Findings Of Fact Petitioners purchased property in New Smyrna Beach, Florida to build a home. The property, which was platted in the 1940's measures 50 feet by 200 feet. The east side of the property (50') is located on Engram Road. The northern 200 feet and western 50 feet of the property is waterfront, situated on a tidal inlet from the Indian River. The Indian River contains the last remaining Class II waters in Volusia County. Class II waters in Florida are waters in which the state allows shellfish harvesting for public consumption. As the last remaining Class II waters in the county, the area requires special protection from all possible sources of pollution and negative environmental impact, including sewage outflow. According to the Petitioner, the seller of the property indicated to Petitioners that the property had been approved for constructing a home. The seller substantiated his assertion with a letter from the Volusia County Planning and Zoning Department stating that a county variance had been granted to construct a single family dwelling on this property, subject to certain conditions. The county approval letter specified the required use of an aerobic wastewater treatment system. The Petitioners were unaware of the state regulations and standards for onsite sewage disposal systems. The Petitioners hired a builder who applied to the HRS Volusia County Public Health Department for a septic tank permit. The permit was denied because the proposed septic tank system violated 50 foot set back required of sewage treatment systems from Class II waters. The proposed drainfield was located within 28 feet of the mean high water line, and because of the configuration of the lot and its depth of only 50 feet the proposed site cannot meet the state standard. The Petitioners' builder subsequently applied to the state Department of Health and Rehabilitative Services for a variance from the code standards in order to obtain the septic tank construction permit. The state denied the variance stating that the "request was not considered to be a minor deviation from the minimum requirements". The Petitioners received no notification of the time and place of the Variance Review Board's meeting because the variance application was submitted by their builder. Petitioners had no opportunity to personally address the Variance Board when their application was being considered. A sewer line is located within 1000 feet of the property and a sewage grinding and pumping system could be installed to pump sewage from the site to the sewer line. Such a system, costs approximately the same amount as an onsite system. A grinding and pumping system is an economically reasonable alternative to permit development of the lot.
Recommendation Having considered the foregoing Findings of Fact, Conclusions of Law, the evidence of record, the candor and demeanor of the witness, the arguments of the parties, it is therefore RECOMMENDED: That the request for a variance be DENIED. DONE and ENTERED this 2nd day of April, 1991, in Tallahassee, Florida. STEPHEN F. DEAN Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, FL 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 2nd day of April, 1991. COPIES FURNISHED: Sam Power, Agency Clerk Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, FL 32399-0700 Linda Harris, General Counsel Department of Health and Rehabilitative Services 132 Winewood Boulevard Tallahassee, FL 32399-0700 Jerome and Bernice Massel 6426 Engram Road New Smyrna Beach, FL 32169 Charlene J. Petersen, Esquire HRS-District 4 P.O. Box 2417 Jacksonville, FL 32231-0083
Findings Of Fact On a site that would abut St. Johns County on two sides, the City proposes to develop as a landfill about 400 of the 880 acres it owns in the southeast corner of Duval County. The proposed southeast landfill is designed to serve the approximately 300,000 people living in Duval County south and east of the St. Johns River, by receiving 1,700 tons of solid waste a day for ten years, 400 or 500 tons a day more than people in that part of the city now generate. Sandhill and Swamp Scattered over the portion of the property proposed for solid waste deposition are cypress marshes and blackgum sloughs isolated from a swamp and from each other by upland pine plantation and sandhills. Except for some 40 acres cut off from the remainder by a fill road, the hardwood swamp covering approximately 265 acres of the City's property is part of the pristine "Durbin Swamp system which is a major wildlife area, including habitat for threatened and endangered species." T. 2820. Durbin Swamp south of J. Turner Butler Boulevard and east of U.S. Highway 1 is "the most valuable wildlife habitat in the area, maybe in the southeastern United States." T.2921, 3058. The City's consultants characterized 64 of the 123 gopher tortoise burrows they found on some 105 acres in the southern part of the site as active. Sherman's fox squirrels feed and nest on the property. Although "very little of the sand hill habitat [remains] in its natural condition on the property," (T. 185) turkey oak, long leaf pine and sand pine communities do survive. Isolated wetlands scattered through the eastern portion of the site have also been timbered, and ditches intersect many of them. St. Regis Paper Company, who owned the land until earlier this decade, "dug a series of canals . . . to drain . . . part of the land ["it was called upper wetlands"] . . . so that the ground could be high enough to raise good grade pine trees." T. 1417. "The isolated wetlands . . . provide habitat diversity for wildlife, a seasonal source of drinking water, possible refuge during forest fires, as well as breeding and forage locations," (T. 1255) according to the City's draft application. "Wildlife noted on the site includes Florida black bear, white-tailed deer, raccoon, armadillo, cottonmouth, river otter, common night-hawk, alligator, yellow bellied sapsucker, turkey, frog, quail, dove and red- shouldered hawk," (T. 1255) also according to the City's draft application. Bobcats are common. According to the St. Johns River Water Management District's chief environmental specialist, "animals that you would find utilizing the uplands . . . would be a range of small rodents [including] mice, rabbits . . . insects, [mostly tree] frogs, toads, snakes [including] black snakes, rat snakes . . . [o]possums . . . pastorine birds, cardinals, bluejays, blackbirds . . . [and] probably some hogs." T.537-8. Wood storks wade and feed in the isolated wetlands on site. Wood stork rookeries have been found five miles to the southeast and seven miles north of the City's property. Bald eagles nest nearby but off site. Eagles used the now abandoned eagle nest on Eagle Nest Island "three-quarters of a mile from this proposed landfill site," (T. 1419) at least as recently as 1983. One or more eagles still perch on a dead cypress limb on the property (T. 2422), if not elsewhere on site. Ospreys, southeastern American kestrels (T.2918) and six or seven species of woodpeckers, including the rare hairy woodpecker (T2914) have also been seen on site. "There are dirt logging roads just as there are in any property in Florida, but not a great number." T. 2751. "Almost all of the pine flatwoods habitat on the site has been replaced with planted pine." T. 184. The property is comparable to the Wacasassa tract in Gilchrist County which is on the Conservation and Recreational Lands list and under consideration for state acquisition because of its "comparatively unaltered nature." T. 2721. In the past, conservation efforts have brought animals to the property for refuge. T. 1420. Listed Species The Florida Game and Freshwater Fish Commission (Game and Fish) lists the gopher tortoise and the Shermans's fox squirrel, said by one witness to be "imminently threatened," (T. 2899) as species of special concern. T. 2875. A species of special concern "is beginning to show a decline and needs to be . . . considered as a target of conservation and if present conditions continue it's going to be listed as threatened." T.2874. Game and Fish lists the Florida black bear, the southeastern American kestrel and the bald eagle as threatened, the same category in which the United States Fish and Wildlife Service (Fish and Wildlife) lists the American alligator. A threatened species is one destined to become endangered "if present trends continue." T.2874. Both Game and Fish and Fish and Wildlife list the wood stork as endangered, and Fish and wildlife lists the bald eagle as endangered. "An endangered animal is one that under present conditions is in danger of becoming extinct in the near future." T.2874. Listed in the Convention on International Trade of Endangered Species are the bobcat and the river otter. By definition, rare animals are not often seen in the wild. The parties stipulated that the staff of CZR, Inc., a consultant engaged by the City, spent an aggregate of 1400 man-hours on the landfill site, of which 429 man-hours were spent on site for the purpose of performing a wildlife survey. T. 2803. Despite their effort and putative expertise, the City's consultants did not see even a single listed animal. This failure contrasts with sightings by hunters and other experts who spent less time on site, and may be attributable to the time of year (two weeks in the fall) the survey was performed (T. 2425-27, 2893, 2899) or to the way in which it was done, (T. 2429, 3067, 3068) which a wildlife ecologist testified rendered it of "trivial value." T. 3079. The study was expedited in anticipation of a hearing date. T. 2426-27. In any case, the survey does not give reasonable assurance that species whose range includes the City's property are not present in suitable habitat on site. T. 2896-97, 3079-80. This is, indeed, the conclusion the City's own experts reached as regards the gopher tortoise itself, because of the clear sign these creatures' burrows give of their use of the property. Similarly, with respect to the Sherman's fox squirrel, although only a single individual was spotted, distinctive nests and piles of pine bracts on site established their presence. Bear tracks corroborate infrequent sightings on the property, as well as south and east of the site. On a large tract of land to the north, bears are fed daily; three or four feed each day. T. 2421. Alligator sign bore witness to the alligator's use of the property, although the only sighting clearly proven at hearing occurred just across the boundary line. Of course, wildlife does not respect legal boundaries. There is no reason not to believe that the red-cockaded woodpeckers, with six active nests within three miles or the Bachman's sparrows heard singing nearby do not frequent the City's property, which offers suitable habitat for both. It is even possible that the Florida panther, common in the area as recently as 30 years ago, may have roamed the site in more recent years in pursuit of deer or feral hogs. Two witnesses swore they had seen Florida panthers within two miles of the site, one only a few months before the hearing, (T. 1362, 1371, 1419), and a third testified he thought a "cat" he had seen two and a half or three years before the hearing just north of the site was a Florida panther. T.2429-32. The Florida Everglades mink, a threatened species according to Game and Fish, has been spotted at least twice in a cypress bog across the street from the City's property, and probably occurs on the property, as well. Not spotted either on the City's property or on adjacent land, the Florida mouse, the eastern indigo snake and the gopher frog are known to make their homes in gopher tortoise burrows. Of these listed commensal species, the indigo snake is particularly likely to inhabit the site. "The blue indigo snake was turned loose on that property in . . . '81 or '82, since it was an endangered species." T. 1420. The site also affords suitable habitat for the long tailed weasel, under review for listing. Game and Fish has listed the Florida mouse and the gopher as species of special concern. Bachman's sparrow is under review for listing. Fish and wildlife views both the red cockaded woodpecker and the Florida panther as endangered, while Game and Fish views the latter as endangered but the former as threatened only. Aquatic or Wetland Dependent An "aquatic and wetland dependent" species is a species that "requires wetlands or aquatic systems to satisfy some critical biological need in its natural life cycle," (T. 524) apart from simply drinking water. "[W]ithout wetlands or aquatic systems, these species would probably be extirpated from the state." Id. The Sherman's fox squirrel, the gopher tortoise, the Florida mouse, the Florida long-tailed weasel, the southeastern kestrel, and Bachman's sparrow are not aquatic or wetland dependent. Because they use watery environments for feeding, reproduction and other purposes, the alligator, the wood stork (the only stork in North America) and the gopher frog are aquatic and wetland dependent. Because "the whole black bear population in our state seems to shift . . . primarily in the fall and winter months, to the wetlands and . . . eat . . . fruit produced in wetland trees," (T. 527) the black bear is deemed wetland dependent. The indigo snake is also so classified because it "seemed to be heavily dependent upon eating frogs." (T. 526). Even though not wetland dependent "historically and naturally," (T. 527) the "less than probably 100 Florida panthers left in the state" are now so viewed because "they have more or less been restricted to the major swamp systems," id., without which they probably would not survive. The contiguous wetlands on site comprise the headwaters of Durbin Creek, which empties into Julington Creek shortly before Julington Creek reaches the St. Johns River. Large scale residential development of lands lying within the watershed of Durbin and Julington Creeks has been proposed. Durbin Creek and the swamp that gives rise to it serve as a "juvenile fish nursery" (T. 2468) for white shrimp, blue crabs, croaker, anchovies, bream, bass, shellfish, bluegill, and sheepshead. Lower dissolved oxygen levels or other stressors in Durbin Creek would decrease populations in fisheries already at carrying capacity, and already threatened by the prospect of overdevelopment. Dredging and Filling The City intends to build a road running east and west between the landfill site and U.S. Highway 1 following, for the most part, an existing dirt logging road, and crossing Old Kings Road, built in 1765 to connect the capital of colonial Georgia with St. Augustine. Turbidity screens and staked hay bales would be used during road construction to protect adjacent waters. After construction, seeding and mulching would stabilize the sloping shoulders of the fill road. In connection with construction of the access road, plans call for filling wetlands contiguous to Durbin Swamp, 2.8 acres within DER's jurisdiction and 3.5 acres within St. Johns River Water Management District's jurisdiction. Fetterbush, gallberry, scrub palmetto, cinnamon fern, bamboo vine and sphagnum moss grow in these contiguous wetlands, under a canopy of slash pine, loblolly bay, cypress and swamp tupelo. The proposed Class III disposal area would lie two hundred feet north of the south property boundary and 600 feet west of the east boundary. Over significant portions of this 88-acre site, fill dirt is to be used to raise the grade, because the land is so low. Enough fill is to be placed in the marshes and sloughs to avoid depositing solid waste in the water. Trucks would haul fill dirt to the eastern part of the site ("the area starting at the northeast corner of the Class III landfill and extending about 300 feet to the west, starting from a point about midway along the eastern margin of the landfill, and extending about 450 or 60 feet to the west, and along the southern portion of the Class III landfill, about . . . 600 feet" T. 1562) and elsewhere on site, smothering isolated wetlands, where more or less healthy vegetation, generally of the kind found in the contiguous wetlands, now grows. The 132-acre Class I disposal area, which would abut the Class III area on the north, would also cover isolated wetlands now on the site. Together with excavation of associated stormwater retention basins, the disposal areas would disturb a total of 46.3 acres of isolated wetlands within the St. Johns River Water Management District's jurisdiction. The St. Johns River Water Management District originally asserted jurisdiction over 48.5 acres of isolated wetlands, City's Exhibit No. 80, but the objectors offered no evidence that staff's subsequent decision that vegetation on one 2.3-acre parcel did not qualify was erroneous. This total does not include isolated wetlands less than half an acre in extent or isolated wetlands lying both within and without the disposal areas which will cease to function as such when truncated by dredging or filling. In this latter category are some ten acres that will not themselves be dredged or filled. T. 2777-8. St. Johns River Water Management District identified 5.3 acres of high quality isolated wetlands with connections off-site that are to be impacted, City's Exhibit No 80, along with another 11.2 acres of "low quality" isolated wetlands. Id. No stormwater retention basin would intrude into DER's jurisdictional wetlands, but approximately nine tenths of an acre falling within the St. Johns River Water Management District's contiguous wetlands boundary would be devoted to stormwater retention basins. Replacement Wetlands To mitigate the planned filling of contiguous wetlands for construction of the access road, the City proposes "to excavate 3.5 acres of nonjurisdictional pine plantation and create a contiguous swamp wetland." City's Exhibit No. 56. Mature dahoon holly, loblolly bay, cypress and gum trees "will be transplanted from on-site [isolated] wetlands proposed for construction impact." Id. A tree spade is to be used to transplant trees with trunks as much as 12 inches in diameter at "breast height" and up to 50 feet tall, along with existing soils, microbial communities and adjacent understory vegetation. The "physical structure of the trees themselves . . . provide a good deal of the habitat." T. 436. Removing mature trees from isolated wetlands and replanting them in created wetlands would, to some extent, mitigate the loss of perches for bald eagles and other birds. Mature trees in the created wetland would be replanted at a density "approximately half that of existing on-site wetlands to be impacted." Id. Only 80 percent of the replantings are to be replaced, if they die; and then only if it is clear within three years that replacement is needed. A six-inch layer of organic soil, to be spread after the trees have been transplanted, would "provide for growth of herbaceous vegetation." Id. The City would monitor the created wetland (part of mitigation area "A") for three years and transplant additional trees, if needed to assure survival of not less than 80 percent of the number of trees originally planted. Of these 3.5 acres, the City has identified 2.8 as specifically intended to mitigate the filling of wetlands within DER's jurisdiction. With respect at least to this portion, the created wetland "will function probably much the same as the 2.8 acres" (T. 2765) to be filled in constructing the access road and "would compensate for the" (T.2765) attendant loss of vegetation. In transplanting mature hardwoods, "[i]t's sort of a physical impossibility to get all the root material . . . [and y]ou also get some loss of branches, limbs and stems just from the physical movement of the tree." T. 2482-83. One reason a wetland "system stays wet . . . is a thick canopy." T.2486. With more sunlight streaming through a sparser canopy, the "vegetation is not going to be the same." T. 2487. "[B]ecause you don't expect the wetlands to function as well as the original wetlands you're replacing, there is a general rule of thumb that . . . you create twice as much wetlands as the wetlands you've destroyed." T. 2488. "A three-to-one ratio would not be unusual for a good mature forested hardwood system." T.467. St. Johns River Water Management District's Applicant's Handbook calls for a ratio between 2:1 and 5:1, but states: "The ratios may also be adjusted when wetlands creation is combined with wetland mitigation proposals such as an open buffer area adjacent to the wetlands, conservation easement, wetland enhancement proposals or alternative mitigation proposals." T. 504. The ratio proposed here is less than one to one. In all, mitigation area A would comprise 11.0 acres of what is now pine plantation. Aside from a .55 acre pond in the middle, mitigation area A would consist of wetlands contiguous to existing wetlands on which three different, if related, vegetative communities are to be planted. In addition, the City proposes to create three different isolated wetland areas, one of which (mitigation area D) it characterizes as "high quality." Six acres of what is now pine plantation would be excavated on the north edge of the property. Using the same, experimental techniques proposed for mitigation area A, cypress trees would be placed on 3.4 acres, and 2.6 acres would be devoted to a combination of loblolly, cypress and dahoon holly. Another 9.8 acres of isolated wetlands would be created within borrow pits, 6.8 acres in borrow area No. 1 (mitigation area B) which would include .55 acres of open water, and 3.0 acres in borrow area No. 2 (mitigation area E.) Just north and east of the truck scales, mitigation area B would receive 200 adult trees per acre planted to the extent they are available on site, or 400 trees per acre planted with nursery stock. The same density is planned for mitigation area E, to be located across the road from stormwater retention basin 4. The City also proposes to remove a segment of a logging road built on fill that now cuts off 40 acres from the remainder of Durbin Creek Swamp. Removal of the fill and revegetation would not only increase the extent of the swamp by 0.3 acres, it would restore historic sheet flow in that part of the swamp. Finally, the City proposes to spread muck, if available, over the shallow, southern part of stormwater retention basin 2 and plant 12 acres of grass ("[w]etland herbaceous species" City's Exhibit No. 80) which, however, the City reserves the right to dredge up "from time to time". Id. p.13. Other Effects, Other Mitigation Building and operating the landfill on the site proposed would displace upland wildlife and fragment largely undisturbed and undeveloped wildlife habitat. Fences along the northern, eastern and southern site boundaries would present a physical barrier. Human activity, particularly daytime traffic on the access road, would also create a "bio-geographical barrier." Developing a landfill at the edge of the swamp amounts to "leapfrogging," instead of expanding existing pockets of industrial or other development. A witness characterized the area to the south of the site as "rural developed"; some 164 people live within a mile of the center of the site. T. 78. But private ranch lands to the north, like undeveloped land to the east, afford good wildlife habitat. Habitat fragmentation divides and isolates animal populations. "Fragmented populations are more susceptible to disease, inbreeding and with time, poaching." T. 2890. The landfill would displace gopher tortoises, their commensals, if any, and other wildlife using sandhill or pine plantation habitat, as well as wildife, including wood storks and other migratory birds, making use of the isolated wetlands that are to be filled over. With the filling of isolated wetlands, migratory birds would lose holly berries and other forage. Filling or excavating acreage at the periphery of the swamp would also destroy habitat and displace wildlife. Wildlife now on site reaching suitable habitat elsewhere will have to compete for limited space against animals that have already established territories. The result should be a net decline in populations. T.2898. Increasingly sequestered, the Durbin Swamp system is already under pressure from urbanization to the north. For animals that remained in the vicinity, development of the landfill would occasion other difficulties. But evidence that landfill noises and odors "would have no discernible impacts to the value of wetlands as habitats for aquatic and wetland dependent species" (T. 528) went unrebutted. A buffer of at least 50 feet would separate contiguous wetlands from stormwater basins and other construction, but this is considerably less than the 528 feet Dr. Harris testified was necessary to avoid "greatly erod[ing] the native faunal diversity of the Durbin Swamp wildlife." T.3073-74. Placement of the landfill on this site would increase the numbers of a half dozen "middle-sized mammal omnivores" (T. 3078) so that gopher tortoises, turkey, quail, "anything that nests on the ground will be subject to the plundering by the enhanced population of raccoons, opossums, gray foxes, red foxes . . . and such." T. 3079. Increased numbers of armadillos would also pose a heightened threat to animals that nest on the ground. Landfill operations can be expected to attract seagulls and birds of other species, including nest predators and the brown-headed cowbird, which takes over other birds' nests to lay its own eggs (T. 3071-2) and would pose a particular threat to Swainson's warbler. It is not clear that any of the mitigation areas the City proposes is intended to replace wood stork feeding habitat that would be lost to dredging and filling. Wood storks feed on dense fish populations in shallow water, when receding water levels make the fish easier to catch. Isolated wetlands on site that have served this function would be lost (T. 2419), although not all of the isolated wetlands to be lost have enough water to support the kind of fish on which wood storks prey. The deep, steep-sided ponds planned for the mitigation areas do not replicate the necessary conditions. Whether birds may safely feed in or drink from untreated stormwater run-off in shallow portions of the retention basins is doubtful. When it rains, particularly the initial flush of run-off would deliver pollutants, including oil, greases and gasoline left by garbage trucks, to the retention basins. T. 1820-1. Removing the fill road and restoring normal flows to the 40-acre patch of the swamp on the other side, as the City proposes, would not add to feeding areas available to wood storks, except for the 0.3-acre roadway itself. The project would disrupt "very superior black bear habitat." T. 3059. Tending to avoid human activity, bears would likely range further east, foregoing foodgathering on site. On the other hand, food or other refuse brought to the landfill might lure bears to their deaths, intentional or accidental. "[C]ollisions with human vehicles," (T. 3062) is the chief cause of black bear mortality in Florida. Bears have been killed in this fashion within a mile of the site, (T. 351 1411-4, 2438) although not during daylight hours when the landfill would be in operation and garbage trucks would travel the access road. Creation of wetlands will not mitigate destruction of upland habitat. On the contrary, additional upland would be taken to create the wetland mitigation areas planned. But the City proposes to give