The Issue The issue is whether Respondent Department of Environmental Protection properly determined that Respondent City of Gulf Breeze was entitled to construct a concrete jetty at the mouth of Gilmore Bayou, to widen the mouth of the bayou an additional 35 feet, and to dredge sections of the bayou to a depth of minus eight feet.
Findings Of Fact On March 22, 1996, Gulf Breeze applied for a wetlands resource permit from DEP to allow the following: (a) dredging of the entrance channel to Gilmore Bayou in order to return the channel to its original width and depth; (b) construction of bulkheads on either side of the channel; and (c) construction of two jetties on the east side of the channel to slow the accretion of sediments in the channel. The proposed project is located in the waters of the state at the southwestern end of Gilmore Bayou where it opens into Pensacola Bay. The project is adjacent to and north of 406 Navy Cove Road, in the City of Gulf Breeze, Florida, Section 6, Township 35N, Range 29W. The Petitioner's home is located at 86 Highpoint Drive, Gulf Breeze, Florida. Her residence is downstream from the project at the northeastern end of Gilmore Bayou. The channel at the southwestern end of Gilmore Bayou was originally dredged in the mid-1950s. Since that time, the channel has provided a navigable outlet to Pensacola Bay for use by property and boat owners along Gilmore Bayou. The channel has also provided for water circulation and tidal flushing within the Bayou. Maintenance dredging has been performed almost annually to keep the Gilmore Bayou channel open. The purpose of the proposed project is to reduce the need for the frequent maintenance dredging and to provide for better water circulation in the bayou. A wetlands resource permit to perform maintenance dredging has not been required in the past because that activity was exempt from the permitting process. On July 28, 1997, the Department issued Gulf Breeze a Notice of Intent to Issue Draft Permit Number 572874961 to construct one seventy (70) foot long concrete jetty at the mouth of Gilmore Bayou, widen the mouth of Gilmore Bayou an additional thirty-five feet and dredge sections of the Bayou to a depth of minus eight feet. In issuing the Notice of Intent to Issue, the Department also considered Gulf Breeze's application for a five- year sovereign, submerged land easement for the location of the jetty. Gulf Breeze published the Notice of Intent to Issue in a newspaper of general circulation in accordance with DEP requirements and Section 373.413(4), Florida Statutes, and Rule 62-343.090(2)(k), Florida Administrative Code. Thereafter, Petitioner filed a petition requesting that the permit be denied. Petitioner has a substantial interest in the permitted activity, as she owns property and resides on Gilmore Bayou. Petitioner's request that the permit be denied is primarily based on her opinion that water quality in Gilmore Bayou has deteriorated as a result of the original and continuous dredging of the channel at the southwestern end of Gilmore Bayou. She is concerned that the permitted activity will result in further water quality degradation and result in a further movement of the spit of land which extends in front of her home out to Deadman's Island on the northern side of the Bayou. The ecosystem in Gilmore Bayou today is a healthy system which supports various marshes and fish. The ecosystem thrives despite water quality degradation resulting from development and urbanization along its shores. More specifically, septic tanks, fertilizer runoff, and stormwater discharge have caused water quality to degrade in the Bayou. The most persuasive evidence indicates that the dredging of the channel over time has not caused the water quality to degrade. The permitted activity will have a positive effect on water quality in Gilmore Bayou, as it will enhance tidal flushing through the channel. The jetty, which is a part of the permitted activity, will slow the transport of sand into the channel, allowing for better flushing and reducing the need for maintenance dredging in the channel. Construction of the jetty is recommended and supported by the hyrdographic study of Kenneth L. Echternacht, Ph.D., P.E. Gulf Breeze obtained and submitted this study to DEP to assist in evaluating the project. The permitted activity will have no significant impact on the location of the spit of land extending from Petitioner's property to Deadman's Island. The shifting of the spit of land over the years has been caused by numerous factors which are identified in a 1993 study by Dr. James P. Morgan, Ph.D. These factors include development of the area, erosion of the surrounding bluffs, the location of the Pensacola Bay bridge, and storms and sand drift into channels to the east of the spit. Without this project or frequent maintenance dredging, the channel at the southwestern end of Gilmore Bayou would fill with silt. Eventually, the silt would inhibit water circulation and result in further water quality degradation in the bayou. The permitted activity is not contrary to the public interest. Instead, it will benefit the public interest. The project will make it possible to maintain the Gilmore Bayou channel more efficiently. The project will allow for increased flushing of the bayou. The increased flushing will improve water quality in the bayou. The permitted activity will not have any adverse effect on the conservation of fish or wildlife, or any endangered species or their habitats. The permitted activity will not adversely affect navigation or flow of water or cause any harmful erosion or shoaling. It will have a positive effect on navigation and water flow and act to prevent harmful erosion or shoaling. The permitted activity will have no adverse effect on fishing or recreational values or marine productivity in the vicinity of the project. The permitted activity will provide for permanent jetties and bulkheads at the entrance to Gilmore Bayou. The permitted activity will have no adverse effect on historical or archeological resources on Deadman's Island or in the vicinity of the project. The permitted activity will have a positive impact on the recreational functions and use of the channel and Deadman's Island.
Recommendation Based upon the findings of fact and conclusions of law, it is, RECOMMENDED: That the Department of Environmental Protection issue a Final Order determining that its Notice of Intent to Issue Permit, together with Permit No. 572874961, is final agency action. DONE AND ENTERED this 6th day of February, 1998, in Tallahassee, Leon County, Florida. SUZANNE F. HOOD Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 SUNCOM 278-9675 Fax Filing (850) 921-6847 Filed with the Clerk of the Division of Administrative Hearings this 6th day of February, 1998. COPIES FURNISHED: Mary Jane Thies, Esquire Beggs and Lane Post Office Box 12950 Pensacola, Florida 32576-2950 Ricardo Muratti, Esquire Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 Patricia J. Moreland 86 Highpoint Drive Gulf Breeze, Florida 32561 Matt E. Dannheisser, Esquire 504 North Baylen Street Pensacola, Florida 32501 Kathy Carter, Agency Clerk Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 F. Perry Odom, Esquire Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000 Virginia B. Wetherell, Secretary Department of Environmental Protection Mail Station 35 3900 Commonwealth Boulevard Tallahassee, Florida 32399-3000
Findings Of Fact As planned, Phase I of Foxwood Lake Estates will consist of 300 mobile homes, which would require treatment of up to 45,000 gallons of sewage per day. The proposed sewage treatment plant would have a capacity of 46,000 gallons per day and would be capable of expansion. It would discharge treated, chlorinated water into a completely clay-lined polishing pond that has been designed for the whole of Foxwood Lake Estates at build-out; capacity of the polishing pond would be three times the capacity necessary for Phase I by itself. From the polishing pond, water is to flow into one or both of two evaporation-percolation ponds, either of which would be big enough for all the sewage expected from Phase I. The sides of these ponds would be lined with clay and a clay plug would constitute the core of the dike on the downslope side of each pond. According to the uncontroverted evidence, effluent leaving the treatment plant for the polishing pond would have been effectively treated by the latest technology and would already have been sufficiently purified to meet the applicable DER water quality requirements. The applicant proposes to dig the triangular polishing pond in the northwest corner of the Foxwood Lake Estates property, some 400 feet east of the western property line. The evaporation-percolation ponds would lie adjacent to the polishing pond along an axis running northwest to southeast. Their bottoms would be at an elevation of 164.5 feet above mean sea level and they are designed to be three feet deep. The evaporation-percolation ponds would lie some 300 feet east of the western property line at their northerly end and some 400 feet east of the western property line at their southerly end. A berm eight feet wide along the northern edge of the northern evaporation-percolation pond would be 50 feet from the northern boundary of the applicant's property. Forrest Sawyer owns the property directly north of the site proposed for the evaporation-percolation ponds. He has a house within 210 feet of the proposed sewage treatment complex, a well by his house, and another well some 300 feet away next to a barn. Two or three acres in the southwest corner of the Sawyer property are downhill from the site proposed for the ponds. This low area, which extends onto the applicant's property, is extremely wet in times of normal rainfall. Together with his brother and his sister, Charles C. Krug owns 40 acres abutting the applicant's property to the west; their father acquired the property in 1926. They have a shallow well some 100 feet from the applicant's western property boundary, and farm part of the hill that slopes downward southwesterly from high ground on the applicant's property. Sweetgum and bayhead trees in the area are also a money crop. Charles C. Krug, whose chief source of income is from his work as an employee of the telephone company, remembers water emerging from this sloping ground in wet weather. Borings were done in two places near the site proposed for the ponds. An augur boring to a depth of six feet did not hit water. The other soil boring revealed that the water table was 8.8 feet below the ground at that point. The topsoil in the vicinity is a fine, dark gray sand about six inches deep. Below the topsoil lies a layer of fine, yellow-tan sand about 30 inches thick. A layer of coarser sand about a foot thick lies underneath the yellow-tan sand. Beginning four or five feet below the surface, the coarser sand becomes clayey and is mixed with traces of cemented sand. Clayey sand with traces of cemented sand is permeable but water percolates more slowly through this mixture than through the soils above it. The applicant caused a percolation test to be performed in the area proposed for the ponds. A PVC pipe six feet long and eight inches in diameter was driven into the ground to the depth proposed for the evaporation-percolation ponds and 50 gallons of water were poured down the pipe. This procedure was repeated on 14 consecutive days except that, after a few days, the pipe took only 36 gallons, which completely drained into the soil overnight. There was some rain during this 14-day period. Extrapolating from the area of the pipe's cross-section, Vincent Pickett, an engineer retained by the applicant, testified that the percolation rate of the soils was on the order of 103 gallons per square foot per day, as compared to the design assumption for the ponds of 1.83 or 1.87 gallons per square foot per day. Water percolating down through the bottoms of the evaporation- percolation ponds would travel in a southwesterly direction until it mixed with the groundwater under the applicant's property. It is unlikely that the ponds would overflow their berms even under hurricane conditions. Under wet conditions, however, the groundwater table may rise so that water crops out of the hillside higher up than normal. The proposed placement of the ponds makes such outcropping more likely, but it is impossible to quantify this enhanced likelihood in the absence of more precise information about, among other things, the configuration of the groundwater table.
Recommendation Upon consideration of the foregoing, it is RECOMMENDED: That DER grant the application on the conditions specified in its notice of intent to issue the same. Respectfully submitted and entered this 17th day of December, 1980, in Tallahassee, Florida. ROBERT T. BENTON, II Hearing Officer Division of Administrative Hearings Room 101, Carlton Building Tallahassee, Florida 32301 Telephone: 904/488-9675 FILED with the Clerk of the Division of Administrative Hearings this 17th day of December, 1980. COPIES FURNISHED: Andrew R. Reilly, Esquire Post Office Box 2039 Haines City, Florida 33844 Walter R. Mattson, Esquire 1240 East Lime Street Lakeland, Florida 33801 David M. Levin, Esquire Department of Environmental Regulation Twin Towers Office Building 2600 Blair Stone Road Tallahassee, Florida 32301
Findings Of Fact The Respondent Harper Brothers, Inc., operates a farming and limestone mining operation in Lee County, Florida. It has filed a surface water management permit application for a project to be operated as an adjunct to the mining operation at Green Meadows Mine owned by Harper Brothers. The Respondent Harper Brothers retained consultants in the general fields of engineering, hydrology, surface water management and hydraulics to assist in the formulation of a surface water management plan for the development and operation of their mining site. As a culmination of this effort, Respondent Harper Brothers filed its application for a surface water management system, and permit therefor, with the district. The SFWMD (District), upon receiving applications for surface water management systems and related permits evaluates water quantity, quality and various environmental concerns related to water resources mandated by Chapter 373, Florida Statutes, Chapter 40E, Florida Administrative Code and Chapter 17-3, Florida Administrative Code. Such an application must meet district criteria contained in the statutes and rules in order for the surface water management permit to be issued. The district's staff makes a recommendation to its governing board for approval or denial of such permits, and often with related conditions attached. In the instant case, after review of the various water quality and environmental criteria, the recommendation of the governing board of the agency was for approval of the permit with certain conditions. THE PROJECT The project which is the subject matter of this proceeding is a rock mining operation for the mining of limestone in Lee County, Florida. The application is for the construction and operation of a surface water management system to serve a 405-acre mining operation which, in essence, involves the management of the water produced by "de-watering," or pumping-out of the active rock pit, through use of a retention area, dykes, pumps, culverts and a weir structure; with a view toward keeping the water pumped from the pit (dewatering water), and stormwaters which fall on the site, contained in a retention area which has been designed to retain all the dewatering discharge. The only water discharge envisioned off the site represents the volume of stormwater which falls thereon. The stormwater which would be discharged off the site is that water which actually falls as rain onto the retention area as well as stormwater that is pumped into the retention area from the pit through the use of the two existing dewatering pumps. During excavation of the rock pit, water is discharged from the pit into the on-site retention area through use of these two pumps. An existing weir structure allows some water from the retention area to flow through a ditch to a small lake on the Respondent Harper Brothers' property. Water from the lake is used at the rock mine and some existing farmland of Harper Brothers is supplied irrigation water from it. At present, some farmland is supplied irrigation water through a pump from the retention area and some receives irrigation from the mine pit itself through another pump. The remaining water discharged from the mine pit is held in the retention area where it infiltrates into the ground. The retention area will be surrounded by 3.5-foot high by 12-foot wide dykes. Along the south side of the retention area a double dyke system is proposed. The outer dyke will also be utilized as a road and varies from three to four feet in height with a top width of 36 feet, which will be paved. Stormwater discharged from the retention area would flow through an outfall structure located at a crest elevation of 26.75 feet, National Geodetic Vertical Datum (NGVD). The controlled elevation in the retention area is 26.3 feet NGVD which is maintained by a 3.83-foot wide "bleeder notch." Discharge from this structure would then be routed westward between double dykes under the Harper Brothers' "north-south road" down a swale on the north side of its entrance road to "no-name" slough, the ultimate "receiving waters." It was established by expert witness Missimer, for Respondent Harper Brothers, that the dewatering discharge which would be held in the retention area will infiltrate into the ground at a rate of approximately 43,000 gallons per day per acre per a one-foot elevation in water level. The rate of infiltration in the ground is directly proportional to the "head" increase so that for a two-foot water level with the resulting increased pressure or "head," the infiltration rate would be 86,000 gallons per day per acre. Based on the presently permitted maximum monthly withdrawal rate, at a point of equilibrium would be reached at a water depth in the retention area of 1.3 feet, whereby the rate of water pumped into the retention area equals the rate of infiltration into the ground without considering additionally any evaporation into the atmosphere. Thus, the bleeder notch would be set at the above elevation so that all dewatering discharges from the mine (which may contain rock and other sediments) are effectively retained on site. PRE-DEVELOPMENT VS. POST-DEVELOPMENT DISCHARGES The SF design criteria contained in Chapter 40E, Florida Administrative Code, the applicability of which is not in dispute in this proceeding, provides that the volume of stormwater discharged from such a project cannot exceed the volume of such discharges from the same surface area in its pre-development condition. The development referred to in this instance is, of course, the development of the mine and the related retention area and other water management installations or "improvements." Expert witnesses Glaubitz and Serra testifying for the Respondent Harper Brothers and SFWMD established that the quantity of pre-development discharge from the subject site or surface area, was calculated based upon a "design storm event." This means that the pre-development discharge from the Harper Brothers' mine site was calculated, based upon reviews of the watershed boundary, the slope, the vegetation types, and the hydrologic length of the watershed in the geographical area, as well as through the use of aerial photography and U.S. Geological Survey maps, to show the amounts of surface and stormwaters discharged from this site, or its pre-development surface area, during a 25-year, 3-day duration storm event, meaning a storm lasting for a duration of three days of rain of a severity that has been experienced, according to meteorological records, an average of once in 25 years in the subject geographical area. Based upon these calculations of pre-development discharge rate or volume during a 25-year, 3-day storm event, the pre- development discharge from the Harper Brothers' mine site was calculated to be a volume of 10 cubic feet of water per second (cfs). "Post-development discharge" is the rate of discharge taking into account the same 25-year, 3-day storm event, which is allowed to discharge off the project site after development is completed. The calculation of post- development discharge was computed by taking into account such factors as soil storage capability, stage discharge and calculation of the amount of retention or detention of storm water required on the site. Thus, the calculated post- development discharge of stormwater from the site as it is proposed to be designed, is nine cubic feet per second during such a 25-year, 3-day severe storm, which capability is designed into the proposed project. Thus, the post- development discharge of stormwater off the project site does not exceed, and in fact is less than, the pre-development discharge of stormwater from the site. Included within the calculations by these two experts, concerning post-development volume of stormwater to be discharged, is an analysis of the quantity of water to be retained in the retention area of the proposed project. The discharge from the retention area is controlled by the above-mentioned weir and bleeder notch. The retention area proposed by the applicant is to be used both for discharge of dewatering water from the mine pit (under the previously issued industrial water permit) as well as for retention of stormwater. This weir and bleeder notch is designed to be at an elevation which only allows discharge of a volume of water representing the volume of stormwater entering the retention area over a given period of time, and not the dewatering water from the site, which may contain rock, dust in suspension, and other sediments. The previous permit granted to the applicant, as well as the permit sought in this proceeding, would require (as all parties agree) that the dewatering volume of water, representing the water pumped from the mine pit, will totally remain on the site. The project as designed is reasonably assured to be capable of retaining all such dewatering mine pit water on-site. One critical factor considered in determining the design and site for the retention area (155 acres) and in setting the bleeder notch elevation for discharge of stormwater volume, is the infiltration rate from the retention area into the ground beneath it. The Respondent Harper Brothers established (through these uncontradicted expert witnesses) that the infiltration rate is 43,000 gallons per day per acre of the retention area for a one-foot elevation of water in that retention area. One of the factors computed into the infiltration rate calculation is the "transmissivity rate." The transmissivity rate is 200,000 gallons per day per foot in the shallow or surface aquifer at the project site. Petitioner's expert, Mr. Bruns, conceded that if that rate is correct, as it was established to be, that the post-development volume of discharge leaving the project site would not exceed the pre-development volume