teaf noted, the leachate becomes more concentrated as it recirculates, but, otherwise, this record is largely silent as to the likely composition of the recirculated leachate. However, for landfills accepting sludge, higher levels of mercury may be present in the leachate. As reported by the Florida Center for Solid and Hazardous Waste Management at the University of Florida, in a report issued March 2007, and titled, "Design and Operational Issues Related to Co-Disposal of Sludges and Biosolids and Class I Landfills--Phase III," one study found that the concentration of mercury in the leachate of landfills that receive sludge is almost three times greater than the concentration of mercury in the leachate of landfills that do not accept sludge. The same study reported that total dissolved solids and chlorides were present at greater concentrations at the landfills that did not accept sludge and that other parameters--unidentified in the cited article--were not significantly different between the two types of landfills. Republic proposes to recirculate substantial volumes of leachate--sufficient, for instance, to raise the moisture content of the fill from 25 percent to 28.9 percent. The Permit allows the proposed landfill to operate six days per week, for a total of 312 days annually. The Operation Plan prohibits the application of leachate during rain, but the number of days annually during which rain extends for the entire day is few, probably no more than a dozen. These numbers suggest that Republic may apply as much as 3.6 million gallons annually of untreated leachate to the landfill face. The 12,000 gallon-per-day limit and restrictions on head in the leachate collection and removal system effectively limit the quantities of leachate that may be recirculated, but the sole provision addressing leachate water quality is the annual monitoring event described above. Given the time required to analyze the many parameters included in the EPA regulation, for most of the year between tests, Republic will be applying over three million gallons of leachate whose pollutant concentrations will be completely unknown. Some assurances emerge, though, when considering air transmission of pollutants by class. In general, on this record, as to transmission by gas, there appears to be an inverse relationship between a compound's volatility, which is a measure of its ability to enter the air, and a compound's persistence. VOCs are one of the most dangerous classes of pollutants to public health and include such carcinogens as benzene, tolulene, xylene and, the most dangerous of all VOCs, vinyl chloride, which is released upon the degradation of such common substances as plastics, carpets, and upholstery. Biogas, which is generated by the anerobic decomposition of organic compounds in a landfill, contains mostly methane and carbon dioxide, but also significant levels of VOCs. When inhaled, the primary results of exposure to VOC are respiratory irritation and allergenic effects. Volatility is measured by vapor pressure, which is a measure of a chemical's ability to get into the air. As their name suggests, VOCs enter the air easily. They are also capable of traveling great distances due to their light molecule. However, VOCs are easily destroyed by sunlight and diluted by wind. Other organic compounds common to landfills are only semi-VOCs, such as PCBs. Although less volatile, these chemicals, too, are hazardous to public health--in the case of PCBs, in any amount. Due to this fact and their persistence in the environment, the United States has prohibited the manufacture of PCBs for over 30 years. However, not only are PCBs considerably less likely to enter the air than VOCs, they also travel shorter distances than VOCs due to a heavier molecule. Dr. Carpenter opined that there is little evidence that PCBs are an issue in the proposed landfill. Another class of organic compound, 1000 times less volatile than even PCBs, is phthalates, which are used in the production of plastics. Phthalates pose significant threats to public health, especially reproductive health. However, the exceptionally low volatility of this compound renders transmission by evaporation highly unlikely. Much of the regulatory framework imposed on landfill design, construction, and operation arises out of concerns for the control of human pathogens, which are infection-causing organisms, such as bacteria, viruses, protozoa, and parasitic worms. One of the great advances in human longevity in the United States occurred in the early 1900s--not with the development of antibiotics or improved medical care--but with the implementation of basic sanitation control and the removal of pathogens from the drinking water. For the proposed landfill, sludge will be the primary source of pathogens. Sludge is nutrient-rich organic matter, which will be received at the proposed landfill without any treatment except possibly dewatering. Even with the acceptance of sludge, the proposed landfill presents little risk for the transmission of pathogens. Pathogens communicate disease only when a person is exposed to an effective dose and are better transmitted by direct contact or animal than air. Bacterial pathogens are themselves killed by wind, as well as sunlight, temperature, and humidity differentials, so the preferred means of air transmission would be aerosol versus gas. The record permits no findings as to the persistence of pathogenic viruses, protozoa, and parasitic worms. However, as noted above in connection with the land transmission of pathogens, the immediate application of lime and cover to the sludge will tend to prevent the release of effective doses of pathogens by air, as well. The last major class of pollutant that could be transmitted by air is heavy metals, such as mercury or lead. Although these metals produce a wide range of neurological diseases and generally interfere with cognition and behavior, Dr. Carpenter admitted that heavy metals were not as much of a concern as VOCs, presumably due to their resistance to vaporization. Even though transmission by air is not as tightly controlled as transmission by water or land, for the four reasons noted above, there is little risk of transmission by air--i.e., dust, aerosol, or gas--when the specific properties of likely pollutants are considered. In all but five respects, then, Republic has provided reasonable assurance that public health will not be endangered by pollutants released from the landfill by water, land, or air. First, to provide reasonable assurance concerning public health, the Permit needs a condition that prohibits spraying leachate during windy conditions, which DEP may define as it reasonably sees fit. As noted in the Conclusions of Law, this is a requirement in the rules and, due to its importance, should be restated explicitly in the Permit, which restates numerous other rule requirements. Second, to provide reasonable assurance concerning public health, the Permit needs more frequent monitoring of leachate water quality, at least at the frequency, as noted in the Conclusions of Law, set forth in the rules. Large volumes of untreated leachate will be recirculated through the landfill. Even if aerosol transmission is controlled, transmission by evaporation of some pollutants, although not the heavy metals, is possible. Also, pollutants are concentrated in recirculated leachate and thus the consequences of transmission into groundwater or surface water, however unlikely, become greater. At the same time, the action leakage rate is generous--to Republic, not the groundwater. At 100 gallons per acre per day, Republic is not required to report to DEP possible liner leakage until about 7300 gallons per day are lost to the surficial aquifer. Suitable for the detection of catastrophic failures associated with most sinkholes, this action leakage rate is too high to trigger action for small liner leaks. If Republic is to be allowed this much leakage into the groundwater, it must identify the leachate's constituents and their concentrations at least semi-annually. Third, to provide reasonable assurance concerning public health, the Application must extend the right of split testing to all of the parties in these cases, if DEP fails to exercise its right to take a split sample. The spraying of untreated leachate and generous limit applied to liner leakage before reporting and remedial action are required underscore the importance to public health of independent leachate testing. There is no reason to allow budgetary constraints or administrative oversight to preclude Petitioners and Intervenor, who are uniquely situated to suffer from the escape of excessive pollutants in the leachate, from providing, at their expense, this independent leachate testing. Fourth, to provide reasonable assurance concerning public health, the Permit needs to restate accurately the language of the rules concerning the extent of knowledge required of Republic, if it is to be liable for the acceptance of certain prohibited wastes. Fifth, to provide reasonable assurance concerning public health, the Permit needs to be modified to ensure that at least one spotter, whose sole responsibility is spotting, will be assigned to each working face while the landfill is receiving waste. Sinkholes The sinkhole issue arises in the geotechnical analysis of the sufficiency of the foundation to support the considerable loads of a landfill and also in the stability of the side slopes of the landfill. This analysis starts with consideration of the geology of the area, of which Republic's property is a part, and, among other things, the potential for sinkhole formation in the area. The Cedar Trail Landfill lies within the Bartow Embayment and along the eastern slope of the Lakeland Ridge of the Central Lake District Physiographic Province. This embayment is a large erosional basin partially backfilled with phosphatic sand and clayey sand of the Bone Valley Member. At this location, the top of the Floridan Aquifer is formed by Suwannee Limestone, which consists of white to tan, soft to hard, granular, porous, very fossiliferous limestone with interbedded dolomite. This rock unit is 110-140 feet thick. Atop the Suwannee Limestone sits the Hawthorne Group, which comprises the Arcadia Formation, at the base of which is the Nocatee Member, which is a relatively impermeable sand and clay unit. Atop the Nocatee Member is the Tampa Member, which consists of hard, dense, sandy, locally phosphatic, fossiliferous limestone. The top of this member, which is the top of the Arcadia Formation, is locally referred to as the "bedrock complex," which marks the lower limit of phosphate mining. Atop the Arcadia Formation, still within the Hawthorne Group, sits the Peace River Formation, which consists of phosphatic clayey sand and clayey sand. The lower portion of the Peace River Formation is a relatively impermeable, undifferentiated clayey unit locally known as "bedclay." The Bone Valley Member of the Peace River Formation is mined for phosphate and is locally known as "matrix." Atop of the Peace River Formation are undifferentiated surficial soils, typically consisting of silty sand, clayey sand, and some hardpan and organic soils. These materials are locally known as "overburden." Phosphate mining is prevalent in the area, including, as noted above, much or all of the Cedar Trail Landfill site. Strip mining for phosphate normally removes the entire surficial aquifer, just into the bedclay. Mined areas are then backfilled with overburden spoil soils, clay, waste clay, and sand tailings. After backfilling, the soil strata bear little resemblance to premining strata. Sinkholes are prevalent in the general area surrounding the Cedar Trail Landfill. A sinkhole is a surface depression varying in depth from a few feet up to several hundreds of feet and in area from several square feet to several acres. Sinkholes are typically funnel-shaped and open broadly upward. Sinkholes form when weakly acidic groundwater creates cavities in the calcium carbonate within limestone. Soils above these cavities erode into the cavities. In the area that includes the Cedar Trail Landfill, cover-collapse and cover- subsidence sinkholes predominate among sinkhole types. A cover-collapse sinkhole, which is typically steep- sided and rocky, forms when cohesive soils over a limestone cavity can no longer bridge the cavity under the weight of overlying soil and rock. At this point, the cohesive soils suddenly collapse into the cavity. These are more common in the part of the state in which the Cedar Trail Landfill is located. A cover-subsidence sinkhole occurs due to the gradual lowering of the rock surface as solutioning occurs in the subsurface rocks. This type of sinkhole develops as subsurface soluble rock is dissolved and overlying soils subside into the resulting shallow surface depressions. Regardless of the type of sinkhole, borings into sinkholes will reveal zones of very loose soil sediments that have washed downward into the cavernous voids within the bedrock. This very loose soil zone is called a raveling zone, which starts at the limestone layer, as the overlying soils begin to collapse into the solution features within the limestone. As the loosening works its way upward toward the surface, it eventually results in the subsidence of the ground surface and formation of a sinkhole. Considerable sinkhole activity has taken place in the immediate vicinity of Republic's property. Most visibly, a sinkhole formed in 2006 in 285-acre Scott Lake, 4.5 miles northwest of the landfill. This sinkhole drained the entire lake and destroyed several structures. The Florida Geological Service sinkhole database, which consists of anecdotal reports of sinkhole activity, some of which are unverified, includes 49 sinkholes within five miles of the proposed landfill. Two documented sinkholes have occurred within .17 mile of the landfill--one of which is reported to be 125 feet in diameter and 80 feet deep. Based upon the information contained in the preceding paragraph, Clint Kromhout, a professional geologist with the Florida Geological Survey, opined on August 23, 2009, that the potential for sinkhole formation "within the proposed site and surrounding area" is "low to moderate." Mr. Kromhout does not provide a definition of "low," but part of his opinion is shared by the Golder Report, which agrees that the sinkhole potential on the proposed site is "low." The potential for sinkhole formation in the general area surrounding the proposed landfill, as distinguished from the site itself, is at least moderate. In their Proposed Recommended Order, Republic and Intervenor necessarily concede: "All parties acknowledge that the proposed landfill site is in a general region that has a relatively high frequency of sinkholes as compared with the rest of the state of Florida." It is misleading to characterize the area surrounding the proposed landfill as of low potential for the formation of sinkholes, unless there is another category, like "nonexistent." But characterizing the sinkhole potential of the surrounding area as moderate is not determinative of the likelihood of sinkholes at the landfill's footprint, nor is a site-specific geotechnical investigation mooted by such a characterization. Rather, characterizing the sinkhole potential of the surrounding area as moderate dictates the intensity and scope of the ensuing geotechnical investigation, if the investigation is to provide reasonable assurance of the structural integrity of the proposed landfill. Acknowledging moderate potential for sinkhole formation in the surrounding area, Republic has appropriately relied on three geotechnical reports, including three sets of boring data. The final of these reports, the Hanecki Report, is based on the collection and analysis of boring data, as well as a review of the data and analysis contained in the two earlier geotechnical reports, the Ardaman Report and Golder Report. The boring data reveal that the proposed landfill site features four units. Nearest the surface is Unit 1, which is brown to dark brown, medium- to fine-grained sand with minor amounts of clayey silt. Unit 1 is 0-10 feet thick. Next down is Unit 2, which is tan to gray, medium- to fine-grained sand with increasing silty clay or clayey silt. Unit 2 is 5-10 feet thick and generally marks the upper limit of fine-grained, granular soils (i.e., clayed sands and silty sands). Unit 3 is orange brown to yellow brown, gray and tan silty clay to clayey silt or fine sand and silty clay. Unit 3 is 5-15 feet thick. Unit 4 is gray and tan clayey silt or silty clay with minor amounts of fine sand. This material is very stiff or very dense, and most borings terminated in this unit. The few borings that penetrated this unit suggest that it may consist of dolomitic sandy clays and silts and dolomitic limestone to depths greater than 100 feet below grade. Units 3 and 4 generally mark the upper limits of low permeability/low compressibility soils. The Hanecki investigation comprised two main steps. First, Hanecki retained a subconsultant to perform electrical resistivity imaging (ERI) along 100-foot-wide transects run across the site. Any anomalies revealed by the ERIs were to be followed by standard penetration test (SPT) borings, which permit soil testing at predetermined intervals, as well as a measure of the compressibility of the soils. Compressibility is measured during the soil-testing intervals, during which the drill bit is replaced by a soil sampler. The driller records the number of blows required for a 140-pound hammer falling 30 inches to produce 12 inches of penetration. The value is expressed in N-values, where N represents the number of such blows. Looser soils produce lower N values. Another important piece of information obtained during SPT boring is the partial or total loss of circulation fluid during drilling. While the drill is penetrating soil, a slurry circulates through the borehole to prevent the collapse of the sides of the hole. This slurry is recycled during drilling, but, if the drill encounters a void, all or part of the circulation fluid is lost. The ERI survey revealed no real anomalies because of a narrow range of resistance values. However, taking relatively small differences in resistivity as an anomalies, Hanecki identified 14 features of interest. At each of these locations, Hanecki performed an SPT boring. Because the ERI transects were unable to span the two onsite ponds, Hanecki added two locations for SPT borings adjacent to each side of each pond, for a total of four additional SPT borings. At the request of DEP, Hanecki added a nineteenth SPT boring at Golder site G-11, which had revealed low N-values during Golder's borings. Hanecki extended the borings into "refusal" quality soil, which was defined as soils requiring more than 50 blows of the 140-pound hammer to achieve six inches or less of penetration. All of Hanecki's SPT borings encountered very hard limestone. Among the most significant findings of Hanecki's borings, only one boring, G-11, experienced any circulation fluid loss, and this was estimated at 50 percent. However, it is more likely that this partial circulation fluid loss is due to loosely deposited sands than a void that might be indicative of conditions suitable for sinkhole formation. Not all circulation losses indicate voids that that will result in sinkhole formation. Also significant among Hanecki's findings is a clayey soil, or bedclay, at every SPT boring, which severely limits hydraulic recharge to the limestone. By impeding vertical migration of surface and shallow subsurface water to the limestone layer, this bedclay "greatly inhibits limestone erosion." This bedclay also supports the looser soils above the bedclay and thus prevents raveling, without which sinkholes cannot form. Two borings--G-11 and F3-1--lacked a layer of Unit 3 or 4 soil above the limestone, but Hanecki concluded that the Unit 2 layers above the limestone at these locations contained sufficient clay or clayey sand to serve the same functions of impeding the downward movement of groundwater and preventing the downward movement of loose soils. This conclusion appears reasonable because Unit 2 is the uppermost reach of the finer- grained materials, of which clays and silts are examples when compared to sands. There is obviously some variability in the distribution of finer- and coarser-grained materials within each occurrence of Unit 2 soils. Hanecki's findings indicated intervals of loose soils, sometimes at depth, which typically would suggest raveling zones. At the proposed location, though, these findings do not support raveling due to the underlying bedclay layer and the history of mining, which probably introduced looser soils typically found closer to the surface through the entire 40-foot depth of the mine cut. Based on these findings, the Hanecki Report concludes that, regardless of at least moderate potential for sinkhole potential in the area, the footprint of the proposed landfill has an acceptably low risk of sinkhole development to permit development of the proposed landfill. This is a reasonable conclusion because it is supported by the data collected by Hanecki and his reasoned analysis of these data. Hanecki's conclusion is also supported by the data and analysis contained in the Golder Report and Ardaman Report, which are based on an additional 84 SPT borings, post- reclamation. Only about 12 percent of these SPT borings reached the limestone, and they cover all of Republic's property, not merely the footprint of the proposed landfill. Even so, these borings confirm two important findings of the Hanecki Report. First, they produced data indicative of an extensive bedclay layer intact on Republic's property. Second, the Ardaman and Golder borings reveal only two or three instances of partial circulation loss that, like the sole occurrence of partial circulation loss in the Hanecki borings, are located on Republic's property, but outside the footprint of the proposed landfill. Republic has provided reasonable assurance that the site will provide an adequate foundation for the proposed landfill and sinkholes are unlikely to undermine the structural integrity of the proposed landfill.
Recommendation It is RECOMMENDED that the Department of Environmental Protection enter a final order granting the Construction Permit and Operation Permit, but only if the Operation Permit is modified by the addition of the five items identified in paragraphs 172, 174, 175, 181, and 187. DONE AND ENTERED this 8th day of October, 2010, in Tallahassee, Leon County, Florida. S ROBERT E. MEALE Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 SUNCOM 278-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 8th day of October, 2010. COPIES FURNISHED: Lea Crandall, Agency Clerk Department of Environmental Protection Douglas Building, Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 Tom Beason, General Counsel Department of Environmental Protection Douglas Building, Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 Mimi A. Drew, Secretary Department of Environmental Protection Douglas Building, Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 Ronald L. Clark, Esquire Clark, Campbell & Mawhinney, P.A. 500 South Florida Avenue, Suite 800 Lakeland, Florida 33801-5271 William D. Preston, Esquire William D. Preston, P.A. 4832-A Kerry Forest Parkway Tallahassee, Florida 32309-2272 Jennings Kemp Brinson, Esquire Clark, Campbell & Mawhinney, P.A. 500 South Florida Avenue, Suite 800 Lakeland, Florida 33801 Sean R. Parker, Esquire Boswell & Dunlap, LLP 245 North Central Avenue Bartow, Florida 33830-4620 Ralph A. DeMeo, Esquire Hopping, Green, & Sams, P.A. 119 South Monroe Street, Suite 300 Tallahassee, Florida 32301 Stanley M. Warden, Esquire Department of Environmental Protection 3900 Commonwealth Boulevard, Mail Station 35 Tallahassee, Florida 32399-3000 Paula L. Cobb, Esquire Hopping Green & Sams, P.A. Post Office Box 6526 Tallahassee, Florida 32314 John W. Frost, Esquire Frost Sessums Van den Boom & Smith, P.A. Post Office Box 2188 Bartow, Florida 33831 John Stanley Fus Highland Lakes Estates HOA 2190 Boardman Road Bartow, Florida 33830
The Issue The issue presented is whether the application of Respondent Robbie's Safe Harbor Marine Enterprises, Inc., for a general permit to construct and operate a solid waste transfer station should be granted.
Findings Of Fact In April 1998 Respondent Robbie's Safe Harbor Marine Enterprises, Inc., filed an application with Respondent Department of Environmental Protection, seeking a general permit to construct and operate a solid waste transfer station at the end of Shrimp Road on Stock Island in Monroe County, Florida. The application was accompanied by the required supporting documentation, including a site plan and an engineering report. The site plan submitted with the application depicted access to the transfer station by using Shrimp Road. The access road was also designated as a private road. What the site plan and remainder of the application did not reveal is that Shrimp Road, the private road providing access from the public road system to the proposed solid waste transfer station, is not owned by Robbie's. Rather, the road is owned by the adjoining property owner, Petitioner Safe Harbor Enterprises, Inc. Robbie's is the holder of an easement allowing use of Shrimp Road. Robbie's published notice of its application for a general permit to construct and operate a solid waste transfer station. As a result of that notice, the adjoining property owner, Safe Harbor Enterprises, Inc., filed the petition initiating the instant proceeding, objecting to the issuance of a general permit to Robbie's. On February 2, 1998, prior to Robbie's filing its application for a general permit to construct and operate its solid waste transfer station, Robbie's entered into a Consent Order with the Department which resolved the Department's allegations that Robbie's had been operating a solid waste transfer facility without a permit.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that a final order be entered denying Robbie's Safe Harbor Marine Enterprises, Inc.'s, application for a general permit to construct and operate a solid waste transfer station. DONE AND ENTERED this 29th day of January, 1999, in Tallahassee, Leon County, Florida. LINDA M. RIGOT Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 SUNCOM 278-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 29th day of January, 1999. COPIES FURNISHED: Roger M. Bernstein, Vice-President Safe Harbor Enterprises, Inc. Post Office Box 144235 Coral Gables, Florida 33144 Tracy J. Adams, Esquire Tracy J. Adams, P.A. 617 Whitehead Street Key West, Florida 33040 W. Douglas Beason, Esquire Department of Environmental Protection 3900 Commonwealth Boulevard Mail Station 35 Tallahassee, Florida 32399-3000 Kathy Carter, Agency Clerk Department of Environmental Protection 3900 Commonwealth Boulevard Mail Station 35 Tallahassee, Florida 32399-3000 F. Perry Odom, General Counsel Department of Environmental Protection 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000
Findings Of Fact The Board of County Commissioners of Monroe County is responsible for maintaining a solid waste management program for the unincorporated areas of the county. The portion of the Florida Keys known as the "lower keys" between Pigeon Key on the north and Key West on the south is such an area. Prior to July 1, 1977, solid waste from this area was dumped at a site located on Middle Torch Key. Until approximately two years prior to the hearing, the Middle Torch Key dump site had been operated by private companies. The private companies apparently could not operate the site profitably under rules and regulations promulgated by the Department, and the County took over operation of the site. The site served as the solid waste dump for the lower keys until July 1, 1977. The Department had issued a temporary operating permit for the site, and open burning was permitted. The temporary permit expired on July 1, 1977. The Middle Torch Key dump site was never operated in full compliance with the Department's rules. The temporary operating permit was issued for the apparent purpose of allowing the County an opportunity to develop a system that could be operated accordance with the Department's rules. The County purchased a site on Cudjoe Key in the lower keys with the intention of utilizing it as a sanitary landfill. The instant proceeding is the culmination of the County's effort to obtain a permit to operate the Cudjoe Key site. The County has been utilizing the Cudjoe Key Site as a sanitary landfill since July 1, 1977. The Petitioners are homeowners in a residential subdivision which is located between three fourths of a mile and one mile from the proposed landfill site on Cudjoe Key. They object to operation of a sanitary landfill in such close proximity to their homes. In order to meet its obligation to maintain a solid waste disposal system, and in order to comply with DER regulations, the County needed to locate a landfill site in the area of the lower keys. The County lacks resources to truck solid waste from the lower keys to any sites in the upper keys, or on the mainland. Tie Cudjoe Key site was chosen for a sanitary landfill for two reasons. First, it was relatively isolated and had been used as a dump before. Secondly, it was for sale, and the County could afford to purchase it. The Cudjoe Key landfill site is not visible from any highway or from any residences or businesses. The site adjoins other public property, and is next to electric company property. The average height of the site is seven to eight feet above sea level. The site is located in close proximity to a borrow pit, and fill is thus obtainable at a fairly inexpensive rate. The County's plan of operation basically is to place solid waste on the site, and to cover it with six inches of landfill at the end of each working day. The site, if used in this manner, would have a useful life of approximately three years. If incineration techniques are eventually permitted, the life expectancy of the site would be increased to approximately twenty years. It does not appear that there is any ideal site for a sanitary landfill in the lower keys. There is very little dry land available that has not been previously developed. It appears that the best present alternative for solid waste disposal for the lower keys would be a joint venture with the City of Key West to desalinate salt water through incinerating activities at a site on Stock Island located just south of Key West. Neither the City of Key West, nor the unincorporated areas of the lower keys produce sufficient solid waste alone to make such a project feasible. Thus far a solution of this sort has not been politically feasible. Aside from this possibility, it appears that the proposed Cudjoe Key site is the best location for a sanitary landfill in the lower keys. The site on Middle Torch Key, which was previously operated as a dump would not comply with the Department's rules. The site is under water at high tide. In order to develop the site so that it would comply with the Department's regulation, a very large expenditure would be required. A copy of the County's completed application to the Department was received in evidence at the hearing as Department's Composite Exhibit 1. The application is complete, and contains the material required under Rule 17-7.05,, Florida Administrative Code. No competent evidence was presented at the hearing from which it could be concluded that the proposed Cudjoe Key landfill site does not comply with statutory requirements, or with the requirements set out in the Department's rules and regulations. Considerable evidence was offered from which it could be concluded that the site has not been operated in full compliance with the Department's regulations since July 1, 1977. Clearly the County has been operating the site since that date without a permit issued by the Department. It is apparent that the Department has not sought to take action against the County due to the pendency of this action. Pictures offered at the hearing, and observations made at the view of the site demonstrate that the required daily cover of solid waste has not been applied at the site. These violations could, and should if they continue, result in enforcement action being taken by the Department. The violations, and anticipated violations cannot, however, constitute grounds for denying a permit to operate a sanitary landfill site which complies with the pertinent statutes and rules and regulations.