a conservation easement on 129 acres of upland, adjacent to the swamp, that is to remain undeveloped. The upland easement would preclude a host of uses inimical to wildlife, and would mitigate to some extent the loss of wetland habitat for animals which use both uplands and wetlands, like the black bear, even though cut over slash pine plantation is among the very least important or productive wildlife habitats in Florida. The easement would not include sandhill habitat. The City has also undertaken to give a conservation easement covering some 260 acres of wetlands contiguous with Durbin Creek Swamp. This would not, of course, increase the extent of existing wetlands, but it would add a measure of protection for those that survived the project. Perhaps most importantly the wetland conservation easement would preclude expansion of the landfill further into the wetlands, as long as it remained in force. Existing regulatory restrictions on the use of wetlands prevent many uses, even without an easement. Apparently no regulation precludes harvesting bottomland hardwoods, however, so long as no excavation is involved, and vegetation, once severed, is not redeposited on site. But converting deforested areas to pinelands, without a permit from the Army Corps of Engineers would probably not be authorized, under 33 U.S.C. s.1344 (f)(2). See Avoyelles Sportmen's League, Inc. v. Marsh, 715 F.2d 897 (5th Cir. 1983). The City proposes to relocate gopher tortoises and any indigo snakes, gopher frogs or Florida mice that can be found to an unspecified new home off- site. Survival rates for gopher tortoises after similar relocations in the past have ranged between 30 and 100 per cent. By the year 2,000, the St. Johns County gopher tortoise population is predicted to fall by 90 percent, and Duval County is predicted to be devoid of gopher tortoises, even without relocation efforts of the kind proposed. Some or all of the gopher tortoises slated for removal may be descended from those who were brought to the site from Lake City. Perhaps even some who started out in Lake City would themselves make this second exodus to a new promised land. Stormwater Management The site proposed for the southeast landfill does not lie within a basin for which the St. Johns River Water Management District has adopted volumetric requirements. A "set of double [triple (T.1740)] box culverts five feet by eight feet . . . and . . . four other," (T. 425-6), "equalizer culverts," large enough for bears to move through (T. 415) would convey preexisting surface flows. A cross drain in the vicinity of the service plaza would serve the same function. Flood elevations would not increase more than a foot immediately upstream or more than 0.1 feet 500 feet upstream. The access road would not impound surface waters. Exfiltration trenches paralleling the access road "designed based on South Florida's criteria" (T. 1737) would filter contaminants from water running off the road. Within 72 hours of a 24-hour, 25-year return storm, the exfiltration system would be able to treat twice the volume of stormwater that recurrence of such a storm would generate. T. 1743. The scale plaza area where garbage trucks moving east on the access road would be weighed before being directed further down the road to a disposal area, is to be built on an upland portion of the property, and with it a wet detention pond to which surface water from the plaza and associated roadway would drain. Swales and berms would divert surface flow from undeveloped parts of the property that might otherwise reach the detention pond. The interceptor ditch and associated works would reduce by 2.5 hours the time of concentration for runoff from a 202-acre watershed, but cause no other changes in watershed characteristics. A weir would make it possible to regulate overflows and allow detention of run off long enough for biological assimilation of most pollutants. For the 25 year return, 24-hour storm, the pre-development peak rate of discharge (6.3 cubic feet per second) is less than the post-development peak rate without detention (18.4 cubic feet per second) but more than the post- development peak rate of discharge with detention: 3.9 cubic feet per second. An orifice below the weir, with a diameter of 1.5 inches, is designed to discharge less than half the treatment volume (22,088 cubic feet or 2.5 inches times the impervious portion of the area drained) in 64.21 hours. The design meets DER and St. Johns River Water Management District criteria. Portions of stormwater retention basins 1 and 2, situated north of the disposal areas, would lie within the 100-year flood plain. These two retention basins are designed to receive stormwater running off the Class I site or diverted around the site, as is stormwater retention basin 3, while stormwater retention basin 4 is intended to collect stormwater flowing off or around the Class III disposal area. Stormwater retention basins 3 and 4, like the southern area of stormwater retention basin 2, are not to be excavated to a depth of more than five feet below grade, to prevent groundwater from seeping into stormwater retention basins, dewatering the wetlands where it would otherwise emerge. With terraces at 20-foot intervals, to a height of 60 feet above grade for the Class I site and 40 feet above grade for the Class III site, both landfills would resemble Mayan temples, at build out. Ditches around the perimeter of each terrace are designed to convey stormwater to slope drains which would bear water to the level below, eventually to the perimeter ditch on grade, from which it would flow, through box culverts under roads built around the landfill, into the retention ponds. To the extent necessary to prevent groundwater infiltration, the ditches are to be lined. Stormwater retention basin 2 has two discharge structures, while each other basin has a single discharge structure leading to a ditch that would convey stormwater to Durbin Swamp. Perforated pipes, swathed in filter cloth, would be buried under highly permeable sand, along the sides of the retention ponds. Installed above seasonal low groundwater elevations, in order to avoid draining groundwater from the area around the ponds, during dry seasons, (T. 1781) they would have to go below seasonal high groundwater elevations, in order to be low enough to serve as drains for the retention ponds. Ambient groundwater would seep into the pipes, whenever groundwater levels outside the ponds rose above the pipes' elevation. But the pipes would still be able to drain the retention ponds, because of the relatively greater (vis-a-vis soils on site) hydraulic conductivity of the highly permeable sand to be trucked in for use as a filter medium. In time, these side drains or underdrains would clog and require expensive maintenance. But, assuming proper maintenance of the retention pond drains and of the drains that make up the roadway exfiltration system, the landfill and associated development would not flood or dewater wetlands that are not themselves to be dredged or filled. Except what is lost to evaporation, water entering the retention ponds would reach the wetlands, whether through the underdrains, over the weirs and through the conveyance ditches, or by movement underground after seeping through the bottom of the basin. The post-development peak rate of discharge from the area draining into the stormwater retention basins should not exceed pre-development rates for a 24-hour 100 year return storm or any lesser event. Because of roads and other impervious surfaces, a greater volume of surface water should reach the wetlands, causing stages about two inches higher than under pre-development conditions in "a typical summer thunderstorm." T.1782-3. The increase in surface flow corresponds to a decrease in water percolating down into the groundwater, and may result in additional loss to evaporation of water that would otherwise reach wetlands. But any such effect will be slight; surface and groundwater levels and surface water flows will not be adversely affected. T. 1783. Nor will existing surface water storage capabilities be adversely affected, despite the placement of portions of retention basins 1 and 2 within the 100-year flood plain. This encroachment at the very edge of the flood plain would rarely have any effect on surface water flows. Almost all development is to occur outside the ten-year flood plain. The stormwater basins could hold an inch of runoff without discharging water over the weirs. The underdrains, which would, when originally installed, have a hydraulic conductivity of about 130 feet per day, could remove an inch of run-off within approximately 40 hours. On the conservative assumptions that half of a two-foot vadose zone would already be saturated at the time a 24-hour, 25-year return storm dropped an additional 8.9 inches of rain on site, and that soils on site have a porosity of .5, the retention ponds could contain the resultant run-off for treatment, before discharging it first through weirs then through the underdrains. Three surface water monitoring stations are planned. One upstream would make it possible to assess background conditions. Another at the point of discharge from stormwater retention pond 2 would reveal whether the retention ponds and their sidedrains were functioning as intended. A third monitoring station in the southwest corner of the site should give similar information as to the roadside exfiltration system. Hydrogeology Except in the southeastern corner of the City's property, where the ground slopes down to the east, the land the City owns, like the adjacent land to the south owned by the McCormicks, slopes down in a more or less northwesterly direction, falling from 55 feet NGVD on the southern boundary to 15 feet NGVD at the northwest boundary, which intersects an elbow of the swamp. Although groundwater flows east of north under the southeast corner of the property, the flow under the property is generally northwesterly, following the topography. Class II groundwater in the surficial aquifer underlies the property at depths ranging "from almost to land surface to five or 10 feet below." (T. 1517). City's Exhibit No. 161. Groundwater flowing northwesterly crops out in isolated wetlands, evaporates, transpires or discharges into the swamp. To assure that the bottom of each exceeds seasonal high groundwater levels, measured in February of 1987, by the number of inches a 24-hour 25-year return storm would add, fill would be placed under both disposal areas, as needed. Because the Class I solid waste disposal site is to be lined, recharge by rainfall would be precluded there. With a liner intercepting percolating rainwater, groundwater would not attain predevelopment levels. The depression thus induced under the Class I site would more than offset the tendency groundwater under the Class III site would otherwise have to mound up into the bottom layers of solid waste deposited there. Recharge from rainfall (become leachate) would continue at the unlined Class III site; the height of accumulated waste would slow or stop evapotranspiration offsetting percolation there. But groundwater would flow down steeper gradients to lower levels underneath the Class I site (which lies between the Class III site and the wetlands where groundwater discharges) rather than rising into waste disposed of on the Class III site. The horizontal component of flow would continue to exceed the vertical component by several orders of magnitude. Beneath the surficial aquifer, which extends to depths of 50 to 100 feet below ground and consists of sand interspersed with a "matrix of soil, organic materials, clays and silts . . . little layers of clay and hardpan" (T. 1517) lies a continuous, confining layer of gray, sandy material with gravel and shell fragments, 12 to 40 feet thick, blanketing the undulating surface of the Hawthorne formation underneath. "[S]ome 40 percent of the material comprising the Hawthorne formation in this area is clay and the remainder is a mix of sands, silt stone, shell beds and phosphatic sands." (T. 1526) This assures that rainfall or other fluids percolating into the surficial aquifer on site will move horizontally downgradiant, reentering the atmosphere or discharging to the surface, rather than penetrating the thinner aquitard above the Hawthorne formation and sinking another 250 feet or more through the Hawthorne formation itself into the Ocala group and Floridan aquifer below. No subterranean feature in the vicinity permits water in the surficial aquifer to reach the Floridan. No peat, muck or other unstable soils underlie the site. Under 3,000 pounds per square inch, the maximum load anticipated, the ground is not expected to settle more than one inch. The addition of fill dirt does not alter this estimate significantly. Disposal Design The Class III disposal area would not have a liner, a leachate collection system or gas controls. After travelling through soils under the site, leachate from the Class III site would enter the groundwater. The City proposes to train and direct staff, to the end that only yard trash and construction and demolition debris end up in the Class III disposal area, where waste would be deposited directly on fill dirt or naturally occurring soils. No solid waste is to be disposed of within 200 feet of wetlands contiguous to Durbin Swamp lying within DER's jurisdiction. A composite liner of the kind in place at Alachua County's southeast landfill would form the corrugated bottom of the Class I landfill: a 60 mil high density polyethelene layer overlying two six-inch lifts of calcium montmorillonite, a clayey sand that is to be placed on compacted subgrade configured in "a herringbone design with peaks and valleys." T.765 Separating trenches in the valleys, sloping ground would rise, then fall at least two feet for every hundred horizontal feet. Steps would be taken to remove rocks, twigs, roots and the like, before compacting subsoils on site. A machine called a sheepsfoot is to be deployed, once half the montmorillonite has been put down, to pulverize clods and mix the material, in an attempt to assure uniformity within each lift of clayey sand. Other machines would compact each lift to a specified Proctor density. These efforts would not succeed in eliminating all clods or other imperfections, and the sheepsfoot would mix subgrade with the bottom layer of montmorillonite, introducing new impurities. Soils on site have hydraulic conductivity ranging from 1 x 10-3 to 1 x 10-4 centimeters per second. Clayey sand is also subject to desiccation cracking; as it dries out, large cracks appear. On top of this kneaded, compacted and finished 12-inch layer of clayey sand, once it had been inspected to assure the absence of roots, rocks, sticks, glass or other sharp objects, a specialty contractor would unroll strips of unreinforced high density polyethylene. After arranging the panels to minimize seams in the leachate collection trenches, technicians would weld the polyethylene strips to one another. An independent, third-party quality assurance contractor would inspect and test the seams before the synthetic liner was finally positioned, and as flush a fit as possible was achieved. Both the high density polyethylene and the quality assurance program are to meet the requirements of NSF Standard 54 and EPA Publication SW-870, March, 1983. Some wrinkling and occasional flaws in the plastic liner are inevitable. Wrinkling causes ponding, not only of rainwater during construction, but also of leachate, once the landfill is in operation. Tire tracks or other indentations in the montmorillonite layer can also cause ponding. In time, under the growing weight of solid waste, and with heat that biodegradation of the waste would generate, some of the wrinkles might subside, but the liner might also sink into additional depressions. Careful construction could keep ponding to a depth of little more than an inch. T. 2971, 2979. Extrusion welds (when done properly) render the seams stronger than the panels they join. But even if "you are really, really good" (T. 2957) and even when you're careful you get an occasional problem, one or two per acre, no matter how careful you are. And if you're not as careful, you get more, typically something on the order of five holes per acre. T. 2967 Carelessness on one project resulted in as many as 60 flaws per acre. Nondestructive testing methods do not detect all defective welds. T. 2966. Defects may develop after the plastic liner has been inspected. Stress on high density polyethylene associated with "conform[ing] itself to whatever is underneath it" (T. 2962) concentrates in scratches, gouges and crimps to cause "as much as 30 percent" (T. 2964) of the holes in the material. "[T]here is no shortage of scratches on a construction site." T. 2962. Leachate Collection Another high density polyethylene geotextile, chosen for its transmissivity (the geonet), is to be placed on top of the high density polyethylene liner (the geomembrane), where it would act as a synthetic drainage medium. In order to prevent overlying sand's clogging the geonet, compromising its ability to conduct leachate down into the trenches, a third, highly permeable geotextile, "a non-woven needle punched type" (T. 637) (the geofilter) would go directly on top of the geonet. The twelve-inch sand drainage layer blanketing the geofilter would have hydraulic conductivity of 1 x 10-3 centimeters per second, if sufficient quantities of suitable sand could be obtained. (T. 764) Another 12 inches of native soil is to cover the sand drainage layer. While the geofilter and the soil layers above it would parallel the landfill liner on the slopes between trenches, they would form arches over the trenches themselves. Continuing to follow the contours of the montmorillonite, the geomembrane and the geonet would line the trench bottoms. Below these arches, inert drain field rock would fill the lined trenches, supporting one perforated PVC pipe eight inches in diameter in each trench. The Class I landfill is to be built in fourteen 250-foot wide cells, with each cell having two leachate collection pipes on 125-foot centers. Manholes at either end of each leachate collection pipe would allow access, in case unclogging the pipe proved necessary. Longitudinally, the trenches would slope to the north, falling two to 20 feet for every 1,000 horizontal feet. Leachate reaching the trenches would flow along the trench bottoms (or through the pipes) to the manholes on the northern boundary. Also to be made of leachate-impervious PVC, leachate drain pipes, which would not be perforated, would connect all manholes on the northern perimeter. Varying in diameter from eight to twenty inches, depending on the number of manholes they were designed to empty, they would converge at a leachate pumping station north of the perimeter road. T. 590-1. A rupture in one of the single-walled leachate drain pipes could spill massive quantities of leachate on naturally occurring soils. Leachate which reaches the station is to be pumped into a 12,000 gallon storage tank nearby. To be mounted on a concrete slab surrounded by a curb high enough to contain all 12,000 gallons, if the tank failed, the tank would be constructed of high density polyethylene. The plan is to pump leachate from the tank through a four-inch discharge pipe into tanker trucks which would take the leachate to the Buckman wastewater treatment plan for disposal there. During "the maximum leachate production period, when you have 10 cells open," (T.687) an average of 35,000 gallons of leachate a day would require removal for disposal in this fashion. Additional tanks could be built. As a precaution, isolation valves would permit cutting off all flow of leachate to the pump station. In addition, isolation valves would allow cutting off the flow from any of seven pairs of cells (or slowing the flow from all, T. 705) in the event of an abnormal circumstance where leachate production in the facility exceeds the hydraulic capacity of [the] leachate removal system, the pumping station and storage tank and the tanker truck system. T. 591. Isolation berms separate each pair of cells susceptible to being put to use as temporary storage for leachate. The leachate drain pipes themselves afford more than 23,000 gallons of emergency storage. T.703. Ventilation As they decompose, materials to be deposited in the Class I landfill produce methane gas, carbon dioxide, and other, malodorous gases. Collection pipes with eight-inch diameters, running horizontally on 150-foot centers in the second and fifth lifts would allow gas to escape at either end, on the north and south sides of the landfill. This would prevent methane's building up and exploding or catching fire. By assuring their gradual release, it should also minimize the impact of foul smelling gases, which, in any event, are generally undetectable at a distance of more than 1,000 feet. But specific condition eight of the proposed landfill permit requires that the passive system be converted to an active system, if necessary, using vacuum suction and flaring. GIGO Although there "is not much industry in the southeast portion of Duval County," (T. 953) sewage sludges and other industrial wastes "except any hazardous waste as defined in the Federal Register" (T. 947) would be accepted for disposal at the Class I facility, if properly manifested. The proposed southeast landfill would receive waste that would otherwise have gone to the unlined east landfill. Household waste contains toxic materials. Tests of leachate generated in other lined landfills from which hazardous wastes are excluded have demonstrated the presence of some 30 metals and 56 organic compounds. City's Exhibit No. 89. Rainfall percolating through (and moisture already present in) waste deposited at the proposed Class I facility can be expected to leach the same array of substances from materials deposited there. Judging from experience elsewhere, leachate from the Class I facility would contain 13 or 14 (if 4-methyl phenol is included) substances in concentrations in excess of governmental standards or health-based criteria identified by a toxicologist engaged by the City. City's Exhibit No. 90. Among these would be methylene chloride, trichloroethylene, tetrachloroethylene and benzene, (T. 1478) as to which "the current regulatory policy is that it is possible for as little as one molecule . . . to act as . . . a carcinogenic initiator . . . [so] that there is no real threshold." T. 1447. Maximum concentrations would exceed those Florida prescribes as primary drinking water standards for titanium threefold, for benzene fivefold, for chromium more than fivefold, for sodium approximately 16-fold, for manganese 68- fold, for iron 280-fold, and for methyl ethyl ketone almost 130-fold. City's Exhibit No. 90. Methylene chloride would occur in the leachate in concentrations 39 times greater than the "USEPA proposed Preliminary Protective Concentration Limits." Id. Only yard trash "soils/land clearing waste, waste from landscapers" (T.956) and construction and demolition debris, "clean debris, inert materials, construction and demolition wastes that are inert, roofing materials," id., and the like, not mixed either with industrial or with regular household garbage, would be accepted for disposal in the Class III facility. Unless these materials are adulterated, they are "easy to bio-degrade . . . [or] are insoluble," (T. 1923) and rainwater percolating through them should yield a leachate with "neutral pH . . . low to moderate [biological oxygen demand] . . . [and] metals [if any] . . . below detection limits or background conditions." T.1923. But "some materials get in" (T. 2106) despite efforts to exclude them. "Demolition debris can have oiled floors and creosoted pilings as part and parcel of the structure." T. 3008. Old paint contains lead and cadmium. Debris from old houses can include rat poisons. Grass clippings "could contain small amounts of herbicides and pesticides." T.2101. In fact, "it's not unusual for yard waste to be very rich in biocides." T. 3009. Such chemicals are used in Jacksonville. When autopsies of seagulls found at the Girvin Road landfill revealed traces of diazanon, tests of water taken from "the stormwater ponds in the subdivision across the street" (T.990) showed diazanon was present there. Bioassays the DER runs on effluent from the City's Buckman wastewater treatment plant regularly report toxicity in excess of allowable limits (T.1877-8) and the EPA has "identified malathion and diazanon as the toxicants," (T. 1881) which are killing at least one species of flea in certain standard laboratory tests performed on the effluent. Leachate Leakage The composite liner would not keep all leachate generated in the Class I landfill from reaching the naturally occurring soils underneath, and eventually the groundwater under the site. Even under normal operating conditions, and even on the City's optimistic assumption that it can achieve a permeability of 1 x 10-7 centimeters per second, thousands of gallons of leachate a year would escape through flaws in the liner while the landfill was in operation. If leachate drain pipes burst or torrential rains required backing leachate up in the cells, thousands of gallons a day could leak. If two lifts of clayey sand achieve a permeability no lower than 1 x 10-5 centimeters per second, millions of gallons of leachate would enter the groundwater over the ten-year active life of the landfill, even without burst pipes or extraordinary precipitation. Once the Class I landfill attained the design height, it would be capped with impermeable materials to minimize leachate generation. As with the liner underneath, the impermeable cap would be covered with sand to facilitate drainage. Vegetation would hold the drainage soil in place. Closure plans have already been drawn, but they are subject to revision and require DER approval before implementation. If necessary, side slopes could be lined to prevent leachate seepage there. Closure would reduce, but would not end, leachate production and leakage. Virtually impermeable to water, high density polyethylene is highly permeable to certain permeants, including some that occur in landfill leachate. Leachate constituents known as "aromatic hydrocarbons" move "right on through" (T. 3017) high density polyethylene. To some extent, the montmorillonite component of the liner under the Class I area would impede these materials' movement into naturally occurring soils. The evidence did not quantify the montmorillonite's efficacy in this regard, but the City's expert's testimony that leakage of this kind would be "insignificant" (T. 830) went unrebutted. Permeation aside, the rate at which leachate leaks depends on the nature, number and size of flaws in the synthetic liner, the height and duration of the leachate head above the defects, and the transmissivity of what is underneath. Here transmissivity turns both on the hydraulic conductivity of the clayey sand in the vicinity and on the extent of air spaces between the clayey sand and the overlying high density polyethylene. Sand grains cause microscopic spaces, while imperfections in the montmorillonite layer and wrinkling of the polyethylene cause larger spaces. Leachate leaking into a space between the geomembrane and the soil spreads over a