of discharge, if the maximum pumpage rate into the retention area from the pit did not exceed 8.5 million gallons per day, and it is so found. Parenthetically, it should be noted that the Petitioner presented no testimony of its own concerning infiltration rates or transmissivity rates. Neither did the Petitioner's expert Mr. Bruns make any calculations of quantity of discharge from the site in either a pre-development condition or post-development condition, nor was a water management or hydrologic study of the drainage basin (approximately 6 square miles) made by Petitioner's expert witness, to assist in analyzing quantity of discharge. Under certain hypothetical conditions it would be possible for dewatering discharge water from the mine, as a volume of water, to be discharged, commingled with stormwater discharge, from the retention area. Thomas Missimer, testifying as an expert witness in the fields of hydrology and water quality for Harper Brothers, was uncontradicted. His studies and calculatiops in evidence established that, with regard to the infiltration rate downward into the soil under the retention area, and the amount of water pumped into the retention area, that equilibrium is reached when pumping into the retention area reaches 8.5 million gallons per day. That is, approximately 8.5 million gallons per day infiltrate downward into the soil and thus leave the retention area and thus an 8.5 million gallon pumpage rate per day would result in a static water level in the retention area, aside from evaporation. If the Respondent pumped in excess of this figure, which might be possible under its present mine dewatering industrial use permit, then the pumpage figure might exceed the equilibrium figure and cause the volume of water discharged off the site to exceed that volume which only represents stormwater. Accordingly, the parties stipulated that the maximum daily pumpage rate of 8.5 million gallons per day would be included as a condition in the permit, if it were issued to the Respondent, such that, based upon the uncontradicted infiltration data, that the limitation to a maximum pumpage rate into the retention area of 8.5 million gallons per day from the mine pit, would be permissible. In view of this stipulation, Petitioner withdrew its contention that the post-development volume of discharge water leaving the site would exceed the pre-development volume of discharge. It was thus shown that at the maximum pumpage rate of 8.5 million gallons per day no mine dewatering discharge (as a volume of water) will leave the retention area. NON-ALTERATION OF HISTORICAL DRAINAGE PATTERNS The Petitioners also contend that the supposed alteration of historical drainage patterns by this development at the site will cause additional flooding to the Petitioner's access road to their property (residence and nursery) by the road known as Mallard Lane. In that connection, the historic pattern of stormwater discharge off the project site or its geographical area, is figured into the analysis of pre-development water volume discharge versus post-development discharge. This project, like others of its type, is mandated by the rules at issue to not alter the pre-development patterns of water discharge off the site area so as to adversely affect the property and landowners off the site. Although the pre-development discharge is generally observed and calculated by looking at a site before the development involved in a permit application takes place, in the instant case, Harper Brothers, Inc., by the authority of its previously issued dewatering and industrial water use permit had already initiated its mining operation and so pre-development conditions as they relate to this permit were not directly, physically observable. Accordingly, a hydrologic study of the drainage basin in which this project is located was performed, and, in conjunction with the use of aerial photography and U.S.G.S. quadrangle maps, the perimeter of the basin was determined and an analysis of the historical pattern of flow in the drainage basin was done. The general flow of water in the drainage basin historically is from northeast to southwest, with an ultimate discharge into the "no-name" slough, a "cypress head" or slough which generally flows in a westerly and southwesterly direction from the area immediately adjacent to the project site. Internally within this drainage basin, some old pre-development north/south dykes have blocked some of the westerly flow which historically existed at the site, thereby causing some of the water to flow in a northwesterly direction until it reaches the northern end of the north/south dykes, thence returning to the generally southwesterly drainage pattern, ultimately ending up in the slough system. A small area of farm fields was located north of the east/west access road to the site, and southerly of an existing east/west line of farm dykes, and may have drained in a southerly direction before development. There is currently no information and no evidence of record concerning how this farm field area was drained. The drainage from this area now, however, is insignificant and is calculated at approximately one cubic foot per second as a maximum rate. As the calculated post-development discharge from this project site is approximately 9 cubic feet per second, even if it be assumed that the drainage from the old farm field should be added to the post-development discharge rate from the project site itself, such an addition would only equal and not exceed the historic, pre-development discharge rate of ten cubic feet per second. The flows in a southerly direction are currently blocked by the east/west access road to the Harper Brothers' site, used by Harper Brothers. In a predevelopment condition however, the same situation existed since the southerly flow was similarly blocked by farm dykes which existed in the pre- development condition. The proposed facility is designed to have stormwater which falls on the entire project site to be pumped into the retention area. The volume of stormwater permitted to be discharged will discharge from the retention area via the above-mentioned outfall structure and will be routed westward through the double-dyke system down a drainage swale on the north side of the entrance road, and ultimately into the no-name slough. Thus, the historic drainage pattern of the basin from the northeast to the southwest will not be significantly altered by the project as designed and proposed. The project generally preserves this historic drainage pattern by discharging the drainage within the basin into the "no-name" slough as occurred in the pre-development condition which, when the above-described pre-development and post-development discharge rates are compared reveals that there will be no adverse alteration in terms of either a dearth of or excess of water supply to this natural slough system. The Petitioner's access road, North Mallard Lane, running from north to south, accessing Petitioner's property west of the project site, is indeed subject to inundation, but was subject to such inundation in the pre-development condition of the project site. This is because the slough crosses this access road. Since the post-development condition does not alter the historic patterns of drainage to any significant degree, and does not represent an alteration in the volume of discharge from the project site area over that in the historic, pre-development condition, no additional flooding to the Petitioner's access road will be caused as a result of the project installation and operation. The flooding being caused to the Petitioner's access road, indeed was shown to be related in part to culverts of insufficient size installed by Lee County, so that water tends to stand on the road surface as opposed to draining under and away from it. NON-ALTERATION OF THE pH OF RECEIVING WATERS It is undisputed that the subject project, like all such projects, under the permitting authority of SFWMD, must meet state water quality criteria contained in Chapter 17-3, Florida Administrative Code. The design of such a surface water management system must include "best management practices" (BMP's) in order to satisfy the district's design criteria. BMP's are techniques which are incorporated into the design of such a system to enhance water quality such as the use of swales, retention ponds, and gravity structures. Given that the project will utilize a retention area, grassed swales and other well accepted water management structures, the design was shown to comport with "best management practices." Water quality measurements for the only water quality parameter in dispute, that of pH, were taken on the project site using standard, accepted scientific methods and U.S. Geological Survey Water Quality Standard sampling techniques. The tests revealed a pH in the retention area itself of 7.91 pH units. The pH in the pit area was 7.8 pH units and in the off-site water in the slough, the pH was 7.3 units. The water discharge from the retention area would be a combination of stormwater (rain water) which is approximately 6 pH units in the geographical area involved, and the retention area water at approximately 7.8 pH units. The precise pH of this discharge water would depend on the quantities of water from each source, but was shown to be almost neutral or approximately at a pH of 7. Thus, the discharge from the retention area of the commingled dewatering and stormwater, if such occurs, will not alter the receiving waters one full pH unit. Upon issuance of the permit, the applicant will still have to comply on a continuing basis with the water quality parameters of Chapter 17-3, Florida Administrative Code, and the staff of SFWMD will continue water quality monitoring after the permit is issued. There has thus been no showing that commingling of dewatering water and stormwater in the retention area and the discharge of such commingled waters to the receiving waters of "no-name" slough would affect the pH of that receiving water in a manner to exceed existing, permissible pH parameters and adversely affect water quality. Expert witness Serra testifying for the district as well as for Harper Brothers, has studied similar mining operations. Such operations, utilizing similar water management procedures, have not caused any water quality violations related to discharges of commingled dewatering and stormwater, including no violations of the pH parameters. Finally, near the conclusion of the proceeding, Petitioner, in effect, abandoned its dispute regarding the issue of compliance with the pH water quality parameter.
Recommendation Having considered the foregoing Findings of Fact and Conclusions of Law, the candor and demeanor of the witnesses, the evidence of record and the pleadings and arguments of the parties, it is, therefore RECOMMENDED: That a Final Order be entered by the South Florida Water Management District authorizing issuance of a surface water management permit to the applicant herein for the proposed surface water management system, imposing upon the applicants the limiting and special conditions enumerated in the district staff report depicted in Exhibit 2 and incorporated by reference herein, and additionally, those two special conditions set forth immediately above. DONE and ENTERED this 17th day of August 1984, in Tallahassee, Florida. P. MICHAEL RUFF 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 17th day of August 1984. COPIES FURNISHED: W. E. Connery Gulf Hydro-Farms, Inc. Post Office Boa 148 Estero, Florida 33928 John A. Noland, Esquire Post Office Box 280 Fort Myers, Florida 33902 Michael S. Tammaro, Esquire South Florida Water Management District Post Office Box "V" West Palm Beach, Florida 33403-4238 John R. Maloy, Executive Director South Florida Water Management District Post Office Box "V" West Palm Beach, Florida 33402
The Issue Whether the Department of Environmental Regulation, upon all of the information presented before it, properly issued its Notice of Intent to Deny the request for a permit channelizing the subject streams within the Mills Creek Watershed. FINDINGS OF FACT 1/ It is the Petitioner's contention that the Petitionerhas failed to demonstrate, as a matter of law, its entitlement toa permit for channelization of the Mills Creek Watershed initially because the project will entail an alleged loss of watershed and wildlife habitat "particularly since there are no restrictions on private drainage connection". As stated supra, in the Background section., one of the agencies that has commented on this project, the St. Johns River Water Management District, at its August 18, 1976, meeting endorsed the Mills Creek project with the recommendation that no direct connections of laterals, drainage ditches and/or secondary connections be allowed within the boundaries of the flood plain as they presently exist. There is at present a local ordinance pending to comply with this proviso which has been endorsed by the chairman of the Board of County Commissioners for Nassau County. And, aside from this fact, DER is authorized to incorporate finite limits into drainage permits to prevent excessive drainage into any project in which a permit is required. And, as stated, the county has acquiesced with the suggestion by Gerald Herting of DER that such constraints he placed in the permit provided favorable action is taken by DER. Testimony introduced during the hearing in the case reflects that provisional permits are not uncommon. (Testimony of Landon Ross and Douglas Bailey of DER and the Office of Environmental Protection, of FG&FWFC,respectively.) Stephen Gatewood, an environmental specialist, analyzedthe Mills Creek project plans and also visited the site. He testified that the subject project was well planned ecologically in terms of soundness and, based on the manner in which the plans are drawn and the construction will be implemented, the least amount of environmental damage will result. He compared the Taylor Creek channelization project with the subject project and while noting that there were differences, he testified that he was unable to give his blessings to the subject project, inasmuch as the Taylor Creek project had been "a bad experience". The similarity between the two projects is the fact that there are effluents flowing from dairies on both projects although Gatewood was unable to show what impact effluents flowing from the dairy situated in the Mills Creek area had on this project. Doctor Shireman, a professor of fishery sciences and a biologist with the University of Florida, sampled the fish population in both the channelized and non-channelized portions of the project streams for the last year. Doctor Shireman stated that the fish population was representative of the fish populations in lakes and streams throughout Florida and also indicated that if the county ordinance was passed and lateral inlets into the channel were controlled, the channelization project would have minimal impact on tie lower parts of the stream. Moreover,experts from the Department and the Petitioner agreed that thepotential water quality damage would be minimal at worst. Section 17-4.28, F.A.C., adopted pursuant to Chapter 403, F.S., places the burden upon the Petitioner to affirmatively show and demonstrate to DER that its channelization project will not result in violations of the water quality criteria, standards, requirements and provisions of Chapter 17-3, F.A.C., over the short and long term periods. Also, Section 17-4.29 F.A.C., adopted pursuant to Chapter 253, F.S., requires the applicant to affirmatively demonstrate to the Department that, based upon a biological and hydrographic survey, the project will not interfere with the conservation of fish, marine and wildlife, or natural resources. Finally, the project must be designed so as not to violate Section 403.161, F.S., which prevents the causing of pollution, harm or injury to human health or welfare, animal, plant or aquatic life or property. In this regard, the evidence introduced at the hearing revealed that essentially all of the water quality studies and the majority of the studies associated with the aquatic system were carried out by Doctor Shireman through a cooperative agreement between the University of Florida and SCS. Doctor Shireman, as stated, analyzed the fish population in the channelized and non-channelized areas of this project and found the fish and aquatic population to be representative of similar lakes and streams in this State and, further, that there was no measurable difference in the fish population in the channelized area, an area which had been completed approximately seven years ago, and the non-channelized areas. This study encompassed a period ofapproximately one year. It was also noted that for the most part, measured data indicated that the water quality in the channel system met the criteria for Class III waters. Also, as stated earlier, the channel supported good fish populations and samplings of the stations in the channelized portions conducted by Doctor Shireman provided no basis for a finding that the constructed channels were in any manner degrading water quality despite the fact that the channels had been constructed for approximately seven years. The studies also revealed that through an examination of the benthic organisms and fish life found in all channels and receiving waters, an acceptable quality free from detrimental levels of toxic materials was prevalent. The Department also expressed a concern that channelization would drastically reduce the number and size of fish due to increased sedimentation and the loss of stream bed niches and pits. The Department offered its position that dredging homogenizes the bed structure, reduces roughness and diversity and destroys diversity of the current pattern. Sampling of the subject project streams indicate that in the watershed 39 different species of fish were discovered, 30 of which were found in the channel sections. The data also revealed that there was little specie difference in the benthic organisms between channel and unchanneled portions of the watershed. There was no evidence introduced of any increased sedimentation taking place in the previously constructed channels. The Department also expressed concern over clear-cutting during construction, with resulting increases in the water temperatures, wetland reduction, streamside foliage destruction and turbidity. Respecting this concern, Jesse Livingston, a registered civil engineer involved in the design and implementation of the project, testified that the Mills Creek area was designed and redesigned to address and satisfy the concerns of the various commenting agencies and that the project was not designed to drain the swamp as the commenters feared. To the contrary, he testified that the hydrologic grade line of the channels was set two feet above the normal ground in the area and in fact the planners envisioned a design to flood the swamps to increase the wetlands. He testified that a detailed geological investigation was made of the channel by taking soil samples during field investigations to determine permeabilities and soil types to determine a safe velocity for the channel's design. Mr. Livingston testified without contradiction that the project was designed so "that the side slopes would remain essentially as planned; taking precautions to ensure that the channel bottoms do not degrade and by stabilizing the channel. In so doing he commented that the bed load would continue moving through the channel system which ultimately would fill the downstream channels". He testified that limited turbidity would occur during the process of construction but by use of proper construction techniques, the channel system would be stabilized and no significant amount of turbidity would result. He testified that pipe drops were designed and set along the channel to control the manner in which water entered the swamps and ultimately into the channel. Respecting the allegations and concerns expressed of clear-cutting and increasing water temperatures during construction, Livingston testified that the channels were designed to be constructed from one side and thereby eliminating the amount of clearing which was a sure way to control clearing and also minimize any temperature increases along the channel. This method, according to Livingston, also provides essentially the same cover to foliage due to the fact that the channelization would all occur on one side. Testimony introduced also revealed that the streamside foliage had begun to fully recover within the channelized area and that the streamside foliage which would be temporarily lost during the construction phases would fully recover to vegetation within one growing season. Finally, he testified that provisions would be made to curtail turbidity within allowable limits. His testimony reveals that the bottomland hardwoods would not be disturbed due to the graded side inlet pipes which was done at the request of FG&FWFC. He concluded that the ecological change in the swamp diversity would be temporary, lasting only temporarily beyond the construction phases.
Conclusions As the Petitioner (applicant) points out, the Department's reviewers seem to have taken a textbook approach in reviewing the available data in reaching its decision of its intent to deny the permit for the Mills Creek channelization project. While there were some shortcomings in data which largely stem from the difficulty in ascertaining the impact of the effluents of the dairy in the area, the weight of evidence tends to support a conclusion, by competent and substantial evidence, that the project would not degrade the air and waters of this State. The Petitioner, through various meetings with all of the State and Federal agencies commenting on the design of this project, addressed all issues and designed the project so as to meet and satisfy the concerns of interested parties. The available data also revealed that in those areas wherein potential problems may arise in the future,the agencies are armed with sufficient authority to remedy and correct such problems. The engineers for this project designed it based on the guidance and consultations of all agencies who were interested in the ecological welfare of this area and took great pains to see that air and water quality would not be degraded. The local county officials have also given their approval to limit lateral connections by upland owners and the overall project design appears to be in keeping with the letter and spirit of Chapters 403 and 253 and Sections 17-3 and 4, Florida Administrative Code. For all of these reasons, I am forced to conclude that the Petitioner (applicant) has met its burden of establishing that the requested permit for the channelization project herein will not result in a degradation of air and water quality and, therefore, the permit should be issued. In keeping with the recommendations by the St. Johns River Water Management Board, I shall recommend that the permit be issued with the proviso that no lateral connections be made to the channelization project by upland owners.