Findings Of Fact On November 29, 1988, Respondent, Trans Pac, Inc., (Trans Pac), a development company, filed its initial application for a construction permit to build a hazardous waste treatment and storage facility in Escambia County, Florida. Trans Pac's stock is owned by James Dahl of Los Angeles, California. Trans Pac's president is Steven Andrews. Steven Andrews is also president of The Andrews Group, d/b/a Chemical Development Company. Chemical Development Company is in the business of developing hazardous waste facilities. Sometime after filing its application, Trans Pac advertised for interested persons to contact it about the possible sale of the facility. At the time of the hearing, Trans Pac had not had any serious offers for the property and had not finally decided whether it will sell the facility. Trans Pac is seriously considering a joint venture arrangement, although no specifics as to such an arrangement have been formalized or finalized. When consideration is given to the unripe nature of this "proposed sale", it cannot be concluded that the above facts constitute competent and reliable evidence which would support the conclusion that Trans Pac had failed to give such reasonable assurances that the facility would be operated in accordance with Florida law. Too much speculation is required before such a conclusion can be reached. However, Trans Pac has stipulated that it will publish a notice of any sale prior to the closing of that sale if that event should occur. The notice would be published in accordance with the provisions and time periods established in Rule 17-103.15, Florida Administrative Code, and should afford an affected person a reasonable time to challenge the sale before the sale closes. Any contract of sale would incorporate the notice requirements and the sale would be made contingent upon compliance with the above conditions. Such a notice would afford any affected person the opportunity to challenge the ability of the transferee to operate the facility. With the above stipulation made a part of any permit, there is no failure by Trans Pac to provide reasonable assurances that the facility will be operated in accordance with Florida law. Escambia County is within the West Florida Planning Region. The West Florida Planning Region consists of Bay County, Escambia County, Holmes County, Okaloosa County, Santa Rosa County, Walton County and Washington County. The proposed site for the facility is just outside the community of Beulah, on County Road 99, northeast of and adjacent to the Perdido Landfill. The site is not within, but adjacent to the area designated by the West Florida Regional Planning Council as an area on which a hazardous waste temporary storage and transfer facility could be located. 2/ The proposed site is approximately one mile away from the Perdido River, an outstanding Florida water. The area is primarily a rural area. When the proposed location of this facility was announced in the local news, the value of property around the proposed site decreased. One person, who was within a few miles of the proposed site, lost the contract of sale on his property and was advised by the purchasers that no reduction in price would renew their interest. Another individual's property in the same area decreased in value by approximately $10,000. Many people in the Beaulah area had their dreams and the quiet enjoyment of their property threatened by the location of this facility. Some cannot afford to sell their property and relocate. At present there is no mechanism by which any of the property owners in proximity to the proposed site can recoup their losses. Some property owners believe that such a mechanism should include the establishment of some type of independent trust fund funded with enough money to cover an estimate of such losses, and an independent review of any disputed claims of loss. However, there is no provision under Florida law to impose a permit condition which establishes a procedure to cover the pecuniary losses of property owners close to the facility. The proposed facility will be a permanent storage and treatment facility and will have a maximum waste storage capacity of 106,000 gallons and a maximum treatment capacity of 2,000 gallons per day for neutralization, 5,000 gallons per day for organic separation, 2,000 gallons per day for ozonation, and 4,000 gallons per day for solidification. Hazardous waste is a solid waste which exhibits one or more of the following characteristics: a) ignitability, b) corrosivity, c) reactivity, d) EP toxicity. Such waste can be further classified as a toxic waste or as an acute hazardous waste. 3/ An acute hazardous waste is a solid waste which has been found to be fatal to humans in low doses or, has been shown in studies to have an oral, inhalation or dermal toxicity to rats or rabbits at a certain level, or has been shown to significantly contribute to an increase in serious irreversible, or incapacitating reversible, illness. A toxic waste is any waste containing any one of a number of specified constituents. A "characteristic" of hazardous waste is identified and defined only when a solid waste with a certain type of characteristic may: a) cause or significantly contribute to, an increase in mortality or an increase in serious irreversible, or incapacitating reversible, illness, or b) pose a substantial present or potential hazard to human health or the environment when it is improperly treated, stored, transported, disposed of or otherwise managed, and the characteristic can be: a) measured by an available standardized test, or b) can be reasonably detected by generators of solid waste through their knowledge of their waste. Put simply, hazardous waste is very dangerous to both humans and the environment and will kill or permanently incapacitate living beings and/or make the environment unlivable. Such waste has the potential to create a hazardous waste desert. A solid waste has the characteristic of ignitability if: a) it is a liquid, other than an aqueous solution containing 24 percent alcohol, which has a flashpoint of 60.C (140.F), b) it is not a liquid and is capable, under standard temperature and pressure, of causing fire through friction, absorption of moisture or spontaneous chemical changes and, when ignited burns so vigorously and persistently that it creates a hazard, c) it is an ignitable compressed gas, or d) it is an oxidizer. A solid waste has the characteristic of corrosivity if: a) it is aqueous and has a pH less than or equal to 2 or greater than or equal to 12.5 (strong acids or bases), or b) it is a liquid and corrodes steel at a rate greater than 6.35 millimeters (0.250 inch) per year at a test temperature of 55.C (130.F). A solid waste has the characteristic of reactivity if: a) it is normally unstable and readily undergoes violent change without detonating, b) it reacts violently with water, c) it forms potentially explosive mixtures with water, d) when mixed with water, it generates toxic gases, vapors or fumes in a quantity sufficient to present a danger to human health or the environment, e) it is a cyanide or sulfide bearing waste which, when exposed to pH conditions between 2 and 12.5, can generate toxic gases, vapors or fumes in a quantity sufficient to present a danger to human health or the environment, f) it is capable of detonation or explosive reaction if it is subjected to a strong initiating source or if heated under confinement, g) it is readily capable of detonation or explosive decomposition or reaction at standard temperature and pressure, or h) it is a forbidden or Class B explosive as defined in another federal rule. A solid waste has the characteristic of EP toxicity, if, using certain test methods, the extract from a representative sample of the waste contains certain contaminants (arsenic, barium, cadmium, chromium, lead, mercury, selenium, silver, endrin, lindane, etc.) at a concentration greater than or equal to specified levels for that contaminant. Although the above definitions sound exotic, the wastes which are defined are more often than not the waste generated by routine, normal living. Such waste is the result of almost any type of motor vehicle or machinery maintenance, such as oil and battery changes, metals manufacturing and finishing services, including auto body repair services, transportation services, construction and building repair services, medical and laboratory services, boat building and repair services, dry cleaning, printing of newspapers and 4/ magazines or agriculture, such as gardening. Further, such waste is generated by almost every commercial business category. Almost every person is either directly responsible through use or manufacture, or indirectly responsible through demand for a product or life-style, for the generation of hazardous waste in small quantities. These small individual quantities of hazardous waste add up to a significant portion of all the hazardous waste generated in this state and a significant portion of this waste is not disposed of properly. Improper disposal includes sending the waste to a local landfill or pouring such waste down the drain. Trans Pac's proposed facility will not be permitted for radioactive waste. The types of waste which will be treated and/or stored at the proposed facility are: Singularly or in any combination: D002 Waste --- A solid waste that exhibits the characteristic of corrosivity, but is not listed as a hazardous waste in Subpart D of 40 CFR 261. D003 Waste --- A solid waste that exhibits the characteristic of reactivity, but is not listed as a hazardous waste in Subpart D of 40 CFR 261. D004 Waste --- EP toxicity, contaminant arsenic D005 Waste --- EP toxicity, contaminant barium D006 Waste --- EP toxicity, contaminant cadmium D007 Waste --- EP toxicity, contaminant chromium D008 Waste --- EP toxicity, contaminant lead D010 Waste --- EP toxicity, contaminant mercury D011 Waste --- EP toxicity, contaminant silver Singularly or in any combination: F001 Waste --- TOXIC -- Spent halogenated solvents used in degreasing: tetrachloroethylene trichloroethylene, 1,1, 1-trichloroethane, methylene chloride, carbon tetrachloride, and chlorinated fluorocarbons, all spent solvent mixtures/blends used in degreasing containing, before use, 10 percent or more of one or more of the above halogenated solvents or those listed in F002, F004, or F005; still bottoms from the recovery of these solvents and mixtures F002 Waste --- TOXIC -- Spent halogenated solvents: tetrachloroethylene, methylene chloride, trichloroethylene, 1,1,1- trichloroethane, chlorobenzene, 1, 1, 2-trichlor-1, 2, 2-trifluoroethane, ortho-dichlorobenzene trichlorofluoromethane, 1, 1, 2 - trichloroethane, spent solvent mixtures/blends containing, before use, a total of 10 percent or more of one of the solvents listed in F001, F004, F005; and still bottoms from the recovery of these spent solvents and mixtures F003 Waste --- IGNITABLE -- Spent non-halogenated solvents: xylene, acetone, ethyl acetate, ethyl benzene, ethyl ether, methyl isobutyl ketone, n-butyl alcohol, cyclohexanone, methanol, all spent solvent mixtures/blends containing, before use, one or more of the above non-halogenated solvents and a total of 10 percent or more of the solvents listed in F001, F002, F004, F005; and still bottoms from the recovery of these spent solvents and mixtures F004 Waste --- TOXIC -- Spent non-halogenated solvents: creosols and cresylic acid, nitrobenzene, spent solvent mixtures/blends containing, before use, a total of 10 percent or more of the above non-halogenated solvents or the solvents listed in F001, F002, F005; and still bottoms from the recovery of these spent solvents and mixtures F005 Waste --- IGNITABLE, TOXIC -- Spent non- halogenated solvents: toluene, methyl ethyl ketone, carbon disulfide, isobutanol, pyridine, benzene, 2-ethoxyethanol, 2- nitropropane, spent solvent Mixtures/blends containing, before use, a total of 10 percent or more of the above non-halogenated solvents or those solvents listed in F001, F002, F004; and still bottoms from the recovery of these spent solvents and mixtures F006 Waste ---TOXIC -- Wastewater treatment sludges from electroplating from certain specified processes Singularly or in any combination: F007 Waste --- REACTIVE, TOXIC -- Spent cyanide plating bath solutions from electroplating operations F008 Waste --- REACTIVE, TOXIC -- Plating bath residues from the bottom of plating baths from electroplating operations where cyanides are used in the process F009 Waste --- REACTIVE, TOXIC -- Spent cleaning and stripping bath solutions from electroplating operations where cyanides are used in the process F010 Waste --- REACTIVE, TOXIC --Quenching bath residues from oil baths from metal heat treating operations where cyanides are used in the process F011 Waste --- REACTIVE, TOXIC -- Spent cyanide solutions from salt bath pot cleaning from metal heat treating operations F012 Waste --- TOXIC --Quenching wastewater treatment sludges from metal heat treating operations where cyanides are used in the process Singularly or in any combination: Petroleum refining: K048 Waste --- TOXIC -- Dissolved air flotation (DAF) float from the petroleum refining industry K049 Waste --- TOXIC -- slop oil emulsion solids from the petroleum refining industry K050 Waste --- TOXIC -- heat exchanger bundle cleaning sludge from the petroleum refining industry K051 Waste --- TOXIC -- API separator sludge from the petroleum refining industry K052 Waste --- TOXIC --- tank bottoms (leaded) from the petroleum refining industry Iron and steel: K062 Waste --- CORROSIVE, TOXIC -- spent pickle liquor generated by steel finishing operations of facilities within the iron and steel industry Ink formulation: K086 Waste --- TOXIC -- solvent washes and sludges, caustic washes and sludges, or water washes and sludges from cleaning tubs and equipment used in the formulation of ink from pigments, driers, soaps and stabilizers containing chromium and lead Secondary lead: K100 Waste --- TOXIC -- wastewater leaching solution from acid leaching of emission control dust/sludge from secondary lead smelting The federal law which governs hazardous waste is the Resource Conservation and Recovery Act (RCRA) and its amendments. The RCRA was part of the initial federal effort to manage hazardous waste and expressed a clear preference for the reduction of hazardous waste over managing such wastes at treatment, storage or disposal facilities. The Act required EPA to develop a national plan to manage and regulate hazardous waste and provide states with incentives to develop state hazardous waste management plans. Most of the incentives were based on the availability of federal funds. The federal funds were contingent on the states assuring EPA that a particular disposal site would be available for disposal of any waste generated by a remedial action taken under the Act. In 1980, Congress passed the Comprehensive Emergency Response Liability Act (CERCLA). The Act granted EPA the authority and funds to respond to uncontrolled site cleanup, emergency remedial activities, spills and other incidents due to hazardous waste. 5/ As of November, 1989, five such remedial sites are located in Escambia County. The Act also defines the liability of businesses that generate, transport and dispose of hazardous waste. Generators of hazardous waste, generally, have "cradle to grave" liability for the waste they generate. In 1980, the Florida Legislature enacted the state's first hazardous waste law. The law primarily adopted the federal regulations and guidelines on hazardous waste and established separate procedures for permitting and site selection of hazardous waste facilities. The act also directed DER to develop and implement a state hazardous waste management plan. The portions of the 1980 law relative to site selection (403.723, Florida Statutes) provided a cabinet override of a local decision adverse to the location of a hazardous waste facility. In order to obtain a cabinet override, the facility had to have been issued a permit by DER. Need for a hazardous waste facility was not addressed in either the permitting or site selection processes of the Act. In 1983, the legislature passed the Water Quality Assurance Act. The Act amended 403.723, Florida Statutes, to provide that each county prepare a Hazardous Waste Facility Needs Assessment and "designate areas within the County at which a hazardous waste storage facility could be constructed to meet a demonstrated need." The Act further provided in 403.723, Florida Statutes, that, after the counties had completed their assessments, each regional planning council, likewise, would prepare a regional Hazardous Waste Facility Needs Assessment and "designate sites at which a regional hazardous waste storage or treatment facility could be constructed." The regional Assessment included a determination of the quantities and types of hazardous waste generated in the region, a determination of the hazardous waste management practices in use within the region, a determination of the demand for offsite hazardous waste management services, a determination of existing and proposed offsite management capacity available to hazardous waste generators, a determination of the need for additional offsite hazardous waste facilities within the region, and the development of a plan to manage the hazardous waste generated in the region and/or to provide additional offsite hazardous waste treatment or storage facility needs. As noted earlier, these plans and designations were required to be made part of the county and regional comprehensive plans. The regional Assessment was completed by the West Florida Regional Planning Council in August of 1985. The assessment was based on a survey of suspected hazardous waste generators in the region. An overall response rate of 76.8 percent was received. The study showed that all types of hazardous waste, except for cyanide waste, are generated within the West Florida Planning Region. 6/ The quantity of hazardous waste produced annually within the region was estimated to be 14,245,064 pounds. The estimates for each County were as follows: Escambia County, 4,582,872 pounds; Okaloosa County, 3,203,534 pounds; Bay County, 2,433,343 pounds; Santa Rosa County, 1,866,831 pounds; Holmes County, 381,840 pounds; Walton County, 229,984 pounds; and Washington County, 170,244 pounds. Based on the survey responses, the study estimated that 11,903,738 pounds (83.6%) of hazardous waste generated annually within the region was not being properly treated or disposed of. The vast majority of the waste (78.1%) found to be improperly treated was a combination of waste oils and greases, spent solvents, and lead-acid batteries. Neither the waste oil and greases or lead- acid batteries are wastes which will be managed at the proposed Trans Pac facility. The study found that a recycling or reuse market existed for waste oil and greases, spent solvents and lead-acid batteries; and therefore, there was no need for a transfer/temporary storage facility. The remaining 2,602,630 pounds of hazardous waste not being properly managed was generated by both large and small quantity generators and is subject to a variety of appropriate waste management methods. The management plan adopted by the West Florida Regional Planning Council sought to encourage first waste reduction, second waste recycling, reuse or recovery, third onsite treatment or incineration methods, and fourth transporting wastes to offsite temporary storage facilities. One of the goals of the plan was to discourage, as much as possible, the importation of hazardous waste from outside the region, and particularly, with the close proximity of the Alabama state line, from outside the state. The plan concluded that due to the small quantity of mismanaged hazardous waste in the region there was no need for a permanent treatment and storage facility. The only need found to exist within the region was for a temporary transfer and storage facility. That need has since been met by a temporary transfer and storage facility located in Pensacola, Florida. 7/ However, Escambia County issued a Certificate of Need for a hazardous waste transfer, storage and treatment facility to Trans Pac on February 28, 1989. The Certificate of Need was issued pursuant to County Ordinance Number 85-7. The ordinance provides in relevant part that a Certificate of Need may be issued upon the Board's determination that the service or facility for which the certificate is requested "answers a public need, is necessary for the welfare of the citizens and residents of the county, is consistent with any solid waste management plan adopted pursuant to [this ordinance], and will not impair or infringe on any obligations established by contract, resolution, or ordinance." The ordinance further provides that no Certificate of Need may be denied solely on the basis of the number of such certificates in effect at the time. The issuance of that certificate appears to have been granted on the sole representations of need given by Trans Pac to gain issuance of the certificate and at a time when the Board's attention and consideration of the facility was on matters other than the true need as established in the regional plan or the exact service Trans Pac would actually provide. The evidence suggests that no formal or informal investigation of Trans Pac's representations or on the actual need of the region was conducted by the Board. Such an investigation was informally conducted by some of the Board members after the proposed facility became apparent to members of the public. The members of the public raised a great hue and cry of opposition towards the construction of the facility and prompted a closer look at Trans Pac's representations. The Board members who did conduct the informal investigation found there was no need for the facility within the county or region and discovered that the Certificate of Need had been issued in error. No evidence was presented that the County had ever formally rescinded the issuance of Trans Pac's certificate. However, the evidence did show that there was a de facto rescission of Trans Pac's certificate when the County authorized the filing of this administrative action. 8/ Trans Pac would have the ability to treat and store some of the waste generated in the region and some waste which is not generated in the region. Trans Pac would not treat or store a large part of the waste generated in the region. The small amount of regional waste which Trans Pac would be capable of handling would not be profitable. In order to be profitable, most of Trans Pac's waste would have to come from outside the region and/or the State. In 1986, Congress passed the Superfund Amendments and Reauthorization Act (SARA). The Act amended CERCLA to provide that, three years after the Act's effective date, a state could not receive any superfund monies unless the state entered into an agreement with the President providing assurance of the availability of hazardous waste treatment or disposal facilities which would have enough capacity for the treatment, disposal or storage of all hazardous waste generated within the state over the next 20 years. SARA was enacted because Congress did not believe that Superfund money should be spent in states that were taking insufficient steps to avoid creation of more superfund sites. Such steps included some provision for the future secure disposal or management of hazardous waste generated within that state. It was feared that certain states, because of public opposition and political pressure, could not create and permit enough hazardous waste facilities within their borders to properly manage, either through disposal or treatment, the hazardous waste generated within those states. Put simply, SARA requires each state to keep its own house clean and be responsible for the hazardous waste generated within its borders. SARA did not require the states to develop or permit hazardous waste facilities. The Act only required that each state provide assurances that the state possessed the capacity to manage or securely dispose of hazardous waste produced in that state over the next 20 years. Such assurances could take the form of developing hazardous waste treatment and storage facilities within that state's borders or by exporting its waste to another state. However, in order to provide adequate assurances of capacity if a state chose to export its hazardous waste, that state must enter into an interstate or regional agreement with the importing state. Such agreements could include contracts to ship hazardous waste to public or private facilities. Other assurances of capacity could be obtained through programs for the reduction of hazardous waste within the state. Whatever method of assurance adopted by a state, the goal of SARA was to force the states to provide assurances that their legislative program for the management of hazardous waste generated within their borders could work and would be used. In October, 1979, Florida entered into a Capacity Assurance Plan (CAP) with the President. The CAP established and implemented the statewide management plan required under the state statutes described earlier and under the SARA. The CAP is made up of four major components and includes a regional agreement between Florida and the other EPA Region IV Southeastern States. The four major components of the CAP are: 1) an assessment of past hazardous waste generation and capacity at facilities within or outside of Florida; 2) documentation of any waste reduction efforts that exist or are proposed for the future; 3) future projections of waste generation and capacity either within or outside of Florida and an assessment of any capacity shortfalls; and 4) descriptions of plans to permit facilities and a description of regulatory, economic, or other barriers which might impede or prevent the creation and permitting of such new facilities. The data gathered for the CAP showed that Florida currently has and will have a shortfall in its capacity to properly manage and dispose of its own hazardous waste. Therefore, Florida must provide and implement a way to increase its capacity for the management and disposal of the waste it now generates and will generate in the future or lose its funding for cleanup of superfund sites. Florida's plan to meet that shortfall consists of the interstate agreement, a commitment to a multistate treatment and storage facility and underfunded and understaffed incentives to reduce the generation of hazardous waste. The interstate agreement between the EPA Region IV Southeastern States is an effort at cooperative planning between these states for the management of hazardous waste. In reality, every state, including Florida, imports some hazardous waste from other states. Florida's imports are predominantly spent solvents and waste which can be burned as fuel. All of the imported waste was treated at recovery facilities located within the state. The majority of these imports came from Alabama, Georgia, Louisiana, Virginia and South Carolina. However, even with these imports, Florida is primarily an exporter of hazardous waste. The main recipients of Florida's exports are Alabama and South Carolina. 9/ The agreement, therefore, includes provisions on applicable interstate waste flow characteristics and quantities and on projected exports and imports between and among the participating states. The agreement provides that hazardous waste facilities presently exist or will be created and permitted to manage such exported waste. Besides the interstate agreement, Florida's plan includes a commitment to permit a multipurpose hazardous waste storage and treatment facility. The site selected for the facility is located in Union County. The permit has not yet been issued for this facility. However, the application for the facility is being processed by DER under the special statutes dealing with the Union County facility. Trans Pac's proposed facility is not required for the state to meet its assurances under the CAP entered into with the President. The hoped for benefit of the commitment to a statewide multipurpose facility is to allow Florida to reduce the amount of waste requiring export, but, at the same time allow enough waste to be exported, in accordance with the interstate agreement, to supply a sufficient waste stream to facilities in other states which need such additional waste in order to stay open. Florida's CAP also includes a waste reduction plan. The waste reduction plan is embodied in its Waste Reduction Assistance Program. The philosophy of the program is that recycling (particularly waste oil) and reduction of hazardous waste will produce greater long term across-the-board cost savings to both business and government, as well as the obvious benefit of having less of this very dangerous pollutant around in the environment. The program is not mandatory and is information-oriented. It consists of technical assistance, limited economic incentives (some of which have not been funded by the legislature), research and development, education and a waste exchange program operated by FSU and the Chamber of Commerce. The waste exchange program puts businesses in touch with other businesses who can use their waste for recycling or recovery. Additionally, in conjunction with Florida's CAP, the legislature passed Senate Concurrent Resolution #1146. The resolution states in part that, except for the siting of the Union County facility, "the Legislature has not and does not intend to enact barriers to the movement of hazardous waste and the siting of hazardous waste facilities for the storage, treatment, and disposal, other than land disposal, of hazardous waste." As can be seen from an overview of Florida's CAP, Trans Pac's proposed facility, while not being directly a part of the CAP, will have an impact on the implementation of that plan should state need not be a criteria for the issuance of a permit. A few of these potential impacts are listed below. First, a facility the size of Trans Pac's proposed facility has the potential to divert some waste away from the proposed Union County facility and may cause that facility to be unprofitable and inoperable. Second, Trans Pac's proposed facility may enable the State to handle more of its waste within its borders, thereby reducing its exports and Florida's dependency on the good offices of other states. Such reduction may or may not have an adverse impact on the interstate agreement contained in the CAP if Florida cannot meet the amount of waste established for export under that agreement. Third, Trans Pac's proposed facility has the potential to decrease the effectiveness of the State's hazardous waste reduction program by encouraging the use of its facilities instead of reduction, recycling or recovery methods. Such a decrease would be highly dependent on the prices charged by various hazardous waste facilities vis. a vis. reduction, recycling or recovery expenses, the cost of transportation to the various types of facilities, and the ease of use among the various types of facilities and reduction methods. Fourth, not considering at least the needs of the State for a hazardous waste facility allows the state to become a dumping ground for hazardous waste generated in other states. 10/ No evidence was presented on any of these points and because of the conclusions of law such an issue is not ripe for consideration in this case.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that the Department of Environmental Regulation enter a final order granting the application of Trans Pac, Inc., for a permit to construct a hazardous waste treatment and storage facility in Escambia County, Florida subject to a permit condition requiring a pre-sale notice as described in this Recommended Order. DONE and ENTERED this 16th day of April, 1990, in Tallahassee, Florida. DIANE CLEAVINGER Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 Filed with the Clerk of the Division of Administrative Hearings this 16th day of April, 1990.