larger area before penetrating the clayey soil, in correspondingly larger volumes. Calculations predicated on the transmissivity characteristics of the geonet and the sand layer above it demonstrate a theoretical leachate flow over the liner so rapid that leachate would never accumulate on the geomembrane to a depth of as much as a tenth of an inch. But these calculations assume no ponding behind wrinkles in the synthetic liner, or any other impediment to the flow of leachate. Especially since holes in liners are likely to occur near wrinkles (because stresses are greater there) a more realistic assumption, for calculating leachate leakage rates, is a head of one inch, "the smallest practical hydraulic head you can achieve." T. 2994. On the twelfth day of hearing, when St. Johns County's liner expert testified that a six-inch layer of the montmorillonite might result in permeability as high as 5 x 10-4 centimeters per second, the City had not yet amended its application to increase the thickness of the clayey sand layer from six inches to twelve. The City's proposal now calls for two lifts of a 20 percent clayey sand with a saturated hydraulic conductivity in situ of 1 x 10-7 centimeters per second. This can be achieved, if at all, only with material that laboratory tests indicate has hydraulic conductivity of 1 x 10-9 centimeters per second or less. "[I]f you put down clay that the lab says has a permeability of 10 to the minus 7 centimeters per second, . . . when you put it down in the field you get from one to two orders of magnitude greater permeability than that. . . . related to how thick it is." T. 2988. Even a three-foot liner comprised of six lifts ends up with conductivity ten times greater than the same material under laboratory conditions. Mr. Deans, who designed the liner for the City, testified that a permeability of 1 x 10-7 centimeters per second was "readily achievable" even with six inches of clayey sand, but he had never designed a liner before, and his testimony in this regard has not been credited. To judge from its eleventh- hour amendment, the City did not believe it, either. Only two lifts are to comprise the clayey sand layer. No study of a clayey sand layer as thin as 12 inches has found hydraulic conductivity of less than 1 x 10-5 centimeters per second. Three lifts are necessary to create an effective barrier. "[Y]ou need at least three lifts to get the middle one hopefully working right." T. 2987. "[E]ngineers believe that the bottom layer gets fouled, the top layer cracks and has problems. Your best chance is the in between layers. You need at least three layers, and they would rather have four to be reasonable, and EPA says six." Id. Studies of twelve-inch liners put down in two lifts ("[t]he thinnest one we found anybody had ever studied" T. 2980) showed them to be "inadequate." T. 2987. With an inch of head, assuming defects with an average area of 1 x 10-5 square meters, an assumption with which all the experts seemed comfortable (the City's expert assumed larger holes), the published EPA formula yields a per defect leakage rate of 6.7598 x 10-11 cubic meters per second, assuming hydraulic conductivity for the montmorillonite layer of 1 x 10-7 centimeters per second. But plans to use only two lifts to form a 12-inch layer do not give reasonable assurance of vertical hydraulic conductivity that low. Mr. Coram's testimony to the contrary, expressly predicated on reports of laboratory tests on samples, did not address the evidence that laboratory tests do not tell the whole story, in the case of a thin layer of clayey sand compromised not only by inherent imperfections, but also by highly permeable subgrade soils, kneaded into it by the sheepsfoot. Because "clods are broken down in the laboratory and stones and cobbles are screened from the sample . . . the effects of both are not accounted for in permeability tests on laboratory compacted samples." City's Exhibit No. 190. Substituting a hydraulic conductivity of 1 x 10-5 centimeters per second, the EPA formula yields a leakage rate between 57 and 58 times greater: 3.8898 x 10-9 cubic meters per second. Although the EPA's most recently published leak rate formula makes no allowance for less than an ideal fit between the components of a composite liner, City's Exhibit No. 190, the author of the EPA formula, who testified for St. Johns County, subscribed to modifications to the formula developed to take this factor into account. DER's Exhibit No. 35. The montmorillonite layer's hydraulic conductivity is an unrealistically low measure of the transmissivity of the medium underneath the polyethylene. Using it for this purpose, without adjustment, ignores inevitable, intervening air spaces. Perfect contact between a synthetic liner and the soil it overlies cannot be accomplished, even in a laboratory setting. On a project of the kind proposed, contact would range from good, where the relatively larger size of sand grains in the clayey mix creates air spaces, to poor, where wrinkles (left in to avoid the weakening effects of stretching the material) cause much larger air spaces. No expert found fault with the more recent formulae (Bonaparte/Giroud) set out in DER's Exhibit No. 35, and none quarreled with the proposition that the published EPA formula made unrealistic assumptions about the contact between polyethylene and clayey sand. The Bonaparte/Giroud formula that assumes good contact yields a leakage rate of 1.6090 x 10-8 cubic meters per second per defect, a little more than four times what the EPA formula predicts for an ideal fit, assuming an inch of head and vertical hydraulic conductivity for montmorillonite in situ of 1 x 10-5 centimeters per second. Assuming poor contact, without varying any other assumptions, yields a leakage rate approximately 5.5 times greater: 8.8115 x 10-8 cubic meters per second. In its proposed recommended order, at page 35, DER accepts, at least for purposes of argument, the proposition that contact between soil and geomembrane would be poor in places, and calculates a leachate leakage rate of 5.45 x 10-3 gallons per day (2.3887 x 10-10 cubic meters per second per defect.) But this assumes that "the permeability of the City's clay liner will be 1 x 10- 7 cm per second and the maximum head over liner will be 0.062 inches." The evidence showed that the maximum head could not be kept below one inch, and did not give reasonable assurances that two lifts would result in vertical hydraulic conductivity of 1 x 10-7 centimeters per second for the clayey layer. Substituting an inch for .062 inches gives a rate of 2.9177 x 10-9 cubic meters per second. Substituting 1 x 10-6 for 1 x 10-7 and an inch for 0.062 inches, the leakage rate becomes 1.6034 x 10-8 cubic meters per second. Groundwater Contamination Uncontroverted expert opinion put the flow of groundwater under the Class I disposal area at 0.063 cubic feet or 0.47 gallons per day (2.0592 x 10-8 cubic meters per second) through a hypothetical square or cube one foot on a side. Except under unusual conditions, leachate leaking from the Class I facility would, before entering the groundwater, pass through approximately a foot of fill dirt or naturally occurring soils, which consist in large part (92 to 99 percent) of relatively inert, quartz sand. The presence of organic materials, however small the quantities, raises the prospect of adsorption and other chemical reactions, before steady state is attained. Physically, the soil would disperse the leachate, diminishing concentrations of leachate constituents entering groundwater. After such attenuation as the soil afforded, leachate would enter the groundwater, which would dilute and further disperse it, although not nearly as dramatically as the City's toxicologist testified. This witness assumed uniform mixing, rather than the discrete plume which persons with greater expertise in groundwater contamination convincingly predicted. By using the rate of "groundwater flow beneath a defect and the rate of leakage through that defect . . . [he] c[a]me up with a volume to volume dilution factor to identify a concentration in the groundwater." T. 1214. Because Dr. Jones took an unrealistically low leakage rate as a starting point, he predicted an unrealistically low concentration of one part leachate to 4,400 parts groundwater, inside a cubic foot immediately below each leak. Concentrations vary directly with the leakage rate per defect. T. 1224. The formula that assumes good, but not ideal, contact between liner components yields a leakage rate per defect of 1.609 x 10-8 cubic meters per second, if the layer of clayey sand has hydraulic conductivity of 1 x 10-5 centimeters per second. Substituting this leakage rate, the City witness' methodology yields a dilution ratio of 2.0592 parts groundwater to 1.609 parts leachate, or 1.2798:1, more than a hundred times less than the 130:1 dilution ratio that the City concedes is the minimum it must prove, at the edge of the zone of discharge. See Respondent City of Jacksonville's Motion to Strike St. Johns County's Memorandum Concerning Leachate Rates, p. 5. Substituting the coefficient for poor contact, the ratio in the hypothetical cube under the landfill becomes a paltry 2.0592 parts groundwater to 8.8115 parts leachate or .2337:1. Using Dr. Jones' methodology, a leakage rate of 1.6034 x 10-8 cubic meters per second per defect would result in leachate concentrations in groundwater of one part leachate to 1.2483 parts groundwater. Substituting a rate of 2.9177 x 10-9 cubic meters per second per defect yields a ratio of 2.0592 parts groundwater to .29177 parts leachate, or one part leachate to 7.0576 parts ground water. Even if the contact between geomembrane and montmorillonite were uniformly good and the clayey sand layer had a permeability of 1 x 10-7 centimeters per second at every point, a dilution ratio of only 37.4444:1 would result. In 132 acres of high density polyethylene, the evidence showed that 660 flaws could reasonably be anticipated, and that 132 flaws were absolutely unavoidable. Methylene chloride would end up in the groundwater in proscribed, carcinogenic concentrations as far away as 20 feet from many leaks within 90 days. Under some leaks, perhaps all, benzene, a proven human carcinogen, would also occur in prohibited concentrations. As leachate plumes dispersed, concentrations would diminish, eventually to levels at which they pose "potentially acceptable" (T. 1475) risks even in the case of "a 70-year water consumption of two liters of water per day by a 70-kilogram adult." T. 1217. No evidence suggested that they would remain in concentrations above these levels by the time they reached the edge of the zone of discharge. City's Exhibit No. 193, which uses a leakage rate much lower than the range of leakage rates likely to occur, if the landfill is built, predicts concentrations of various leachate constituents at the edge of the zone of discharge, assuming a leak at the edge of the disposal area. Multiplying predicted concentrations by quotients, obtained dividing likely leakage rates by the assumed rate, suggests carcinogenic leachate constituents would not occur in prohibited concentrations at the edge of the zone of discharge. But extrapolating in this fashion also suggests that violations may occur outside the zone of discharge, absent attenuation in the vadose zone, in the event of a leak at the edge of the Class I disposal area, for iron, manganese and methyl ethyl ketone. Groundwater Monitoring The City proposes to place monitoring wells at intervals of 250 to 500 feet around the Class I and Class III disposal sites. Some 25 shallow monitoring wells would be located 50 to 100 feet from the deposition areas, within the zone of discharge. In addition, seven clusters, each consisting of three wells screened at different depths, would punctuate the boundary of the zone of discharge. A cluster of wells upgradient would make it possible to monitor background conditions. With two-inch diameters and ten-foot screens, each well would receive a flow of less than a gallon a day. The contaminant plume from the Class III landfill would be large enough to be detected readily in samples drawn from a number of wells. But there was testimony that the plume, even from a 10-foot wide leak at the edge of the Class I disposal area, could pass between two wells 500 feet apart, undetected. Rather than a single large leak, moreover, the experts predict hundreds of small leaks in the Class I disposal area liner. The assumption is that flaws in the geomembrane would have an area of only one tenth of a square centimeter, on average. Any one of the plumes emanating from such a leak could easily pass undetected through a 500-foot gap between monitoring wells. The monitoring plan apparently relies on the great number of leaks expected. But even if samples from a monitoring well revealed a leak, the magnitude of hundreds of other leaks would not be disclosed. Well Contrived After the City filed its application for a permit to construct a landfill, but before DER had issued its notice of intent to grant the application, four wells were put in on the McCormick property, within three feet of the southern boundary of the City's property, and within 205 feet of the proposed Class III disposal area. The wells are more than 500 feet from the lined, Class I disposal area. Spaced at 1,000-foot intervals, within a 125- foot-wide utility easement in favor of the City of Jacksonville Beach, three of the wells are 25 feet deep and one is 28 feet deep. McCormicks' Exhibit No. 7. Each consists of a length of PVC pipe, 1 1/4" in diameter, leading to a red pitcher pump mounted on a wooden platform supported by four fence posts. City's Exhibit No. 194. Pumps of this kind must "periodically be pumped and primed or they have to periodically be taken apart and have the internal seals and leather valves replaced." T.2005. On April 7, 1988, the St. Johns River Water Management District issued a warning notice to "Haden McCormick" alleging that the wells had not been grouted, had been dug without necessary permits, and had not been the subject of required well completion reports. The next day, the St. Johns County Environmental Protection Board, apparently in response to applications inspired by the warning notice, issued a permit for each well designating the "usage" of each as irrigation. McCormicks' Exhibit No. 7. Well completion reports dated April 14, 1988, reported that the wells had been grouted. McCormicks' Exhibit No. 3. Asked the purpose of the wells in a deposition on April 25, 1988, J. T. McCormick said, "We need to monitor what [the landfill is] doing . . . [W]e need to . . . prepare ourselves for having people live in this area, to occupy it, to monitor it." T. 2227-8 A week earlier J. C. Williamson, Jr. had requested on behalf of B.B. McCormick and Sons, Inc. that the St. Johns County Environmental Protection Board amend the permits to show well usage as "Private Potable" instead of "Irrigation". This request was granted on April 27, 1988. McCormicks' Exhibit No. 2. On May 2, 1988, St. Johns River Water Management District's chief hydrologist wrote a lawyer for the McCormicks that "the completion reports submitted by a licensed driller, and the St. Johns County permits fulfill the requirements of the District." McCormicks' Exhibit No. 1. Analysis of samples of water taken from the wells on February 27 and 28, 1989, revealed total coliform levels acceptable for private wells. John Haydon McCormick explained the decision to put the wells in: [D]uring that week the City had filed their application with the DER which, in a sense, fixed their design . . . and when we became aware that this Class III landfill was as close as it is to our border, we became concerned about the future use of potable drinking water, and after consulting with counsel we were informed that we could legally install wells along that border. T. 2242. No owner of the property where the wells are located lives on the property nor, as far as the record shows, has an owner or anybody who does live on the property ever drunk water from the wells. About a half mile from the City's property are two other wells near a house on the McCormick property. When an owner's son drank water from one or more of the wells, as recently as the fall of 1988, he had to take water to the site with him in order to do it. The hand pumps require priming and nobody has bothered to store water near them for that purpose. On February 26, 1989, when the City's expert arrived for "splitting samples to submit to different laboratories," (T.1007) The "pumps were in a 20-gallon washtub in the back of . . . one of Mr. McCormick's employee's trucks. They were all removed from the well heads . . . [apparently] being soaked to generally recondition the seals in the pumps and to sanitize the pumps." T.2008 Two "of the old leather seals from the pumps [were] on the ground." T.2009. Within the shallow aquifer, groundwater flows from the wells northerly underneath the proposed Class III disposal area in the direction of Durbin Swamp. Use of the four existing wells "would in no way modify the groundwater flow system." T. 2045. But a well or wells could be so constructed on the McCormick property that continuously pumping from them would reverse some of the groundwater flow under the proposed Class III disposal area, to the extent that water flowing from beneath the Class III disposal area could be drawn from one of the existing wells along the McCormick boundary. T. 2075-80. Nor would consumptive use permits be necessary to dig wells which could cause such a change in groundwater flows. T. 2075. When the City discovered the wells abutting the southern boundary of its property, it did not direct its engineers to alter the design of the landfill to preclude solid waste disposal within 500 feet of the wells. The total project cost, excluding legal fees, is estimated in the neighborhood of $46,000,000. Redrawing the plans now to reduce the size of the Class III disposal area, without altering the size of the Class I disposal area, would take two to three months, and cost approximately $100,000. This approach would require reducing the capacity of the Class III area from 4.1 million cubic yards to 2.5 million cubic yards and, unless construction debris, which can be disposed of without a DER permit, were diverted elsewhere, its useful life from about ten years to about six years. Tipping fees would have to be higher "to recover the capital fixed costs over fewer tons." (T. 2208) Increased design costs alone would require recouping an additional 4 cents per cubic yard (more considering the time value of money) from tipping fees for Class III debris. Operations would be less efficient and presumably more expensive. T. 2207. Alternatively, the entire facility could be redesigned to achieve the same capacity and useful life as now contemplated. Such a redesign would require four to six months' work and cost approximately $250,000. Recovering this cost through increased tipping fees for Class III wastes would add slightly more than 6 cents a cubic yard (again ignoring the time value of money.) Alternative sites for disposal of Class III waste are available to the City. Indeed the site for which the City now seeks a permit was not even among the ten sites originally considered for the project. T. 2224-5. Decreased transportation costs to another site closer to the source of such waste might more than offset increased tipping fees. But separate facilities could create other problems. Ms. Nogas explained: From an operations standpoint . . .If I run out of Class III area and . . . site a separate Class III area somewhere else, if I had a truck coming to that facility and he really should have been in a Class I area, and I say "No, go out the gate and go five miles down the road . . .[to the] Class I facility," . . . I have a much better chance of . . . him never showing up at my Class I facility. T 2208-9. On the other hand, when asked about placing a Class III facility elsewhere in Duval County, Ms. Nogas, reiterating an earlier statement, testified, "[I]f that were what we had to go to, I would have no operational problems with it." T. 221. Mr. Wells' testimony that there "are 16,000 acres of less environmentally flawed acres seven to 12 miles from the generating centroid accessible from four-lane roads and not near residential or commercial properties," (T. 1248) and that the proposed site "is the furtherest site from the generating centroid, 21 and three-quarters miles to the dump site, and will cost taxpayers an extra $3 million to $5 million a year in longer haul time" (T. 1247) was received on the issue of the decisionmakers' credibility only.
Recommendation It is, accordingly, RECOMMENDED: That DER deny the City's request for variance. That DER deny the City's application for a permit to construct a landfill. That DER deny the City's application for a dredge and fill permit. That DER grant the City's application for a permit for management and storage of surface waters, on conditions proposed in the intent to issue, unless modified by agreement of all parties. DONE AND ENTERED this 16th day of October, 1989, in Tallahassee, Leon County, Florida. Robert T. Benton, II Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the division of Administrative Hearings this 16th day of October, 1989. APPENDIX A Petitioner St. Johns County's proposed findings of fact Nos. 1-4, 6, 10-12, 14, 16, 18, 21,23, 24-28, 33, 35, 37, 38, 41-45, 47-48, the first sentence of No. 51, Nos. 52-56, 57 except for the first sentence, which is rejected, 58, 59, 62, 64, 66, 68-74, 95-103, 106-109, 111- 116, 118, 131, 132, 133 except for subpart 7, 134, 136 and 137 have been adopted, in substance, insofar as material. With respect to petitioner St. Johns County's proposed finding of fact No. 5, and the second sentence of petitioner St. Johns County's proposed finding of fact No. 51, the design rate is not the same as the current rate of deposition. Petitioner St. Johns County's proposed findings of fact Nos. 7, 8, 9, 13, 15, 17, 22, 75, 110 and 138 relate to subordinate matters. Petitioner St. Johns County's proposed finding of fact No. 19 accurately recites the testimony. Petitioner St. Johns County's proposed finding of fact No. 20 is immaterial. With respect to petitioner St. Johns County's proposed finding of fact No. 29, the City's evidence that leakage of this kind was insignificant went unrebutted. Petitioner St. Johns County's proposed findings of fact Nos. 32 and 120-123 are immaterial to the present application. With respect to petitioner St. Johns County's proposed finding of fact No. 30, the City's estimates were unreasonably low. With respect to petitioner St. Johns County's proposed finding of fact No. 31, the evidence showed that nine gallons a day was at the upper limit, not that it would actually occur. With respect to petitioner St. Johns County's proposed finding of fact No. 34, at least 13 substances occur in concentrations that exceed health-based standards. Petitioner St. Johns County's proposed findings of fact Nos. 36 and 63, 117, 119 and 135 are proposed conclusions of law. With respect to petitioner St. Johns County's proposed finding of fact No. 39, the probability of a leak on the edge of the disposal area was not established. With respect to petitioner St. Johns County's proposed finding of fact No. 40, the evidence did not show that when "two or more toxic substances are combined" they necessarily have synergistic impacts. With respect to petitioner St. Johns County's proposed finding of fact No. 46, the City's assumption of no attenuation was an appropriately conservative approach that is not inconsistent with the City's unrefuted testimony that attenuation would occur. With respect to petitioner St. Johns County's proposed finding of fact No. 49, the evidence did not prove that the City would allow four feet of leachate to stand on the liner. Petitioner St. Johns County's proposed findings of fact Nos. 50 and 60 immaterial to the present application. With respect to petitioner St. Johns County's proposed finding of fact No. 61, the evidence did not establish the contentions following the clause ending "and into Durbin Creek,". With respect to petitioner St. Johns County's proposed findings of fact Nos. 65 and 67, the McCormick wells have served ornamental and talismanic purposes, but they were not shown to be potable water supply wells, within the meaning of the rule. At the time of hearing the pumps did not function and were not mounted on the wells. Petitioner St. Johns County's proposed finding of fact No. 76 has been adopted, in substance, insofar as material, except that there was at least one effort to collect toxic wastes in Jacksonville. With respect to petitioner St. Johns County's proposed findings of fact Nos. 77 through 94, proposed permit conditions are not proposed findings of fact. With respect to petitioner St. Johns County's proposed finding of fact No. 124, the evidence was clear that more wetlands were to be destroyed than were to be created. Petitioner St. Johns County's proposed finding of fact No. 125 is rejected as against the weight of the evidence. With respect to petitioner St. Johns County's proposed findings of fact Nos. 126, 127 and 128, mitigation , particularly as regards the wood stork, if the landfill is built. Petitioner St. Johns County's proposed finding of fact No. 129, Durbin Creek enters Julington Creek, shortly before the latter reaches the river. Findings of fact proposed by petitioners J.T. McCormick and the Estate of Benjamin R. McCormick (McCormicks) Nos. 1-4, 6-10, 13, 15-17, 20, 21 and 23 have been adopted, in substance, insofar as material. With respect to McCormicks' proposed finding of fact No. 5, a preponderance of the credible evidence did not establish that the wells would be used to supply potable water in the future, even if the pumps are repaired to make it possible. Nor did the evidence establish any such authentic, "non-forensic," use in the past. With respect to McCormicks' proposed finding of fact No. 11, evidence was adduced that other sites had been considered by engineers the City engaged. T. 2224-5. With respect to McCormicks' proposed finding of fact No. 12, testimony put the delay at two to three months. T. 2139. The City could have avoided this delay. McCormicks' proposed finding of fact No. 14 has been adopted, in substance, insofar as material, except that the proportion of the Class III waste stream construction and demolition debris comprises is not stated at T. 2149. With respect to McCormicks' proposed findings of fact Nos. 18 and 19, the four and six cents per ton computations ignore the time value of money, among other things. McCormicks' proposed finding of fact No. 22 is immaterial. McCormicks' proposed finding of fact No. 24 is properly a proposed conclusion of law. Findings of fact proposed by Florida Wildlife Federation, Inc., St. Johns County Audubon Society, Sierra Club, Inc., Coastal Environmental Society and River Systems Preservation, Inc. came in two unnumbered installments. Findings of fact have addressed the substance of each. Without numbering, it is difficult to treat the material. Petitioner STOP's proposed findings of fact Nos. 5-7, 9-10, 12-18, 20, 22- 24, 26-27, 29, 32-47, 49, 50, 52, 55-57, 59-60, 62, 63, 66, 67, 69, 70, 72 and 73 have been