Recommendation Based on the foregoing findings and conclusions of law, it is hereby recommended that the Department of Environmental Regulation cause to be issued a permit authorizing the applicant herein to channelize the remaining section of the Mills Creek project as requested with the proviso that the channelization operations be stayed until the Board of County Commissioners of Nassau County pass an ordinance that provides that no direct connections of laterals, drainage ditches and/or secondary connectors be allowed within the boundaries of the flood plains as presently exist. RECOMMENDED this 26th day of June, 1978, in Tallahassee, Florida. JAMES E. BRADWELL, Hearing Officer Division of Administrative Hearings Room 530, Carlton Building Tallahassee, Florida 32304 (904) 488-9675
Findings Of Fact In June 1984, Clark Vargas applied for a permit with the Department of Environmental Regulation for activities in the waters of the state. The application stated that the proposed activity was to construct a soil road 700 feet long and constructed of 2,000 cubic yards of fill to be deposited landward of the mean high water line. The roadway proposed was to have Geotextile Fabric placed over it, and would have fifteen inch culverts for cross flow. The purpose of the road was to allow 8 property owners to have automobile access to their lots. Attached to the application was a copy of a larger engineering drawing of the project, reduced to letter size paper. The larger drawing C in evidence as Responder's Exhibit 1, and the original application is in evidence as Respondent's Exhibit 2. The drawing depicts the construction that is proposed, and in the notes states that the mean high water line is 1.1 feet above mean sea level. The drawing (Respondent's Exhibit 2) shows a number of elevation readings along the road. The elevation readings on the land upon which approximately one half of the road is to be located, the southerly portion closest to Julington Creek, and adjacent to lots 19 through 26, are all below the elevation of mean high water. The data as to the mean high water elevation for the note on the drawing was obtained by Mr. Vargas from the Corps of Engineers. The elevations on the road were the elevations measured by a survey caused to be conducted by Mr. Vargas starting from a U.S.G.S. benchmark three quarters of a mile away. The survey was conducted by a registered land surveyor. Mr. Vargas stated that the survey was not meant to be a survey to establish mean high water, and that it was intended to determine a price and plan for construction. In Mr. Vargas's professional opinion, the survey was not adequate to establish the mean high water line. Timothy J. Deuerling, an Environmental Supervisor I for the Northeast District, visited the site of the project in the summer of 1984. He saw water throughout the area. He developed the initial opinion that the project was landward of the mean high water line. When he returned to the office, he looked at the small attached drawing and decided that the project appeared to be mostly landward of the mean high water line. The elevations are very unclear on the reduced size version attached to the application. Mr. Deuerling's statement as to the mean high water line is contained in Respondent's Exhibit 4. It is the finding of the Hearing Officer that the drawing was so small and the elevations so unclear that Mr. Deuerling's opinion as to the mean high water line in Exhibit 4 is not reliable, and is rejected. Jeremy G. Tyler, Environmental Supervisor of the Dredge and Fill Section, North East District, said that the conclusions contained in the Intent to Deny and Final Order of Denial, Respondent's Exhibits 7 and 6, that one-third of the fill was to be placed waterward of the mean high water line, was based upon the data provided to DER by Mr. Vargas, Respondent's Exhibit 2. Mr. Tyler said that it is very hard to determine mean high water line by site inspection, and that he credited the survey as better evidence. It is she finding of the Hearing Officer that the location of the mean high water line has not been established by the evidence. This finding is not based upon the testimony of Mr. Vargas, however. Mr. Vargas did not present any evidence that the standard for mean high water, which was obtained from the Corps of Engineers, was inaccurate, and he did not present any evidence that the survey elevations on the drawing were inaccurate. There is good reason to believe that the proposed road in this case may be, at least with respect to the one half from lots 19 through 26, waterward of the mean high water line. The evidence shows there is an elevated ridge along the edge of the canal, that this ridge was caused by deposit of dredged material when the canal was dredged in the 1950's or 1960's, and that the ridge has eroded in places, and the water from the canal and Julington Creek floods much of the area from time to time through low places in the ridge. The engineering drawing, however, runs a series of elevation readings across only two places on the ridge, and in both cases there is at least one reading above mean high water level. Further, the only reading at a spot directly on the open water is at the southerly end of the proposed road, and it also is above mean high water. It is possible, therefore, that although portions of the road are below mean high water elevation, these portions may be completely surrounded by higher ground. It is also possible that the several low spots on the canal ridge bring the mean high water line to the road itself. On this record, it is not possible to conclude where the mean high water line is. The site of the proposed road and surrounding lots are located in a hardwood swamp associated with Julington Creek in Duval County. The land upon which the road would be built is heavily wooded. Julington Creek is Class III waters of the state. The land upon which the road is to be built is the landward extent of the waters of the state. All of the Petitioners stipulated at the hearing that the Department of Environmental Regulation has jurisdiction to require a permit for fill pursuant to Chapter 403, Florida Statutes. The proposed project would result in the placement of silica fill upon a strip of wetlands described above measuring 25' by 702.5', which is 17,562.5 square feet, plus four driveway pads to lots measuring 25' by 30', for an additional 3900 square feet, for a total of 20,562.5 square feet, which is 0.47 of an acre. (An acre is 43,560 square feet.) The sand of the roadway and driveway pads will not pollute the waters of the state. The sand of the road will not increase biological oxygen demand or nutrients. During construction, turbidity could be increased if high waters are experienced and the area is not properly stabilized, but turbidity could be monitored and controlled. The materials of the roadway further will not depress the oxygen levels in Julington Creek. The project originally proposed that seed and fertilizer be used to stabilize the banks of the road, and fertilizer would contribute to nutrients in the waters of the state, but Petitioners at the hearing gave reasonable assurances that seeding could be accomplished without fertilizer by using burlap and seed. The roadway itself will also not generate unlawful bacteria that could make its way to the waters of the state. The road will disturb the biological integrity of the organisms living in the soil beneath the roadway and driveway pads. The proposed project will permanently destroy 0.47 of an acre of the wetlands associated with Julington Creek. These and adjacent wetlands function as a natural kidney, cleansing the water of pollutants, in a continuous cycle. Wetlands contain soil and living organisms that, in balance, filter out pollutants, assimilate nutrients, and provide habitat for organisms. The silica road proposed by Petitioners will not perform these functions. Petitioners presented no evidence to rebut these findings, except to argue that the loss of wetland was insignificant and to argue that wetlands, at times, will also cause pollution. Petitioners gave no other reasonable assurances that the long-term effects of the road would not degrade water quality. The exchange of water, which results in the natural filtration and cleansing described above, occurs from waters coming from the uplands, from the wetlands, and from open waters such as Julington Creek. Julington Creek is tidal, and the testimony indicated that with significant regularity the wetlands associated with this proposed road were inundated with water. In a natural state, wetlands will experience dry conditions. During such periods, which are natural and cyclical, water will drain from the swamp and there can be a natural depression of oxygen levels in the open waters, increasing suspended solids. While these facts are true, Petitioners did not present evidence to show with particularity whether this had occurred or to what extent this had occurred with respect to the wetland area where the road is to be located, and did not show with particularity how removal of these wetlands by constructing this road would prevent natural degradation of the water in the future. Moreover, whether or not the natural filtration system of a wetland becomes less efficient due to natural cycles is not relevant in this case. Petitioners here do not propose to replace nature's cyclical inefficiencies with a better, manmade system, but propose, rather, to remove a significant portion of the only filter now operating, without replacement. The entire Julington Creek drainage basis is 30 or 40 square miles. The relevance of this figure was not established, since from the map which is Respondent's Exhibit 9 it is clear that the drainage basis of Julington Creek, with its associated wetlands, serves to filter pollutants from an equally large, if not larger, upland area. Petitioners argue that removal of 0.47 acre is insignificant if the entire area is 30 to 40 square miles, but from Respondent's Exhibit 9 it is evident that much of that other part of the wetland is not available to function as a filter for the waters currently filtered by the wetlands in the vicinity of the pro- posed roadway. The proposed road is near the conjunction of Julington and Durbin Creeks, and near the place where the open waters enlarge. The wetlands of the proposed road would be expected to serve the filtration function for those open waters and the uplands immediately above the wetlands, and not some other part of the 30 or 40 square miles. The land at the headwaters of Julington Creek is now being developed for multifamily housing and industrial uses, and the whole watershed of the Creek is being developed. The waters of Julington Creek have already been stressed in a general way by this development. Petitioners Vargas, Mrs. M. E McCullough, Dr. Robert L. Barksdale, and Mr. Steve Scecere, all testified at the hearing, and own, respectively, lots 22, 21, 19, and 24. All testified that they intend to build houses on their lots, but have not yet applied for permits. Since 1977, the Department of Environmental Regulation has consistently taken the position that deposit of fill on the wetlands which are the landward extent of Julington Creek will degrade the quality of the waters of the state, and have consistently acted to prohibit such fill. See Respondent's Exhibits 8, 10, and 11. The Department further has consistently told prospective buyers of this position with regard to these wetlands. Of particular relevance to this application, in 1977 the Respondent denied a fill permit to place 2,500 cubic yards of fill on lot 20 as depicted on Respondent's Exhibit 1. This lot is now owned by Debra H. Prevatt, and is contiguous to lot 19 owned by Petitioner, Dr. Robert L. Barksdale. The fill proposed in 1977 would have eliminated 20,000 square feet of wetlands, approximately the same as the proposed project in this case. Petitioner proposes the finding that the Corps of Engineers stands ready to issue their permit pending resolution of their application by the Department of Environmental Regulation. This finding is based solely upon the testimony of Mr. Vargas as to the intentions of unnamed officials in the Corps of Engineers, and as such, is hearsay. Therefore, absent direct evidence on the point, the proposed finding is rejected. Petitioners propose a finding that the permitting process progressed "without negative feedback" until objections were raised by adjacent property owners. This finding was not supported by any evidence other than the opinion of Mr. Vargas, and will be rejected as unsupported and possibly hearsay. It is also rejected as irrelevant since there was no evidence that the Respondent denied the permit for reasons other than those provided by statute and regulation. The Petitioners have paid taxes on their property, are of the opinion that they cannot build on their land if the permit is denied, and would be willing to sell their land to the state for a reasonable amount if the permit is denied. Respondent has not placed a monetary value on the wetlands which Petitioners propose to fill. If Petitioners proposed to build the road on pilings, elevated above the wetlands so that most of the wetlands would continue to function, the application would be approved.
Recommendation It is therefore recommended that the application for a dredge and fill permit to construct the road and driveway pads as proposed by Petitioners be DENIED. DONE and ORDERED this 1st day of March, 1985, in Tallahassee, Florida. WILLIAM C. SHERRILL, JR. 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 1st day of March, 1985. COPIES FURNISHED: Clark Vargas, P.E. President C. Vargas & Associates 8596 Arlington Expressway Jacksonville, Florida 32211 M. E McCullough 9139 Warwickshire Jacksonville, Florida 32217 Steve Scecere 9058 Kentism Court Jacksonville, Florida 32217 Dr. Robert L. Barksdale 2423 Acadie Jacksonville, Florida 32205 Ross Burnaman, Esq. Department of Environmental Regulation 2600 Blair Stone Road Tallahassee, Florida 32301 Victoria Tschinke, Secretary Department of Environmental Regulation 2600 Blair Stone Road Tallahassee, Florida 32301
Findings Of Fact The Petitioner is the owner of five acres of undeveloped real property in Henderson Creek Basin, Naples, Collier County, Florida. The property is dominated at the tree canopy level by medium-sized cypress. The mid-story plant association is made up of a varying mix of wax myrtle, dahoon holly, seedling cypress, and a lesser amount of slash pine. Hypercium, stillingia, poverty grass, and xyris are the major components of the ground cover. In the vicinity of the proposed homesite, the ordinary mean water depth averages 2-4 inches, as indicated by the water marks on the stems of cypress, stillingia, and cypress knees. Based upon the dominant vegetation, the project site is within the jurisdiction of the Respondent for the regulatory purposes set forth by law. The Petitioner intends to build a house on the property for his personal use. In order to construct the residence, the Petitioner applied to the Respondent for a dredge an fill permit. In the application,, the Petitioner seeks a permit which would allow him to place 1,200 cubic yards of sand fill over a .17 acre area of the submerged land. The proposed location for the housepad, septic tank and drainfield is the center of the five acre parcel. This is the predominant area in which the Petitioner seeks to place the fill. A large portion of this part of the property is low and consists of wetlands. The project, as it is designed in the permit application, does not provide the Respondent with reasonable assurance that the applicable water quality standards for the geographical area will continue to be met. In fact, the proposal demonstrates that a violation of the standards will occur. The Petitioner recently cleared 14,340 square feet of the wetlands in the proposed homesite area. The cypress trees which ware removed acted as a pollution filtration system and aided in the cleansing of the standing waters on site. These waters eventually percolate down to the aquifer to become an important source of fresh water for the state. Without the trees, the water will lose an important aid in the natural purification process. In addition to the adverse impact on water quality, the project will interrupt the natural water flow and filtration which has historically occurred when the water located in the low wetland area on the property has overflowed and eventually run into Henderson Creek. The Respondent is required to consider this natural condition in its determination as to whether or not a permit should be issued. The Respondent has indicated that certain changes should be made to the project in order to make it eligible to receive a permit. The Respondent suggested that the Petitioner relocate the fill area for the house pad eighty- five feet to the west of the proposed site. The septic tank and drainfield should be moved one hundred and ten feet to the west. The drive should be reduced to a single lane which leads directly to the housepad. In addition, three culverts should be placed under the drive. The purpose of these modifications would be to minimize the impact of the project on the wetland site. The movement of the project away from the cypress area would minimize the damage to water quality that would occur if the septic system were placed in the wetlands. If the design for the lane and driveway were modified, the harm to the natural sheet flow of the water through the area on its route to the creek would be greatly reduced. Another suggested modification was to remove exotic vegetation which has been planted or which has begun to dominate in some areas because of the clearing of the property which took place before and after the Petitioner purchased the property. The Respondent also seeks a construction plan from the Petitioner which demonstrates that the fill areas will be adequately stabilized and that turbidity will be controlled during construction. The final modification suggested by the Respondent was for the Petitioner to place a deed restriction on the property which would protect the planting areas and the remainder of the wetlands on the site. The Petitioner's expert, Gary L. Beardsley, has recommended that the proposed circular entrance driveway be eliminated and that a single and straightened lane be substituted its place. He further recommended that one 12" diameter culvert should be installed under the lane near the housepad in order to facilitate or equalize any sheet flow on the downstream side. This recommendation is made to substitute for the agency's proposal that three culverts be placed under the straightened lane. In addition, the Petitioner's expert recommended that the septic drainfield be moved 30 feet westward to reduce the fill slope requirements by abutting the house and septic fill pads. The Petitioner should also be required to replant 5,265 square feet of wetland area that he cleared on site with the approval of the Collier Natural Resource Management Department, but without the approval of the Respondent. The Petitioner has not agreed to any of the proposed modifications, including those proposed by his own expert. The Respondent's request for a deed restriction is not necessary to the agency's regulatory function. There was no reason for the request presented at hearing by the agency.
