The Issue The issue to be determined in this proceeding is whether Angelo's Aggregate Materials, LTD ("Angelo's") is entitled to permits from the Department of Environmental Protection ("Department") to construct and operate a Class I landfill in Pasco County.
Findings Of Fact The Parties The Department is the state agency with the power and duty under chapter 403, Florida Statutes, to review and take action on applications for permits to construct and operate solid waste management facilities, including landfills. Angelo's is a Florida limited partnership authorized to conduct business under the name Angelo's Recycled Materials. Angelo's filed the permit applications which are the subject of this proceeding. Angelo's owns the property on which the proposed landfill would be constructed and operated. Crystal Springs Preserve is a Florida corporation that owns approximately 525 acres in Pasco County, Florida on which is located Crystal Springs, a second magnitude spring that flows into the Hillsborough River. The property is about 10 miles south of Angelo's proposed landfill site. Crystal Springs Preserve's primary business activities are selling spring water for bottling for human consumption and operating an environmental education center that focuses on Crystal Springs and the Hillsborough River. Crystal Springs Preserve hosts approximately 50,000 visitors annually at the environmental education center. Crystal Springs Preserve holds a water use permit which authorizes it to withdraw up to 756,893 gallons of water per day (annual average) from Crystal Springs for production of bottled water. The water is transported about three miles to a water bottling facility operated by Nestlé. Nestlé is a private corporation engaged in the business of bottling and selling spring water. Nestlé purchases spring water from Crystal Springs Preserve. Nestlé's "Zephyrhills Spring Water" brand is composed of approximately 90 percent Crystal Springs water and 10 percent Madison Blue Spring water. The only water treatment applied by Nestlé is filtering the water to remove gross contaminants and passing the water through ultraviolet light or ozone to kill any potential bacteria before bottling. Nestlé has established "norms" for its spring water and would not be able to use the water from Crystal Springs if its chemical composition varied significantly from the norms. WRB is a Florida corporation that owns 1,866 acres in Pasco County known as Boarshead Ranch. Boarshead Ranch is adjacent to the east and south of Angelo’s property and is approximately 3,000 feet from the proposed landfill at its closest point. Boarshead Ranch is currently being used for agricultural, recreational, residential, and conservation purposes, including wildlife management. Nearly all of Boarshead Ranch is subject to a conservation easement held by the Southwest Florida Water Management District (SWFWMD). The conservation easement allows WRB to continue agricultural operations. Numerous agricultural water wells are located on Boarshead Ranch. WRB holds a water use permit which authorizes the withdrawal of 820,000 gallons per day (gpd) (annual average) for a number of uses, including production of agricultural products, animal drinking water, and personal use. The City of Zephyrhills is located in Pasco County and is a municipal corporation. Zephyrhills' water service area encompasses Zephyrhills and portions of Pasco County. Zephyrhills owns, operates, and maintains a water distribution and transmission system of pipes, pump stations, and storage tanks within the City and its service area. Zephyrhills holds a water use permit which authorizes nine potable water supply wells with a combined withdrawal of 2.9 million gallons per day ("mgd") (annual average). Zephyrhills has two new production wells located about two miles southeast of the proposed landfill. The City of Tampa owns and operates the David L. Tippin Water Treatment Plant, the Hillsborough River dam, and the City of Tampa reservoir on the Hillsborough River. Flows from Crystal Springs make up a substantial amount of the water in the Hillsborough River, especially during drought conditions when the spring flow accounts for about 50 percent of the flow. The City of Tampa holds a water use permit which authorizes the withdrawal 82 mgd (annual average). The City of Tampa owns, operates, and maintains a water distribution and transmission system of pipes, pump stations, and storage tanks within the City and its service area. Carl Roth, Marvin Hall, and Louis Potenziano own property in Pasco County near the proposed landfill site. Roth's property is 3.5 miles west of the proposed landfill site; Hall's property is located approximately one mile southwest of the site; and Potenziano's property is 1.6 miles to the south/southeast of the site. Roth, Hall, and Potenziano have water wells on their properties. The record does not establish that John Floyd owns property in the area. Floyd and Associates, Inc., owns about 55 acres in the area and holds a water use permit authorizing the withdrawal of water for agricultural uses. The Stipulated Agreement On March 1, 2010, Angelo's filed with DOAH a "Stipulated Agreement" signed by all parties. The Stipulated Agreement states in relevant part: Angelo's shall provide a final design, revised complete permit application and site investigation (referred to jointly as "Revised Submittal") to DEP with copies to all Parties and DEP shall make a completeness determination prior to this proceeding being set for a new final hearing date. * * * Angelo's shall not revise its permit application or supporting information beyond the Revised Submittal prior to or during the final hearing except in response to issues raised by DEP. It appears that the Aligned Parties did not remember the Stipulated Agreement until the commencement of the final hearing. They did not object before then to any of the evidence which Angelo's had prepared or intended to prepare for hearing on the basis that it violated the terms of the Stipulated Agreement. At the commencement of the hearing, Nestlé argued that the Stipulated Agreement barred Angelo's from revising its application or presenting new support for its project at the final hearing. The Stipulated Agreement is unusual and the necessity for Angelo's to make any concessions to the Aligned Parties in order to obtain their agreement to an abeyance was not explained. Allowing an applicant time to amend a permit application is usually good cause for an abeyance. The Stipulated Agreement allowed Angelo's to continue to respond to issues raised by the Department. Angelo's contends that all of the evidence it presented at the final hearing qualifies as a response to issues raised by the Department. The Proposed Landfill Angelo's applied to construct and operate a Class I landfill with associated buildings and leachate holding tanks. Application No. 22913-001-SC/01 corresponds to the construction permit application and Application No. 22913-001-SO/01 corresponds to the operation permit application. A Class I landfill is a landfill authorized to receive Class I waste, which is solid waste from households and businesses. Class I waste does not include hazardous waste, yard waste, or construction and demolition debris. See Fla. Admin. Code R. 62-701.200(13) and (14). The proposed landfill would be approximately 30 acres in size. It is part of a 1,020-acre parcel owned by Angelo's that is west of County Road 35 and south of Enterprise Road in Pasco County. The site is currently leased for cattle grazing and hay and sod production. There are also spray fields, orange groves, and a pond on the 1,020-acre parcel. Angelo's would construct the landfill by first clearing the 30-acre site. It would then excavate and fill to create the design subgrade or floor of the landfill with slopes required for the liner system. The subgrade would be compacted with a vibratory roller. After the subgrade compaction, the grouting plan would be implemented. The grouting plan calls for grouting 39 subsurface locations on the site that have voids, loose soils, or other unstable characteristics. A liner system would be installed after the grouting is completed and the subgrade is finished. From the bottom upward, the liner system would begin with a 12-inch layer of clay, over which a reinforcement geotextile would be installed, followed by another 12-inch layer of clay. This reinforcement geotextile is in addition to the double liner system required by Department rule. Its purpose is to maintain the integrity of the liner system in the event that a sinkhole occurs beneath the landfill. Installed above the reinforcement geotextile and clay layer would be a 60-millimeter high-density polyethylene ("HDPE") geomembrane, followed by a HDPE drainage net. These last two components comprise the secondary leachate collection system. Above the HDPE drainage net would be the primary leachate collection system, consisting of another 60-millimeter HDPE geomembrane and HDPE drainage net, followed by a geotextile, then a 12-inch sand layer for drainage, and an additional 12-inch sand layer for protection against puncture of the HDPE liner. A 48-inch layer of selected waste, free of items that could puncture the liner, would be the first waste placed over the primary leachate collection system. "Leachate" is "liquid that has passed through or merged from solid waste and may contain soluble, suspended, or miscible materials." See Fla. Admin. Code R. 62-701.200(66). Leachate would be collected through a system of perforated pipes that empty into a sloping trench with a leachate collection pipe. The leachate collection pipe would run down the center of the landfill to the lowest point where a pump would send the collected leachate through a force main 0.25 miles to storage tanks. Five above-ground storage tanks would be installed on a concrete pad with capacity to store 90,000 gallons of leachate. The stored leachate would be periodically transported to an offsite location, such as a wastewater treatment facility, for disposal. Sinkholes and Karst The terms "sinkhole" and "sinkhole activity" are not defined by Department rule, but the statutory definitions in chapter 627, a chapter dealing with insurance coverage for homes and other buildings, are generally consistent with the scientific meanings of these terms. The term "sinkhole" is defined in section 627.706(2)(h) as: a landform created by subsidence of soil, sediment, or rock as underlying strata are dissolved by groundwater. A sinkhole forms by collapse into subterranean voids created by dissolution of limestone or dolostone or by subsidence as these strata are dissolved. The term "sinkhole activity" is defined in section 627.706(2)(i) as: settlement or systematic weakening of the earth supporting the covered building only if the settlement or systematic weakening results from contemporaneous movement or raveling of soils, sediments, or rock materials into subterranean voids created by the effect of water on a limestone or similar rock formation. Sinkholes occur throughout Florida. There have been many reported and confirmed sinkholes in Pasco County. The more common type of sinkhole that has occurred on the Brooksville Ridge is a "cover subsidence" sinkhole, which is caused by voids in the limestone and the downward movement--"raveling"--of overlying soils into the cavity. Eventually, the loss of soils in the raveling zone will propagate upward until the soils at the ground surface also move downward and a depression is formed at the surface. Cover subsidence sinkholes develop slowly and are usually small, less than ten feet in diameter. Less common are "cover collapse" sinkholes, which can form in a matter of days or hours as the result of the collapse of the "roof" of a dissolved cavity in the limestone. These sinkholes are usually large and deep. The occurrence of a sinkhole does not always mean that areas near the sinkhole are unstable. However, the occurrence of a sinkhole is reasonable cause for concern about the stability of nearby areas and a reasonable basis for the Department to require thorough geologic investigations. "Karst" refers to limestone that is undergoing dissolution and it is common in Florida. A sinkhole forms in karst. "Epikarst" is limestone that was weathered while exposed above sea level millions of years ago before being submerged again. It is generally softer and more permeable than unweathered limestone. "Paleokarst" refers to karst that is very old in geologic time. Paleosinks are old sinkhole features in the paleokarst. A paleosink may no longer be unstable because it has been filled in for thousands or millions of years. A "lineament," or a "photolineament," is a relatively straight line seen in the topography or aerial photographs of the ground surface in an area. It might be defined by soil color, sloughs, ponds, wetlands, or other land features that follow a linear path. Lineaments are sometimes, but not always, associated with subsurface fractures in the bedrock where one would expect to also find active karst, sinkholes, and relatively rapid groundwater flow. Even where there is no lineament, there can be fractures in limestone that, when extensive enough, will allow for "fractured," "preferential," or "conduit flow" of groundwater. Fractured flow can occur in a small area or may go on for miles. Springs in Florida are usually associated with fractured flow or conduit flow that allows groundwater to move through the aquifer a long distance relatively rapidly, in weeks rather than decades. Geotechnical Investigation The Department's rules require subsurface conditions to be explored and described, including soil stratigraphy, soft ground, lineaments, and unstable areas, but the rules do not require the application of any particular geologic testing technique. An applicant's testing program is primarily a function of the professional judgment of the applicant’s geologist in cooperation with Department staff. The amount of geological testing done by Angelo's during its initial testing was similar to what was done for recent landfill applications. Angelo's conducted additional testing to respond to Department concerns and to prepare for the final hearing in this case, making the total amount of testing at Angelo's proposed site more extensive than is usual for a proposed landfill. The geologic investigation conducted by Angelo's experts to determine subsurface features, including any sinkholes, employed several technologies. Split Spoon Penetrometer Test (SPT) or SPT borings were drilled with a drill rig that advances a split spoon sampler into the ground with a 140 pound hammer. The hammer is dropped 30 inches and the number of blows required to drive the sampler each successive 12 inches is referred to as the "N" value and indicates soil strength and density. The higher the N value, the denser the soil. When the material is so dense the drill rod cannot (essentially) be hammered deeper, the N value is shown as "R," which stands for "refusal." SPT Bore logs also note any observed "weight of hammer," "weight of rod," or "loss of circulation." These terms describe areas where the drilling encounters very soft material or voids. Weight of rod, for example, means the weight of the drilling rod, by itself, with no hammer blow, was enough to cause the rod to fall deeper through the soil or rock. Cone Penetrometer Test ("CPT") borings were also conducted. CPT borings are relatively shallow, performed with a hand-held rod and special tip that the operator pushes into the ground. The CPT equipment continuously measures and records tip resistance and sleeve resistance as the rod moves downward through soils. It is helpful in some applications, but is less precise in determining soil type, strength, and compressibility than SPT borings and cannot be used to explore deep zones. Ground penetrating radar ("GPR") studies were used. GPR equipment transmits pulses of radio frequency waves into the ground. The manner in which the radio waves are reflected indicates the types of soil and rock encountered. It can also detect cavities and other features that would suggest karst activity. When the GPR identifies geologic features of interest, they can be further investigated with SPT borings. Another investigative tool used by Angelo's was Multiple Electrode Resistivity ("MER"). MER uses a grid of wires and electrodes and the equipment interprets the resistivity of electrical signals transmitted through the subsurface. MER data can be displayed in a two dimensional or three dimensional format, depending on the software program that is used to process the data. Like GPR, MER is useful for indentifying geologic features of interest that can be further explored with SPT borings. However, GPR generally has good resolution only near the ground surface, while MER has good resolution to a depth of 100 feet. The Regional Geology The proposed site is in a geologic transition zone on the eastern flank of a regional, geological feature known as the Brooksville Ridge. It is a transition zone for both the Suwannee Limestone and Hawthorn Group. The Brooksville Ridge was formed when it was part of the coastline. In its geologic past, the Brooksville Ridge experienced sea level changes, weathering, erosion of sediments, and beach reworking. The general layering of geologic features on the Brooksville Ridge, from the top down, begins with topsoil and a layer of sand. Under the sand layer is the Hawthorn Group, an older geologic layer consisting of a heterogeneous mix of limestone, clays, and sands which generally range in depth from slightly under 60 feet to 80 feet or more. It was formed by river and wind erosion, flushing, and re-deposition in a beach dune environment. Below the Hawthorn Group is the Suwannee Limestone Formation, which is present throughout eastern Pasco County. The upper surface of the Suwannee Limestone Formation is undulating, due to a gradual chemical weathering of its upper surface, representing a "paleokarst environment." Underlying the Suwannee Limestone Formation is the Ocala Limestone Formation. It extends throughout most of Florida. It is composed of nearly pure limestone and is considered the Floridan Aquifer. It extends across the site’s subsurface. Angelo's used the Florida Geologic Survey's data base to determine there are six sinkholes within five miles of the proposed landfill. A seventh sinkhole, not in the data base, is the 15- foot sinkhole at the Angelo's Enterprise Road Facility landfill, a Class III landfill (yard waste and construction and demolition debris) about a mile northwest of the proposed site. Angelo's contends that the sinkhole at its Class III landfill was "induced" during construction of the facility by the diversion of stormwater runoff to an area where overburden had been removed. The average diameter of the seven sinkholes is 11.9 feet. The Geology of the Proposed Site Rule 62-701.410(2)(c) requires a geotechnical site investigation and report, which shall: Explore and describe subsurface conditions including soil stratigraphy and ground water table conditions; Explore and address the presence of muck, previously filled areas, soft ground, lineaments, and sinkholes; Evaluate and address fault areas, seismic impact zones, and unstable areas as described in 40 C.F.R. 258.13, 258.14 and 258.15; Include estimates of the average and maximum high ground water table across the site; and Include a foundation analysis to determine the ability of the foundation to support the loads and stresses imposed by the landfill. It may include geotechnical measures necessary to modify the foundation to accommodate the imposed loads and stresses. The foundation shall be analyzed for short-term, end of construction, and long-term stability and settlement conditions. Considering the existing or proposed subgrade conditions and the landfill geometry, analysis shall include: Foundation bearing capacity; Subgrade settlements, both total and differential; and Subgrade slope stability. Angelo's conducted a geotechnical site investigation, but it was not adequate, as discussed below and in sections I. and J. The proposed landfill site is geologically complex, having features that are discontinuous horizontally and vertically. The site has karst features or areas where the limestone has dissolved. There is a clay layer in some areas, but it is not continuous and its depth and thickness vary. There are deposits of hard and soft sands at various depths. There are pinnacles of limestone surrounded by softer materials. Photographs from a quarry called the Vulcan Mine, located on the western flank of the Brooksville Ridge, show exposed features in the top 20 to 30 feet of the Suwannee Limestone in the region. The features at the Vulcan Mine are roughly similar to features at the Angelo's site. There are a number of shallow depressions on the surface of the ground on the Angelo's site. The origin and significance of these depressions was a matter of dispute. The Aligned Parties believe they represent sinkhole activity, but the evidence presented did not rise to the level of proof. However, Angelo's did not prove they were unassociated with geotechnical issues that could affect the proposed landfill. Angelo's offered no reasonable explanation for the depressions. Determining the exact cause of the depressions may not be possible even with more extensive investigation, but it was Angelo's responsibility as the permit applicant, pursuant to rule 62-701.410(2)(c), to make a greater effort to account for them. Angelo's initial permit application identified two intersecting lineaments on Angelo's property, based on aligned lowlands, enclosed valleys, and ponds. Angelo's contends the lineaments do not reflect an unstable subsurface or fractured limestone. The Aligned Parties contend that the lineaments are regional features and reflect fractures in the bedrock. They also contend that the onsite pond, which is located along the lineament, is an old sinkhole. The Aligned Parties did not prove the proposed landfill site is above an area of fractured bedrock, but the evidence presented by Angelo's was incomplete and insufficient to show there are no fractures. The limestone on the site was not adequately investigated for voids and fractures. Angelo's did not refute the possibility that the lineaments reflect a significant subsurface feature that could affect both site stability and groundwater movement. The Regional and Local Hydrogeology Rule 62-701.410(1) requires a hydrogeological investigation and site report, which shall: Define the landfill site geology and hydrology and its relationship to the local and regional hydrogeologic patterns including: Direction and rate of ground water and surface water flow, including seasonal variations; Background quality of ground water and surface water; Any on site hydraulic connections between aquifers; For all confining layers, semi-confining layers, and all aquifers below the landfill site that may be affected by the landfill, the porosity or effective porosity, horizontal and vertical permeabilities, and the depth to and lithology of the layers and aquifers; and Topography, soil types and characteristics, and surface water drainage systems of the site and surrounding the site. Include an inventory of all the public and private water wells within a one-mile radius of the proposed landfill site. The inventory shall include, where available: The approximate elevation of the top of the well casing and the depth of each well; The name of the owner, the age and usage of each well, and the estimated daily pumpage; and The stratigraphic unit screened, well construction technique, and static water levels of each well. Identify and locate any existing contaminated areas on the landfill site. Include a map showing the locations of all potable wells within 500 feet of the waste storage and disposal areas to demonstrate compliance with paragraph 62- 701.300(2)(b), F.A.C. Angelo's conducted a hydrogeological investigation, but it was not adequate, as discussed below. Angelo's and the Aligned Parties disputed the hydrogeological characteristics of the proposed landfill site and region. The principal disputes related to the direction and velocity of groundwater flow. Angelo's contends that groundwater flows from the landfill site to the west, making the proposed landfill site part of the Withlacoochee River groundwater basin. The Aligned Parties contend that groundwater flows south toward Crystal Springs and, therefore, the site is within the "springshed" of Crystal Springs. A United States Geological Survey map of the Crystal Springs springshed shows Angelo's proposed landfill site within the springshed. A springshed study done for SWFWMD also indicates the site is within the Crystal Springs springshed, but the District has not always been consistent in its statements about the groundwater basin boundaries in this area. A water chemistry analysis of the groundwater in the area of Angelo's proposed landfill indicates that the site is an area of higher recharge and within the Crystal Springs springshed. The springshed boundary can shift, depending on rainfall. Angelo's hydrogeological evidence was not sufficient to refute the reasonable possibility that the proposed landfill site is within the Crystal Springs springshed. Therefore, the Department's determination whether Angelo's has provided reasonable assurances must account for the threat of contamination to Crystal Springs and the other public and private water supply sources to the south. There are no creeks or streams and only a few lakes in the area between Crystal Springs and the Angelo's site. The absence of surface runoff features indicates it is an area of high recharge to the groundwater. Crystal Springs is in an area of conduit flow. The hydrologic investigation conducted by Angelo's was not thorough enough to characterize surficial aquifer flow and flow between aquifers. The preponderance of the evidence shows more groundwater recharge to the Floridan Aquifer in the area than estimated by Angelo's. Angelo's hydrogeological investigation was inadequate to refute the possibility of fractured flow or rapid groundwater movement at the proposed landfill site. Angelo's contends there is a continuous clay confining layer that would prevent contamination from moving into deep zones, but the preponderance of the evidence shows discontinuity in the clay and large variations in thickness and depth. The landfill's impermeable liner will impede water movement downward from the landfill, but groundwater will still recharge from outside the landfill to carry any contaminants deeper. If fractured flow or conduit flow extends south from the proposed landfill site, any leachate released into the groundwater beneath the landfill could travel rapidly toward the water supply sources of the City of Zephyrhills, Crystal Springs, Nestlé, and the City of Tampa. Whether the Proposed Landfill is in an Unstable Area Rule 62-701.200(2)(a) prohibits the storage or disposal of solid waste "[i]n an area where geological formations or other subsurface features will not provide support for the solid waste." However, the Department has adopted by reference a federal regulation, 40 C.F.R. 258.15, which allows a landfill to be constructed in a geologically unstable area if the permit applicant can demonstrate that engineering measures are incorporated into the design to ensure that the integrity of the landfill’s structural components "will not be disrupted." The parties presented evidence on many disputed issues of fact at the final hearing, but most of the case involved two ultimate questions: whether the proposed landfill site is unstable and, if so, whether Angelo's has proposed measures that would eliminate the unstable conditions and make the site suitable for a landfill. as: An "unstable area" is defined in 40 C.F.R. § 258.15 A location that is susceptible to natural or human-induced events or forces capable of impairing the integrity of some or all of the landfill structural components responsible for preventing releases from a landfill. Unstable areas can include poor foundation conditions, areas susceptible to mass movements, and Karst terrains. There is overwhelming evidence that the proposed landfill site is an unstable area. A considerable amount of evidence presented by Angelo's supports this finding. For example, Angelo's experts agreed there are loose soils, evidence of raveling, and sinkhole activity. These conditions make the site susceptible to natural or human-induced events or forces capable of impairing the integrity of some or all of the landfill structural components responsible for preventing releases from the proposed landfill. The Department's landfill permitting staff requested a sinkhole risk assessment from the Florida Geologic Survey ("FGS"). The State Geologist and Director of the FGS, Dr. Jonathan Arthur, believes the potential for sinkhole formation at the proposed site is moderately high to high. That potential is consistent with the characterization of the area as unstable. Whether the Proposed Engineering Measures Are Adequate Because the site is unstable, Angelo’s must demonstrate that engineering measures have been incorporated into the landfill's design to ensure that the integrity of its structural components will not be disrupted. See 40 C.F.R. § 258.15(a). The engineering measures proposed by Angelo's are discussed below. Because it was found that Angelo's hydrogeological and geotechnical investigations were not sufficient to characterize all potentially unstable features of the subsurface, it was not demonstrated that the proposed engineering measures would overcome the instability and make the site suitable for a landfill. Roller Compaction Angelo's would use roller compaction on the graded floor of the landfill to compact the soils to a depth of about five feet and eliminate any voids within that depth. The Aligned Parties did not contradict Angelo's