Findings Of Fact On February 1, 1977, DER issued an operation permit to Respondent Hillsborough County for the operation of a solid waste disposal facility (sanitary landfill) with an area of 42 acres, located at Taylor Road and Sligh Avenue in the northeast portion of Hillsborough County. The permit was effective for a period of two years and contained various conditions which required the permittee to abide by applicable rules of the DER. The conditions also specified that water samples from monitoring wells and from any waters discharged from the site should be taken and analyzed to determine water quality and such analysis submitted to the Hillsborough County Environmental Protection Commission (HCEPC) acting as the agent for DER within Hillsborough County. The conditions further prohibited open burning at the site without prior approval, control of any objectionable odors, provision for sufficient equipment, and controlled access to the site. (Exhibit 22) In December 1978, Hillsborough County applied for renewal of its operation permit until February 1, 1980. The application and accompanying letter showed that the county wished to operate the site as a "high rise land fill" due to the fact that dirt accumulated from trench excavation had raised the ground level approximately ten feet. In July, 1979, after submission of requested additional information to DER during the preceding months, the county director of solid wastes submitted closeout plans for the landfill to DER and advised that they were filing a permit application for a new landfill to the east of the current site, utilizing a borrow pit area which had been transferred to the county by the State Department of Transportation. Thereafter, by letter of October 23, 1979, the Hillsborough County Administrator requested that DER consider the previous application for renewal of its operating permit to be withdrawn and that the application be viewed as one for a temporary operating permit. (Exhibit 1) During the month of August 1979, several inspections of the existing landfill were made by DER, HCEPC, and Regional EPA personnel. A series of memos prepared by the agency personnel reflected that various violations of DER rules governing landfills had been found during the course of the inspections. These included uncontrolled ponding of water in low areas on the site, failure to control the runoff of surface water, lack of adequate control to prevent unauthorized access to the site, failure to provide the requisite six inches of daily cover over the compacted waste, lack of proper ground water monitoring, and destruction of several wells by heavy equipment, and frequent breakdown of equipment used at the site. Residents living nearby or adjacent to the landfill have observed ponding, uncontrolled runoff, and unauthorized personnel on the site. They have experienced a high incidence of rats, birds and flies on their property and have seen septic tank waste trucks at the landfill. They further have noted uncovered garbage and have seen waste flow from the landfill into the area of Interstate Highway 4 which borders the south portion of the site. The State Department of Transportation has also made complaints to the county concerning dirt and debris on the interstate right-of-way. In a letter to DER, dated October 2, 1979, the county director of public utilities and safety responded to the various complaints and alleged violations. He acknowledged the validity of a number of the problems and indicated the corrective action that had or would be taken to prevent recurrence. (Testimony of Brantner, Warner, Smoot, Exhibit 8, supplemented Exhibits 10-15, 20, 23) By letter of October 23, 1979, DER's Southwest District manager issued Notice of Intent to issue a temporary operation permit for the high-rise landfill pursuant to Section 403.087, Florida Statutes, and Sections 17-4.07, Florida Administrative Code, with an expiration date of February 1, 1980. The stated reasons for the proposed issuance of the permit were because the facility did not qualify for an operation permit, but the applicant was making bona fide efforts to provide an acceptable alternate waste disposal system, and that the permit would allow time to establish a five-year monitoring program to ensure that the site had stabilized and was not a significant water pollution source. Conditions attached to the proposed permit were such as to reasonably preclude the recurrence of past violations with regard to daily cover, controlling access to the site, establishment of a gas monitoring program, and installation of additional monitoring wells for periodic sampling as to water quality. A compliance schedule was stated which required the submission of plans to accomplish the requirements of the permit and such schedule called for the cessation of all filling operations by February 1, 1980 and commencement of the closeout operation on March 1, 1980. The petitions for hearing herein were thereafter filed with DER and referred to this Division on November 15, 1979. (Exhibit 3) In December, 19.79, DER received notification from the regional office of the United States Environmental Protection Agency that volatile organic analysis on well supply samples from private residences in the vicinity of the landfill indicated a potential health risk and that the agency had therefore advised the well owners not to drink the water. Inspections of the landfill in mid-January 1980 by DER and HCEPC personnel showed that solid waste was not being adequately covered on a daily basis and that ponding of water in various areas was observed. The county attributed the ponding to heavy rainfall during the period, but claimed that the waste had been covered on a daily basis although the heavy equipment had scattered paper and other debris through the cover soil in view of the sticky nature of the clayey soil. (Exhibits 6, 16-18) After Hillsborough County officials became aware of the EPA well tests, a private consulting firm of ground water hydrologists and geologists was employed by the county to undertake a water quality analysis of the round water in and around the landfill. The program commenced in late December 1979, and a preliminary assessment of ground water quality was submitted in February 1980. Water samples were taken from private wells adjoining the landfill and from a well within the landfill itself. Analysis of the samples led to preliminary conclusions that organic and inorganic constituents of samples from within the landfill correlated well with those wells adjacent to the landfill, thereby suggesting landfill leachate as a source of contaminants. However, the consultants are of the opinion that several wells which exhibited traces of organic but no discernible inorganic contaminants may be affected by sources of contamination not related to landfill leachate, such as petroleum products, septic tank cleaners, and other household products. It was found that inadequate regional and site specific hydrogeologic data was available upon which to base a complete statistical analysis. It was further found that the wells used in the study were "uncontrolled" and therefore did not represent a valid basis for determining the origin of their contamination. Further study is planned which will involve testing of samples from twenty new monitoring wells designed to determine the rate of movement and attenuation of leachate. The results of such study will be available within five or six months. Although it is generally agreed that ground water flows in a southwesterly direction at the site, more information is required to ascertain the precise direction of flow. At the present time surface water falling on the landfill flows toward a county owned borrow pit to the southwest of the landfill. (Testimony of Schreuder, Becker, Bush, Exhibits 7, 19) The closing plans for the landfill site provide for surface water to be channeled away from the area and directed through swales to travel in the natural direction to the west. A final two-foot cover of soil will be place over completed cells and a three and one-half foot cover of compacted soil will be placed on side slopes of the landfill. Such final cover and grading of the area is designed to preclude infiltration of surface water. Trees will be planted around the periphery of the area and trenches will be dug to force any gases upward to a high point where an exhaust will be placed. Soil borings show that there is an extensive layer of clay at the bottom of the landfill but the permeability of this material is unknown. The solid waste cells are at a maximum of 40 feet below the ground surface and the average height of the compacted waste above ground surface is approximately 28 feet. The county permanently ceased accepting solid waste at the landfill on February 11, 1980, and has commenced closing operation to a minimal degree. As a result of the fact that solid waste is no longer being accepted, the intended elevation to be reached in the southern portion of the site will not take place and accordingly the closing plan will have to be revised in that respect. It is estimated that closing will take approximately one year to accomplish. Upon final closing with vegetative cover and proper grading, it is anticipated that pending and vector problems will be resolved. At the present time, inadequate fencing exists around the boundaries of the landfill. (Testimony of Bush, Becker, Exhibits 2- 21) In recognition of the fact that Hillsborough County ceased using the landfill for disposal of solid waste, the county and DER entered into a written stipulation, dated February 25, 1980, confirming this fact and revising special conditions to the proposed temporary operating permit. These conditions included a proviso that the proposed permit would expire three years from the date of issuance to permit a long-term monitoring and surveillance program to be conducted until the site has stabilized and is not a significant water pollution source. The conditions also call for the county to establish an acceptable program for monitoring gases at different points within the landfill, to control access to the site, and to complete the study to determine the extent and source of any infiltration of foreign substances into the ground water from the site. In addition, the conditions would require the county to submit an acceptable plan for long-term monitoring of ground water, including the installation of additional monitoring wells if required. It also provides that the final closeout of the site shall be completed within one year from the date of the final order and that such closeout shall be completed in accordance with applicable law and in accordance with previous closeout plans to the extent made possible by final elevations. (Exhibit 4)
Recommendation That the applicant Hillsborough County be issued a temporary operating permit for the closing of the landfill specified in the application. DONE and ENTERED this 26th day of March, 1980, in Tallahassee, Florida. THOMAS C. OLDHAM Hearing Officer Division of Administrative Hearings 101 Collins Building Tallahassee, Florida 32301 (904) 488-9675 COPIES FURNISHED: Honorable Jacob Varn Morris W. Milton, Esquire Secretary, Department of Douglas A. Mulligan, Esquire Environmental Regulation Post Office Box 13517 2600 Blair Stone Road St. Petersburg, Florida 33713 Tallahassee, Florida 32301 Alfred W. Clark, Esquire Vincent L. Nuccio, Jr., Esquire Department of Environmental Post Office Box 1110 Regulation Tampa, Florida 35601 2600 Blair Stone Road Tallahassee, Florida 32301 Gene T. Hall, Esquire Elliot Dunn, Esquire 209 East Robertson Street Post Office Box 1110 Brandon, Florida 33511 Tampa, Florida 33601 Richard S. Smoot Ronald Frink, President Post Office Box 682 Florida Water Well Association Seffner, Florida 33584 Post Office Box 11648 Tampa, Florida 33680
Findings Of Fact This proceeding concerns an application for authority to construct and operate a 20-acre Class I, Class III, and an asbestos municipal solid waste landfill, as well as to close an existing 25.5-acre Class I municipal solid waste landfill located in Holmes County, Florida. This facility would function as a new regional landfill, in part, to replace the existing landfill in Holmes County. The applicant, EPAI, is a Florida corporation formed for the purpose of constructing and operating the proposed facility. EPAI has an option to purchase the site involved from its present owner, which will be accomplished after the facility is permitted, if it is, and all necessary permits for construction and operation have been obtained, then the applicant will sell stock in its corporation to City Management Corporation (City) domiciled in Detroit, Michigan. EPAI will then continue to exist as a wholly-owned subsidiary of City and will proceed to construct and operate the new landfill and initiate and complete all closure operations for the existing landfill. The Department of Environmental Regulation is an agency of the State of Florida subject to the provisions of Chapter 120, Florida Statutes, and charged with enforcing the provisions of Chapter 403, Florida Statutes, and Chapter 17- 701, FAC, as pertinent to this proceeding. It is thus charged with regulating solid waste management facilities, including permitting their construction, operation, and closure. It is charged with reviewing applications for such projects and issuing permits therefor if the statutes and rules it is charged with enforcing are found to have been complied with by a permit applicant. It has performed that function in this case up until the point that jurisdiction of the permit application dispute engendered by the filing of the subject petition resulted in transfer of the matter to the Division of Administrative Hearings. The Petitioner, CVA, is a group of Holmes County citizens opposing issuance of the landfill permit at issue. Based upon rulings on the motions to dismiss and extant law, CVA was required to present proof of its standing at the final hearing held in this cause. CVA called two witnesses, neither of whom presented evidence relevant to the issue of standing. CVA did not present any evidence, either through testimony or exhibits, to identify its members, to establish that a substantial number of its members would be affected by the issuance of the permit and the construction and operation of the landfill nor evidence which would identify members whose substantial interests will be affected by the construction and operation in a way different from any effect on the interests of the public at large. Project Background Holmes County currently leases a site on which its existing landfill is located. The site consists of 84 acres owned by Stone Container Corporation, the successor in interest to International Paper Company. The existing landfill itself covers approximately 25.5 acres. The proposed facility to be located on the same tract would serve as a new regional landfill to meet the solid waste disposal needs of Holmes County, as well as surrounding counties. The proposed facility would consist of approximately 20 acres divided into Class I, Class III, and asbestos landfill facilities. The project will be located on To Shoo Fly Bridge Road, lying approximately 3.3 miles northwest of the City of Bonifay in Holmes County. The northern portion of the present landfill is an unlined cell operated by the county which began receiving waste in 1979 and ceased depositing waste sometime in 1987. The southside cell of the landfill is clay lined with a leachate collection system. That portion of the county facility ceased accepting waste sometime in 1990. Holmes County is unable to properly operate or to close the existing landfill. Consequently, in June of 1989, the county and the Department entered into a consent order whereby the county agreed to meet certain operational, groundwater monitoring, landfill cell design, administrative and other requirements within certain time periods. The county attempted to meet the terms of that consent order but was unable to do so, primarily for financial reasons. In 1990, the county applied to the Department for a permit to close the existing landfill in accordance with the pertinent provisions of Chapter 403, Florida Statutes, and Chapter 17-7, FAC. The closure permit application was denied by Department order of May 22, 1991. Waste disposal at the Holmes County landfill had ceased in 1990, but it has not been properly closed pursuant to law and Department rules. Currently, it only has a temporary cover of soil and seeded grass in order to stabilize its slopes on the portion of the landfill commonly known as the "highrise". The closure costs for the existing landfill were estimated at approximately $700,000.00, which is beyond the resources of the county. Residents of unincorporated Holmes County currently are disposing of their solid waste by hauling it to the regional landfill in Campbellton in Jackson County nearby or by dumping it in unauthorized disposal areas, such as streams or roadsides. The City of Bonifay disposes its solid waste in the Campbellton landfill, as well. The Campbellton landfill, however, does not accept several solid waste components, such as yard trash. Since the county was unable to obtain the necessary permits to either operate or to close the existing landfill and was unable to meet State-mandated solid waste disposal and recycling requirements, it entered into an agreement with EPAI in May of 1990, whereby that entity assumed financial and legal responsibility for closure of the existing landfill, including obtaining the necessary permits from DER to close it, upon issuance of DER permits necessary to construct and operate a new Class I, Class III, and asbestos landfill at the same general site. The May 21, 1990 agreement between EPAI and the county authorized EPAI to so proceed before DER. Once EPAI obtained the permits necessary, the agreement provided that the county would surrender all right, title and interest in the 84-acre site to EPAI, convey all structures, equipment and appurtenances theretofore used by the county for its landfill operation to the corporation and to assign EPAI any legally assignable benefits which the county would receive under the 1988 Solid Waste Management Act, including recycling grants, if applicable. EPAI, the applicant, has an option to purchase the 84-acre site from Stone Container Corporation. After the issuance of any permits for closure and for construction and operation of the new facilities, the option would be exercised and the property would be conveyed by Stone Container Corporation to EPAI. Once it has purchased that property and the county has abandoned its lease on the property, pursuant to the May 21, 1990 agreement, EPAI would then hold fee title ownership and possession rights to the site. Once it obtained the necessary permits for construction and operation of the new landfill, EPAI will sell its stock to City. EPAI would then continue to exist as a wholly- owned subsidiary of City and will construct and operate the new landfill and close the existing landfill. City is a wholly-integrated waste management corporation based in Detroit, Michigan. It has been operating in the solid waste management field since 1961 and has extensive experience in landfill construction, operation and closure. It operates seven regional landfills, approximately ten transfer stations, and 30-40 residential and commercial solid waste collection companies in Michigan. It also operates hazardous waste facilities in Michigan and in Tampa, Florida. Through construction and operation of its regional landfill and hazardous waste facilities, it is familiar with and accustomed to compliance with all pertinent state and federal regulations applicable to such facilities. City holds a DER permit for its hazardous waste facility in the Tampa, Florida, area and has had a history of no major violations of applicable laws and rules. The corporation was shown to be financially sound. EPAI will operate the proposed facility, should it be permitted, as a regional landfill serving neighboring counties between Okaloosa and Jackson Counties, south to the Gulf of Mexico, and north to the Alabama border. The economic feasibility, however, was not shown to depend on interstate transport or disposal of out-of-state wastes in the landfill. Section 17-701.030, FAC, sets forth the permit submittal requirements for solid waste management facilities. CVA stipulated that EPAI met all applicable permit application submittal requirements in this section, except those in Sections 17-701.030(5)(h) & (i) and 17-701.030(7), FAC. EPAI has an option to purchase the landfill site from Stone Container Corporation, the current owner. EPAI has met the ownership requirement in Section 17-701.030(5)(h), FAC. The applicant will establish an escrow account to insure financial responsibility for closing and long-term care and maintenance of the landfill. A specific condition has been agreed to be placed in the permit requiring the applicant to submit written proof of having established financial assurance for closure and long-term care of the entire site 60 days prior to the acceptance of any solid waste at the facility and within 30 days after permit issuance for operations at the existing landfill. City has the financial ability to establish the escrow account and to provide the necessary financial assurance within 30 days after permit issuance. The applicant has thus satisfied the requirements of 17-701.030(5)(i), FAC, with regard to financial responsibility. Section 17-701.030(7), FAC, requires DER to forward a copy of the permit application to the Water Management District within seven days of receipt of the application. The Water Management District would then prepare an advisory report for DER on the landfill's potential impact on water resources with recommendations regarding disposition of the application. The Department sent the application to the Northwest Florida Water Management District, but the District did not prepare an advisory report. The administrator for the waste management program for the Department's northwest district office, who oversees solid waste facility permitting, testified that, as a matter of course, the District does not prepare an advisory report. Moreover, because the reports are advisory only, DER is not required to respond to any comments or follow any recommendations which may be made by the District in such a report. The Department normally issues solid waste facility permits as a matter of policy without having received a water management district report. 1/ Location and Site Requirements An aerial photograph of this area was prepared, as required by Section 17-701.050(4)(a), FAC. It shows the land uses, zoning, dwellings, wells, roads, and other significant features within one mile of the proposed landfill. This map shows several dwellings located within a mile of the site. The closest dwelling, as determined by aerial photograph and performance of a "windshield" survey, is approximately 2,400 feet from the site. The closest potable water well is at the dwelling located approximately 2,400 feet from the site. There are no existing or approved shallow wells within 500 feet of the proposed waste disposal areas at the landfill. Accordingly, the proposed landfill satisfies the condition in Section 17-701.040(2)(c), FAC, that solid waste not be disposed of within 500 feet of an existing or approved shallow water well. The surficial aquifer is located approximately 30 feet from the ground surface at the landfill site. The sediments in the area in which waste is to be disposed of consists of layers of clay and sandy clay having a very low vertical conductivity. The waste disposal cells will not be excavated down to the surficial aquifer. Therefore, waste will not be disposed of in ground water. Waste will not be disposed of in a sinkhole or in a limestone or gravel pit, as prohibited by Sections 17-701.030(2)(a) and 17-701.040(2)(b), FAC. The 100-year flood zone is located at approximately 120 feet national geodetic vertical datum (NGVD). The proposed landfill will be located at approximately 125 feet NGVD elevation and within a perimeter berm system. Therefore, waste will not be disposed of in an area subject to periodic and frequent flooding, as prohibited by Section 17-701.040(2)(e), FAC. The waste disposal areas are over 200 feet from Long Round Bay, the closest water body. Therefore, the 200-foot setback requirement is met. See, Section 17-701.040(2)(g), FAC. To Shoo Fly Bridge Road, on which the landfill is located, is not a major thoroughfare. There are no other major thoroughfares in the vicinity from which the landfill is visible. Accordingly, waste will not be disposed of in an area open to public view from a major thoroughfare. See, Section 17- 701.040(2)(h), FAC. The landfill site is not located on the right-of-way of a public highway, road or alley, and is not located within the bounds of any airport property. The landfill will not be located within a prohibited distance from airports, as proscribed by Section 17-701.040(2)(k), FAC. See also, Sections 17-701.040(2)(j) and (2)(i), FAC. There are no Class I surface waters within 3,000 feet of the landfill site so the setback provisions in Section 17-701.040(7), FAC, are satisfied. No lead-acid batteries, used oil, yard trash, white goods, or whole waste tires will be accepted at the Class I landfill cell. Only trash and yard trash will be accepted at the Class III cell. Therefore, the prohibitions in Section 17- 701.040(8), FAC, are not violated. A ground water monitoring plan has been developed for the landfill site, pursuant to Section 17-28.700(6), FAC, as required by Section 17- 701.050(3)(a), FAC. The original ground water monitoring plan was prepared by Post, Buckley, Schuh, and Jernigan, Inc. and submitted as part of the initial permit application. This plan addresses monitoring well placement, monitoring, and monitoring plan requirements. It proposes corrective action, as required by Section 17-28.700(6), FAC. Subsequent modifications to that plan were developed by Dr. Thomas Herbert, an expert in geology, hydrogeology, well installation and water quality monitoring. These modifications particularly address monitoring well location and provide additional assurances that the ground water monitoring plan complies with Section 17-28.700(6), FAC. These proposed modifications were submitted to DER prior to hearing. A site foundation analysis using appropriate ASTM methods to determine stability for disposal of waste, cover material, and structures constructed on site was performed and the results were submitted to DER as part of the initial application. Additional foundation stability information and the results of another field investigation regarding sinkhole development potential at the site was submitted to the Department. The field investigations and reports in evidence provide assurance that the disposal site location will provide adequate support for the landfill, as required by Section 17-701.050(3)(b), FAC. The landfill site is easily accessible by collection vehicles and other types of vehicles required to use the site. The site design provides for all weather roadways to be located throughout the site for ready ingress, egress, and movement around the site. The proposed landfill is located to safeguard against water pollution originating from disposal of solid waste. See Section 17-701.050(3)(c)2., FAC. The bottom of the waste disposal cells will be located at least six feet above the top of the surficial aquifer. To ensure that ground water is not polluted by waste disposal, the Class I cell will be lined with a composite liner system comprised of a lower unit consisting of 24 inches of compacted clay having a maximum permeability of 1 X 10-7 centimeters per second, and an upper synthetic liner unit consisting of a high density polyethylene (HDPE) of 80 mil thickness. Leachate generated by the waste in the landfill will be collected by a leachate collection and removal system. The leachate control system consists of a two- foot thick layer of sand having a minimum permeability of 1 X 10-3 centimeters per second, with a permeable geotextile filter cloth layer and a highly permeable geonet layer to collect and direct the leachate into a drainage system consisting of a collection pipe system to transfer the leachate to a containment lagoon. Once in the leachate lagoon, the leachate will be evaporated, recirculated over the working face of the landfill, or transported off site for treatment at a waste water treatment plant. The waste disposal areas are located at approximately 125 foot NGVD elevation. This is well above the 100- year flood plain and they are not located in water bodies or wetlands. An adequate quantity of acceptable earth cover is available on site. See, Section 17-701.050(3)(c)3., FAC. The soil for cover will be obtained from the northeast portion of the site located across To Shoo Fly Bridge Road from the landfill site. The landfill site was shown to conform to proper zoning, as required by Section 17-701.050(3)(c)4., FAC. The 1991 Comprehensive Plan Future Land Use Element for Holmes County designates this site for "public/semi- public/educational" land uses. The "public facilities land uses" designation includes "utilities and other service facilities" of which municipal solid waste landfills are an example. No other land use designation in the Holmes County 1991 Comprehensive Plan expressly includes landfill uses. CVA adduced testimony from Hilton Meadows, its expert witness, as to plant species he observed in the vicinity of the site. He observed plants that he identified as being species that grow on the edge of or in wetlands, but none of these species were shown to exist on the landfill site itself. Mr. Meadows observed them in locations outside the perimeter berms of the landfill site but did not identify their specific locations other than a general direction from the perimeter berms outside of which he observed the plants. He did not quantify the wetland species he observed so as to establish their dominance and did not conduct a jurisdictional wetland survey, as envisioned by Chapter 17- 301, FAC. Landfill Design Requirements As required by Section 17-701.050(4)(a), FAC, an aerial photograph was submitted with the permit drawings. Plot plans were submitted with the permit application, in evidence as EPAI exhibit 1, showing dimensions of the site, location of soil borings, proposed trenching or disposal areas, original elevations, proposed final contours, and previously-filled waste disposal areas. Topographic maps were also submitted with the correct scale and contour intervals required by Section 17-701.050(4)(c), FAC, which show numerous details such as proposed fill areas, borrow areas, access roads, grading, and other details of the design and the site. The design plans also include a report on the current and projected population for the area, the geographic area to be served by the landfill, the anticipated type, quantity and source of the solid waste, the anticipated useful life of the site, and the source and characteristics of cover materials. The landfill will be a regional facility serving the residents of Holmes and surrounding counties. The current population of the area to be served is approximately 63,183 with the projected population for the year 2000 being 76,792. The landfill will receive municipal sanitary solid waste, asbestos, petroleum-contaminated soils, and yard trash. It will not receive used oil, lead-acid batteries, biomedical wastes, hazardous wastes, or septic sludge. The permit application was shown to satisfy all design requirements of Section 17-701.050(4), FAC. Geology, Hydrogeology, and Foundation Stability Dr. Thomas Herbert, a registered professional geologist and licensed well driller in Florida testified of geologic and hydrogeologic investigations and analyses he performed. Mr. Herbert has over 25 years experience in the fields of geology and hydrogeology and was tendered and accepted as an expert in those fields. Dr. Herbert drilled shallow and deep core borings, which were converted into monitor wells to monitor ground water in the surficial and deep aquifers under the landfill site. In addition, he drilled several medium-depth borings along the western boundary of the site to analyze geologic and hydrogeologic conditions in this area, which is the portion of the site closest to Long Round Bay. Dr. Herbert used a hollow stem auger to take the soil borings and install the monitoring wells. This is a device which allows sampling tools to be placed down a hollow drill barrel for more accurate sediment sampling. Dr. Herbert used a continuous sampling system wherein a five-foot core barrel sampled the soil conditions ahead of the turning drill auger. Continuous sampling is preferable to other types of soil sampling equipment because it provides a detailed representative sample of the soil on the site and enables the sampler to precisely determine whether soil materials occur in small thin layers or bands on the site or whether there is a massive deposit of relatively uniform soils. The continuous sampling method also minimizes mixing of soils and creates an undisturbed profile that can be examined once the core barrel is opened. This type of sampling yields a very accurate picture of soil conditions on the site. In addition to the borings taken on the site by Dr. Herbert, other core borings were taken on site by Ardaman & Associates, a geotechnical engineering firm, for the purpose of analyzing the site foundation to determine the site's stability and potential for developing sinkholes. These core boring profiles were analyzed, along with those performed by Dr. Herbert, in determining the site geologic and hydrogeologic conditions. In addition to the core borings, Dr. Herbert reviewed studies on the geology and hydrogeology of the area, as well as the field investigations reported by Post, Buckley, Schuh, and Jernigan, as part of the original permit application submittal. In order to gather additional information on the geology and hydrogeology of the site, gamma ray logging was performed on the wells installed by Dr. Herbert, as well as on the existing wells at the site. Gamma ray logging measures natural gamma radiation from the sediments and permits identification of soil type based on the amount of gamma radiation coming through the soils. Generally, the higher the clay content, the higher the gamma ray count. Gamma ray logging provides an accurate means for determining clay, sand, or sandy clay soils. By examining gamma ray logs of wells he installed and sampled, as well as for wells already existing on the site, Dr. Herbert was able to obtain extensive information about the subsurface soil conditions at the site. Based on these information sources, the geology of the site was determined. The sediments ranging from the surface of the site down to more than 100 feet below the surface are part of the citronelle formation, which