Findings Of Fact Background On January 29, 1981 respondent/applicant, George H. Hodges, Jr. (applicant or Hodges), filed application number 16 39644 with respondent, Department of Environmenta1 Regulation_ (DER), seeking a dredge and fill permit to generally authorize the excavation of 26,000 cubic yards of material from a 3,700 foot portion of an existing channel (Old Pablo Creek) just west of the Intracoastal Waterway (ICW) in Jacksonville, Florida. The channel then proposed was a straight channel along the northern boundary of his property. Hodges also sought to construct two boat slips, three floating docks, an 850 foot vertical bulkhead adjacent to the docks, and to dispose of all dredged material in a diked upland site. Thereafter, DER informally advised applicant that it intended to deny the application for various reasons, including the fact that the dredging would eliminate .75 acres of marsh and wetlands. After receiving this advice, Hodges proposed a series of amendments to his application in 1984 and 1985 in an effort to counter and satisfy DER's objections. The final amendment was made on September 10, 1985. As finally amended, Hodges proposed to confine all dredging to existing salt channels, thereby eliminating the objection that adjacent marshes would be destroyed. Applicant also proposed to restrict his dredging to only 2,250 feet along the northern portion of Old Pablo Creek and to remove 29,250 cubic yards of fill (silt) and sand and place the same in a 12.5 acre upland spoil site. By proposed agency action issued on February 28, 1985, DER announced it intended to issue the requested permit. This prompted a protest and request for hearing from petitioner, Jacksonville Shipyards, Inc. (JSI), which owns and operates a ship repair facility on the ICW just south of the proposed project. In its petition, JSI generally alleged that (a) Hodges had failed to give reasonable assurances that water quality standards would not be violated, (b) the project would adversely affect its property, (c) the project would have an adverse effect on the conservation of fish and wildlife, (d) the project would cause harmful erosion or shoaling, (e) DER failed to consider the long-term effect of the project on marine productivity and the cumulative impact of the project, and (f) the proposed vertical bulkhead did not meet statutory requirements. The Project The project site is a shallow horseshoe shaped creek approximately 3,700 feet in length which meanders through a vegetated salt marsh just west of the ICW in Duval County, Florida. Both ends of the creek connect into the ICW. The site is approximately one-half mile north of the bridge on Atlantic Boulevard which crosses the ICW. The ICW is a man-made channel constructed by the U. S. Corps of Engineers which runs in a north-south direction just east of the project site. It is commonly referred to as Pablo Creek. The channel or creek in which the dredging will occur is known as Old Pablo Creek (creek). An excellent aerial view of the entire area is shown in petitioner's exhibit 4 received in evidence. The creek is a predominately marine water classified as a Class III water of the State. Accordingly, it is subject to DER's regulatory jurisdiction. For purposes of this hearing, the parties have referred to the upper and lower portions of the creek as the northern and southern portions, respectively. Hodges intends to dredge the northern portion of the creek, which measures approximately 2250 feet in length from the ICW to a bend at its western end which crosses Hodges' property and where a residential site is located. According to Hodge's affidavit of ownership, he is the "fee interest owner of adjoining lands except for the dredge channel which is owned by the State of Florida". He acknowledged, however, that the residential site is owned by his superintendent, and that the marshes adjoining the most southern bend in the northern portion of the creek, and the southern portion of the creek, are owned by JSI. Except for the cleared residential site at its western end, the creek is surrounded by vegetation and salt marshes. The vegetated portion of the marsh is marked by a clearly delineated edge which separates it from the creek bottom. The dominant species of vegetation in the marsh are Juncus and Spartina. The marsh serves as a habitat and breeding ground for numerous species, including fiddler crabs, mussels, barnacles, mollusks, faunal communities and gastropods. In addition, the marsh is beneficial because of its biotic productivity and entrapment of nutrients and sediments. For this reason, the habitat should be maintained. Some forty years ago, the portion of the creek that Hodges intends to dredge was eight to twelve feet deep. However, dredging of the ICW by the Corps of Engineers and the placement of fill at the site of the Atlantic Boulevard Bridge have contributed to the shallowing of the creek over time. Today, portions of the creek are exposed and impassable under low tide conditions. Indeed, many parts of the creek are dry during the low tide phase of the ICW. At high tide, the creek is flooded to an approximate depth of four feet. Hodges proposes to dredge the creek channel to a uniform depth of five feet below mean low water (MLW) with side slopes at a 3:1 ratio to restore navigational access from his upland property to the ICW. He has represented that his use of the channel will be restricted to one, or possibly two, small boats for personal use and enjoyment. When completed, the creek channel will have a depth of nine feet at high tide, or an average depth of seven feet over a diurnal cycle. In his amended application, Hodges proposed to confine his dredging to existing creek channels, and to not disturb the actual body of the salt marsh or the vegetation bordering the creek. It is noted that there is no vegetation growing in the existing creek bottom. However, at hearing he conceded that dredging "may include some minor removal of isolated patches of grass growing in the creek channel". One such patch of grass lies in the elbow of the canal which reaches south of Hodges' property, a patch separated from the main body of the marsh by a five foot wide slough deep enough to be navigated at high tide. Hodges estimates this patch of grass to be less than 1/100 of an acre in size (10' x 40') and maintains the effect of its removal would be negligible. The excavation will be effected by means of a Mud Cat hydraulic dredge which operates by suctioning the sediment and water into a pipe. The dredge material (sediment/water mixture) will then be pumped into a series of containment cells on a 12.5 acre upland spoil site that lies approximately one-half mile northeast of the project. Any discharge from the spoil site will be to Greenfield Creek, a tidally influenced creek connected to the St. Johns River. The natural grade of the existing creek bottom is at or below the mean low water datum. At high tide the existing creek is 4.3 feet deep at its deepest point and gradually slopes upward to a depth of 2.4 feet near the marsh. The elevation of the creek where it meets the marsh is close to mean high water. Even so, the channel width does not always correspond with the mean high water line boundaries of the creek, and creek waters sometimes inundate and extend back into the marsh at high tide. Because Old Pablo Creek is tidally influenced, any water quality violations in the northern portion of the creek can be expected to also have an adverse effect in the southern portion as well. Creek Width Petitioner has raised the issue of whether the creek is as wide as Hodges represents it to be on the drawings attached to the amended application. This is significant since (a) the engineering plans are based upon the assumption that the measurements in the application are correct, (b) the proposed dimensions (depth and side slopes) of the new channel are dependent upon the existing creek having a minimum width of from sixty to eighty feet, as represented by Hodges, and (c) any excavation outside of the existing channel will result in the removal (destruction) of vegetation and marsh. In his application, Hodges reflects the top width of the creek to be sixty to eighty feet, which width will enable him to dredge the channel to an average depth of five feet below MLW, and maintain a side slope ratio of 3:1. This ratio is necessary because of the composition of the sediment in the creek. The minimum top width required to excavate a channel with 3:1 side slopes to a depth of five feet below MLW is fifty- four feet. Petitioner's exhibit 4 identifies five points along the eastern half of the northern portion which have been measured by the parties to determine the actual width of the creek. Although only five points were measured, it may be inferred that these distances are representative of the creek's width throughout its eastern half. At points five through eight, the widths are forty-nine, thirty-five, fifty and fifty feet, respectively, which are less than the measurements contained in the application. If the channel is constructed with the minimum top width (54 feet) required to have 3:1 side slopes, it will result in the elimination of 6 feet of marsh at point 5, 19.5 feet of marsh at point 6, and 4.1 feet of marsh at both points 7 and 8. This equates to the elimination of approximately .33 acres of marsh. Since the above measurements are representative of the eastern half of the northern portion, other areas of vegetation, albeit in unknown proportions, would also have to eliminated. If, for example, applicant attempts to construct a channel within the confines of the portion of the creek that has a top width of only thirty-five feet (point 6), the maximum channel that could be constructed would be V-shaped with a depth of one foot at low tide. Assuming the remaining part of the channel was excavated to -5' MLW, a stagnant area would develop in this portion of the channel and adversely affect water quality. However, to counter the problem at point 6, Hodges intends to remove one patch of grass 10' by 40' in size to achieve the desired width. Any adverse effects on the adjacent marsh at that particular point would be negligible. Because the estimated creek width is not accurate, even the agency now concedes the engineering plans are no longer useful. As a condition to the issuance of a permit, DER has suggested that Hodges be required to submit new certified engineering drawings depicting the proposed cross-section of the channel. It also suggests that the proposed cross-section comply with the top-widths depicted in applicant's exhibit 53, and depict side-slopes of three to one. It further suggests that a condition for the issuance of any permit be a requirement that the 3:1 ratio be maintained, and that other than point 6, no other grass be removed. Finally, the agency proposes that if the new plans and conditions do not permit a -5 MLW depth, the proposed depth be reduced accordingly. However, the evidence supports a finding that either vegetation must be removed at various points along the eastern half of the creek in order to maintain a 3:1 ratio for side slopes, or the depth must be reduced. By reducing the depth at certain points, stagnant areas in the creek will develop, thereby adversely affecting the quality of the water. Further, as noted hereinafter, the validity of the flushing analysis performed by applicant's experts rests upon the assumption that a -5' MLW uniform depth will be used. Finally, the applicant has not given reasonable assurance that the marsh and habitat will not be adversely affected by the elimination of the vegetation which is necessary to achieve the desired depth and concomitant 3:1 ratio. Therefore, the alternative conditions suggested by DER are neither reasonable or appropriate. The Spoil Area The spoil area to be used by applicant is a 12.5 acre upland disposal site approximately one-half mile northeast of Hodges' property. Applicant does not own the upland spoil site but has obtained easements from the owner which expire in March, 1987. In other words, he must complete all work on the project by that date or lose access to the property. The proposed spoil site is completely diked, and is sectioned off into three sections by interior dikes with overflow pipes. Internal baffles and silt fences are also designed into the area. Uncontradicted testimony established that the spoil area is "unusually well designed". Any discharge from the spoil area will be to Greenfield Creek, a tidally influenced creek connected to the St. Johns River. Discharge, if any, will be outfall from an overflow structure in the third section of the spoil area to a dump area land then by sheet flow to salt marshes adjacent to Greenfield Creek. The vegetation in Greenfield Creek consists of a salt marsh expanse of Spartina alterniTlora and Juncus roemerianus. Both species survive in and are indicative of regular introduction of saline waters, and show high tolerance to varying salinity levels. If saline waters from Old Pablo Creek were introduced into Greenfield Creek, it would have no adverse impact on the Greenfield Creek ecosystem. The size of the site was originally designed for a project of 100,000 cubic yards. The site will retain all |effluent from the dredging. The expected total effluent, both sediment and water, is roughly 5.3 million cubic feet of material, assuming a ratio of 6.7 cubic feet of water for each |cubic foot of sediment dredged. This is slightly lower than the 5.4 million cubic feet total capacity of the site. The supernatant from the discharge being deposited into the first cell of the spoil area will only flow into the next cell when the first cell fills and the level of the supernatant rises above the top of the vertical drain pipe overflow structure. If rainfall events cause the cells to fill with water during dredging and discharge operations, the discharge to the next cell or to Greenfield Creek will be primarily fresh water. This will occur because introduction of fresh rainwater into the brackish water from the dredge area will cause stratification, and the fresh rainwater will form a layer on top that will flow into the overflow structure. Turbidity Effects In removing the mud bottom from the creek to a depth of -5' MLW, some turbidity will occur. This is a natural by- product of using the hydraulic dredge. However, the amount of turbidity, and its effect on the waters at the dredge site and discharge point, are in issue. State water quality standards prohibit the discharge of water with a turbidity level greater than twenty-nine nephelometric units (NTU's) above the background levels of the receiving waters. The evidence indicates that the background turbidity levels at the creek are now in the range of ten to twenty NTV's. Excessive levels can result in adverse effects on local biota such as decreasing productivity by reducing light penetration. Excessive turbidity can also be expected to suffocate organisms. The area to be dredged contains sediment deposited from the surrounding salt marsh and carried in from the ICW. The sediment is composed of 14% clay, with the remainder being sand and silt. This was confirmed by a laboratory analysis conducted by JSI. As a general rule, the coarser the material, the faster it tends to settle out thereby creating less turbidity problems. Therefore, sand, which is of a grain size, can be expected to settle out quickly while silt takes somewhat longer. However, clay size particles are much smaller than silt and do not settle out as easily. Applicant made no laboratory analysis of sediment and consequently he erroneously assumed the mud to be sand and silt, and did not take the clay particles into account. The dredging in the creek will cause the turbidity levels to rise to 150 NTU's. However, the placement of a turbidity screen at the entrance to the ICW will prevent the release of this turbidity into that water body. Therefore, if a permit is issued, such screens should be used by Hodges at the dredge site. At the spoil site, clay size particles will also be included in the matter pumped for discharge. If these particles do not settle out, or are not treated, their discharge into Greenfield Creek (a jurisdictional water) will cause violations of the turbidity standards. To counter their effects, flocculants (chemicals) should be added when necessary to the confined material to aid the particles in settling. If a permit is issued, this should be made a condition in the permit. Dissolved Oxygen Impacts The dissolved oxygen (DO) levels in the creek fluctuate on a daily and seasonal basis. As a general rule, DO levels tend to be lower in warmer weather and during the early morning hours. Therefore, a "worst case" situation will generally occur in the summer months in the early part of the day. State water quality standards contained in Rule 17- 3.121(13), F.A.C., provide that in predominately marine waters, the concentrations of DO "shall not average less than 5 milligrams per liter in a 24-hour period and shall never be less than 4 milligrams per liter." Sampling conducted by petitioner at 5:00 a.m. in early July, 1986 during high tide revealed readings ranging from 3.06 mg/1 in the western portion of the creek to 4.59 mg/1 at the mouth of the creek. Dissolved oxygen levels in the ICW ranged from 3.94 to 4.68 mg/1. Hodges also sampled the creek and ICW in the late morning or early afternoon on August 6,1986 and determined DO levels to be 4.8 mg/1 in the creek and 5.8 mg/1 in the ICW. Testing at that hour of the day produced higher values than those found by JSI. The readings collectively confirm that DO levels in the creek are approximately 1.0 mg/1 less than the DO levels in the ICW. This deficit is primarily caused by the high oxygen demand exerted by the adjacent marsh and muds in the creek. This situation will not be changed by the dredging. The flushing time of the creek channel is an important factor in predicting post-dredging impacts on water quality. Flushing time determines how rapidly waters of the ICW will exchange and mix with the water in the creek channel. Both Hodges and JSI conducted tidal prism studies to determine how many tidal cycles would be required to flush a hypothetical pollutant to 10% of its initial concentration. Under worst case conditions, the channel is expected after dredging to flush every 3 to 4 tidal cycles or 1.6 days. Under more favorable conditions, the creek is expected to flush every 2 to 3 tidal cycles. This compares with the current system which flushes almost 100% every tidal cycle or once every twelve hours. The increased flushing time is due to the significantly greater volume of water that will enter the creek channel after dredging. Because of increased channel depths, the water will move at a slower velocity. Therefore, the oxygen consuming components have a longer period of time to react in the water column. This in turn will cause reductions in DO levels of between .7 mg/l and 1.5 mg/l in the creek. This was confirmed through tidal prism modeling performed by JSI. In this regard, it is noted that JSI's modeling was more sophisticated, better calibrated, and its assumptions were more accurate and reasonable. Consequently, its testing results are considered to be more reliable and persuasive than that of applicant. It must also be recognized that the deepening of those areas that are currently exposed at low tide will allow water to move more easily through the channel and remove some oxygen demanding sediments that now draw from a shallow water column. This will tend to have a beneficial effect on water quality. However, the overall impact of these beneficial effects is unknown, and it was not demonstrated that the otherwise adverse effect on DO will be offset or minimized by the unmeasured impact of deepening the shallow areas. Therefore, applicant has not given reasonable assurance that water quality standards will not be violated by the project. At the same time, it must be further noted that a reduction in the channel depth due to the smaller width of the creek will alter the results of the tidal prism studies, as well as negate some of the beneficial effects caused by deepening the shallow portions of the channel. To what extent the studies are changed, or benefits will be reduced, is not of record. Other Effects of Project As noted earlier, Hodges intends to use one or two boats on the deepened channel. The use of the boats will not introduce pollutants in any significant quantity. Hodges proposes to construct his docks and place rip- rap on the northern side of the widest portion of the creek channel. Little, if any, vegetation will be eliminated by these activities. The use of rip-rap for the construction of the bulkhead is the most environmentally sound means of bulkheading, and will stabilize the shoreline as well as provide habitat for aquatic organisms. The dredging of the creek channel will improve the navigability of the creek, and permit the use of boats in areas where access is now impossible under low-tide conditions. In addition, the sharp bends in the creek will prevent the operation of boats at high speeds. JSI's concern that boats may run aground once they leave the northern portion and enter the southern portion is not meritorious since few, if any, are expected to use the latter part of the creek, and the sharp bends will force boaters to operate at low speeds. Shoaling or erosion of the southern portion will not result from the proposed activities. Indeed, an increased flushing and introduction of new flow into the system may benefit the northern portion. Any situation occurring in that part of the creek should not exceed the rate of siltation occurring under current conditions. The benthic organisms which populate the bottom of Old Pablo Creek include crabs, mussels, barnacles and other species normally associated with estuarine systems. The removal of the mud bottom in the dredging operation may remove some of these organisms. However, this should not significantly change the habitat of these benthic organisms. Rapid recolonization by these species would be expected with recolonization substantially underway within forty-eight hours
Recommendation Based on the foregoing findings of fact and conclusions of law, it is RECOMMENDED that application number 16-39644 of George H. Hodges, Jr. for a dredge and fill permit be DENIED. DONE and ORDERED this 2nd day of December, 1986 in Tallahassee, Florida. DONALD R. ALEXANDER, Hearing Officer Division of Administrative Hearings The Oakland Building 2009 Apalachee Parkway Tallahassee, Florida 32399 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 2nd day of December, 1986.