evidence that its proposed roller compaction will be done in a manner exceeding what the Department usually requires as far as roller force and the number of roller "passes." However, roller compaction will not affect deep voids. Liner System In order to ensure that the landfill’s liner system components will not be disrupted in the event of a sinkhole, Angelo’s proposes to include the reinforcement geotextile discussed above. The Department previously approved the use of geotextile reinforcement, combined with grouting, to demonstrate site stability for the Hernando County Northwest Landfill, which had a comparable risk of sinkhole formation according to the Department. The reinforcement geotextile can span a 15-foot diameter sinkhole without failure. As found above, the average diameter of the seven sinkholes within five miles of the proposed landfill is 11.9 feet. Angelo's proved that the proposed liner system meets all applicable criteria, except the requirement of rule 62- 701.400(3)(a) that the liner be installed upon a geologically stable base. Grouting Plan Angelo's grouting plan would be implemented to fill voids and stabilize areas of loose or weak material. The grouting plan was first designed to grout all locations where there was a Weight of Hammer, Weight of Rod, Loss of Circulation, or loose sands, as indicated by a low blow count. Angelo's revised the grout plan to include several more areas of concern identified later, for a total of 39 locations. Each grout location would have seven grout points, one in the center and six others equally-spaced on a ten-foot radius from the center. If more than ten cubic yards of grout is needed, additional grout points further outward would be injected until the void or loose soils are filled or stabilized. Although Angelo's proposes to grout every boring of concern, that still ties the integrity of the grouting plan to the thoroughness of the borings. The geologic evidence indicates that there are unstable areas which the grouting plan does not address. The Aligned Parties' MER analysis was persuasive in identifying potential areas of instability that were omitted from Angelo's investigation and from its grouting plan. There are other unstable areas existing on the site that should be grouted or otherwise engineered to provide support for the landfill. The grouting plan does not provide reasonable assurance that the integrity of the structural components of the landfill will not be disturbed. Other Issues Raised by the Aligned Parties The Aligned Parties raise a number of other issues, some of which begin with the assumption that the site is unstable and a large sinkhole would form at the landfill. This sometimes mixes issues inappropriately. It has been found that Angelo's did not provide reasonable assurance that the site will support the proposed landfill, but other project elements must be reviewed on their own merits where possible, assuming the site was engineered for stability. Leachate Collection System There is a single leachate collection trench in the center of the two landfill cells, which makes the landfill operate much like a single cell. The two halves of the cell slope toward the center, so that leachate will drain to the leachate collection trench, and the entire landfill slopes to the west, so that the trench will drain to a sump from which the leachate is pumped to storage tanks. At full capacity, the landfill will generate about 40,000 gallons of leachate per day. Careful cutting and grading of the earth is necessary to create the slopes that are essential to the proper functioning of the project’s leachate collection system. Settlement analyses are necessary to assure that the slopes are maintained. Rule 62-701.410(2)(e) requires a foundation analysis which must include a study of "subgrade settlements, both total and differential." "Total settlement" refers to the overall settlement of a landfill after construction and the loading of solid waste. "Differential settlement" compares settlement at two different points. Angelo's did not meet its burden to provide reasonable assurance on this point. The settlement analysis conducted by Angelo's was amended two or three times during the course of the final hearing to account for computational errors and other issues raised by the Aligned Parties. The analysis never came completely into focus. The final analysis was not signed and sealed by a professional engineer. The settlement analysis is dependent on the geologic analysis, which is inadequate. Without adequate settlement and geologic analyses, it cannot be determined that leachate collection would meet applicable criteria. Storage Tanks The Aligned Parties contend that the leachate storage tanks cannot be supported by the site. Because it was found that Angelo's geologic investigation was not adequate to identify all unstable areas, it is also found that Angelo's failed to provide reasonable assurance that the site would support the leachate storage tanks. In all other respects, the Aligned Parties failed to refute Angelo's demonstration that the storage tanks would meet applicable criteria. Groundwater Monitoring Plan The Aligned Parties contend that there is an insufficient number of monitor wells proposed by Angelo's to detect a leak from the landfill and the wells are too shallow. Because it was found that Angelo's did not adequately characterize the geology and hydrology of the proposed landfill site, the monitoring plan does not provide reasonable assurance of compliance with applicable criteria. Cell Design The Aligned Parties contend that the "mega-cell" design proposed by Angelo's provides less flexibility to respond to and isolate landfill problems than other landfill designs with smaller cells, and the mega-cell design could generate more leakage. No evidence was presented to show whether Angelo's design was one that had been approved or rejected in the past by the Department. Although it is not the best landfill design, the Aligned Parties did not show that the proposed design violates any permitting criteria. Operation and Closure The evidence presented by the Aligned Parties in support of their issues regarding the operation of the proposed landfill, such as noise, odor, and traffic, was not sufficient to refute Angelo's evidence of compliance with applicable criteria, with one exception: Angelo's has not provided an adequate contingency plan to show how it would respond to a sinkhole or other incident that required the landfill to be shut down and repaired. Assuming the site was engineered to support the landfill, there is nothing about the Closure Plan that the Aligned Parties showed does not meet applicable criteria.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that the Department of Environmental Protection deny Angelo's Permit Application Nos. 22913-001-SC/01 and 22913- 002-SO/01. DONE AND ENTERED this 28th day of June, 2013, in Tallahassee, Leon County, Florida. S BRAM D. E. CANTER Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 28th day of June, 2013. COPIES FURNISHED: Carl Roth, Qualified Representative 8031 Island Drive Port Richey, Florida 34668-6220 Christopher M. Kise, Esquire Foley and Lardner, LLP 106 East College Avenue, Suite 900 Tallahassee, Florida 32301-7732 Wayne E. Flowers, Esquire Lewis, Longman and Walker, P.A. Suite 150 245 Riverside Avenue Jacksonville, Florida 32202-4931 Janice M. McLean, Esquire City of Tampa 7th Floor 315 East Kennedy Boulevard Tampa, Florida 33602-5211 Joseph A. Poblick, Esquire City of Zephyrhills 5335 8th Street Zephyrhills, Florida 33542-4312 Doug Manson, Esquire William Bilenky, Esquire Brian A. Bolves, Esquire Manson Bolves, P.A. 1101 West Swann Avenue Tampa, Florida 33606-2637 Jacob D. Varn, Esquire Linda Loomis Shelley, Esquire Karen A. Brodeen, Esquire Fowler, White, Boggs, P.A. 101 North Monroe Street, Suite 1090 Tallahassee, Florida 32302-1547 David Smolker, Esquire Smolker, Bartlett, Schlosser, Loeb and Hinds, P.A. Suite 200 500 East Kennedy Boulevard Tampa, Florida 33602-4936 Stanley Warden, Esquire Christopher Dale McGuire, Esquire Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 William D. Preston, Esquire William D. Preston, P.A. 4832-A Kerry Forest Parkway Tallahassee, Florida 32309-2272 Herschel T. Vinyard, Jr., Secretary Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 Matthew Z. Leopold, General Counsel Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 Lea Crandall, Agency Clerk Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000
Findings Of Fact As a part of its solid waste disposal program, the City of Naples operates a yard trash compost site adjacent to the Gordon River within the city limits. A fifteen (15) acre site has been leased from a private owner, and the lease requires that the City operate the site in compliance with permitting requirements. The site is intended to received only horticultural yard trash. The City picks up such trash in trucks, and delivers it to the site. Cells, or ditches, have been excavated at the site to a depth of approximately six (6) feet. The trash is deposited into the cells. The cells are excavated to a depth below the ground water level, so the trash is placed directly into the ground water. Although only horticultural yard trash is intended to be disposed of at the site, and although the City attempts to enforce this intention, household garbage including food waste frequently finds its way into the cells. The City has been utilizing this site in this manner for approximately fifteen (15) years, and for at least the past ten (10) years has operated under all required local and state permits. The City is presently operating the site in accordance with a permit issued by the Department of Environmental Regulation on December 31, 1976. The permit expires on January 1, 1980. Sometime in February, 1979, the Department first gave notice to the City that the yard trash compost site was not being operated in conformity with all applicable rules and regulations. Specifically the Department advised the City that the site violated the provisions of Rule 17-7.04(2)(a), Florida Administrative Code, because solid waste was deposited within 200 feet of a natural water body (the Gordon River) and Rule 17-7.04(2)(f), because solid waste was deposited in an area where the water table was less than five (5) feet below the normal ground surface. Rule 17-7.04(2)(f) was modified during the course of this variance application proceeding. The rule now requires that solid waste not be deposited directly into the ground water. The City's site neither conformed with the rule in effect in February, 1979, nor with the present modified rule. The Department and the City agreed that the City could continue to operate the site pending the completion of this proceeding, and, until all present cell excavations are filled. Yard trash compost sites such as that operated by the City do not involve as profound a threat to water quality as do more generalized solid waste disposal sites. Nonetheless placing of large quantities of yard trash at or in water bodies will cause infusion of large quantities of nutrients into the water body. The composting or breaking down of yard trash can take place under either aerobic or anaerobic conditions. Aerobic decomposition takes place where vegetation is exposed to oxygen. Anaerobic decomposition takes place where there is no oxygen. If vegetation is covered by water or soil it will not have oxygen. The materials will only partially decompose through a process called fermentation. Such material, when not fully decomposed, cannot be fully compacted nor reduced in volume as would happen with aerobic decomposition. The system utilized by the City of Naples therefore will result in a springy texture to the area. When decomposition takes place above ground, and vegetation is exposed to oxygen, the Vegetation can break down into its primary elements, resulting in a humus material which can be utilized to condition soil, and which will become part of the soil and stabilize the soil. The City's method of disposal introduces very concentrated amounts of organic substances into the ground water. There is thus a large increase in nitrogen and phosphates in the ground water. Placing such large quantities of organic material into the ground water effectively pollutes the ground water. There is a shallow water aquifer below the surface level at the trash compost site. Below this aquifer is a layer of sand, marl and rock which is not highly permeable. Below this layer lies a second aquifer which is an important source of drinking water in the area. Trash at the compost site under the City's present system is deposited directly into the upper aquifer. This water flows either into the Gordon River adjacent to the site, or more slowly permeates down into the lower aquifer. Placing the organic materials into the ground water thus constitutes a serious source of pollution either to the Gordon River, or to the lower aquifer, or to both. Certainly it serves to profoundly degrade the water quality of the ground water. The City has operated two (2) test wells adjacent to the site for the past eighteen (18) months. Results of samples taken from these test sites are inconclusive, and do not reveal that the City's disposal system has caused any pollution whatsoever. This does not mean, however, that no adverse impact could have been detected, or that none has taken place. The City's test wells were not placed so that they would intercept the flow of ground water from the site. Even if they had been so placed, testing has taken place only every six (6) months, and not in a manner so that any viable conclusions can be reached. The Department has recently installed test wells, and although data from them is not complete, it does reveal a definite flow of pollutants from the site to the test wells. Although the flow of ground water will serve to dilute the pollutants to some degree, it is inevitable that the ground water supply itself will be degraded, and that eventually either the waters of the Gordon River or of the lower aquifer will also be adversely affected. Under its present system the City estimates that it will be able to utilize the compost site for eight more years. The City has contended that operating the site as an above ground compost site would effectively cut in half the time period over which the site could be utilized and would increase the cost of maintaining the site by requiring additional equipment, and eventually requiring additional equipment for the transporting of yard trash to a remote site. These contentions are not supported by the evidence. In the first place the City could save money in operating the site as an above ground composting site because it would not be necessary to make excavations. Furthermore, above ground composting of the materials would result in usable compost which could be sold as land fill. This could constitute a source of revenue, and also open the site for additional usage.
