The Issue The issues to be determined in these consolidated cases are whether All Aboard Florida – Operations, LLC (“the Applicant”), and Florida East Coast Railway, LLC (“FECR”), are entitled to an Environmental Resource Permit Modification authorizing the construction of a stormwater management system and related activities to serve railway facilities, and a verification of exemption for work to be done at 23 roadway crossings (collectively referred to as “the project”).
Findings Of Fact The Parties Petitioners Martin County and St. Lucie County are political subdivisions of the State of Florida. Petitioners have substantial interests that could be affected by the District’s proposed authorizations. Intervenor Town of St. Lucie Village is a political subdivision of the State of Florida. Intervenor has substantial interests that could be affected by the District’s proposed authorizations. The Applicant, All Aboard Florida – Operations, LLC, is a Delaware limited liability company based in Miami. All Aboard Florida is part of a group of corporate entities formed for the principal purpose of developing and operating express passenger train service in Florida. Co-applicant Florida East Coast Railway, LLC, is a Florida limited liability company based in Jacksonville. FECR owns the existing railway corridor the passenger train service will use between Miami and Cocoa. South Florida Water Management District is a regional agency granted powers and assigned duties under chapter 373, part IV, Florida Statutes, including powers and duties related to the regulation of construction activities in wetlands. The proposed activities are within the boundaries of the District. Background The objective of the All Aboard Florida Project is to establish express passenger train service connecting four large urban areas: Miami, Fort Lauderdale, West Palm Beach, and Orlando. Most of the passenger service route, including the portion which will pass through Martin County and St. Lucie County, will use an existing railroad right-of-way used since the late 1800s. The FECR rail corridor runs along Florida’s east coast from Miami to Jacksonville. It supported passenger and freight operations on shared double mainline tracks from 1895 to 1968. The passenger service was terminated in 1968 and portions of the double track and certain bridge structures were removed. The freight service continued and remains in operation today. The passenger service will use the FECR right-of-way from Miami to Cocoa and then turn west on a new segment to be constructed from Cocoa to Orlando. The railway corridor will be operated as a joint facility, with passenger and freight trains sharing the double mainline tracks. The Applicant is upgrading the portion of the corridor between Miami and Cocoa by, among other things, replacing existing railroad ties and tracks, reinstalling double mainline tracks, and improving grade crossings. The Applicant is also installing Positive Train Control systems which provide integrated command and control of passenger and freight train movements and allow the trains to be directed and stopped remotely or automatically in the event of operator error or disability, or an obstruction on the track. The All Aboard Florida Project is being developed in two phases, Phase I extends from Miami to West Palm Beach, and Phase II from West Palm Beach to Orlando. This proceeding involves a segment within Phase II, known as Segment D09, which runs from just north of West Palm Beach to the northern boundary of St. Lucie County. The railway corridor in Segment D09 passes through Jonathan Dickinson State Park in Martin County and the Savannas Preserve State Park, parts of which are in both Martin County and St. Lucie County. Surface waters within these state parks are Outstanding Florida Waters (“OFWs”). The railway in Segment D09 also passes over the St. Lucie River using a bridge that can be opened to allow boats to pass. The Applicant plans to run 16 round trips per day between Miami and Orlando, which is about one train an hour in each direction, starting early in the morning and continuing to mid-evening. In 2013, the District issued the Applicant an exemption under section 373.406(6), which exempts activities having only minimal or insignificant adverse impacts on water resources. The 2013 exemption covers proposed work in approximately 48 of the 65 miles which make up Segment D09, and includes replacement of existing tracks and re-establishment of a second set of mainline tracks where they were historically located. The 2013 exemption covers all but 24 of the roadway crossings within Segment D09 where work is to be done in connection with the All Aboard Florida Project. In 2015, the District issued the Applicant a general permit under rule 62-330.401, which authorizes activities that are expected to cause minimal adverse impacts to water resources, for the installation of fiber optic cable along the rail bed within Segment D09. The 2013 exemption and 2015 general permit were not challenged and became final agency action. The Proposed Agency Actions The ERP Modification covers work to be done in approximately 17 of the 65 miles which make up Segment D09. The work will consist primarily of replacing existing tracks, installing new tracks, making curve modifications in some locations to accommodate faster trains, culvert modifications, and work on some fixed bridge crossings over non-navigable waters. The 2017 Exemption at issue in this proceeding covers improvements to 23 of the 24 roadway crossings that were not covered by the 2013 exemption. Proposed improvements at Southeast Florida Street in Stuart will be permitted separately. The improvements covered by the 2017 Exemption include upgrading existing safety gates and signals; installing curbs, guardrails, and sidewalks; resurfacing some existing paved surfaces; and adding some new paving. Petitioners argue that, because the District’s staff report for the ERP Modification states that the ERP does not cover work at roadway crossings, track work at roadway crossings has not been authorized. However, the staff report was referring to the roadway improvements that are described in the 2017 Exemption. The proposed track work at the roadway crossings was described in the ERP application and was reviewed and authorized by the District in the ERP Modification. “Segmentation” Petitioners claim it was improper for the District to separately review and authorize the proposed activities covered by the 2013 exemption, the 2015 general permit, the ERP Modification, and the 2017 Exemption. Petitioners contend that, as a consequence of this “segmentation” of the project, the District approved “roads to nowhere,” by which Petitioners mean that these activities do not have independent functionality. Petitioners’ argument is based on section 1.5.2 of the Applicant’s Handbook, Volume 1,1/ which states that applications to construct phases of a project can only be considered when each phase can be constructed, operated, and maintained totally independent of future phases. However, the activities authorized by the four agency actions are not phases of a project. They are all parts of Phase II of the All Aboard Florida Project, which is the passenger railway from West Palm Beach to Orlando. Section 1.5.2 is not interpreted or applied by the District as a prohibition against separate review and approval of related activities when they qualify under the District’s rules for exemptions, general permits, and ERPs. Much of Phase II is outside the District’s geographic boundaries and, therefore, beyond its regulatory jurisdiction. The District can only review and regulate a portion of Phase II. The District is unable to review this portion as a stand-alone railway project that can function independently from other project parts. The Proposed Stormwater Management System Where the Applicant is replacing existing tracks or re- establishing a second set of tracks, it will be laying new ties, ballast, and rail on previously-compacted earth. In those areas, no stormwater management modifications were required by the District. The Applicant’s new proposed stormwater management system will be located in a five-mile area of the corridor where an existing siding will be shifted outward and used as a third track. In this area, swales with hardened weir discharge structures and skimmers will be installed to provide stormwater treatment beyond what currently exists. The weir discharge structures will serve to prevent erosion at discharge points. The skimmers will serve to capture any floating oils or refuse. Because the FECR right-of-way is not wide enough in some three-track areas to also accommodate swales, the proposed stormwater management system was oversized in other locations to provide compensating volume. The District determined that this solution was an accepted engineering practice for linear systems such as railroads. Petitioners argue that the Applicant’s proposed stormwater management system is deficient because some of the proposed swales do not meet the definition of “swale” in section 403.803(14) as having side slopes equal to or greater than three feet horizontal to one foot vertical (3:1). The statute first defines a swale to include a manmade trench which has “a top width-to-depth ratio of the cross-section equal to or greater than 6:1.” The swales used in the proposed stormwater management system meet this description. Petitioners showed that the plans for one of the 46 proposed swales included some construction outside the FECR right-of-way. In response, the Applicant submitted revised plan sheets to remove the swale at issue. The Emergency Access Way The ERP application includes proposed modifications to portions of an existing unpaved emergency access way which runs along the tracks in some areas. The access way is a private dirt road for railroad-related vehicles and is sometimes used for maintenance activities. At the final hearing, Petitioners identified an inconsistency between an application document which summarizes the extent of proposed new access way construction and the individual plan sheets that depict the construction. The Applicant resolved the inconsistency by correcting the construction summary document. Petitioners also identified an individual plan sheet showing proposed access way modifications to occur outside of the FECR right-of-way. This second issue was resolved by eliminating any proposed work outside the right-of-way. Petitioners believe the proposed work on the access way was not fully described and reviewed because Petitioners believe the access way will be made continuous. However, the access way is not continuous currently and the Applicant is not proposing to make it continuous. No District rule requires the access way segments to be connected as a condition for approval of the ERP. Water Quantity Impacts An applicant for an ERP must provide reasonable assurance that the construction, operation, and maintenance of a proposed project will not cause adverse water quantity impacts to receiving waters and adjacent lands, adverse flooding to on-site or off-site property, or adverse impacts to existing surface water storage and conveyance capabilities. The District’s design criterion to meet this requirement for water quantity management is a demonstration that the proposed stormwater system will capture the additional runoff caused during a 25-year/3-day storm event. The Applicant’s proposed stormwater system meets or exceeds this requirement. Petitioners argue that the Applicant failed to provide reasonable assurance because the ERP application materials did not include a calculation of the discharge rates and velocities for water discharging from the swales during the design storm. The ERP application contains the information required to calculate the discharge rates and velocities and the Applicant’s stormwater expert, Bruce McArthur, performed the calculations and testified at the final hearing that in the areas where there will be discharges, the discharge rates and velocities would be “minor” and would not cause adverse impacts. The District’s stormwater expert, Jesse Markle, shared this opinion. Petitioners argue that this information should have been provided to the District in the permit application, but this is a de novo proceeding where new evidence to establish reasonable assurances can be presented. Petitioners did not show that Mr. McArthur is wrong. Petitioners failed to prove that the proposed project will cause adverse water quantity impacts, flooding, or adverse impacts to surface water storage and conveyance capabilities. Water Quality Impacts To obtain an ERP, an applicant must provide reasonable assurance that the construction, operation, and maintenance of a regulated project will not adversely affect the quality of receiving waters, such that state water quality standards would be violated. The District’s design criteria for water quality required the Applicant to show that its proposed stormwater system will capture at least 0.5 inches of runoff over the developed area. To be conservative, the Applicant designed its proposed system to capture 1.0 inch of runoff in most areas. Under District rules, if a stormwater system will directly discharge to impaired waters or OFWs, an additional 50 percent of water quality treatment volume is required. The proposed stormwater system will not directly discharge to either impaired waters or OFWs. In some locations, there is the potential for stormwater discharged from the proposed stormwater system to reach OFWs by overland flow, after the stormwater has been treated for water quality purposes. The Applicant designed its proposed stormwater system to provide at least an additional 50 percent