Findings Of Fact The Parties. The Petitioners, Joseph and Lena Smith, Eugene and Anna Colwell, and Jerry and Brenda Harris, are littoral owners and operators of sports fishing facilities on Orange Lake, a freshwater body of approximately 7,000 acres of open water and 15,000 acres of associated wetlands, whose southern margin constitutes the boundary between Alachua and Marion Counties in north central Florida. Respondent, the St. Johns River Water Management District (hereinafter referred to as the "District"), is a special taxing district created by Chapter 373, Florida Statutes, charged with the statutory responsibility for the management of water and related land resources; the promotion of conservation, development, and proper utilization of surface and ground water; and the preservation of natural resources, fish and wildlife, pursuant to Chapter 373, Florida Statutes. Intervenor, the Sierra Club, Inc. (hereinafter referred to as "Sierra"), is a not-for-profit California corporation registered to do business within the State of Florida. Sierra is an international corporation whose purpose is to explore, enjoy and protect the natural resources of the earth. Intervenor, Florida Defenders of the Environment, Inc. (hereinafter referred to as "Florida Defenders"), is a not-for-profit Florida corporation whose purpose is to preserve and restore Florida's natural resources. Intervenor, the Florida Department of Environmental Protection (hereinafter referred to as "DEP"), is an agency of the State of Florida charged with the responsibility of controlling and prohibiting pollution of the air and water of the State of Florida. See Chapter 403, Florida Statutes. DEP is also charged with responsibility for management of the Paynes Prairie State Preserve. Section 373.026, Florida Statutes. Intervenor, the Attorney General of the State of Florida (hereinafter referred to as the "Attorney General"), sits as a Trustee of the sovereignty submerged lands of the State and as one of the legal owners of the State's property including the Paynes Prairie State Preserve. The Challenged Rules. The District issued an order on November 7, 1993, authorizing the publication of a notice of intent to amend Chapter 40C-2, Florida Administrative Code, by adopting proposed Rule 40C-2.302, Florida Administrative Code, and amending Rule 40C-2.051(6), Florida Administrative Code (hereinafter jointly referred to as the "Challenged Rules"). Proposed Rule 40C-2.302, Florida Administrative Code (hereinafter individually referred to as the "Reservation Rule"), provides: 40C-2.302 Reservation of Water From Use. The Governing Board finds that reserving a certain portion of the surface water flow through Prairie Creek and Camps Canal south of Newnans Lake in Alachua County, Florida, is necessary in order to protect the fish and wildlife which utilize the Paynes Prairie State Preserve, in Alachua County, Florida. The Board therefore reserves from use by permit applicants that portion of surface water flow in Prairie Creek and Camps Canal that drains by gravity through an existing multiple culvert structure into Paynes Prairie. This reservation is for an average flow of [35] cubic feet per second (23 million gallons per day) representing approximately forty five per cent (45 percent) of the calculated historic flow of surface water through Prairie Creek and Camps Canal. The specific authority for the Reservation Rule is Sections 373.044, 373.113, 373.171, 373.216 and 373.219, Florida Statutes. The law implemented by the Reservation Rule is Sections 373.219 and 373.223, Florida Statutes. The proposed amendment to Rule 40C-2.051, Florida Administrative Code (hereinafter individually referred to as the "Exemption Rule"), provides, in pertinent part: 40C-5.2.051 Exemptions. No permit shall be required under the provisions of this rule for the following water uses: through (5) No change (6) Water, whether withdrawn or diverted, when used for purposes of protection of fish and wildlife or the public health and safety when and where the Governing Board has, by regulation, reserved said water from use by permit applicant pursuant to Subsection 373.223(3), F.S. The specific authority for the Exemption Rule is Sections 373.044, 373.113 and 373.171, Florida Statutes. The law implemented by the Exemption Rule is Sections 373.103, 373.171, 373.216, 373.219, 403.501 et seq. and 288.501 et seq., Florida Statutes. Orange Creek Basin. Orange Creek Basin is the name given to the hydrological features of approximately 400 square miles of Alachua, Putnam and Marion Counties, Florida. Orange Creek Basin is a major sub-basin of the Lower Ocklawaha River Basin. Surface water in the Orange Creek Basin flows generally in a north to south direction. Orange Creek Basin is made up of several sub-basins, including Newnans Lake, Paynes Prairie, Orange Lake and Lochloosa Lake sub-basins. Surface water within the approximately 100 square miles of Newnans Lake sub-basin drains into Newnans Lake. When sufficiently high, water in Newnans Lake discharges over a weir structure from the southern end of the lake into Prairie Creek. The weir structure at the southern end of Newnans Lake may be adjusted to control the amount of water flowing into Prairie Creek. The weir was installed in 1966. It was adjusted by the Florida Game and Freshwater Fish Commission in 1976. Water flows south into Prairie Creek, the south and southwest through Prairie Creek to two man-made structures. The first is a gated culvert structure consisting of 3 Culverts (the "Camps Canal Culverts"), through which some of the Prairie Creek water enters Paynes Prairie. The second man-made feature is a levee and a canal named Camps Canal. The levee diverts water in Prairie Creek, which does not flow into Paynes Prairie by gravity, through Camps Canal to the south to the River Styx, which flows into Orange Lake. If the elevation of surface water in Prairie Creek exceeds 58.91 feet National Geodetic Vertical Datum (hereinafter referred to as "NGVD"), a portion of the volume of Prairie Creek will flow, by gravity, into Paynes Prairie through the Camps Canal Culverts. The Paynes Prairie sub-basin covers an area of approximately 49 square miles. Surface water in this sub-basin drains into a natural geological feature known as Alachua Sink. Surface water in the approximately 56 square mile Orange Lake sub- basin flows into Orange Lake. Surface water flows out of Orange Lake through Orange Creek. Outflow is controlled by Orange Lake Dam. The Orange Lake Dam has a fixed crest elevation of 58 feet NGVD. Water levels in Orange Lake must exceed 58 feet NGVD before there is surface water outflow from Orange Lake. Surface water within the approximately 75 square mile Lochloosa Lake sub-basin drains into Lochloosa Lake. Lochloosa Lake has two outlets: Lochloosa Slough in the east and Cross Creek in the south. Cross Creek connects Lochloosa Lake to Orange Lake. Paynes Prairie State Preserve. Prior to the construction of the weir at the outlet from Newnans Lake to Prairie Creek, all surface water from Newnans Lake flowed from Newnans Lake to Prairie Creek unimpeded. Prior to 1927 all surface water in Prairie Creek flowed south into an area known as Paynes Prairie. Paynes Prairie is located in Alachua County. All water in Prairie Creek entered Paynes Prairie and flowed across Paynes Prairie to Alachua Sink. Alachua Sink is a natural geological feature located in the north- central portion of Paynes Prairie. At Alachua Sink surface water enters the Florida aquifer. In 1927 a levee was constructed around the eastern boundary of Paynes Prairie, and Camps Canal was excavated in order to divert water from Paynes Prairie. Due to the levee, water in Prairie Creek was diverted into Camps Canal beginning in approximately 1927. The water flowed into the River Styx and then into Orange Lake. Canals and levees were also constructed within Paynes Prairie to convey surface water in Paynes Prairie into Alachua Sink and Camps Canal. The modifications to Paynes Prairie made in 1927 were intended to drain Paynes Prairie so that the land could be utilized for agricultural purposes, including the raising of cattle. Paynes Prairie continued to be used primarily for the raising of cattle between 1927 and early 1970. In 1970, the State of Florida began acquiring parts of Paynes Prairie. Property acquired by the State was used to create the Paynes Prairie State Preserve (hereinafter referred to as the "Preserve"). Land is still being acquired by the State. The Preserve currently consists of approximately 20,600 acres. Approximately 18,000 acres of the Preserve were acquired within the first 4 years after acquisitions by the State began. Approximately 12,000 acres are considered wetlands. Two major highways, U.S. Highway 441 and Interstate 75 run north-south across the middle and western portion of Paynes Prairie. U.S. 441 was constructed in 1927 and I-75 was constructed in 1964. In 1975 the State of Florida's Department of Natural Resources (which is now DEP) breached the levee at Camps Canal in order to restore part of the water flow from Prairie Creek to the Preserve. In 1979 flashboard riser Culverts were placed in the breach in the Camps Canal levee. In 1988 the Camps Canal Culverts were constructed. The Preserve, a unique land feature, was designated a National Natural Landmark in 1974 by the United States Department of the Interior. No consumptive use permit concerning water that flows into Paynes Prairie or the Preserve has been issued by the District. No consumptive use permits have been issued by the District for surface water withdrawals from Newnans Lake, Prairie Creek or Orange Creek. The Current General Hydrologic Condition of the Preserve. The Preserve is one of the largest continuous wetland systems in Florida and the Southeastern United States. The Preserve and Paynes Prairie constitute one of the largest wetland areas formed by the collapse of a sinkhole, Alachua Sink. Since 1975, at least some water has flowed into the Preserve from Prairie Creek through the Camps Canal Culverts and its predecessors. The "inverts" of the Prairie Creek-Camps Canal Culverts are above the creek-canal bottom. This means that if water in Prairie Creek does not reach a certain level, no water will flow through the Camps Canal Culverts into the Preserve. Under these conditions, all water in Prairie Creek will flow through Camps Canal and eventually to Orange Lake. The amount of water flowing through the Camps Canal Culverts is also limited to a maximum amount due to the size of the Culverts. The exact amount of water that may flow through the Camps Canal Culverts into the Preserve depends on the amount of water in Prairie Creek coming from Newnans Lake and the capacity of the Culverts to move the water. Water flowing into the Preserve through the Camps Canal Culverts constitutes approximately 50 percent of the surface water entering the Preserve. After water flows into the Preserve through the Camps Canal Culverts it flows in a broad, shallow path, referred to as "sheetflow," over the eastern portion of the Preserve. The sheetflow from Camps Canal Culverts creates approximately 550 to 600 acres of shallow marsh community. The water eventually flows into an area known as Alachua Lake in the central portion of the Preserve. Water discharging from Alachua Lake flows through a water control structure consisting of four gated Culverts, known as the Main Structure, into Alachua Sink. Water also enters the Preserve from the north through a tributary known as Sweetwater Branch. Water flows through Sweetwater Branch into Alachua Sink. Sweetwater Branch is channelized over its entire length, preventing water from reaching into the Preserve or Alachua Lake. The District's Purpose in Adopting, and the District's Interpretation of, the Challenged Rules. The District's intent in adopting the Challenge Rules was to reserve water which the District had concluded is required for the protection of fish and wildlife in Paynes Prairie. The District is attempting to carry out its intent by providing in the Reservation Rule that whatever amount of water that may flow through the Camps Canal Culverts by gravity into the Preserve may not be used for other purposes. The District is further attempting to carry out its intent by providing in the Exemption Rule that any amount of water that has been reserved by the District because it is required for the protection of fish and wildlife pursuant to Section 373.223(3), Florida Statutes, exempt from the consumptive use permit process. The Reservation Rule is not intended to reserve a specific quantity of water for the Preserve. Rather, the Reservation Rule reserves only that amount of water that flows through the Camps Canal Culverts by force of gravity. The intent is to allow the natural existing hydrologic regime of the Preserve to continue. The quantity of the water reserved by the Reservation Rule is identified, in part, as follows: The Governing Board finds that reserving a certain portion of the surface water flow through Prairie Creek and Camps Canal south of Newnans Lake in Alachua County, Florida, is necessary in order to protect the fish and wildlife which utilize the Paynes Prairie State Preserve, in Alachua County, Florida. The Board therefore reserves from use by permit applicants that portion of surface water flow in Prairie Creek and Camps Canal that drains by gravity through an existing multiple culvert structure into Paynes Prairie. . . . [Emphasis added]. The last sentence of the Reservation Rule goes on to prove: This reservation is for an average flow of [35] cubic feet per second (23 million gallons per day) representing approximately forty five per cent (45 percent) of the calculated historic flow of surface water through Prairie Creek and Camps Canal. This portion of the Reservation Rule was not included by the District to establish a minimum and/or maximum quantity of water that is being reserved for the protection of fish and wildlife in the Preserve. This portion of the Reservation Rule represents a very condensed summary of the historical hydrologic data relied upon by the District in deciding to reserve water for the Preserve's fish and wildlife. The Exemption Rule was intended to make clear that any time the District reserves water which it determines is required to protect fish and wildlife or the public safety, that no consumptive use permit is necessary. The District's Determination that Water is Necessary for the Protection of Fish and Wildlife in Paynes Prairie. In reaching its decision that the quantity of water flowing through the Camps Canal Culverts by force of gravity into the Preserve is required for the protection of the fish and wildlife of the Preserve, the District relied upon a study of the Orange Creek Basin which District staff had begun in the 1980s. There were three objectives for the Orange Creek Basin study: (a) the first objective of the study was to develop a predictive hydrologic model that could be used to predict water levels throughout the basin and the water courses that connect the various major lakes and prairie systems; (b) the second objective of the Orange Creek Basin study was to develop environmental and hydrologic criteria that could be used to evaluate the environmental impacts of different water management alternatives in the basin; and (c) the third objective was to look at alternatives for management of water within the District. Substantial evidence concerning the manner in which the Orange Creek Basin study was conducted, the results of the study and the rationale for the District's conclusion that the quantity of water flowing through the Camps Canal Culverts by force of gravity is required to protect the fish and wildlife of the Preserve was presented during the final hearing of this case by the District. The evidence presented by the District to support a finding that the quantity of water flowing through the Camps Canal Culverts by force of gravity is required to protect the fish and wildlife of the Preserve was not rebutted by competent subs by the Petitioners. The only witness called by the Petitioners was an expert in hydrology. The Petitioners' expert only suggested that he had questions about the District's hydrologic study. He was unable, however, to testify that the hydrologic study relied on by the District was unreasonable or inaccurate. The Petitioners also offered no evidence to counter the testimony of the District's expert on the environment of Paynes Prairie. The testimony of the District's expert proved that, even without the results of the hydrologic study conducted by the District, the evidence concerning the Preserve's environment supports a finding that the water reserved by the Reservation Rule is required for the protection of fish and wildlife. Generally, the evidence proved that, if the water being reserved is not continued to allow to flow naturally into the Preserve, the range of water fluctuations and the resulting natural impact of the environment of the Preserve will not be achieved. There exists in the Preserve currently, a range of plant communities and fish and wildlife. The nature of those communities, fish and wildlife depends on the amount of water in the communities. The communities range from those existing in upland areas, which have the lowest levels of water, down to deep marshes, where water levels are the greatest. In between are emergent marsh (also called "shallow marsh"), cypress swamps, mixed scrub-shrub wetland, wet prairie, old field, hudric forest, mesic forest and xeric community. The various types of communities are in a state of fluctuation depending on the levels of water flowing into the Preserve. The evidence presented by the District, and was uncontroverted by the Petitioners, proved that these fluctuations are environmentally desirable; that natural fluctuations of water levels in the Preserve are required for the protection of fish and wildlife. It is for this reason, therefore, that the District decided to reserve the amount of water flowing by gravity through the Camps Canal Culverts, and not some specified volume. The Rationale for the District's Finding that Water is Required for the Protection of Fish and Wildlife. Although the District and some of the Intervenors have proposed several findings of fact that support the ultimate finding of fact that the water reserved by the Reservation Rule is required to protect fish and wildlife. Those findings of fact are subordinate to the ultimate relevant fact in this case. Therefore, rather than rewrite all of those subordinate facts, the District's subordinate findings of fact (which cover those subordinate findings suggested by the Intervenors) will be quoted and adopted in this Final Order. The findings of fact of the District quoted and adopted herein which relate to the hydrologic portion of the District's study are as follows. The findings have been modified to reflect terms used throughout this Final Order. The findings of the District adopted are District findings of fact 44 through 74: Surface water hydrologic models are a tool used by water resource professionals to enable them to simulate or calculate certain characteristics of a hydrologic system from data that relates to or is collected from within that system. T. 65, 66, 90, 91, 779. In this basin, the staff of the District developed a surface water model in order to calculate anticipated water levels and discharge volumes at various points throughout the basin expected to be associated with several alternative water management strategies. T. 90, 91, SJ Ex 1 p 27. The specific model used by the District is the Streamflow Synthesis and Reservoir Regulation (SSARR) mathematical model, developed by the U.S. Army Corps of Engineers. This particular model is generally accepted and used in the field of hydrology for the purposes for which it was used here by the District staff. T. 90, 91, SJ Ex 1 p 27. The model combines two types of data, the first of which are "fixed basin parameters" such as drainage area, soil moisture run-off relationships, and storage capacity of the water bodies in the basin. Fixed basin parameters do not change over time. T. 98, 99, SJ Ex 1 pp 32-37. The second type of data used by the model is "time series" data such as rainfall, evaporation, lake elevations and discharges at several points throughout the basin. Time series data does change over time. T. 98, 99, SJ Ex 1 pp 38-40. Rainfall data for the basin is the most important input element for the model because rainfall drives the system from a hydrologic perspective. T. 95. Rainfall data from 5 recording stations scattered over the basin were utilized, with one station located at the University of Florida in Gainesville yielding data for more than 50 years, although only data for the 50 year period from 1942-1991 was used in the model. T. 96, 97, SJ Ex 1 pp 38, 39, 62, 175. The other 4 rainfall recording stations used in the model have recorded rainfall for periods ranging from 11 years to 37 years. SJ Ex 1 p 39. In a basin the size of the Orange Creek Basin, day to day rainfall amounts may vary from one recording station to another, however, on an annualized basis, rainfall amounts are relatively consistent between the rainfall recording stations utilized in the District's model. T. 97, 98, 184, 727. Both the number and location of rainfall recording stations used for the model are adequate to characterize rainfall for the basin. T. 97, 98, 184. Fifty years of hydrologic data were utilized by the District in the model, because corresponding records existed for rainfall, lake levels, and discharge for this period of time. In addition, a 50 year period is more likely to exhibit a full range of hydrologic conditions, such as droughts and floods, than a shorter increment of time would. T. 104. The model utilizes both the fixed basin parameters and the time series data to calculate an associated lake level for any of the lakes in the basin or a discharge measurement at one of several points in the basin for any particular day during the 50 year period represented by the hydrologic data on which the model is based. T. 98-100. The model was initially run to calculate several hydrologic values with existing conditions in place. Existing conditions, for purposes of comparison with other alternatives, assumes the Newnans Lake weir to be in place, the gates to the Camps Canal Culverts to be in an open position and the gates to the main structure Culverts in the Preserve to be in an open position. T. 99, SJ Ex 1 p 83. For all scenarios examined, the model assumes existing land uses to be in place, in all years simulated, in order to allow consistent comparisons of hydrologic conditions over the 50 years for which data was available. T. 134, 135. In the "existing conditions" scenario the model calculates the volume of water discharging from Newnans Lake southward into Prairie Creek for each day during the 50 year period from 1942-1991. T. 100. Discharge measurements were made by District staff at the downstream end of the Camps Canal Culverts from which a rating curve was developed for the structure. T. 101, 102, SJ Ex 1 pp 33, 36. A rating curve is a means by which the flow capacity of a water control structure such as a culvert may be calculated. T. 101, 102. Using the rating curve developed by District staff for the Camps Canal Culverts, the model, having calculated the volume of water moving from Newnans Lake into Prairie Creek, can then calculate the volume of water passing through the Culverts at the Camps Canal Culverts into the Preserve versus the volume moving on southward through Camps Canal to Orange Lake for each day or year during the 50 year period from 1942-1991. T. 101, 102, SJ Ex 1 p 84, Appendix Table E-45. Having calculated the annual volume of surface water entering the Preserve and the annual volume moving into and through Camps Canal to Orange Lake for each of the 50 years between 1942- 1991, District staff then divided the 50 year totals for each by 50 to arrive at a yearly average volume of water going to the Preserve versus a yearly average volume going through Camps Canal to Orange Lake, under existing conditions. T. 101-104, SJ Ex 1 p 84, Appendix Table E-45. Based on the volumes calculated for the 50 year period between 1942-1991, on average, 45 percent of Prairie Creek flow enters Preserve through the Camps Canal Culverts under existing conditions. This equates to 35 cubic feet per second (cfs), or 23 million gallons per day (mgd). T. 103, 605, 606, SJ Ex 1 p 84, Appendix Table E-45. Also based on the volumes