Recommendation Based upon the foregoing Findings of Fact and Conclusions of Law, it is, RECOMMENDED: That a final order be entered granting the variance application filed by the City of Naples with respect to its request to be relieved from the requirements of Rule 17-7.04(2)(a), with conditions imposed as set out in the Department's notice dated June 21, 1979 (DER Exhibit 4). That a final order be entered denying the exemption request filed by the City of Naples with respect to the requirements of Rule 17-7.04(2)(f). RECOMMENDED this 28th day of November, 1979, in Tallahassee, Florida. STEVEN PFEIFFER Assistant Director Division of Administrative Hearings Room 101, Collins Building Tallahassee, Florida 32301 (904) 488-9675 COPIES FURNISHED: David W. Rynders City Attorney City of Naples 735 8th Street South Naples, Florida 33940 Ray Allen Assistant General Counsel Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32301
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 =================================================================
Findings Of Fact The site of the proposed landfill is located near Seffner, Florida, and is northwest of and adjacent to two previously used landfill sites. The proposed site meets all zoning requirements, is not located in the vicinity of an airport so as to be subject to Federal Aviation Administration regulations, and no natural or artificial body of water is located within 200 feet of the site. Inasmuch as the operation of the earlier used landfills created much of the opposition presented at this hearing, a short history of Hillsborough County's landfill operation follows. Hillsborough County opened the old Taylor Road landfill, a tract containing 42 acres, in 1976 and closed it in 1980 when it became full. The old Taylor Road landfill site abuts to the southeast the site being applied for it these proceedings. In 1977, pursuant to a consent decree between the City of Tampa and the Federal Environmental Protection Agency (petitioners' Exhibit 14) , the City of Tampa's incinerator, at which most of the solid waste in Hillsborough County was disposed, was ordered closed by 1979. The City of Tampa engaged consultants to locate an acceptable site for use as a sanitary landfill. In 1978, Hillsborough County, pursuant to an agreement with the City of Tampa (Petitioners' Exhibit 15), assumed the responsibility for solid waste disposal throughout Hillsborough County. Thereafter, it was determined that the best site, from an ecological point of view, was adjacent to the old Taylor Road landfill. Prior to obtaining DER approval to expand this site, the selection of which the County Commission approved in April 1979, time for closing the incinerator was running out and the County was given permission to utilize a 10.6 acre borrow pit, adjacent to and west of the old Taylor Road site, which bad been given to the County by the State Department of Transportation. This approval was given by DER in January 1980. When Hillsborough County assumed the responsibility for waste disposal throughout the County, waste from Temple Terrace and Plant City was added which waste had not been disposed of by the City of Tampa incinerator. The County entered into a contract with Waste Management Inc., a large company specializing in developing and operating waste disposal facilities in many parts of the United States and abroad, to design and operate Hillsborough Heights Sanitary Landfill. The 10.6 acre site would quickly be filled so it was necessary for the County to `reapply to DER for a permit to operate a landfill capable of serving the County until 1984. At that time, modification to the incinerator to comply with clean air standards and operate as an energy recovery unit will be complete and it can be restored to operation. Before that hearing was held the 10.6 acre site filled, and it became necessary for the County to request an emergency permit from DER to operate a landfill on part of the proposed site. Following a hearing on this request, DER issued an order in July 1980, authorizing Hillsborough County to operate a sanitary landfill on 41.5 acres adjacent to the old Taylor Road landfill and the 10.6 acre borrow pit site. By the application here under consideration, as modified by Stipulation and Settlement Agreement, the Petitioners are seeking to expand this 41.5 acre site to 64 acres, thereby adding 22.5 acres to the already approved site. Two thousand tons of solid waste are deposited at this site daily, six days a week. The primary concern respecting a sanitary landfill in the proposed location is the potential for pollution of the Floridan aquifer which underlies this site and the fact that the site is located in a karst area. Unless an impervious surface lies naturally or is constructed between the base of the proposed landfill and the Floridan aquifer, pollution of the aquifer could occur should leachate from the site accumulate and percolate to the aquifer. All of Hillsborough County and much of Florida is underlain by limestone containing karst features. One unfortunate characteristic of the karst formation is the potential for the limestone to dissolve thereby creating cavities into which the surface overburden falls to create a sinkhole. Some liquids, including leachate, will dissolve limestone, thereby creating cavities into which the overburden can fall. This risk is reduced by the thickness of the clay layer over the limerock which inhibits the entry of surface water into the aquifer. The proposed site has a basal clay from five feet to twenty feet thick above the limerock. However, this base clay is not believed to be continuous throughout the site to this minimum thickness due to sand columns, pinnacles and other anomalies that have formed. Petitioners propose to remove some 35 to 45 feet of the overlying sand and intermediate clay down to the base clay to form the pit into which waste will be deposited. The thickness of this base clay over the limerock will then be tested. If at least five feet of clay is not over the limestone, Petitioners will install a minimum of five feet of recompacted clay liner with a density of at least 2.5 - X 10 (to the seventh power) cm/sec. over the bottom of the landfill. Impervious sidewalls around the edges of the landfill will be constructed of either a minimum of five feet of compacted lay or of Hypalon, a synthetic sidewall liner material, in accordance with the Stipulation Agreement. If Hypalon is used, it will be covered with at least two feet of soil before waste is put in the landfill. Petitioners will install a leachate collection system for monitoring and removing, if necessary, leachate that may collect in the bottom of this landfill. Perimeter ditches will be constructed around the bottom of the landfill with the floor of the landfill sloped toward the perimeter ditches. These ditches will contain perforated pipe to conduct leachate to sumps from which the leachate can be removed. Should leachate be generated before the landfill is closed, the leachate will be extracted by pumping; and discharged for absorption by solid waste at the landfill, or trucked to a treatment plant for processing. After each day's operations at this landfill, at least six inches of soil will be placed over the compacted solid waste accepted that day. This should provide reasonable protection for rodents and insects. Final soil coverage to be used as a top liner for this landfill will consist of at least eighteen inches of compacted clayey soil overlain by six inches of loosely compacted soil in order to provide a final cover to minimize infiltration of surface water runoff. The final surface of the landfill will be graded and sloped so rainfall will not puddle on the landfill but run off to the perimeter of the landfill. Thus, when completed, the deposited waste will be encased in a relatively impermeable container on all surfaces. Perimeter ditches will be installed to keep surface waters out of the landfill, and these ditches will be lined with 18 inches of clay to inhibit seepage of water to the landfill from these ditches. The ditches will discharge into holding ponds located south and southwest of the site. Surface waters in this vicinity flow south to southwesterly. Access to the landfill will be controlled by a perimeter fence and entry gate which will be manned during all hours of operation and locked when not manned. Disposal of hazardous or infectious waste will not be allowed. Spotters will be stationed at the dump site to inspect waste entering the site and to detect any hazardous or infectious waste that may reach the landfill. Household wastes will be accepted and these may include small quantities of paints, insecticides and other material that in large quantities would be considered hazardous. Litter will be controlled by temporary fencing or portable litter fences. Bare limestone exposed by excavation will be protected from flow of water from the active landfill area by berms until such time as the limestone is covered by the five feet of compacted base clay. During excavation of the landfill, a geologist or hydrologist will be stationed at the site by the operator of the landfill to determine the nature and extent of earth materials encountered. Anomalies found during excavation will be recorded and reported. This will serve to insure the impervious five feet clay base between the landfill and the limestone. Methane gas control will be provided by the base clay underlying the landfill, the liners to be constructed around the landfill perimeter, and the clay soil cover. Rising gas will vent through the soil cover. If odor problems occur, gas vents will be installed at the high point of the landfill to provide a controlled path for these gases which can then be flared. Groundwater monitoring wells will be installed around the perimeter of the site to detect any leachate which may escape. Wells upgrade of the site will be installed to determined whether metals or other impurities detected in the downgrade monitoring wells come from the landfill or are in the groundwater before it gets to the landfill. The geology of the site is complex. Numerous test borings have been taken in the 218.6 acre tract, sinkholes in the area have been studied, special photographs of the site have been taken to show where changes and moisture in soil occur as well as other geologic features. All available information shows the 64 acre parcel in the southern part of the 218.6 acre site to be the safest in the site from a catastrophic subsidence (sinkhole) Although the Intervenors contend that the site is subject to sinkholes, no credible evidence was presented that this site is more subject to a catastrophic subsidence than is the remainder of Hillsborough County. Competent evidence was presented that a sinkhole is less likely to develop at the proposed 64 acre site than in other areas of Hillsborough County. Intervenors' and the public witnesses' primary complaint and vehement opposition to the granting of the permit here requested stem largely from the manner in which the predecessor landfills in this area have been operated; and rightly so. Infectious waste has been dumped on the site on several occasions; inadequate daily cover has been provided; dogs have roamed the site; birds have been killed by insecticides dumped on the site; papers have blown over the site; surface waters from the site have been pumped outside the site in such a manner that well water could be contaminated; inadequate precautions have been taken to prevent rodent and insect infestation of the site; and unpleasant odors have emanated from the site. These complaints go to conditions that existed in the past; they are not necessarily harbingers of things to come. Hillsborough County's lease law should preclude dogs roaming the site. Strict adherence to the conditions of the permit will eliminate the vast majority of those complaints.
Findings Of Fact Bay County's application to construct a sanitary landfill comprising nearly 80 acres located at the north end of Bay County abutting Washington County near the intersection of S.R. 20 and S.R. 77 was initially submitted to the Department of Environmental Regulation (DER) in November, 1979 (Exhibit 1). The site is surrounded by 400 feet of pine woods which buffer the site from all roads and residences . There are no residences within several hundred yards of the proposed site and the nearest natural body of water is over one-fourth mile from the site. The noise generated by the operation of the landfill will be similar to the noise generated on S.R. 20 and S.R. 77 by passing vehicles. Following conferences between representatives of Bay County and DER and several revisions of the application of May 16, 1980 DER issued its notice of intent to grant the applied-for permit (Exhibit 10) and this proceeding was initiated by Petitioners. The site is located in an area of predominately "Lakeland series" sands which provides little barrier to the percolation of surface or ground waters into the Floridan Aquifer. The site is one of the highest in Bay County and the ground water table is located about 45 feet below the surface in this area. The Floridan aquifer lies some 100 feet below the proposed site and is in direct contract with the ground water table. Accordingly, contamination of the ground water by the proposed landfill would enter into the Floridan Aquifer and degrade the water quality of this aquifer. Additionally escaping leachate could contaminate and degrade the waters of the lakes in the general vicinity of the proposed site. As initially presented the application was denied by DER and recommended for denial by the other state agencies involved, viz. Florida Game and Freshwater Fish Commission and the Northwest Florida Water Management District. The reason for disapproval was that, absent some impervious surface between the aquifer and lakes in the vicinity could occur and was likely. Not only is the site located in a recharge area to the Floridan Aquifer but also in a karst area, in which the topography is marked by sinkholes resulting from the collapse of cavernous limestone under the ground. While the possibility exists that a sinkhole could develop under the proposed landfill this is no more likely than that a sinkhole will develop anywhere else in the northern half of Bay County. As finally proposed the site will be developed into cells some 400' x 500' x 28' deep which are expected to be filled in about six months, covered with a a clayey soil and vegetation replanted over the cell. To keep leachate from escaping to the lakes or aquifer the cells will be lined with a polyvinyl chloride (PVC) liner is 20 mils thick manufactured by B. F. Goodrich. If the liner functions as proposed there will be no escape of leachate and hence no degradation of the waters. Petitioners contend that reasonable assurances have not been given that the PVC liner will adequately perform this function and this was the only real issue presented at the hearing. PVC liners for landfills have been in use for only bout 10 years. However, numerous tests have been conducted and, projecting the deterioration of the PVC observed during the test period to the estimated life of the landfill, leads to an expected liner life well beyond the life of leachate production in the landfill. To give PVC the flexibility and elasticity necessary to lay it over uneven surfaces in sheets, plasticizers are added to the PVC during the manufacturing process. These plasticizers will be released from the PVC if exposed to sunlight for an extended period. However, as proposed for use here, even if the liner was exposed to sunlight for the entire six months the cell will be open, or even for one year, no significant loss of plasticizer will result. Once the cell has been closed, no further dynamic stresses will be placed on the liner. Accordingly, even if the liner lost all of its plasticizer and thereby lost its elasticity and flexibility, it would remain impervious and prevent the pasage of leachate through the liner. To protect the liner from solid waste, trash, and equipment used in the cell to compress the solid waste, the liner will be covered with two feet of sand before any solid waste is placed in the cell. Each night the solid waste dumped that day will be covered with six inches of on-site earth material to deter flies, odors, etc. The two feet of sand cover will protect the liner from puncture by solid waste or equipment. The liner will be placed on a tight slope with a sump provided near the low end of each cell from whence leachate will be pumped from the cell and treated, if necessary. Additionally, vents will be installed to exhaust gases from the cell once it is closed. Monitoring wells will be placed around the land fill to detect if leachate is escaping from the site. These wells would allow detection of escaping leachate before it could progress to the natural water bodies in the general vicinity. The three to one slope proposed for the sides of the landfill will result in some movement of free sand resting on the liner along the sides and could bare the liner. To insure there will be a minimum of two feet of soil between the fill material and the liner the cell will not be filled completely to the side of the liner to fill in the space left between the garbage and the side wall each day when the material dumped that day is covered. Hazardous wastes will not be allowed at the site. The site will be enclosed and have an attendant on duty at all times it is opened to receive solid waste. Public access will be restricted and the attendant on duty will monitor the waste dumped in the cell. Household wastes will be accepted and these may include small quantities of paints, insecticides and other material that in large quantities would be considered hazardous. The sand over the liner, the pumping out of the leachate and overall operation of the landfill are adequate to protect against these small amounts of hazardous materials. Bay County proposes to use an existing disposal site to dump tree and hedge trimmings and may provide a place to dump this woody trash at the proposed site other than in the cells. This will increase the capacity of the cells for solid waste and diminish the possibility of damage to the liner by woody products. The only credible evidence submitted regarding the availability of alternate sited for the proposed landfill was that other areas further south were investigated and were unacceptable because the groundwater table was above the bottom of the proposed cells. This would result in dumping solid waster directly into the water table, and is unaceptable. Petitioner's principal contention is that there has been insufficient experience with PVC liners and the tests that have been conducted were not sufficiently rigorous or extensive to provide assurances that leachate would no escape from the site and contaminate the waters of the State. Petitioners also contend that joining of sections of PVC in field, which will be necessary to cover that bottom of the cells (because a liner large enough to cover the bottom of one cell would be too large and heavy to handle), would also create unacceptable risks in the making of these "field seams". Bay County has arranged for the manufacturer of the PVC to provide personnel to supervise the "field seaming" of the sections of the PVC. These seams do not need to be wrinkle-free and no particular problem with respect to joining sections of PVC liner so as to make it watertight was shown. The tests conducted by the Environmental Protection Agency on PVC liners have been ongoing for nearly ten years. None of these tests to date show any reason to question the effectiveness of a PVC liner properly installed to provide an impermeable barrier to leachate in a sanitary landfill. Petitioners also object to the use of cover material proposed by Bay County when a cell is closed. The soil analysis submitted with the application for the cover proposed does not have a high clay content and is more permeable than would be desired. At the hearing, Bay County officials testified they would use a more impermeable soil to cover the cells. Failure to do so would increase the amount of water from rainfall that would penetrate the cell, thereby increasing the quantity of leachate to be pumped from the sump. This would increase the maintenance cost of the landfill to the point it would be uneconomical not to put a water-repellant cover on the cell when it is closed. No evidence was presented that the formation of additional leachate would increase the risk of leachate escaping from the cell.