adopted, in substance, insofar as material. Petitioner STOP's proposed findings of fact Nos. 1-4, 30, 31, 65, 71, 75 and 76 are properly proposed conclusions of law in part and relate otherwise to DER's preliminary analysis, which is technically immaterial. With respect to petitioner STOP's proposed findings of fact Nos. 8 and 58, Mr. Kappes said he had seen alligator on site but, when asked for specifics, testified to tracks they had left in the southeast corner of the site. Equally ambiguously, the City stated in its draft application that alligator had been "noted" on the property. The evidence did not show that ospreys are protected or listed in Duval County. Petitioner STOP's proposed findings of fact Nos. 11 and 74 relate to subordinate matters. With respect to petitioner STOP's proposed finding of fact No. 19, the inference that all commensals is present is problematic here, since the gopher tortoises were relocated by man from a site many miles away. With respect to petitioner STOP's proposed finding of fact No. 21, 80 to 82 of 105.7 acres of gopher tortoise habitat would be destroyed. Petitioner STOP's proposed finding of fact No. 25 is immaterial to this application. With respect to petitioner STOP's proposed finding of fact No. 28, Mr. Wiley so testified. With respect to petitioner STOP's proposed findings of fact Nos. 48, 51 and 64, although the conservation easement on uplands would not result in additional habitat, it would preclude further diminution. With respect to petitioner STOP's proposed findings of fact Nos. 53 and 54, no eagles are currently nesting on site, and Eagle Nest Island, where eagles nested until 1983, is off site. With respect to petitioner STOP's proposed finding of fact No. 61, the evidence did not establish that Mr. Kappes saw the red-cockaded woodpecker on site, even though he found six active nests within three miles of the site. With respect to petitioner STOP's proposed finding of fact No. 68, Dr. White so testified. DER's proposed findings of fact Nos. 1-9, 11-15, 17, 24, 26, 33, 37, 39, 41-45, the first three sentences of No. 50, Nos. 52-56, 62-64, 66, 67, except as regards inherent legislative facts, 70-87, 89-92 and 95 have been adopted, in substance, insofar as material. With respect to DER's proposed finding of fact No. 10, 0.9 acres of wetlands contiguous to Durbin Swamp and within the jurisdiction of the St. Johns River Water Management District would be used for a storm water retention basin. DER's proposed findings of fact Nos. 18 and 20 have been adopted, in substance, except that these steps do not ensure or guarantee a quick return of water quality functions. DER's proposed findings of fact Nos. 21, 32, 35, the last sentence of No. 50, Nos. 51, 88 have been rejected as against the weight of evidence. With respect to DER's proposed findings of fact Nos. 22 and 28, mitigation areas with deep ponds in the middle will permit fish to avoid the conditions under which wood storks feed. With respect to DER's proposed finding of fact No. 23, the steep sided ponds, sparser canopies and lesser extent of created isolated wetlands offset their "higher quality." With respect to DER's proposed finding of fact No. 25, the mitigation proposed does not amount to a one to one ratio. While significant, the easements preserve the status quo and do not compensate for lost wetland functions. With respect to DER's proposed finding of fact No. 27, the evidence suggested no reason why bears would not forage in isolated, as well as contiguous wetlands. With respect to DER's proposed finding of fact No. 29, to the extent possible, existing trees would be transplanted; if they all survived, the number of perches would be undiminished, except for branches broken in the process. With respect to DER's proposed finding of fact No. 30, sightings nearby and habitat on site amount to evidence of use of the site. As regards the indigo snake, testimony that these animals were introduced to the site was uncontroverted. With respect to DER's proposed finding of fact No. 31, alligator tracks were found in the southeastern part of the site. With respect to DER's proposed finding of fact No. 34, no southeastern kestrel nests were found on site. With respect to DER's proposed finding of fact No. 36, it is not in the public interest to issue a permit for a lined landfill that would cause pollution in violation of DER's water quality standards. If a landfill were properly permitted, it would be in the public interest to have access. With respect to DER's proposed finding of fact No. 38, the first sentence (which seems to contradict the fourth) has been adopted, in substance, insofar as material. With respect to DER's proposed finding of fact No. 40, there was no evidence of cumulative impacts to Durbin Swamp, as opposed to Durbin and Julington Creeks. With respect to DER's proposed findings of fact Nos. 46-48, the clayey sand, placed in two six-inch lifts, would have much greater permeability as a unit than samples of the same material screened for certain imperfections and tested in the laboratory. In the field, it would not be possible to remove all clods and other materials that make for greater vertical hydraulic conductivity of the unit. Subgrade mixing would occur, in putting down the first of the two lifts. A 12-inch layer would be many more times transmissive than a liner of the same material put down in six six-inch lifts to attain the three feet DER requires, when no synthetic liner is used. Mr. Fluet did not testify that a 12-inch layer would achieve a permeability of 1 x 10-7 centimeters per second. He testified that nobody who had studied 12-inch layers had reported permeability of less than 1 x 10-5 centimeters per second for a clayey layer of that thickness. With respect to DER's proposed finding of fact No. 49, the geomembrane is subject to the effects of pressure and temperature variation would contribute to wrinkling. With respect to DER's proposed finding of fact No. 57, leachate leakage would diminish after closure, but would not stop altogether. With respect to DER's proposed findings of fact Nos. 59 and 60, the working hypothesis is that even a single molecule of certain leachate constituents may initiate cancer, although concentrations below the levels identified are said to pose no more than an acceptable risk of doing so. DER's proposed finding of fact No. 61 describes the methodology correctly, but the particular results have not been accepted. With respect to DER's proposed finding of fact No. 65, predicted concentrations depend on the leakage rate assumed. With respect to DER's proposed finding of fact No. 68, data showing the composition of discharges to ground water from other Class III landfills were not presented. Supposed "legislative facts" do not constitute evidence. With respect to DER's proposed finding of fact No. 69, the evidence did not show what concentrations of biocides or other chemical constituents were likely to be. With respect to DER's proposed finding of fact No. 93, the phrase "monitoring well" was not used. With respect to DER's proposed finding of fact No. 94, wells Nos. 21 and 22 were between 25 and 35 feet deep. Haydon McCormick testified that a shallow well near the house was for potable water supply. DER's proposed finding of fact No. 96, has been adopted, in substance, except that additional time might not be required for permitting. With respect to DER's proposed findings of fact Nos. 97 and 99, balancing of social and economic interests is appropriate only if hardship is proven, and immaterial otherwise. The City's proposed findings of fact Nos. 1-9, 16-18, 20-25, 30, 33, 35-38, 42, 44, 46, 49, 50, the first two sentences of No. 55, Nos. 58-62, 65, 73, 74, except for the last sentence, Nos. 75, 77-83, 88-92, 94-100, 104, 107, 108 and 110 have been adopted, in substance, insofar as material. With respect to the City's proposed finding of fact No. 10, despite timbering of the uplands the site was characterized as "relatively unaltered." With respect to the City's proposed finding of fact No. 11, no decline in water levels was shown to be irreversible. With respect to the City's proposed finding of fact No. 12, the study was of "trivial value." With respect to the City's proposed finding of fact No. 13, bald eagles and wood storks do make use of the site and indigo snake(s) were set loose there. With respect to the City's proposed finding of fact No. 14, a witness testified to his "confidence" (T.2918) that the kestrel he spotted was a Southeastern kestrel. Signs of alligator were found near the southeast corner of the property. With respect to the City's proposed finding of fact No. 15, hunting was mentioned. The City's proposed findings of fact Nos. 19, 54, 56 and 84 pertain to subordinate matters. With respect to the City's proposed finding of fact No. 26, the witness so testified. With respect to the City's proposed finding of fact No. 27, it was not proven that noise would be "minimized." With respect to the City's proposed finding of fact No. 28, bears could move through the culvert, but elsewhere the access road (particularly during the day), fences and human activity on site would indeed "impede black bear movement in the area." The City's proposed findings of fact Nos. 29, 48, the last sentence of 55, Nos. 57, 71, 72, 85, 87 and the last sentence of 101 have been rejected as being against the weight of the evidence or as unsupported by the preponderance of evidence. With respect to the City's proposed finding of fact No. 31, mobility will not assure successful relocation if existing populations are fully utilizing habitat in the vicinity. The City's proposed findings of fact Nos. 32, 86 and 93 are properly proposed conclusions of law. With respect to the City's proposed finding of fact No. 34, groundwater was shown unlikely to reach solid waste on site. With respect to the City's proposed finding of fact No. 40, the maximum head would not be less than one inch. With respect to the City's proposed finding of fact No. 41, such sand might not be available on site. With respect to the City's proposed finding of fact No. 43, some leachate would leak through the liner. With respect to the City's proposed finding of fact No. 45, some rainwater would infiltrate. With respect to the City's proposed finding of fact No. 47, the evidence did not show that the clayey sand layer would attain so low a vertical hydraulic conductivity. If these liners have performed well, it has not been without leakage, both through flaws and by permeation. With respect to the City's proposed finding of fact No. 51, the subgrade would be inspected, in an effort to assure complete removal of sharp objects. With respect to the City's proposed findings of fact Nos. 52 and 53, permeability is specific to the permeant. The values quoted are for water. High density polyethylene is highly permeable to aromatic hydrocarbons. That liners leak is not speculation. With respect to the City's proposed finding of fact No. 63, the design engineer envisioned circumstances that would require backing leachate up in the landfill. With respect to the City's proposed finding of fact No. 64, violations were proven, in the absence of sufficient attenuation in the vadose zone, and attenuation there was not quantified. With respect to the City's proposed findings of fact Nos. 66 and 67, these evaluations assumed unrealistically low leachate leakage rates. With respect to the City's proposed finding of fact No. 68, this elaborate house of cards bears little relationship to the language of the free from rule. But this approach, too, shows violations, if realistic leakage rates are used. With respect to the City's proposed finding of fact No. 69, credible and credited evidence of dramatically higher leachate leakage rates than they assumed contradicted their conclusions. With respect to the City's proposed finding of fact No. 70, the witness so testified. With respect to the City's proposed finding of fact No. 76, the precise constituents of the Class III leachate were not proven. With respect to the City's proposed finding of fact No. 102, the witness so testified. With respect to the City's proposed finding of fact No. 103, the well that Haydon McCormick jetted in was 25 to 35 feet deep. With respect to the City's proposed findings of fact Nos. 105 and 106, wells could be placed so that enough water drawn from them would reverse the gradient and cause pollutants to move toward the McCormick property. With respect to the City's proposed finding of fact No. 109, the evidence about the effect on operations was ambiguous. With respect to the City's proposed finding of fact No. 111, it is unlikely that the McCormicks would take steps to reverse the flow of groundwater. APPENDIX B Three methods of calculating per defect leachate leakage rates (in cubic meters per second) were proven at hearing, each expressed as an equation or formula requiring values for three variables, for their solution, viz.: h = height of leachate head over defect (in meters) a = area of defect (in square meters) Ks = permeability (vertical hydraulic conductivity) of clayey sand layer beneath defect (in meters per second) The method advocated by the City, published by the EPA, and shown (by the author) to reflect ideal contact between liner components, which does not obtain in practice, is: Q = (0.7) x (h) x (a0.1 x Ks0.88). The method advocated by the County, endorsed by the author of the formula EPA published, and shown to reflect good contact between liner components, shown likely to occur in places, is: Q = (0.21) x (h0.9) x (a0.1 x Ks 0.74) The method advocated by the County, endorsed by the author of the formula EPA published, and shown to reflect poor contact between liner components, shown likely to occur in places, is: Q = (1.15) x (h0.9) x (a0.1 x Ks 0.74) In each case, Q represents the flow of leachate through each defect. COPIES FURNISHED: Carlos Alvarez and Carolyn S. Raepple Hopping, Boyd, Green and Sams Post Office Box 6525 Tallahassee, Florida 32314-6526 Harrison D. Upchurch and Frank D. Upchurch, III Upchurch, Bailey, and Upchurch, P.A. Post Office Box 170 St. Augustine, Florida 32085-0170 Joseph M. Glickstein, Jr. Glickstein and Glickstein 444 Third Street Neptune Beach, Florida 32233-5111 David S. Dee and Allan Wagner Carlton, Fields, Ward, Emmanuel Smith & Cutler, P.A. Post Office Drawer 190 Tallahassee, Florida 32302 C. Rufus Pennington, III Margol and Pennington, P.A. Suite 1702, American Heritage Tower 76 South Laura Street Jacksonville, Florida 32202 Debra Swim 1323 Diamond Street Tallahassee, Florida 32301 Sidney F. Ansbacher Turner, Ford and Buckingham, P.A. 1904 Gulf Life Tower Jacksonville, Florida 32207 Dan Brooks Hendrickson and 104 Sixth Avenue 4620 Arapahoe Avenue Pass-A-Grille, Florida 32706 Jacksonville, FL 32208 Frank X. Friedman, Jr. T. R. Hainline, Jr. G. Stephen Manning Marcia P. Parker Rogers, Towers, Bailey, Jones & Gay 1300 Gulf Life Drive Jacksonville, Florida 32207 William H. Congdon and Chris McGuire 2600 Blairstone Road Tallahassee, Florida 32399-2400 Kathryn L. Mennella Post Office Box 1429 Palatka, Florida 32078-1429 Larry Gilmore 9131 Fort Caroline Road Jacksonville, FL 32225 Larry A. Wells 237 Pablo Road Ponte Vedra Beach, FL 32082 Dale H. Twachtmann, Secretary Department of Environmental Regulation 2600 Blair Stone Road Tallahassee, FL 32399-2400 =================================================================
The Issue The ultimate issue to be resolved in this proceeding is whether the Department should issue a permit allowing the construction of a wastewater treatment and disposal system as requested in the modified application filed by Thomas E. Wasdin. The applicant and the Department contend that reasonable assurances have been given that the proposed facility will not result in violations of any of the Department's rules or regulations. The Petitioner contends that the proposed facility is located too near to existing shallow water drinking wells and that the facility otherwise fails to comport with the Department's rules and regulations.
Findings Of Fact Petitioner is the president of Beach Woods of Brevard County, Inc. The corporation is the developer of "Beach Woods," a 376-unit planned unit development located in Melbourne Beach, Brevard County, Florida. One hundred eighty of the units have already been developed. Existing regional sewage treatment facilities operated by Brevard County are not adequate to accommodate the total number of units that the applicant proposes to develop. It appears that 24 more hookups are all that the existing facilities will tolerate. Beyond that number, a sewer moratorium is in effect, and unless the applicant can make some other arrangement for disposing of sewage, the development cannot be completed. The county has approved the planned unit development. In order to meet sewage treatment needs of the proposed development, the applicant is proposing to construct a "package sewage treatment plant" to accommodate waste that exceeds quantities that can be handled by existing regional facilities. Once the regional facilities are upgraded so that the development's sewage treatment needs can be accommodated, the applicant proposes to disassemble the package plant and utilize the regional facilities. The proposed plant would be a 50,000 gallons per day contact stabilization sewage treatment plant. Initially, it would be operated as a 5,000 to 15,000 gallons per day aeration plant. Once loads reach 18,000 gallons per day, it would become a contact stabilization plant. The Present collection and transmission system for sewage that exists at Beach Woods includes an 8-Inch collection station from which sewage flows to an existing lift station that pumps effluent via 6-inch pipes to the regional plant. When the proposed plant is completed, a computerized system would be set up to send effluent to the new plants when the limits that the regional plant can accommodate are met. Once the regional plant is upgraded to sufficient capacity, the bypass to the proposed plant would be eliminated, and all units would then be connected to the original collection system. The proposed treatment plant is based upon proven technology that has been in existence for more than 50 years. The plant should operate reliably, and proper consideration has been given to odor, noise, lighting, and aerosol drift. In close proximity to the plant, it is likely that there would occasionally be a "earthy smell" that would be noticeable, but not objectionable. Outside of the immediate proximity, no odor would be noticeable. Large fans would be operated in connection with the plant, and some noise would result. It does not, however, appear that the noise would be excessive or bothersome, even in the immediate vicinity of the plant. The plant would be lighted by street lights and would not result in any more excessive lights than normal street lights. The plant is not of the sort that aerosol drift is a likely problem. Adequate considerations have been given to providing emergency power to the plant in the event of a power outage. The plant could sit for at least 20 hours without power before any emergency would exist. If there was a power outage in excess of that period, emergency power sources are available. Consideration has been given to the 100-year flood plain. The plant has been placed at an elevation that keeps it outside of the 100-year flood plain. The land application system proposed by the applicant would utilize drain fields that would be alternately rested. Groundwater flows from the area of the proposed drain fields are in a southwesterly direction toward the Indian River. The Indian River in the location of the proposed facility is a "Class III surface water." Groundwater in the area of the proposed facility might be classified as either "G-I" or "G-II." Reasonable assurance has been given that the proposed sewage treatment plant would not operate in such a manner as to degrade surface or ground waters to the extent that any of the Department's specific water quality parameters set out in Chapter 17, Florida Administrative Code, would be violated. The proposed sewage treatment plant comports with local requirements and has been approved by Brevard County. The Allans Subdivision is a residential development that is located directly to the north of the Beach Woods development. Petitioner utilizes a shallow water well as a source of drinking water. The proposed land application site of the sewage treatment plant is located within 500 feet of the Petitioner's well. There are at least two other shallow water wells that serve as drinking water sources located within 500 feet of the proposed land application site. The applicant indicated a willingness to move the proposed facility so that no part of it would be located within 500 feet of the shallow drinking water wells. The evidence establishes that the plant could be moved to accomplish that. No specific plan, however was presented. Potential factual issues could exist respecting appropriate buffer zones for any relocation of the facility, even a minor relocation. The applicant is proposing to develop areas within 100 feet of the proposed facility. The applicant does not, however, propose to locate any public eating, drinking, or bathing facilities within 100 feet of the proposed plant or land application area. No map was presented during the course of proceedings before the Department of Environmental Regulation that preceded the formal administrative hearing or during the hearing itself to establish present and anticipated land uses within one mile of the boundaries of the proposed facility. The facility of such a size that it could not inhibit any conceivable present or proposed future land uses except within 500 feet of the proposed facility. Evidence was offered at the hearing from which it could be concluded that the Department has, in the past, issued permits for sewage treatment plants located within 500 feet of existing shallow drinking water wells. The testimony was that this has occurred despite a requirement in the Department's rules that there be a 500-foot buffer zone between any such plant and a shallow drinking water supply. No specific evidence was presented as to why the Department has allowed such a breach of its rules or why it should be allowed in this proceeding.
Findings Of Fact Kearney is engaged in the development of real property in and around Hillsborough County, Florida, and is located in Tampa, Florida. Corrugated is a Louisiana Corporation which maintains a local headquarters in Tampa, Florida, and is presently seeking a business outlet in Hillsborough County for the assembly and distribution of metal buildings. At all times material hereto, Kearney and Corrugated have been parties to a real estate transaction concerning certain real property located at 1920 U.S. Highway 301 in Tampa, Hillsborough County, Florida. The subject property consists of .82 acres of undeveloped land which is located in an area of rapid commercial and industrial growth. Under the Hillsborough County Zoning Code, the subject property is designated M-1, which authorizes commercial and industrial uses. Corrugated is the purchaser of the subject property, and proposes to establish an assembly and distribution center for pre-painted sheet metal buildings. Corrugated does not propose to engage in any activity which will generate industrial wastewaters of any kind, and in particular, will not generate wastes or wastewaters of a "hazardous" or "toxic" nature. No centralized public wastewater service has been available to this property, and septic tanks with drainfields are utilized by both adjacent properties for their domestic and other wastewater needs. Kearney and Corrugated have determined that the property in question is suitable for the intended uses in all other respects, including water, electricity, and transportation. In September, 1988, Kearney and corrugated sought approval from Respondent of a permit to install an onsite sewage disposal system (septic tank and drainfield) for the sole purpcse of providing toilet services to employees of the company. The site plan and preliminary construction drawings for the on- site system were reviewed by the Department of Environmental Regulation (DER) to determine whether the project posed unusual wastewater problems or relied upon inadequately designed facilities. The DER had no objection to the installation of the septic tank and drainfield to serve the proposed system because of the non-hazardous character of the business, and the absence of floor drains in the proposed work areas. The Hillsborough County Health Department, however, gave immediate verbal denial of a septic tank permit based solely upon the industrial zoning of the property, and set forth its denial, in writing, on October 14, 1988. Following the County Health Departnent's denial, Kearney and Corrugated, based upon consultation with Respondent's officials in Tallahassee, assembled additional information to provide further assurance that the site would not generate industrial or hazardous wastes which could be disposed of via the septic tank. They provided detailed descriptions of each process to be performed by Corrugated, in substantiation of its claim that no wastewaters would be generated at the site. They also obtained the agreement of the Hillsborough County Building Department to subject any future building permit applications at the site to particular wastewater scrutiny, in addition to formal deed restrictions which they proposed for the subject property. Notwithstanding these additional representations, the Environmental Health Director of the Hillsborough County Health Department continued to reject the application on the sole ground that the property was zoned for industrial uses. On October 14, 1988, Petitioners submitted an application for a variance to the Hillsborough County Health Department and the Respondent, accompanied by supporting material setting forth the regulatory history referred to above, as well as the written representations and assurances, including proposed deed restrictions, which they had previously tendered to the County Environmental Health Director. They appeared before the Variance Advisory Review Board on November 3, 1988, to substantiate the specific measures which they proposed in order to ensure that no toxic or hazardous substances would be introduced into the septic tank system. These proposals were received by the Advisory Board without objection, and members observed that Petitioners had done everything they could do to provide the comfort margin which the agency sought. However, denial of the variance was recommended based upon the failure of Hi1sborough County to adopt a local ordinance providing for future inspections or controls by local officials to prevent future toxic or hazardous wastes from being disposed into the on- site sewage disposal system. Without such a local ordinance, the Advisory Board members expressed the view that it did not matter what the applicant presented to the Board. On December 2, 1988, the Respondent formally informed the Petitioners, in writing, that their application for a variance had been disapproved. This denial had the effect of formally denying Petitioners' permit application. Thereupon, Petitioners timely sought review of this decision by filing a petition for formal administrative hearing.