consists of consolidated to partially cemented sand, silt, and clay sediments, called clastics, deposited in the Plio-Pleistocene age, between one and four million years ago. The citronelle formation at the site is predominantly clay, with some thin sand lenses running through the clays. The sand lenses or "stringers" grade laterally into the clays or silts. A surficial aquifer is located between 30 and 40 feet below the land surface at the site and is confined immediately above and below by dense, dry clay layers. The top confining unit is estimated to be approximately 10 feet thick. The lower clay confining unit, down to approximately 100 feet below the land surface, consists of dense, dry clays with thin units of sandy or silty clays or clayey sands. Below the citronelle foundation, at approximately 100 feet below land surface, there is a sequence of weathered carbonate rock or mud, termed "residuum". This material is too fine-grained to yield water in usable quantities. Competent limestone is first encountered below the carbonate "residuum" at approximately 262 feet below the surface. This limestone is likely part of the lisbon- tallahatta formation, which is part of the Claiborne Aquifer. In order to investigate an area in the western portion of the site depicted in the Post, Buckley report as being sandy, Dr. Herbert installed a deep core boring and analyzed the soils in that area. He thus determined that rather than being solid sand, as depicted in the Post, Buckley report, the sediments in this area are actually sands interbedded with clay and silt stringers, which decrease the sediments' horizontal and vertical conductivity. He determined that the area is a sandy channel bounded laterally and below by dense clays. As with the rest of the site, the surficial aquifer also is confined in this area. As part of his ground water monitoring plan recommendations, Dr. Herbert recommended installation of an additional monitor well in this area. The core borings and gamma ray logging allowed accurate determination of the site hydrogeology. Transient surface water, termed "vadose" water, percolates down from the land surface through layers of clay, sand, and silt. Within these sediment layers, there are lenses of clay ranging from a few inches to a foot thick. Vadose water is trapped on top of the clay layers, creating shallow saturated zones called "perched" zones, ranging from one to a few inches thick. The vadose water and perched zones are not connected to any ground water systems. Below these perched zones, dense, dry clay layers create a confining layer above the surficial aquifer. The surficial aquifer occurs in discontinuous sandy layers 30 to 40 feet below the land surface. Beneath the surficial aquifer, dense, dry clay layers form a lower confining unit. These confining clay layers overlying and underlying the surficial aquifer create pressure or hydraulic "head", on the water in the surficial aquifer. When a core boring or well penetrates through the upper clay confining layer, the water in the surficial aquifer rises up the well or core casing, due to the hydraulic head, to a level called the potentiometric surface, which is at a higher elevation than the elevation at which the surficial acquifer is actually located. Based on the confined nature of the surficial aquifer, it was determined that water table elevations reported in the hydrogeologic report initially submitted as part of the application are actually potentiometric surface elevations. This is consistent with the information provided in the additional information submittal as part of the permit application which indicates that the potentiometric surface at the landfill site may be five to seven feet below the bottom of the liner. This was confirmed at hearing by Mike Markey, a professional geologist with the Department, who reviewed the permit application and hydrogeologic report submitted by Dr. Herbert and prepared a memorandum dated September 2, 1992, stating that his "previous concern regarding separation of the 'water table' aquifer and HDPE liner is no longer an issue because the 'water table' aquifer was not found" by Dr. Herbert. The surficial aquifer on the landfill site cannot yield enough water to support long-term use as a potable water source. Due to the high clay content in the aquifer, the water has a high sediment content and low water quality, rendering it unusable for domestic purposes. The overall horizontal conductivity for the surficial aquifer on a site-wide basis is estimated to be low due to the discontinuous sand layers comprising the surficial aquifer on the site. While some zones within the aquifer may have high horizontal conductivity, these zones have limited lateral extent and change rapidly into zones of low horizontal conductivity. The steep hydraulic gradient from the highest to lowest areas of the site further indicates that the surficial aquifer has low horizontal conductivity. If water were rapidly moving through the surficial aquifer across the site, the hydraulic gradient would be much less steep. The presence of the hydraulic gradient across the site indicates that the clay in the surficial aquifer system is so pervasive that the water in that system essentially is stagnant. Based upon his extensive experience and familiarity with the clastic sediments like those found at the landfill site, Dr. Herbert estimated the vertical permeability of the sediments comprising the upper and lower confining layers of the surficial aquifer to be in the range of 1 X 10-6 to 1 X 10-8 centimeters per second. These projected permeability values are very low, thus, very little water is moving vertically through the surficial aquifer to deeper depths. The original hydrogeology report on the site submitted as part of the application indicated that the ground water flow is to the west, southwest, and northwest based upon monitoring well and piezometric data. Dr. Herbert's subsequent field investigations confirmed the ground water flow direction as reported in the permit application. Dr. Herbert estimated that the surficial aquifer will be located between 8 and 15 feet below the finished bottom elevation of the Class I waste disposal cell. The intermediate aquifer system is located beginning 80 or 90 feet below the landfill site and is defined as all strata that lie between and retard the exchange of water between the surficial aquifer and the underlying Floridan aquifer, including the lower clay confining unit directly underlying the surficial aquifer. In this part of west Florida, the intermediate system is estimated to be 50 to 60 feet thick and acts as an "aquatard", which means that it retards the passage of water from the surficial aquifer to lower levels. The standard penetration test (SPT), which is an engineering test of soil density, yielded values of 40 to 50 blows per inch for soils sampled in the top 20 feet of the intermediate system throughout the site. These SPT values indicate the soils in the intermediate system are extremely dense, over-compacted clay materials. Below the clays, the lower portion of the intermediate system consists of a weathered limestone residuum. Due to the extremely fine grain size of the residuum, it will not yield water in quantities sufficient to support a well. The deep core borings taken at the site indicate that the Floridan aquifer limestone underlying the landfill site has undergone paleokarst evolution. The underlying limestone has been dissolved away over a long period of time, creating the limestone residuum detected in the deep core borings. Based on the deep core borings taken at the site, Dr. Herbert concluded there is no competent Floridan aquifer limestone capable of supporting wells underlying the landfill site, and the Floridan aquifer either is not present under the site or exists only as a relict or remnant of the limestone formations that make up the Floridan aquifer system in other parts of Florida. The core borings taken on site indicate that the paleokarst terrain underlying the landfill contains no cavities, large openings, sinkholes or other features in the rock that could cause the landfill foundation to collapse. All karst features in this area are filled in and "healed" by the carbonate residuum overlying the limestone under the landfill. Dr. Herbert also investigated the geologic nature of Long Round Bay. In addition to reviewing literature regarding the geology of west Florida in the vicinity of Holmes County and topographic maps depicting the site, Dr. Herbert took at least one sediment core boring in Long Round Bay and also circumnavigated the perimeter of the Bay. Based on information from these sources, Dr. Herbert opined that Long Round Bay, like many other drainage basins in the area north of Bonifay, is a collapse feature of the paleokarst sequence in the vicinity, and is a topographic depression caused by weathering away of the limestone over time. The sediments underlying Long Round Bay consist of deep citronelle clays washed into the collapse feature. Long Round Bay is relatively flat with poorly defined outlets and receives surface drainage from the surrounding area. Because there are no defined channels connecting Long Round Bay to Wright's Creek, water movement from Long Round Bay into Wright's Creek is extremely slow. Long Round Bay is likely not an aquifer recharge area because there is no direct karst connection between Long Round Bay and any aquifer. Clays have run off the surrounding area and accumulated in Long Round Bay for thousands of years sealing off any connections between it and any underlying aquifer. In addition to Dr. Herbert's determination of the potential for active karst formation under the landfill site, Ardaman & Associates performed the foundation analysis of the site, as required by Section 17-701.050(3)(b), FAC. The foundation analysis was supervised by William Jordan, a registered professional engineer. He has an extensive education in geotechnical engineering, as well as 11 years of experience in that field. He was tendered and accepted as an expert in geotechnical engineering and materials testing. As part of the foundation analysis, Ardaman & Associates performed two deep core borings to determine the potential for development of sinkholes at the site. Both borings were taken on the western side of the landfill site, closest to Long Round Bay. One of the borings was performed in an area having a relatively high sand content in the soil, as identified in the hydrogeology report submitted in the permit application. The borings were drilled down to approximately 160 feet below the surface, to the top of the weathered limestone horizon. In Mr. Jordan's extensive experience in foundation testing and analysis, presence or potential for sinkhole development is usually evident at the horizon of the limestone or within the top 15 feet of the limestone. The core borings did not reveal any joints, open seams, cavities, or very loose or soft zones at the horizon or on top of the limestone. In addition, the sediments overlying the limestone horizon were determined to consist of medium dense to dense and medium stiff to stiff sediments, which indicate lack of sinkhole activity or potential. No indication of active or imminent sinkhole conditions were found on the site, either through the core borings or from surficial observation. In addition to the deep core borings, Ardaman & Associates, under Mr. Jordan's supervision, also performed four other core borings to a depth of 60 feet below the land surface. These borings indicated the sediments at the site are composed of clayey sands, very clayey sands, "lean" sandy clays, and sandy "fat" clays. The SPT tests performed on the soils indicate the site soils range from medium to high density and are stiff to very stiff and hard. Mr. Jordan performed a settlement analysis of the landfill based on the types of sediments present on site and assuming a compacted unit weight of 37 pounds per cubic foot for the landfill waste. This unit weight is a typical weight value for compacted municipal waste. For settlement analysis, Mr. Jordan used the SMRF elastic compression and consolidation methods, both of which are professionally accepted standard methods for determining settlement of large structures, including landfills. Using these methods, he determined that the total settlement for the landfill over its total life would be between three and five and one-half inches. Based on the uniformity of the subsurface conditions and density of the soils on the site, any settlement would be uniform and thus would not result in tearing or other failure of the landfill liner. Mr. Jordan performed a bearing capacity analysis of the site. Based on the sediments on site, he estimated the safety factor against bearing capacity to be in excess of 10. The minimum acceptable safety factor for large habitable structures, such as buildings, is in the neighborhood of two to three. Thus, the safety factor determined for the landfill site far exceeds the minimum standard for bearing capacity. Mr. Jordan performed an embankment slope stability analysis for the perimeter berm of the landfill. The inside slope of the perimeter berm has a 3:1 slope and the outside slope has a 4:1 slope. Mr. Jordan's stability analysis was performed on the inside slope of the berm which is steeper and, therefore, less stable. Due to the stability of the clay sediments composing the subgrade of the perimeter berm, and based on his extensive experience in slope stability analysis, Mr. Jordan determined there is no danger of deep circular arc failure of the landfill berm. He used a professionally accepted standard slope stability evaluation method called the "infinite slope" method, to analyze the probability for shallow circular arc failure of the berm. He determined a safety factor of 2.0 to 2.4 for the embankment slope, which is between 1.5 and 2.0 times greater than the minimum accepted safety factor of between 1.3 and 1.5 for embankment slopes. Mr. Jordan also performed an analysis of the site subgrade stability for compaction. Mr. Jordan's analysis showed that the stiff or medium dense silty to clayey sands and clays on the site provide a stable base against which compaction over the life of the landfill can safely occur. Based on the foundation analysis performed by Mr. Jordan on the landfill site, it is evident that the landfill will not be located in an open sinkhole or in an area where geologic foundations or subterranean features will not provide adequate support for the landfill. (See Section 17-701.040(2)(a), FAC). The foundation analysis indicates the landfill will be installed upon a base or in a hydrogeologic setting capable of providing support to the liner and resistance to pressure gradients above and below the liner to prevent failure of the liner due to settlement compression, as required by Section 17- 701.050(5)(b)2., FAC. The foundation analysis further indicates the site will provide support for the landfill, including the waste, cover and structures built on the site (See Section 17-701.050(3)(b), FAC). Section 17-701.050(5)(d)1.a, FAC, requires the lower component of the landfill liner to consist of a compacted soil layer having a maximum hydraulic conductivity of 1 X 10-7 centimeters per second. Mr. Jordan analyzed nine additional core borings to determine if the native soils on the site meet the conductivity standard in the rule or if off-site soils must be blended with on- site soils to achieve the standard. To test whether the on-site soil will meet the conductivity standard, soils were compacted to approximately 95% of the standard maximum for density, which is the industry standard compaction for soil permeability testing. The soils from eight of the nine borings taken at the site exhibited conductivity values of approximately 4.8 X 10-8 centimeters per second. This value is five times less conductive than the value required by the above-cited rule. Only one boring exhibited a conductivity value in excess of the maximum value established in the rule. Based on the conductivity values determined at the site, it is likely the native soils on the landfill site will meet or exceed the maximum conductivity value mandated in the above-cited rule. If the on-site soils do not meet this standard, then bentonite or another material from off site will be blended with the on-site soils to achieve the conductivity standard mandated by the rule. Ground Water Monitoring and Water Quality As required by Section 17-701.050(3)(a), FAC, a ground water monitoring plan for the landfill site was completed in accordance with Section 17-28.700(6), FAC. The original ground water monitoring plan was submitted as part of the application. This plan was incorporated into the notice of intent and the attached draft permit for the landfill, as part of specific condition The ground water monitoring plan subsequently was modified and supplemented by Dr. Herbert to include monitor wells required to be installed by Holmes County on the site, pursuant to the consent order entered into by the county and DER on June 26, 1989, as well as the wells installed by Dr. Herbert as part of his hydrogeologic investigation. DER established a zone of discharge for the landfill site, as required by Rule 17-28.700(4), FAC. The horizontal boundary of the zone of discharge extends to the ground water monitoring compliance wells located at the western, northern, and southern portions of the site and to a line coextensive with the eastern property line for the southeastern portion of the property. The horizontal zone of discharge boundary is located inside the western, northern, and southern property boundaries. The vertical zone of discharge extends from the land surface down to the top of the clay layer underlying the site at approximately +50 to +60 feet NGVD. These zones are established in compliance with Section 17-28.700(4), FAC. The groundwater monitoring plan provides for 15 monitor wells to be located in close proximity to the waste disposal areas and the site boundaries to monitor compliance with all applicable ground water quality standards in Sections 17-3.402, 17-3.404, and 17-550.310, FAC. Four of these wells will be located near the western property boundary to closely monitor water quality to insure contaminants do not seep into Long Round Bay. To detect contamination that may violate applicable surface water quality standards in Sections 17-302.500, 17-302.510, and 17-302.560, FAC, at the edge of and beyond the zone of discharge, the ground water monitoring plan provides for several surface water sampling points on the landfill site near the edge of the zone of discharge. If contaminants are detected in the surface water monitoring system, remediation activities can be implemented to insure the surface water quality standards set forth in the above-cited rules are not violated outside the zone of discharge. As required by Section 17-28.700(6)(g)1., FAC, the ground water monitoring plan provides for a well to be located to detect natural, unaffected background quality of the ground water. The monitoring plan also provides for a well to be installed at the edge of the zone of discharge downgradient from the discharge site, as required by Section 17-28.700(6)(g)2., FAC, and for installation of two intermediate wells downgradient from the site within the zone of discharge to detect chemical, physical, and microbial characteristics of the discharge plume, in excess of the requirement for one such well contained in Section 17-701.050(6)(g)3., FAC. The location of the other wells in the ground water monitoring plan was determined according to the hydrogeologic complexity of the site to insure adequate reliable monitoring data in generally accepted engineering or hydrogeologic practice, as required by Section 17-28.700(6)(g)4., FAC. Due to the essentially stagnant nature of the ground water in the surficial aquifer system, and given the location of the intermediate monitoring wells, any contamination detected at the site can be remediated through recovery wells before it reaches the edge of the zone of discharge. Moreover, due to the confined nature of the surficial aquifer system, there is very little free water in the aquifer. Accordingly, any contamination could be quickly removed by recovery of ground water and de-watering of the area in which the contamination is detected through remediation wells. Also, given the location of the monitoring wells on the site, the northerly direction of the surficial aquifer ground water flow on the northern portion of the site near the existing landfill, and the essentially stagnant nature of the ground water in the surficial aquifer, contamination emanating from the existing cell could be discerned from that emanating from the new cell and recovery and remediation operations directed accordingly. The DER intent to issue and draft permit specify an extensive list of parameters which must be sampled at the ground water monitoring wells and surface water sampling points on the landfill site, as required by Sections 17- 3.402, 17-302.510, 17-302.560, and 17-550.310, FAC. These parameters must be sampled and reported to DER on a quarterly basis. In addition, annual water quality reports must be submitted to DER for the site. Based on the large amounts of clay content and the low horizontal and vertical conductivity values of the on-site sediments, the stagnant nature of the surficial aquifer system, the virtual absence of the Floridan aquifer under the site, and the location of the monitoring wells, the ground and surface water monitoring program provides reasonable assurance that the applicable water quality standards in the rules cited above will not be violated within and outside the zone of discharge. Liner Design, Performance, Quality Control, and Installation Section 17-701.050(5)(d)1., FAC, requires that a composite liner and leachate collection and removal system be installed in a landfill such as that proposed. Mr. Leo Overmann, is a registered professional engineer specializing in landfill engineering. He has over 10 years experience in landfill engineering, design, and construction and has worked on the design and construction of over 50 landfill facilities and 250 landfill disposal cells. He was tendered and accepted as an expert in liner design, quality control plans, and leachate control systems design and performance. It is thus established that the composite liner will have an initial 24-inch layer of compacted clay having a maximum hydraulic conductivity of 1 X 10-7 cm/sec. The 24-inch clay layer proposed by the applicant exceeds the 18- inch minimum thickness provided in the above-cited rule and will be placed in the field in layers or lifts of six inches or less. Each lift will then be treated and compacted to proper specifications in accordance with sound engineering practice in order to insure a tight bond between the clay layers. In the process of placing the clay lifts on the site, any roots, holes, channels, lenses, cracks, pipes, or organic matter in the clay will be broken up and removed, as required by the above-cited rule. In order to insure conductivity of the clay liner component does not exceed the above figure, testing will be done at the site or off-site by constructing a "test pad". A test pad is a site at which the liner construction techniques are tested using the clay material that will comprise the lower liner unit. Once the pad is constructed, the hydraulic conductivity of the clay can be tested to determine the most suitable construction methods in order to meet the above-mentioned conductivity standard and the other design and performance standards in the rule section cited last above. The applicant's liner quality control plan provides for testing of the clay liner hydraulic conductivity and compliance with the other liner design and performance standards in the rule (See Section 17- 701.050(5)(c), FAC). A synthetic geomembrane liner consisting of high density polyethylene (HDPE) will be placed directly on top of and in contact with the clay liner. If the geomembrane should leak, the clay will then retard leachate migration. Although Rule 17-701.050(5)(d)1.a., FAC, only requires a 60-mil thickness liner, the applicant has proposed to use a 80-mil liner. The thicker HDPE liner is less susceptible to stress and wear and tear in the daily landfill operation than is the thinner 60-mil liner required by the rule. The water vapor transmission rate of the 80-mil liner will be approximately 1 X 10-12 cm/sec, which is 10 times less transmissive than the maximum water vapor transmission standard of 1 X 10-11 cm/sec established in Rule 17-701.050(5)(d)1.a., FAC. The design also provides for a drainage layer and primary leachate collection and removal system to be installed above the HDPE liner, as required by the above-cited rule. The drainage layer above the liner consists in ascending order, of a layer of geonet material having an equivalent permeability of approximately three cm/sec; a layer of non-woven, needle-punched geotextile cloth, and a two-foot thick layer of sand. The sand provides a permeable layer which allows liquid to pass through it while protecting the underlying synthetic components of the drainage system and liner. The geotextile cloth component of the drainage layer filters fine particles while allowing liquid to pass through it to the geonet layer. The geonet layer is approximately 3,000 times more conductive than required by Section 17-701.050(5)(f), FAC, so as to allow rapid drainage of leachate off of the HDPE liner. The drainage layer is designed to reduce the leachate head or hydraulic pressure on the liner to one inch within one week following a 25-year, 24-hour storm event. This was determined by use of the Hydrologic Evaluation of Landfill Performance (HELP) model. This model is the standard computer model used in the landfill design and construction industry to determine leachate depth over the synthetic liner in lined landfills. The HELP model calculations submitted in the permit application were prepared by Pearce Barrett, the EPAI landfill design engineer, an expert witness. The HELP model analyzes water and rainfall that falls on active waste disposal cells and percolates through the waste, and the model helps determine the amount of leachate that will accumulate on top of the liner. To determine this amount, the HELP model uses several parameters, including rainfall amount, landfill size, and the number of waste and protective cover layers. The HELP model in this instance involved employment of Tallahassee-collected rainfall data because long-term, site-specific data for the landfill site was not available. The Tallahassee rainfall average is greater than the rainfall average for Chipley, which is closer to the landfill site and, therefore, provides a more conservative, "worst-case" rainfall figure for employment in the HELP model calculations. The HELP is itself a very conservative model, generating a worst-case determination of the amount of leachate that will end up on top of the landfill liner. The model's analysis and calculations indicate that the leachate will be reduced to a one-inch depth on the liner within one week after a 25-year, 24-hour storm event. The landfill project design specifications, in the permit application, provide that all materials in direct contact with the liner shall be free of rocks, roots, sharps, or particles larger than 3/8 of an inch. The geonet and geotextile material are in direct contact with the top of the HDPE liner and the clay liner is located directly below the HDPE liner. The project design specifically provides that the clay material comprising the clay liner component will not contain roots, rocks, or other particles in excess of 3/8 of an inch. No waste materials thus will come into contact with the clay liner. The design specifications also provide additional protection for the liner by requiring that the initial waste placed in the landfill be select waste that is monitored and screened for such things as metal objects, wooden posts, automobile frames and parts, and other sharp, heavy objects which could tear the liner. The liner design contained in the application meets the design requirements of Rule 17-701.050(5)(d), FAC. Section 17-701.050(5)(b), FAC, requires that the liner be constructed of materials having appropriate chemical properties and sufficient strength and thickness to prevent failure due to pressure gradients, physical contact with the waste or leachate to which they are exposed, climatic conditions, stress of installation, and daily operations. The liner is constructed of HDPE, which is superior to other types of plastic for use as municipal and hazardous waste landfill liners due to its physical and chemical properties. It is a material composed of long polymeric chain molecules, which are highly resistant to physical failure and to chemical weakening or alteration. The liner is of sufficient strength and thickness to resist punctures, tearing, and bursting. The liner has a safety factor of over seven, which is three and one-half times greater than the minimum acceptable safety factor of two, required in the Department's rules for landfill liners. The liner proposed in this instance will not fail due to pressure gradients, including static head or external hydrogeologic forces. Mr. Overmann evaluated the effects of a hydrologic head of one foot over the HDPE liner and the clay liner component and determined that the protective sand layer will insure the HDPE liner does not fail. Mr. Overmann relied on the testimony of Dr. Herbert with respect to hydrogeologic site characteristics in concluding that hydrogeologic forces will not cause liner failure. The 80-mil liner proposed by EPAI will be more resistant to the stresses of installation and daily operation than will a 60-mil liner. The two-foot sand layer above the drainage layer and the HDPE liner will also help protect the liner from stresses of daily operation. Mr. Overmann analyzed the liner's potential for failure between the point at which it is anchored on the edge of the landfill and the base of the landfill where settlement is greatest due to waste deposition. He determined that the HDPE liner would elongate on the order of one percent of its length. This is far less than 700 to 800 percent elongation required to break the liner material. Based on the site foundation analysis and the proposed liner design for the landfill, the liner will not fail due to hydrogeologic or foundation conditions at the site. The liner meets the performance requirements set forth in Rule 17-701.050(5)(b)2., FAC. The liner meets requirements that it cover all of the earth likely to be in contact with waste or leachate. The liner extends beyond the limits of the waste disposal cells to an anchor trench where the HDPE liner is anchored by soils and other materials to hold it in place during installation and operation. The liner design provides reasonable assurance that the liner performance standards contained in the above rule will be satisfied. There are no site- specific conditions at the Holmes County landfill site that would require extraordinary design measures beyond those specified in the rule cited above. The permit application includes a quality control and assurance plan for the soil and HDPE liner components and for the sand, geotextile, and geonet components of the drainage layer. A quality control plan is one in which the manufacturer or contractor monitors the quality of the product or services; a quality assurance plan is one in which an independent third party monitors the construction methods, procedures, processes, and results to insure they meet project specifications. The quality control/quality assurance plan requires the subgrade below the clay liner to be prepared to insure that it provides a dry, level, firm base on which to place the clay liner. The plan provides that low- permeability clay comprising the liner will be placed in lifts of specified thickness and kneaded with a sheepsfoot roller or other equipment. Low- permeability soil panels will be placed adjacent to the clay liner and scarified and overlapped at the end to achieve a tight bond. Each clay lift will be compacted and tested to insure it meets the specified density requirements and moisture specifications before a subsequent lift is placed. Lined surfaces will be graded and rolled to provide a smooth surface. The surface of the final low- permeability soil layer will be free of rocks, stones, sticks, sharp objects, debris, and other harmful materials. If any cracks should develop in the clay liner, the contractor must re-homogenize, knead, and recompact the liner to the depth of the deepest crack. The liner will be protected from the elements by a temporary protective cover used over areas of the clay liner exposed for more than 24 hours. The plan also provides specifications for visual inspection of the liner, measurement of in-place dry density of the soil, and measurement of hydraulic conductivity on undisturbed samples of the completed liner. These tests will be performed under the supervision of the professional engineer in charge of liner installation to insure that performance standards are met. There will be a quality control plan for installation of the HDPE liner in accordance with the DER approved quality control plan that incorporates the manufacturer's specifications and recommendations. The quality assurance and quality control plan calls for the use of numbered or identified rolls of the HDPE liner. The numbering system allows for identification of the manufacturing date and machine location, so that the liner quality can be traced to insure that there are no manufacturing anomalies, such as improper manufactured thickness of the liner. The plan also addresses in detail the installation of the HDPE liner. The liner is installed by unrolling it off spools in sections over the clay liner. As it is unrolled, it is tested for thickness with a micrometer and is visually inspected for flaws or potential flaws along the length of the roll. Flaws detected are marked, coded, and repaired. Records are prepared documenting each flaw. If flaws appear frequently, the HDPE is rejected and removed from the site. As the sheets are installed, they are overlapped and bonded together by heat fusing to create a watertight seam. As the sheets are seamed, they are tested in place by nondestructive testing methods to insure seam continuity and detect any leaks or flaws. If flaws are detected, they are documented and the seam is repaired. The seams are also subject to destructive testing, in which a sample of the seam is removed in the field and tested in the laboratory for shearing or peeling apart of the sheets. If destructive testing reveals seam flaws, additional field and laboratory testing is performed and necessary repairs are made. All tests, repairs, and retests are carefully documented, and a map depicting the location of all repairs is prepared for quality control and performance