of water quality treatment volume in areas where this potential exists. To ensure that the proposed construction activities do not degrade adjacent wetlands, other surface waters, or off-site areas due to erosion and sedimentation, the Applicant prepared an Erosion and Sediment Control Plan. Temporary silt fences and turbidity barriers will be installed and maintained around the limits of the construction. The District’s design criteria for water quality do not require an analysis of individual contaminants that can be contained in stormwater, except in circumstances that do not apply to this project. Compliance with the design criteria creates a presumption that water quality standards for all potential contaminants are met. See Applicant’s Handbook, V. II, § 4.1.1. Although not required, the Applicant provided a loading analysis for the proposed swales which could potentially discharge overland to impaired waters or OFWs. The analysis compared pre- and post-development conditions and showed there would be a net reduction in pollutant loading. Petitioners believe the pollutant loading analysis was inadequate because it did not specifically test for arsenic and petroleum hydrocarbons. However, the analysis was not required and adequate treatment is presumed. Petitioners did not conduct their own analysis to show that water quality standards would be violated. Petitioners’ expert, Patrick Dayan, believes the compaction of previously undisturbed soils in the emergency access way would increase stormwater runoff. However, he did not calculate the difference between pre- and post-construction infiltration rates at any particular location. His opinion on this point was not persuasive. Petitioners failed to prove that the proposed project will generate stormwater that will adversely affect the quality of receiving waters such that state water quality standards would be violated. The preponderance of the evidence shows the project complies with District design criteria and will not cause water quality violations. Soil and Sediment Contamination Petitioners argue that the ERP Modification does not account for the disturbance of existing contaminants in soils and sediments that could be carried outside of the right-of-way and into OFWs. Petitioners’ argument is based on investigations by their geologist, Janet Peterson, who collected soil, sediment, and surface water samples at 13 sites along the FECR rail corridor in the vicinity of OFWs, or surface waters that eventually flow into OFWs. During her sampling visits, Ms. Peterson saw no visual evidence of an oil spill, fluid leak, or other release of hazardous materials. Ms. Peterson compared her soil sample results to the Residential Direct Exposure Soil Cleanup Target Levels (“SCTLs”) established in rule 62-777. The SCTLs are the levels at which toxicity becomes a human health concern and the residential SCTLs assume soil ingestion of 200 mg/day for children, and 100 mg/day for adults, 350 days a year, for 30 years. Some of the soil sampling results showed exceedances of SCTLs, but the SCTLs are not applicable here because none of the sample sites are locations where children or adults would be expected to ingest soil at such levels for such lengths of time. Petitioners did not show that the contaminants are likely to migrate to locations where such exposure would occur. Ms. Peterson compared her soil sample results to the Marine Surface Water Leachability SCTLs, but she did not develop site-specific leachability-based SCTLs using DEP’s approved methodology. Nor did she show that the proposed project will cause the soils to leach the contaminants. Ms. Peterson collected sediment samples from shorelines, but not where construction activities are proposed. She compared her sediment sample results to the Florida Department of Environmental Protection’s (“DEP”) Sediment Quality Assessment Guidelines (“SQAGs”). These guidelines are not water quality standards. Any exceedance of these guidelines requires further analysis to determine potential water quality impacts. Ms. Peterson did not conduct the analysis. Ms. Peterson acknowledged that there are numerous sources for these pollutants at or near her sample sites, such as high-traffic roads, vehicular bridges, commercial and industrial facilities, boatyards, and golf courses. She did not establish baselines or controls. Ms. Peterson collected surface water samples at seven sites, some of which were located outside the FECR right-of-way. The results showed levels of phosphorous and nitrogen above the criteria for nutrients at some locations. Phosphorous, nitrogen, and the other nutrients are prevalent in the waters of Martin County and St. Lucie County and come from many sources. Petitioners’ evidence focused on existing conditions and not expected impacts of the proposed project. The evidence was insufficient to prove the proposed project will cause or contribute to water quality violations. Functions Provided by Wetlands and Other Surface Waters An applicant for an ERP must provide reasonable assurance that a proposed project will not adversely impact the value of functions provided to fish and wildlife and listed species by wetlands and other surface waters. Petitioners claim the Applicant and District should not have relied on Florida Land Use Cover and Forms Classification System (“FLUCCS”) maps to identify and characterize wetlands and other habitat areas because the maps are too general and inaccurate. However, the FLUCCS maps were not used by the Applicant or District to evaluate impacts to wetlands or other habitats. The Applicant began its evaluation of impacts to wetlands and other habitat areas by field-flagging and surveying the wetland and surface water boundaries in the project area using a GPS device with sub-meter accuracy. It then digitized the GPS delineations and overlaid them with the limits of construction to evaluate anticipated direct impacts to wetlands and other surface waters. The District then verified the delineations and assessments in the field. The Applicant and District determined that there are a total of 4.71 acres of wetlands within the FECR right-of-way, including tidal mangroves, freshwater marsh, and wet prairie. They also determined the proposed project will directly impact 0.35 acres of wetlands, consisting of 0.09 acres of freshwater marsh and 0.26 acres of mangroves. Petitioners contend that the Applicant failed to account for all of the project’s wetland impacts, based on the wetland delineations made by their wetland expert, Andrew Woodruff. Most of the impacts that Mr. Woodruff believes were not accounted for are small, between 0.01 and 0.05 acres. The largest one is acres. The Applicant’s delineations are more reliable than Mr. Woodruff’s because the methodology employed by the Applicant had greater precision. It is more likely to be accurate. Petitioners argue that the 2013 exemption and the 2015 general permit did not authorize work in wetlands and, therefore, the impacts they cause must be evaluated in this ERP Modification. However, Petitioners did not prove that there are unaccounted-for wetland impacts associated with those authorizations. Any impacts associated with best management practices for erosion control, such as the installation of silt fences, would be temporary. The District does not include such temporary minor impacts in its direct, secondary, or cumulative impacts analyses. Most of the wetlands that would be directly impacted by the ERP Modification are degraded due to past hydrologic alterations and soil disturbances from the original construction and historical use of the FECR railway corridor, and infestation by exotic plant species. Most of these wetlands are also adjacent to disturbed uplands within or near the rail corridor. The functional values of most of the wetlands that would be affected have been reduced by these disturbances. The Applicant provided reasonable assurance that the project will not adversely impact the value of functions provided to fish and wildlife and listed species by wetlands and other surface waters. Secondary Impacts Section 10.2.7 of the Applicant’s Handbook requires an applicant to provide reasonable assurance that the secondary impacts from construction, alteration, and intended or reasonably expected uses of a proposed activity (a) will not cause or contribute to violations of water quality standards or adverse impacts to the functions of wetlands or other surface waters; (b) will not adversely impact the ecological value of uplands for bald eagles, and aquatic or wetland-dependent listed animal species for nesting or denning by these species; (c) will not cause impacts to significant historical or archaeological resources; and (d) additional phases for which plans have been submitted, and closely linked projects regulated under chapter 373, part IV, will not cause water quality violations or adverse impacts to the functions of wetlands or other surface waters. The proposed work will be entirely within the limits of the existing railway corridor where secondary impacts to wetlands and other surface waters caused by noise, vibration, fragmentation of habitats, and barriers to wildlife have existed for decades. The preponderance of the evidence shows that any increase in these kinds of impacts would be insignificant and would not reduce the current functions being provided. Because the affected wetlands are not preferred habitat for wetland-dependent, endangered, or threatened wildlife species, or species of special concern, and no such species were observed in the area, no adverse impacts to these species are expected to occur. Petitioners contend that adverse impacts will occur to the gopher tortoise, scrub jay, and prickly apple cactus. These are not aquatic or wetland-dependent species. However, the preponderance of the evidence shows any increase in impacts to these species would be insignificant. When the train bridges are closed, boats with masts or other components that make them too tall to pass under the train bridges must wait for the bridge to open before continuing. Petitioners contend that the current “stacking” of boats waiting for the bridges to open would worsen and would adversely impact seagrass beds and the West Indian Manatee. However, it was not shown that seagrass beds are in the areas where the boats are stacking. The available manatee mortality data does not show a link between boat stacking and boat collisions with manatees. Mr. Woodruff’s opinion about increased injuries to manatees caused by increased boat stacking was speculative and unpersuasive. The preponderance of the evidence shows that the adverse effects on both listed and non-listed wildlife species, caused by faster and more numerous trains would be insignificant. The activities associated with the 2013 exemption and the 2015 general permit for fiber optic cable were based on determinations that the activities would have minimal or insignificant adverse impacts on water resources. These determinations are not subject to challenge in this proceeding. The Applicant provided reasonable assurance that the secondary impacts of the project will not cause or contribute to violations of water quality standards, adversely impact the functions of wetlands or other surface waters, adversely impact the ecological value of uplands for use by listed animal species, or cause impacts to significant historical or archaeological resources. Elimination and Reduction of Impacts Under section 10.2.1.1 of the Applicant’s Handbook, if a proposed activity will result in adverse impacts to wetlands and other surface waters, the applicant for an ERP must implement practicable design modifications to eliminate or reduce the impacts, subject to certain exceptions that will be discussed below. Petitioners argue that this rule requires the Applicant and District to evaluate the practicability of alternative routes through the region, routes other than the existing railway corridor in Segment D09. As explained in the Conclusions of Law, that argument is rejected. The evaluation of project modifications to avoid impacts was appropriately confined to the railway corridor in Segment D09. The Applicant implemented practicable design modifications in the project area to reduce or eliminate impacts to wetlands and other surface waters. Those modifications included the shifting of track alignments, the elimination of certain third-track segments, and the elimination of some proposed access way modifications. However, the project qualified under both “opt out” criteria in section 10.2.1.2 of the Applicant’s Handbook so that design modifications to reduce or eliminate impacts were not required: (1) The ecological value of the functions provided by the area of wetland or surface water to be adversely affected is low, and the proposed mitigation will provide greater long-term ecological value; and (2) the applicant proposes mitigation that implements all or part of a plan that provides regional ecological value and provides greater long-term ecological value. Mitigation The Applicant proposes to mitigate for impacts to wetlands by purchasing mitigation credits from four District- approved mitigation banks: the Bluefield Ranch, Bear Point, Loxahatchee, and F.P.L. Everglades Mitigation Banks. Each is a regional off-site mitigation area which implements a detailed management plan and provides regional long-term ecological value. The number of mitigation credits needed to offset loss of function from impacts to wetlands was calculated using the Modified Wetland Rapid Assessment Procedure (“MWRAP”) or Wetland Assessment Technique for Environmental Review (“WATER”), as prescribed in the state permit for each mitigation bank. Applying these methods, the