Conclusions Having considered the Recommended Order, including the Findings of Fact and Conclusions of Law, Petitioners' Exceptions, and Respondent's Response to Petitioners' Exceptions, it is, therefore: ORDERED that the Hearing Officer's Findings of Fact are adopted; his Conclusions of Law and Recommended Order, to the extent that they are consistent with this Final Order, are adopted; and ORDERED that the permit reflected in the Notice of Intent issued by the Department on May 16, 1980, be issued with the following additional conditions: The applicant shall notify the Department at least on week in advance of when the P.V.C. is to be installed and allow for on-site inspection of its installation by Department personnel. No operation permit will be issued unless the applicant has shown reasonable assurances that the P.V.C. has been properly installed and all other applicable rules of the Department and the applicable Florida Statutes have been complied with. Any operation permit issued shall be for only one cell and no permit for subsequent cells shall be approved in accordance with 2. above without a showing of proper operation for the previous cells. The final cover material for each cell shall be clay, substantially clay or other impermeable material. Any DER permits for this site shall only be valid until 24 months from the date of this order. ORDERED that the country shall submit within thirty days a plan with schedule by which this landfill site will be phased out in 24 months, which shall include selection of alternate acceptable sites or the implementation of a resource recovery program in accordance with 17-7, Part II, Florida Administrative Code. DONE AND ORDERED in Tallahassee, Leon County, Florida, this 22nd day of December, 1980. JACOB D. VARN, Secretary Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32301 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 22nd day of December, 1980. CERTIFICATE OF SERVICE I HEREBY CERTIFY that a true copy of the foregoing "Final Order" has been furnished by United States Mail to Kenneth F. Hoffman, Esquire, Oertel and Laramore, P.A., 646 Lewis State Bank Building, Tallahassee, Florida 32302, Les W. Burke, Esquire, County Attorney, Bay County, Post Office Box 1818, Panama City, Florida 32401, and K.N. Ayers, Hearing Officer, Division of Administrative Hearings, Collins Building, Room 101, Tallahassee, Florida 32301, this 22nd day of December, 1980. DOUGLAS H. MacLAUGHLIN Assistant General Counsel State of Florida Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32301 (904) 488-9730
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. /
Findings Of Fact The Petitioner, Southeast Hillsborough Civic Association, Inc. (SEHCA), is a corporate entity. The majority of its members reside in southeast Hillsborough County in the vicinity of the proposed landfill site. The Respondent, Department of Environmental Regulation (DER), is a state agency charged with regulating the construction and operation of sanitary landfills pursuant to Chapter 403, Florida Statutes, and Chapters 17-3, 17-4, 17-7, 17-9 and 17-25.04(5), Florida Administrative Code. The Respondent, Hillsborough County, Florida, is a political subdivision of the State of Florida. It is a local government entity which serves the areas within its geographical boundaries with traditional types of government services designed to promote and protect the public health, safety and welfare, including the collection and disposal of solid waste. Hillsborough County currently disposes of its solid waste at the Hillsborough Heights Landfill. The Hillsborough Heights Landfill is, however, nearing capacity, and the County is under a mandate, pursuant to a stipulation and settlement agreement executed with DER, to close the Hillsborough Heights Landfill by October 31, 1984. Accordingly, Hillsborough County must put in train the initial phases of construction of a new sanitary landfill in early 1984, once an appropriate site in terms of environmental considerations and other considerations is approved and the appropriate construction and operating permits issued. In August 1981, with a view toward the upcoming necessity to obtain a new sanitary landfill site, Hillsborough County hired the consulting and engineering firm of Camp, Dresser and McKee (CDM) to assist Hillsborough County in studying, identifying, evaluating, and ultimately selecting a new sanitary landfill site. CDM is an engineering consulting firm employing a team of engineers that specialize in the technical aspects of solid waste disposal and management and related landfill design and construction. Ardaman and Associates, Inc. (Ardaman), is an engineering and geotechnical consulting firm with extensive experience in geotechnical investigation and engineering pertinent to the construction of solid waste disposal facilities in Florida and elsewhere in the world. It employs engineers specializing in those functions. CDM and Ardaman, as well as certain Hillsborough County employees, conducted a detailed investigation of the subject site, collecting numerous soil samples and installing 22 monitoring or inspection wells. A multitude of analyses and tests were performed on the soil and water samples taken with the resulting information being used to prepare the designs for the landfill and concomitant data incorporated in the permit applications sub judice. On February 28, 1983, Hillsborough County filed an application for DER permits to construct and operate a solid waste resource recovery and management facility, as well as accompanying permit applications for the dredge and fill activities and storm water discharge facilities involved. After an extensive review process by DER in conjunction with the Hillsborough County Environmental Protection Commission (HCEPC) as well as the Southwest Florida Water Management District (SWFWMD), and after further responses and information in response to DER inquiry were filed by the permit applicant, DER gave notice of its intent to issue the permits to Hillsborough County for the proposed landfill, storm water drainage system, and related dredge and fill activity. The Petitioner, SEHCA, timely requested an administrative hearing concerning its opposition to the issuance of these permits. The proposed landfill will serve all the unincorporated portions of Hillsborough County, as well as the cities of Tampa, Temple Terrace, and Plant City. The current population of the County is approximately 650,000. The population of the County is expected to grow to 950,000 by the year 2000, and 1,375,000 by the year 2020. The landfill is expected to provide for the waste disposal needs of the County for a minimum of 34 to a maximum of 40 years and is proposed to be the County's only landfill until approximately the year 2020. The proposed landfill would occupy approximately 175 acres out of a total of 1,100 acres at the proposed site, such that there is land available at the site that can be used for landfill purposes after the ultimate completion of the landfill at issue herein. Hillsborough County must presently dispose of approximately 2,000 tons of solid waste per day, or approximately 650,000 tons per year. By the year 2015, the County will be required to dispose of in excess of a million tons of solid waste per year. The proposed landfill would receive only nonhazardous, solid waste. It would not accept hazardous or toxic waste, infectious material, hospital waste, liquid waste, septic tank or sewer plant sludges, or similar toxic or hazardous material. The material placed in the landfill would consist of only domestic waste, debris from demolition, construction debris, and other nonhazardous items. In 1987, Hillsborough County and the City of Tampa will both have resource recovery incineration facilities in operation. These facilities will burn approximately 85 percent of the solid waste generated in Hillsborough County and the City of Tampa, with concomitant energy generation. After these resource recovery facilities are placed in operation, the proposed landfill would receive mostly ash from the resource recovery incineration process, as well as some nonburnable waste such as construction debris and demolition debris, and any solid waste which may be generated by the various cities and County which exceeds the capacity of the resource recovery incineration facilities. Thus, since the resource recovery facilities will reduce the volume of the County's solid waste to ash, that volume entering the landfill will be reduced by as much as 90 percent by 1987 or shortly thereafter. The Site The landfill site is in a remote area of southeast Hillsborough County approximately 25 miles from downtown Tampa. The site is two miles northwest of the community of "Picnic," which lies at the intersection of County Road 39 and County Road 672. The nearest paved county road is approximately a half-mile from the site. The site contains approximately 1,100 acres of land within the boundaries. The remainder of the property in excess of the 175 acres used for the proposed landfill will be used for buffer zones, borrow areas, and ancillary facilities as well as land which could be used for an additional landfill facility in the remote future. Hillsborough County also has acquired land to be used as a buffer zone on the southeast corner of the site and land which will be used for the access road to the landfill from County Road 672. The site is located in a large phospate mine, which was started in 1945 and abandoned since 1965. The site is surrounded by a buffer zone consisting of citrus groves, woods, rangeland, and other phosphate mining areas. The orange groves and trees on the southern side of the property create an effective visual barrier between the site and the nearest public road. The closest residence is in excess of 1,000 feet from the site boundary and at a greater distance from the actual landfill site, which lies some distance inside the site boundary. The two closest homes, lying slightly over 1,000 feet and approximately 1,500 feet from the subject property boundaries, both use deep wells in the Floridan Aquifer for potable water. There are only 17 to 20 residences within a mile of the property boundary. Most of these homes are located south of the landfill site along County Road 672. A few additional residences are located a mile or more from the site east along Counts Road 39. The character of the land within several miles of the site is essentially rural, with no large residential subdivisions or commercial development within several miles of the site. The County zoning at the site is "A" and "AA," and is such that a government-owned and operated landfill will be permitted in both of these zoning districts. Landfill Design The design of the landfill includes three major components: a clay liner; a permanent leachate collection system; and a storm water drainage system. The landfill will be built on an unmined clay settling area which was constructed and filled with clay during the former mining operation on the site. Starting in 1945, clay from the phosphate mine was pumped into the settling area together with water obtained by the mining operation from deep wells in the Floridan Aquifer. It was pumped into the clay settling area in a liquid or semi-liquid state and allowed to consolidate and solidify. The clay will provide an appropriate liner for the bottom of the landfill. The site investigation by Ardaman reveals that the clay has a very low permeability (10- 8, or .00000001 cm. per second). The landfill and solid waste deposited therein will be placed only in areas with a minimum thickness of clay liner of at least four feet. The clay liner ranges in thickness at the precise landfill site from a minimum of four feet, up to 21 feet. In comparison, many landfills of acceptable design have a liner of 18 inches to two feet thick. By limiting the landfill to areas where the clay is a minimum of four feet in thickness, the liner's depth and continuity across the landfill is assured in terms of providing protection for groundwater resources from landfill leachate percolation. The clay will prevent leachate (water percolating through the landfill which picks up suspended or dissolved pollutants from the solid waste) from moving out of the landfill. Due to the clay's extremely low permeability there is an insignificant likelihood of any leachate ever escaping through the clay liner. As the construction of the landfill progresses, the clay will settle and further consolidate under the weight of the refuse. The clay will then in effect form a large bowl that will collect leachate. To insure the structural stability of the clay underlying the landfill, the landfill will be built in several phases. A planned sequence of "loading" operations will be carried out to allow the clay to settle in a carefully controlled manner. Ardaman's calculations in evidence establish that the sequence of loading operations will have a large safety factor in that the structural strength of the clay will be greater than necessary to support the weight of the proposed landfill. As the clay consolidates, the water in the clay will be squeezed out, and approximately one-half of the groundwater in the clay at the present time will migrate upward into the leachate collection system. The other 50 percent or so of the water content of the clay will migrate in a downward direction into the surficial groundwater aquifer over a period of the entire 40-year estimated life of the landfill. Since water will be flowing upward from the clay into the leachate collection system, it was undisputed that leachate will not be able to flow downward into the clay during the active life of the landfill because of the positive, upward hydraulic head developed (aside from the impermeable nature of the clay). The leachate will thus be somewhat diluted by the groundwater migrating upward from the clay liner. The leachate will be automatically pumped out of a collection sump as long as the landfill operation is going on and after it is completed. Once the landfilling operations are completed, the landfill will be covered with a clay or "synthetic cap" to prevent any water from entering the landfill and forming leachate in the future after the landfill operation is phased out. Should any leachate enter the clay liner, the clay would act as a filter and partial treatment medium for any liquid that moves through it. For example, clay will remove heavy metals from the leachate such that the fluid emerging ultimately from the bottom of the clay liner would be filtered and partially treated. Thus, the clay liner has very low permeability, is continuous and homogenous, and provides long-term protection for ground and surface waters by preventing any leachate from escaping from the landfill itself. Leachate Collection System A permanent leachate collection system will be used in the operation of the landfill. The system is designed to collect and remove all leachate resulting from percolation of rainfall through the refuse in the landfill before it can percolate to groundwater or move in a lateral direction so as to enter the ground or surface waters of the state. The leachate collection system is based on conservative design assumptions, in that it is designed to collect and remove all water moving up from the clay as the clay liner consolidates, as well as water which has moved downward through the landfill. The water will move into the leachate collection system for the entire 40-year life of the landfill and beyond, but the design parameters for the leachate collection system were based upon the conservative assumption that all the water from the clay-settling area would migrate upward into the leachate collection system during the first ten years of landfill operations. Thus, the calculations upon which the leachate collection system design was predicated included this intentionally inflated prediction about the amount of leachate that will be generated and handled by the system. The amount of leachate actually produced will be substantially less than the amount predicted and the leachate collection system was shown to be based on sound engineering principles. The leachate collection system will be constructed by placing from three to eight feet of sand over the clay liner of the landfill. Trenches two feet wide by two feet deep will then be dug at 200-foot intervals and filled with drainfield rock averaging 1 1/2 inches in diameter. The trenches thus serve as conduits to collect leachate percolating downward through the landfill refuse and drain it to a central sump where the leachate will be pumped out by automatic pumps which operate when the leachate level in the sump reaches a certain height. Backup pumping capacity is provided to avoid overflow of leachate out of the sump and out of the side of the landfill in the event of mechanical breakdown. No leachate is expected to be generated for approximately the first three years of landfill operation since the refuse will act in the nature of a sponge to soak up and retain water entering the landfill for approximately that period of time. Once