Recommendation Based upon the foregoing, it is recommended that the Respondent issue a permit for an onsite sewage disposal system to the Petitioners. DONE AND ENTERED this 18th day of May, 1989 in Tallahassee, Florida. DONALD D. CONN Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 Filed with the Clerk of the Division of Administrative Hearings this 18th day of May, 1989. COPIES FURNISHED: Charles G. Stephens, Esquire Bayport Plaza - Suite 460 6200 Courtney Campbell Causeway Tampa, Florida 33607 Raymond Deckert, Esguire W. T. Edwards Facility 4000 W. Buffalo 5th Floor, Room 500 Tampa, Florida 33614 John Miller, General Counsel 1323 Winewood Blvd. Tallahassee, Florida 32399-0700 Gregory Coler, Secretary 1323 Winewood Blvd. Tallahassee, Florida 32399-0700 Sam Power, Clerk 1323 Winewood Blvd. Tallahassee, Florida 32399-0700 =================================================================
Findings Of Fact The Petitioner is the owner of real property located in Dixie County, Florida, more particularly described as Tract 10, Suwannee Shores Run Subdivision. The property is approximately one acre in size and was purchased in December of 1989. The subdivision is unrecorded, and there was no testimony regarding a platting date thereof. On January 17, 1990, the Petitioner made an application for an OSDS permit for the aforesaid property. The application was for a new single-family mobile home system. The residence involved will contain two bedrooms and a heated and cooled area of approximately 480 square feet, with an approximate 300-gallon-per-day sewage flow. Upon receiving the application, the Department's local public health official informed the Petitioner that he would have to obtain a benchmark elevation for the surface of his property and also establish the ten-year flood elevation for the property. The Petitioner, therefore, obtained the services of a registered land surveyor, who established a benchmark elevation for the subject property of 19.23 feet above mean sea level ("MSL"). The mark is actually 6 inches above ground level. The actual elevation of the surface grade of the property at the proposed septic tank system installation site is 19 feet above MSL. The ground water level at the time of the evaluation of the site by the Department's personnel was 66 inches below the surface of the lot. The wet season ground water or water table level is 60 inches below the surface of the lot. The property is characterized by slight to moderate limited soils, consisting of fine sand from 6 inches depth down to 60 inches depth. The first 6 inches of soil near the surface of the property is organic in nature. The information, contained in a report promulgated by the Suwannee River Water Management District and submitted to the Department by the Petitioner with the permit application, shows that the ten-year flood elevation for the property in question is 23 feet above MSL. That ten-year flood elevation was not refuted. The property, thus, is located within the ten-year flood plain of the Suwannee River; and it is also located within the "regulatory floodway". There is not a central water system available to the property, and potable water for the subject dwelling will come from a well. In addition to lying beneath the ten-year flood elevation, the property lies within the regulatory floodway of the Suwannee River, as mentioned above. This means that if a mounded septic tank and drain-field system were installed, (which would likely result in appropriate treatment of the sewage effluent because of site conditions referenced herein); in order to install such a system, to raise the drain fields above the ten-year flood elevation, a certification by a registered engineer would have to be performed to establish that the installation of the required volume of fill dirt for the mounded system would not cause an elevation of the "base flood". No such engineering testimony or evidence was offered in this proceeding, however. Thus, this portion of Rule 10-6.047(6), Florida Administrative Code, has not been complied with. The OSDS could appropriately be installed from an environmental standpoint, given the depth of appropriate moderate to slightly limited soils prevailing at the site and the depth of the water table. The estimated wet season water table is 60 inches below the existing surface grade, and the normal water table is 66 inches below the surface grade. Although organic soil prevails for the first 6 inches at the site; below the first 6 inches, the soils are characterized as being fine sand. This soil type and condition, as well as the depth of the water table below the location of the drain field and septic tank site establishes that installation and operation of an OSDS in this location would likely be successful. Since the property and the installation site are beneath the ten-year flood elevation, however, a mounded system would have to be installed to raise the bottom of the drain-field trenches or absorption beds above that ten-year flood elevation referenced above. Thus, although a mounded system would appear to be feasible, the appropriate engineering testimony, with regard to its presence in the regulatory floodway, was not offered. Thus, the grant of the permit based upon mounding of the system as a reasonable alternative approach to successful treatment and disposal of the effluent in question has not been established. The Respondent, by letter of April 24, 1990, advised the Petitioner of the denial of the OSDS permit and also advised the Petitioner that he should pursue a formal administrative proceeding before the Division of Administrative Hearings, rather than file an informal variance application before the Respondent's own variance board. The Respondent took the position that a variance could not be granted from the requirements of Rule 10D-6.047(6), Florida Administrative Code, because the property was located within the ten- year flood elevation of the Suwannee River and because of the Respondent's interpretation of the effect of the Governor's Executive Order No. 90-14, which adopted by reference the Suwannee River Task Force recommendation that all such OSDS's be prohibited within the ten-year flood elevation. The Respondent thus declined to exercise its discretion, accorded it in the statute and rules cited hereinbelow, to entertain and consider a variance application. It was established that the lot in question is not subject to frequent flooding. However, because the surface grade is beneath the ten-year flood elevation, the bottom of the drain-field trenches or absorption beds would also be beneath the ten-year flood elevation, although the property is amenable to the installation of an effective OSDS otherwise because of the depth of the wet season water table and the types of soil prevailing at the site. The Petitioner established a hardship due to the fact that he has paid a substantial sum of money for the property and now is unable to develop it unless entitlement to an OSDS or some reasonable alternative is gained. No substantial proof of a truly-effective, reasonable alternative method of treating the effluent in question was established by the Petitioner. The Petitioner did establish, however, that a mounded system could be made to successfully operate, treat and dispose of the sewage effluent. A mounded system, however, would necessitate the required engineering certification and calculations before installation. No such effort has been made with appropriate engineering personnel and no evidence of such was adduced in this proceeding. The Petitioner has also raised the possibility that an aerobic septic tank and drain-field system might be an effective alternative treatment and disposal method for the property in question. An aerobic system involves the injection of air into the attendant septic tank to support aerobic bacteria, which break down and treat sewage at a faster, more effective rate than does the normal, anaerobic bacteria-based system. The resulting effluent is substantially lower in BOD and suspended solids than is the effluent from the normal, subterranean anaerobic septic tank and drain-field disposal system. The problem with such an aerobic system is that it involves mechanical equipment, especially an external electric motor and pump to force air into the system. This is disadvantageous in that if the equipment suffers a malfunction, the high level of treatment and disposal of the effluent is retarded. When the electric motor and/or pump malfunction and air is no longer injected into the septic tank to support the more active aerobic treatment bacteria, the system then ceases functioning as an aerobic system and becomes a simple anaerobic system using less effective anaerobic bacteria. In other words, it functions as a normal septic tank and drain-field system. If it has been installed in an area with marginal or deficient natural treatment conditions, such as inappropriate soils, high-water tables, or low surface elevations, beneath the ten-year flood elevation, for instance; the sewage, which is no longer being treated aerobically, can pose a threat to public health and the quality of the ground or surface waters involved at the site. The untreated or inadequately-treated sewage can rise to the surface of the property, back up in the residential toilets, or otherwise pollute ground or surface waters, if water table levels are too high. Thus, such systems would require inspection periodically to insure that they are in adequate working order, because if the mechanical system malfunctions, the system will continue to put effluent through its drain field, like a normal septic tank drain-field system, but without adequate treatment for a "low elevation" site such as this. In that circumstance, the occupants of the dwelling involved might not notice for long periods of time that the system is inoperative because it can continue to dispose of the effluent without it backing up into the residence. Accordingly, when the motor and air pump system becomes inoperative, there is less incentive for the owner to repair it. Thus, it is likely that if such a system were installed, some means would have to be found to insure that the owner keeps the system in good repair and working order. The means by which such an arrangement for insuring that an aerobic system operates properly at all times was not established in this record, however. The Department does not have the regulatory authority at the present time to conduct such periodic inspections nor the personnel or funds to do so. Consequently, the Petitioner failed to establish that reasonable alternatives to the proposed conventional OSDS exist.
Recommendation Having considered the foregoing Findings of Fact, Conclusions of Law, the evidence of record, the candor and demeanor of the witnesses, and the pleadings and arguments of the parties, it is therefore, RECOMMENDED that a Final Order be entered denying the Petitioner's application for an OSDS permit. DONE AND ENTERED this 27th day of February, 1991, in Tallahassee, Leon County, Florida. P. MICHAEL RUFF Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, FL 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 28th day of February, 1991. APPENDIX TO RECOMMENDED ORDER Petitioner's Proposed Findings of Fact Accepted. Accepted, but irrelevant. Rejected, as immaterial. Rejected, as immaterial. Rejected, as immaterial and irrelevant. This is not a rule challenge proceeding, pursuant to Section 120.56, Florida Statutes. Rejected, as subordinate to the Hearing Officer's findings of fact on this subject matter. 7-11. Accepted. Respondent's Proposed Findings of Fact 1-10. Accepted. COPIES FURNISHED: Sam Power, Agency Clerk Department of HRS 1323 Winewood Boulevard Tallahassee, FL 32399-0700 Linda K. Harris, Esq. General Counsel Department of HRS 1323 Winewood Boulevard Tallahassee, FL 32399-0700 Richard Remington 165 Forest View Drive Land O'Lakes, FL 34638 Frances S. Childers, Esq. Department of HRS 1000 N.E. 16th Avenue Gainesville, FL 32609
The Issue Whether the Petitioner's request for variance should be granted.
Findings Of Fact Petitioner owns a parcel of land in Palm Beach, County on which is housed Petitioner's paving and landscapping business and which is zoned for industrial use. Petitioner intends to install a manufactured building for use as an office. To provide sewage treatment for the bathroom of the office, Petitioner had a septic tank designed and applied for a septic tank permit which was denied as was its variance request. As a result of a complaint, Petitioner was inspected in August, 1988, by the Palm Beach County Department of Environmental Resources Management and by the Florida Department of Environmental Regulation. Both inspections yielded citiations for soil contamination by oil and other hazardous waste. Petitioner represented that most of the infractions had been rectified by the date of the hearing in this matter and pledged full cooperation with the County and State rules. To oversee the operation of the business and assure that no further problems arose, Petitioner decided to establish its office on site. The closest sewage treatment plant is at full capacity and does not intend to provide service to the parcel in the near future. The adjoining properties are serviced by septic tanks. As such, the proof did not demonstrate that alternative methods of waste disposal were available to the site However, as part of its business operation, Petitioner does minor repair of its equipment on site and may include oil changes and other such services. Although Petitioner does not intend to pollute the groundwater and intends to use the proposed septic tank for office use only, the proof demonstrated that waste disposal into a septic tank from the maintenance and repair of its equipment could result in the disposition of prohibited hazardous waste into the groundwater. Further, the proof failed to demonstrate that the septic tank would be protected from use by those who handled the hazardous waste. Although the hardship, if any, caused by the denial of the variance was not caused by Petitioner and the proof failed to demonstrate reasonable alternatives of waste disposal, the potential for an adverse affect of the operation to the groundwater is great. Additionally, the proof failed to establish the ameliorating conditions of soil, water table or setback conditions or whether the property was platted prior to 1972. Accordingly, the denial of the variance was proper.
Recommendation Based on the foregoing findings of fact and conclusions of law, it is RECOMMENDED that a final order be entered denying the variance. DONE AND ENTERED in Tallahassee, Leon County, Florida, this 6th day of July 1989. JANE C. HAYMAN Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 6th day of July 1989. COPIES FURNISHED: Hattie Parker 160 Toneypenna Drive Jupiter, Florida 33468 Peggy G. Miller, Esquire Department of Health and Rehabilitative Services 111 Georgia Avenue Third Floor West Palm Beach, Florida 33401 Sam Power, Clerk Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700 Gregory L. Coler, Secretary Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700 John Miller General Counsel Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700
Findings Of Fact This proceeding concerns an application for authority to construct and operate a 20-acre Class I, Class III, and an asbestos municipal solid waste landfill, as well as to close an existing 25.5-acre Class I municipal solid waste landfill located in Holmes County, Florida. This facility would function as a new regional landfill, in part, to replace the existing landfill in Holmes County. The applicant, EPAI, is a Florida corporation formed for the purpose of constructing and operating the proposed facility. EPAI has an option to purchase the site involved from its present owner, which will be accomplished after the facility is permitted, if it is, and all necessary permits for construction and operation have been obtained, then the applicant will sell stock in its corporation to City Management Corporation (City) domiciled in Detroit, Michigan. EPAI will then continue to exist as a wholly-owned subsidiary of City and will proceed to construct and operate the new landfill and initiate and complete all closure operations for the existing landfill. The Department of Environmental Regulation is an agency of the State of Florida subject to the provisions of Chapter 120, Florida Statutes, and charged with enforcing the provisions of Chapter 403, Florida Statutes, and Chapter 17- 701, FAC, as pertinent to this proceeding. It is thus charged with regulating solid waste management facilities, including permitting their construction, operation, and closure. It is charged with reviewing applications for such projects and issuing permits therefor if the statutes and rules it is charged with enforcing are found to have been complied with by a permit applicant. It has performed that function in this case up until the point that jurisdiction of the permit application dispute engendered by the filing of the subject petition resulted in transfer of the matter to the Division of Administrative Hearings. The Petitioner, CVA, is a group of Holmes County citizens opposing issuance of the landfill permit at issue. Based upon rulings on the motions to dismiss and extant law, CVA was required to present proof of its standing at the final hearing held in this cause. CVA called two witnesses, neither of whom presented evidence relevant to the issue of standing. CVA did not present any evidence, either through testimony or exhibits, to identify its members, to establish that a substantial number of its members would be affected by the issuance of the permit and the construction and operation of the landfill nor evidence which would identify members whose substantial interests will be affected by the construction and operation in a way different from any effect on the interests of the public at large. Project Background Holmes County currently leases a site on which its existing landfill is located. The site consists of 84 acres owned by Stone Container Corporation, the successor in interest to International Paper Company. The existing landfill itself covers approximately 25.5 acres. The proposed facility to be located on the same tract would serve as a new regional landfill to meet the solid waste disposal needs of Holmes County, as well as surrounding counties. The proposed facility would consist of approximately 20 acres divided into Class I, Class III, and asbestos landfill facilities. The project will be located on To Shoo Fly Bridge Road, lying approximately 3.3 miles northwest of the City of Bonifay in Holmes County. The northern portion of the present landfill is an unlined cell operated by the county which began receiving waste in 1979 and ceased depositing waste sometime in 1987. The southside cell of the landfill is clay lined with a leachate collection system. That portion of the county facility ceased accepting waste sometime in 1990. Holmes County is unable to properly operate or to close the existing landfill. Consequently, in June of 1989, the county and the Department entered into a consent order whereby the county agreed to meet certain operational, groundwater monitoring, landfill cell design, administrative and other requirements within certain time periods. The county attempted to meet the terms of that consent order but was unable to do so, primarily for financial reasons. In 1990, the county applied to the Department for a permit to close the existing landfill in accordance with the pertinent provisions of Chapter 403, Florida Statutes, and Chapter 17-7, FAC. The closure permit application was denied by Department order of May 22, 1991. Waste disposal at the Holmes County landfill had ceased in 1990, but it has not been properly closed pursuant to law and Department rules. Currently, it only has a temporary cover of soil and seeded grass in order to stabilize its slopes on the portion of the landfill commonly known as the "highrise". The closure costs for the existing landfill were estimated at approximately $700,000.00, which is beyond the resources of the county. Residents of unincorporated Holmes County currently are disposing of their solid waste by hauling it to the regional landfill in Campbellton in Jackson County nearby or by dumping it in unauthorized disposal areas, such as streams or roadsides. The City of Bonifay disposes its solid waste in the Campbellton landfill, as well. The Campbellton landfill, however, does not accept several solid waste components, such as yard trash. Since the county was unable to obtain the necessary permits to either operate or to close the existing landfill and was unable to meet State-mandated solid waste disposal and recycling requirements, it entered into an agreement with EPAI in May of 1990, whereby that entity assumed financial and legal responsibility for closure of the existing landfill, including obtaining the necessary permits from DER to close it, upon issuance of DER permits necessary to construct and operate a new Class I, Class III, and asbestos landfill at the same general site. The May 21, 1990 agreement between EPAI and the county authorized EPAI to so proceed before DER. Once EPAI obtained the permits necessary, the agreement provided that the county would surrender all right, title and interest in the 84-acre site to EPAI, convey all structures, equipment and appurtenances theretofore used by the county for its landfill operation to the corporation and to assign EPAI any legally assignable benefits which the county would receive under the 1988 Solid Waste Management Act, including recycling grants, if applicable. EPAI, the applicant, has an option to purchase the 84-acre site from Stone Container Corporation. After the issuance of any permits for closure and for construction and operation of the new facilities, the option would be exercised and the property would be conveyed by Stone Container Corporation to EPAI. Once it has purchased that property and the county has abandoned its lease on the property, pursuant to the May 21, 1990 agreement, EPAI would then hold fee title ownership and possession rights to the site. Once it obtained the necessary permits for construction and operation of the new landfill, EPAI will sell its stock to City. EPAI would then continue to exist as a wholly- owned subsidiary of City and will construct and operate the new landfill and close the existing landfill. City is a wholly-integrated waste management corporation based in Detroit, Michigan. It has been operating in the solid waste management field since 1961 and has extensive experience in landfill construction, operation and closure. It operates seven regional landfills, approximately ten transfer stations, and 30-40 residential and commercial solid waste collection companies in Michigan. It also operates hazardous waste facilities in Michigan and in Tampa, Florida. Through construction and operation of its regional landfill and hazardous waste facilities, it is familiar with and accustomed to compliance with all pertinent state and federal regulations applicable to such facilities. City holds a DER permit for its hazardous waste facility in the Tampa, Florida, area and has had a history of no major violations of applicable laws and rules. The corporation was shown to be financially sound. EPAI will operate the proposed facility, should it be permitted, as a regional landfill serving neighboring counties between Okaloosa and Jackson Counties, south to the Gulf of Mexico, and north to the Alabama border. The economic feasibility, however, was not shown to depend on interstate transport or disposal of out-of-state wastes in the landfill. Section 17-701.030, FAC, sets forth the permit submittal requirements for solid waste management facilities. CVA stipulated that EPAI met all applicable permit application submittal requirements in this section, except those in Sections 17-701.030(5)(h) & (i) and 17-701.030(7), FAC. EPAI has an option to purchase the landfill site from Stone Container Corporation, the current owner. EPAI has met the ownership requirement in Section 17-701.030(5)(h), FAC. The applicant will establish an escrow account to insure financial responsibility for closing and long-term care and maintenance of the landfill. A specific condition has been agreed to be placed in the permit requiring the applicant to submit written proof of having established financial assurance for closure and long-term care of the entire site 60 days prior to the acceptance of any solid waste at the facility and within 30 days after permit issuance for operations at the existing landfill. City has the financial ability to establish the escrow account and to provide the necessary financial assurance within 30 days after permit issuance. The applicant has thus satisfied the requirements of 17-701.030(5)(i), FAC, with regard to financial responsibility. Section 17-701.030(7), FAC, requires DER to forward a copy of the permit application to the Water Management District within seven days of receipt of the application. The Water Management District would then prepare an advisory report for DER on the landfill's potential impact on water resources with recommendations regarding disposition of the application. The Department sent the application to the Northwest Florida Water Management District, but the District did not prepare an advisory report. The administrator for the waste management program for the Department's northwest district office, who oversees solid waste facility permitting, testified that, as a matter of course, the District does not prepare an advisory report. Moreover, because the reports are advisory only, DER is not required to respond to any comments or follow any recommendations which may be made by the District in such a report. The Department normally issues solid waste facility permits as a matter of policy without having received a water management district report. 1/ Location and Site Requirements An aerial photograph of this area was prepared, as required by Section 17-701.050(4)(a), FAC. It shows the land uses, zoning, dwellings, wells, roads, and other significant features within one mile of the proposed landfill. This map shows several dwellings located within a mile of the site. The closest dwelling, as determined by aerial photograph and performance of a "windshield" survey, is approximately 2,400 feet from the site. The closest potable water well is at the dwelling located approximately 2,400 feet from the site. There are no existing or approved shallow wells within 500 feet of the proposed waste disposal areas at the landfill. Accordingly, the proposed landfill satisfies the condition in Section 17-701.040(2)(c), FAC, that solid waste not be disposed of within 500 feet of an existing or approved shallow water well. The surficial aquifer is located approximately 30 feet from the ground surface at the landfill site. The sediments in the area in which waste is to be disposed of consists of layers of clay and sandy clay having a very low vertical conductivity. The waste disposal cells will not be excavated down to the surficial aquifer. Therefore, waste will not be disposed of in ground water. Waste will not be disposed of in a sinkhole or in a limestone or gravel pit, as prohibited by Sections 17-701.030(2)(a) and 17-701.040(2)(b), FAC. The 100-year flood zone is located at approximately 120 feet national geodetic vertical datum (NGVD). The proposed landfill will be located at approximately 125 feet NGVD elevation and within a perimeter berm system. Therefore, waste will not be disposed of in an area subject to periodic and frequent flooding, as prohibited by Section 17-701.040(2)(e), FAC. The waste disposal areas are over 200 feet from Long Round Bay, the closest water body. Therefore, the 200-foot setback requirement is met. See, Section 17-701.040(2)(g), FAC. To Shoo Fly Bridge Road, on which the landfill is located, is not a major thoroughfare. There are no other major thoroughfares in the vicinity from which the landfill is visible. Accordingly, waste will not be disposed of in an area open to public view from a major thoroughfare. See, Section 17- 701.040(2)(h), FAC. The landfill site is not located on the right-of-way of a public highway, road or alley, and is not located within the bounds of any airport property. The landfill will not be located within a prohibited distance from airports, as proscribed by Section 17-701.040(2)(k), FAC. See also, Sections 17-701.040(2)(j) and (2)(i), FAC. There are no Class I surface waters within 3,000 feet of the landfill site so the setback provisions in Section 17-701.040(7), FAC, are satisfied. No lead-acid batteries, used oil, yard trash, white goods, or whole waste tires will be accepted at the Class I landfill cell. Only trash and yard trash will be accepted at the Class III cell. Therefore, the prohibitions in Section 17- 701.040(8), FAC, are not violated. A ground water monitoring plan has been developed for the landfill site, pursuant to Section 17-28.700(6), FAC, as required by Section 17- 701.050(3)(a), FAC. The original ground water monitoring plan was prepared by Post, Buckley, Schuh, and Jernigan, Inc. and submitted as part of the initial permit application. This plan addresses monitoring well placement, monitoring, and monitoring plan requirements. It proposes corrective action, as required by Section 17-28.700(6), FAC. Subsequent modifications to that plan were developed by Dr. Thomas Herbert, an expert in geology, hydrogeology, well installation and water quality monitoring. These modifications particularly address monitoring well location and provide additional assurances that the ground water monitoring plan complies with Section 17-28.700(6), FAC. These proposed modifications were submitted to DER prior to hearing. A site foundation analysis using appropriate ASTM methods to determine stability for disposal of waste, cover material, and structures constructed on site was performed and the results were submitted to DER as part of the initial application. Additional foundation stability information and the results of another field investigation regarding sinkhole development potential at the site was submitted to the Department. The field investigations and reports in evidence provide assurance that the disposal site location will provide adequate support for the landfill, as required by Section 17-701.050(3)(b), FAC. The landfill site is easily accessible by collection vehicles and other types of vehicles required to use the site. The site design provides for all weather roadways to be located throughout the site for ready ingress, egress, and movement around the site. The proposed landfill is located to safeguard against water pollution originating from disposal of solid waste. See Section 17-701.050(3)(c)2., FAC. The bottom of the waste disposal cells