monitoring. The plan for the installation of the geonet, geotextile, and sand layers provides specifications for storage, installation, inspection, testing, and repair of the geonet and geotextile layers. The liner construction and installation will be in conformance with the methods and procedures contained in EPA publication EPA/600/2-88/052, Lining of Waste Containment and Other Impoundment Facilities, as required by Section 17-701.050(5)(a), FAC. The quality assurance and quality control plan proposed exceeds the requirements contained in Section 17-701.050(5)(c), FAC. Leachate Collection and Removal System The landfill design includes a leachate collection and removal system. See Section 17-701.050(5)(e)&(f), FAC. The leachate collection and removal system meets the requirements in the above rule by providing that the design incorporate at least a 12-inch drainage layer above the liner with a hydraulic conductivity of not less than 1 X 10-3 cm/sec at a slope to promote drainage. The drainage layer consists of a geonet layer, a geotextile layer, and a two- foot sand layer. The geonet has a hydraulic conductivity of two to three cm/sec, many times more permeable than required by the rule; and the sand layer will have a hydraulic conductivity of approximately 1 X 10-3 cm/sec. The leachate collection and removal system meets regulatory requirements contained in the above-cited rule that the design include a drainage tile or pipe collection system of appropriate size and spacing, with sumps and pumps or other means to efficiently remove the leachate. The design provides that the Class I cell will be divided into operating disposal cells. The design includes a piping system consisting of a 6-inch diameter pipe to be placed down the center of each of the operating cells and encased in a granular river rock medium. The HELP model calculations included in the permit application and evidence indicate that the leachate will be removed efficiently and effectively and that the leachate head will be maintained in compliance with the performance standards in the rule. The piping system is on a slope that drains to a central location or sump. Based on a design preference of City, the piping design will be slightly modified in the construction drawings to provide that rather than going through the HDPE liner, the leachate piping will run up the side of the cell wall and leachate will be pumped out of the cell into the leachate lagoon. The leachate collection and removal system design provides for a granular material or synthetic fabric filter overlying or surrounding the leachate collection and removal system to prevent clogging of the system by infiltration of fine sediments from the waste or drainage layer. A layer of non-woven, needle-punched geotextile will be wrapped around the granular river rock material surrounding the piping system to filter out fine particles. The design also provides a method for testing whether the system is clogged and for cleaning the system if it becomes clogged. A clean-out tool can be run through the openings in the leachate collection piping system to monitor and pressure clean the pipes if they become clogged. Thus, the leachate collection and removal system will satisfy the leachate system design requirements of Section 17-701.050(5)(f), FAC. The leachate collection and removal system will meet the performance standards in paragraph (e) of that rule, as well. The leachate collection and removal system will be located immediately above the liner and will be designed, constructed, operated, and maintained to collect and remove leachate from the landfill. The HELP model analysis and calculations indicate that the leachate depth will not exceed one foot on top of the liner. The leachate collection and removal system will be constructed of materials which are chemically resistant to the waste disposed of in the landfill and leachate expected to be generated. The geonet will be comprised of HDPE, which is chemically resistant to waste and leachate due to its molecular structure. The collection piping system also will be composed of HDPE. The geotextile layer will be composed of a non-woven polyester or polypropylene fabric, which has been determined to be resistant to and compatible with municipal solid waste leachates. The sand layer will consist of non-carbonate materials that are chemically resistant to or compatible with leachate. The evidence shows that the system will be of sufficient strength and thickness to prevent collapse under the pressures exerted by overlying waste, cover materials, and equipment used at the landfill. Geonet drainage layers, HDPE piping, geotextile fabric, and sand layers such as those proposed are routinely and effectively used in landfills, including those that are deeper than the landfill proposed in the instant situation. The leachate collection and removal system meets requirements in paragraph (e) of the above rule, as well, that the system be designed and operated to function without clogging through the active life and closure period of the landfill. The geonet and geotextile layers will prevent the piping system from clogging. If clogging occurs, the system is designed to allow cleaning of the pipes. The collection and removal system will be designed and constructed to provide for removal of the leachate within the drainage system to a central collection point for treatment and disposal. The leachate will drain by gravity from the sump into the leachate lagoon, but will be altered during construction to provide for pumping of leachate out of the system into the lagoon in order to prevent having to penetrate the HDPE liner with piping. Once the leachate is pumped into the lagoon, it will be recirculated over the landfill face, evaporated from the lagoon, or removed off site for treatment and disposal at a waste disposal and treatment plant. Surface Water and Storm Water Management System The storm water management system for the landfill is designed and sized according to local drainage patterns, soil permeability, annual precipitation calculations, area land use, and other characteristics of the surrounding watershed. (See Rule 17-701.050(5)(h), FAC). The engineering expert for the applicant, Mr. Barrett, designed the storm water management system. He considered the presence of dense clay soils on the site which do not provide good percolation because of low permeability, with regard to storm water falling on the site. He also took into account existing drainage patterns, as well as the annual precipitation. The retention and detention ponds and drainage ways designed into the system consist of three detention basins located at the north, southeast, and southwest quadrants of the site and one retention basin located on the western portion of the site. The site is divided into watersheds and is drained by an on-site gravity system consisting of runoff collection pipes to intercept the overland flow and convey the runoff into the retention and detention facilities. Runoff from the northern watershed is treated in detention basin 1, that from the southeast watershed in basin 3, and runoff from the southwest watershed area in detention basin 4. Runoff from the western area or watershed is treated in retention basin 2. A computer model was used by Mr. Barrett in determining the appropriate design for the storm water management system. The model is called the hydrologic engineering center-1 model developed by the U.S. Army Corps of Engineers. It is a model routinely and widely accepted in the storm water engineering design profession and discipline for designing such systems. It has historically been accepted by the Florida Department of Transportation, DER, the Corps of Engineers, and a number of counties and municipalities. A number of parameters, such as total runoff area, watershed characteristics, rainfall amount, time of concentration, lag time, and route description, were put into the model to develop the storm water management system design. Because no actual runoff data was available to calibrate the model, the model was run using data for two hypothetical storm events, the 25-year, 24-hour storm and the 10- year, 24-hour storm. Total rainfall amounts for these events were obtained from rainfall intensity duration-frequency curves developed by the Florida Department of Transportation (FDOT) for this geographical area. The detention basins are wet treatment facilities having permanent pools of water. Wetlands vegetation grows on the littoral slopes of the detention basins and removes pollutants from the storm water by natural uptake of pollutants contained in the water through the roots, stems, and leaves of the plants. Based on the HEC-1 model, the detention basins are designed to store one inch of runoff over the permanent pool control elevation and to retain the first one-half inch of rainfall, as required by Section 17-25.040(5), FAC, for projects having drainage areas of less than 100 acres. Each basin has several pipes to allow outflow when the water level exceeds the one-half retention level. As water rises to the outflow pipe level, it flows out of the basin and eventually discharges off site. The outflow pipes are two to three inches in diameter, allowing discharge of a controlled volume of water at a controlled rate. The discharge structures will be constructed in accordance with construction drawings that will include erosion control devices, such as rip- rap. The basins also have vertical riser pipes that discharge if water reaches a higher set elevation, specified in the permit application. Only if the water level rises to an elevation exceeding the 25-year, 24-hour storm elevation would the water flow over the berm. As required by Section 17-25.025(8), FAC, the storm water management system design provides for skimmers to be installed on discharge structures to skim oil, grease, and debris off water discharged from the basins. No more than one-half of the volume will be discharged in the first 60 hours following a storm event. The detention basin slopes that exceed a four to one slope down to a depth of two feet below control elevation will be fenced for safety purposes. See Rule 17-25.025(6), FAC. The retention basin is designed to retain the first one-half inch of rainfall with filtration of the first one-half inch through a sand filter bed in the bottom of the basin within 72 hours following the storm event. The sand filter bed will consist of clean well-graded sand having a minimum horizontal and vertical conductivity or percolation rate of six inches per hour. The retention basin has vertical risers, as provided in the application. Erosion and sediment control "best management practices" will be used during construction to retain sediment on site, as referenced in Rule 17-25.025(7), FAC. Other best management practices, such as sodding embankments or stabilizing slopes with geomats or sand bags will be used. The system is designed to minimize mixing of the storm water with the leachate. (Rule 17-701.050(5)(h)3., FAC). As waste is placed in the landfill, berms are constructed laterally across the cell face to segregate the waste disposal areas from other areas in the cell not yet receiving waste. Storm water coming into contact with waste flows down through it and eventually is collected and removed from that cell by the leachate collection and removal system described above. Storm water falling in a portion of a cell in which waste has not been deposited is collected by piping and pumped to the storm water management system for treatment of storm water because it does not constitute leachate, not having traversed on or through waste. Storm water will not come into contact with the waste within the system as designed. There are not any pipes connecting the waste disposal cells to the storm water system or basins. The storm water system in the permit application was designed in accordance with the criteria enunciated in the above-cited rule. This fact was established by the unrefuted expert testimony of Mr. Barrett and was independently confirmed by three other engineers, including the storm water program engineer of DER, each of whom reviewed the storm water system design. The storm water program engineer inspected the site and determined that the proposed management system will not pose any risk to downstream property, as required by the statute and rules enforced by the Northwest Florida Water Management District (NWFWMD). CVA adduced the testimony of Mr. Hilton Meadows in an effort to demonstrate that the storm water management system design in EPAI's application, and case-in-chief, does not meet applicable criteria in Chapters 17-701 and 17- 25, FAC, referenced above. Mr. Meadows attempted to demonstrate, by calculations determined using the "rational formula", that storm water will be discharged off the landfill site at a rate of 16.11 acre feet per minute during a 25-year, 24-hour storm event. An acre foot of water is a depth of one foot of water covering a surface acre in area. According to Mr. Meadows, all storm water would be thus discharged off site at a single discharge point creating a "blowout" of the storm water management system structure at that point which would flood and erode Long Round Bay off the site. In rebuttal, however, Mr. Barrett explained that Mr. Meadows' calculations merely determined the total amount of water that would fall on the landfill site during a 25-year, 24-hour storm event and failed to consider the time-volume reduction of storm water off the site over a 24-hour time period. Mr. Barrett clearly established that 16.11 acre feet of water would not be discharged per minute off the site during the 25-year, 24-hour storm event. It was further demonstrated that Mr. Meadows did not perform any computer modeling in analyzing site-specific compliance of the proposed storm water management system design against the framework of the applicable design and performance standards in Chapters 17-25 and 17-701, FAC. CVA did not adduce any preponderant evidence which would demonstrate that the storm water management system proposed will not meet the design performance standards contained in the rules and rule chapters referenced above. In view of the more extensive background, education, knowledge, and training acquired both through education and experience; in view of the more extensive and detailed investigation and calculations underlying his design, including the computer modeling effort referenced above; and in view of his corroboration by three other witnesses within the storm water engineering discipline, the opinions of Mr. Barrett, and the witnesses corroborating his testimony, are accepted over that of Mr. Meadows. Gas Control System The gas control system for the landfill will meet the design requirements contained in Rule 17-701.050(5)(j), FAC. It will be a passive system, meaning that no mechanical methods are necessary to withdraw gas from the landfill. A ventilation system will be installed as the final cap is placed on the landfill and will consist of perforated PVC pipes placed vertically down through the soil cover layers, to reach the solid waste disposal areas. The pipes are wrapped in geotextile fabric in order to prevent them from being infiltrated by fine soil particles which could cause clogging of the system. The pipes will run laterally across the top of the waste disposal areas to transfer gas to the vertical vents which vent the gases to the atmosphere. If gas production should exceed the capacity of the passive ventilation system, vegetation will be damaged and odor will become objectionable. If that occurs, a pump can be connected to the system to extract gases mechanically and vent them into the atmosphere or flame them off as a more positive control method. The proposed gas system is typical for landfills of this size and has been well tested for efficiency at other such facilities. The gas control system will not interfere with or cause failure of the liner or the leachate control systems. The gas control system is designed to prevent explosion and fires due to methane accumulation, damage to vegetation on the final cover of the closed portions of the landfill or vegetation beyond the perimeter of the property. It will control any objectionable odors migrating off site. The system, as proposed and proven in this case, meets the design requirements contained in the above-cited rule. Landfill Operation Paul Sgriccia, vice president of City, is a registered professional engineer specializing in landfill design, operation, and management. He has extensive professional experience in (and supervises a 20-person staff) designing landfills, obtaining permitting, and overseeing daily operation, environmental regulation compliance, compliance monitoring, hydrogeology, and groundwater monitoring with regard to landfill projects proposed, being constructed, or operated by City. Additionally, he is trained as an engineer. He was tendered and accepted as an expert in the fields of landfill operations and landfill management. The above-cited rule chapter requires landfills to have a ground water monitoring system that complies with monitor well location, construction, and sampling requirements of Sections 17-3.401, 17-4.26, and 17-28.700, FAC, and ground water sampling and testing in accordance with those sections, as well as Section 17-22, Parts III and IV, FAC. Mr. Sgriccia's testimony shows that the ground water monitoring plan proposed and considered in conjunction with the hydrogeologic investigation and ground water monitoring recommendations made by Dr. Herbert will meet these regulatory requirements. The recommendations made by Dr. Herbert concerning ground water monitoring should be incorporated as conditions on issuance of the permit. The applicant has voluntarily agreed to notify DER one year in advance of its ground water monitoring schedule so that DER can be present to collect "split samples", as referenced in Rule 17- 701.050(6)(a)3., FAC. Any grant of a permit should also be conditioned on this policy being strictly followed. The application also contains an operation plan, as required by the above-cited rule at paragraph (6)(b). The operation plan provides that EPAI will be the entity responsible for the operation and maintenance of the landfill. The plan provides that in the event of a natural disaster or equipment failure that would prevent waste from being deposited at the landfill, the waste will be disposed of at the Springhill landfill in adjacent Jackson County, pursuant to an agreement between EPAI and Waste Management, Inc., the operator of that landfill. The operation plan contains detailed procedures to control the type of waste received at the facility. Hazardous waste, biomedical waste, lead-acid batteries, white goods, used oil, and waste tires will not be accepted for disposal at the proposed landfill. Asbestos will only be accepted if it is in the proper regulatory approved containers. The operation plan specifies inspection procedures and procedures to be followed if prohibited wastes are discovered. All vehicles hauling waste to the landfill will be weighed and inspected by the operator or appointed attendants at the entry to the landfill. A load inspection will be performed to determine if the waste conforms to the approved waste description before the waste can be disposed. Paperwork, checks, controls, and records maintenance will be performed, as well as random load inspections for municipal solid waste generated by households. Spotters will observe the actual unloading of each vehicle at the active cells. Unacceptable waste will be rejected and cannot be disposed of at the site. Unacceptable waste that is already unloaded inadvertently at the site will be required to be removed immediately. DER will be notified of attempts to dispose of unacceptable waste at the landfill site. The operation plan provides for weighing and measuring of incoming waste and vehicle traffic control and unloading control. All these vehicles will be weighed and inspected before proceeding to disposal cells. The operation plan provides a method and sequence for filling waste into the disposal cells. Waste disposal will begin in the southwest corner of cell one and waste will be disposed in that cell up to an established final grade and the final capping process will be commenced before beginning disposal in another cell. Waste will be compacted on a daily basis when a load is received. Compaction equipment operates continuously over disposed waste loads to obtain maximum compaction. A daily cover of six inches of clean soil will be applied at the end of the day unless more waste will be disposed on the working face within 18 hours. Daily cover helps reduce disease-vectors, such as flies and rodents, as well as to reduce windborne litter. The gas control system will be maintained to insure that riser pipe vents are not dislodged and will be monitored to insure that explosive limits of methane are not reached. When leachate levels in the lagoon reach a certain level, the leachate will be withdrawn and recirculated back over the working face of the disposal area or else hauled off site to a waste water treatment facility for treatment and disposal. Leachate recirculation is becoming an accepted treatment method by regulatory agencies and is considered an effective industry standard treatment method. Leachate is recirculated by application to the active working face of the disposal cell by a watering truck and is dropped on the cell through a distribution bar or open valve pipe at the back of the truck. Leachate will not be applied during rainfall nor will it be aerially sprayed on the cell. Municipal solid waste has significant absorption capacity, so that large quantities of recirculated leachate are absorbed by the waste. The leachate that does eventually run through the waste is collected in the leachate collection and removal system and does not mix with runoff going into the storm water management system. The leachate lagoon is surrounded by a containment dike area with a loading station inside the dike for removal of leachate by truck for off-site treatment at a waste water treatment plant. A hose is hooked to a tank truck and leachate is pumped into the truck. Any spills during the loading process will be contained by the dike and will flow back into the leachate lagoon. The storm water management system will be operated to insure that there is no mingling of leachate with storm water runoff. The design provides for three diversion berms running the length of the Class I disposal cell which divide the cell into four smaller working cells. Any rainwater falling in the clean, unused cells will be removed to the storm water management system. The rain coming into contact with the working face is leachate and is collected and removed from the cell by the leachate control system. The operation plan addresses and satisfies each requirement of Section 17-701.050(6)(b), FAC. Rule 17-701.050(6)(c), FAC, requires certain operational design features to be incorporated in the landfill. Thus, the entire site will be enclosed by a minimum four-foot high fence with a gate that will be locked during off hours. To Shoo Fly Bridge Road is a county-maintained, all-weather road that provides main access to the landfill site. In addition, the roads on the site will be stabilized, all-weather roads. The operation plan provides for signs indicating the name of the operating authority, traffic flow, hours of operation, and any disposal charges, as well as scales for weighing the waste loads received at the site. Dust will be controlled by water spraying to avoid contaminated runoff due to chemical sprays and oils. Dust will be further minimized by use of paved roads, minimizing the areas of disturbed soil, vegetating stockpiles as soon as possible, and vegetating final and intermediate cover areas. Daily cover, use of portable fences, and cleaning operations by operating personnel will provide litter control. Firefighting equipment and facilities adequate to insure the safety of employees will be located on site. Daily cover will be used to minimize the potential for fire and fire extinguishers and water will be used to fight fires. If a fire is too large to effectively fight with on-site equipment, the Holmes County Fire Department will be called to assist. The operation plan for the landfill meets the requirements depicted in the above-cited rule at paragraph (d) in terms of personnel and facilities requirements. A certified attendant will be on site during all hours of operation and a telephone will be located on site. Equipment requirements are contained in the above-cited rule at paragraph (e). The applicant will thus maintain and operate a large bulldozer, soil scraper, front-end loader, water truck, motor-grader for cleaning roads, and portable pumps for storm water management and leachate management. In the event of an equipment breakdown, the plan provides for an agreement between the operator and a local heavy-equipment company to provide a compactor and other essential equipment within 24 hours. The equipment will have protective roll bars or roll cages, fire extinguishers on board, and windshields. The operation plan otherwise provides for protective devices and gear for heavy equipment and for personnel themselves, such as dust masks and hearing protection devices, hygienic facilities in the maintenance building and office, potable water, electric power, emergency first aid facilities and the like. Employees will be hired locally and trained in appropriate safety procedures and practices. In accordance with the provisions of Section 17-701.050(6)(j), FAC, the operation plan calls for solid waste in the Class I cell to be spread in layers of approximately two-feet in thickness and compacted to approximately one-foot thickness before the next layer is applied. Weekly compaction of the waste will be accomplished by heavy equipment at the Class III cell. The compostible materials and the yard trash at the Class III cell will be removed and composted on site. Bulky materials that are not easily compacted will be worked into the other waste materials to the extent practicable. As required by paragraph (k) of the above-cited rule, the compacted solid waste material will be formed into cells with the working face and side grades above surface at a slope of no greater than 30 degrees. The cell depth will be determined by the area in operation, daily volume of waste, width of the working face, and good safety practices. Waste will be placed into the cell beginning at the southwest corner and spread northward, eventually reaching grade level. As elevation of the cell approaches final grade, intermediate and final cover is applied to the cell. The final slope grade will be approximately 4:1 and will be terraced. The operation plan meets the requirements contained in paragraph (6)(1) of the above-cited rule that the cell working face be only wide enough to accommodate vehicles discharging waste and to minimize the exposed area and use of unnecessary cover material. The waste will not be spread across the entire cell immediately but instead will be spread on a small working face. The typical working area may be 50 feet by 50 feet or slightly larger, and will become larger as more loads of waste are received. Waste is deposited on the working face and compacted until final grade is reached, working across the face of the active cell in a terraced effect. Intermediate and final cover are applied to the portions of the cell that have reached design dimensions. The working face is kept as small as possible to minimize leachate generation, disease-vector problems, and the need for daily cover. The landfill operation meets the requirements contained in paragraph (6)(m) of the above-cited rule to the effect that initial cover will be applied to enclose each working cell except the working face, which may be left uncovered if solid waste will be placed on the working face within 18 hours. If there are adverse environmental impacts or problems with disease-vectors, initial cover will be placed on the working face at the end of each day for the Class I landfill cell and once a week for the Class III cell. The operation plan provides that an intermediate cover of one foot of compacted soil will be applied in addition to the six-inch daily cover within seven days of completion of the cell if final cover or an additional lift is not to be applied within 180 days of cell completion, as required by paragraph (6)(n) of the above-cited rule. The landfill will be closed in accordance with Sections 17-701.050(4) and 17-701.070-.076, FAC. The operation plan further provides that daily cover will control disease-vectors, such as flies, rather than employing use of pesticides. Uncontrolled or unauthorized scavenging will not be permitted at the landfill and will be controlled by fences and on-site personnel. Class III Cell The proposed Class III cell will be located over the old Class I cell last used by Holmes County. This area has a recompacted clay liner and a leachate collection system in place. Only yard trash will be deposited in the Class III cell, however. Based upon the Class III cell design and operating plan that will permit only yard trash disposal in it, any leachate generated from the Class III cell will not pose any threat to or violate applicable water quality standards in or outside the zone of discharge. Asbestos disposal is proposed at the landfill site. A separate asbestos disposal cell is proposed. The operation plan will provide that the asbestos be covered daily with a proper dust suppressant or six inches of non- asbestos material or will be disposed of in an area where proper warning signs, fences and barriers are present. Asbestos accepted for disposal at the landfill will be bagged and accompanied by shipping documents as required by EPA rules appearing in Title 40, Code of Federal Regulation. Persons working around asbestos will be specifically trained in its handling and must use appropriate protective equipment, as required by the National Emission Standards for Hazardous Air Pollutants set forth at 40 CFR 61.25 and other applicable federal regulations. The applicant proposes to dispose of petroleum contaminated soils at the landfill, as well. These soils will be mixed in with the waste on the working face. The soils will not be used as an intermediate cover or come into contact with surface water that will be conveyed to and treated in the storm water management system. Landfill Closure The application includes general plans and schedules for closure of the new and existing landfills. Once final grade is reached, an intermediate cover is applied over the daily cover if the working face will not receive any more waste or will receive final cover within 180 days. The gas control system will then be installed and the final cover consisting of an impermeable synthetic cap will be applied. The final cover will be a plastic cap constructed of polyvinyl chloride (PVC), HDPE, or some other synthetic material and covered by one foot of protective soil, topped by six inches of topsoil to promote vegetation growth. Soils for the closure effort will be obtained on site and will not be obtained by dredging in any jurisdictional wetlands. The final design provides for a terraced landfill profile for the new Class I cell. The waste levels will not exceed 10 feet in height and will be terraced at a 4:1 slope. The terraces will slope back against the cell wall and will be underlain by a subdrain to collect runoff and convey it to the storm water management system. This will prevent erosion of the final cover, waste exposure, and thus, additional leachate generation. The application contains a closure plan containing a general landfill information report and various other plans, investigations, and reports addressing all criteria and factors required to be addressed by Section 17- 701.073(6)(a)-(i), FAC. All such plans, reports and investigations were certified by Pearce Barrett, a registered professional engineer, expert witness and landfill designer for the applicant. The application contains a detailed estimate of closure costs and a monitoring and long-term care plan for the landfill meeting the requirements of Sections 17-701.075 and 17-701.076, FAC. An interest-bearing escrow account will be established for the landfill within 30 days of permanent issuance to cover the closure costs. Funds for closure, monitoring and long-term care of the landfill will be set aside as tipping fees are paid. As portions of the landfill are closed, funds in the escrow account will be available to pay for closure. This type of landfill closure and closure funding is termed "close as you go". This insures that available funds to close the landfill will be present so that funding problems such as those associated with the existing landfill will not arise. The long-term care plan provided for in the permit application and in the applicant's evidence provides for monitoring and maintenance of the landfill for a 20-year period after closure is complete. The storm water management system will be maintained and ground water monitored as part of this long-term care plan.
Recommendation Having considered the foregoing Findings of Fact, Conclusions of Law, the evidence of record, the candor and demeanor of the witnesses, and the pleadings and arguments of the parties, it is RECOMMENDED that a Final Order be entered by the Department of Environmental Regulation dismissing the petition filed in opposition to the permit application and approving EPAI's application for the permit at issue, authorizing construction and operation of a 20-acre Class I, Class III, and asbestos landfill, as well as authority to close the existing 25.5-acre Class I landfill in Holmes County, Florida, in the manner and under the conditions delineated in the application, as amended, the Intent to Issue and draft permit and the above Findings of Fact and Conclusions of Law. It is further RECOMMENDED that the motion for attorney's fees and cost be denied. DONE AND ENTERED this 6th day of April, 1993, in Tallahassee, Florida. P. MICHAEL RUFF Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 6th day of April, 1993.
The Issue Whether the City of Jacksonville has provided reasonable assurances that a proposed modification of its permit to operate the City of Jacksonville North Sanitary Landfill by allowing an additional 35 feet of waste to be disposed of in Phase IIIb of the City of Jacksonville North Sanitary Landfill will not cause pollution in violation of any of the provisions of Chapter 403, Florida Statutes, or the rules promulgated thereunder? Whether the City of Jacksonville proposed modification of its permit to operate the City of Jacksonville North Sanitary Landfill by allowing an additional 35 feet of waste to be disposed of in Phase IIIb of the City of Jacksonville North Sanitary Landfill should be denied because of alleged violations of the City of Jacksonville's permit or Florida law?