leachate is produced and collected in the sump, however, it will be pumped into active areas of landfill for recirculation through the landfill. Recirculating leachate was established to be an acceptable form of pretreatment or partial treatment for leachate. Recirculation by percolating leachate back through the refuse in the landfill evaporates some water and causes some of the pollutants to be absorbed by the refuse and soil in the landfill, reducing the total amount of leachate produced which must be removed from the landfill site. In the instant situation, any excess liquid leachate will be pumped out of the sumps, stored in storage tanks and periodically removed and trucked to a county wastewater treatment facility for treatment. Wastewater treatment plants of the secondary treatment mode are capable of adequately treating landfill leachate. The County, however, expressed a willingness to construct a treatment plant at the landfill site for specifically treating leachate from the landfill as an alternative to trucking leachate to a nearby county wastewater treatment plant should this method be more efficacious in preventing landfill leachate causing a deleterious effect on surface waters of the state, either at the landfill site or as a component of effluent from a nonspecifically designed wastewater treatment plant. Storm Water Drainage System In addition to the actual construction permit application for the landfill itself, the county has submitted an application for construction and operation of a storm water drainage system to be used in conjunction with the landfill operation. The DER performance standards for storm water drainage systems are contained in Rule 17-25.04(5), Florida Administrative Code. In effect, such a storm water system must drain and filter runoff from the first one inch of rainfall which falls on a given area within 72 hours. This rule presumes that such a capacity provides reasonable assurances that all applicable DER water quality standards will thus be met. In point of fact, it was established that primary pollutants carried by storm water runoff are flushed from the surface of land and in effect "bound up" in the first one-half inch of rainfall. The proposed storm water system to be used in conjunction with the landfill will meet this performance standard. It was undisputed that the storm water system will indeed collect, detain, and filter the runoff from the first inch of rainfall within 72 hours at the site. The system can handle and filter larger amounts of rainfall and, indeed, when initially installed, the system will filter runoff from the first inch of rainfall occurring within 24 to 36 hours. The storm water drainage system is designed to keep storm water completely separate and physically apart from the landfill itself and thus to prevent leachate from entering the storm water drainage system and vice versa. Rainwater falling on the active landfill itself will move through the landfill vertically, percolate through the refuse and soil, and be collected as leachate in the leachate collection system, with subsequent treatment. Rainfall falling on the surrounding portions of the landfill site will not contact refuse, but, rather, will flow laterally into the storm water drainage system basins, where it will be filtered to remove silt, sediment, and other degradatory materials. Thus, the water entering the storm water system will be rainwater, together with any sediments or other materials nicked up during the course of its drainage over soil and land, with no contact with refuse or related pollutants. The filter medium in the storm water basins will consist of clean sand. The basins will consist of berm walls and at least two feet of clean sand in the bottom as the filter medium. The approximately six basins and drainage swales will serve as a filtration-treatment mode, as well as retention ponds, as a method of storm water treatment. A drainage swale will be used to filter storm water runoff from the access road. This method of storm water filtration and treatment has been shown to be acceptable on other landfills similarly designed and to be the most effective method of filtration and treatment of storm water related to such a landfill operation. The storm water system will thus reduce the potential for pollution in the streams near the site which will receive the filtered storm water after it is ultimately discharged from the basins and retention ponds and swales. Presently, the sand, sediment, clay, and other materials on the site are washed into the streams by storms. After the landfill is constructed and operating, the storm water flowing off the sites will also be filtered and treated in accordance with DER standards. Particulate matter in the storm water runoff will be collected in the basins. Periodic monitoring of the effectiveness of the storm water treatment basins and swales should be performed to ensure the filter medium continues to function effectively as opposed to becoming clogged with silt deposits with resultant overflow of unfiltered storm water over the tops of the basin berms. Water Quality Hillsborough County has conducted a ground and surface water monitoring program to evaluate the existing water quality at the site. This was done through the installation of monitoring wells and concomitant sampling of the water in those wells for water quality parameters in accordance with DER rules. The ground and surface water at the site will be regularly monitored throughout the life of the landfill through the use of monitor wells and other means. Parenthetically, it should be noted that the DER rules require a minimum of three monitor wells to be installed at Class I landfills such as this. Hillsborough County has installed nine monitor wells and performed evaluation and testing of water quality of water samples collected from all nine of those wells. That monitoring program included tests for "indicators," that is, substances that would reveal whether a need for further testing existed. Such tests were performed both at the groundwater monitoring well sites, as well as surface water sampling locations over the entire landfill site. The tests indicated elevated concentrations of total organic carbon in the groundwater. Steve Boyes, an employee of DER, was tendered and accepted as an expert on water quality at phosphate mine sites. He established that the total organic carbon concentrations found in certain groundwater samples came from naturally occurring organic material in the groundwater. Test data supported that conclusion. The wells with elevated levels of total organic carbon collected water from an area in the soil which contained roots and other decomposing organic matter. The organic carbon concentration noted in certain groundwater monitoring wells is a naturally occurring instance. There is no DER water quality standard extant in the rules for total organic carbon. It was not demonstrated to have any deleterious effect on human health, and the installation and operation of the landfill was not shown to cause or enhance any deleterious effect on surface or ground waters of the state (or its citizens) which might be occasioned by the elevated carbon concentrations in groundwater at portions of the site. The phosphate mine which formerly operated at the subject site was known as the Boyette Washer Mine. Initially, in the first years of its operation, it used what is called a "single stage washing process" to separate the phosphate from clay. In this process, the clay, sand, and phosphate were separated simply by hydraulic means, that is, being washed with water from deep wells in the Florida Aquifer. The clay and water was then pumped into a clay- settling area. No chemicals were used for separation of the phosphate in this process. The clay-settling area in which the clay and process water was pumped is now the subject landfill site, the clay being naturally consolidated over time and which will be further consolidated in the construction process of the landfill into the "clay liner." After several years (approximately in 1955), the mine operators built a first-stage flotation plant which used caustic soda, tall oil (fatty acids), and fuel oil to separate the fine clay materials from the phosphate. Tom Holland, a witness for the Petitioner, worked as the mine supervisor for a substantial number of years. He established that most of the clay discharge in the clay-settling area came from the washer process as opposed to the flotation process. The clay-settling area was almost full of clay before the flotation plant began operation. Dr. Garlanger is a former professor at the Massachusetts Institute of Technology and was tendered and accepted as an expert witness on clay waste disposal. He presented a study of water quality data collected from six phosphate mines using the same treatment processes. Clay samples were taken out of these similar or typical phosphate mines for purposes of comparison to the water-clay characteristics of landfill sites. For purposes of that study, the water was squeezed from clay taken from those six representative clay-settling areas. The data from those sites showed that normally the water embodied in the clay meets the Department's primary and secondary drinking water standards. At the proposed landfill site, the water squeezed from clay samples taken from the bottom of the clay-settling area would be the same or better quality than those from other mine locations, since only clay and water were pumped into the settling area for several years before any flotation process was begun at the mine. During that time the only substances going into the bottom of the clay- settling area were clay and drinking water obtained from deep wells in the Florida Aquifer, the primary source of potable drinking water for this portion of the state. Thus, any water migrating downward from the bottom of the clay- settling area, or clay liner, would be uncontaminated water which meets drinking water standards, inasmuch as the high impermeability of the clay liner would prevent pollutants migrating from above in the form of landfill leachate. It would be a better quality than the water collected at the six other mine sites because the samples collected from those clay-settling areas were collected at the top and thus contained the process water from the flotation plants at those mines. Even so, those samples still met DER's primary and secondary drinking water standards. Data collected from this landfill site confirms these findings. Hillsborough County performed water quality analyses for "priority pollutants" on water samples taken from a number of locations around the site. These analyses were designed to identify any pollutant which might have been deposited at the site in the mines' process water, including benzine and kerosene compounds. Hundreds of analyses were performed, and all of the priority pollutant tests were negative. There are no priority pollutants such as benzine or kerosene in the groundwater at the landfill site. The results of this detailed investigation, in evidence, establish that the quality of water in the clay at the site, if squeezed out of the bottom of the clay liner in the present clay-settling area of the old mine, will not contribute to any water quality violations of pertinent rules. To ensure this result, the County has agreed to regularly monitor and test the ground and surface water at the site throughout the life of the landfill. The Petitioner presented no contrary water quality data. Two lay witnesses living near the site have fished in the mine-cut lakes near the landfill site, but which are not involved in the landfill construction and operation. These witnesses have noted a kerosene-like flavor in fish consumed which were caught from these "mine-cut lakes." The cause of that peculiar taste in the fish was not demonstrated, and no evidence was presented to establish that the taste was caused by water from the clay-settling area, which is the only part of the former phosphate mine site involved in this proceeding. Radioactivity In the course of performance of the water quality analyses referred to above, the radioactivity in the groundwater at the site was evaluated. Levels of radium 226 in the filtered water sample were within DER standards. There were, however, elevated levels of gross alpha radiation in two of the test wells. Dr. Emmett Bolch, a professor of radiation-related studies at the University of Florida, and Dr. John Garlanger established that the elevated levels of gross alpha radiation are caused by naturally occurring deposits of radioactive minerals in the "leach zones" on top of the "Bone Valley formation" lying beneath the landfill site. The leach zone is the weathered, fissured surface of this Bone Valley formation, which was weathered during exposure to the atmosphere and elements at remote geologic times. Radioactive minerals were then deposited by alluvial action in the fissured surface, and at later geologic times, the leach zone of the Bone Valley phosphate-bearing formation was covered with sand, silt, and other materials. The Petitioner's expert witness agreed that gross alpha radiation in the groundwater was a naturally occurring phenomenon. Excessive levels of gross alpha radiation do not typically occur in clay-settling areas such as the one where the landfill would be built. Dr. Bolch has substantial experience with the study of radiation levels at phosphate mines throughout Florida. The radiation level in water contained in clay- settling areas is normally well within the applicable Department standards, but, in any event, the radioactive material in clay-settling areas is primarily bound up in the particles and sediment. Once water moves through the ground in clay- settling areas, these radioactive particles are filtered out, thus no significant level of radioactivity could leave the clay-settling area in the groundwater. Although unfiltered samples containing radioactive sediment and particles may demonstrate elevated radioactivity, filtered water samples from clay-settling areas routinely meet DER standards for radiation. These filtered samples of water are more representative of typical drinking water which citizens would obtain from the surficial aquifer, to the extent that they use shallow wells. This thesis by Drs. Bolch and Garlanger is factually established by the water quality data obtained at the instant site. Test Hole 28, one of the County's monitor wells, is located hydrologically down-gradient from the clay- settling area. Water flows from the clay-settling area and passes through Test Hole 28. The water quality in Test Hole 28 is representative of the water quality in the clay-settling area. Nonetheless, the filtered sample collected from Test Hole 28 on October 14, 1983, contained 11.6 pci/liter of gross alpha radiation [see Exhibit 84(c)]. This is well within the DER standard of 15 pci/liter. Thus, the water quality tests for these sites establish that groundwater flowing out of the clay-settling area does not contain elevated levels of gross alpha radiation. On the other hand, high levels of gross alpha were found in Test Hole 22, which lies up-gradient (hydrologically upstream) from the clay-settling area. Since the water from a clay-settling area would not flow in an uphill direction, the high gross alpha content in Test Hole 22 would not have come from the clay-settling area, nor would the higher level of radiation found in that test hole leave the clay-settling area and migrate off the landfill site. It is noteworthy that Test Hole 22 is located on land that has not been mined. The higher level of radiation found in that well is clearly naturally-occurring, and its concentration has not been enhanced by any man-made technological process. Accordingly, it has been established that the water coming from the bottom of the clay liner will meet DER primary and secondary drinking water standards. It will not have elevated levels of radioactivity. Steve Boyes, a DER hydrologist and expert witness on groundwater impacts of the phosphate mining process, established that there is a very low, extremely remote possibility that the landfill will ever have any effect on any drinking water supply. Operation and Maintenance of Landfill Most of the refuse was brought to the landfill in a closed transfer truck from transfer stations set up by the County. The refuse will be inspected at the transfer station before it is loaded on the trucks for transportation to the landfill. At the entrance to the landfill, trucks will be weighed and inspected for chemical or hazardous wastes which cannot be placed in the landfill and then will he directed to the active "working face" of the landfill. Two full-time employee-inspectors will be on duty at the working face to visually inspect the refuse as it is placed on the landfill. The refuse will be spread across the working face and compacted in layers. At the end of the working day, at least six inches of daily cover material will be placed over the refuse. A 12-inch layer of intermediate cover material will be placed over areas