Applicant is required to purchase mitigation credits. The Applicant proposed to mitigate the adverse impacts to freshwater marsh wetlands by purchasing 0.01 freshwater herbaceous credits from the Bluefield Ranch Mitigation Bank, and 0.06 freshwater herbaceous credits from the Loxahatchee Mitigation Bank. The adverse impacts to tidal mangrove wetlands would be mitigated by purchasing 0.12 saltwater credits from the Bear Point Mitigation Bank, and 0.02 saltwater credits from the F.P.L. Everglades Mitigation Bank. The Applicant committed to purchase an additional 0.29 freshwater herbaceous credits from the Bluefield Ranch Mitigation Bank, for a total of 0.50 mitigation credits. The proposed mitigation implements a plan that will provide greater long-term ecological value than is provided by the wetlands that will be impacted. The Applicant proved by a preponderance of the evidence that the project complies with the District’s mitigation requirements. Cumulative Impacts To obtain an ERP, an applicant must provide reasonable assurance that a regulated activity will not result in unacceptable cumulative impacts to water resources. This assurance can be provided by proposing to fully mitigate the impacts within the same basin. However, when an applicant proposes mitigation in another drainage basin, the applicant must demonstrate that the regulated activity will not cause unacceptable cumulative impacts. The proposed project will adversely impact 0.02 acres of freshwater marsh wetlands and 0.21 acres of tidal mangrove wetlands in the St. Lucie River basin. The impacts to the freshwater marshes must be mitigated out-of-basin because there are no mitigation banks in the basin which offer freshwater herbaceous mitigation credits. The proposed project will adversely impact 0.07 acres of the freshwater marshes and 0.05 acres of the mangrove wetlands in the Loxahatchee River basin. Those impacts must also be mitigated out-of-basin because there are no mitigation banks in the Loxahatchee River basin. Because some of the Applicant’s proposed mitigation must be provided out-of-basin, the ERP application included a cumulative impact analysis. The analysis evaluated whether the proposed project, when considered in conjunction with other possible development within the St. Lucie River and Loxahatchee River drainage basins, would result in unacceptable cumulative impacts considering each basin as a whole. There are approximately 10,068 acres of freshwater marshes within the St. Lucie basin, of which an estimated 4,929 acres are not preserved and would be at risk of potential future development. The proposed project will adversely impact 0.02 of those acres, which is only 0.0004 percent of the total at-risk acreage. There are about 34,000 acres of freshwater marshes within the Loxahatchee River basin, of which an estimated 7,463 acres are at risk of future development, and approximately 564 acres of tidal mangrove wetlands, of which an estimated 75 acres are at risk of future development. The project will adversely impact 0.07 acres of the freshwater marshes (0.0009 percent), and 0.05 acres of the tidal mangrove wetlands (0.0667 percent). Petitioners contend the Applicant’s analysis did not account for impacts from proposed activities authorized in the 2013 and 2015 general permit. However, Petitioners failed to prove there are unaccounted-for wetland impacts. The preponderance of the evidence supports the District’s determination that the proposed project will not cause unacceptable cumulative impacts to wetlands and other surface waters. Public Interest When an applicant seeks authorization for a regulated activity in, on, or over wetlands or surface waters, it must provide reasonable assurance that the activity will not be contrary to the public interest, or if the activity is within or significantly degrades an OFW, is clearly in the public interest, as determined by balancing the following criteria set forth in section 373.414(1)(a): Whether the activities will adversely affect the public health, safety, or welfare or the property of others; Whether the activities will adversely affect the conservation of fish and wildlife, including endangered or threatened species, or their habitats; Whether the activities will adversely affect navigation or the flow of water or cause harmful erosion or shoaling; Whether the activities will adversely affect the fishing or recreational values or marine productivity in the vicinity of the activity; Whether the activities will be of a temporary or permanent nature; Whether the activities will adversely affect or will enhance significant historical and archaeological resources; and The current condition and relative value of functions being performed by areas affected by the proposed activities. The proposed work is not within an OFW, but entirely within the FECR corridor. The potential for overland flow and indirect impacts to OFWs is addressed by additional treatment of the stormwater prior to discharge. The proposed project would not significantly degrade an OFW. Therefore, the applicable inquiry is whether the project is contrary to the public interest. Factor 1: Public Safety, Safety, and Welfare Petitioners contend that the proposed project will adversely affect public health, safety, and welfare by impacting water quantity, water quality, and certain non-environmental matters such as emergency response times, traffic congestion, and potential train collisions with pedestrians and vehicles. Potential environmental impacts have been addressed above and, by a preponderance of the evidence, the District and the Applicant showed that such impacts would be insignificant or would be mitigated. As to the potential for non-environmental impacts associated with train operations, it is explained in the Conclusions of Law that the public interest test does not include consideration of non-environmental factors other than those expressly articulated in the statute, such as navigation and preservation of historical or archaeological resources. However, because evidence of non-environmental impacts was admitted at the final hearing, the issues raised by Petitioners will be briefly addressed below. The regulatory agency with specific responsibility for railroad safety is the Federal Railroad Administration (“FRA”). The FRA reviewed the safety features associated with the proposed passenger train operations, and approved them. Public safety will be enhanced at roadway crossings because of the proposed improvements and the use of modern technology in monitoring and managing the movement of trains. Petitioners contend that the addition of the passenger rail service will impede emergency response times in Martin County and St. Lucie County due to more frequent roadway closures. However, freight trains currently impede emergency response times due to their length and slow speed. The passenger trains will be much shorter in length and faster so that roadway crossing closures for passing passenger trains will be much shorter than for freight trains. The ERP Modification and 2017 Exemption do not affect freight train operations. The preponderance of the evidence shows that passenger rail service is unlikely to cause a material increase in the occurrence of circumstances where an emergency responder is impeded by a train. The current problem must be addressed through changes in freight train operations. Petitioners also contend that the passenger rail service will interfere with hurricane evacuation. The persuasive evidence does not support that contention. Train service would cease when a hurricane is approaching. Petitioners contend the trains will have to be “staged” on either side of the two moveable bridges while other trains cross, thereby blocking road intersections. However, this was a matter of speculation. The Applicant does not propose or want to stage trains at the bridges. Petitioners contend that the project will cause hazards to boaters on the St. Lucie River because there will be more times when the train bridge will be closed to allow the passage of passenger trains. Although there were many statistics presented about the number of boats affected, the evidence was largely anecdotal with respect to the current hazard associated with boaters waiting for the passage of freight trains and speculative as to the expected increase in the hazard if shorter and faster passenger trains are added. Factor 2: Conservation of Fish and Wildlife As previously found, the proposed activities will not adversely affect the conservation of fish and wildlife, including threatened or endangered species. The preponderance of the evidence shows the project will have only insignificant adverse impacts on water resources and wildlife. Factor 3: Navigation of the Flow of Water Petitioners claim the project will hinder navigation on the St. Lucie and Loxahatchee Rivers because of the increase in bridge closures if passenger trains are added. The U.S. Coast Guard is the agency with clear authority to regulate the opening and closing of moveable train bridges over navigable waters in the interests of navigation. Petitioners’ insistence that the District address the bridge openings is novel. No instance was identified by the parties where this District, any other water management district, or DEP has attempted through an ERP to dictate how frequently a railroad bridge must open to accommodate boat traffic. The Coast Guard is currently reviewing the project’s potential impacts on navigation and will make a determination about the operation of the moveable bridges. It has already made such a determination for the moveable bridge which crosses the New River in Ft. Lauderdale. Petitioners point to section 10.2.3.3 of the Applicant’s Handbook, which states that the District can consider an applicant’s Coast Guard permit, and suggest that this shows the District is not limited to what the Coast Guard has required. However, Section 10.2.3.3 explains the navigation criterion in terms of preventing encroachments into channels and improving channel markings, neither of which encompasses the regulation of train bridges. The preponderance of the evidence shows the project would not cause harmful erosion or shoaling or adversely affect the flow of water. Factor 4: Fishing, Recreational Values, and Marine Productivity The preponderance of the evidence shows that there would be no adverse impacts or only insignificant impacts to fishing or recreational values and marine productivity. Factor 5: Permanent Impact The proposed project will have both temporary and permanent impacts. The temporary impacts include the installation of silt fences and turbidity barriers designed to reduce water quality impacts and impacts to functions provided by wetlands and surface waters. The impacts due to track installation, construction and rehabilitation of the non-moveable bridges, at-grade crossing improvements, and stormwater system improvements are permanent in nature. The permanent impacts have been minimized and mitigated. Factor 6: Historical or Archaeological Resources Petitioners do not contend that the project will adversely affect significant historical or archaeological resources. Factor 7: Wetland Functions in Areas Affected Because the proposed work is within the limits of an existing railway corridor where impacts have been occurring for decades, and the majority of the wetlands to be affected are of a low to moderate quality, there would be only a small loss of functional values and that loss would be fully mitigated. Public Interest Summary When the seven public interest factors are considered and balanced, the proposed project is not contrary to the public interest. Even if Petitioners’ non-environmental issues are included, the project is not contrary to the public interest. Compliance With Other Permit Conditions The project is capable, based on accepted engineering and scientific principles, of performing and functioning as proposed. The Applicant demonstrated sufficient real property interests over the lands upon which project activities will be conducted. It obtained the required consent for proposed activities relating to bridge crossings over state-owned submerged lands. The Applicant provided reasonable assurance of compliance with all other applicable permit criteria. Exemption Verification for Roadway Crossings The Applicant’s ERP application included a mixture of activities which required an individual permit, as well as activities in roadway crossings which the Applicant claimed were exempt from permitting. Pursuant to section 5.5.3.4 of the Applicant’s Handbook, the Applicant requested a verification of exemption as to certain work to be done within 23 of those 24 roadway crossings. The District determined that the improvements for which an exemption was sought were exempt from permitting under rule 62-330.051(4)(c) for minor roadway safety construction, rule 62-330.051(4)(d) resurfacing of paved roads, and rule 62-330.051(10) for “construction, alteration, maintenance, removal or abandonment of recreational paths for pedestrians, bicycles, and golf carts.” The preponderance of the evidence shows the proposed work qualifies for exemption under these rules.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that the South Florida Water Management District enter a final order that: approves Environmental Resource Permit Modification No. 13-05321-P on the terms and conditions set forth in the District’s Corrected Proposed Amended Staff Report of May 11, 2017; and approves the Verification of Exemption dated March 31, 2017. DONE AND ENTERED this 29th day of September, 2017, in Tallahassee, Leon County, Florida. S BRAM D. E. CANTER Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 29th day of September, 2017.