calculated for the 50 year period between 1942-1991, on average, 55 percent of Prairie Creek flow goes into Camps Canal and moves on southward to the River Styx and then to Orange Lake under existing conditions. T. 103, SJ Ex 1 Appendix Table E-45. Making a calculation of flow based on 50 years of historic hydrologic data does not guarantee that the next 50 years will be identical to the period during which the calculation was developed, however, it is reasonable to assume that the next 50 years will be statistically similar to the previous 50 years and that hydrologic conditions, on average, will be the same. T. 104, 143. Both the general methodology and the specific model used by the District to quantify the average volume of flow entering the Preserve under existing conditions, which also represents the volume of flow which the rule would reserve for fish and wildlife which use the Preserve, are based on logic and accepted scientific principles. T. 90, 91, 97, 102, 128, 729. The rule in issue does not reserve a specific amount of water for the protection of fish and wildlife using the Preserve, rather, it reserves the amount which will flow by gravity through the existing Camps Canal Culverts with the gates in an open position, which will in essence, maintain the existing volume of flow into the Preserve. T. 604, 605, 624. Thirty-five cfs does not necessarily represent the specific volume of water that will flow into Preserve on a given day, rather, the specific volume would be dependent on hydrologic conditions on that given day. T. 105, 106. Nevertheless, 45 percent of flow, or 35 cfs, or 23 mgd, represents a reasonably accurate calculation, based on the data available, of the average volume of Prairie Creek flow which will enter the Preserve by gravity pursuant to the Reservation Rule. T. 101- 104, 638, SJ Ex 1. With the existing conditions hydrologic regime which the Reservation Rule would continue in place, the model calculates that the mean elevation of Orange Lake would be 57.26 feet NGVD. T. 121, 122, SJ Ex 8 (arithmetic mean). If no Prairie Creek flow were allowed to enter the Preserve and all of its flow went to Orange Lake, the model calculates the mean elevation of Orange Lake to be 57.51 feet NGVD. T. 121, 122, SJ Ex 8 (arithmetic mean). Thus, the mean elevation of Orange Lake rises by only 0.25 feet when all of the Prairie Creek flow is diverted to Orange Lake. SJ Ex 8. The impact of a 0.25 feet change in the mean elevation of Orange Lake from a hydrologic perspective is small given the 11 feet fluctuation in elevations that has occurred naturally over time in the lake. T. 125. By contrast, if no Prairie Creek flow were allowed to enter the Preserve and all of its flow went to Orange Lake, the mean elevation of water levels within the Preserve, as calculated by the model, would decline by 0.65 feet. SJ Ex 7. Eliminating all Prairie Creek flow from the Preserve would decrease the amount of wetted acreage in the central portion of the prairie by up to 2400 acres. T. 203, SJ Ex 1 p 131, SJ Ex 6. In addition, the acreage wetted in the eastern lobe of the Preserve by the sheetflow of Prairie Creek water as it moves from the Camps Canal Culverts to Alachua Lake would also be eliminated. T. 116, SJ Ex 1 p 131. The findings of fact of the District quoted and adopted herein which relate to the environment of, and the alternative course of action considered for, the Preserve are as follows. The findings have been modified to reflect terms used throughout this Final Order. The findings of the District adopted are District findings of fact 79 through 127: The eastern and western lobes of the Preserve are approximately the same elevation and have similar gradients; however, the plant communities within the eastern lobe differ from the plant communities in the western lobe. The plant community within the eastern lobe is predominantly a shallow marsh community while the plant community within the western lobe varies from wet prairie to old field. T. 262, 263; SJ Exs 3, 10B, 10H. For the western lobe of the Preserve, consisting of the area west of U.S. Highway 441, rainfall is the only source of water except when extremely high water levels occur in Alachua Lake. T. 263, 272. When extremely high water levels occur on Alachua Lake water can backflow through the culverts under U.S. Highway 441 and Interstate Highway 75 and inundate the western lobe. T. 272. The eastern lobe of the Preserve is dependent upon sheetflow from Prairie Creek for its source of water. T. 263. Prior to the construction of Cones Levee the sheetflow from Prairie Creek inundated approximately 1,200 acres of the eastern lobe. Today, however, sheetflow inundates directly 600 acres and indirectly another 600 acres in the eastern lobe. T. 264, 265; SJ Ex 10B. Without the Prairie Creek sheetflow, the biological character of the eastern lobe would change to resemble the more terrestrial nature of the western lobe. T. 263, 272, 518. The fish and wildlife inhabiting the Preserve are totally dependent upon its surface water hydrology. T. 276. Of the 21 species of plants living within the Preserve that are listed by the federal government or the State of Florida as endangered, threatened or species of special concern, four species are wetland species. T. 268, 358, 359, 360. Twenty species of animals living on the Preserve are listed by the federal government or the State of Florida as endangered, threatened or species of special concern. Seventeen of these species are wetland dependent. T. 269. Birds, including a number of species listed as endangered or threatened such as great blue herons, woodstorks, anhingas, limpkins, sandhill cranes and ospreys, use the shrub communities around Alachua Lake, the cypress swamp in the eastern lobe and other areas of the eastern lobe for breeding, nesting, and foraging. T. 269, 270, 271, 277, 364, 365. Several species of migratory ducks overwinter in the central area of the Preserve, particularly in the shrub wetland communities around Alachua Lake. Without the flow of water from Prairie Creek the open water in Alachua Lake would be lost and consequently, the overwintering habitat for the ducks would be lost. T. 240, 270, 518. Immature bald eagles use the eastern lobe wetlands for foraging. T. 270. Additionally, the northern harrier, American kestrel and peragrine falcon use wetlands within the Preserve as foraging habitat. T. 364, 365. Mammals, such as river otters, brown water rat, bobcats, bats and long-tailed weasels, use the wetlands within the Preserve, and the eastern lobe particularly, as breeding, nesting, and/or foraging habitat. Reptiles, such as the American alligator, live in the Preserve. T. 270-271, 375, 377-378; SJ Ex 14. The diversity and abundance of animals living in or using the Preserve is greater in the eastern lobe and central area than the western lobe. T. 273, 274. Different species of birds frequent the western lobe. Typically, species more indicative of a drier terrestrial environment are found in the western lobe. T. 272. If the Prairie Creek flow is diverted from the Preserve, the eastern lobe would be driven towards a drier, terrestrial habitat and the functions of the eastern lobe wetlands would be totally lost. T. 277. The sheetflow across the eastern lobe is a unique feature of the Preserve, and without this sheetflow animals such as the endangered brown water rat would not live there. T. 277. Without the Prairie Creek sheetflow, animals dependent on Alachua Lake and the wetlands, such as the brown water rat and the woodstork, would have to find other areas to live, forage, breed and nest due to the loss of wetlands and open water habitat. T. 277, 518. When the water levels in the Preserve are low and wetlands are lost, the birds that depend on the wetlands for nesting will not nest in the Preserve nor elsewhere. T. 532. The wetland communities within the Preserve require a range of water level fluctuations which includes periods of high water levels, average water levels and low water levels. Wetlands must remain wet long enough to exclude upland plants and to conserve hydric soils, yet sufficiently dry often enough to allow germination of wetland plants and the compaction and oxidation of flocculent sediments. T. 293, 294, 298, 299, 310, 311; SJ Ex 1 pp. 23-25. Periods of high water levels maintain lower swamp and shallow marsh habitats, facilitate the dispersal of the seeds of wetland plants, allow wetland species that normally occur at lower elevations to move up into the forested communities, prevent the encroachment of upland species into the upper wetland area, and advance the transportation of organic matter from uplands to wetlands. Inundation of the floodplain and forested communities provide nesting, spawning, refugia, and foraging habitat for fish and other aquatic organisms. T. 294, 296, 310, 311; SJ Ex 1 pp 23- 25. The frequency, timing and duration of high water levels influence the composition and survival of wetland forests. T. 310, 311; SJ Ex 1 p 23. Periods of average water levels create and maintain organic soils and maintain wetland habitat for wetland dependent wildlife. T. 293, 297; SJ Ex 1 p 25. Periods of low water levels rejuvenate floodplain wetlands by allowing seed germination and growth of wetland plants. Seeds of many wetland plant species require saturated soils without standing water in order to germinate. T. 291, 293, 298, 299; SJ Ex 1 pp 24, 25. Periods of low water levels increase the rate of aerobic microbial breakdown and decomposition of organic sediments, and allows the consolidation and compaction of flocculent organic sediments. The consolidation, compaction and decomposition of flocculent organic sediments improves substrates for fish nesting and seed germination. T. 298, 299; SJ Ex 1 pp 24-25. Upland animals use the wetlands during periods of low water levels for foraging and breeding. T. 298, 299. Three elevation transects were used by District staff to identify the elevations of plant communities on the Preserve and develop environmental criteria for the Preserve floodplain. T. 302, 305-306; SJ Ex 1 pp 26, 27, 31, 60. Ecological criteria were developed by District staff to accommodate the hydroperiod requirements of lake and wetland biota. The ecological criteria consisted of hydrologic duration, i.e. how long an area is flooded; and recurrence intervals, i.e. how often an area is flooded. T. 304, 309; SJ Ex 1 pp 23, 61. Maintaining appropriate hydrologic durations and recurrence intervals for plant communities enables the plant communities to support populations of fish and wildlife. T. 307, 312. The District identified the following five significant water management levels: infrequent high water level, frequent high water level, minimum average water level, frequent low water level, and infrequent low water level. The water management levels characterize zones along the elevation gradient of the Preserve. T. 307, 308; SJ Ex 1 p 61. The five different recurrence intervals and the associated hydrologic durations became the hydrologic criteria used by District staff for the water management levels. T. 312. The District evaluated six water management alternatives for the Preserve: the "existing conditions" alternative which simulated the current morphometry of the Paynes Prairie sub-basin; the "total restoration" alternative, under which all the Prairie Creek flow is restored to Paynes Prairie; the "50/50 management" alternative, under which the inflow capacity at the Camps Canal Culvert is reduced by 50 percent and the outflow capacity at the main structure at Alachua Lake is reduced by 50 percent; the "elevation threshold" alternative, under which when the water level at Newnans lake is at 66 feet NGVD or above and the water level at Orange Lake is at 56 feet NGVD or below, then the inflow structure at Camps Canal Culvert is reduced by 50 percent while the outflow capacity at the main structure is maintained at 100 percent; the "Sweetwater Branch" alternative, under which flow from Prairie Creek is replaced by Sweetwater Branch flow; and the "no restoration" alternative, under which the entire flow from Prairie Creek is diverted to Orange Lake. T. 313, 314; SJ Ex 1 p 119. Based upon the hydrologic durations and recurrence intervals defined by the ecologic criteria, the District determined five water management levels for each water management alternative. SJ Ex 1 p 61. The five water management levels and the associated recurrence intervals and hydrologic durations form a fluctuation management regime. The fluctuation management regime for each water management alternative was evaluated with respect to the existing biological features of the aquatic and wetland communities of the Paynes Prairie sub-basin. SJ Ex 1 pp 61, 124, 125. Under the total restoration alternative the water levels on the Preserve would rise thereby improving the hydrologic regime on the prairie, but the possibility of flooding and damaging U.S. Highway 441 would also increase. The minimum average water level of Orange Lake would decrease by 0.67 feet. T. 331, 333; SJ Ex 1 pp 125-130; SJ Ex 8. The no restoration alternative would not satisfy all the hydrologic criteria. The minimum average water level on the Preserve would decrease by 1.01 feet under this alternative. Under this alternative the acreage inundated by the minimum average water level is reduced by approximately 2,400 acres. Additional wetland acres are lost due to the absence of the Prairie Creek sheetflow across the eastern lobe. The minimum average water level in Orange Lake would increase by 0.16 of a foot. T. 324, 334-336; SJ Ex 1 pp 124, 125, 131; SJ Ex 8. Eliminating the flow of Prairie Creek into Paynes Prairie would be detrimental to the current and future biological conditions on the Preserve. SJ Ex 1 p 131. Under the 50/50 management alternative the average flow from Prairie Creek would be reduced from 45 percent to 22.5 percent and the outflow to Alachua Sink would be reduced by 26 percent. T. 337; SJ Ex 1 p 131. The high water levels and the low water levels increase slightly within the Preserve and Orange Lake under the 50/50 management alternative; however, the residence time of water and the concentration of nutrients, including phosphorous and nitrogen, would increase thereby degrading water quality within the Preserve. T. 338, 340, 341; SJ Ex 1 pp 124, 125, 127, 128, 131, 132; SJ Exs 7 and 8. The reduction of sheetflow from Prairie Creek under the 50/50 management alternative would adversely affect the wetlands in the eastern lobe. SJ Ex 1 p 132. Under the elevation threshold management alternative water levels within the Preserve would decrease. The Preserve would receive less water during some periods of naturally high flows reducing the duration and frequency of inundation in the eastern lobe wetlands and, therefore, negatively impacting wildlife dependent upon seasonal high flows. T. 344; SJ Ex 1 p 133; SJ Ex 7. The flow provided by Sweetwater Branch provides approximately 15 percent of the Preserve's average inflow, whereas Prairie Creek provides approximately 50 percent of the Preserve's average inflow. T. 346. Sweetwater Branch is more or less confined to a channel and discharges into Alachua Sink bypassing the Preserve and its eastern lobe. T. 347. Under the Sweetwater Branch alternative the eastern lobe would be deprived of the sheetflow essential to the maintenance of wetlands and the wildlife in the eastern lobe. The eastern lobe would dry out and the plant communities would change to old field or wet prairie. The functions of the plant communities to wildlife would also change under this alternative. T. 347. The Sweetwater Branch alternative would not support fish and wildlife in the eastern lobe of the Preserve. T. 347. The water quality of Sweetwater Branch is poor. Sweetwater Branch has higher concentrations of nitrogen and phosphorous than Prairie Creek. If the nutrient-rich Sweetwater Branch water was diverted onto the Preserve the types and abundances of vegetative communities would change from native vegetation to monocultures of nuisance vegetation that thrive in nutrient-rich environments. T. 346-349; SJ Ex 1 pp 133-134. The existing conditions alternative provides over the long term an average of approximately 45 percent of the Prairie Creek flow by gravity flow through the Camps Canal Culvert to the Preserve. T. 355, 356; SJ Ex 1 p 121. Under the existing conditions alternative, the five hydrologic criteria for both the Preserve and Orange Lake are met and the water level elevations meet the desired recurrence intervals and hydrologic durations. T. 324, 350, 351. The fluctuation management regime provided by the existing conditions alternative partially restores sheetflow from Prairie Creek to the Preserve in sufficient, but fluctuating, water quantities necessary to maintain habitat for fish and wildlife within the eastern lobe. T. 350, 351. It is essential for the protection of the fish and wildlife that utilize and depend upon the Preserve to maintain the flow of Prairie Creek into the Preserve. T. 351, 517. The Preserve needs flow from Prairie Creek in volumes reserved by the proposed rule to protect its fish and wildlife. T. 351. The management levels established by the environmental criteria used for each of the water bodies in the basin will continue to be met in Orange Lake with an average of 45 percent of Prairie Creek flow going to the Preserve and 55 percent going to Orange Lake. T. 432, SJ Ex 1 pp 127, 134, 146. Based upon the substantial and uncontroverted evidence in this case, it is concluded that the water reserved by the Reservation Rule is required for the protection of fish and wildlife of the Preserve.
Findings Of Fact On November 13, 1990, the St. Johns River Water Management District (SJRWMD) Governing Board voted to issue to the University of North Florida (UNF), a Management and Storage of Surface Waters (MSSW) permit #4-031-0359GM for the construction and operation of a surface water management system associated with road and parking lot construction on the UNF campus in Jacksonville. On the same day, the board also voted to issue water resource management permit #12-031-0007G authorizing dredging and filling in waters of the state related to said road and parking lot construction. Petitioners timely petitioned for hearing, challenging the SJRWMD decision to award the permits. Neither the standing of the Petitioners nor the Intervenor is at issue in this proceeding. The UNF campus contains approximately 1000 acres in Duval County, Florida, and lies completely within the jurisdiction of the SJRWMD. The UNF is an agency of the State of Florida, and has the apparent authority to make application for the referenced permits. The UNF campus is designated as a wildlife sanctuary. Of the 1,000 acres, wetlands constitute approximately 450 acres. Prior to development of the UNF campus, the property was utilized for silviculture, with pine trees farmed and harvested on the land. The property was and continues to be crossed by numerous logging roads and trails. During the 1970's extensive alterations occurred in the property related to local development activity. Swamps and stream flows were disrupted. Wetlands headwaters were altered by the construction of lakes. Adjacent highways and office developments were constructed, borrow pits were utilized, and wetlands were filled. There is some planted pine forest, generally no more than 40 years old, remaining on the UNF campus. Much of the UNF property remains undeveloped and consists of a variety of common habitat, including pine flatwoods, oak hammocks, and various wetlands. The existing UNF campus is crossed by a series of wetlands located generally north to south through the property. The wetlands include Sawmill Slough, Buckhead Branch, Boggy Branch, and Ryals Swamp. The water in the area flows to the southeast. Previous construction of UNF Drive required the crossing of Buckhead Branch and the filling of portions of Boggy Branch. The UNF now proposes to construct approximately .66 miles of three lane roadway across the southern portion of the campus to connect the existing UNF access drive into a loop (the "loop" road), approximately .34 miles of two lane roadway from a point on the loop into an upland area in the southeastern part of the campus (the "eastern connector"), pave an existing parking lot near UNF nature trails, and construct related surface and stormwater management facilities. The purpose of the loop road project is to enhance access around the UNF campus. The eastern connector will provide access to an undeveloped upland area of the campus. The expansion is related to and required by the anticipated continued growth of the University. The on-campus silviculture logging roads and trails, which remain from the pre-development period, have long been utilized by the UNF community as nature trails. The trails bisect a substantial part of the remaining undeveloped campus. In 1978, approximately 12 miles of trails were listed by the UNF with the United States Department of the Interior as National Recreational Trails, a national collected listing of recreational trails. These named trails, (the "maintained trails" as identified below, and the White Violet, Switchcane, and Turkey Trace trails) were marked by means of paint blazing and signs. In some locations, such markings, and at least one sign remain visible, even though the paint markings have not been repainted since the original blazing occurred. The UNF is fiscally unable to maintain all twelve miles of trail for general public use. The UNF concentrates maintenance and education efforts on three of the trails, the Blueberry, the Red Maple and the Goldenrod (hereinafter referred to as the "maintained trails"). The maintained trails, approximately 6 miles in total length, are signed and marked to provide clear and safe direction through the area. For public use, the UNF provides educational materials related to the maintained trails. Approximately 17,000 persons use the maintained trails annually. Two rangers are employed to supervise the maintained trails. In the most recent two year fiscal period, about $21,000 has been spent rebuilding and upgrading parts of the maintained trails. The UNF provides no security for the logging trails (hereinafter the "unmaintained trails") which are not part of the maintained trail system, and does not encourage the use of the old logging roads as trails. The proposed road construction project will adversely affect the use of the unmaintained trails because the road projects will intersect and overlap several of the trails. The evidence fails to establish that the UNF is without authority to amend, alter, relocate or abandon trails listed with the United States Department of the Interior as National Recreational Trails, or that notice need be provided to the Department prior to such action. There are additional recreational facilities available on the UNF campus, including two jogging trails, as well as a multi-sport facility in the north part of the campus. Approximately 10 total miles of trails exist (including the maintained trails and excluding the unmaintained logging trails). Persons who travel to the maintained trails by automobile currently park in an unpaved lot. The proposed roadway construction for which permits are being sought includes expansion and paving of the nature trail parking lot. This improvement will provide for better access to, and increased utilization of, the maintained trails and eliminate maintenance problems experienced in relation to the unpaved parking area. Notwithstanding the adverse impact on current use of the unmaintained logging trails, the project will enhance recreational development. Operation of the stormwater system, which will result in improved water quality discharged into the receiving waters, will not adversely affect recreational development. Although the recreational values of the impacted unmaintained trails will be adversely affected, on balance the additional access to the maintained trails and the recreational opportunities presented elsewhere on the UNF campus negate the impact on the unmaintained trails. Construction of the roadway will adversely impact portions of the Boggy and Buckhead Branches, which contains wetlands (as defined by, and under the jurisdiction of, the SJRWMD) and waters of the State of Florida (as defined by, and under the jurisdiction of, the Florida Department of Environmental Regulation, which has authorized the SJRWMD to review projects on the DER's behalf). The extent of the wetland impact was determined