Findings Of Fact Introduction. The City of Jacksonville North Sanitary Landfill. The City of Jacksonville (hereinafter referred to as the "City") operates two solid waste disposal facilities. One, the City of Jacksonville North Sanitary Landfill (hereinafter referred to as the "North Landfill"), is located at the intersection of New Berlin Road and Island Drive in the northern part of the City and Duval County, Florida. The North Landfill is operated pursuant to permit #SC16-12205 (hereinafter referred to as the "Permit"), issued by the Department on June 6, 1988. The Permit was issued "for operation of the City of Jacksonville North Sanitary Landfill, Phases I, II, and 111a; and of a new disposal area at the North Sanitary Landfill, Phase IIIb." The area in which the North Landfill is located is generally commercial property, with some rural and residential property: The North Landfill is bounded on the north by unimproved land owned by the City. This property stretches to Cedar Point Road. A few parcels within the property owned by the City to the north of the North Landfill are owned by others, including Mr. and Mrs. Leigh. The property to the east of the North Landfill is also unimproved property. It is owned by the St. Johns River Power Park. The St. Johns River Power Park is a power plant facility operated as a joint venture by the City, the Jacksonville Electric Authority and Florida Power and Light. The plant is located on the southern boundary of the North Landfill. The west boundary of the North Landfill is New Berlin Road. The property to the west of New Berlin Road is owned by a number of persons, including M & M Dairy. Phase IIIb of the North Landfill is located in the northeast quadrant of the landfill. The North Landfill primarily serves northern, and a part of western, Duval County. Approximately 3,000 tons of solid waste is disposed of each day in Jacksonville. Approximately 55% of the solid waste is disposed of at the North Landfill. The solid waste disposed of at the North Landfill consists primarily of mixed municipal solid waste and commercial solid waste. The North Landfill is open seven days a weeks from 5:00 a.m. to 11:00 p.m. All phases of the North Landfill are permitted to a height of 75 feet. The land on which the North Landfill is located is approximately 25 to 30 feet above sea level. Therefore, approximately 45 to 50 feet of solid waste can be disposed of at the North Landfill. All phases of the North Landfill have some remaining capacity for the disposal of additional solid waste. The Petitioners. Ms. Holzendorf's residence is approximately ten miles from the North Landfill. Her office is located approximately seven miles from the North Landfill. She does not own any real property located in the immediate vicinity of the North Landfill. Ms. Holzendorf can smell the odor from the North Landfill at her residence when the wind is blowing from the North Landfill toward her residence. Ms. Holzendorf is a Florida State Representative for District 16. District 16 includes the population of approximately one-third of Duval County, The North Landfill is located within District 16. Ms. Holzendorf has received complaints from some of her constituents about the North Landfill. Ms. Holzendorf drives by the North Landfill approximately twice a week. She has visited the site on several occasions. Robin G. and Geraldine Leigh own real property adjacent to Cedar Point Road. The land is unimproved except for a well. The Leigh's land is located north of the unimproved City property located adjacent to the northern boundary of the North Landfill. The Leighs' land is approximately three-fourths of a mile from the North Landfill. The City's Proposal. On August 3, 1988, the City filed an application with the Department for a modification of its Permit. In its application the City requested a "construction permit modification" of its Permit consisting of "extending the height of Phase IIIb of the North Landfill to a constructed elevation including final cover of no greater than 110 feet, NGVD." The City's requested modification of the Permit will provide the City with an additional six months of solid waste disposal capacity. The Department proposed to grant the City's requested modification. The Department issued a proposed Permit modification (hereinafter referred to as the "Modified Permit"). Structural Design of Phase IIIb. Leachate Control System. Waste dumped at the North Landfill is covered daily. Rain falling on the site is disposed of either as "leachate" or stormwater. Leachate is liquid which passes through, and emerges from, solid waste. Leachate on Phase IIIb of the North Landfill is collected and disposed of by a control system which was designed by George Knecht. Mr. Knecht described the leachate control system as follows: The leachate collection system consists of a two-foot drainage layer placed on top of the plastic liner. In this case the city used a plastic liner rather than a clay liner. It's HDPE, which is high-density polyethylene, and that collects the liquid and lets it flow downhill in this drainage layer to the central point, at which point the city has installed a six-inch perforated pipe which is wrapped in a filter media, which is basically a stone, a rock, which in turn is wrapped in a filter media which is porous cloth, and the purpose is that the liquid coming through the landfill gets into this drainage layer, runs downhill in the drainage layer, goes through the filter cloth, and the filter cloth keeps the sand from penetrating into the granular rock, goes through the rock and into the pipe, and then pipes are laid in a sloping downhill direction so that the fluid, once it gets in there, runs downhill. It's collected in manholes at the end of each one of these pipes. Transcript of Formal Hearing, page 49, lines 4-23. The leachate control system of Phase IIIb was properly installed and designed. Although the Petitioners raised questions concerning the manner in which the leachate control system was installed and designed, they did not offer sufficient evidence to contradict the evidence presented by the City that the system was properly installed and designed. The evidence also failed prove that the addition of 35 feet of solid waste to Phase IIIb will adversely affect the operation of the leachate control system. The addition of 35 feet of solid waste to Phase IIIb will probably ultimately have a beneficial effect on the leachate control system of Phase IIIb of the North Landfill. When Phase IIIb reaches its currently authorized height of 75 feet, the leachate depth on the liner of the control system is expected to be an average of approximately three inches. If an additional 35 feet of waste is added to Phase IIIb, the leachate depth on the liner of the control system is expected to decrease to an average of approximately two inches. The depth of leachate on the liner of the leachate control system of Phase IIIb will not exceed one foot. Specific Condition 3 of the Permit required that the City arrange for Department representatives to inspect the facility in the company of the Permittee, Engineer, and onsite operator after completion of construction activities. Cells I and II of the leachate control system of Phase IIIb were not inspected by the Department. The Department was provided with a certification from a registered professional engineer that the installation was inspected and met state requirements. The Department normally relies upon such certificates. Stormwater Disposal System. Rainwater which does not percolate through the waste, thus becoming leachate, runs off in the form of stormwater. Stormwater will consist primarily of rain which strikes the sides of the pyramid formed by the waste deposited on Phase IIIb of the North Landfill. The existing stormwater disposal system of all phases of the North Landfill consists of a series of ditches which collect stormwater and channel the stormwater to other ditches which surround the perimeter of the North Landfill. Stormwater travels through the ditches to collecting ponds located at the northeast corner of the North Landfill. Water reaching the holding ponds is treated by sunlight, oxidation and sedimentation. Ultimately, water reaching the holding ponds runs into Brown's Creek. The existing stormwater collection system of Phase IIIb is in compliance with the Department's permitting requirements. The proposed increase in height of Phase IIIb should not have any appreciable impact on the quality of stormwater eventually emptied into Brown's Creek. Phase IIIb will be capped with an impermeable cap when it is closed. The City has had a stormwater management system designed to take into account the effect of the cap on stormwater disposal. The stormwater collection system which will be installed when Phase IIIb is closed will consist of ditch blocks which will separate the stormwater collection system of Phase IIIb from the other phases of the North Landfill. Stormwater from Phase IIIb will be directed to a new holding pond. Stormwater will eventually be discharged into Brown's Creek. The stormwater collection system which will be installed when Phase IIIb is closed will meet the requirements of Rule 17-25, Florida Administrative Code, and the St. Johns River Water Management District. The system will actually have a positive impact on water quality. Foundation. The earth beneath the leachate control system of Phase IIIb, because of the weight of the solid waste to be deposited above it, is expected to settle approximately twelve inches under 75 feet of solid waste. The addition of 35 feet of solid waste to Phase IIIb is expected to cause the earth beneath the leachate control system to settle an additional six inches for a total of one and one-half feet. The additional 35 feet of solid waste will not adversely affect the structural integrity or functional capacity of the leachate control system of Phase IIIb. The proposed 35 foot addition of solid waste should not affect the ability of the earth beneath Phase IIIb to support the loads and stress it will be subjected to. III Alleged Violations. Water Quality There is a marsh located to the northeast of the North Landfill. The marsh forms the headwaters of Brown's Creek. Brown's Creek flows into the St. Johns River, south of the North Landfill. Alfred Mintz, the former owner of Clapboard Creek Fish Camp, a fish camp located approximately four miles from the North Landfill, testified about a "black gooey substance" which was on the surface of Clapboard Creek and Brown's Creek. Clapboard Creek flows to the northeast and east of the North Landfill. It eventually flows into the St. Johns River. The substance came from the direction of the North Landfill. Mr. Mintz did not know what the substance was and was unable to identify the source of the substance. The evidence failed to prove what the substance was or that the North Landfill was the source of the substance. Anita James, a commercial fisher, testified about a "film" which she saw on Brown's Creek near the St. Johns River. The substance was not identified. Nor was the source of the substance identified. Ms. James' belief that the film came from the North Landfill is not sufficient to support a finding of fact that the film whatever it was, came from the North Landfill. Mr. Mintz and Ms. James also testified about dead and diseased fish, and a dead dolphin and a dead manatee which they had seen in Clapboard Creek, Brown's Creek and other waters in the vicinity. No competent substantial evidence was presented to prove that the deaths or the disease was caused by waste disposed of at the North Landfill. No evidence concerning what killed the fish, dolphin or manatee, or what caused the diseased fish, was presented. Specific Condition 13 of the Permit requires the City to monitor water at three points along the stormwater disposal system of the North Landfill. One of the three monitoring points is approximately one-tenth of a mile east of the North Landfill in Brown's Creek. During approximately ten years of monitoring of water conditions only two parameters, iron and coliform, have been found in excess of state standards. The evidence did not prove what the cause of the excess iron and coliform was. It is possible that the excesses were caused by leachate from Phases I, II and 111a, which do not have lined leachate control systems like Phase IIIb, seeping into the stormwater disposal system. Leachate from Phase IIIb does not aggravate the problem because the leachate control system of Phase IIIb is lined. The City and the Department entered into a Consent Agreement on July 14, 1989 (hereinafter referred to as the Consent Order). Pursuant to the Consent Order the City is required to update its monitoring of stormwater. Quarterly monitoring of 37 parameters will be required. Specific Condition 19 A 2) of the Modified Permit also specifies that 37 parameters are to be analyzed quarterly. Specific Condition 13 A 2 of the Permit only required analyses of 14 parameters. The requested modification of the Permit should not contribute or extend any adverse affect of the North Landfill on water quality. The Consent Order and Specific Condition 20 C of the Modified Permit require that the City analyze 35 parameters quarterly at four wells located inside the North Landfill. The City has contracted for the preparation of a groundwater monitoring plan consistent with the Consent Order and with the requirements of Rule 17-701.050, Florida Administrative Code. Based upon a review of a well inventory conducted by the City and groundwater studies, wells in the vicinity of the North Landfill, including the well on Mr. & Mrs. Leigh's property and the M & M Dairy, are not at risk of contamination. The requested modification of the Permit should not increase the risk of contamination of wells in the vicinity of the North Landfill. Violation of Height Limits. In 1988 the City filled some portions of Phases I, II and IIIa above their 75 foot limit. The City did not, however, intentionally violate the Permit height limits. The City exceeded the height limit of the Permit only because it believed that solid waste placed on the landfill in excess of 75 feet would eventually settle to less than 75 feet and that this was consistent with the Permits limits. The Department disputed the City's actions in exceeding the 75 foot limit for Phases I, II and IIIa in an administrative action separate from this proceeding. On July 14, 1989, the City and Department settled their dispute and entered into the Consent Order. Pursuant to the Consent Order, the City paid a fine of $1,800.00. The City also built a laser tower for use in measuring the height of the North Landfill and agreed to use it to make more frequent surveys of the landfill. The City was not required to immediately remove the excess height. The City has been allowed to wait until closure. Prior to closure the City can request permission from the Department to leave the excess height. In the modification of the Permit at issue in this proceeding, Specific Condition 3 specifically provides for the manner in which waste may be disposed of in Phase IIIb in an effort to avoid the problems with excessive height experienced with Phases I, II and IIIa. B. Litter. Specific Condition 17 of the Permit provides that [l]itter control devices shall be installed as necessary to prevent litter from leaving the disposal area. Litter outside of the perimeter of the North Landfill along the roads leading to the landfill comes primarily from trucks bringing waste to the North Landfill. A small amount of the litter also comes from the site itself. Although the trucks are not City trucks, the City's litter collection efforts have been extended to cover the main portions of the roads leading to the North Landfill. Litter around and on the North Landfill has been a problem. The City has taken a number of steps to control the amount of litter in and around the landfill: Waste deposited at the North Landfill is covered with six inches of soil. Although the City is not required to do so, six months before the formal hearing of these cases the City began covering the area of the landfill where waste is being deposited (hereinafter referred to as the "working surface") with six inches of dirt. The working surface is also located away from wind. Fences have been installed around the perimeter of the North Landfill. Fences are also placed around the working surface on windy days. Prior to 1989 the City patrolled the immediate vicinity around the North Landfill to collect litter which had not been covered. Collection was performed on a variable time schedule. Only three part-time employees participated in the collection patrols. Beginning in early 1989, the City expanded its litter collection patrols. The roads surrounding the North Landfill (New Berlin Road, Faye Road, Alta Road and Island Drive), are now patrolled daily by five full- time employees. The extent of the patrols prior to 1989 and since early 1989 is depicted on City exhibit 8. The inside of the perimeter of the North Landfill is patrolled for litter collection five days a week and on the weekend, as needed. The stormwater ditches are inspected on a daily basis. At the time of the formal hearing of these cases the stormwater ditches and retention ponds were being excavated. This process had been going on for approximately four to six months. The Modified Permit contains Specific Condition 13, which is essentially the same as Specific Condition 17 of the Permit. Additionally, the Modified Permit contains Specific Condition 8, which provides: The Permittee shall maintain litter controls to prevent litter from entering the collection ditches and from leaving the landfill site. In addition to litter control fences, the Permittee shall provide daily manual collection of litter entering collection ditches and leaving the site. Litter can best be controlled by compacting the waste, picking up litter regularly and using fences. The City has employed these methods of litter control. The City's efforts have been reasonable. The proposed increase in height of Phase IIIb will not adversely affect the amount of litter associated with the North Landfill or the City's litter collection efforts. The City is not required to continue to patrol the roads leading to the North Landfill which it is currently patrolling to pick up litter that is attributable to trucks bringing waste to the North Landfill. Odor. There is no dispute that there is undesirable odor associated with the disposal of solid waste. This is true of the North Landfill. There is undesirable odor associated with the North Landfill most of the time. The nature of the odor associated with landfill's generally, and the North Landfill in particular, was described at the formal hearing as follows: Q The odor that you noticed, is it to some degree all the time? A Some days it won't, but that's very rare. Usually it may be more. Some days it may be in the afternoon, it may not smell in the morning, it may be in the afternoon. Some days it may be in the morning and may not be in the afternoon. Q Could you quantify what percentage of the time? A Probably about 75 percent of the time. Q And you indicate that at times it's much stronger than at other times? A Yes. Q You mentioned odor from the landfill. This was back in time now a good way. When did you start noticing an odor from that landfill? A When did I first start noticing it? Q Yes. A The very day they started dumping. Q And that odor has persisted since then? A Not every -- not every single day, but yes. Q Some days you will have it, some days you won't? A Yes. Q How many years are we talking about since they opened approximately? A Well, we have been out there 17 years. . Q So, over that 14 or 15 years, is it fair to say that basically you have an odor, and some days it will be worse than the average odor, and some days `it will be better than the average odor? A Yes. Transcript, page 511, lines 9-15, page 514, lines 9-13, page 516, line 25, and page 517, lines 1-21. Specific Condition 16 of the Permit provides that 1[o]bjectionable odors originating from the site shall be effectively controlled during all phases of operation. The most effective method of dealing with undesirable odor associated with landfills is to cover the waste daily and minimize the contact of waste with water. The City has been covering the waste disposed of at the North Landfill on a daily basis. The City's efforts have resulted in the North Landfill being as odor free as a "well run" landfill can be. A City ordinance provides for citizen participation in controlling odors in Jacksonville. This ordinance is enforced by the City's Bio- Environmental Services Division. As part of enforcing the odor ordinance the City provides a 24-hour telephone service which citizens can call and complain about odors. Since January, 1988, the City has received 5,500 complaints--an average of 280 complaints a month. Complaints received about odor are investigated by nine inspectors employed by the City. If five or more validated complaints are received about an odor producer during a 90-day period, the City issues a citation. Since January, 1988, the City has received only three complaints about the North Landfill from citizens. No citations have been issued against the North Landfill. Specific Condition 16 of the Permit is included in the Modified Permit as Specific Condition 15. The Modified Permit also includes Specific Condition 6, which provides: The Permittee shall apply no less than 6 inches of compacted initial cover to the top and sides of each cell by the end of each working day, except on the working face which may be left uncovered if additional solid waste will be placed on the working face within 18 hours. An intermediate cover of one (1) foot of compacted earth, in addition to the six (6) inch initial cover, shall be applied within seven (7) days of cell completion if final cover or an additional lift is not to be applied within 180 days of cell completion. The Permittee shall ensure that an adequate quantity of acceptable cover material is available for use during each day of operation of the landfill. The modification of the Permit will not increase the odor associated with the North Landfill. It will, however, extend the period of time that odors emanate from the North Landfill. Access to the North Landfill and Dust. Specific Condition 20 of the Permit provides that "[d]ust free, all- weather access roads to the site and active disposal area, or alternative wet weather disposal area shall be maintained." This condition has been complied with by the City. This condition is included as Specific Condition 12 in the Modified Permit. The roads used to access the North Landfill are paved, two-lane roads. The lanes are twelve feet wide. The speed limit on the access roads is 45 m.p.h. Appropriate turn lanes are available. During December, 1988, New Berlin Road and the North Landfill were able to effectively handle 600 trucks per day, an average of 80 to 90 trucks an hour during peak hours. Normally, the North Landfill effectively handles approximately 300 garbage trucks and 100 cover-dirt trucks a day with a peak of approximately 60 trucks per hour. The unpaved right-of-way on the side of the roads leading to the North Landfill is worn and the source of dust. Dust associated with the North Landfill comes from the roads leading to the landfill. The evidence failed to prove that dust comes from within the perimeter of the North Landfill. Tire Storage. Whole tires have been stored and processed at the North Landfill. At the time of the formal hearing there were more than 1,000 tires at the landfill. The evidence failed to prove how long any specific quantity of tires had been stored at the North Landfill. The City has not allowed the disposal of any whole tires at the North Landfill since July 1, 1989. The City has been shredding tires at the North Landfill. At the time of the formal hearing the City had contracted for the shredding of all the tires which had been located at the North Landfill at the time the contract was entered into in early July, 1989. The contract in existence at the time of the formal hearing was scheduled to expire in October, 1989. The City, however, expected to enter into a follow-up contract to continue shredding tires. In February or March, 1989, the previous tire- shredder contractor walked off the job. Mosquitoes at the North Landfill are managed by the City's Bio- Environmental Services Mosquito Control Division. Spraying is only done "as needed", however. F. Hazardous Waste, Oil Recycling and Infectious Waste. The City has not established an independent hazardous waste disposal program, a used oil recycling program or a infectious waste disposal program. The City attempts to prevent disposal of hazardous waste, used oil and infectious waste through educating the public with signs posted at the North Landfill entrance and periodic inspections of waste disposed of at the North Landfill. The evidence failed to prove that hazardous waste, used oil or infectious waste is being disposed of at the North Landfill. The evidence also failed to prove that approval of the Modified Permit will cause the disposal of hazardous waste, used oil or infectious waste on Phase IIIb of the North Landfill. Specific Condition 5 of the Modified Permit prohibits the disposal of hazardous waste and infectious waste at Phase IIIb of the North Landfill. This condition also requires that the City provide a minimum of one spotter for each working fact of Phase IIIb to watch for unauthorized waste.
Recommendation Based upon the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that a final order be issued by the Department approving issuance of the Modified Permit, modified by the inclusion of a Specific Condition requiring that the City continue its litter patrols as represented at the formal hearing. DONE and ENTERED this 3rd day of January, 1990, in Tallahassee, Florida. LARRY J. SARTIN Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 3rd day of January, 1990. APPENDIX Case Numbers 89-0532, 89-0569 All of the parties except the Petitioners in case number 89-0569, have submitted proposed findings of fact. It has been noted below which proposed findings of fact have been generally accepted and the paragraph number(s) in the Recommended Order where they have been accepted, if any. Those proposed findings of fact which have been rejected and the reason for their rejection have also been noted. Ms.'s Holzendorf's Proposed Findings of Fact Proposed Finding Proposed Finding Paragraph Number in Recommended Order of Fact Number of Acceptance or Reason for Rejection See 49-52. The Consent Order was entered into on July 14, 1989. The last sentence is not supported by the weight of the evidence. See 49. 80. Whether a violation of Chapter 17- 711, Florida Administrative Code, has occurred is a conclusion of law. The weight of the evidence failed to prove that there is not program for the disposal of tires. The last paragraph of this proposed finding of fact is not supported by the weight of the evidence. IV See 54-55, 61-63, 73 and 77. IV-Hazardous Waste: 86. See 87-89. The second sentence is not supported by the weight of the evidence. Argument. Not supported by the weight of the evidence. V-Used Oil Recycling Plan: 86. See 87-89. The second sentence is not supported by the weight of the evidence. 86. See 87-89. The last paragraph is not supported by the weight of the evidence. Not supported by the weight of the evidence. Not relevant to this proceeding. The Modified Permit only involves a lined portion of the North Landfill. The Department's Proposed Findings of Fact Proposed Finding Paragraph Number in Recommended Order of Fact Number of Acceptance or Reason for Rejection 1 1-3. 2 2. 3 15. 4 18-19 and 26. 5 20. 6 22-23. 7 34-36. 8 26-29. 9 32-33. 10 30. 11 41-42. 12 43. 13 37-40. 14 49. 15 61-62 and 64. 16 55. 17 56 and 58. 18 74-78. 19 80 and 82-83. The City's Proposed Findings of Fact Proposed Finding Paragraph Number in Recommended Order of Fact Number of Acceptance or Reason for Rejection Contrary to testimony of Ms. Holzendorf. Statement of law. 3-4 Hereby accepted. 5 Statement of law. 6 10. 7-8 13. 9 9. 10 1-2. 11 1-2 and 7. 12 4. 13 5. 14 1. 15 6. 16-19 3. 20 14. 21 Hereby accepted. 22 7. 23 8 and 49. 24 16. 25-26 20. 27-28 Hereby accepted. 29-30 25. 31 Hereby accepted. 32-35 22. 36-43 Hereby accepted 44 35-36. 45 Hereby accepted. 46 35. 47 See 36. 48-49 Hereby accepted. 50 44. 51-52 46. 53-58 Hereby accepted. 59 47. 60 48. 61 46. 62-63 Hereby accepted. 64 27. 65-66 43. 67 31. 68 Hereby accepted. 69 33. 70 Hereby accepted. 71 33. 72 30. 73 32. 74 43. 75 30. 76-77 26. 78 42. 79 Not relevant to this proceeding. 80 45. 81-82 Hereby accepted. 83-84 44. 85-86 49-51. 87 49. 88 52. 89 Hereby accepted. 90 55-56. 91-93 56. 94 50. 95 56. 96 59. 97-100 56. 101 55. 102 Hereby accepted. 103 58. 104-112 These proposed findings of fact correctly quote testimony presented the formal hearing. at 113 61 and 64-65. 115 72. 116 66. 117 Hereby accepted. 118 67. 119 Hereby accepted. 120 69. 121 70. 122-123 70 and hereby accepted. 124 See 65. 125 65. 126-129 See 61-62. 130-131 77. 132 Hereby accepted. 133 75. 134 Not relevant to this proceeding. 135 77. 136 79. 137-139 These proposed findings of fact correctly quote testimony presented at the formal hearing. 140 80. 141 82-84. 142 84. 143 81. 144 85. 145-147 Hereby accepted. 148 Cumulative. 149 37-38. 150-152 38. 153-155 40. 156 39-40. 157-161 Hereby accepted. COPIES FURNISHED: Lacy Mahon, Jr., Esquire Mark H. Mahon, Esquire Russell L. Healey, Esquire Lacy Mahon, Jr. & Mark Mahon, P.A. 1120 Blackstone Building Jacksonville, Florida 32202 Robin G. Leigh and Geraldine Leigh 6026 Heckscher Drive Jacksonville, Florida 32226 William H. Congdon Assistant General Counsel Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32399-2400 Daniel D. Richardson, Esquire Dale H. Twachtmann, Secretary Robin A. Deen, Esquire Department of Environmental Office of General Counsel Regulation Environmental Law Division 2600 Blair Stone Road City of Jacksonville Tallahassee, FL 32399-2400 Towncentre, Suite 715 421 West Church Street Jacksonville, Florida 32202
Findings Of Fact On April 29, 1983, the Respondent Waste Aides Systems, Inc. (hereafter referred to as Waste Aides), filed with the Department of Environmental Regulation (Hereafter referred to as DER) an application to construct and operate a solid waste transfer station. The proposed transfer station would be located at the site of an existing solid waste landfill at Ridge Road and Landfill Road, New Port Richey, Florida. On May 24, 1983, DER, by letter to Waste Aides, requested additional information concerning the permit application and seeking further assurances with regard to control of wash down water and storm water runoff. On June 7, 1993, Waste Aides, by letter provided the additional information, and on June 14, 1983, DEP issued a letter of intent to issue the permit to Waste Aides. The proposed facility is to be located on a parcel of land previously used as a solid waste landfill, but the area where the facility is to be built is not a previously filled solid waste area. The proposed facility will utilize a building which is enclosed on the south, east, and west, and open to the north. The building will be approximately 120 feet wide, 48 feet deep, and 31 to 34 feet high. The general operation of the facility will be to transfer residential and commercial solid waste from garbage trucks to large tractor-trailer trucks for transport to a more isolated solid waste landfill. The facility will not accept hazardous waste or heavy industrial waste. The solid waste will be transported to the facility in garbage trucks. The solid waste will be dumped on a concrete floor inside the building and will then be pushed into a loading chute which sits directly above a waiting trailer. Once the trailer is filled, the solid waste is then transported to an offsite landfill where it is ultimately disposed of. Security at the facility will be accomplished through fencing and gates. The entire property is surrounded by a fence. A gate will be placed at Ridge Road, and a second gate will be installed at the entrance to the property itself. No unauthorized vehicles will be permitted to enter the property or unload solid waste at the facility. The facility will be equipped with two fire control hoses located on the east and west walls of the building. Potable water will be provided to the facility through a hookup to a 16-inch water main at Ridge Road. The facility will have impact sprinklers and spray bars inside the loading chute. Each vehicle on site will be equipped with a fire extinguisher, and two portable fir extinguishers will be located inside the building at appropriate locations. The impact sprinklers will also be utilized for dust control. Each vehicle on site will be equipped with a two-way radio which provides contact with the administrative office and maintenance area of the applicant. The phone in the cardboard recycling facility located on the same property of the proposed facility will be available for use by the operator of other employees of the transfer facility. The recycling facility is owned and operated by the applicant and is directly adjacent to the proposed transfer facility. The operator will be responsible for keeping records of materials handled by the facility. A recordation of volume will be measured and entered as collection trucks discharge their contents at the facility. A scale will be built into the loading area of the transfer trailers, and the weight of all refuse transferred will be recorded by load on a daily basis. These records will be open during normal business hours for inspection by DER representatives, health inspectors, and other authorized regulatory and enforcement agencies. The transfer station operator will be the foreman of the facility and will be present during all hours of operation. The tractor-trailer operator and the operators of the garbage trucks will be present at the facility during unloading and loading. Two or three other employees will also be present on the grounds at varying times for cleanup, grounds work, and other duties at the facility. The facility will be visited and checked approximately twice daily by William R. Peterson and his brother, the owners and operators of the proposed facility. The applicant has available personnel presently in the employment of the applicant, who is a certified driving instructor and who is skilled in the instruction of safe and efficient operating procedures. Additionally, Waste Aides will provide instructions in first-Aides procedures by a person presently employed who is a trained emergency medical technician. Debris will be controlled by certain mechanisms built into the design of the building and by certain operational procedures that will be observed by the transfer station operator. The tipping floor where solid waste is discharged will be enclosed on three sides. When the solid waste is discharged onto the tipping floor, it is immediately pushed into a chute which allows it to fall into the waiting transfer trailer. There is approximately an 8-inch tolerance between the chute and the top of the trailer, and the chute has been designed to angle in toward the trailer so that solid waste will be directed into the trailer to avoid spillage. Additionally, a rubber or fabric membrane will encircle the chute so that when the transfer trailer drives beneath it, the membrane will be inside the transfer trailer, thus directing all solid waste into the trailer itself. An additional benefit of this design is that it will avoid the possibility of drafts of air blowing refuse in the trailer over its sides. The trailer area itself is depressed and thus out of the direct wind stream. Drafts are further buffered by vegetation windbreaks consisting of trees and shrubs located on the west and south sides of the building and by the topographical nature of the surrounding lands on the other two sides. The entire area of the transfer station is fenced as a final barrier to debris escaping the transfer station site. The refuse will normally be on the tipping floor a very short period of time because of the fact that it will be pushed into the transfer trailer immediately upon discharged from the collection vehicle. The refuse, as it is discharged from the collection vehicle, does not lend itself to a debris problem in that it is in a compressed state and tends to remain in a semifragmented mass until it is moved into the trailer. The entire transfer station and surrounding grounds will be cleaned at the end of each day by the station operator. The station will be operated at all times to be in compliance with the applicable noise regulation and ordinances of Pasco County. For noise abatement, Waste Aides has designed the building with noise control in mind. The tipping floor will be constructed with steel rails imbedded in the concrete to eliminate the noise of the front-loading metal bucket scraping on the concrete surface. Six-foot walls buffet all sides of the tipping floor except the north side. The north side is open to an approximate 10-acre tract which was the previous landfill site and will be unoccupied. The tipping floor is enclosed by a building which will provide a significant amount of noise control in a and of itself. There are vegetation screening barriers and earthen berms on the north, west, and south boundaries of the site. The berms will be covered with mature vegetation and will act a both a noise and visual barrier for the site. All equipment used in the operation will meet all county, state, and federal operational decible standards. Odor control will be provided primarily by operational standards which will emphasize the rapid removal of refuse from the site. All refuse will be removed daily except for the possibility of partially filled trailers remaining overnight on site. Should a transfer trailer be required to remain on the site overnight, it will be driven inside the building not less than every 48 hours or in accordance with an approved DER schedule. The tipping floor will be completely cleaned at the end of each workday by being swept broom-clean and then washed down with hoses. When the floor is washed down, the water and debris will flow along the sloped floor to a grid system which will direct the flow into a sand trap and a grease trap and then into a septic tank. The traps will be checked each day after wash down and will be cleaned periodically. The building has been designed in such a manner that no square corner will exist for the possible buildup of refuse. These same operational procedures and design features will discourage any attraction to vermin or birds. Similar transfer station operations in Florida have not experienced the vermin and odor problems typically associated with landfill site operations. The prosed facility will have electric service available. Shelter as well as hand-washing and toilet facilities are available for employees for the facility at the adjacent recycling building. Maintenance on trucks and other equipment will be performed at the applicant's maintenance area located on Osteen Road, approximately 1 to 1 1/2 miles from the proposed facility. Although the proposed facility is surrounded by developed residential areas, the property which is directly contiguous to the property where the proposed facility will be located remains undeveloped. The objectors' travel- trailer park is the closest developed area, and the distance from the nearest trailer to the proposed facility is approximately 950 feet. The design and proposed operation of the transfer station meets or exceeds the criteria contained in Rule 17-7.09, Florida Adminstative Code. Numerous residents in the area object to the location of a garbage transfer station. Their objections are based upon their experience with odor, vermin, birds, and litter experienced in connection with the landfill operation. However, the uncontradicted evidence established that those problems will not exist to any substantial degree in connection with the operation of the proposed garbage transfer station.