will be located at least six feet above the top of the surficial aquifer. To ensure that ground water is not polluted by waste disposal, the Class I cell will be lined with a composite liner system comprised of a lower unit consisting of 24 inches of compacted clay having a maximum permeability of 1 X 10-7 centimeters per second, and an upper synthetic liner unit consisting of a high density polyethylene (HDPE) of 80 mil thickness. Leachate generated by the waste in the landfill will be collected by a leachate collection and removal system. The leachate control system consists of a two- foot thick layer of sand having a minimum permeability of 1 X 10-3 centimeters per second, with a permeable geotextile filter cloth layer and a highly permeable geonet layer to collect and direct the leachate into a drainage system consisting of a collection pipe system to transfer the leachate to a containment lagoon. Once in the leachate lagoon, the leachate will be evaporated, recirculated over the working face of the landfill, or transported off site for treatment at a waste water treatment plant. The waste disposal areas are located at approximately 125 foot NGVD elevation. This is well above the 100- year flood plain and they are not located in water bodies or wetlands. An adequate quantity of acceptable earth cover is available on site. See, Section 17-701.050(3)(c)3., FAC. The soil for cover will be obtained from the northeast portion of the site located across To Shoo Fly Bridge Road from the landfill site. The landfill site was shown to conform to proper zoning, as required by Section 17-701.050(3)(c)4., FAC. The 1991 Comprehensive Plan Future Land Use Element for Holmes County designates this site for "public/semi- public/educational" land uses. The "public facilities land uses" designation includes "utilities and other service facilities" of which municipal solid waste landfills are an example. No other land use designation in the Holmes County 1991 Comprehensive Plan expressly includes landfill uses. CVA adduced testimony from Hilton Meadows, its expert witness, as to plant species he observed in the vicinity of the site. He observed plants that he identified as being species that grow on the edge of or in wetlands, but none of these species were shown to exist on the landfill site itself. Mr. Meadows observed them in locations outside the perimeter berms of the landfill site but did not identify their specific locations other than a general direction from the perimeter berms outside of which he observed the plants. He did not quantify the wetland species he observed so as to establish their dominance and did not conduct a jurisdictional wetland survey, as envisioned by Chapter 17- 301, FAC. Landfill Design Requirements As required by Section 17-701.050(4)(a), FAC, an aerial photograph was submitted with the permit drawings. Plot plans were submitted with the permit application, in evidence as EPAI exhibit 1, showing dimensions of the site, location of soil borings, proposed trenching or disposal areas, original elevations, proposed final contours, and previously-filled waste disposal areas. Topographic maps were also submitted with the correct scale and contour intervals required by Section 17-701.050(4)(c), FAC, which show numerous details such as proposed fill areas, borrow areas, access roads, grading, and other details of the design and the site. The design plans also include a report on the current and projected population for the area, the geographic area to be served by the landfill, the anticipated type, quantity and source of the solid waste, the anticipated useful life of the site, and the source and characteristics of cover materials. The landfill will be a regional facility serving the residents of Holmes and surrounding counties. The current population of the area to be served is approximately 63,183 with the projected population for the year 2000 being 76,792. The landfill will receive municipal sanitary solid waste, asbestos, petroleum-contaminated soils, and yard trash. It will not receive used oil, lead-acid batteries, biomedical wastes, hazardous wastes, or septic sludge. The permit application was shown to satisfy all design requirements of Section 17-701.050(4), FAC. Geology, Hydrogeology, and Foundation Stability Dr. Thomas Herbert, a registered professional geologist and licensed well driller in Florida testified of geologic and hydrogeologic investigations and analyses he performed. Mr. Herbert has over 25 years experience in the fields of geology and hydrogeology and was tendered and accepted as an expert in those fields. Dr. Herbert drilled shallow and deep core borings, which were converted into monitor wells to monitor ground water in the surficial and deep aquifers under the landfill site. In addition, he drilled several medium-depth borings along the western boundary of the site to analyze geologic and hydrogeologic conditions in this area, which is the portion of the site closest to Long Round Bay. Dr. Herbert used a hollow stem auger to take the soil borings and install the monitoring wells. This is a device which allows sampling tools to be placed down a hollow drill barrel for more accurate sediment sampling. Dr. Herbert used a continuous sampling system wherein a five-foot core barrel sampled the soil conditions ahead of the turning drill auger. Continuous sampling is preferable to other types of soil sampling equipment because it provides a detailed representative sample of the soil on the site and enables the sampler to precisely determine whether soil materials occur in small thin layers or bands on the site or whether there is a massive deposit of relatively uniform soils. The continuous sampling method also minimizes mixing of soils and creates an undisturbed profile that can be examined once the core barrel is opened. This type of sampling yields a very accurate picture of soil conditions on the site. In addition to the borings taken on the site by Dr. Herbert, other core borings were taken on site by Ardaman & Associates, a geotechnical engineering firm, for the purpose of analyzing the site foundation to determine the site's stability and potential for developing sinkholes. These core boring profiles were analyzed, along with those performed by Dr. Herbert, in determining the site geologic and hydrogeologic conditions. In addition to the core borings, Dr. Herbert reviewed studies on the geology and hydrogeology of the area, as well as the field investigations reported by Post, Buckley, Schuh, and Jernigan, as part of the original permit application submittal. In order to gather additional information on the geology and hydrogeology of the site, gamma ray logging was performed on the wells installed by Dr. Herbert, as well as on the existing wells at the site. Gamma ray logging measures natural gamma radiation from the sediments and permits identification of soil type based on the amount of gamma radiation coming through the soils. Generally, the higher the clay content, the higher the gamma ray count. Gamma ray logging provides an accurate means for determining clay, sand, or sandy clay soils. By examining gamma ray logs of wells he installed and sampled, as well as for wells already existing on the site, Dr. Herbert was able to obtain extensive information about the subsurface soil conditions at the site. Based on these information sources, the geology of the site was determined. The sediments ranging from the surface of the site down to more than 100 feet below the surface are part of the citronelle formation, which consists of consolidated to partially cemented sand, silt, and clay sediments, called clastics, deposited in the Plio-Pleistocene age, between one and four million years ago. The citronelle formation at the site is predominantly clay, with some thin sand lenses running through the clays. The sand lenses or "stringers" grade laterally into the clays or silts. A surficial aquifer is located between 30 and 40 feet below the land surface at the site and is confined immediately above and below by dense, dry clay layers. The top confining unit is estimated to be approximately 10 feet thick. The lower clay confining unit, down to approximately 100 feet below the land surface, consists of dense, dry clays with thin units of sandy or silty clays or clayey sands. Below the citronelle foundation, at approximately 100 feet below land surface, there is a sequence of weathered carbonate rock or mud, termed "residuum". This material is too fine-grained to yield water in usable quantities. Competent limestone is first encountered below the carbonate "residuum" at approximately 262 feet below the surface. This limestone is likely part of the lisbon- tallahatta formation, which is part of the Claiborne Aquifer. In order to investigate an area in the western portion of the site depicted in the Post, Buckley report as being sandy, Dr. Herbert installed a deep core boring and analyzed the soils in that area. He thus determined that rather than being solid sand, as depicted in the Post, Buckley report, the sediments in this area are actually sands interbedded with clay and silt stringers, which decrease the sediments' horizontal and vertical conductivity. He determined that the area is a sandy channel bounded laterally and below by dense clays. As with the rest of the site, the surficial aquifer also is confined in this area. As part of his ground water monitoring plan recommendations, Dr. Herbert recommended installation of an additional monitor well in this area. The core borings and gamma ray logging allowed accurate determination of the site hydrogeology. Transient surface water, termed "vadose" water, percolates down from the land surface through layers of clay, sand, and silt. Within these sediment layers, there are lenses of clay ranging from a few inches to a foot thick. Vadose water is trapped on top of the clay layers, creating shallow saturated zones called "perched" zones, ranging from one to a few inches thick. The vadose water and perched zones are not connected to any ground water systems. Below these perched zones, dense, dry clay layers create a confining layer above the surficial aquifer. The surficial aquifer occurs in discontinuous sandy layers 30 to 40 feet below the land surface. Beneath the surficial aquifer, dense, dry clay layers form a lower confining unit. These confining clay layers overlying and underlying the surficial aquifer create pressure or hydraulic "head", on the water in the surficial aquifer. When a core boring or well penetrates through the upper clay confining layer, the water in the surficial aquifer rises up the well or core casing, due to the hydraulic head, to a level called the potentiometric surface, which is at a higher elevation than the elevation at which the surficial acquifer is actually located. Based on the confined nature of the surficial aquifer, it was determined that water table elevations reported in the hydrogeologic report initially submitted as part of the application are actually potentiometric surface elevations. This is consistent with the information provided in the additional information submittal as part of the permit application which indicates that the potentiometric surface at the landfill site may be five to seven feet below the bottom of the liner. This was confirmed at hearing by Mike Markey, a professional geologist with the Department, who reviewed the permit application and hydrogeologic report submitted by Dr. Herbert and prepared a memorandum dated September 2, 1992, stating that his "previous concern regarding separation of the 'water table' aquifer and HDPE liner is no longer an issue because the 'water table' aquifer was not found" by Dr. Herbert. The surficial aquifer on the landfill site cannot yield enough water to support long-term use as a potable water source. Due to the high clay content in the aquifer, the water has a high sediment content and low water quality, rendering it unusable for domestic purposes. The overall horizontal conductivity for the surficial aquifer on a site-wide basis is estimated to be low due to the discontinuous sand layers comprising the surficial aquifer on the site. While some zones within the aquifer may have high horizontal conductivity, these zones have limited lateral extent and change rapidly into zones of low horizontal conductivity. The steep hydraulic gradient from the highest to lowest areas of the site further indicates that the surficial aquifer has low horizontal conductivity. If water were rapidly moving through the surficial aquifer across the site, the hydraulic gradient would be much less steep. The presence of the hydraulic gradient across the site indicates that the clay in the surficial aquifer system is so pervasive that the water in that system essentially is stagnant. Based upon his extensive experience and familiarity with the clastic sediments like those found at the landfill site, Dr. Herbert estimated the vertical permeability of the sediments comprising the upper and lower confining layers of the surficial aquifer to be in the range of 1 X 10-6 to 1 X 10-8 centimeters per second. These projected permeability values are very low, thus, very little water is moving vertically through the surficial aquifer to deeper depths. The original hydrogeology report on the site submitted as part of the application indicated that the ground water flow is to the west, southwest, and northwest based upon monitoring well and piezometric data. Dr. Herbert's subsequent field investigations confirmed the ground water flow direction as reported in the permit application. Dr. Herbert estimated that the surficial aquifer will be located between 8 and 15 feet below the finished bottom elevation of the Class I waste disposal cell. The intermediate aquifer system is located beginning 80 or 90 feet below the landfill site and is defined as all strata that lie between and retard the exchange of water between the surficial aquifer and the underlying Floridan aquifer, including the lower clay confining unit directly underlying the surficial aquifer. In this part of west Florida, the intermediate system is estimated to be 50 to 60 feet thick and acts as an "aquatard", which means that it retards the passage of water from the surficial aquifer to lower levels. The standard penetration test (SPT), which is an engineering test of soil density, yielded values of 40 to 50 blows per inch for soils sampled in the top 20 feet of the intermediate system throughout the site. These SPT values indicate the soils in the intermediate system are extremely dense, over-compacted clay materials. Below the clays, the lower portion of the intermediate system consists of a weathered limestone residuum. Due to the extremely fine grain size of the residuum, it will not yield water in quantities sufficient to support a well. The deep core borings taken at the site indicate that the Floridan aquifer limestone underlying the landfill site has undergone paleokarst evolution. The underlying limestone has been dissolved away over a long period of time, creating the limestone residuum detected in the deep core borings. Based on the deep core borings taken at the site, Dr. Herbert concluded there is no competent Floridan aquifer limestone capable of supporting wells underlying the landfill site, and the Floridan aquifer either is not present under the site or exists only as a relict or remnant of the limestone formations that make up the Floridan aquifer system in other parts of Florida. The core borings taken on site indicate that the paleokarst terrain underlying the landfill contains no cavities, large openings, sinkholes or other features in the rock that could cause the landfill foundation to collapse. All karst features in this area are filled in and "healed" by the carbonate residuum overlying the limestone under the landfill. Dr. Herbert also investigated the geologic nature of Long Round Bay. In addition to reviewing literature regarding the geology of west Florida in the vicinity of Holmes County and topographic maps depicting the site, Dr. Herbert took at least one sediment core boring in Long Round Bay and also circumnavigated the perimeter of the Bay. Based on information from these sources, Dr. Herbert opined that Long Round Bay, like many other drainage basins in the area north of Bonifay, is a collapse feature of the paleokarst sequence in the vicinity, and is a topographic depression caused by weathering away of the limestone over time. The sediments underlying Long Round Bay consist of deep citronelle clays washed into the collapse feature. Long Round Bay is relatively flat with poorly defined outlets and receives surface drainage from the surrounding area. Because there are no defined channels connecting Long Round Bay to Wright's Creek, water movement from Long Round Bay into Wright's Creek is extremely slow. Long Round Bay is likely not an aquifer recharge area because there is no direct karst connection between Long Round Bay and any aquifer. Clays have run off the surrounding area and accumulated in Long Round Bay for thousands of years sealing off any connections between it and any underlying aquifer. In addition to Dr. Herbert's determination of the potential for active karst formation under the landfill site, Ardaman & Associates performed the foundation analysis of the site, as required by Section 17-701.050(3)(b), FAC. The foundation analysis was supervised by William Jordan, a registered professional engineer. He has an extensive education in geotechnical engineering, as well as 11 years of experience in that field. He was tendered and accepted as an expert in geotechnical engineering and materials testing. As part of the foundation analysis, Ardaman & Associates performed two deep core borings to determine the potential for development of sinkholes at the site. Both borings were taken on the western side of the landfill site, closest to Long Round Bay. One of the borings was performed in an area having a relatively high sand content in the soil, as identified in the hydrogeology report submitted in the permit application. The borings were drilled down to approximately 160 feet below the surface, to the top of the weathered limestone horizon. In Mr. Jordan's extensive experience in foundation testing and analysis, presence or potential for sinkhole development is usually evident at the horizon of the limestone or within the top 15 feet of the limestone. The core borings did not reveal any joints, open seams, cavities, or very loose or soft zones at the horizon or on top of the limestone. In addition, the sediments overlying the limestone horizon were determined to consist of medium dense to dense and medium stiff to stiff sediments, which indicate lack of sinkhole activity or potential. No indication of active or imminent sinkhole conditions were found on the site, either through the core borings or from surficial observation. In addition to the deep core borings, Ardaman & Associates, under Mr. Jordan's supervision, also performed four other core borings to a depth of 60 feet below the land surface. These borings indicated the sediments at the site are composed of clayey sands, very clayey sands, "lean" sandy clays, and sandy "fat" clays. The SPT tests performed on the soils indicate the site soils range from medium to high density and are stiff to very stiff and hard. Mr. Jordan performed a settlement analysis of the landfill based on the types of sediments present on site and assuming a compacted unit weight of 37 pounds per cubic foot for the landfill waste. This unit weight is a typical weight value for compacted municipal waste. For settlement analysis, Mr. Jordan used the SMRF elastic compression and consolidation methods, both of which are professionally accepted standard methods for determining settlement of large structures, including landfills. Using these methods, he determined that the total settlement for the landfill over its total life would be between three and five and one-half inches. Based on the uniformity of the subsurface conditions and density of the soils on the site, any settlement would be uniform and thus would not result in tearing or other failure of the landfill liner. Mr. Jordan performed a bearing capacity analysis of the site. Based on the sediments on site, he estimated the safety factor against bearing capacity to be in excess of 10. The minimum acceptable safety factor for large habitable structures, such as buildings, is in the neighborhood of two to three. Thus, the safety factor determined for the landfill site far exceeds the minimum standard for bearing capacity. Mr. Jordan performed an embankment slope stability analysis for the perimeter berm of the landfill. The inside slope of the perimeter berm has a 3:1 slope and the outside slope has a 4:1 slope. Mr. Jordan's stability analysis was performed on the inside slope of the berm which is steeper and, therefore, less stable. Due to the stability of the clay sediments composing the subgrade of the perimeter berm, and based on his extensive experience in slope stability analysis, Mr. Jordan determined there is no danger of deep circular arc failure of the landfill berm. He used a professionally accepted standard slope stability evaluation method called the "infinite slope" method, to analyze the probability for shallow circular arc failure of the berm. He determined a safety factor of 2.0 to 2.4 for the embankment slope, which is between 1.5 and 2.0 times greater than the minimum accepted safety factor of between 1.3 and 1.5 for embankment slopes. Mr. Jordan also performed an analysis of the site subgrade stability for compaction. Mr. Jordan's analysis showed that the stiff or medium dense silty to clayey sands and clays on the site provide a stable base against which compaction over the life of the landfill can safely occur. Based on the foundation analysis performed by Mr. Jordan on the landfill site, it is evident that the landfill will not be located in an open sinkhole or in an area where geologic foundations or subterranean features will not provide adequate support for the landfill. (See Section 17-701.040(2)(a), FAC). The foundation analysis indicates the landfill will be installed upon a base or in a hydrogeologic setting capable of providing support to the liner and resistance to pressure gradients above and below the liner to prevent failure of the liner due to settlement compression, as required by Section 17- 701.050(5)(b)2., FAC. The foundation analysis further indicates the site will provide support for the landfill, including the waste, cover and structures built on the site (See Section 17-701.050(3)(b), FAC). Section 17-701.050(5)(d)1.a, FAC, requires the lower component of the landfill liner to consist of a compacted soil layer having a maximum hydraulic conductivity of 1 X 10-7 centimeters per second. Mr. Jordan analyzed nine additional core borings to determine if the native soils on the site meet the conductivity standard in the rule or if off-site soils must be blended with on- site soils to achieve the standard. To test whether the on-site soil will meet the conductivity standard, soils were compacted to approximately 95% of the standard maximum for density, which is the industry standard compaction for soil permeability testing. The soils from eight of the nine borings taken at the site exhibited conductivity values of approximately 4.8 X 10-8 centimeters per second. This value is five times less conductive than the value required by the above-cited rule. Only one boring exhibited a conductivity value in excess of the maximum value established in the rule. Based on the conductivity values determined at the site, it is likely the native soils on the landfill site will meet or exceed the maximum conductivity value mandated in the above-cited rule. If the on-site soils do not meet this standard, then bentonite or another material from off site will be blended with the on-site soils to achieve the conductivity standard mandated by the rule. Ground Water Monitoring and Water Quality As required by Section 17-701.050(3)(a), FAC, a ground water monitoring plan for the landfill site was completed in accordance with Section 17-28.700(6), FAC. The original ground water monitoring plan was submitted as part of the application. This plan was incorporated into the notice of intent and the attached draft permit for the landfill, as part of specific condition The ground water monitoring plan subsequently was modified and supplemented by Dr. Herbert to include monitor wells required to be installed by Holmes County on the site, pursuant to the consent order entered into by the county and DER on June 26, 1989, as well as the wells installed by Dr. Herbert as part of his hydrogeologic investigation. DER established a zone of discharge for the landfill site, as required by Rule 17-28.700(4), FAC. The horizontal boundary of the zone of discharge extends to the ground water monitoring compliance wells located at the western, northern, and southern portions of the site and to a line coextensive with the eastern property line for the southeastern portion of the property. The horizontal zone of discharge boundary is located inside the western, northern, and southern property boundaries. The vertical zone of discharge extends from the land surface down to the top of the clay layer underlying the site at approximately +50 to +60 feet NGVD. These zones are established in compliance with Section 17-28.700(4), FAC. The groundwater monitoring plan provides for 15 monitor wells to be located in close proximity to the waste disposal areas and the site boundaries to monitor compliance with all applicable ground water quality standards in Sections 17-3.402, 17-3.404, and 17-550.310, FAC. Four of these wells will be located near the western property boundary to closely monitor water quality to insure contaminants do not seep into Long Round Bay. To detect contamination that may violate applicable surface water quality standards in Sections 17-302.500, 17-302.510, and 17-302.560, FAC, at the edge of and beyond the zone of discharge, the ground water monitoring plan provides for several surface water sampling points on the landfill site near the edge of the zone of discharge. If contaminants are detected in the surface water monitoring system, remediation activities can be implemented to insure the surface water quality standards set forth in the above-cited rules are not violated outside the zone of discharge. As required by Section 17-28.700(6)(g)1., FAC, the ground water monitoring plan provides for a well to be located to detect natural, unaffected background quality of the ground water. The monitoring plan also provides for a well to be installed at the edge of the zone of discharge downgradient from the discharge site, as required by Section 17-28.700(6)(g)2., FAC, and for installation of two intermediate wells downgradient from the site within the zone of discharge to detect chemical, physical, and microbial characteristics of the discharge plume, in excess of the requirement for one such well contained in Section 17-701.050(6)(g)3., FAC. The location of the other wells in the ground water monitoring plan was determined according to the hydrogeologic complexity of the site to insure adequate reliable monitoring data in generally accepted engineering or hydrogeologic practice, as required by Section 17-28.700(6)(g)4., FAC. Due to the essentially stagnant nature of the ground water in the surficial aquifer system, and given the location of the intermediate monitoring wells, any contamination detected at the site can be remediated through recovery wells before it reaches the edge of the zone of discharge. Moreover, due to the confined nature of the surficial aquifer system, there is very little free water in the aquifer. Accordingly, any contamination could be quickly removed by recovery of ground water and de-watering of the area in which the contamination is detected through remediation wells. Also, given the location of the monitoring wells on the site, the northerly direction of the surficial aquifer ground water flow on the northern portion of the site near the existing landfill, and the essentially stagnant nature of the ground water in the surficial aquifer, contamination emanating from the existing cell could be discerned from that emanating from the new cell and recovery and remediation operations directed accordingly. The DER intent to issue and draft permit specify an extensive list of parameters which must be sampled at the ground water monitoring wells and surface water sampling points on the landfill site, as required by Sections 17- 3.402, 17-302.510, 17-302.560, and 17-550.310, FAC. These parameters must be sampled and reported to DER on a quarterly basis. In addition, annual water quality reports must be submitted to DER for the site. Based on the large amounts of clay content and the low horizontal and vertical conductivity values of the on-site sediments, the stagnant nature of the surficial aquifer system, the virtual absence of the Floridan aquifer under the site, and the location of the monitoring wells, the ground and surface water monitoring program provides reasonable assurance that the applicable water quality standards in the rules cited above will not be violated within and outside the zone of discharge. Liner Design, Performance, Quality Control, and Installation Section 17-701.050(5)(d)1., FAC, requires that a composite liner and leachate collection and removal system be installed in a landfill such as that proposed. Mr. Leo Overmann, is a registered professional engineer specializing in landfill engineering. He has over 10 years experience in landfill engineering, design, and construction and has worked on the design and construction of over 50 landfill facilities and 250 landfill disposal cells. He was tendered and accepted as an expert in liner design, quality control plans, and leachate control systems design and performance. It is thus established that the composite liner will have an initial 24-inch layer of compacted clay having a maximum hydraulic conductivity of 1 X 10-7 cm/sec. The 24-inch clay layer proposed by the applicant exceeds the 18- inch minimum thickness provided in the above-cited rule and will be placed in the field in layers or lifts of six inches or less. Each lift will then be treated and compacted to proper specifications in accordance with sound engineering practice in order to insure a tight bond between the clay layers. In the process of placing the clay lifts on the site, any roots, holes, channels, lenses, cracks, pipes, or organic matter in the clay will be broken up and removed, as required by the above-cited rule. In order to insure conductivity of the clay liner component does not exceed the above figure, testing will be done at the site or off-site by constructing a "test pad". A test pad is a site at which the liner construction techniques are tested using the clay