not to be used again for several months. After an area of "lift" has been filled to its maximum elevation, a two-foot layer of final, permanent cover will be placed over it. All cover material is available on the site. The daily cover material will consist primarily of sand obtained from the sand tailings pile at the mine site. The sand material was established to be an appropriate daily cover material. It is readily workable and, unlike clay, can be used under adverse weather conditions, such as prolonged rainfall. A sand-clay mix would not be an adequate cover material for daily use; it is not as easily workable, especially when wet, and would create a relatively impermeable cap, which could cause methane to build up beneath it in the landfill. When a new lift or cell is built on the landfill, additional refuse is placed over the preceding daily cover. If sand is used for daily cover, any leachate in the new material can readily pass through the sand and appropriately enter the leachate collection system. If a sand-clay or all-clay mix were used, the leachate would not be able to percolate downward and would form pockets or pools at various levels in the landfill rather than flowing downward into the leachate collection system. These pools of leachate would then break out of the sides of the landfill and possibly pollute surface waters of the state by entry into the storm water system or otherwise. Routine maintenance practices at the landfill will prevent potential problems such as this from developing. Regular frequent inspections will be made around the entire landfill. Movable litter fences will be erected around the working face to retard dispersal of windblown litter. Work crews will regularly pick up any litter on access roads, which problem will largely be prevented initially through the use of covered trucks for transportation of refuse into the landfill. The storm water basin and drainage system must be regularly inspected and maintained to prevent sedimentation clogging. The most likely operational problems typically occurring at such a landfill can largely be prevented by regular inspection and routine maintenance. In this connection, the sanitary engineer's office of the county should maintain a qualified county employee in sanitary landfill operations to oversee the correct operation of the landfill, especially if operation of the landfill is performed by a private contractor or agent. Methane Gas As organic material such as discarded food, grass clippings, etc., decomposes, it produces methane gas. The ash and residue from the resource recovery facilities, once they become operational, will not produce methane gas when deposited in the landfill, since that refuse would already be burned. Since there will be limited amounts of organic solid waste going into the landfill after 1987, the potential for methane gas generation is limited. The daily cover material of sand is highly permeable and will allow methane gas generated to escape to the atmosphere in a harmless fashion. If methane gas is seen to accumulate in an adverse manner inside the landfill, the County will construct vents at appropriate locations on the landfill to allow methane to escape to the atmosphere. As established by Dr. Urone, the Petitioner's own expert on air pollution, the release of methane gas to the atmosphere will not violate any air quality standards or cause human health problems. Odor Odor at landfills is caused by decomposition of organic matter. As in the case of methane gas, the potential for odor generation will be greatly reduced after 1987 because the landfill will only receive limited quantities of unburned organic waste. Potential odor problems at landfills normally are eliminated by appropriate and regular application of the daily cover material over the refuse. If daily cover material is properly used, there will be no noticeable odor beyond the site boundary of the landfill. The applicant should be required, as a condition to a grant of the subject permits, to agree to weekly inspections by both the Hillsborough County Environmental Protection Commission and/or DER to ensure that the landfill is operated in compliance with all the permit conditions, including the condition that odor be unnoticeable beyond the site boundary. If an odor problem develops, the Department should require Hillsborough County to place additional thicknesses of cover material over the solid waste daily, as well as to require a different cover material should the sand cover material prove inappropriate. Dust Control Dust control of the site will be accomplished by water spraying which will be used on access roads, working roads within the landfill itself, and at the working face and all construction areas. The roads on the site will be paved or coated with soil cement to reduce airborne dust. Further, the size of the working face and the borrow area will be kept to a minimum to reduce the potential for airborne dust. Petitioner's expert on air pollution, Dr. Urone, acknowledged that these standard, well-known dust control practices would be sufficient to control airborne dust problems. Airborne Radiation Hillsborough County's radiation expert, Dr. Bolch, calculated the potential radiation caused by dust emissions at the site due to landfill operations. His calculations are based on a "worse case" scenario concerning dust-borne radiation emissions. Radiation from dust emissions at the landfill site will be insignificant. Currently, radon gas is released from the clay- settling area and the sand tailings pile. When the landfill is built, however, the sand and clay obtained from the sand tailings pile and clay in the clay liner will be buried at the bottom of the landfill, except for the sand deposited as daily cover at the current working face. By the burying of the other sand and clay used in the landfill beneath the landfill, the landfill itself will actually create a barrier to prevent radon gas from entering the atmosphere beyond that minute amount present in the daily cover material on an active landfill "lift." Thus, the landfill will actually somewhat reduce the current radon gas emissions naturally occurring at the site. The radon gas was not demonstrated to have any health impact on people working at the site nor on surrounding residents. Nor were existing levels of gamma radiation at the site shown to have any human health impact. Sink Holes The likelihood of a sink hole occurrence at the proposed landfill is very low. Dr. John Garlanger of Ardaman and Associates was accepted without objection as an expert in the area of soil mechanics, clay waste disposal, hydrogeology, and sink hole formation. He is a member of the advisory board for sink hole research at the University of South Florida and has published numerous papers and articles on the remediation of sink holes and their causes. He directed the subsurface hydrogeologic investigation at the landfill site preparatory to filing the permit applications. The overburden soil at the immediate site of the landfill is approximately 22 feet thick, with the phosphate bearing Bone Valley formation underlying that, for a depth of approximately 20 feet. Below that formation is the dense Hawthorne formation of an approximate 105-foot thickness, before the Tampa Limestone strata, which encompasses the Floridan Aquifer, is reached. Because of the great thickness of the Hawthorne formation, which is quite dense and which serves to protect the limestone underlying it from fissure development caused by percolation of ground water (which can ultimately result in sink hole formation), there is a scant likelihood of sink holes developing beneath or in the immediate vicinity of the landfill which could cause a deleterious impact on ground water supplies in the area. The likelihood of a sink hole developing at the proposed site is much lower than in other areas of Hillsborough County to the north, northeast, and northwest. The fact is corroborated by the investigation of Southwest Florida Water Management District which establishes that indeed the site has a low potential for sink hole development (DER Exhibit 5). 2/ Dredge and Fill Activities The proposed dredge and fill activities at the landfill consist of the installation of several culverts for road crossings and similar minor activities. The proposed activities were designed to minimize any potential impacts on state waters. Hillsborough County will use turbidity curtains and other recognized techniques for controlling erosion, sedimentation and other impacts from these activities. In this regard, there is no contiguous connection between the clay-settling area where the landfill will be constructed and any surface water body. A culvert is located passing through a berm or dike on the southwest side of the clay-settling area, but the culvert only discharges water on rare occasions of extreme rainfall. The vegetation near the culvert shows that the rainwater standing on the clay-settling area rarely rises to a level which would cause a discharge from that basin. Similarly, with regard to the lakes on the southeast side of the county's property, which are not involved in the area of the proposed landfill construction and operation, there is no contiguous surface water connection between those lakes and the surface waters located off the site. There is some groundwater seepage from the foot of a dike, but no regular flow over the top of the dike connecting to any surface water body was established. In any event, the proposed activities would have no significant short- or long-term adverse impacts on water quality. The Petitioner relied on the testimony of two expert witnesses, Drs. Carnahan and Urone. Drs. Carnahan and Urone collected no soil, water, or air samples and performed no laboratory tests nor independent calculations or analyses. Dr. Carnahan read the permit application less than a week before the final hearing and visited the site only on the day before his testimony. Dr. Urone never visited the landfill site. Dr. Urone was proffered as an expert in air pollution, but he has no prior experience with the construction and operation of landfills in terms of their air pollution potential. Dr. Urone opines that there could be a potential odor problem at the landfill, but has done no analysis or investigation regarding this potential problem at the subject landfill site, or any other similar landfill, to calculate the amount of potential odor which could be generated. He admittedly is not an expert concerning the use of soil cover to control odors at landfills. He refrained from expressing an opinion about the suitability of the proposed daily, intermediate, and final soil covers. Further, Dr. Urone acknowledges that the methane gas in itself, in the concentrations to be expected from such a landfill, would have no significant impact on air quality. He further admitted he was unable to estimate what would occur at the subject site in terms of airborne dust emissions, but acknowledged that they could be controlled by using well-known dust control techniques such as those found above. Finally, Dr. Urone admits that if the landfill was operated in a manner described in the permit application documents which he reviewed, then there should be no health problem as that is defined by current health standards, nor did he expect any violation of air quality standards. Based on a limited review of the permit application materials, both Drs. Carnahan and Urone expressed only general concerns about the effects of the proposed project. Finally, Dr. Carnahan admitted the thoroughness of the investigation and site evaluation performed by Respondent's expert witnesses in these subject areas and did not dispute the result of their investigations (in evidence). Thus, the testimony of the expert witnesses presented by the County in the above subject areas is accepted.
Recommendation Having considered the foregoing Findings of Fact, Conclusions of Law, the evidence in the record, the candor and demeanor of the witnesses, and the pleadings and arguments of the parties, it is, therefore, RECOMMENDED: That the Department of Environmental Regulation issue permits to Hillsborough County for the construction and operation of the proposed Southeast Hillsborough County landfill and for the attendant storm water drainage system and dredge and fill operations, subject to the following conditions: That the Hillsborough County Environmental Protection Commission and/or DER ensure that the landfill operation is inspected by duly qualified personnel on a weekly basis; That the county have a qualified employee on the site daily to ensure that the landfill and storm water drainage system is being consistently operated properly; That the Department should take background water samples from wells of the residents living within one mile of the site before construction and operation of the landfill commences to establish background data by which to measure the quality and safety of the later landfill operation in terms of any impacts on groundwater quality, which water quality should be periodically monitored in a similar manner thereafter. DONE AND ENTERED this 29th day of December, 1983, at Tallahassee, Florida. P. MICHAEL RUFF Hearing Officer Division of Administrative Hearings Oakland Building 2009 Apalachee Parkway Tallahassee, Florida 32301 (904) 488-9675 FILED with the Clerk of the Division of Administrative Hearings this 30th day of December, 1983. COPIES FURNISHED: Thomas W. Reese, Esquire 123 Eighth Street, North St. Petersburg, Florida 33701 William W. Deane, Esquire Douglas MacLaughlin, Esquire Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32301 Jacob D. Varn, Esquire David S. Dee, Esquire Suite 410, Lewis State Bank Building Post Office Drawer 190 Tallahassee, Florida 32302 Ms. Victoria Tschinkel Secretary Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32301
The Issue The issue is whether Dr. Vigna and his corporation, AVA Hazardous Waste Removal and Disposal, Inc., should be disciplined for the improper disposal of hazardous waste.
Findings Of Fact Lyn-Rand, Inc., was a corporation in the metal fabrication and painting business in Dade County, Florida, during April and May of 1989. The industrial processes used by Lyn-Rand required the use of solvents, cutting oils, and other chemicals. Lyn-Rand employed Courtney Warrenfeltz as its quality control director. Mr. Warrenfeltz had met Dr. Anthony Vigna, who held himself out as a transporter of hazardous waste. Dr. Vigna offered to dispose of 55-gallon drums of waste which had accumulated at the Lyn-Rand facility. Dr. Vigna took samples of the waste, offered to use his federal EPA identification number in connection with the disposal, and do all the paper work involved with the disposal. Mr. Warrenfeltz believed, based upon his conversations with Dr. Vigna, that Dr. Vigna was knowledgable about hazardous waste disposal. Mr. Warrenfeltz made arrangements for Dr. Vigna to pick up nine drums of cutting oils and cleaning solvents on Saturday, April 29, 1989. Dr. Vigna was paid $500 per drum. Those drums had been marked with "x's" on the tops and sides. An employee of Lyn- Rand, Carlos Alayon, had been left instructions to expect Dr. Vigna, and had been given a check to give Dr. Vigna when the drums were picked up. While Dr. Vigna was at the Lyn-Rand site to pick the drums up, he asked Alayon for some black paint which Dr. Vigna used to paint over the labels on the drums. Alayon then helped Dr. Vigna load the drums into a rental truck. Dr. Vigna gave Mr. Alayon no paperwork, such as a manifest, receipt, or shipping papers. Mr. Warrenfeltz never received any paperwork from Mr. Alayon or from Dr. Vigna. The drums Dr. Vigna took from Lyn-Rand were discovered later, Saturday, April 29, 1989, at the business premises of Compliance Technology, Inc., a corporation located in Broward County, which is licensed to act as a broker for hazardous waste. Compliance Technology, Inc., does not, however, act as a transporter of hazardous waste. The employee of Compliance Technology who found the drums near the back loading dock, Mike Webb, was concerned, because their labels had been obliterated with black paint and the only marks on the drums were the "x's." The obliteration of the labels was a cause for concern and the bungs appeared to be leaking around the tops of two of the drums. The drums had been abandoned near a storm drain. The drums were not fenced or secured; if someone had driven into them due to their placement on the ground near the loading dock, the drums could have ruptured and the contents flowed into the storm drain and eventually into the Biscayne Aquifer. Mr. Webb notified the founder of Compliance Technology, Dr. Solon Cole, of the discovery of the drums, and the matter was reported on or about May 1, 1989, to the Broward County Environmental Quality Control Board and the City of Hollywood Police Department. Compliance Technology moved the drums away from the storm drain, barricaded them, and replaced bungs in two of the drums. On or about May 5, 1989, Dr. Cole notified Jeff Tobergte, of the Department of