The Issue This case involves a challenge to St. Johns River Water Management District’s (District or SJRWMD) intended issuance of an Environmental Resource Permit (ERP) granting the City's Application No. 4-127-97380-1, for the construction and operation of a surface water management system for a retrofit flood-relief project known as Drysdale Drive/Chapel Drive Drainage Improvements consisting of: excavation of the Drysdale Drive pond (Pond 1); improvement to the outfall at Sterling Lake; and the interconnection of Pond 1 and four existing drainage retention areas through a combination of pump stations and gravity outfalls (project or system). The issue is whether the applicant, the City of Deltona (City or Deltona), has provided reasonable assurance the system complies with the water quantity, environmental, and water quality criteria of the District’s ERP regulations set forth in Chapter 40C-4, Florida Administrative Code,1 and the Applicant’s Handbook: Management and Storage of Surface Waters (2005) (A.H.).2
Recommendation Based upon the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that the St. Johns River Water Management District enter a final order issuing to the City of Deltona an ERP granting the City's Application No. 4-127-97380-1, subject to the conditions set forth in the Technical Staff Report. DONE AND ENTERED this 17th day of March, 2006, in Tallahassee, Leon County, Florida. S J. LAWRENCE JOHNSTON Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 SUNCOM 278-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 17th day of March, 2006.
The Issue The issue is whether Respondent, Dames Point Workboats, LLC, is entitled to issuance of the Consolidated Environmental Resource Permit and Recommended Intent to Grant Sovereignty Submerged Lands Authorization, Permit No. 16-0345934-003-EI, as announced by Respondent, Department of Environmental Protection, in the Consolidated Notice of Intent to Issue Environmental Resource Permit and Lease to Use Sovereignty Submerged Lands issued on July 20, 2018, and subsequently amended on December 11, 2018.
Findings Of Fact The Parties Petitioner City is a consolidated municipality and county political subdivision of the State of Florida. The Project is located within the geographic boundary of the City. The City initiated this proceeding by filing its Verified Petition for Formal Administrative Hearing ("Petition") with DEP on August 17, 2018. Respondent Workboats is the applicant for the Project. Its business address is 5118 Heckscher Drive, Jacksonville, Florida 32226. Workboats' owner, Shafnacker, owns the property located upland of the sovereignty submerged lands on which the Project is proposed to be constructed and operated. Respondent DEP is the administrative agency of the State of Florida statutorily charged with, among other things, protecting Florida's water resources. As part of DEP's performance of these duties, it administers and enforces the provisions of chapter 373, part IV, Florida Statutes, and the rules adopted pursuant to those statutes. Pursuant to that authority, DEP determines whether to issue or deny applications for environmental resource permits. Pursuant to section 253.002, DEP also serves as staff to the Board of Trustees of the Internal Improvement Trust Fund ("Board of Trustees") and in that capacity, reviews and determines whether to issue or deny applications for sovereignty submerged lands leases. The Back Channel and Vicinity of the Project The Project is proposed to be located in the "Back Channel" area of the St. Johns River, directly across from Blount Island. The Back Channel, as a part of the St. Johns River, is classified as a Class III waterbody. It is not designated an Outstanding Florida Water, is not located within an Aquatic Preserve, and is not designated for Shellfish Propagation or Harvesting. The Back Channel is configured in the shape of an inverted "U" and runs between Blount Island and Heckscher Drive, from the southeast corner of Blount Island to the bridges located on the northwest side of Blount Island. It constitutes a portion of the historic main channel of the St. Johns River and was used for all vessel navigation in the river until the Dames Point Cut was dredged through a peninsula to the south, creating Blount Island and a new straight channel to the Atlantic Ocean. Most vessels, including large ships, use the Dames Point Cut for ingress into and egress from the St. Johns River. However, the Back Channel remains navigable and is used for recreational activities and some commercial and industrial navigation. A mix of residential, commercial, and industrial and land uses is located on the north shore of the Back Channel in the vicinity of the Project. These uses consist of approximately 90 single-family residences having docks, three fish camps/recreational marinas, two restaurants, and docking structures used for mooring inshore shrimping vessels. A docking facility owned by M & M Shrimp and used for mooring shrimping vessels is located on the Back Channel immediately to the west of the Project site. A residence owned by Wood is located on the Back Channel immediately east of the Project site. Four other residences are located immediately east of Wood's residence, and back up to the Back Channel. Most of the shoreline on which these residences are located consists of riprap; however, a small patch of salt marsh borders the shoreline on Wood's residential parcel. Although Blount Island is a heavy industrial port, its northern shoreline on the Back Channel, across from the proposed Project site, consists of relatively undisturbed salt marsh and trees. The northeastern shoreline of the Back Channel generally consists of salt marsh and riprap, with docks constructed along the shoreline. Two bridges connect Blount Island to the mainland a short distance west of the proposed Project. These bridges each have a clearance of approximately ten feet, so they cannot be cleared by large vessels. As a practical matter, this has the effect of limiting the size of vessels that use the Back Channel in the vicinity of the Project. The Back Channel west of the bridges to the southwestern tip of Blount Island is fronted by heavy industrial uses, and numerous multi-family residential and industrial docking facilities are located in this area. A slow speed, minimum wake zone for boat operations extends 300 feet out into the Back Channel from both the north and south shorelines. The Back Channel is approximately 1,340 feet wide at the point at which the Project is proposed to be constructed. The Proposed Project The proposed Project will be constructed and operated4/ as a commercial tugboat/work boats mooring and loading/ offloading facility. The Project is proposed to be constructed and operated on sovereignty submerged lands5/ and in surface waters subject to State of Florida regulatory jurisdiction. Therefore, an environmental resource permit and sovereignty submerged lands lease are required for construction and operation of the Project.6/ The Project will be located waterward of the mean high water line on sovereignty submerged lands adjacent to four upland waterfront parcels that are owned by Shafnacker. These lots are: Lot 6 (5100 Heckscher Drive, RE 159971 0000); Lot 7 (5110 Heckscher Drive, RE 159972 0000); Lot 8 (5118 Heckscher Drive, RE 159973 0000); and Lot 9 (5120 Heckscher Drive, RE 159974 0000). Collectively, these lots have approximately 425 feet of linear shoreline, as measured at the mean high water line, bordering the Back Channel. This shoreline is comprised of salt marsh and riprap. A substantial portion of lots 6, 7, and 8 consists of salt marsh wetlands. No structures are proposed to be constructed on Lot 6. The salt marsh areas on lots 7 and 8 are traversed by existing pile-supported piers/access docks. To the extent they are replaced, such replacement will be by like-for- like structures, so there will be no new impact to the salt marsh wetlands on these lots. Most of Lot 9 consists of upland, some of which is authorized to be refilled under the Consolidated Authorization. A small wetland area consisting of approximately 18 square feet of salt marsh will be crossed by a new dock, but will not be filled or otherwise physically impacted. Dock A is proposed to be located on sovereignty submerged lands waterward of Lot 7, and will consist of a 15.4-foot-long by 8-foot-wide extension added to the waterward end of an existing 150.8-foot-long by 8-foot-wide wooden dock, plus a 4-foot-long gangway attached to the waterward end of the extension, which will connect to a 100-foot-long by 9.5-foot wide concrete floating dock. Dock B is proposed to be located on sovereignty submerged lands waterward of Lot 8, and will consist of a 40-foot-long by 10.3-foot-wide concrete floating dock with an 18-foot-long by 6-foot-wide platform, and a 4-foot-long gangway attached to an existing 125.2-foot-long by 5-foot-wide wooden dock. Dock C is proposed to be located on Lot 9, and will consist of a new inverted-L-shaped dock consisting of a 71-foot- long by four-foot wide pile-supported finger dock extending perpendicular to the shoreline into the Lease area, and a 26-foot long by 4-foot-wide dock running roughly parallel to the shoreline that will be constructed outside of the Lease area. Four wooden pilings also are proposed to be installed waterward of Lot 9. Three of these pilings will be located along the eastern boundary of the Lease, and the piling closest to the shoreline of Lot 9 will be located outside of the Lease area. All of these pilings will be set back 25 feet from Workboats' eastern riparian rights line. The newly constructed piling-supported dock additions to docks A and B, and new Dock C, will be elevated four feet above the marsh and will be constructed by hand-laying planks from the shoreline outward into the water, using the previously- laid planks as support while laying the new planks. Three three-pile mooring dolphins also are proposed as part of the Project. They will be installed within the Lease area, set back 38 feet from the southern boundary. No dredging is proposed or authorized for the Project. The Lease will be issued for a term of ten years and will preempt approximately 49,746 square feet of sovereignty submerged lands. The western boundary of the Lease is located 25 feet east of the upland property's western riparian rights line, and the eastern boundary of the Lease is located 25 feet west of the upland property's eastern riparian rights line. With the exception of a portion of Dock C and one wood piling that will be constructed on submerged land owned by Shafnacker,7/ all other structures proposed as part of the Project will be constructed within the boundaries of the Lease, and all vessel mooring and over-water operational activities authorized as part of the Project will occur within the Lease area. The Consolidated Authorization authorizes the placement of approximately 3,500 square feet of fill landward of the mean high water line and the jurisdictional wetland line, to replace historic fill eroded by hurricanes in 2017. Additionally, as a condition of the Consolidated Authorization, Workboats is required to restore approximately 250 square feet of salt marsh cord grass waterward of the mean high water line on Lot 9 as corrective action for unauthorized filling/destruction of salt marsh wetlands. As noted above, when constructed, the Project will operate as a tugboat/work boats mooring and loading/unloading facility. Workboats owns a fleet of approximately 40 vessels, comprised of barges, tow/push boats, and work boats, which are used to provide a range of marine services to third parties, including the transport/delivery of food and other supplies; artificial reef placement; marine demolition; and pile driving. These vessels will be moored at the docks, mooring dolphins, and mooring piles comprising the Project.8/ Of these 40 vessels, 28 are barges that range from ten to 130 feet in length, and have drafts ranging from 1.5 to 7.5 feet deep. The remaining 12 vessels are boats that range from 14 to 46.2 feet in length, and have drafts ranging from one foot to 6.8 feet deep. The water depths within the Lease area range from one tenth of one foot immediately adjacent to the shoreline, to between 39.5 and 43.5 feet deep at mean low water at the southern boundary of the Lease. Only one or two of the smaller boats in Workboats' fleet have drafts that are shallow enough to enable them to moor on the shoreward sides of Docks A and B. In any event, all vessels must moor in areas within the Lease area having depths at mean low water sufficient to ensure that they do not come into contact with submerged resources. To that end, a condition is included in the Consolidated Authorization requiring a minimum 12-inch clearance between the deepest draft of a vessel with the motor in the "down" position and the top of submerged resources at mean low water. The parties stipulated, and Shafnacker