material that will comprise the lower liner unit. Once the pad is constructed, the hydraulic conductivity of the clay can be tested to determine the most suitable construction methods in order to meet the above-mentioned conductivity standard and the other design and performance standards in the rule section cited last above. The applicant's liner quality control plan provides for testing of the clay liner hydraulic conductivity and compliance with the other liner design and performance standards in the rule (See Section 17- 701.050(5)(c), FAC). A synthetic geomembrane liner consisting of high density polyethylene (HDPE) will be placed directly on top of and in contact with the clay liner. If the geomembrane should leak, the clay will then retard leachate migration. Although Rule 17-701.050(5)(d)1.a., FAC, only requires a 60-mil thickness liner, the applicant has proposed to use a 80-mil liner. The thicker HDPE liner is less susceptible to stress and wear and tear in the daily landfill operation than is the thinner 60-mil liner required by the rule. The water vapor transmission rate of the 80-mil liner will be approximately 1 X 10-12 cm/sec, which is 10 times less transmissive than the maximum water vapor transmission standard of 1 X 10-11 cm/sec established in Rule 17-701.050(5)(d)1.a., FAC. The design also provides for a drainage layer and primary leachate collection and removal system to be installed above the HDPE liner, as required by the above-cited rule. The drainage layer above the liner consists in ascending order, of a layer of geonet material having an equivalent permeability of approximately three cm/sec; a layer of non-woven, needle-punched geotextile cloth, and a two-foot thick layer of sand. The sand provides a permeable layer which allows liquid to pass through it while protecting the underlying synthetic components of the drainage system and liner. The geotextile cloth component of the drainage layer filters fine particles while allowing liquid to pass through it to the geonet layer. The geonet layer is approximately 3,000 times more conductive than required by Section 17-701.050(5)(f), FAC, so as to allow rapid drainage of leachate off of the HDPE liner. The drainage layer is designed to reduce the leachate head or hydraulic pressure on the liner to one inch within one week following a 25-year, 24-hour storm event. This was determined by use of the Hydrologic Evaluation of Landfill Performance (HELP) model. This model is the standard computer model used in the landfill design and construction industry to determine leachate depth over the synthetic liner in lined landfills. The HELP model calculations submitted in the permit application were prepared by Pearce Barrett, the EPAI landfill design engineer, an expert witness. The HELP model analyzes water and rainfall that falls on active waste disposal cells and percolates through the waste, and the model helps determine the amount of leachate that will accumulate on top of the liner. To determine this amount, the HELP model uses several parameters, including rainfall amount, landfill size, and the number of waste and protective cover layers. The HELP model in this instance involved employment of Tallahassee-collected rainfall data because long-term, site-specific data for the landfill site was not available. The Tallahassee rainfall average is greater than the rainfall average for Chipley, which is closer to the landfill site and, therefore, provides a more conservative, "worst-case" rainfall figure for employment in the HELP model calculations. The HELP is itself a very conservative model, generating a worst-case determination of the amount of leachate that will end up on top of the landfill liner. The model's analysis and calculations indicate that the leachate will be reduced to a one-inch depth on the liner within one week after a 25-year, 24-hour storm event. The landfill project design specifications, in the permit application, provide that all materials in direct contact with the liner shall be free of rocks, roots, sharps, or particles larger than 3/8 of an inch. The geonet and geotextile material are in direct contact with the top of the HDPE liner and the clay liner is located directly below the HDPE liner. The project design specifically provides that the clay material comprising the clay liner component will not contain roots, rocks, or other particles in excess of 3/8 of an inch. No waste materials thus will come into contact with the clay liner. The design specifications also provide additional protection for the liner by requiring that the initial waste placed in the landfill be select waste that is monitored and screened for such things as metal objects, wooden posts, automobile frames and parts, and other sharp, heavy objects which could tear the liner. The liner design contained in the application meets the design requirements of Rule 17-701.050(5)(d), FAC. Section 17-701.050(5)(b), FAC, requires that the liner be constructed of materials having appropriate chemical properties and sufficient strength and thickness to prevent failure due to pressure gradients, physical contact with the waste or leachate to which they are exposed, climatic conditions, stress of installation, and daily operations. The liner is constructed of HDPE, which is superior to other types of plastic for use as municipal and hazardous waste landfill liners due to its physical and chemical properties. It is a material composed of long polymeric chain molecules, which are highly resistant to physical failure and to chemical weakening or alteration. The liner is of sufficient strength and thickness to resist punctures, tearing, and bursting. The liner has a safety factor of over seven, which is three and one-half times greater than the minimum acceptable safety factor of two, required in the Department's rules for landfill liners. The liner proposed in this instance will not fail due to pressure gradients, including static head or external hydrogeologic forces. Mr. Overmann evaluated the effects of a hydrologic head of one foot over the HDPE liner and the clay liner component and determined that the protective sand layer will insure the HDPE liner does not fail. Mr. Overmann relied on the testimony of Dr. Herbert with respect to hydrogeologic site characteristics in concluding that hydrogeologic forces will not cause liner failure. The 80-mil liner proposed by EPAI will be more resistant to the stresses of installation and daily operation than will a 60-mil liner. The two-foot sand layer above the drainage layer and the HDPE liner will also help protect the liner from stresses of daily operation. Mr. Overmann analyzed the liner's potential for failure between the point at which it is anchored on the edge of the landfill and the base of the landfill where settlement is greatest due to waste deposition. He determined that the HDPE liner would elongate on the order of one percent of its length. This is far less than 700 to 800 percent elongation required to break the liner material. Based on the site foundation analysis and the proposed liner design for the landfill, the liner will not fail due to hydrogeologic or foundation conditions at the site. The liner meets the performance requirements set forth in Rule 17-701.050(5)(b)2., FAC. The liner meets requirements that it cover all of the earth likely to be in contact with waste or leachate. The liner extends beyond the limits of the waste disposal cells to an anchor trench where the HDPE liner is anchored by soils and other materials to hold it in place during installation and operation. The liner design provides reasonable assurance that the liner performance standards contained in the above rule will be satisfied. There are no site- specific conditions at the Holmes County landfill site that would require extraordinary design measures beyond those specified in the rule cited above. The permit application includes a quality control and assurance plan for the soil and HDPE liner components and for the sand, geotextile, and geonet components of the drainage layer. A quality control plan is one in which the manufacturer or contractor monitors the quality of the product or services; a quality assurance plan is one in which an independent third party monitors the construction methods, procedures, processes, and results to insure they meet project specifications. The quality control/quality assurance plan requires the subgrade below the clay liner to be prepared to insure that it provides a dry, level, firm base on which to place the clay liner. The plan provides that low- permeability clay comprising the liner will be placed in lifts of specified thickness and kneaded with a sheepsfoot roller or other equipment. Low- permeability soil panels will be placed adjacent to the clay liner and scarified and overlapped at the end to achieve a tight bond. Each clay lift will be compacted and tested to insure it meets the specified density requirements and moisture specifications before a subsequent lift is placed. Lined surfaces will be graded and rolled to provide a smooth surface. The surface of the final low- permeability soil layer will be free of rocks, stones, sticks, sharp objects, debris, and other harmful materials. If any cracks should develop in the clay liner, the contractor must re-homogenize, knead, and recompact the liner to the depth of the deepest crack. The liner will be protected from the elements by a temporary protective cover used over areas of the clay liner exposed for more than 24 hours. The plan also provides specifications for visual inspection of the liner, measurement of in-place dry density of the soil, and measurement of hydraulic conductivity on undisturbed samples of the completed liner. These tests will be performed under the supervision of the professional engineer in charge of liner installation to insure that performance standards are met. There will be a quality control plan for installation of the HDPE liner in accordance with the DER approved quality control plan that incorporates the manufacturer's specifications and recommendations. The quality assurance and quality control plan calls for the use of numbered or identified rolls of the HDPE liner. The numbering system allows for identification of the manufacturing date and machine location, so that the liner quality can be traced to insure that there are no manufacturing anomalies, such as improper manufactured thickness of the liner. The plan also addresses in detail the installation of the HDPE liner. The liner is installed by unrolling it off spools in sections over the clay liner. As it is unrolled, it is tested for thickness with a micrometer and is visually inspected for flaws or potential flaws along the length of the roll. Flaws detected are marked, coded, and repaired. Records are prepared documenting each flaw. If flaws appear frequently, the HDPE is rejected and removed from the site. As the sheets are installed, they are overlapped and bonded together by heat fusing to create a watertight seam. As the sheets are seamed, they are tested in place by nondestructive testing methods to insure seam continuity and detect any leaks or flaws. If flaws are detected, they are documented and the seam is repaired. The seams are also subject to destructive testing, in which a sample of the seam is removed in the field and tested in the laboratory for shearing or peeling apart of the sheets. If destructive testing reveals seam flaws, additional field and laboratory testing is performed and necessary repairs are made. All tests, repairs, and retests are carefully documented, and a map depicting the location of all repairs is prepared for quality control and performance monitoring. The plan for the installation of the geonet, geotextile, and sand layers provides specifications for storage, installation, inspection, testing, and repair of the geonet and geotextile layers. The liner construction and installation will be in conformance with the methods and procedures contained in EPA publication EPA/600/2-88/052, Lining of Waste Containment and Other Impoundment Facilities, as required by Section 17-701.050(5)(a), FAC. The quality assurance and quality control plan proposed exceeds the requirements contained in Section 17-701.050(5)(c), FAC. Leachate Collection and Removal System The landfill design includes a leachate collection and removal system. See Section 17-701.050(5)(e)&(f), FAC. The leachate collection and removal system meets the requirements in the above rule by providing that the design incorporate at least a 12-inch drainage layer above the liner with a hydraulic conductivity of not less than 1 X 10-3 cm/sec at a slope to promote drainage. The drainage layer consists of a geonet layer, a geotextile layer, and a two- foot sand layer. The geonet has a hydraulic conductivity of two to three cm/sec, many times more permeable than required by the rule; and the sand layer will have a hydraulic conductivity of approximately 1 X 10-3 cm/sec. The leachate collection and removal system meets regulatory requirements contained in the above-cited rule that the design include a drainage tile or pipe collection system of appropriate size and spacing, with sumps and pumps or other means to efficiently remove the leachate. The design provides that the Class I cell will be divided into operating disposal cells. The design includes a piping system consisting of a 6-inch diameter pipe to be placed down the center of each of the operating cells and encased in a granular river rock medium. The HELP model calculations included in the permit application and evidence indicate that the leachate will be removed efficiently and effectively and that the leachate head will be maintained in compliance with the performance standards in the rule. The piping system is on a slope that drains to a central location or sump. Based on a design preference of City, the piping design will be slightly modified in the construction drawings to provide that rather than going through the HDPE liner, the leachate piping will run up the side of the cell wall and leachate will be pumped out of the cell into the leachate lagoon. The leachate collection and removal system design provides for a granular material or synthetic fabric filter overlying or surrounding the leachate collection and removal system to prevent clogging of the system by infiltration of fine sediments from the waste or drainage layer. A layer of non-woven, needle-punched geotextile will be wrapped around the granular river rock material surrounding the piping system to filter out fine particles. The design also provides a method for testing whether the system is clogged and for cleaning the system if it becomes clogged. A clean-out tool can be run through the openings in the leachate collection piping system to monitor and pressure clean the pipes if they become clogged. Thus, the leachate collection and removal system will satisfy the leachate system design requirements of Section 17-701.050(5)(f), FAC. The leachate collection and removal system will meet the performance standards in paragraph (e) of that rule, as well. The leachate collection and removal system will be located immediately above the liner and will be designed, constructed, operated, and maintained to collect and remove leachate from the landfill. The HELP model analysis and calculations indicate that the leachate depth will not exceed one foot on top of the liner. The leachate collection and removal system will be constructed of materials which are chemically resistant to the waste disposed of in the landfill and leachate expected to be generated. The geonet will be comprised of HDPE, which is chemically resistant to waste and leachate due to its molecular structure. The collection piping system also will be composed of HDPE. The geotextile layer will be composed of a non-woven polyester or polypropylene fabric, which has been determined to be resistant to and compatible with municipal solid waste leachates. The sand layer will consist of non-carbonate materials that are chemically resistant to or compatible with leachate. The evidence shows that the system will be of sufficient strength and thickness to prevent collapse under the pressures exerted by overlying waste, cover materials, and equipment used at the landfill. Geonet drainage layers, HDPE piping, geotextile fabric, and sand layers such as those proposed are routinely and effectively used in landfills, including those that are deeper than the landfill proposed in the instant situation. The leachate collection and removal system meets requirements in paragraph (e) of the above rule, as well, that the system be designed and operated to function without clogging through the active life and closure period of the landfill. The geonet and geotextile layers will prevent the piping system from clogging. If clogging occurs, the system is designed to allow cleaning of the pipes. The collection and removal system will be designed and constructed to provide for removal of the leachate within the drainage system to a central collection point for treatment and disposal. The leachate will drain by gravity from the sump into the leachate lagoon, but will be altered during construction to provide for pumping of leachate out of the system into the lagoon in order to prevent having to penetrate the HDPE liner with piping. Once the leachate is pumped into the lagoon, it will be recirculated over the landfill face, evaporated from the lagoon, or removed off site for treatment and disposal at a waste disposal and treatment plant. Surface Water and Storm Water Management System The storm water management system for the landfill is designed and sized according to local drainage patterns, soil permeability, annual precipitation calculations, area land use, and other characteristics of the surrounding watershed. (See Rule 17-701.050(5)(h), FAC). The engineering expert for the applicant, Mr. Barrett, designed the storm water management system. He considered the presence of dense clay soils on the site which do not provide good percolation because of low permeability, with regard to storm water falling on the site. He also took into account existing drainage patterns, as well as the annual precipitation. The retention and detention ponds and drainage ways designed into the system consist of three detention basins located at the north, southeast, and southwest quadrants of the site and one retention basin located on the western portion of the site. The site is divided into watersheds and is drained by an on-site gravity system consisting of runoff collection pipes to intercept the overland flow and convey the runoff into the retention and detention facilities. Runoff from the northern watershed is treated in detention basin 1, that from the southeast watershed in basin 3, and runoff from the southwest watershed area in detention basin 4. Runoff from the western area or watershed is treated in retention basin 2. A computer model was used by Mr. Barrett in determining the appropriate design for the storm water management system. The model is called the hydrologic engineering center-1 model developed by the U.S. Army Corps of Engineers. It is a model routinely and widely accepted in the storm water engineering design profession and discipline for designing such systems. It has historically been accepted by the Florida Department of Transportation, DER, the Corps of Engineers, and a number of counties and municipalities. A number of parameters, such as total runoff area, watershed characteristics, rainfall amount, time of concentration, lag time, and route description, were put into the model to develop the storm water management system design. Because no actual runoff data was available to calibrate the model, the model was run using data for two hypothetical storm events, the 25-year, 24-hour storm and the 10- year, 24-hour storm. Total rainfall amounts for these events were obtained from rainfall intensity duration-frequency curves developed by the Florida Department of Transportation (FDOT) for this geographical area. The detention basins are wet treatment facilities having permanent pools of water. Wetlands vegetation grows on the littoral slopes of the detention basins and removes pollutants from the storm water by natural uptake of pollutants contained in the water through the roots, stems, and leaves of the plants. Based on the HEC-1 model, the detention basins are designed to store one inch of runoff over the permanent pool control elevation and to retain the first one-half inch of rainfall, as required by Section 17-25.040(5), FAC, for projects having drainage areas of less than 100 acres. Each basin has several pipes to allow outflow when the water level exceeds the one-half retention level. As water rises to the outflow pipe level, it flows out of the basin and eventually discharges off site. The outflow pipes are two to three inches in diameter, allowing discharge of a controlled volume of water at a controlled rate. The discharge structures will be constructed in accordance with construction drawings that will include erosion control devices, such as rip- rap. The basins also have vertical riser pipes that discharge if water reaches a higher set elevation, specified in the permit application. Only if the water level rises to an elevation exceeding the 25-year, 24-hour storm elevation would the water flow over the berm. As required by Section 17-25.025(8), FAC, the storm water management system design provides for skimmers to be installed on discharge structures to skim oil, grease, and debris off water discharged from the basins. No more than one-half of the volume will be discharged in the first 60 hours following a storm event. The detention basin slopes that exceed a four to one slope down to a depth of two feet below control elevation will be fenced for safety purposes. See Rule 17-25.025(6), FAC. The retention basin is designed to retain the first one-half inch of rainfall with filtration of the first one-half inch through a sand filter bed in the bottom of the basin within 72 hours following the storm event. The sand filter bed will consist of clean well-graded sand having a minimum horizontal and vertical conductivity or percolation rate of six inches per hour. The retention basin has vertical risers, as provided in the application. Erosion and sediment control "best management practices" will be used during construction to retain sediment on site, as referenced in Rule 17-25.025(7), FAC. Other best management practices, such as sodding embankments or stabilizing slopes with geomats or sand bags will be used. The system is designed to minimize mixing of the storm water with the leachate. (Rule 17-701.050(5)(h)3., FAC). As waste is placed in the landfill, berms are constructed laterally across the cell face to segregate the waste disposal areas from other areas in the cell not yet receiving waste. Storm water coming into contact with waste flows down through it and eventually is collected and removed from that cell by the leachate collection and removal system described above. Storm water falling in a portion of a cell in which waste has not been deposited is collected by piping and pumped to the storm water management system for treatment of storm water because it does not constitute leachate, not having traversed on or through waste. Storm water will not come into contact with the waste within the system as designed. There are not any pipes connecting the waste disposal cells to the storm water system or basins. The storm water system in the permit application was designed in accordance with the criteria enunciated in the above-cited rule. This fact was established by the unrefuted expert testimony of Mr. Barrett and was independently confirmed by three other engineers, including the storm water program engineer of DER, each of whom reviewed the storm water system design. The storm water program engineer inspected the site and determined that the proposed management system will not pose any risk to downstream property, as required by the statute and rules enforced by the Northwest Florida Water Management District (NWFWMD). CVA adduced the testimony of Mr. Hilton Meadows in an effort to demonstrate that the storm water management system design in EPAI's application, and case-in-chief, does not meet applicable criteria in Chapters 17-701 and 17- 25, FAC, referenced above. Mr. Meadows attempted to demonstrate, by calculations determined using the "rational formula", that storm water will be discharged off the landfill site at a rate of 16.11 acre feet per minute during a 25-year, 24-hour storm event. An acre foot of water is a depth of one foot of water covering a surface acre in area. According to Mr. Meadows, all storm water would be thus discharged off site at a single discharge point creating a "blowout" of the storm water management system structure at that point which would flood and erode Long Round Bay off the site. In rebuttal, however, Mr. Barrett explained that Mr. Meadows' calculations merely determined the total amount of water that would fall on the landfill site during a 25-year, 24-hour storm event and failed to consider the time-volume reduction of storm water off the site over a 24-hour time period. Mr. Barrett clearly established that 16.11 acre feet of water would not be discharged per minute off the site during the 25-year, 24-hour storm event. It was further demonstrated that Mr. Meadows did not perform any computer modeling in analyzing site-specific compliance of the proposed storm water management system design against the framework of the applicable design and performance standards in Chapters 17-25 and 17-701, FAC. CVA did not adduce any preponderant evidence which would demonstrate that the storm water management system proposed will not meet the design performance standards contained in the rules and rule chapters referenced above. In view of the more extensive background, education, knowledge, and training acquired both through education and experience; in view of the more extensive and detailed investigation and calculations underlying his design, including the computer modeling effort referenced above; and in view of his corroboration by three other witnesses within the storm water engineering discipline, the opinions of Mr. Barrett, and the witnesses corroborating his testimony, are accepted over that of Mr. Meadows. Gas Control System The gas control system for the landfill will meet the design requirements contained in Rule 17-701.050(5)(j), FAC. It will be a passive system, meaning that no mechanical methods are necessary to withdraw gas from the landfill. A ventilation system will be installed as the final cap is placed on the landfill and will consist of perforated PVC pipes placed vertically down through the soil cover layers, to reach the solid waste disposal areas. The pipes are wrapped in geotextile fabric in order to prevent them from being infiltrated by fine soil particles which could cause clogging of the system. The pipes will run laterally across the top of the waste disposal areas to transfer gas to the vertical vents which vent the gases to the atmosphere. If gas production should exceed the capacity of the passive ventilation system, vegetation will be damaged and odor will become objectionable. If that occurs, a pump can be connected to the system to extract gases mechanically and vent them into the atmosphere or flame them off as a more positive control method. The proposed gas system is typical for landfills of this size and has been well tested for efficiency at other such facilities. The gas control system will not interfere with or cause failure of the liner or the leachate control systems. The gas control system is designed to prevent explosion and fires due to methane accumulation, damage to vegetation on the final cover of the closed portions of the landfill or vegetation beyond the perimeter of the property. It will control any objectionable odors migrating off site. The system, as proposed and proven in this case, meets the design requirements contained in the above-cited rule. Landfill Operation Paul Sgriccia, vice president of City, is a registered professional engineer specializing in landfill design, operation, and management. He has extensive professional experience in (and supervises a 20-person staff) designing landfills, obtaining permitting, and overseeing daily operation, environmental regulation compliance, compliance monitoring, hydrogeology, and groundwater monitoring with regard to landfill projects proposed, being constructed, or operated by City. Additionally, he is trained as an engineer. He was tendered and accepted as an expert in the fields of landfill operations and landfill management. The above-cited rule chapter requires landfills to have a ground water monitoring system that complies with monitor well location, construction, and sampling requirements of Sections 17-3.401, 17-4.26, and 17-28.700, FAC, and ground water sampling and testing in accordance with those sections, as well as Section 17-22, Parts III and IV, FAC. Mr. Sgriccia's testimony shows that the ground water monitoring plan proposed and considered in conjunction with the hydrogeologic investigation and ground water monitoring recommendations made by Dr. Herbert will meet these regulatory requirements. The recommendations made by Dr. Herbert concerning ground water monitoring should be incorporated as conditions on issuance of the permit. The applicant has voluntarily agreed to notify DER one year in advance of its ground water monitoring schedule so that DER can be present to collect "split samples", as referenced in Rule 17- 701.050(6)(a)3., FAC. Any grant of a permit should also be conditioned on this policy being strictly followed. The application also contains an operation plan, as required by the above-cited rule at paragraph (6)(b). The operation plan provides that EPAI will be the entity responsible for the operation and maintenance of the landfill. The plan provides that in the event of a natural disaster or equipment failure that would prevent waste from being deposited at the landfill, the waste will be disposed of at the Springhill landfill in adjacent Jackson County, pursuant to an agreement between EPAI and Waste Management, Inc., the operator of that landfill. The operation plan contains detailed procedures to control the type of waste received at the facility. Hazardous waste, biomedical waste, lead-acid batteries, white goods, used oil, and waste tires will not be accepted for disposal at the proposed landfill. Asbestos will only be accepted if it is in the proper regulatory approved containers. The operation plan specifies inspection procedures and procedures to be followed if prohibited wastes are discovered. All vehicles hauling waste to the landfill will be weighed and inspected by the operator or appointed attendants at the entry to the landfill. A load inspection will