Recommendation Based upon the foregoing findings of fact and conclusions of law, it is RECOMMENDED That the Department of Environmental Regulation issue a permit to Waste Aides Systems, Inc., for the construction and operation of the proposed transfer station, subject to the specific conditions contained in DER's Notice of Intent. RECOMMENDED this 4th day of January, 1984, in Tallahassee, Florida. MARVIN E. CHAVIS Hearing Officer Division of Administrative Hearings 2009 Apalachee Parkway Tallahassee, Florida 32301 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 4th day of January, 1984. COPIES FURNISHED: Harvey v. Delzer, Esquire Post Office Box 279 Port Richey, Florida Douglas H. MacLaughlin, Esquire Assistant General Counsel 2600 Blair Stone Road Tallahassee, Florida 32301 John G. Hubbard, Esquire Post Office Box 1170 Dunedin, Florida 33528 Ms. Victorai Tschinkel Secretary Department of Environmental Regulation 2600 Blair Stone Road Tallahassee, Florida 32301 ================================================================= AGENCY FINAL ORDER ================================================================= DEPARTMENT OF ENVIRONMENTAL REGULATION ORCHID LAKE VILLAGE CIVIC ASSOCIATION, et al., Petitioners, v. OGC Case No. 83-0363 DOAH Case No. 83-2155 WASTE AIDES SYSTEMS, INC., and STATE OF FLORIDA DEPARTMENT OF ENVIRONMENTAL REGULATION, Respondents. /
The Issue Whether the Petitioner's request for variance should be granted.
Findings Of Fact Petitioner owns an undeveloped parcel of land in Palm Beach, County which is zoned industrial and on which he intends to construct a storage building to house and repair farm equipment. To provide sewage treatment at the site, Petitioner had designed an on site sewage disposal system and applied for a septic tank permit which was denied as was his variance request. The closest public sewage treatment plant to the property is over five miles from the site, and the closest private treatment is approximately three miles from the subject site. Petitioner has no easement to either site if capacity were available and if he chose to connect. However, the proof did not show capacity at either site. Although Petitioner does not intend to pollute the groundwater, the proof demonstrated that waste disposal into a septic tank from the maintenance and repair of farm equipment could result in the disposition of prohibited hazardous waste into the groundwater. Alternative methods of waste disposal are available which would properly dispose of the waste and, yet, protect the groundwater from contamination by hazardous waste. Such systems include certain aerobic treatment units and package plants. The monetary costs of these systems is greater than the septic tank proposal; however, the proof did not demonstrate that the cost was prohibitive or a hardship. Although the hardship, if any, caused by the denial of the variance was not caused by Petitioner, the proof failed to demonstrate lack of reasonable alternatives of waste disposal and the absence of adverse effect of the operation to the groundwater. Additionally, the proof failed to establish the ameliorating conditions of soil, water table or setback conditions although a survey of the property dated September 3, 1985, indicates that the subject parcel was not platted. Accordingly, the denial of the variance was proper.
Recommendation Based on the foregoing findings of fact and conclusions of law, it is RECOMMENDED that a final order be entered denying the variance. DONE AND ENTERED in Tallahassee, Leon County, Florida, this 6th day of July 1989. JANE C. HAYMAN Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 6th day of July 1989. COPIES FURNISHED: Lee B. Sayler, Esquire 50 South U.S. Highway One Suite 303 Jupiter, Florida 33477 Peggy G. Miller, Esquire Department of Health and Rehabilitative Services 111 Georgia Avenue Third Floor West Palm Beach, Florida 33401 Sam Power, Clerk Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700 Gregory L. Coler, Secretary Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700 John Miller General Counsel Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700
The Issue Whether WACOC has given reasonable assurance that the landfill it proposes to build would comply with applicable requirements of Chapter 403, Florida Statutes (1987), and rules promulgated thereunder?
Findings Of Fact A mile east of the intersection of U.S. Highway 90 and State Road 393, south of Dorcas in eastern Okaloosa County, WACOC has assembled some 1,760 acres on U.S. Highway 90 --- only 160 acres shy of three square miles. WACOC proposes to use as much of the land as possible for the disposal of solid waste, and "would like to use the proposed landfill as a regional landfill." Prehearing Stipulation, p.8. (T.68) The company does not own all the land outright but, with the conveyance of a parcel on the morning the final hearing began (T.77), WACOC had obtained (an encumbered) fee interest in the 55 acres on which it proposes to put Phase I, "a hole-in-the-ground landfill which can come into contact with the groundwater table," (T.737) and the subject of the pending application. WACOC has a "whole lot of option money out there," (T.86) although none of WACOC's stockholders has previous experience in the landfill business. Private Enterprise Chris Cadenhead owns stock individually and "is 100 percent owner of SRD, Incorporated" (T.93), itself an owner of WACOC stock. Serving with Chris Cadenhead and Larry Anchors on WACOC's board of directors, at the time of the hearing, was James Ward, formerly a legislator and chairman of the House Natural Resources Committee. (T.48) Like Mr. Anchors, Mr. Ward originally owned 24% of WACOC's stock. The only shareholder who testified at the hearing was Arthur Frederick Schneider. Before he succeeded Mr. Cadenhead as president of WACOC, Mr. Schneider had had a distinguished career as a naval officer, and later tried his hand at farming, but this venture ended in bankruptcy. "SRD has been funding this thing." (T.86) Where SRD, Inc. obtained more than three-quarters of a million dollars is not clear from the record. As far as the evidence showed, Chris Cadenhead's father, Rhett, had no interest in WACOC, although he did appear on behalf of the company at a county commission meeting in June of 1987. Larry Anchors, a WACOC shareholder and formerly an Okaloosa County Commissioner, contributed $35,000 a few days after the Okaloosa County Commission awarded the waste disposal contract. (T.87) Nothing has been paid the company under the agreement WACOC entered into with Okaloosa County on June 18, 1987, Citizens' Exhibit No. 1, which was reduced to writing on or before July 10, 1987. WACOC's Exhibit No. 1, App. 1. Under the contract, WACOC undertakes to move solid waste from transfer points in the southern part of the county and deposit them in the landfill it proposes for a per ton "tip fee of $17.70 (Present value as of 6/16/87)," WACOC's Exhibit No. 1, App. 1, p. 13 (emphasis in original), which is to be "adjusted automatically upward or downward to reflect the change in Consumer Price Index." Id. The County guarantees WACOC 275 tons per day and pledges to "exercise its best efforts to insure that all the Solid Waste generated within the County will be delivered to one of the designated transfer stations or the landfill," WACOC's Exhibit No. 1, App. 1, p. 8, for the next thirty years. At present, the County generates "including the municipality . . . about 525-550 tons a day." (T. 61) The County agrees to cooperate "to obtain financing of the real property and equipment necessary [for WACOC] to perform . . . by a proposed bond issue." WACOC's Exhibit No. 1, App. 1, p. 14. To this end, the county commission adopted a resolution authorizing issuance of industrial revenue bonds in accordance with Chapter 159, Florida Statutes, in an amount not to exceed $8,000,000. Alternatively, and perhaps more in keeping with current tax law, "it's going to one of the larger financial institutions like Merrill Lynch Pierce Fenner & Smith or someone like that and actually a bond issue through them, non-industrial," (T.74) or so WACOC intends. Phase I Designed to receive Okaloosa County's solid waste for five years, Phase I is to occupy a site on the eastern slope of a small hill between the east and west branches of Mare Creek, which converge in Fawn Lake, north of the property on which WACOC has options. Water flows out of Fawn Lake into a no longer bifurcated Mare Creek (which was dammed to create the lake), and ultimately into the Shoal River, more than 3,000 feet from the site. By rule, DER has designated Shoal River outstanding Florida waters. Fawn Lake and Mare Creek are Class III surface waters. The Phase I site is "zoned for agricultural uses, which was determined by the Okaloosa County attorney to be appropriate for a landfill." Prehearing Stipulation, p. 7, No. 5. "The county attorney's determination has not been ratified by the County Commissioners." Id. Site Geology "Subsurface conditions have obviously a tremendous effect on the design of the landfill." (T.592) "[A] site's geological and hydrological characteristics are relevant to its potential for contamination." Prehearing Stipulation, p.7, No.4. Throughout the 1760-acre site, beneath a thin topsoil and root mat layer, the site soils consist of clean loose sands to an average depth of about 8 feet below ground surface. . . . From a depth of about 8 feet to 18 feet, a layer of dense orange clayey medium to fine sand (with some coarse sand and fine gravel) covers most of the proposed landfill site. . . . Beneath the clayey sand unit are loose and dense . . . sands . . . . WACOC's Exhibit No. 1, Appendix B. The clayey sand unit occurring underneath the loose, Pliocene sands on the surface is part of the Citronelle formation, which "characteristically changes abruptly over very short distances." (TB. 29) The Citronelle consists "principally of quartz sand, with numerous beds, stringers and lenses of clay and gravel." CCE's Exhibit No. 21, p. 33. "The soils on the site standing alo[ne] would not be sufficient for a liner." I.T. 559 WACOC's expert reported an "average vertical hydraulic conductivity for [the upper Citronelle of] . . . 6.2 x 10-7 cm/sec (1.7 x 10-3 feet/day)." Laboratory tests on soil samples, taken more than eight and less than 18 feet below the surface of the site proposed for Phase I, demonstrated the variability of the sands making up the upper portion of the Citronelle formation on site. The percent finer than the U.S. No. 200 mesh sieve (silt and clay size fraction) . . . ranges between 17.5% to 41.7% . . . . "Vertical hydraulic conductivities for . . . [deeper] sands [on which waste disposal cell liners are to be laid] range from approximately 2.7 x 10-5 cm/sec to 5.8 x 10-4 cm/sec (0.08 to 1.62 feet/day)." Id. The variability of fines contents among samples reflects variability in hydraulic conductivity in the upper Citronelle, as well. This variability explains why an average permeability or vertical conductivity figure for the clayey sands in the upper Citronelle is of limited use in predicting how quickly rainwater will move through it, if these sands are used to cap the landfill after its completion, as proposed. Samples taken from eleven borings made throughout the entire 1,760-acre site were the basis for the applicant's average vertical hydraulic conductivity number. Only one of the borings was done on the Phase I site itself. If a ten-foot thick, continuous layer of clayey sands with a vertical conductivity of 6.2 x 10-7 centimeters per second occurred eight feet beneath the surface, the overlying Pliocene sands would hold a water table year round, given the high rainfall in the area. In fact, the applicants' consultants reported a water table on the Phase I site 21 to 30 feet down, beneath or within, but not above, the clayey sands in the upper Citronelle, in February of 1988. (T.595) The higher water tables observed in October of 1988 were also below the loose surficial sands. This demonstrates a vertical hydraulic conductivity for the upper Citronelle beneath the site proposed for Phase I well above the reported average. A borrow pit, off site but nearby, illustrates the fallacy of relying on average conductivity values to predict the movement of water. At the upper end of the excavation, a seep emerges from the sand to form a stream that flows 40 or 50 feet across red clayey materials resembling those on site, then sinks, disappearing into the earth. Even the value assigned to a particular split spoon sample may be a misleading average. B.T.126-7. Preliminary Plans Drawn In Phase I, WACOC proposes to excavate three different areas or cells for solid waste disposal "to approximately 20 feet below natural grade." (T.116) Accepting information they were furnished, the design engineers made the important (T.172) but erroneous assumption that the water table on site fluctuates only within a range "from five to fifteen feet" (T.132) below that. The plan is to fill each cell with solid waste and covering layers of various soils to a height 90 feet above existing grade. Trees growing within the 300- foot green belt planned for the perimeter of the 1,760-acre site would shield the landfill from the view of motorists on U.S. Highway 90. Separated from each other by berms, cells 1 (520' x 520') and 2 (520' x 650') would abut each other south of cell 3 (480' x 1170'), with another set of berms circumscribing all three cells. The bottom of each cell is to have a gradual V-shape, sloping "approximately one percent in the longitudinal direction and two percent in the traverse direction[s]," (T.116) toward the centerline. The plans call for compaction of the soils, once excavation has been accomplished, and for "root pickers" to remove rocks, roots and any other sharp objects. The plans do not contemplate the use of sieves. WACOC proposes to line these pits by covering the naturally occurring, compacted soils with a 1.5 millimeter (60 mil) layer of high density polyethylene, a plastic which has been manufactured for use in land fill liners at least since 1982. (T.401) The purpose of lining landfills is to contain contaminated water that would otherwise escape into the environment. Rain percolating through solid waste, together with moisture already in the solid waste at the time it is deposited in the landfill, leaches chemicals from the waste, producing a toxic solution called leachate. Products of industry make their way into household garbage and the municipal waste stream. About two percent of waste that reaches municipal sanitary landfills consists of materials which, if generated industrially in quantity could not lawfully be disposed of, except as hazardous waste. Scientists have "found municipal waste landfill leachates that were as toxic as those from Love Canal." (IT.696) Gundle Liner WACOC has decided to obtain a liner which meets minimum requirements of the National Sanitation Foundation Standard Number 54, Flexible Membrane Liners, November, 1983, from Gundle Lining Systems, Inc. (Gundle). "All Gundle materials are available in 22 1/2' widths with no factory seams " WACOC's Exhibit No. 7. Gundle's own employees would unroll the plastic, position it using "tack welding" to form a continuous sheet, join the strips with extrusion welds, inspect the seams visually, perform destructive "shear and peel tests . . . by random selection no less than the [to be] agreed [but unspecified at hearing] frequency . . . . [and conduct v]acuum testing [which] follows no specific standard." WACOC's Exhibit No. 7, Enclosure 6. (T.403, 411- 2) As a condition of the permit (No. 26), DER would require that an independent third party, a registered professional engineer, participate in quality assurance. High density polyethylene's "chemical resistance and durability. . . . enable[ Gundle] . . . to offer a 20-year warranty . . . for both the product and installation." (T.404) Gundle's liability under the warranty depends on how many years remain under warranty and "shall in no event exceed the amount of the sale price." (IT.434) The warranty excludes "any liability for consequential damages arising from the loss of . . . product owing to the failure of the material or installation," id.; CCE's Exhibit No. 3, and any liability whatsoever in the event of acts of God, including floods, and "excessive pressure or stress from any source." CCE's Exhibit No. 3; (IT.432). While the material may well outlast the warranty, perhaps by decades, in "geological time," it will inevitably fail. In the short term, too, the integrity of liners like that proposed is highly problematic. Past problems have included "mechanical damage . . . of one form or another such as with the bulldozer, or if somebody drops something." (IT.429) Here, before the first lift of solid waste (which would not include construction or demolition debris) is placed, four feet of sand (stockpiled during excavation) would be piled on top of the disposal cell liner. A bulldozer's gash might not go unnoticed, but small holes along seams can be missed, despite rigorous quality control measures. At the Ocean County landfill in New Jersey, "there was more liquid . . . than would have been true from the calculated moisture vapor transmission data," (IT.427) but Gundle's chemist testified this might have been "condensation on the soils on the back side of the liner." Id. Leachate Collection Embedded within the sand layer, in the crotch of the V, six-inch, perforated, schedule 80 PVC pipe, wrapped in filter cloth, is designed to collect leachate. The top of the pipe is to be eight inches above the liner, according to the leachate underdrain detail on sheet 15 of WACOC's Exhibit No. One pipe running the length of cell 3 and another running through cells 1 and 2 would move leachate to the leachate trunk line, another (intact) PVC pipe which would, in turn, empty into a paved flume in the leachate collection pond. The pond has been sized to contain the amount of leachate WACOC's consultants originally predicted a 25 year return 24-hour storm would generate, together with the rainfall such an event would deposit in the leachate collection pond, and still leave a foot of freeboard. "You have room below that major storm elevation that holds 60 to 70,000 cubic feet of leachate." I.T. 127. Except for the flume, the leachate pond is to be lined, like the disposal cells, with high density polyethylene. In the leachate collection pond, only 18 inches of sand would overlie the synthetic liner. From time to time, leachate would be pumped from the pond into tank trucks for removal to the Garnier wastewater treatment plant, which has a capacity of 6,500,000 gallons per day. Garnier is specifically permitted to receive only domestic wastewater, but the permit does not forbid industrial wastewater, and the plant now accepts leachate from the Wright landfill. DER has not classified landfill leachate either as domestic or as industrial wastewater. Before accepting it for treatment, the plant might require pretreatment of the leachate, whether on account of its anticipated acidity or for other reasons. If leachate causes sludge from Garnier to exceed standards for heavy metals, the sludge can be deposited in a Class 1 landfill like the one proposed here. WACOC has not yet entered into a contract with Garnier's operator for treatment of leachate. Not until leachate is removed from the leachate collection pond are pumps to be employed. Leachate would have to accumulate on the waste disposal cell liners and enter a pipe, in order to leave the cells. The design specifies perforations along the whole length of leachate collection pipe, around the bottom of the pipe. If the pipes clogged west of the cell walls, leachate could flow through sand and reenter the pipe further downslope. Outside the waste disposal cells, manholes have been planned, to afford access for cleaning the pipes out. The applicant did not demonstrate with calculations that gravity would induce flow through the pipes at a rate sufficient to remove leachate deeper than 12 inches. In the leachate collection pond, which is to be roughly 200 by 500 feet, leachate might attain a depth of several feet, before being pumped into a tank truck. The pond sides are to be lined with high density polyethylene to a height nine feet above the pond bottom. As far as the evidence showed, the depth of leachate in the pond would never fall below 18 inches anywhere on the pond bottom, once leachate began filling the leachate collection pond. Only if leachate were extracted from the sand covering the liner could the leachate head in the pond fall below one foot. The plan is for tank truck operators to place their hoses on "a concrete flume on top of that sand." I.T. 127. Stormwater Management Berms encircling the solid waste disposal cells, together with a series of ditches and culverts, are intended to direct stormwater away from the solid waste to a retention pond for temporary storage and treatment, before discharge offsite. To the extent stormwater which would otherwise flow into solid waste disposal cells can be diverted elsewhere, the volume of leachate can be diminished. The berms also serve to prevent rain falling on solid waste from reaching the stormwater retention pond, or polluting stormwater that does. Lined with relatively impermeable soils, the stormwater retention pond, "a football field wide and two and a half football fields long," (T.201) is designed to be big enough to hold the runoff from a 100 year return storm, leaving two feet of freeboard. In practice, some stormwater would percolate into the ground through unlined ditch bottoms, never reaching the pond. Stormwater that did reach the pond would either evaporate or drain through sidedrains, which are to consist of perforated six-inch PVC pipe, encased in gravel and covered with permeable sand excavated on site. Lining most of the pond's perimeter, this sand would filter water seeping through it from the pond into the side drains. After collecting in an outfall pipe, water draining from the pond would travel 300 or 400 feet, before discharging above grade, near the east branch of Mare Creek. If, as would be likely, sea gull droppings regularly end up in the stormwater retention pond, phosphorous and nitrogen levels in the east branch of Mare Creek and downstream would increase in time. Other Measures Decomposing solid waste produces methane gas. When cell I is completed, vents are to be installed to direct methane gas into the atmosphere above the center of the cell. I.T.140; WACOC's Exhibit No. 1, p.23 and No.9, p.15. "[T]he wind will disperse any gas within the site." I.T.191,221. If sufficient quantities were generated, a gas collection system would be installed. I.T.140. 31 Spotters will try to divert hazardous or infectious waste, and should succeed in the event a hauler tries to dispose of an accurately labelled 55- gallon drum of a hazardous liquid or red-bagged waste from a hospital, but small quantities of gasoline, paint, paint thinners, cleaning fluids and other hazardous materials cannot practically be diverted. At the end of every working day, solid waste is to be covered with a six inch layer of soils from the site. Fences are planned downwind from the working face to collect windblown debris. Closure A landfill is a long-term proposition. Pollutants still leak from Roman landfills dating to 400 A.D. Contemporary landfills and their regulators recognize the importance of capping landfills to minimize infiltration by rainwater (and so production of leachate.) Even though the plans may be revised later, DER requires applicants for landfill construction permits to make plans for closure, before a construction permit is issued. Landfill operators must also make annual contributions to a trust fund to be used to close the landfill and to bear post-closure expenses, which include trucking leachate and monitoring groundwater. WACOC has already established the trust fund and deposited $100. As a condition of operating the landfill over the five years it proposes, WACOC must deposit one fifth of estimated closure and post-closure costs in the trust fund 60 days before beginning to fill, and another fifth annually (30 days after the anniversary date of the initial payment). The cost estimates are subject to revision annually. (I.T. 384, 843-4) Before closing a landfill, the operator must obtain a closure permit. The trust fund is not expected to absorb the costs of cleaning up polluted groundwater, if that should prove necessary. Local governments, which operate many landfills themselves, sometimes step in when problems with privately run landfills develop. ...A leak develops or something that would cost millions of dollars to address it and you don't have the insurance, you're out of business instantly. ...[WACOC's ability] to address a catastrophic situation that could develop with this is limited to how much capital they have. * * * ...[I]f you don't have some insurance, even if its $500,000 deductible,...if the problem occurs, you're gone. And if you don't have the capital to handle it, it will fall back in the taxpayer's lap which is typically what happens... . (II.T. 70-71) As WACOC's proposed finding of fact No. 12 concedes, WACOC's "liabilities are considerably in excess of its assets." Landfill operators are under no obligation to contract for environmental liability insurance, which is not readily available, in any event. WACOC proposes to cap Phase I with clayey sands excavated on site. The clay required to cap Phase I amounts to "ten acres of the surface by four feet deep, or one acre 41 feet deep." (II.T. 36) WACOC proposes to spread this quantity over all three cells, covering them with an 18-inch clayey sand blanket. On top of that, WACOC would place 18 inches of surficial sand and, finally, six inches of topsoil. The sands are readily available on site, but there is no topsoil to speak of. The clayey sand WACOC proposes to use as a foundation for the cap is too permeable to constitute an effective barrier. (B.T. 149,158), but WACOC could mix it with clay from off site or some other agent to render it less conductive of rainwater. The present plans do not call for mixing, however. High Density Polyethylene WACOC is proposing the synthetic liner underneath waste disposal cells and the leachate collection pond not as one component of a composite liner, (T.158) but as "the state of the art," (T.153) in and of itself. But "flaws in liners are a common occurrence." (IT. 698) After a liner has been laid down and covered with sand, "inadvertent cuts and nicks of unexplained origin" (IT.699) can and do occur. However conscientious, laborers hired as "root pickers" may miss an occasional rock. The plans only call for removal of objects larger than a quarter inch. High density polyethylene is a plastic. If laid over stone or other protuberances, "the plastic will flow away from that pressure point and eventually you will have a hole in the plastic." Id. An investigator examining 60 mil high density polyethylene used as landfill liner "found six pin-holes per acre, mostly associated with the seams, [an] average of 9.4 cuts [per acre] of unexplained origin, [and] 110 [perforations attributable to] rock protu[bera]nces per acre." (IT.705) In an EPA sponsored study, a liner manufacturer installed and third parties "did a careful job of inspecting," id., twelve "rather small" (IT.706) waste disposal cells. Eight of the twelve leaked. Even if holes did not let leachate escape, several carcinogenic, teratogenic, and mutagenic organic constituents of municipal waste leachate dissolve in liners like the one WACOC proposes, "diffuse through and are released on the other side." (IT.699) High density polyethylene is practically impervious to water: water vapor can move through it only at a rate of 1 x 10- 13 centimeters per second. But certain hydrophobic substances, including chlorinated hydrocarbons such as trichloroethylene and vinyl chloride, move readily through high density polyethylene, itself a "very hydrophobic material." (T.807) William T. Cooper, a chemistry professor who participated in developing DER's drinking water standards, appearing in this case as a witness for the objectors, testified: [O]ne of the major problems in doing this work [concerning organic pollutants in groundwater] is establishing . . . standards. In other words, we had to pollute water in a well defined way so that our machines would tell us there was a certain amount of pollution in the water. . . . . . . [W]e started using [p]olyethylene tubes into which we would put several different organic molecules for the very reason that these molecules diffuse so readily through the [p]olyethylene tubes that we could control the rate in which we were contaminating water for laboratory purposes. (IT.806) In order to calibrate their instruments, the scientists who developed drinking water standards for Florida relied on polyethylene containers' ability to transmit organic pollutants in solution inside a container to the water outside at a steady, predictable rate. Chemists think of polyethylene "as a condensed liquid . . . . [because] it has the ability to absorb molecules." (T.807) Water and polyethylene do not mix, however, just as oil and water do not; they are said to be immiscible and to form separate phases. When a third substance is dissolved in either of two immiscibles occurring together, the additive's molecules move between the two phases until equilibrium is reached. The concentration in one phase will differ from the concentration in the other, and both concentrations will depend on the amount of the additive introduced (until saturation), but the ratio of the two concentrations (the "distribution ratio" or "partition coefficient") will always be the same, at equilibrium. A chemist in Gundle's employ testified that any "organic solvents in the leachate . . . would tend to float on the aqueous phase." (T.406) But some hydrophobic organics, including trichloroethylene, are denser than water and would not float. (IT.831) Mr. Cadwallader, Gundle's chemist, conceded that organic materials are soluble in water "to a point of saturation, which typically is not very high . . . ." (T.425) The leachate's nonaqueous phase would occur to some extent, perhaps entirely, within the polyethylene liner. In this connection, the objectors' chemists' opinion, which Dr. Brown also shared, has been credited. For the same reasons Mr. Cadwallader "agree[d] that a liner would gain weight when it is immersed in a pure organic solution," (T423) the liner would swell, as a variety of organic pollutants diffused into it from the leachate. Such swelling has been reported in low density polyethylene. WACOC's Exhibit No. 18. With groundwater in contact with the outside of the liner, the organic pollutants with which the liner was swollen would diffuse into the groundwater, until groundwater touching the liner acquired organic pollutants in the same concentrations in which they occurred in the aqueous phase of the leachate standing on the liner. It is even possible that concentrations of certain hydrophobic organics would be higher outside the liner than inside. (IT.818) If indeed a nonaqueous phase floated on top of the leachate, it would serve to replenish the aqueous phase, as hydrophobic organics diffused into the liner to replace those diffusing out of the liner into the groundwater or soils on the other side. (IT.831) Site Hydrogeology Groundwater flow "mirrors the topography of the site." WACOC's Exhibit No. 1, Appendix B, p.6. On the Phase I site, it flows to the north and the northeast, toward the east branch of Mare Creek. At monitoring well 1, the flow is "about a 45-degree angle down and to the east northeast." B.T.119. Lining the disposal cells and the leachate collection pond with high density polyethylene would curtail recharge (and evapotranspiration) under the cells and the pond. The plan is to line the stormwater retention pond with the same clayey sands that fail to hold a water table. B.T.175 Percolation from stormwater ditches or, despite its lining, even from the retention pond might cause slight mounding of the groundwater under those structures. But construction of Phase I would not appreciably alter the general direction of the groundwater flow. To the extent mounding occurs beneath the stormwater retention pond, groundwater table elevations under proposed cell 3 would be higher than they otherwise would have been. Elsewhere, the cell liners should have the effect of lowering groundwater elevations below what they would otherwise have been, ignoring infiltration from stormwater ditches. Any changes may be very