Environmental Regulation office in West Palm Beach, about the drums. Mr. Tobergte went to Compliance Technology the next day, and photographed the drums and sampled their contents. He found that the drums contained various solvents, including methylene chloride, ethylbenzene, toluene, xylene and phenol. The samples had a pH of less than 2 and a flash point of less than 60 degrees centigrade, and therefore were hazardous wastes. Dr. Cole and Mr. Tobergte were able to determine that one of the drums had a label which stated "Spray Iron Phosphatizer and Cleaner" "SC-283" from Novamax Tech in Atlanta, Georgia. After contacting Novamax Tech, Mr. Tobergte learned that SC-283 is an unusual product with only four buyers in Florida, three of them in Dade County, including Lyn-Rand. Mr. Tobergte then drove to all three locations in Dade County which were customers of Novamax Tech, and determined that the most likely source of the drums at Compliance Technology was Lyn-Rand. Mr. Tobergte visited Lyn-Rand on May 8, 1989, and verified that the drums he had photographed were drums which originated at Lyn-Rand. The verification was made by comparing the photographs of the drums left at Compliance Technology with drums at Lyn-Rand which still had labels. Mr. Warrenfeltz recognized the markings on the photos of the drums left at Compliance Technology. The pine needles found on the drums were also significant, since drums were stored in a manner at Lyn-Rand which lead to pine needles falling upon them. Mr. Warrenfeltz told Mr. Tobergte that Lyn-Rand had recently shipped nine drums and recognized the drums from the photographs as those delivered to Dr. Vigna. Lyn-Rand removed the drums from Compliance Technology's property and arranged for their proper disposal. Neither Dr. Anthony Vigna nor AVA Hazardous Waste Removal and Disposal, Inc., has any EPA identification number. After the discovery of the abandoned drums, Mr. Vigna mailed a letter to Compliance Technology on May 10, 1989. The letter was backdated to April 28, 1989, and states in part that it was sent to Dr. Solon Cole, the President of Compliance Technology, "to make you aware of a delivery of nine drums that my driver will be leaving off at your plant." The letter was an after-the-fact attempt by Dr. Vigna to cover himself, which is foiled by the postmark date the letter bears. The content of the letter itself, however, leaves the impression that Dr. Cole and Compliance Technology had no prior awareness of the delivery, which is consistent with the testimony of Dr. Cole, that he had not agreed to any delivery of hazardous waste by Dr. Vigna, because Compliance Technology is not a hazardous waste storage facility, or a transporter of hazardous waste. It had acted as a broker for entities needing to dispose of hazardous waste. Dr. Vigna had visited Compliance Technology, and should have known that it did not store hazardous waste. This after-the-fact letter is also inadequate to constitute a shipping manifest for the hazardous waste delivered by Dr. Vigna, for there is no designation of the source of the material, or explanation of the contents of the drums. It does not approximate the kinds of documents used by legitimate hazardous waste transporters. Perhaps most significantly, Dr. Vigna and his company never contacted Dr. Cole after the drums were dropped at the Compliance Technology site to make arrangements to pay Compliance Technology for handling the drums, as the letter of May 10, 1989, suggests. Dr. Vigna maintains that his delivery of the drums to Compliance Technology was the result of a misunderstanding he had with Dr. Solon Cole. Dr. Vigna maintained that he and Dr. Cole had discussions concerning possible business ventures and he told Dr. Cole that he would be delivering nine drums of cutting oils and cleaning solvents to Compliance Technology, Inc. This testimony is rejected as much less credible than that of Dr. Cole, and because of the rather significant problems with the letter Dr. Vigna mailed on May 10, 1989, which was designed to cover himself, not to notify Compliance Technology of a delivery before the delivery was to be made. There is some slight corroboration of Dr. Vigna's version of the facts which arises from the decision of Compliance Technology not to press criminal charges against Dr. Vigna. The lawyer for Compliance Technology, Arthur Luongo, wrote to the Assistant State Attorney on June 7, 1989, and said: I have a great concern that Compliance Technology may be liable for a malicious prosecution action should they [the employees of Compliance Technology] testify in a criminal proceeding against Mr. Vigna. I see the case as one of simple civil negligence arising out of an honest, though admittedly stupid, mistake. It is the intention of Compliance Technology to become a public corporation within a year, and being the defendant in such a suit could seriously effect the value of their stock. They do, however, intend to recover civil restitution for their time, efforts and energy in locating Mr. Vigna. At best, this letter demonstrates that Compliance Technology had its own reasons for not wanting to press any criminal proceedings, but does not show that Dr. Vigna's actions were proper. Dr. Vigna's position would have been much more persuasive if the letter sent to Compliance Technology had actually been sent near the time it was dated (April 28), or if he had made contact with Dr. Cole to discuss pricing for what Dr. Vigna contends would have been Compliance Technology's efforts in arranging for final disposal of the Lyn-Rand material. It is strange that Dr. Vigna arrived at a price to charge Lyn-Rand without knowing what his price for disposal would be from Compliance Technology. That cost to Dr. Vigna was not relevant if Dr. Vigna intended merely to dump the material. The Department's characterization of the material as abandoned by Dr. Vigna is sustained by the evidence. Dr. Vigna acted as a transporter of hazardous waste. Because the drums were rusted, two bungs had to be replaced, and were leaking, Dr. Vigna is properly regarded as having caused pollution in transporting and leaving them at Compliance Technology. The Department incurred $2,936.58 as costs and expenses in tracing the pollution back to Dr. Vigna and arranging for its proper disposal.
Recommendation It is RECOMMENDED that Dr. Vigna and AVA Hazardous Waste Removal and Disposal, Inc., be found guilty of the violations alleged in the Administrative Complaint, that a final order be entered directing them to refrain from the transportation of hazardous waste unless they first notify the Florida Department of Environmental Regulation, obtain an EPA identification number, demonstrate their financial security, and comply with all standards and procedures required by rules of the Department and applicable federal regulations; it is also RECOMMENDED that they be required, jointly and severally, to reimburse the Department $2,936.58. DONE AND ENTERED in Tallahassee, Leon County, Florida, this 1st day of April 1992. WILLIAM R. DORSEY, JR. 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 1st day of April 1992. APPENDIX TO RECOMMENDED ORDER The Petitioner's proposed findings of fact are addressed as follows: Adopted in Finding 1. Generally adopted in Finding 1. Adopted in Finding 1. Adopted in Findings 1 and 2. Adopted in Finding 2. Adopted in Finding 3. Adopted in Finding 3. Adopted in Finding 3. Adopted in Finding 3. Adopted in Finding 4. Adopted in Finding 4. Adopted in Finding 5. Adopted in Finding 6. Adopted in Finding 7. Adopted in Finding 8. Adopted in Finding 9. Adopted in Finding 10. Adopted in Finding 10. Adopted in Finding 10. Adopted in Finding 11. Adopted in Finding 12. Rejected as redundant of Finding 1. Adopted in Finding 16. The Respondent's proposed findings of fact are addressed as follows: Adopted in Finding 1. Adopted in Finding 3. Adopted in Finding 10. Rejected, see Finding 13. Rejected as unnecessary. Adopted in Finding 14. Adopted in Finding 15. Adopted in Finding 4. Rejected for the reasons stated in Findings 10-15. Rejected, see Finding 11. It is in the nature of a manifest that it needs to be delivered with the material it is designed to accompany. A "manifest" which Dr. Vigna maintained as his own record is no manifest. Rejected because the material was left unsecured near a loading dock. Its location near the storm drain, and the obliteration of the labels lead to the conclusion that the way was it was left did constitute an imminent hazard. Rejected, see Finding 3. Rejected because the leakage from the bungs, while not severe, did present the risk of pollution through contamination of the Biscayne Aquifer if any of the contents of the nine drums had been introduced into the storm drain. Rejected, see Finding 3. COPIES FURNISHED: Agusta P. Posner, Esquire Assistant General Counsel Department of Environmental Regulation 2600 Blair Stone Road Tallahassee, Florida 32399-2400 Steven N. Rosenthal, Esquire Suite 1040 City National Bank Building 25 West Flagler Street Miami, Florida 33130 Carol Browner, Secretary Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32399-2400 Daniel H. Thompson General Counsel Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32399-2400
Findings Of Fact On November 1, 1985, Broward County filed an application with the Department of Environmental Regulation (Department) for a solid waste construction permit, and on August 23, 1985, an application for a dredge and fill permit. The permits would have allowed Broward County to construct a Class I landfill in southwestern Broward County, Florida. On April 19, 1986, the Department gave notice of its intent to issue the requested solid waste permit, and on November 13, 1986, gave notice of its intent to issue the dredge and fill permit. Petitioners filed a timely request for formal hearing on each permit, and their petitions were consolidated for hearing.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED: That the solid waste permit and the dredge and fill permit sought by Broward County be ISSUED. DONE AND ORDERED this 18th day of May, 1987, in Tallahassee, Florida. WILLIAM J. KENDRICK Hearing Officer Division of Administrative Hearings The Oakland Building 2009 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 18th day of May, 1987.
Findings Of Fact On November 16, 1983, Lamar Advertising Company submitted it's applications for permits for outdoor advertising signs to be located on the north side of Interstate Highway 10 in Escambia County Florida, 4.8 miles west of the intersection of I-10 and U.S. Highway 90A facing east, and the other to be located on the west side of I-10, 5.08 miles west of its intersection and U. S. 90A facing east. By letter dated November 28, 1983, the Department rejected these applications, stating: In unpermitable zoning. No commercial business visible. Escambia County, Florida, owns the land where the proposed signs would be located. This parcel contains approximately from the Perdido River, the state bounds almost to County Road 99 on the east, with frontage of I-10 for a distance of approximately one mile * Station is located on the south side of I-10 opposite center of this parcel. In January of 1981, the construction of a sanitary landfill this property, known as the Perdido Landfill. permanent buildings located there, one of which house which includes computer equipment and two commercial scales. Another houses p* equipment. Another is used for employee loc* of supplies. Another is the main office. all office facilities and a major garage automotive and heavy equipment. sanitary landfill is used for disposal of solid waste through escavation and burial. Excavation removes soil which is later used to cover waste placed into the hole created by the NOTE: Page 2 of the Recommended Order on file with DOAH has missing or unreadable text and is therefore not available in this ACCESS document. excavation. When a filling operation has been completed in a particular area, there will be built up heights exceeding the existing grade by as much as 50 feet. Before the landfill activity began, the parcel in question was rolling landscape, mostly in pasture land with some timber. It sloped to the west to the Perdido River. It also sloped from north to south towards the north edge of Interstate 10. Escambia County has approximately thirty pieces of equipment on the Perdido Landfill. This equipment consists of two landfill compactors, two bulldozers, three self-elevating scrapers, a frontend loader, a number of dump trucks, a road grader, a hydraulic backhoe, three tractor trailer rigs, a rented dragline, and numerous cars and pickup trucks. Normally there are five pieces of this equipment in operation on any given day. In addition to the equipment operated by Escambia County, approximately 500 vehicles per day visit the landfill to dump solid waste Monday through Friday, of which about 300 are commercial and 200 are private vehicles. On Saturday approximately 800 to 1,000 vehicles visit the landfill to dump waste. These dumping operations on the Perdido Landfill are taking place about 800 to 1,000 feet from the north right-of-way of I-10. In addition, the County has leased 10 acres on the north boundary of this property to a private company which operates a treatment facility for the processing of septic waste material to produce fertilizer. This facility is located between 2,000 and 3,000 feet from the south boundary of the County property. The County has constructed and maintains an earth barrier approximately 100 feet wide along the south boundary of this property on I-10 to hide the landfill operation from traffic on the interstate. This earth barrier also places the private septic waste facility beyond the line of sight from the interstate. In addition, there are trees and other natural growth along the south boundary of the County property which obscures the site from view. Photographs admitted into evidence show that the activities taking place on the landfill are not clearly visible to traffic moving on I-10. None of the vehicles can be seen except the top portion or boom of a crane. The area is hidden by trees and by the earth barrier except for one or two small openings which reveal the crane's boom. A motorist traveling east on I-10 can see through these openings for approximately one second, and traveling west for only a couple of seconds. Nevertheless, some portion of the equipment being used on the landfill property is visible from the interstate. Most of the area of Escambia County outside of the City of Pensacola is not zoned. There are some areas in the vicinity of the University of West Florida in the northwestern part of the county and on Perdido Key in the southwestern part of the county that are zoned. The area in which the Perdido Landfill is located is not zoned. The Petitioner presented the former County Attorney for Escambia County who testified that the activities conducted at the landfill are compatible with an industrial zoning classification. No further evidence on this point was presented by the Petitioner. The Department presented the Administrator Director for zoning and inspection in Okaloosa County, Florida, who testified that there are four sanitary landfills in Okaloosa County, two located on federal land and two located on county property. Okaloosa County is located about 39 miles east of Escambia County, and the four landfills there are operated and maintained by the County. Okaloosa County has county-wide zoning, and sanitary landfills are classified as public service facilities in agricultural areas predominantly. Under the existing Okaloosa County ordinance,, a landfill would be classified as Agricultural or Agricultural Restricted, regardless of the type of landfill it is. The Department also presented a letter from the Land Use Administrator of the Tallahassee-Leon County Planning Department which indicates that Leon County considers sanitary landfills as "resource development activities" which are permitted as a restricted use only in agricultural zoned areas. This hearsay evidence is not of sufficient quality to support a finding of fact, but it corroborates the evidence presented by the Okaloosa County zoning director, and was admitted for this purpose.
Recommendation Based upon the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that the Department of Transportation enter a Final Order denying the application of Lamar Advertising Company for permits to erect two signs on the north side of I-10 in Escambia County, at points 4.80 miles and 5.08 miles west of U.S. 90A, facing east. THIS Recommended Order entered this 8th day of June, 1984, in Tallahassee, Florida. WILLIAM B. THOMAS Hearing Officer Division of Administrative Hearings The Oakland Building 2009 Apalachee Parkway Tallahassee, Florida 32301 (904)488-9675 Filed with the Clerk of the Division of Administrative Hearings this 8th day of June, 1984. COPIES FURNISHED: ROBERT P. GAINES, ESQUIRE P. O. BOX 12950 PENSACOLA, FLORIDA 32576 VERNON L. WHITTIER, JR., ESQUIRE DEPARTMENT OF TRANSPORTATION HAYDON BURNS BUILDING, M.S. 58 TALLAHASSEE, FLORIDA 32301-8064