by the UNF and corroborated by the SJRWMD in an reliable manner. The wetlands impact areas are identified as follows: Area 1, at the upper margin of Boggy Branch, includes slash pine canopy and mixed bay trees; Area 2 is primarily second growth loblolly bay canopy, dense undergrowth, swamp. The loblolly is approximately 20 years old; Area 3 is a west flowing connection between Boggy and Buckhead Branches; Area 4, (the Buckhead Branch crossing), is bay canopy and bottomland hardwood. Areas 1, 2 and 4 will require filling for the construction of the loop road. Area 3 requires filling for the construction of the eastern connector. A total of approximately 2.3 total acres of forested wetlands are included within the impacted area. Of the 2.3 acres identified as wetlands for MSSW permitting purposes, 1.5 acres are classed as waters of the state for purposes of dredge and fill permitting. The wetlands are generally classified as fair to poor quality, although there is a limited wetland area classified as fair to good quality. The wetlands impact of the project on wetland dependent and off-site aquatic species would, without mitigation, be unpermittable. The loop road project includes three drainage areas. Accordingly to plans, drainage area #1 is served by curbs and gutters into storm sewers and discharging into wet detention pond E, drainage area #2 is served by curbs and gutters into storm sewers and discharging into wet detention pond F, and drainage area #3 is served by curbs and gutters discharging into a dry retention swale located adjacent to the road. Stormwater management and treatment for the eastern connector will be provided by a swale system located adjacent to the eastern connector. The western portion of the loop road and the newly paved nature trail parking lot will be separately served by a dry swale system and two retention ponds at the newly paved nature trail parking lot. Wet detention ponds retain the "first flush" stormwater runoff and discharge the water at a reduced rate through a "bleed down" structure. Pollutant removal occurs when first flush runoff is retained and mixed with additional water. Pond and soil organisms and littoral plants provide additional treatment. Such ponds are effective and require minimal maintenance, generally involving removal of nuisance species and cleaning of the "bleed down" structure. Oil skimmers will prevent the discharge of oils and greases from the site. The wet detention ponds have side slopes no steeper than a 4 to 1 horizontal to vertical angle and will be mulched or vegetated to prevent erosion. Dry retention facilities retain the "first flush" runoff and attenuate peak stormwater discharge. The water within the dry swale is filtered as it percolates down through the soil. Maintenance of dry swale systems requires mowing and removal of silt buildup. The design of the system provides that the post development peak rate of discharge will not exceed the pre-development peak rate of discharge for a 24 hour duration storm with a 25 year return frequency. The project will not cause a reduction in the flood conveyance capabilities provided by a floodway. The project will not result in flows and levels of adjacent streams, impoundments or other water courses being decreased so as to cause adverse impacts. The projects detention basins will provide the capacity for the specified treatment volume of stormwater within 72 hours following a storm event. The project is not located in and does not discharge directly to Class I or Class II waters, to Class III waters approved for shellfish harvesting, or to Outstanding Florida Waters. The receiving waters for the system are Boggy and Buckhead Branches, both Class III surface waters. Operation of the system will not cause or result in violation of state water quality standards for the receiving waters. The discharge from the system will meet Class III water standards. There is no evidence that operation of the system will induce pollution intrusion. The design and sequence of construction includes appropriate Best Management Practice provisions for erosion and sediment control, including silt barriers and hay bales. Such provisions are required by the SJRWMD permit conditions. Silt barriers will completely enclose the dredging locations. The bottoms of silt curtains will be buried and will extend 3.5 to 4 feet above the land surface. Slopes will be stabilized by sodding or seeding. The locations of the wet ponds and dry swales, nearby the roadways, will facilitate maintenance activities. Maintenance requirements are included within the SJRWMD permit conditions and are sufficient to ensure the proper operation of the facilities. Although the Petitioners asserted that prior violations of SJRWMD rules related to water quality discharge by the UNF indicate that the UNF is not capable of effectively and adequately operating and maintaining the system, the evidence establishes that the permit conditions are sufficient to provide for such operation and maintenance. The project also includes replacement of an existing culvert at a connection between Boggy and Buckhead Branches. The existing culvert is impounding water during the wet season. The replacement culvert will be installed at the connection floor elevation and will serve to restore the natural hydrology. The new culvert will also be substantially larger than the existing pipe, and can allow fish and wildlife passage under the road. In order to mitigate the impact of the project on wetland dependent and off-site aquatic species, the UNF has proposed to create a 6.3 acre freshwater forested wetland at a site contiguous to Buckhead Branch. The wetlands creation project includes 2.9 acres of submerged wetlands and 3.4 acres of transitional wetlands. Of the 6.3 acres, 4.1 acres of the created wetlands are designated to mitigate the adverse impacts related to the dredge and fill activities. The mitigation proposal constitutes a ratio of 2.7 acres of wetlands creation for every acre of wetland impact. The mitigation site is a low upland pine flatwood and mesic flatwood area surrounded on three sides by wetlands related to Buckhead Branch. The mitigation area will be scraped down to a suitable level and over-excavated by six inches. The elevation of the proposed wetland creation area is based upon water table data and surveying of the Buckhead Branch, located adjacent to the proposed mitigation area, which serves as the wetlands reference area. The UNF monitors surface and ground water elevation in the proposed mitigation area and in Buckhead Branch, and records rainfall amounts. The hydrology of the proposed wetland creation area is based upon the connections of the created wetlands with Buckhead Branch and is sufficient to assure an appropriate hydroperiod. The six inch over-excavation will receive muck soils removed from the impacted wetland areas. The subsurface soils in the wetland creation area are, because of the existing water table level, compatible with the wetland creation. The muck soil will naturally contain seeds and tubers of appropriate vegetation. Additionally, wetland trees, based upon trees in adjacent wetland areas, will be planted in the wetland creation. Prior to planting, the UNF will be required to submit an as-built survey demonstrating that the hydrology and elevation newly- created wetland is proper. The UNF proposal to monitor and maintain the created wetland includes physical and aerial examination of the site, which will be protected by a deeded conservation easement. The monitoring and maintenance plan will continue for three years. The mitigation effort must achieve a ground cover of not less than 80% to be considered successful. Nuisance species will comprise less than 10% of the site's vegetation, and excessive nuisance species will be removed. The UNF is required to periodically report the status of the site to the SJRWMD. The mitigation proposal is adequately detailed and sufficient to offset adverse impacts to wetlands resulting from construction and operation of the system and the dredge and fill project. The wetland creation permit conditions indicate that the wetlands will function as designed and approved by the SJRWMD. The wetland creation is greater in size than the impacted wetlands, will replace the habitat and function of the impacted wetlands and will offset the adverse impacts of the loss of existing wetlands. There will be no impact on any threatened or endangered animal species. The evidence that such species utilize impacted sites is limited. Existing utilization of the impacted site will be accommodated by the remaining wetlands and the created wetland mitigation area. There is no evidence that fish will be adversely affected by the project. Construction and operation of the system will not cause adverse changes in the habitat, abundance, diversity or food sources of threatened and endangered species or off-site aquatic and wetland dependent species. More than five years ago, a bald eagle, listed as endangered by the State of Florida, was observed perched on an upland tree in an area where a retention pond will be constructed. The eagle was not nesting or feeding at the time of observation. The closest known eagle's nest is more than four miles away from the site. None of the impacted area provides appropriate feeding ground for a bald eagle. Colonies of red-cockaded woodpeckers exist between one and one half to ten miles away from the UNF campus. Red- cockaded woodpeckers have been observed on the UNF campus but not in the vicinity of the areas to be impacted by the project. Red- cockaded woodpeckers habitat pine trees at least 50 years old. While the existing pine may provide red-cockaded woodpecker habitat in the future, the pine trees to be impacted by this project are not suitable habitat for red-cockaded woodpeckers at this time. There are no pines on the UNF campus which would currently provide suitable red-cockaded woodpecker habitat. Woodstorks have been sighted on the UNF campus, but not in the impacted area or the mitigation area. Woodstorks feed in areas dissimilar to the impacted areas, therefore there should be no impact on the species. Gopher tortoises have been observed on the UNF campus, but not in the impacted wetland areas or in the mitigation areas. There is no evidence that gopher tortoises would be impacted by this project. A number of animal species identified as wetland dependent have been observed on the campus. However, the evidence of actual utilization of impacted areas by such species is unclear as to frequency and manner of utilization. Such wetland-dependent species are capable of utilizing proximal habitat and will be absorbed by the unimpacted wetland acreage on the UNF campus. Further, the impact on potential habitat caused by the project will be effectively mitigated through the created wetland area. Five hooded pitcher plants are located within the wetland impact area and will be destroyed by construction activities. The hooded pitcher plant is listed by the State of Florida as a threatened species, however, the plant is common in wet areas throughout Duval, Clay, St. Johns and Nassau Counties. Because the muck soils removed from the area will contain seeds, roots and rhizomes from existing vegetation, the plants will likely reproduce in the created wetland area which will contain the muck soil removed during the permitted construction activity. There is no evidence that the dredge and fill project will adversely affect public health, safety and welfare. There are no significant secondary impacts resulting from the proposed project. The SJRWMD considered the environmental impacts expected to occur related to the construction of the roadways for which the permits are sought. In this case, the anticipated secondary impact of the project relates to the effect of automobiles on existing wildlife. The evidence does not establish that there will be such an impact. The road poses no obstacle to wildlife migration. The replacement of the existing culvert with a new culvert at the proper ground elevation may provide enhanced access for some wildlife. The cumulative impacts of the project include the potential expansion of the eastern connector which would require the crossing of Boggy Branch, and future building construction in the southeast portion of the UNF campus. There is no evidence that such impacts, which would require additional permitting, could not be offset with additional mitigation at such time as the permitting is sought.
Recommendation Pursuant to notice, the Division of Administrative Hearings, by its duly designated Hearing Officer, William F. Quattlebaum, held a formal hearing in the above-styled case on June 11-12, 1991, in Jacksonville, Florida.
Findings Of Fact By various purchases during the period 1967-1969, Petitioner acquired over 14,000 acres of land in the eastern sector of central Florida. About 12,000 acres of the land lie in Volusia County and the remainder in the northern part of Brevard County. Petitioner registered various public offering statements for resale of this land with the Florida Land Sales Board. In 1967, pursuant to an act of the State Legislature, the Circuit Court of the Seventh Judicial Circuit of Florida entered judgment creating and incorporating the South County Drainage District which included Petitioner's land in Volusia County. Later attempts by judicial action to extend the Drainage District boundary lines to include Petitioner's land in Brevard County were unsuccessful. A 1967 agreement between Petitioner and the Drainage District provided that a drainage plan would be implemented by the District with funds for construction being advanced by Petitioner. This plan consisted of dead-end graded roads and a system of ditches and canals that were to be constructed and maintained by the Drainage District, with purchasers of the property to be assessed for the cost of the facilities. In 1972, Volusia County adopted a home rule charter which abolished the South County Drainage District and transferred its powers and functions to the county. In 1973, an agreement was entered into between Petitioner and Volusia County providing for the transfer to the county of the functions, responsibilities, and obligations of the Drainage District, and assigning to Petitioner the right to petition the State for approval of the drainage plan. Under the agreement, a Special Improvement District was created by the County (testimony of Trella, Maise1, Exhibits 1, 2, 25, 26, 27). The land acquired by Petitioner had been designated as Cape Atlantic Estates and was divided into tracts or lots in a grid system which was a series of rectangular squares with intersecting roads. Initially, the tracts were two and 1/2 acres each and eventually they were halved and sold in one and 1/4 acre plots. A typical offering statement provided that the "predeveloped tracts" were subject to road and drainage rights-of- way, and that purchasers, after paying their contracts in full, would receive free and clear title to the property. It was further stated that physical access would be obtained over rough graded dirt roads to be completed by December 31, 1973, and that when drainage facilities were completed the land would be dry. It was specifically pointed out that it was not a "homesite" offering nor was it part of a recorded plat, but offered as part of a section, township and range. However, the statement also noted that facilities such as elementary schools, churches, and fire, and police protection were available in neighboring communities. It also indicated that there was no water supply, sewage, public utilities, or public transportation to the property. Sales commenced in 1967 and, by the middle of 1971, approximately 98 percent of the tracts had been sold, primarily to out-of-state purchasers. The bulk of the sales were made by telephone contacts initiated by Petitioner's salesmen. Some 5,000 purchasers bought tracts in the development on contracts which were of eleven to twelve years in duration. The property in question is described as coastal low lands that consist of essentially level terraces. The surface drainage of the land is poorly-developed and inefficient. The terraces begin at the Atlantic Ocean on the east and progress westward to a maximum altitude of about 29 feet in the project area. The Atlantic coastal ridge functions as a divide between the St. Johns river and the coastal drainage basin called Turnbull Hammock. West of the ridge, surface drainage generally is toward the St. Johns river, and east of the ridge drainage is into Turnbull, Hammock which leads to Turnbull Creek and thence to the Indian River. The region has large swamp and marshland areas and sandy surface soils which are intermittently underlain by hardpan at shallow depths which impedes rainfall infiltration. Much of the area is covered with ponds during the wet season creating swampy conditions. The climate supports heavy growth of native pine and scrub oak trees in the sandy soils. Cypress trees prevail in the wet bottomlands. Turnbull Hammock occupies the eastern quarter of the tract and is flat and heavily-wooded. It serves as a catchment for surface runoff from the lands immediately to the west and also for lands outside and north of the project. The Turnbull Hammock natural drainage basin involves about 48 square miles. Highway 1- 95 - traverses the center of the area in a north-south direction. The land is in a primitive state and is mostly unused with the exception of minor cattle grazing areas. Subsurface water leaving the Cape Atlantic Estates to the east surfaces in the Turnbull Hammock and drains to the south into the Indian River. On the west side, the tendency of the water is to move west and surface in cypress sloughs, eventually reaching Buck Lake, an area to the southwest. During flood conditions, when surface waters are high, the western subsurface water could make its way in time to the St. Johns River. The original drainage plan was aimed at decreasing the retention of surface water and using controlled measures to improve runoff in order to prevent flooding and soil erosion. Some nine percent of the property has standing water or ponding and, although in many of the sand ridges, this is not a serious problem because the rainfall quickly dissipates into the soil, in those areas were the soil is heavily interspersed with hardpan, there is slow percolation. Some 26 percent of the land area floods during rain showers. The plan was to remove the standing surface water by a network of canals, ditches and swales and, to achieve these goals, regulating devices were to be installed at two major discharge points of the system. The plan incorporated a main canal located just west of 1-95 which would drain the western Volusia County portion of the project area through an existing 9' X 12' double box culvert under 1-95 into a north outfall canal and ultimately into Turnbull Hammock. The remaining portion of the western section, some 2300 acres in Brevard County, was planned to be drained to the south whereby water would exit the property through a 142 acre storage reservoir that was considered to have sufficient capacity to retain the water during a 50 year flood condition and yet not exceed the existing natural discharge rate. Since Turnbull Hammock is considerably lower than the western side of the property, a self regulating control gate was considered necessary to maintain the water level of the canal in Volusia County at a level of 21 feet mean sea level. In the Brevard County portion, the main canal water level was designed to be kept at an elevation of 20 feet mean sea level by a fixed control structure at the reservoir discharge. It was planned that water would be collected from the area by lateral swales and ditches which would flow into the main canal (testimony of Trelia, Garcia; Exhibits 2,3,4 & 15). The main canal for the project was constructed in 1970. This canal generally parallels the west side of 1-95 in the project area and is approximately 14 1/2 miles in length, some 90 to 100 feet wide and five to six feet in depth. It had been estimated that all the improvements for the project would be completed by December 31, 1973. In early 1971, the Drainage District was in the design stages for the next phase when it learned that Volusia County had adopted the home rule charter that abolished, the South County Drainage District. At this point, work on the project stopped and nothing further was done toward completion of the improvements to the land. In the middle of 1972, after negotiations with Volusia County, Petitioner became aware that various state agencies, same of which had come into being since the original purchase of the land, might have some responsibility in connection with the project. The Department of Pollution control, Department of Natural Resources, the Game and Fresh Water Fish Commission, and the Trustees of the Internal Improvement Trust Fund were contacted to see if they had any requirements as to the proposed improvements. The Department of Pollution control was the only agency which expressed an interest or concern in the matter. Petitioner also ceased sales in the middle of ;1972 after discussions with the Florida Land Sales Division, because of the uncertainty of the situation at that time. During the remainder of 1972, Petitioner's representatives had various discussions with officials of the Department of Pollution Control at Tallahassee, but was advised that nothing definitive could be accomplished on the drainage plan pending a resolution of the status of the South County Drainage District which was in litigation at the time. Around October, 1972, as a result of discussions with various county officials and the Department of Pollution Control, Petitioner decided that an environmental impact study would be, beneficial and therefore retained the services of Brevard Engineering Company of Cape Canaveral, Florida, to make such an environmental assessment of Cape Atlantic Estates. This report was completed in February, 1973, and transmitted to the Department of Pollution Control in April. Although there were numerous conversations with Tallahassee representatives of the Department of Pollution Control during the remainder of the year, it was not until early 1974 that petitioner was advised it should start discussing the matter with the Department's central regional office in Orlando. A meeting was held at Orlando between Petitioner's representatives and officials of the regional office in March, 1974 at which time the details of the project were reviewed. Mr. Woods, the regional engineer for the Orlando office at that time, indicated that he wished to study the matter further because he was not familiar with the environmental study which had been received from their Tallahassee office. There followed a field trip to the project area where Mr. Garcia, the project engineer,, and two members of the Orlando regional office of the Department, Mr. Hulbert and Mr. Medley, looked over the area. In April, 1974, there was another meeting with Mr. Woods at which time he indicated that the project would be approached by the Department as a potential pollution source at any points where the waters went outside the property boundaries. This was followed up by a letter from Mr. Woods received by Petitioner in June, 1974, which stated that in view of the primary interest of his office to protect and preserve water quality as to the project, it was recommended that strong consideration be given to modifying the drainage plan to allow for reduction in the following areas: Draining of swamps, marshes, and wet lands which is in general detrimental to water quality by the removal of natural filtration and assimilative systems from the service of treatment of stormwater runoff. Introduction of canals and artificial waterways degrade water quality by virtue of their stagnating effect and general magnification of adverse effects in (1) above by lowering the ground water table. Transporting of water across natural barriers and separate watersheds is generally detrimental to water quality by virtue of a net change of flow patterns and characteristics by reducing or increasing the normal waterbudget in the area. Mr. Woods also pointed out in his letter that, although it was recognized the gridiron pattern of the project made maximum utilization of the available land his office felt that a significant reduction in adverse effects as indicated could be achieved by utilizing the natural systems as much as possible, and that this would require maximum utilization of the