testified, that with the exception of the 32-foot-long Marlin Barge and the 10- foot-long Galligan barges, all other barges in Workboats' fleet will moor at the three-pile dolphins near the southern boundary of the Lease. Some barges will be anchored to the substrate by spuds, and the condition requiring 12 inches of clearance between the vessel bottom and the top of submerged resources would not apply to the spuds themselves. The parties stipulated, and Shafnacker testified, that Workboats will only load vessels from Dock B, which is appurtenant to Lot 8, and that the only equipment that will be used to load vessels will be equipment small and light enough to traverse Dock B——specifically, a Takeuchi mini-excavator, small forklift, or similarly-sized equipment. These limitations regarding the loading of vessels within the Lease area are not currently included as conditions of the Consolidated Authorization. Based on the parties' stipulation and competent substantial evidence in the record, conditions should be added to the Consolidated Authorization expressly limiting the loading of vessels in the Lease area to occurring only on Dock B, and limiting the type of equipment used for vessel loading and unloading to forklifts, mini-excavators, or similar light equipment. Shafnacker testified that the only other work that may be performed within the Lease area would consist of certain minor maintenance activities on Workboats' vessels; these minor repair activities include non-routine paint touchups and handrail painting, minor cable and winch repairs, and minor steel-rod (non-lead) welding. DEP Review and Approval of the Project Workboats filed a Joint Application for Individual Environmental Resource Permit/Authorization to Use State-Owned Submerged Lands/Federal Dredge and Fill Permit ("Application") on or about June 15, 2018. The Application was determined to be complete. DEP staff reviewed the Application and determined that the Project, as proposed, met the applicable statutory standards and rule requirements for issuance of the Consolidated Authorization. DEP issued the Consolidated Notice of Intent on or about July 20, 2018, proposing to issue the environmental resource permit and Lease for the Project. The Application, Consolidated Notice of Intent, and Consolidated Authorization were admitted into evidence at the final hearing. Compliance with Rule 62-330.301 For Workboats to be entitled to issuance of the environmental resource permit for the Project, it must provide reasonable assurance9/ that the Project meets the requirements of rule 62-330.301.10/ Water Quantity, Storage, Conveyance, and Flooding Impacts The entire Project, as proposed, will be constructed waterward of the mean high water line and will consist of mooring piles, piling-supported docks, and floating docks. These structures will not affect, impound, store, divert, or impede the amount or flow of surface water. The evidence demonstrated that the Project, if constructed and operated as proposed, will not cause adverse water quantity impacts to receiving waters and adjacent lands; will not cause adverse flooding to on-site or off-site property; and will not cause adverse impacts to existing surface water storage and conveyance capabilities. Impacts to Value of Functions Provided to Fish, Wildlife, Listed Species, and Habitat Two types of habitat exist at the Project site: salt marsh and submerged benthic habitat. The evidence established that the salt marsh at the Project site is healthy, high-quality, high-functioning salt marsh habitat. Among the functions the salt marsh provides are preservation and improvement of water quality by filtering runoff, serving as a nursery for fish species, preventing shoreline erosion, and forming the base of the estuarine food chain. The salt marsh, in combination with existing riprap at the edge of the salt marsh, forms a "living shoreline" at the Project site that helps protect the shoreline from erosion and scouring due to wave action. This living shoreline is not being removed or otherwise affected, and will remain in place at the Project site. The submerged benthic sediment at the Project site consists of high organic silts and a sand base. The evidence established that the benthic sediment provides habitat for infauna, such as polychaete worms; and for epifauna, such as shrimp, crabs, and mollusks. No submerged aquatic vegetation or oyster bars were found at the Project site. Docks A and B consist of extensions that will be added to two existing docks that previously were constructed through the salt marsh. These extensions will be constructed four feet above the marsh floor to reduce shading, using minimally- impactful construction techniques, discussed above, to help avoid and minimize construction impacts to the marsh. The floating components of docks A and B will not have any impact on the salt marsh habitat. Dock C will be constructed waterward of Lot 9, across a very small section of salt marsh grass. It also will be elevated four feet above the marsh floor to reduce shading, and will be constructed using the same minimally-impactful technique, to avoid and minimize impacts to the marsh. Because Dock C will have only de minimis impacts on the salt marsh, no mitigation has been required. The Consolidated Authorization contains conditions requiring Workboats to avoid impacts to emergent grasses during construction and operation of the Project, and prohibiting Workboats from storing or stockpiling tools, equipment, materials, and debris within wetlands. These conditions will help ensure that the Project will have only minimal impacts on the salt marsh habitat at the Project site. The Consolidated Authorization contains a specific condition requiring maintenance of a minimum 12-inch clearance between the deepest draft of the vessel, with the motor in the down position, and the top of submerged resources for all vessels that will use the docking facility. Additionally, the construction of mooring areas over submerged grass beds is prohibited. These conditions will help protect benthic habitat at the Project site. The Florida Manatee is the only listed species that inhabits the Project site. Video evidence presented by the City showed manatees present at, and in the vicinity of, the Project site. The Project is located in an area designated, in the most recent Duval County Manatee Protection Plan (November 2017) ("MPP"), as "preferred" for boat facility siting. Boating facilities located in designated "preferred" areas generally do not have any limits on the number of slips at the facility. "Preferred" boat facility siting areas were designated in the MPP based on many factors, including manatee abundance, presence of manatee feeding habitat, proximity to boating destinations, manatee mortality in the area, existing boating slip numbers and locations, boating facility type and number, and existence of speed zones. To protect manatees in the Back Channel, the Florida Fish and Wildlife Conservation Commission ("FWC") has, by rule, established a slow speed, minimum wake zone extending 300 feet from the shorelines into the Back Channel. A slow speed, minimum wake zone means that a vessel must be fully off-plane and completely settled into the water, proceeding at a speed which is reasonable and prudent under the prevailing circumstances so as to avoid the creation of an excessive wake or other hazardous condition which endangers or is likely to endanger other persons using the waterway.11/ Fla. Admin. Code R. 68C-22.02(4). The existence and enforcement of this speed zone will help protect manatees in the Back Channel. Conditions also have been included in the Consolidated Authorization to help protect manatees from impacts from the Project. As previously discussed, for each vessel, a minimum 12-inch clearance between the deepest draft with the motor down, and the top of the submerged resources at mean low water, must be maintained. This condition will help ensure that manatees do not become trapped under or crushed by a vessel while moored in the Lease area. Additionally, bumpers or fenders must be installed and maintained to provide at least three feet of separation between moored vessels and between the docks/mooring piles and vessels, to help prevent trapping or crushing of manatees. The Consolidated Authorization also requires the Project to be constructed and operated in accordance with the Standard Manatee Conditions for In-Water Work. These conditions include: instructing all personnel, including construction personnel, about the presence of manatees and manatee speed zones, and the need to avoid collisions with and injury to manatees, as well as about civil and criminal penalties imposed for harming, harassing, or killing manatees; operating all vessels associated with construction of the Project at "idle speed/no wake" at all times in the vicinity of the Project and where the draft of the vessel provides less than a four-foot clearance from the bottom; the requirement that all in-water operations, including vessels, must shut down if a manatee comes within 50 feet of the operation and cannot resume until the manatee either moves beyond the 50-foot radius of the operation or 30 minutes has elapsed and the manatee has not reappeared within 50 feet of the operation; the installation of specified temporary signage; and the installation of specified permanent signage. The inclusion of these conditions in the Consolidated Authorization provides reasonable assurance that the construction and operation of the Project will not adversely affect the value of functions provided to fish, wildlife, or listed species and their habitats. Water Quality Impacts As previously noted, the St. Johns River, including the Back Channel, is a Class III waterbody. Accordingly, the surface water quality standards and criteria applicable to Class III waters in Florida codified in Florida Administrative Code Rule 62-302.300 apply to the Back Channel. The Back Channel portion of the St. Johns River has been identified as impaired for lead, pursuant to Florida Administrative Code Chapter 62-303. The credible, persuasive evidence demonstrates that the Project, if constructed and operated in accordance with the conditions currently included in the Consolidated Authorization along with additional conditions discussed below, will not cause or contribute to water quality violations. Specifically, the Project will be required to install and maintain turbidity barriers during the construction phase to help ensure that any sediment disturbed during construction does not cause or contribute to water quality violations. Additionally, as discussed above, a minimum 12-inch clearance between the deepest draft of each vessel, with the motor down, and the top of the submerged resources at mean low water must be maintained. This will help prevent the suspension of sediments, and any constituents in those sediments, from being suspended in the water column and causing or contributing to water quality violations, as a result of the Project. The Consolidated Authorization also prohibits the storage or stockpiling of tools, equipment, materials, such as lumber, pilings, riprap, and debris within wetlands or other waters of the state; prohibits the discharge of construction debris into waters of the state; prohibits the overboard discharge of trash, human or animal waste and fuel at the docks; and requires all work to be done in periods of average or low water, so that impacts to submerged resources, including bottom sediment, can be avoided. Collectively, these conditions help provide reasonable assurance that the construction and operation of the Project, including the mooring and operation of vessels in the Lease area, will not violate water quality standards. White testified that, generally, the water quality in, and in the vicinity, of marinas degrades over time due to the discharge of oils, greases, and other waste; and the suspension in the water column of sediments and toxins, pesticides, herbicides, and heavy metals in those sediments, as a result of propeller dredging. However, Irwin testified that because the Project site is located in a tidally-influenced area, with an approximate 3.5-foot tide range over multiple tide changes per day, the Project site will be adequately flushed such that there will not be an accumulation of pollutants that may violate water quality standards. Based on Irwin's persuasive testimony, it is determined that water quality violations will not occur due to an accumulation of pollutants at the Project site. To further ensure that the Project will not degrade water quality or violate water quality standards at the Project site, the Consolidated Authorization requires Workboats to submit a facility management plan to address maintenance and unexpected spills of fuels and other pollutants. The facility management plan must include a spill response plan for fuel spills; a plan for maintenance of gray water collection systems