slight, since groundwater from recharge areas upslope apparently flows under the site. In February of 1988, piezometers were used to measure water table elevations on the Phase I site. Distance between elevations proposed for liners and the February 1988 water table varied, but were no less than nine feet at any point measured. Based on the February 1988 measurements, the design engineers assumed an unsaturated zone 25 to 30 feet thick. But, on October 11, 1988, the second day of hearing, the same piezometers (B.T. 19) disclosed much higher water table elevations. Near the creek, the water table had risen only 4.92 feet higher than it had been in February, but in the wells closest to cell 1, the October water table exceeded the February elevations by 11.33 and 11.41 feet. (B.T. 40) On October 11, 1988, the water table was "above the bottom of the liner of the proposed landfill in cell two, portions of cell two, a lot of it, portions of cell one and a corner of cell three," (B.T. 44) with "about two feet of water above the proposed liner in the corner of cell two." Id. The levels may have been considerably higher in September. Since periodic measurements have not been taken over the requisite year or two, the seasonal high water table on the Phase I site has not been determined. The height of the groundwater table depends on how quickly rainwater percolates down to the water table to replace groundwater lost to evapotranspirtation or subterranean flow offsite. Groundwater under the Phase I site discharges into the east branch of Mare Creek. The timing as well as the amount of rainfall figure in, because once the soils are saturated, rain runs off instead of infiltrating. Still monthly rainfall is a good indicator of how much water has percolated down to recharge an aquifer. No records of rainfall on the site itself exist, but statistics from sites not far away show that extraordinarily high rainfall in September of 1988 contributed to the groundwater elevations measured on October 11, 1988. At one or more wells on site, the water table dropped another foot between October 18 and October 26, 1988. CCE's Exhibit No. 36. Rainfall data suggest that in most years, "the actual peak high for a water table probably would be towards the end of August." (B.T. 95) At present, the surficial aquifer beneath the proposed landfill site contains potable water. People living in the area draw water from the surficial aquifer for drinking water purposes, in one case from a well only some 30 feet deep. The nearest well to Phase I is 3,000 feet away, on the other side of the east branch of Mare Creek. The surficial aquifer goes all the way down to the Alum Bluff group, 75 feet below ground. Saltwater intrusion threatens in southern Okaloosa County. By 1995, if its growth continues at the present rate, the City of Destin will require another, supplementary water supply. Plans to tap the Floridan in northern Okaloosa County include well fields in the Eglin Air Force Base area and north of Freeport. But the Floridan "won't supply all the future projected needs." (II.T. 16) Desalinization is expensive. Eventually Okaloosa County is "going to have to look further toward the use of surficial water," (II.T. 13) as a public water supply. Leachate Characteristics Leachate from municipal landfills has high biological oxygen demand, high salt content, and significant concentrations of metals and organics. (I.T. 699) Cleaning solvents, oil-based paint, furniture polish, spot removers, xylene, toluene and benzene are among common constituents of municipal waste. Lisa Stewart, who picks up garbage in northern Okaloosa County four days a week, has noticed "containers containing a substance" (II.T.137) bearing such labels as naphtha, methylene chloride, toluol, burnt motor oil, insecticides, fungicides, trichloroethane, oxalic acid, xylol, petroleum distillates, polyglycol ether, plasticizers, sulfuric acid, methanol, ethanol and sodium hydroxide. Scientists have found every chemical DER lists on its "primary or secondary water quality standard numeric list" (I.T. 697) in municipal leachate, as well as "about 20 chemicals that are known to [b]e carcinogenic, mutagenic or teratogenic which are not on that list." Id. At least some of this latter group can be anticipated at the proposed landfill, if it is built. The organic materials degrade only slowly; they have half-lives ranging from 20 to 50 years. (I.T. 698) Biochemical oxygen demand accounts for most of the stench to be expected from leachate standing in the leachate collection pond. The "combination . . . of hazardous waste from small quantity generators and from households we would expect to be somewhere in the range of five to 10,000 tons per year." (T.T.148) In order to predict the amount of leachate to expect, experts on both sides resorted to a mathematical model, known acronymically as HELP, for "Hydrological Evaluation Landfill Program." (T.689) These experts made assumptions about annual rainfall, the permeability of the cap materials which, after their initial excavation and stockpiling are destined to do double duty as a final cover for the landfill, and other factors, in order to calculate the amount of leachate likely to accumulate above the liner. WACOC's consultants calculated a head of 2.4 inches, assuming annual rainfall of 68 inches, and an unrealistically low permeability for the clayey sands under the Phase I site which are to be used for capping the Phase I cells as they attain their design heights of 90 feet above grade. Using WACOC's average vertical conductivity figure for the clayey sands of 6.2 X 10-7, without changing any other assumptions WACOC made in running the HELP model, yields a leachate head of 8.5 inches. Even if it were appropriate to use an average, this figure is low, because the permeability of materials recompacted in a laboratory is ordinarily ten times less than when the same material is compacted in the field. Here compaction "in the field" would occur on top of a mound of garbage. "[T]he system will be spongy." (I.T. 752) The HELP model makes no allowance for cracks in the cap, which are bound to occur, if WACOC closes the landfill as it proposes. As garbage degrades, it settles and sinks. This would cause shear planes or faults in the clayey sand cap, which cannot readily be detected, buried beneath sand, topsoil and vegetation. Estimating conservatively, "we could be dealing with twice as much water as we're calculating from the HELP model due simply to cracks in the facility." (I.T. 692) During those periods when the groundwater table is above the bottom of the disposal cell liners, groundwater infiltration through such imperfections as exist in submerged portions of the liners will increase leachate volume. Ignoring groundwater intrusion, cell 1 alone should produce 5,000 gallons a day of leachate the first year after closure. (I.T. 510-1). The applicant's own revised HELP model calculations put the leachate head at more than eight inches in a year in which rainfall on the site exceeded the annual average at Crestview by only eight percent (68 inches vs. 63 inches). A foot or more of head annually can be expected, taking into account cracks in the clay cap. Water Quality Monitoring WACOC's groundwater monitoring plan calls for a single well south and upgradient of the Phase I site to monitor "background" groundwater conditions, and a series of monitoring wells east and north of the site designed to detect any groundwater contamination the landfill may cause. WACOC's Exhibit No. 9, Sheet 11. Four of these downgradient wells would be placed by the eastern perimeter of the zone of discharge to measure compliance with DER's numeric water quality standards at that edge of the zone. Four other wells are planned within the zone of discharge. In addition, surface waters are to be monitored at seven points, five on the east branch of Mare Creek and two on the west branch, but none further south than the berm separating cell three from cells one and two. WACOC's own employees would take samples, arrange for their analysis and report the results to DER. Among the specified parameters are iron and chloride. As far as the record reveals, testing for sodium in addition would not make for earlier or more reliable leak detection. CCE's Exhibit No. 20. The suggestion that groundwater be tested for calcium assumed montmorillonite in the clayey sands, which the evidence did not show to be present. I.T. 988. According to a DER chemist, however, groundwater samples near landfills should be tested for volatile organic compounds (VOCs) by EPA method 601/602. Since VOCs always appear to be present in landfill leachate and they can be detected in the subparts per billion (ppb) range, the test is a particularly sensitive indicator for the presence of organics in landfill leachate. (CCE's Exhibit No. 20, p.2.) Also among the specified parameters is fecal coliform, which makes any other routine testing for bacteria superfluous. Given the economic consequences for WACOC if a leak is discovered, it might be well to require WACOC to contract with an independent third party to monitor, in the event the landfill is built. Since groundwater flow on site has a vertical as well as a horizontal component, monitoring requires appropriate placement not only of wells, but also of screens. One approach is to cluster wells so that a succession of screens covers the entire thickness of the aquifer. Monitoring well screens should not exceed 15 feet in length, in order to avoid dilution that might render contaminants indetectable. CCE's Exhibit No. 2. But a hydrogeologist with sufficient information could place screens within transmissive zones through which groundwater flowing underneath the disposal cells or the leachate pond is likely to move. B.T. 136 With respect at least to leachate constituents that do not diffuse through liners, monitoring groundwater to detect pollution is more difficult if a landfill is lined than if it is not, because contaminant plumes are larger if they emanate from larger sources. CCE's Exhibit No. 19. Unless monitoring wells were sunk at ten-foot intervals east and north of where leachate is to collect, it would be easy to miss the plume from a small leak, which might be destined to become a large leak. But even the objectors' experts do not "consider that very practical financially." (B.T. 135) Groundwater Pollution Both through imperfections in the synthetic liner and, as regards hydrophobic organic pollutants with low molecular weights, by diffusion directly through even flawless portions of the liner, pollutants in the leachate will escape into the environment, if WACOC builds the landfill it has proposed for Phase I. As far as can be told from the evidence, the groundwater table would never reach the bottom of the leachate collection pond, so that adsorption and diffusion in soils underneath the pond would attenuate the effect of any leakage there, before it could enter the groundwater. But the soils on site have very low adsorption capacity and very low biological activity. I.T.719 Leachate leaving unlined, northwest Florida landfills five feet above the water table have caused serious pollution problems. The evidence showed that the groundwater table would rise above portions of the lined bottoms of all three waste disposal cells, on which leachate will also be standing. This may occur infrequently, would not necessarily happen every year, and would last for only a few weeks and days at a time, but it was the condition that obtained at the time of the hearing, two months later than seasonal high groundwater should normally occur. When it does happen, "it's entirely possible the leachate will be the same concentration as the groundwater in contact with the bottom of the liner." I.T. 701. In any case, carcinogenic, mutagenic or teratogenic agents (I.T. 697), including up to 20 for which DER has not established numeric limits, would occur in the leachate, and some would enter the groundwater, violating the DER "free from" requirement. I.T. 777. Precise concentrations have not been forecast but, at least at times, over the course of the landfill's existence, the leachate would contain certain mutagenic substances for which no safe lower limit has been established. Nor did the evidence give reasonable assurance that violations of DER's numeric standards pertaining to the trichloroethylenes, the tetrachloroethylenes and vinyl chloride would be unlikely outside the zone of discharge. I.T. 771,781-2. It depends in part on the volume or rate at which leachate or these constituents leak. B.T. 94. The evidence showed they will leak at some rate, even where there are no flaws in the liner. In a test involving higher concentrations of trichlorethylene and other organics than are anticipated here, experimenters observed a "flow rate . . . on the order of 125 gallons per acre per day from concentrated organics." I.T. 702. In 27 acres of plastic, flaws are to be expected. Good intentions notwithstanding, the evidence showed holes in the synthetic liner should be anticipated, and taken into account in designing a landfill. The rate at which leachate will leak through these imperfections depends on their number, shape and size; and, as to each, the depth of the leachate above it and the permeability of the medium below it. A circular hole with a diameter of one- sixteenth of an inch will discharge liquid, standing on top of it a foot deep, at the rate of 70 gallons a day, into air, gravel or porous sand. The rate for a similar hole with a diameter of one-eighth of an inch is 192 gallons per day. In the event of a leak above or near an area like the one into which the seep sank in the borrow pit, the soil would not slow the rate of leakage. (I.T. 718) Otherwise, for a given leachate head, the conductivity of the soil (if unsaturated) would determine the leakage rate. "[T]here will be less depth higher up the liner." I.T.760. But where the liner is lowest and the leachate deepest, the liner will lie over the loose sands that occur beneath the clayey sands. Rating tests demonstrated considerable variability in the hydraulic conductivity of all of the sands tested. Piezometer readings on October 18 and 26, 1988, showed how they transmit water as a unit. In eight days the water table (which is only at atmospheric pressure) fell a foot. The clayey sands would not prevent leachate's leaving the waste disposal cells and entering the groundwater, although in some places (where the leachate has less depth), they would slow the rate of leakage. "We could get tens of thousands of gallons [annually] leaking out of a 27-acre site which this is through holes." (I.T. 707) With groundwater in contact with portions of the liners, the leakage rate there would depend on the relative elevations of the groundwater table and the leachate standing on the liners. If the groundwater table were higher, upward pressure might push groundwater into the disposal cells, disminishing or even preventing leachate leakage until the water table fell below the height of the surface of the leachate. But, when that happened, direct discharge of undiluted leachate can be expected, directly to the groundwater, as long as groundwater abutted a flaw in the liner. DER's rules do not apply the numeric standards underneath or within 100 feet of waste disposal cells, which the rules denominate a "zone of discharge." Whether numeric standards are violated at the edge of the zone of discharge depends not only on the leakage rate, but also on where the leak occurs, on the velocity of the groundwater, and on pollutant concentrations in the leachate. Calculations taking all these factors into account have not been done for WACOC's Phase I. But credible expert testimony predicted such violations would eventually occur outside the zone of discharge. I.T.771. Synthetic liners like the one WACOC proposes are usually placed on top of three feet of highly impermeable, mineralogically suitable clay. "A clay liner...will retain organics to a greater extent than a synthetic liner." I.T. 823. Using it as proposed here, where it would come into direct contact with groundwater, does not give reasonable assurance that groundwater pollution will not occur.
Recommendation It is, accordingly, RECOMMENDED: That DER deny WACOC's application for a permit to construct a class I landfill in Okaloosa County. DONE AND ENTERED this 14th day of April, 1989, in Tallahassee, Florida. ROBERT T. BENTON, II Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904)488-9675 Filed with the Clerk of the Division of Administrative Hearings this 14th day of April, 1989. APPENDIX DER's proposed findings of fact Nos. 1, 7, 11, 12, 14, 15, 17, 18, 21, 22 except for the last sentence, which is rejected, 23, 24, 25, 32 except for the last sentence, which is rejected, 38, 45, 46, 48, 49 except for the last sentence, which is rejected, 50, 52, 54, 56 except for the last sentence, which is rejected, 57, 58, 59, 60, 62 except for the sentence "DER has no rule prohibiting contact of the liner with ground water," 63, 65, 66 except for the second clause which is rejected, 67, 69, 72, 73, 78, 79, 80, 81, 83 and 85 have been adopted, in substance, insofar as material. With respect to DER's proposed finding of fact No. 2, the intent to issue is dated April 1, 1988. With respect to DER's proposed finding of fact No. 3, financial feasibility was not demonstrated but is not material under the rules. With respect to DER's proposed findings of fact Nos. 4, 5 and 6, closure cost estimates assume the suitability of the clayey sands on site as a cap, which the weight of the evidence did not establish to be the case. With respect to DER's proposed finding of fact No. 8, the use of a high density polyethylene membrane, without more, to keep hydrophobic organic materials out of abutting groundwater is not proven technology, as far as the evidence showed. With respect to DER's proposed finding of fact No. 9, the rules do not require environmental liability insurance. DER's proposed findings of fact Nos. 10, 19, 20, 26, 35, 37, 44, 55, 61, 71, 74, 75, 77, 82, 86 and 87 are rejected as unsupported by the weight of the evidence, without comment. With respect to DER's proposed finding of fact No. 13, the fact that a synthetic liner separates solid waste from the groundwater does not make it permissible to deposit solid waste in groundwater. While the October readings did not prove that groundwater would rise above the sand in which the leachate will collect to touch the solid waste itself, September's rainfall, the rate at which the water table dropped between October 18 and 26, 1988, and the probability of defects in the liner showed that this was a realistic possibility. With respect to DER's proposed finding of fact No. 16, two percent of the materials disposed of in municipal sanitary landfills are hazardous in a chemical, if not legal, sense. With respect to DER's proposed finding of fact No. 27, the "state of the art" use of high density polyethylene liners is as one component of a composite liner, or even as part of a double liner system, at a hydrogeologically suitable location. This material works well for some purposes and not at all for others. With respect to DER's proposed finding of fact No. 28, there was no showing that any other Florida landfill has been placed so as to come into contact with the groundwater table, or that a synthetic liner has ever been used for a landfill without clay; synthetically lined landfills have only recently been installed in Florida, and detection of leaks from lined landfills is difficult. With respect to DER's proposed finding of fact No. 29, since uncontaminated water is not a pollutant, it is not a permeant of concern. With respect to DER's proposed finding of fact No. 30, the evidence showed that under ideal, test conditions, 8 of 12 liners leaked. Under actual field conditions leaks exceeded 100 per acre. The weight of the evidence makes it unreasonable to conclude that 27 acres of plastic can be laid down in Okaloosa County without any flaws. With respect to DER's proposed finding of fact No. 31, the rate of 192 gallons per day assumed gravel or porous sand which offers essentially the same resistance as air; there is no sandy clay anywhere on site, as far as the evidence showed; more than 18 feet below the surface, where most of the liner is to be laid, there are not even clayey sands, according to WACOC's own expert; the sands that do occur there include loose sands with a permeability greater than 4.9 X 10-4; and include numerous gravel beds; the .00022 gallons per day calculation assumes a hole a quarter as large (half the radius of Dr. Brown's) and ignores horizontal hydraulic conductivity. The fact that the water table dropped a foot in about a week demonstrates that the soils cannot be counted on to contain the leachate underneath flaws in the liner. With respect to DER's proposed findings of fact Nos. 33 and 34, Haxo's results were consistent with their conclusions but explicitly not the only basis for them. Gundle's chemist conceded that hydrophobic organic materials diffuse through high density polyethylene. His opinion that an accumulation in the soils on the other side would equalize concentrations and stop further diffusion did not take into account groundwater abutting the liner, and flushing the soils. The liner absorbs materials; but adsorption does not take place there. Transportation and dispersion need not be known as to "free froms." On page I.T. 777, Dr. Brown testified that diffusion would cause violations of DER's regulations, and this testimony has been credited. With respect to DER's proposed finding of fact No. 36, the swelling of the liner with organic materials is evidence of the diffusion which would result in organic materials' entering the groundwater. With respect to DER's proposed findings of fact Nos. 39 and 41, one inch of leachate in all three cells amounts to 2.25 acre feet, which is more than a "little." Calculations have not been done. With respect to DER's proposed findings of fact Nos. 40 and 42, no allowance was made for cracks in the cap material (which cannot be seen under the vegetation, topsoil and drainage sand layer.) With respect to DER's proposed finding of fact No. 43, a much greater leachate head than within the waste disposal cells may occur depending on where the marker is placed, but hydrophobic organics diffusing through the liner and absorbing in the soils would not be flushed out by groundwater. Except for the last sentence, this proposed finding of fact reflects the weight of the evidence. With respect to DER's proposed finding of fact No. 47, some water will evaporate. With respect to DER's proposed finding of fact No. 51, monitoring wells 8 and 9 are both more than 100 feet from waste disposal areas. The evidence did not show that the monitoring wells "can be expected to detect any contamination." With respect to DER's proposed finding of fact No. 53, DER's experience also suggested testing for volatile organic chemicals. With respect to DER's proposed finding of fact No. 64, the rate of decline also suggests that the water table was as higher elevations than those measured. An applicant must give reasonable assurance that pollution in violation of DER rules will not occur under foreseeable, recurring conditions, including during those times the liner is submerged. With respect to DER's proposed finding of fact No. 65, the proposed finding is adopted, as regards physical tears. With respect to DER's proposed finding of fact No. 68, the proposed finding is adopted, except for leakage through the liner, sometimes directly to groundwater. With respect to DER's proposed finding of fact No. 76, clayey sands were not reported below 18 feet. The difficulty with the groundwater monitoring plan is not the soil characterization, but the number of wells. Because synthetic liners leak, clay mineralogy is important to know. No clay is proposed here, however. With respect to DER's proposed finding of fact No. 84, effective odor control would also entail emptying the leachate pond regularly. WACOC's proposed findings of fact Nos. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 17, 19, 23, 24, 25, 26, 27, 31, 32, 33, 34, 35, 36, 37, 38, 42, 43, 45 50, 58, 61, 64, 66, 70, 71, 72, 75, the first sentence of No. 76, Nos. 78, 79, 80, 81, 82, 83, 85, 86, 87, 88, 90, 92, 93, 94, 96, 97, 99, 100, 101, 102, 103, 104, 105, and the first sentence of 113 have been adopted in substance, insofar as material. With respect to WACOC's proposed finding of fact No. 11, the current tonnage figures appear in the application but their accuracy has not been established by competent evidence. With respect to WACOC's proposed finding of fact No. 12, projected profits depend on various problematic assumptions. With respect to WACOC's proposed finding of fact No. 16, the initial payment was $100. With respect to WACOC's proposed finding of fact No. 18, the cost estimate's reasonableness depends largely on what it would cost to obtain suitable material for a cap, which is not clear. With respect to WACOC's proposed finding of fact No. 20, Scott had independent knowledge of the availability and cost of clay. With respect to WACOC's proposed finding of fact No. 21, the proposed finding accurately reflects the evidence, with the qualification that the layer of dense orange clayey medium to fine sand also contains some coarse sand and fine gravel. With respect to WACOC's proposed finding of fact No. 22, the water table will be below the liner most, but not all, of the time. With respect to WACOC's proposed finding of fact No. 28, see the discussion of DER's proposed finding of fact No. 13. WACOC's proposed findings of fact Nos. 29, 59, 63 and 78 are rejected as contrary to the weight of the evidence, without comment. With respect to WACOC's proposed finding of fact No. 30, hazardous materials will end up in the landfill. With respect to WACOC's proposed finding of fact No. 39, the liner's permeability depends on the permeant. Although it is almost impervious to water, hydrophobic organics move readily through. Clay is a much better liner for those materials. With respect to WACOC's proposed finding of fact No. 40, the Gundle liner by itself is not the state of the art in Florida or anywhere else for municipal sanitary landfills. Proposed conclusions of law are addressed elsewhere. With respect to WACOC's proposed finding of fact No. 41, in the puncture test, the liner withstood a probe exerting 270 ponds of pressure. With respect to WACOC's proposed finding of fact No. 44, there are no clayey sands at the depth proposed for the deeper portions of the waste disposal cell liners, as WACOC's proposed findings of fact Nos. 21 and 27, taken together reflect. With respect to WACOC's proposed finding of fact No. 46, as the manufacturer's representative said, "these liners are a part of the quote unquote state of the art requirement for lined hazardous waste facilities." I.T. 404 (emphasis supplied). The other part is three feet of clay, not sand, underneath. With respect to WACOC's proposed finding of fact No. 47, it depends on the hazardous waste facility. A DER chemist, Mr. Watts, recommended monitoring groundwater near a municipal landfill for volatile organic chemicals. While most municipal garbage is not toxic, leachate from municipal waste is toxic. With respect to WACOC's proposed finding of fact No. 48, the testimony was that the groundwater pollution at Wright landfill was "most likely" from unlined cells. No lined landfill in DER's Northwest District has been built below the groundwater table as far as the evidence showed. With respect to WACOC's proposed finding of fact No. 49, While municipal leachate constituents should not corrode the liner, many can diffuse through it. With respect to WACOC's proposed finding of fact No. 50, some two percent of the waste stream will still be hazardous materials. With respect to WACOC's proposed finding of fact No. 51, some organic materials will sink, rather than float. The sand within which the leachate will accumulate will not extract or absorb organic constituents of the leachate, as far as the evidence showed. With respect to WACOC's proposed finding of fact No. 52, removal is first to the leachate collection pond, also lined with high density polytheylene. With respect to WACOC's proposed finding of fact No. 53, it is wholly improbable that 27 acres of plastic will be installed "without physical flaws." Leakage could exceed 10,000 gallons a year. With respect to WACOC's proposed finding of fact No. 54, not all organic materials diffuse though high density polyethylene. Dr. Haxo's views on WACOC's proposal are not a matter of record. The 448-page EPA Study discusses containment techniques. With respect to WACOC's proposed finding of fact No. 55, the Haxo studies are pertinent although they do not purport to replicate a landfill precisely. In some studies he used concentrations of a single organic that were comparable to the concentrations of organics as a whole in municipal leachate. With respect to WACOC's proposed finding of fact No. 56, direct discharge of leachate into the groundwater, even in small quantities could violate the "free from" standards as could diffusion into the groundwater of carcinogenic, teratogenic or mutagenic, hydrophobic organic materials. With respect to WACOC's proposed finding of fact No. 57, CCE's experts' views about synthetic liners coincided in important respects with those of Gundle's chemist. There is no clayey layer where much of the waste disposal cells' liners are supposed to go. Given the certainty of leakage directly to the groundwater, it is the applicant's burden to do quantative analysis. With respect to WACOC's proposed finding of fact No. 60, there are no data for the site itself. The available data are incomplete. With respect to WACOC's proposed finding of fact No. 62, the February water level is likely to be more common than the October water level. The weight of the evidence did not establish that "under normal conditions the water level should fluctuate no more than five feet." With respect to WACOC's proposed finding of fact No. 64, the proposed finding reflects the evidence except for the final sentence. *** With respect to WACOC's proposed findings of fact Nos. 67, 68 and 69, it is inappropriate to schedule pumpout times at this stage. But it is appropriate to consider above average annual rainfall. Annual leachate production differs from the amount of head at any one time. With respect to WACOC's proposed finding of fact No. 73, the design engineer suggested Roto-Rooter. With respect to WACOC's proposed finding of fact No. 74, intersection should not occur. With respect to WACOC's proposed finding of fact No. 77, municipal landfills are not viewed as hazardous waste generators under federal law. With respect to WACOC's proposed finding of fact No. 82, the second sentence was not proven. With respect to WACOC's proposed finding of fact No. 84, there may be some infiltration. With respect to WACOC's proposed finding of fact No. 89, it would be very expensive to place enough monitoring wells to assure detection of any leaks. Placement of screens should be less of a problem than sinking enough wells. With respect to WACOC's proposed finding of fact No. 91, the Watts memo's suggestion of testing for volatile organic chemicals should give additional assurance. With respect to WACOC's proposed finding of fact No. 95, two percent of the waste stream can be anticipated to consist of hazardous materials. With respect to WACOC's proposed findings of fact Nos. 106, 107, 108 and 109, the proposed clayey sand materials used in the thickness proposed would not create the barrier claimed. Modifications not proposed in the application are possible. With respect to WACOC's proposed findings of fact Nos. 110, 111 and 112, WACOC has not given reasonable assurance that pollution of the groundwater in violation of DER water quality standards would not occur; or that no more than a foot of leachate would stand on the liner. COPIES FURNISHED: Herbert H. Huelsman Anna M. Huelsman 608 Ironwood Drive Fort Walton, FL 32548 Debra Swim, Esquire 1323 Diamond Street Tallahassee, Florida 32301 Bruce A. McDonald, Esquire Post Office Box 887 Mary Esther, Florida 32569 William L. Hyde, Esquire Roberts, Baggett, Laface & Richard Post Office Drawer 1838 Tallahassee, Florida 32302 Chris McGuire, Esquire Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32399-2400 Dale H. Twachtmann, Secretary Department of Environmental Regulation 2600 Blair Stone Road Tallahassee, FL 32399-2400 =================================================================