existing wetlands, provisions for on-site retention if and where practical, and selective planting to provide for natural filtration and nutrient assimilation. He further indicated that it would be necessary to obtain a water quality certification from his Department, that Petitioner must show the facilities would be properly constructed and operated, and would be required to produce evidence that either the county or the drainage district was in a position to assume responsibility as the permittee (testimony of Trella, Garcia; Exhibit 10). After receipt of the letter from Mr. Woods, Petitioner engaged the firm of Frederic R. Harris, Inc., consulting engineers, of Ft. Lauderdale, Florida, to prepare a definite project report on drainage that would provide modifications of the drainage plan in order to comply with the objections posed in the Woods letter. This report as prepared by John W. Blue, professional engineer and, although dated September 1974, was available in final form in August at which time a meeting was held between Petitioner's representatives and the successor regional engineer in Orlando, Mr. Thomas Hunnicutt. The meeting was held on August 6, and in attendance were Mr. Gene Medley and Mr. James Hulbert of the regional staff. At this meeting, Mr. Hunnicutt was acquainted with the project and the letter from Mr. Woods, and given the "Harris" report for consideration. This report reflected Petitioner's attempts to satisfy the objections of the department by incorporating the following features in the plan: Specifications to prevent the conveyance of oils, chemicals, silt or other pollutants into the drainage waters during project construction. Planting grass on the erodible earth surfaces exposed during construction. Preservation of about 200 acres of natural hammock ponding sites. Designation of about 75 acres of natural overflow retention areas for filtration of roadside ditch runoff. Construction of about 70 acres of artificial overflow retention areas for filtration of lateral and runoff. Provision for about 209 acres of natural water spreading areas at canal and outfall terminals. Avoidance of direct connections between drainage canals and watercourses or estuaries. Utilization of about 127 acres of dug ponds and existing borrow pits for regulation of runoff peaks. Overexcavation of canals and laterals to make permanent ponds. Whereas the report of the Brevard Engineering Company had been based on a 50 year flood condition, the Harris Report was based primarily upon 10 and 25 year flood conditions. There was a misunderstanding as to Mr. Hunnicutt's comments to Petitioner at this meeting. Petitioner claims Hunnicutt had then stated that the project was in good order and that they should proceed to file their application for a permit. On the other hand, Hunnicutt testified that his remarks were predicated on the fact that since Petitioner had indicated it had made all of the modifications in the project that could he done (by virtue -of the grid system that could not be modified) , he therefore felt there was no point in further discussion. He also was of the opinion that there was sufficient information available at that time to permit consideration of an application by the Department. The Petitioner was provided blank copies of a form entitled Application To Construct/Operate Pollution Sources" (Exhibit 5), and, although Mr. Hunnicutt then acknowledged that this form did not apply too well to the endeavor under consideration he told Petitioner that they should go ahead and file the forms, at Tallahassee, attaching all supporting evidence. The application was filed in the joint names of Volusia County and Atlantic International Investment Corporation and signed by the president of the corporation. It was dated September 9, 1974, and submitted and delivered to the Respondent in Tallahassee on September 10, 1974, with a copy being given to the Orlando regional office. Other than receiving a letter dated October 25, 1974, from the Department of Natural Resources indicating that a water quality certification would not be required for the project, Petitioner heard nothing further from the Respondent until it received a letter from Mr. Hunnicutt denying the permit, dated November 6; 1974. This letter said that the regional staff had reviewed the application and based thereon, plus reviews and comments from Brevard and Volusia County Environmental Control, the permit was recommended to be denied because the applicant had not given the Department "reasonable assurance that the results of this project will be in accord with applicable laws, rules and regulations" and that the project "will have significant adverse effects on water quality as well as the aquatic resources in the area. It further stated that pursuant to Chapter 403.087, Florida Statutes, and Chapter 17- 4.07, Florida Administrative Code, the permit was denied and that Petitioner had a right to request a hearing as provided under Chapter 17-4.15, Florida Administrative Code. Petitioner filed its petition for review of the denial of the permit under the aforesaid Chapter 17-4.15, Florida Administrative Code on November 15, 1974 (Exhibits 4, 5, 6, 10, 11, 16; testimony of Mr. Garcia, Mr. Hunnicutt). In processing the application, Mr. Hunnicutt assigned it to Mr. Medley of his office for review. Medley proceeded to contact local agencies including the Volusia County and Brevard County Environmental Sections; Volusia County Public Works Department, St. Johns Water Management District, the Volusia County Environmental Task Force, and the Florida Audubon Society. He testified that all were opposed to the project for various reasons. Aside from the materials attached as exhibits to the application by Petitioner, which consisted of the Brevard Engineering Report, the Harris Report and plans and specifications and chemical test results taken by Department representatives from sample waters ,of the main canal the additional written materials before the Department prior to the, denial of the permit consisted of a letter from Mr. Kinloch, Pollution Control Coordinator of Brevard County, dated October 31, 1974; a letter from the Volusia County Environmental Task Force (a private group of about 25 professional persons who are concerned environmentalists) dated November 4, 1974; and a statement from Cherie Down a biologist with the Brevard County Health Department, dated September 6, 1973 (Exhibits 17,19 and 24). A letter from Gregory Camp, Environmental Control Officer of Volusia County, dated November 5, 1974, was not received in Respondent's Orlando Office until November 7, and therefore was rejected as an exhibit (Exhibit 18 for identification). In addition, Mr. Camp's conclusions were said by the Assistant County Attorney for Volusia County as not being authorized by the County Commission (testimony of Mr. Stuart). About a week before issuance of the denial letter, a meeting had been held at the Orlando Regional Office attended by its chief, Mr. Senkevich, Mr. Hunnicutt, Mr. Hulbert and Mr. Medley. The purpose of the meeting was to arrive at a decision concerning Petitioner's application. The procedure at the region was for the staff to decide the issue involved and then to assign an engineer in charge -- in this case, Mr. Hunnicutt -- to sign the decision letter to the applicant. No minutes of this meeting were made and the decision was a collective one by Mr. Hunnicutt, Mr. Hulbert, and Mr. Medley. They expressed their common opinion at the meeting that the permit application should be denied primarily because of considerations of water quality. Mr. Senkevich testified that he had the authority to overturn, the recommendation of the staff, but since his staff had unanimously concurred in the denial, he felt that their decision was correct. He is a civil engineer and primarily an administrator, but is not familiar with chemistry, biology, or hydrology. At the time, he erroneously believed that hydrological tests had been made by his staff as to the project and was of the incorrect, view that waters of one classification must flow into receiving waters of the same classification. He conceded at the hearing that he had only briefly studied the plan prior to the meeting and indicated that he had been concerned that the project area eventually would be developed with homes that would require septic tanks and cause a considerable problem with the degradation of water in the canals. He therefore was concerned that the canals would not maintain the requirements for Class III waters. He was unfamiliar with the aspect of danger to aquatic resources other than he felt that the main concern had been regarding trees in the area. He recognized that permits could be issued with specified conditions reasonably necessary for the prevention of pollution and that this could have been done, with respect to Petitioner's project. However, he felt that if this were done, it would usually be hard to enforce and so it was easier to insure that the project conformed to requirements at the time of construction rather than attaching conditions to the permit. He believed that if some of the project area which had not been sold could have been utilized for retention of some of the storm water runoff to provide for percolation or water storage, and if certain low areas could have been utilized for something other than lots, this possibly would have cured the objections of the staff. He did not feel that the changes which had been made by the Harris Report were sufficient to overcome the staff's objections to the project. He acknowledged that water tests in the main canal made by the Department since it had been built and prior to November, 1974, had shown an improvement in the canal water quality. He also acknowledged that none of the five criteria for control of storm water runoff set forth by the Department of Pollution Control in an April 1974 memorandum to regional offices (Exhibit 13) were violated by the proposed project (testimony of Hunnicutt, Senkevich). Mr. Medley, a biologist of the department and the project officer for review of Petitioner's application testified that he was mainly concerned because the project was designed in such a way as to eliminate wetland areas that treat and filter stormwater runoff prior to entry into the Hammock area and provide a place for wildlife to propagate. He felt that water and wildlife quality would diminish by reason of the accelerated flow of water caused by the canal system. This would take place by creating an unstable habitat in which there would be less of a variety of organisms by virtue of polluted waters entering the area. Such a condition would reduce the diversity and quality of species of organisms. He also felt that if water was diverted from one basin to another, it would have an adverse effect on biota because of the change in flow. He further believed that the failure of the applicant to address the question of future development of the project area was significant because once development occurs, canals get storm runoff from surrounding areas, become stagnant and high in nutrients. The state is then obliged to insure water quality and has been unable to do so in other projects of a like nature. He also was concerned because the reports attached to the application contained inaccuracies and it was difficult to determine what was reliable and what was unreliable information. His testimony showed that he, too, was under the erroneous impression that a member of the Department had assessed the hydrological aspects of the project when the Department was processing the application, and acknowledged that it would be difficult to determine if water would be degraded until the actual construction had been completed. However, he expressed his opinion that there is presently insufficient technology to create any canal system that would provide water quality to meet state regulations and it was his belief that wetlands should stay as they are in the interest of water quality. At the hearing, he was unable to describe the proposed canal systems for the project or the proposed vegetative filter area at the end of the canal (testimony of Medley) Mr. Hulbert, another Department bilogist, testified it was unrealistic to think that the project would not eventually be developed with hones. His concerns basically were similar to those of Medley concerning canal water quality in the future and as to inconsistencies in reports submitted by the applicant. He felt that the basic problem was the project grid design with canals following such design rather than natural drainage contours, but that modifications could have been made in the design to satisfy the Department's objections if additional buffer zones had been created along and adjacent to the proposed canals. However, he would not have recommended a permit under any circumstances because of the objections of Brevard County and Volusia County. It was his position that in such a situation the Department should deny the permit and then let the matter be determined by a Hearing Officer. He conceded that he had not examined data submitted by either county and that there was, in fact, no data submitted from Volusia County (testimony of Hulbert). Mr. Hunnicutt, the regional engineer, who is an environmental engineer, testified it was the concensus of all at the meeting that everything they had seen pointed to the fact that project drainage couldn't provide water quality sufficient to meet state requirements. His most objectionable aspect of the project was the drainage pattern and the fact that the canals had to be rather deep and did not follow natural contours, because deep canals below the water table would have standing water and no vegetation as would a more shallow drainage system. He felt that the areas of vegetative growth added by the Petitioner in the Harris Report were not large enough and would not be too effective in removing pollutants by the fast flow rate. He also was concerned about inconsistencies in the applicant's exhibits and saw no point in obtaining more test results on peripheral issues because the Petitioner was "locked in" to a deep canal concept. He, too, was under the mistaken notion that the project had been considered by a hydrologist of the department. Although he felt there were changes that could have been made which would warrant issuance of the permit, there was no point in telling the Petitioner about these because its representatives had said they couldn't make any more changes due to the existing grid system. He also agreed with Hulbert that if local agencies objected as they had in this case, the Department would deny the application but that when such objections were received, they were generally in accord with the existing view of the departmental staff. He testified that the question of the impact of the project on shellfish harvesting in the Indian River was not a serious consideration in his mind insofar as denial of the permit was concerned. He acknowledged that a permit could be issued with conditions, but the problem then became whether the applicant could maintain control effectively to enforce the conditions (testimony of Mr. Hunnicutt). A number of expert witnesses of various disciplines were called by the parties to, testify concerning the various ramifications of the proposed construction by the Petitioner. The following findings of fact are made with respect to specific material aspects of the case: The construction of homes on the tracts at Cape Atlantic Estates in any appreciable volume or any extensive use of the land in the next ten years is highly unlikely. This is due to time required for construction of the drainage facilities, and to the fact that most of the land contracts will not be paid out until the 1980's since owners of the tracts will not secure possession of their land until they have completed payment therefor. The land is not suitable for the installation of septic tanks because of the shallow soil and building permits will not be issued because of the dead-end roads in the project and the absence of paved roads ajoining the property (Exhibit 2, testimony of Trella, Maisel, Blue and Ford). It is impossible to state precisely what the impact of construction of the canal system, roads, ditches, retention ponds and control devices envisioned in the drainage plan will have on the water quality of the canals, Turnbull Hammock, Turnbull Creek, and the Indian River. Drainage of the land area by the construction will produce changes in the environment, but also will make the land accessible to owners, and to some extent may benefit the owners of nearby parcels by draining surface waters and lessening salt water intrusion. One owner of adjoining land objects to any changes in its present natural state (testimony of Blue, Hudson, Stock, Medley, Hunt, Kuperberg, White, De Wees, Fogel & Davenport) Draining and developing the project area will change the surface water flow characteristics by reducing the amount of time water is concentrated or retained in the natural area. This will undoubtedly increase the peak flows and volume of water generated from the area as compared with natural discharge. However, this increase will not exceed the capability of Turnbull Hammock to accept these flows, and increased quantities of waters in the Hammock probably would be beneficial by improving its soil conditions. The increase in peak flows and runoff volumes attributable to the project will not exceed 16 percent of the present ten year storm runoff into the Indian River. In terms of groundwater, recharge in the Cape Atlantic Area occurs only on the Atlantic Coastal ridge. A lowered water table, the result of improving drainage, will decrease the fresh water lead thereby reducing recharge. However, the water table will be lowered only one or two feet and if it is maintained with control structures at these levels as contemplated, improving drainage will not have a serious effect on the quality or quantity of the non-artesian water in the shallow aquifer in the area. The water from approximately 80 percent of the land area will flow into Turnbull Hammock and, in the southwest section of the project area, the water will be held in retention ponds and eventually released in a natural flow. Some water will go to the west toward the St. Johns River basin but it is impossible to tell how much flow this will be. The project will have no significant effect on Lake Harney and it is too far removed from the St. Johns River to have any great impact on its conditions. The drainage of the middle area of the project is ill-defined and water can flow either east or west, depending on how much rain has fallen. In the flat area to the north, water can run in both directions. Passage of water through the designed holding areas vegetation, and then reoxogenation in the canals and spreading systems to Turnbull Hammock will improve surface water quality at the site by creating motion. The roadside swales which bring water to the middle lateral canals will lower the ground water table several feet and this may well improve the water system because presently it is ponded and evaporates or filtrates into the atmosphere. Evidence of some salt water intrusion at the lower end of the Hammock area is evidenced by decayed cypress trees which are not salt water tolerant. Additional fresh water in the Hammock would improve this condition (testimony of McElroy, Blue, Clark, Hudson, McClouth; Exhibit 22). Although the waters in the main canal may not always have met all of the regulatory criteria for Class III waters under Department regulations, its quality has improved over the past several years, particularly with respect to the presence of dissolved oxygen. This is in keeping with the opinion of the experts who agreed that construction produces a temporary. adverse effect on water quality, but the waters soon stabilize and vegetation thereafter appears. When the canal system is completed and connected, a natural flow of water will occur to wash out minerals and other harmful substances, and increase the amounts of dissolved oxygen in the water. It is therefore considered unrealistic to use the test reports obtained from water samples in the present dead-end main canal because they cannot be considered representative of the quality of the water that will be present when the drainage system is in operation. Although it cannot be determined what the exact quality of the canal waters will be when in full operation, there are certain projected consequences which reasonably may be considered likely to occur. After construction of the drainage facilities, the flow of water Bill accelerate and this, in turn, can diminish the quality of animal and plant life to some degree in the Hammock area by reducing the diversity of species. The Hammock is normally anaerobic and nutrients are assimilated there to produce trees, low-lying vegetation, and animal life. Although an increased flow of fresh water will be beneficial to dominant trees, low-lying vegetation might suffer somewhat with a consequent impact on the organisms that feed upon them. However, this is a temporary condition during heavy rain and the degree of change in organisms depends on the frequency of flow and how long the water stays in the Hammock area. Added fresh water in the Hammock will reduce salt water intrusion with consequent beneficial effects. The Hammock can receive a flow of at least two times as much water as is now present during rainfall without adverse effects on the environment as long as urban development has not occurred to produce pollutants in the form of chemicals, tars, oils, and other wastes. Although several expert witnesses foresee eutrophication of the water in the main canal during stagnant periods of the dry season and then flushing of undesirable materials and nutrients accumulated by the eutrophic process into the Hammock during the wet season, the designed holding structures with shallow margins to encourage vegetation and the increased use of natural areas at the north outfall of the project area will filter and reduce substantially the amount of any undesirable material entering the Hammock. Canal systems with standing water are sometimes prone to eventually becoming clogged with aquatic plant life, such as water hyacinths and hydrilla. This, in turn, requires periodic destruction of the plants, usually by chemicals, in order to permit waterflow to continue. Though this possibly may be expected in the main, canal at some point in the future, the planned vegetative filtering system should control excessive entry of the chemical and other pollutants into the Hammock. During the period 1970-74, there was no growth of such plants in the dead-end main canal and no indication that it had become eutrophic (testimony of Blue, Morris, Clark, Hudson, Medley, Hulbert, Down, Stock, Ross). Although the area where Turnbull Creek enters the Indian River is designated as Class II waters, oysters or other shellfish are not present to any extent in the designated area. The designated shellfish harvesting area is in the Indian River south of the Brevard County line. The Indian River is moderately high in salinity and a wedge of this water goes into Turnbull Creek and then to the Hammock. The mixing zone of water is at the entrance of Turnbull which flows into the Indian River. Beyond this mixing zone where fresh water meets salt water, if shellfish exist, the limited amount of fresh water entering the river would have no significant effect upon their growth. Oysters need between ten to 30 parts per thousand salinity in the water for best growth and if the project water flowed into the Indian River the salinity would remain the same approximately 20 to 30 parts per thousand. In fact, a decrease in salinity in the water to some extent favors growth of oysters. However, increased rainfall and runoff can increase bacterial counts in shellfish and decrease the incidence of shellfish predators (testimony of Clark, Kinloch, Down). No significant diversion of waters from the Cape Atlantic Estates areas from natural drainage basins can be established other than some diversion in the eastern portion of the project area. Other than that the flow of ground water cannot be determined with accuracy and, in any event, the project would have little effect on surrounding lakes in the St. Johns River basin. Diversion would seldom occur except when there is a major storm because unless rainfall exceeds one or two inches an hour, it normally will be absorbed by the sandy soil (testimony of Blue, McClough, Hudson).