and return systems, to the extent applicable; a plan addressing garbage collection and vessel cleaning systems to prevent disposal of waste in wetlands; and an education plan for all employees at the Project regarding fueling, sewage and gray water pump operations, waste management, and facility maintenance. Sewage pump-out facilities are not proposed as part of the Project. Shafnacker testified, and the Consolidated Authorization, Project Description section currently states, that domestic waste from boat heads will be handled through use of a waterless incinerating toilet (Incinolet or similar), and the remaining ash shall not be disposed of in waters of the state. However, it is noted that this requirement is not currently included as an enforceable condition. The undersigned finds that a specific condition expressly prohibiting any sewage pump-out at the docks or on vessels, requiring the use of an incinerator toilet, and prohibiting the discharged of ash waste should be included in the Consolidated Authorization to provide reasonable assurance that the Project will not violate water quality standards due to the discharge of sewage into waters of the state. The Consolidated Authorization, Project Description section, states: This permit does not authorize the installation and use of fueling equipment at the Dock; the discharge of waste into the water; liveaboards; fish cleaning or the installation of fish cleaning stations; repair and maintenance activities involving scraping, sanding, stripping, recoating, and other activities that may degrade water quality or release pollutants into Waters of the State. Major repair, reconstruction, and/or other service must be performed at a facility approved for vessel haul-out and repair. This does not preclude the light maintenance allowed under Specific Condition 18 to be performed at the facility. This language, which expressly identifies numerous activities that are prohibited in connection with the operation of the Project, is not currently included as an enforceable condition in the Consolidated Authorization. The undersigned determines that in order to protect water quality at the Project site, this language must be included as a specific condition in the Consolidated Authorization. As previously noted above, the Back Channel is impaired for lead. Both Irwin and Hallett testified that Workboats would not use lead paint or lead-containing welding equipment on the docks or vessels moored in the Lease area. To provide reasonable assurance that the Project will not constitute a source of lead that will contribute to the impaired status of the Back Channel, a specific condition prohibiting the use of lead-based paints and other sources of lead should be included as an enforceable condition in the Consolidated Authorization. Based on the foregoing, the undersigned finds that, with the addition of the conditions discussed in paragraphs 68, 69, and 70 above, Workboats has provided reasonable assurance that applicable water quality standards will not be violated as a result of construction or operation of the Project. Adverse Secondary Impacts to Water Resources Secondary impacts are impacts caused by other relevant activities very closely linked or causally related to the activity itself, rather than the direct impacts of the proposed activity itself.12/ The conditions currently included in the Consolidated Authorization, along with the conditions addressed in paragraphs 68, 69, and 70 above, provide reasonable assurance that the Project will not cause adverse secondary impacts to water quality. Additionally, the Project will not cause adverse secondary impacts to the functions of wetlands and surface waters, aquatic or wetland-dependent species, or listed species. As discussed above, the salt marsh habitat will not be disturbed during construction and operation of the Project, and the benthic habitat will be protected by the minimum 12-inch vessel to the top of submerged resource clearance requirement discussed above. These Project features and conditions will help ensure that there are no adverse impacts to wetland functions and to aquatic or wetland-dependent species, such as fish and benthic fauna. Additionally, the Project will be located within a slow speed, minimum wake zone, and Workboats will be required to operate all of its vessels in compliance with that standard within the 300-foot buffer along the shorelines of the Back Channel. This operational constraint, along with additional manatee protection conditions discussed above, provide reasonable assurance that the Project will not cause adverse secondary impacts to manatees. Based on the foregoing, it is determined that, with the addition of the conditions addressed in paragraphs 68, 69, and 70, above, Workboats has provided reasonable assurance that the Project will not have adverse secondary impacts to the water resources. Impacts to Ground and Surface Water Levels and Surface Water Flows As discussed above, the Project will be constructed waterward of the mean high water line, and will consist of piling-supported and floating docks and mooring piles that will not adversely impact the maintenance of minimum surface or ground water levels or surface water flows at the Project site. Impacts to Works of the District The Project is not proximate to any works of the district, as approved pursuant to section 373.086; accordingly, it will not cause adverse impacts to such works. Capable of Performing and Functioning as Designed The Project was designed by an engineer and will be installed by Shafnacker, who is an experienced marine contractor. The Consolidated Authorization requires that the Project must be implemented in accordance with the approved plans, specifications, and performance criteria. Within 30 days of completion of construction of the Project, Workboats must submit an as-built survey, signed and sealed by a Florida licensed Surveyor and Mapper in accordance with Florida Administrative Code Chapter 61G17-7, depicting the boundaries of the Lease, and showing the size and dimensions of all existing overwater structures and activities within the Lease area. Additionally, the surveyor must provide a statement that all of the depicted structures and activities are located within the Lease area; or identify, and depict on an as-built survey, any structures or activities outside of the Lease area. These requirements will ensure that the Project performs and functions as designed. Financial, Legal, and Administrative Capability Rule 62-330.301(1)(j) requires an applicant for an environmental resource permit to provide reasonable assurance that the project will be conducted with a person having the financial, legal, and administrative capability to ensure that the activity will be undertaken in accordance with the terms and conditions of the permit.13/ The Environmental Resource Permit Applicant's Handbook, Volume I (General and Environmental) ("Handbook"), section 1.5.1., which provides further guidance regarding compliance with the requirement in rule 62-330.301(1)(j), states that "[c]ompliance with this requirement must be demonstrated through subsections 62-330.060(3) and (4), the certification required in the Application Form 62-330.060(1), and section 12.0 of the Handbook." As part of the Application, Workboats submitted copies of warranty deeds for lots 6, 7, and 8, and Disclaimer No. 22146 for Lot 9. These documents establish that Shafnacker holds title to the uplands on lots 6 through 9 and to certain submerged lands waterward of Lot 9. Pursuant to Handbook section 4.2.3, these documents satisfy the "sufficient upland interest" requirement in rules 62.330.060(3) and 62- 330.301(1)(j). Rule 62-330.060(3) also requires the applicant and/or the applicant's agent to sign specific parts of the application. Here, Workboats, and Shafnacker, as Workboats' agent, signed the pertinent portions of the Application, as required by this rule. Rule 62-330.060(4) and pertinent provisions of section 12.0 of the Handbook——specifically, provisions in sections 12.1 and 12.2——require that once construction of the permitted activity is complete, it must be converted to the operational phase by submitting an as-built certification and request for conversion to operational phase. Here, the Consolidated Authorization for the Project requires submittal of this form, once construction is complete, as a condition for operation of the Project. These are the only rules and Handbook provisions regarding demonstration of financial, legal, and administrative capability that are pertinent to the Project. No other environmental resource permitting rules or Handbook provisions impose any other requirements regarding financial capability, and the City has not identified any case law or other statutes or rules imposing additional pertinent financial capability requirements. Thus, the evidence establishes that Workboats meets rule 62-330.301(1)(j) and all other pertinent rules and Handbook requirements, showing it has the financial, legal, and administrative capability to ensure the Project will be undertaken in accordance with the terms and conditions of the Consolidated Authorization. The City did not present any evidence to show that Workboats lacks the financial, legal, and administrative capability to undertake the Project as permitted. Compliance with Rule 62-330.302 For Workboats to be entitled to issuance of the environmental resource permit for the Project, it also must provide reasonable assurance that the Project meets the requirements of rule 62-330.302,14/ which establishes additional standards for issuance of environmental resource permits for activities in surface waters or wetlands. Adverse Effects to Public Health, Safety, or Welfare, or Property of Others In determining whether a proposed activity in surface waters or wetlands would adversely affect the public health, safety, or welfare, or the property of others, the focus is on environmental hazards or injuries that may result from the proposed activity.15/ Thus, alleged threats to personal safety and enjoyment of neighboring property resulting from alleged unlawful activities on the upland areas of lots 6, 7, and 916/—— which are not part of the Project——are not appropriately considered as part of the public interest determination under rule 62-330.302. As discussed above, the Consolidated Authorization contains conditions aimed at ensuring that water quality is not degraded and water quality standards are not violated due to the Project. These conditions, along with conditions addressed in paragraphs 68, 69, and 70, above, provide reasonable assurance that the public health, safety and welfare, and property of others will not be adversely affected as a result of water quality degradation or violations. The Project, as designed and approved, will have 25-foot setbacks from the eastern and western riparian rights lines for lots 6 through 9. These setbacks will help ensure that the construction and operation of the Project will not interfere with the adjoining properties' riparian rights. The City presented the testimony of O'Connor, who opined that some of Workboats' vessels, operated at full throttle, were capable of generating a wake as high as three feet. O'Connor testified that a wake of this height could damage docks along the shoreline of the Back Channel, cause shoreline erosion, and create a safety hazard for recreational boaters, kayakers, and others engaged in in-water recreational activities. As discussed above, the Back Channel is approximately 1,300 feet wide at the Project site. Per the location map provided as part of the specific purpose survey, the portion of the Back Channel east of the Project site is at least this wide for its entire length. Shafnacker testified, credibly, that his vessels typically operate closer to the Blount Island shoreline than the northern shoreline of the Back Channel, so are approximately 800 feet away from the northern shoreline where the residential docks and access points for boaters, kayakers, and other recreational uses are located. Additionally, Shafnacker credibly testified that Workboats' boats and barges would be operated at speeds such that the highest wake that any of his vessels would generate is two feet. Based on the foregoing, and with the inclusion in the Consolidated Authorization of the conditions addressed in paragraphs 68, 69, and 70, above, Workboats has provided reasonable assurance that the Project will not adversely affect the public health, safety, welfare, and property of others. Adverse Effects to Conservation of Fish, Wildlife, Listed Species, and their Habitats As previously discussed, the Consolidated Authorization requires Workboats to avoid impacts to emergent grasses during construction and operation of the Project, and prohibits Workboats from storing or stockpiling tools, equipment, materials, and debris within wetlands. These conditions will help ensure that the Project will have minimal impact