be performed to determine if the waste conforms to the approved waste description before the waste can be disposed. Paperwork, checks, controls, and records maintenance will be performed, as well as random load inspections for municipal solid waste generated by households. Spotters will observe the actual unloading of each vehicle at the active cells. Unacceptable waste will be rejected and cannot be disposed of at the site. Unacceptable waste that is already unloaded inadvertently at the site will be required to be removed immediately. DER will be notified of attempts to dispose of unacceptable waste at the landfill site. The operation plan provides for weighing and measuring of incoming waste and vehicle traffic control and unloading control. All these vehicles will be weighed and inspected before proceeding to disposal cells. The operation plan provides a method and sequence for filling waste into the disposal cells. Waste disposal will begin in the southwest corner of cell one and waste will be disposed in that cell up to an established final grade and the final capping process will be commenced before beginning disposal in another cell. Waste will be compacted on a daily basis when a load is received. Compaction equipment operates continuously over disposed waste loads to obtain maximum compaction. A daily cover of six inches of clean soil will be applied at the end of the day unless more waste will be disposed on the working face within 18 hours. Daily cover helps reduce disease-vectors, such as flies and rodents, as well as to reduce windborne litter. The gas control system will be maintained to insure that riser pipe vents are not dislodged and will be monitored to insure that explosive limits of methane are not reached. When leachate levels in the lagoon reach a certain level, the leachate will be withdrawn and recirculated back over the working face of the disposal area or else hauled off site to a waste water treatment facility for treatment and disposal. Leachate recirculation is becoming an accepted treatment method by regulatory agencies and is considered an effective industry standard treatment method. Leachate is recirculated by application to the active working face of the disposal cell by a watering truck and is dropped on the cell through a distribution bar or open valve pipe at the back of the truck. Leachate will not be applied during rainfall nor will it be aerially sprayed on the cell. Municipal solid waste has significant absorption capacity, so that large quantities of recirculated leachate are absorbed by the waste. The leachate that does eventually run through the waste is collected in the leachate collection and removal system and does not mix with runoff going into the storm water management system. The leachate lagoon is surrounded by a containment dike area with a loading station inside the dike for removal of leachate by truck for off-site treatment at a waste water treatment plant. A hose is hooked to a tank truck and leachate is pumped into the truck. Any spills during the loading process will be contained by the dike and will flow back into the leachate lagoon. The storm water management system will be operated to insure that there is no mingling of leachate with storm water runoff. The design provides for three diversion berms running the length of the Class I disposal cell which divide the cell into four smaller working cells. Any rainwater falling in the clean, unused cells will be removed to the storm water management system. The rain coming into contact with the working face is leachate and is collected and removed from the cell by the leachate control system. The operation plan addresses and satisfies each requirement of Section 17-701.050(6)(b), FAC. Rule 17-701.050(6)(c), FAC, requires certain operational design features to be incorporated in the landfill. Thus, the entire site will be enclosed by a minimum four-foot high fence with a gate that will be locked during off hours. To Shoo Fly Bridge Road is a county-maintained, all-weather road that provides main access to the landfill site. In addition, the roads on the site will be stabilized, all-weather roads. The operation plan provides for signs indicating the name of the operating authority, traffic flow, hours of operation, and any disposal charges, as well as scales for weighing the waste loads received at the site. Dust will be controlled by water spraying to avoid contaminated runoff due to chemical sprays and oils. Dust will be further minimized by use of paved roads, minimizing the areas of disturbed soil, vegetating stockpiles as soon as possible, and vegetating final and intermediate cover areas. Daily cover, use of portable fences, and cleaning operations by operating personnel will provide litter control. Firefighting equipment and facilities adequate to insure the safety of employees will be located on site. Daily cover will be used to minimize the potential for fire and fire extinguishers and water will be used to fight fires. If a fire is too large to effectively fight with on-site equipment, the Holmes County Fire Department will be called to assist. The operation plan for the landfill meets the requirements depicted in the above-cited rule at paragraph (d) in terms of personnel and facilities requirements. A certified attendant will be on site during all hours of operation and a telephone will be located on site. Equipment requirements are contained in the above-cited rule at paragraph (e). The applicant will thus maintain and operate a large bulldozer, soil scraper, front-end loader, water truck, motor-grader for cleaning roads, and portable pumps for storm water management and leachate management. In the event of an equipment breakdown, the plan provides for an agreement between the operator and a local heavy-equipment company to provide a compactor and other essential equipment within 24 hours. The equipment will have protective roll bars or roll cages, fire extinguishers on board, and windshields. The operation plan otherwise provides for protective devices and gear for heavy equipment and for personnel themselves, such as dust masks and hearing protection devices, hygienic facilities in the maintenance building and office, potable water, electric power, emergency first aid facilities and the like. Employees will be hired locally and trained in appropriate safety procedures and practices. In accordance with the provisions of Section 17-701.050(6)(j), FAC, the operation plan calls for solid waste in the Class I cell to be spread in layers of approximately two-feet in thickness and compacted to approximately one-foot thickness before the next layer is applied. Weekly compaction of the waste will be accomplished by heavy equipment at the Class III cell. The compostible materials and the yard trash at the Class III cell will be removed and composted on site. Bulky materials that are not easily compacted will be worked into the other waste materials to the extent practicable. As required by paragraph (k) of the above-cited rule, the compacted solid waste material will be formed into cells with the working face and side grades above surface at a slope of no greater than 30 degrees. The cell depth will be determined by the area in operation, daily volume of waste, width of the working face, and good safety practices. Waste will be placed into the cell beginning at the southwest corner and spread northward, eventually reaching grade level. As elevation of the cell approaches final grade, intermediate and final cover is applied to the cell. The final slope grade will be approximately 4:1 and will be terraced. The operation plan meets the requirements contained in paragraph (6)(1) of the above-cited rule that the cell working face be only wide enough to accommodate vehicles discharging waste and to minimize the exposed area and use of unnecessary cover material. The waste will not be spread across the entire cell immediately but instead will be spread on a small working face. The typical working area may be 50 feet by 50 feet or slightly larger, and will become larger as more loads of waste are received. Waste is deposited on the working face and compacted until final grade is reached, working across the face of the active cell in a terraced effect. Intermediate and final cover are applied to the portions of the cell that have reached design dimensions. The working face is kept as small as possible to minimize leachate generation, disease-vector problems, and the need for daily cover. The landfill operation meets the requirements contained in paragraph (6)(m) of the above-cited rule to the effect that initial cover will be applied to enclose each working cell except the working face, which may be left uncovered if solid waste will be placed on the working face within 18 hours. If there are adverse environmental impacts or problems with disease-vectors, initial cover will be placed on the working face at the end of each day for the Class I landfill cell and once a week for the Class III cell. The operation plan provides that an intermediate cover of one foot of compacted soil will be applied in addition to the six-inch daily cover within seven days of completion of the cell if final cover or an additional lift is not to be applied within 180 days of cell completion, as required by paragraph (6)(n) of the above-cited rule. The landfill will be closed in accordance with Sections 17-701.050(4) and 17-701.070-.076, FAC. The operation plan further provides that daily cover will control disease-vectors, such as flies, rather than employing use of pesticides. Uncontrolled or unauthorized scavenging will not be permitted at the landfill and will be controlled by fences and on-site personnel. Class III Cell The proposed Class III cell will be located over the old Class I cell last used by Holmes County. This area has a recompacted clay liner and a leachate collection system in place. Only yard trash will be deposited in the Class III cell, however. Based upon the Class III cell design and operating plan that will permit only yard trash disposal in it, any leachate generated from the Class III cell will not pose any threat to or violate applicable water quality standards in or outside the zone of discharge. Asbestos disposal is proposed at the landfill site. A separate asbestos disposal cell is proposed. The operation plan will provide that the asbestos be covered daily with a proper dust suppressant or six inches of non- asbestos material or will be disposed of in an area where proper warning signs, fences and barriers are present. Asbestos accepted for disposal at the landfill will be bagged and accompanied by shipping documents as required by EPA rules appearing in Title 40, Code of Federal Regulation. Persons working around asbestos will be specifically trained in its handling and must use appropriate protective equipment, as required by the National Emission Standards for Hazardous Air Pollutants set forth at 40 CFR 61.25 and other applicable federal regulations. The applicant proposes to dispose of petroleum contaminated soils at the landfill, as well. These soils will be mixed in with the waste on the working face. The soils will not be used as an intermediate cover or come into contact with surface water that will be conveyed to and treated in the storm water management system. Landfill Closure The application includes general plans and schedules for closure of the new and existing landfills. Once final grade is reached, an intermediate cover is applied over the daily cover if the working face will not receive any more waste or will receive final cover within 180 days. The gas control system will then be installed and the final cover consisting of an impermeable synthetic cap will be applied. The final cover will be a plastic cap constructed of polyvinyl chloride (PVC), HDPE, or some other synthetic material and covered by one foot of protective soil, topped by six inches of topsoil to promote vegetation growth. Soils for the closure effort will be obtained on site and will not be obtained by dredging in any jurisdictional wetlands. The final design provides for a terraced landfill profile for the new Class I cell. The waste levels will not exceed 10 feet in height and will be terraced at a 4:1 slope. The terraces will slope back against the cell wall and will be underlain by a subdrain to collect runoff and convey it to the storm water management system. This will prevent erosion of the final cover, waste exposure, and thus, additional leachate generation. The application contains a closure plan containing a general landfill information report and various other plans, investigations, and reports addressing all criteria and factors required to be addressed by Section 17- 701.073(6)(a)-(i), FAC. All such plans, reports and investigations were certified by Pearce Barrett, a registered professional engineer, expert witness and landfill designer for the applicant. The application contains a detailed estimate of closure costs and a monitoring and long-term care plan for the landfill meeting the requirements of Sections 17-701.075 and 17-701.076, FAC. An interest-bearing escrow account will be established for the landfill within 30 days of permanent issuance to cover the closure costs. Funds for closure, monitoring and long-term care of the landfill will be set aside as tipping fees are paid. As portions of the landfill are closed, funds in the escrow account will be available to pay for closure. This type of landfill closure and closure funding is termed "close as you go". This insures that available funds to close the landfill will be present so that funding problems such as those associated with the existing landfill will not arise. The long-term care plan provided for in the permit application and in the applicant's evidence provides for monitoring and maintenance of the landfill for a 20-year period after closure is complete. The storm water management system will be maintained and ground water monitored as part of this long-term care plan.
Recommendation Having considered the foregoing Findings of Fact, Conclusions of Law, the evidence of record, the candor and demeanor of the witnesses, and the pleadings and arguments of the parties, it is RECOMMENDED that a Final Order be entered by the Department of Environmental Regulation dismissing the petition filed in opposition to the permit application and approving EPAI's application for the permit at issue, authorizing construction and operation of a 20-acre Class I, Class III, and asbestos landfill, as well as authority to close the existing 25.5-acre Class I landfill in Holmes County, Florida, in the manner and under the conditions delineated in the application, as amended, the Intent to Issue and draft permit and the above Findings of Fact and Conclusions of Law. It is further RECOMMENDED that the motion for attorney's fees and cost be denied. DONE AND ENTERED this 6th day of April, 1993, in Tallahassee, Florida. P. MICHAEL RUFF Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 6th day of April, 1993.
The Issue The issue in these consolidated cases is whether the agency should grant variances from Rule 10D-6, F.A.C. regarding construction of on-site sewage disposal systems on the lots in question.
Findings Of Fact Jerry Gagliardi is the developer and engineer for an 8-lot subdivision on Merritt Island, Brevard County, Florida. Mr. Gagliardi is a self-employed civil and mechanical engineer. The small subdivision has a long, narrow configuration, extending west to east. It is bounded on the north by an existing drainage ditch and a large tract of undisturbed wetlands. Its south boundary is a finger canal, and its east boundary is Pelican Creek. With the exception of the wetlands, most of the property in the area is already developed. There are no residences built yet on the eight lots. Hook-up to an existing sanitary sewer system is available within one- quarter mile of the subdivision. The entire area, with several finger canals, is served by the sanitary sewer system. Mr. Gagliardi planned to install on-site disposal systems (septic tanks) in the subdivision. When his plan was rejected he applied for variances for lots 1 and 2 in July 1992, stating economic hardship as the basis for the request. The applications were reviewed by Gregory D. Wright, Supervisor for Brevard County Consumer Health Services and his staff. Several site visits were made and a site evaluation was completed. Mr. Wright recommended denial of the variance because the sanitary sewer system is available; the soils (mostly sand and shell) are unsuitable for on- site disposal systems; and the area, virtually surrounded by water, is environmentally very sensitive. Mr. Wright is also concerned that a variance for the two lots will establish a precedent for variances on the remaining lots in the subdivision. Mr. Wright also observed that there is an existing irrigation well on a neighboring lot within thirty feet of the proposed septic tank on lot #1. This well does not appear on Mr. Gagliardi's plans. The Department of Health and Rehabilitative Services Review Group for Individual Sewage Disposal concurred with the local agency's recommendation after consideration of Mr. Gagliardi's hardship argument. The request was not considered to be a minor deviation from the minimum requirements of the law and regulations. For approximately three years Jerry Gagliardi has been providing information on his development plans to the local county staff. He has become extremely frustrated with the process. However, he has still failed to produce the evidence which he must have to justify the variances he is seeking. At the hearing, Mr. Gagliardi claimed that hook-up to the existing sanitary sewer system is impossible because there is insufficient elevation for gravity feed and there is not enough room on Banana River Drive for another sewer line easement. He did not submit evidence to support that claim and it is unclear whether he has made that claim to the local staff for their verification. He has consistently claimed that hook-up to the existing system is prohibitively expensive. He has estimated that the cost of installing hook-up to the existing system would be $52,642 for the entire subdivision, or $6580.25 per lot. He has estimated that installation of aerobic on-site septic systems would cost $28,000.00 or $3500 per lot. This estimate does not include the cost of culverting the ditch along the north boundary of the property. The culvert may be necessary to meet the water body set-back requirements and, assuming that a permit would be granted for its construction, the culvert would substantially increase the cost of the septic tank project. As recently as three weeks prior to hearing, Mr. Gagliardi provided information to the staff that the value of the lots in the subdivision is $60,000.00 each, for lots #1 through #6; and $115,000.00 and $120,000.00, for lots #7 and #8, respectively. At hearing he repudiated that information as being based on three year old appraisals. He now asserts that the value of the lots is closer to $40,000.00 each. Petitioner's exhibit #2 is a cover letter dated January 4, 1993, to Mr. Gagliardi from the Brevard County Property Appraiser. Attached to the letter are four property management print-outs reflecting the value of two lots as $35,000.00, and two others as $65,000.00. The record does not reflect which lots those are in the subdivision and there is no explanation for the inflated values provided to the staff after the printouts were received. It is impossible from the confused and conflicting evidence provided at hearing to determine that the petitioners are entitled to a variance.
Recommendation Based on the foregoing, it is hereby RECOMMENDED: that the agency enter its final orders denying Petitioners applications for variances. DONE AND RECOMMENDED this 11th day of May, 1993, in Tallahassee, Florida. MARY CLARK Hearing Officer Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-1550 (904) 488-9675 Filed with the Clerk of the Division of Administrative Hearings this 11th day of May, 1993. COPIES FURNISHED: Sonia Nieves Burton, Esquire Department of Health and Rehabilitative Services District 7 Legal Office 400 West Robinson Street, Suite S-827 Orlando, Florida 32801 Jerry Gagliardi, Agent for Phil Sperli and Gail Bobzein Post Office Box 541061 Merritt Island, Florida 32954 Robert L. Powell, Agency Clerk Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700 John Slye, General Counsel Department of Health and Rehabilitative Services 1323 Winewood Boulevard Tallahassee, Florida 32399-0700
The Issue The issue is whether Petitioner's request for a variance from agency rules governing daily domestic sewage flow so as to authorize an increase in the number of seats for his restaurant located in Howey in the Hills, Florida, should be approved.
Findings Of Fact Based upon all of the evidence, the following findings of fact are determined: Petitioner, Fletcher C. Bishop, Jr., is the owner of a parcel of property located at Lot 22, Block C-2, Lakeshore Heights Subdivision, 102 South Palm Avenue, Howey in the Hills, Florida. The property consists of .0946 acre, or approximately one-tenth of an acre, and is one of several parcels located in Block C-2. Since January 1997, the property has been leased to Robert P. Jencic, who now operates a pizza restaurant on the premises known as Hungry Howies Pizza Shop. According to Jencic, he has a contract to purchase the property from Bishop at the end of his lease, or on March 1, 1998. Whether the property was actually purchased by Jencic on that date is not of record. Lakeshore Heights Subdivision is not served by a central wastewater treatment system; rather, each lot is served by a septic tank and drainfield system. Lot 22 adjoins several other commercial or business establishments situated on Lots 20, 21, 23, and 23A in the western half of Block C-2, and all share a common drainfield easement located to the rear of the lots. Except for Lot 20, all lots have tied into the drainfield and now use the easement for waste disposal purposes. Because they share a common easement, each lot has been allocated a portion of the easement for its respective septic tank and drainfield. In Petitioner's case, he has been allocated approximately 990 square feet. After Jencic signed a commitment in January 1997 to lease and purchase the property, he made extensive renovations in order to convert the property to a restaurant. On or about February 20, 1997, Jencic met with a representative of the Lake County Health Department, an agency under the direction and control of Respondent, Department of Health (Department). At that time, Jencic filed an application for a site evaluation concerning the replacement of the existing onsite sewage disposal system. The application noted that he intended to operate a pizza restaurant with 56 proposed seats. On February 21, 1997, a site evaluation was conducted by Robin Gutting, a Lake County Department of Health environmental supervisor. According to her report [t]he property size of 4120 square feet with available central water will allow a maximum 236 gallons of sewage flow per day . . . This will allow a 12 seat restaurant using single service articles and operating less than 16 hours per day. . . The size of the Onsite Sewage Treatment and Disposal System would be a minimum 900 gallon tank with 197 square feet of drainfield trench configuration. (emphasis added) Jancic received a copy of the report on or about March 12, 1997, and it clearly conveyed to him the fact that he could operate no more than 12 seats in his restaurant due to sewage flow limitations on his property. Despite being on notice that the restaurant would be limited to only 12 seats due to the lot flow restrictions, on March 19, 1997, Jencic filed an application with the Lake County Health Department for a construction permit to replace the existing septic tank with a 900 gallon septic tank, install a 900 gallon grease trap, and utilize a 197 square-foot primary drainfield and a 200 square-foot bed system. The application indicated that Jencic intended to operate a restaurant "for 12 seats, single service, open less than 16 hours per day." On May 28, 1997, Jencic's application was approved for "12 seats, single service, open less than 16 hours per day." After installing the new tank and grease trap, Jencic began restaurant operations subject to the above restrictions. After operating his pizza restaurant for a short period of time, Jencic determined that he could generate a profit only if the restaurant could be expanded to allow more seats, and he could use china and silverware (full service articles) rather than single service articles (throwaway utensils). To do this, however, he would need a larger sewage treatment system. By letter dated November 9, 1997, Jencic requested a variance from various Department standards for onsite sewage treatment and disposal systems so as to "increase the seating from 12 seats to a maximum of 36 seats and [authorize] the use of china, silverware, and dishes." Although the letter does not refer to any rules, the Department has treated the letter as seeking a variance from three of its rules found in Part I, Chapter 64E-6, Florida Administrative Code. First, Rule 64E-6.001(4)(c), Florida Administrative Code, provides that an establishment cannot exceed the lot flow allowances authorized under Rule 64E-6.005(7)(c), Florida Administrative Code. If the seating capacity in the restaurant were increased, Jencic would exceed the lot flow allowances in violation of this rule. Second, Rule 64E-6.005(7)(b), Florida Administrative Code, prescribes the manner in which a determination of lot densities shall be made. Among other things, daily sewage flow cannot exceed an average of 2,500 gallons per day per acre. The easement which Petitioner shares with other lots is far less than an acre, even counting the space allocated to the adjoining lots. Finally, Rule 64E-6.008(1), Florida Administrative Code, provides that minimum design flows for systems serving a structure shall be based on the estimated daily sewage flow as determined by Table I of the rule. That table specifies an estimated daily sewage flow of 20 gallons per seat for restaurants using single service articles only and operating less than 16 hours per day. Therefore, a 12-seat restaurant with those operating characteristics would require a system that could handle at least 240 gallons of sewage flow per day. The table further provides that a restaurant operating 16 hours or less per day with full service will generate an estimated sewage flow of 40 gallons per seat. Thus, a restaurant with up to 36 seats, as Jencic has requested, would require a system handling at least 1,440 gallons of sewage flow per day. In order to qualify for a variance, an applicant must show that (a) the hardship was not caused intentionally by the action of the applicant; (b) no reasonable alternative exists for the treatment of the sewage; and (c) the discharge from the onsite sewage treatment and disposal system will not adversely affect the health of the applicant or significantly degrade the groundwater or surface waters. In its letter denying the variance, the Department asserts that Jancic has failed to show that items (a) and (c) have been satisfied. Jencic, who recently immigrated to this country, will suffer considerable financial hardship if the request for a variance is denied. Indeed, he demonstrated at hearing that his life savings have been invested in the restaurant, and his parents have placed a substantial mortgage on their property to assist him in his endeavor. If he does not purchase the property as required by his contract, he will be forced to restore the property to its original condition at great expense. In short, given his investment in renovations and equipment, unless the restaurant is expanded, he fears he must file for bankruptcy. Both parties agree that Jancic will suffer a hardship if the variance is not approved. However, Jancic was aware of the lot flow limitations before he made application to replace the existing septic tank in March 1997, and well before he began operating the restaurant in May 1997. Unfortunately, then, it must be found that the hardship was intentionally created by Jencic's own actions. If the variance were approved, it would result in a much larger amount of sewage being discharged into the easement, which could not handle that amount of flow. This in turn could cause the system to fail, thus creating a sanitary nuisance and the leaching of sewage into the groundwater. In this respect, Jancic has failed to show that the discharge will not adversely affect the health of the applicant or significantly degrade the groundwater or surface waters. Jencic offered into evidence a summary of his water usage during a representative period in 1997. That document indicated that metered water usage was approximately 3,000 to 4,000 gallons per month, even when he temporarily (and without authority) expanded his restaurant to 24 seats during a recent two-month period to test water consumption at the higher seating capacity. However, because the sewage strength of a restaurant is far greater than that of a residence, a sewage system must be sized on estimated waste flow, and not metered water flow rates. Therefore, the fact that Jancic's monthly metered water usage is less than 4,000 gallons is not relevant to a determination of the issues. The same finding must be made with respect to Jancic's well-intentioned efforts to decrease water flow by installing high pressure toilets and timed spring systems on his hand sinks. Jencic also requested that he be allowed "spike time" during the hours of 11:30 a.m. to 1:00 p.m. and 6:00 p.m. to 7:30 p.m., which are his peak hours of the day. In other words, the undersigned assumes that he is asking that consideration be given to the fact that he has virtually no business during the other hours of the working day, and that the flow during the peak hours alone would not be excessive on a daily basis. However, the Department's rules are calculated to maximum usage, and thus a "spike" allowance is not allowed.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that the Department of Health enter a Final Order denying Petitioner's request for a variance. DONE AND ENTERED this 11th day of March, 1998, in Tallahassee, Leon County, Florida. DONALD R. ALEXANDER 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 11th day of March, 1998. COPIES FURNISHED: Angela T. Hall, Agency Clerk Department of Health Building 6, Room 102 1317 Winewood Boulevard Tallahassee, Florida 32399-0700 Robert P. Jencic 102 South Palm Avenue Howey in the Hills, Florida 34737 Marya Reynolds Latson, Esquire Post Office Box 2408 Ocala, Florida 34478 James Hardin Peterson, III, Esquire Department of Health Building 6, Room 102 1317 Winewood Boulevard Tallahassee, Florida 32399-0700