on the salt marsh habitat at the Project site. The Consolidated Authorization also contains a condition prohibiting the construction of mooring areas over submerged grass beds. This, along with the condition requiring a minimum 12-inch clearance between vessel bottom and submerged resources, will help protect the benthic habitat at the Project site. Additionally, the Consolidated Authorization imposes conditions to protect manatees from impacts due to the Project. Specifically, bumpers or fenders must be installed and maintained to provide at least three feet of separation between docks or mooring piles and vessels, and between vessels, and a minimum 12-inch clearance between the deepest draft of the vessel and the top of the submerged resources at mean low water must be maintained. The Project also must be constructed and operated in accordance with the FWC's Standard Manatee Conditions for In-Water Work, which imposes construction and operational requirements to protect manatees for the life of the Project. The inclusion of these conditions in the Consolidated Authorization provides reasonable assurance that the Project will not adversely affect the conservation of fish and wildlife, including threatened species and their habitats. Adverse Effects to Navigation, Flow of Water, or Shoaling The Back Channel is navigable, and is over 1,300 feet wide at the point at which the Project is proposed to be located. It is used by a mix of recreational vessels and commercial and industrial vessels, although, as noted above, the low-clearance bridges on the western end of Blount Island effectively limit the commercial and industrial traffic to smaller-sized vessels. As depicted on the specific purpose survey submitted as part of the Application, the southern boundary of the Lease extends waterward approximately 196 feet from the shoreline at the eastern boundary of the Lease, and approximately 174 feet from the shoreline at the western boundary of the Lease. Thus, at its most waterward point, the preempted area of the Lease will extend waterward approximately 14 percent of the width of the Back Channel.17/ The specific purpose survey shows docks A and C extending waterward approximately 60 feet from the shoreline, and shows Dock B extending waterward approximately 45 feet from the shoreline.18/ The three three-pile dolphins, which will be used to moor the largest barges, will be set back approximately 38 feet from the southern boundary of the Lease. Shafnacker testified that barges moored at the three-pile mooring dolphins will be tied between the dolphins, by ropes at their bows and sterns, to ensure that they do not drift out of the Lease area and create a navigational hazard. The Consolidated Authorization contains a condition requiring the waterward ends of the docks and the mooring dolphins to be marked by reflectors so as to be visible from the water at night by reflected light. However, at the hearing, Shafnacker testified that he intended to mark the dolphins and barges with solar battery-powered lights so that they would be more visible at night than if only reflectors are used. Based on this testimony, it is recommended that Specific Condition No. 13 in the Consolidated Authorization be modified to require the barges and mooring dolphins to be marked by lights, as well as reflectors, to make them more visible from the water. Based on the foregoing, it is determined that the Project, as proposed, will not adversely impact navigation in the Back Channel. Specifically, the Lease will not extend a significant distance out into the Back Channel; approximately 86 percent of the width of the Back Channel at the Project site remains open for navigation by the public. Additionally, the docks will be located relatively close to the shoreline, well within the Lease preempted area, and will be marked so that they are visible from the water. The mooring dolphins also will be set back a substantial distance from the Lease boundary and will be marked so as to be visible from the water. The evidence shows that the Project will not have any adverse effects on the flow of water. As discussed above, the Project will not impede, impound, or otherwise affect the flow of water. The evidence also shows that the Project will not cause harmful shoaling or erosion. No dredging or placement of dredged spoil is proposed or authorized as part of the project, and the Consolidated Authorization requires Workboats to use silt fencing and other specified best management practices to stabilize the sediment and prevent erosion and shoaling during construction of the Project. For these reasons, it is determined that the Project will not adversely impact navigation in the Back Channel, will not adversely affect the flow of water, and will not result in harmful shoaling or erosion. Adverse Effects to Fishing, Recreational Values, or Marine Productivity The Back Channel is a meander of the St. Johns River that no longer is used as the main navigational channel for the river. Thus, it is relatively calm and is extensively used for boating, kayaking, swimming, fishing, jet skiing, and other in- water recreational activities. The evidence establishes that the Project will not adversely affect fishing, recreational values, or marine productivity in the vicinity. The salt marsh habitat in the vicinity of the Project, which serves as the base of the estuarine food chain and as a nursery and refuge for small fish, will not be disturbed during construction of the Project. As such, the Project will not adversely affect fish habitat or marine productivity. Additionally, because the Project will be constructed within the boundaries of the Lease and set back 25 feet from the riparian lines for the adjoining properties, it will not physically interfere with or displace fishing activities from those properties, or from any other property in the vicinity. The Consolidated Authorization imposes conditions to protect water quality during construction and operation of the Project. These conditions, and the additional conditions, discussed in paragraphs 68, 69, and 70, above, will protect water quality, and therefore help protect fish habitat and marine productivity. The credible evidence establishes that vessel operation associated with the Project will not adversely affect boating, kayaking, fishing, or other recreational activities in the vicinity. As discussed above, the Project is located in a slow speed, minimum wake zone that extends 300 feet from the shoreline into the Back Channel, and all vessels traversing into and out of the Lease area must operate at this speed until they are beyond 300 feet from the shorelines. Additionally, Shafnacker credibly testified that once out of the 300-foot slow speed, minimum wake zone, the vessels will operate at speeds such that they will generate a wake of two feet, at most. The evidence showed that wakes of this height are not anticipated to adversely affect recreational activities in the Back Channel. Temporary or Permanent Activity The Project will be permanent. However, the evidence establishes that there are numerous permanent docking facilities along the northern shoreline of the Back Channel, so the Project is not unique in that regard. Adverse Impacts to Significant Historical or Archaeological Resources The Department of State, Division of Historical Resources ("DHR"), did not provide any comments indicating that significant historical or archaeological resources are anticipated to be present at the Project site, and no evidence was presented showing that the Project would have any adverse impacts to such resources. As a precaution, the Consolidated Authorization contains a specific condition requiring Workboats to immediately cease all activities involving subsurface disturbance and to contact DHR if any prehistoric or historic artifacts, such as pottery or ceramics, project points, dugout canoes, metal implements, historic building materials, or any other physical remains that could be associated with Native American, early European, or American settlements are encountered at any time within the Project site. Accordingly, it is determined that the Project will not adversely affect significant historical or archaeological resources. Current Condition and Relative Value of Functions The salt marsh wetlands in the vicinity of the Project are healthy, high-functioning, and part of a "living shoreline" that will not be disturbed by construction or operation of the Project. Although Dock C will be constructed across a very small patch of salt marsh, it will be elevated to reduce shading and will be constructed using minimally-impactful construction techniques. Any impacts to the salt marsh from the Project will be de minimis. The Project is also not anticipated to adversely affect the condition and relative value of the benthic habitat on the Project site. As discussed above, the Consolidated Authorization imposes a minimum 12-inch clearance from vessel bottom to top of submerged resources requirement, which will help prevent physical impact to, and propeller dredging of, the benthic habitat at the Project site. Conditions in the Consolidated Authorization, as well as the conditions addressed in paragraphs 68, 69, and 70, above, also will help protect the current condition and relative value of the salt marsh and benthic habitat on the Project site. Unacceptable Cumulative Impacts to Wetlands and Surface Waters With the conditions currently contained in the Consolidated Authorization, along with the conditions addressed in paragraphs 68, 69, and 70, above, the Project is not anticipated to have adverse water quality impacts. Additionally, as discussed above, the Project is not anticipated to cause adverse impacts to fish, wildlife, protected species, and their habitat. Therefore, with the inclusion of the conditions discussed in paragraphs 68, 69, and 70, above, reasonable assurance has been provided that the Project will not have unacceptable cumulative impacts, in violation of rule 62- 330.302(1)(b). Past Violations of Water and Wetlands Statutes and Rules The City presented evidence consisting of videos and photographs taken from the Wood residence immediately east of Lot 9. These videos and photographs show a variety of activities that are potentially damaging to surface waters and wetlands, including dumping sediment into surface waters from a moored vessel; earthmoving; moving floating docks onto, and off of, the shoreline using heavy equipment; operating heavy equipment in wetlands and surface waters along the shoreline; and mooring boats in extremely shallow water. Wood testified, credibly, that he contacted DEP numerous times, and that DEP occasionally visited Shafnacker's property——typically days after Wood had contacted the agency. Upon inspecting the Workboats site, DEP determined that barges or other equipment or materials had been dragged onto the shoreline without proper authorization, and DEP issued a compliance assistance offer letter to address this noncompliance. DEP ultimately determined that, rather than taking enforcement action for this noncompliance, a salt marsh restoration corrective action requirement should be included in the Consolidated Authorization. The corrective action conditions require Workboats to submit a salt marsh restoration plan and impose restoration plan completion timeframes, success criteria, and monitoring requirements. Given Workboats' noncompliance history, the undersigned determines that in order to provide reasonable assurance that the Project will not violate environmental resource permitting statutes and rules, the conditions addressed above in paragraphs 35, 68, 69, and 70, above, must be included as enforceable conditions in the Consolidated Authorization. Compliance with Chapter 18-21 for Issuance of the Lease For Workboats to be entitled to issuance of the Lease, it must demonstrate, by a preponderance of the evidence, that it will meet the applicable requirements and standards codified in Florida Administrative Code Chapter 18-21 for issuance of a sovereignty submerged lands lease. Water Dependent Activities Rule 18-21.004(1)(g) requires activities on sovereignty submerged lands to be limited to those that are water dependent. A "water dependent activity" is one that can only be conducted in, on, over, or adjacent to water areas because the activity requires direct access to the water body or sovereignty submerged lands for specified activities, including recreation, and where the use of water or sovereignty submerged lands is an integral part of the activity. Fla. Admin. Code R. 18- 21.003(71). The Project's proposed docks, mooring piles, mooring dolphins, and vessel mooring operations are water dependent activities. The Project's primary purpose is the water dependent activity of mooring vessels and the ancillary activity of loading vessels with supplies as part of Workboats' operation. Case law interpreting Florida Administrative Code Chapter 18-21 holds that because the primary purpose of docks and other mooring structures is to moor vessels, they are "water dependent" activities for purposes of rule 18-21.004(1)(g).19/ As discussed in paragraphs 35, 68, 69, and 70, above, a condition should be included in the environmental resource permit and Lease specifically prohibiting any major repair, reconstruction, or maintenance activities within the Lease area, in order to ensure that only water dependent activities are conducted within the Lease area. Resource Management Requirements Rule 18-21.004(2)(a) requires sovereignty submerged lands to be managed primarily for the maintenance of natural conditions, propagation of fish and wildlife, and traditional recreational uses such as fishing, boating, and swimming. Additionally, the rule authorizes compatible secondary uses that will not detract from or interfere with these primary purposes. As discussed above, the evidence establishes that the Project, as proposed and conditioned in the Consolidated Authorization, will not adversely affect salt marsh or benthic habitat, will not degrade water quality or cause or contribute to water quality violations, and will not adversely affect fish, wildlife, listed species, and marine productivity. Accordingly, the Project will not detract from, or interfere, with fish and wildlife propagation. The evidence also establishes that the Project will not detract from, or interfere with, traditional recreational uses. As discussed above, the Back Channel is wide enough to accommodate vessels traveling to and from the Project site without detracting from or interfering with recreational activities conducted in the Back Channel. Additionally, vessels traveling to and from the Project site must be operated in accordance with the slow speed, minimum wake zone within the 300-foot shoreline buffer, and will be operated at speeds that will generate a maximum two-foot wake outside of the shoreline buffer. The evidence shows that these speeds will not detract from, or interfere with, traditional recreational uses in the Back Channel. The Project also has been designed, and will be operated, to minimize or eliminate wetland vegetation impacts and impacts to fish and wildlife habitat and cultural resources. Specifically, as discussed above, impacts to the salt marsh habitat have been minimized through the use of minimally- impactful construction techniques and elevating docks four feet above the marsh to reduce shading of the marsh grasses. Additionally, the 12-inch minimum vessel/submerged resource clearance condition will reduce impacts to the benthic habitat in the Lease area. As discussed above, DHR did not provide comments indicating that significant historical or archaeological resources are anticipated to be present at the Project site, and no evidence was presented showing that the Project would have any impacts to such resources. Additionally, the Consolidated Authorization contains a specific condition establishing protocol for Workboats to follow if any specified artifacts are encountered at any time within the Project site. Rule 18-21.004(7)(e) requires that construction, use, or operation of the structure or activity not adversely affect any species listed as endangered, threatened, or of special concern in FWC rules. As discussed above, the Florida Manatee is the only listed species determined to be present the Project site. The Project site is located within an established slow speed, minimum wake zone, and vessels entering and leaving the Project site must comply with this speed limitation within the 300-foot shoreline buffer area. Additionally, the Consolidated Authorization includes several conditions designed to reduce and minimize potential impacts to manatees that may enter the Lease area. Collectively, these requirements and conditions will help ensure that the construction and operation of the Project will not adversely affect manatees. Riparian Rights As part of the Application, Workboats submitted deeds and Disclaimer No. 22146, demonstrating that Shafnacker holds title to lots 6, 7, 8, and 9. These documents constitute "satisfactory evidence of sufficient upland interest," as that term is defined in rule 18.21.003(60). Consistent with rule 18-21.004(3)(d), the Project is proposed to be constructed in the riparian area appurtenant to lots 6, 7, 8, and 9, and all structures that are part of the Project will be set back at least 25 feet from the eastern and western riparian lines for the upland property. No evidence was presented showing that the construction or operation of the Project would unreasonably restrict or infringe upon the riparian rights of adjacent upland owners, in violation of rule 18-21.004(3)(c). It is determined that the Project will not unreasonably infringe on or restrict the riparian rights of adjacent upland riparian owners, so meets the requirements and standards in rule 18-21.004(3) regarding riparian rights. Navigational Hazard For the reasons discussed in paragraphs 102 through 107, above, it is determined that the Project will not constitute a navigational hazard, in violation of rule 18- 21.004(7)(g). However, the inclusion of a condition requiring lighting of the mooring dolphins, discussed in paragraph 106, is recommended to ensure the Project will not constitute a navigational hazard. Lease Fees As part of the Application, Workboats submitted a financial affidavit attesting to its ability to pay the required fees for the Lease, imposed pursuant to rules 18-21.008 and 18-21.011. Not Contrary to the Public Interest Rule 18-21.004 establishes the sovereignty submerged lands management policies, standards, and criteria to be used in determining whether to approve activities on sovereignty submerged lands. The term "public interest" is defined to mean "demonstrable environmental, social, and economic benefits which would accrue to the public at large as a result of the proposed action, and which would clearly exceed all demonstrable environmental, social, and economic costs of the proposed action." Fla. Admin. Code R. 18-21.003(51). To meet the "not contrary to the public interest" standard in rule 18-21.004(1)(a), it is not necessary that the applicant show that the activity is affirmatively in the "public interest," as that term is defined in rule 18-21.003(51). Rather, it is sufficient that the applicant show that there are few, if any, "demonstrable environmental, social, and economic costs" of the proposed activity. Castoro v. Palmer, Case Nos. 96-0736, 96-5879 (Fla. DOAH Sept. 1, 1998; Fla. DEP Oct. 19, 1998). Here, the City asserts that the Lease is contrary to the public interest because it will cause adverse impacts to benthic and salt marsh habitat; discharge pollutants into the waters of the Back Channel; harm manatees; pose a navigational hazard; and detract from, and interfere with, recreational activities in the Back Channel. However, as discussed above, the evidence shows that the Project has been designed specifically to minimize many of these impacts, and the Consolidated Authorization contains conditions specifically aimed at preventing many of these alleged impacts. As discussed above, other conditions, discussed in paragraphs 68, 69, 70, 106, and 138, also should be included in the Consolidated Authorization to ensure that the Project will not cause adverse impacts to habitat resources, water quality, manatees, and navigation. Case law interpreting the public interest test in rule in 18-21.004(1)(a) applicable to proprietary approvals holds that when proposed structures or activities meet the applicable standards and criteria in chapter 18-21, those structures or activities are presumed to be not contrary to the public interest. See Spinrad v. Guerro and Dep't of Envtl. Prot., Case No. 13-2254 (Fla. DOAH July 25, 2014), modified in part, Case No. 13-0858 (Fla. DEP Sept. 8, 2014); Haskett v. Rosati and Dep't of Envtl. Prot., Case No. 13-0465 (Fla. DOAH July 31, 2013), modified in part, Case No. 13-0040 (Fla. DEP Oct. 29, 2013). Here, Workboats has demonstrated that the Project meets all applicable standards and criteria in chapter 18-21; thus, the Project is presumed to be not contrary to the public interest under rule 18-21.004(1)(a).20/ The City did not present persuasive evidence showing that, on balance, the demonstrable environmental, social, and economic costs of the Project exceed the demonstrable environmental, social, and economic benefits accruing to the public.21/ Accordingly, it is determined that the Project meets the public interest test in rule 18- 21.004(1)(a). Entitlement to Environmental Resource Permit Workboats met its burden under section 120.569(2)(p) to present a prima facie case of entitlement to the environmental resource permit by entering into evidence the Application, Notice of Intent, Consolidated Authorization, and supporting information. Workboats also presented credible, competent, and substantial evidence beyond that required to meet its burden to demonstrate prima facie entitlement to the environmental resource permit. The burden then shifted to the City to demonstrate, by a preponderance of the competent substantial evidence, that the Project does not comply with sections 373.413 and 373.414 and applicable environmental resource permitting rules. For the reasons discussed above, it is determined that the City did not meet its burden of persuasion under section 120.569(2)(p). Accordingly, for the reasons discussed above, it is determined that, with the inclusion of conditions in the Consolidated Authorization addressed in paragraphs 35, 68, 69, 70, and 106, above, Workboats meets all applicable requirements for issuance of the environmental resource permit for the Project. Entitlement to Lease As discussed above, Workboats bore the burden of proof in this proceeding to demonstrate, by a preponderance of the evidence, that the Project meets all applicable statutory and rule requirements for issuance of the Lease. For the reasons discussed above, it is determined that Workboats met this burden, and, therefore, is entitled to issuance of the Lease for the Project. The City's Standing As previously noted, the City is a consolidated municipality and county political subdivision of the State of Florida. The Project is located within the geographic boundary of the City. On or about July 26, 2018, the Council of the City of Jacksonville, Florida, adopted Resolution 2018-499-A, finding that issuance of the environmental resource permit and Lease affects the substantial interests of a significant number of residents in Duval County. The City initiated this proceeding by filing its Petition with DEP on August 17, 2018, alleging that the Project will have the effect of impairing, polluting, or otherwise injuring the air, water, or other natural resources of the state.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law, it is RECOMMENDED that the Department of Environmental Protection enter a final order approving the issuance of Consolidated Environmental Resource Permit and Recommended Intent to Grant Sovereignty Submerged Lands Authorization, Permit No. 16-0345934-003-EI, on the terms and conditions set forth in the Consolidated Notice of Intent and attached draft amended Permit No. 16-0345934-003-EI, as modified to include the conditions addressed in paragraphs 35, 68, 69, 70, 106, and 137, above. DONE AND ENTERED this 1st day of March, 2019, in Tallahassee, Leon County, Florida. S CATHY M. SELLERS Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 1st day of March, 2019.
The Issue The issues to be resolved in this proceedings concern whether Environmental Resource Permit (ERP) No. 4-109-0216-ERP, should be modified to allow construction and operation of a surface water management system (project) related to the construction and operation of single-family homes on "Marshall Creek" (Parcel D) in a manner consistent with the standards for issuance of an ERP in accordance with Rules 40C-4.301 and 40C-4.302, Florida Administrative Code.
Findings Of Fact The Project The project is a 29.9-acre residential development and associated stormwater system in a wetland mitigation area known as "Parcel D." It lies within the much larger Marshall Creek DRI in St. Johns County, Florida, bounded on the northeast by Marshall Creek, on the south and southeast by a previously permitted golf course holes sixteen and seventeen, and on the north by the "Loop Road." The project consists of thirty residential lots of approximately one-half acre in size; a short segment of Loop Road to access Parcel D; an internal road system; expansion of previously permitted Pond N, a wet detention stormwater management pond lying north of the Loop Road and wetland mitigation areas. Approximately 1.15 acres of wetlands are located on the Parcel D site. The project plan calls for filling 0.63 acres of the wetlands for purposes of constructing a road and residential lots for Parcel D. Part of that 0.63-acre impact area, 0.11 acres, is comprised of a 760-foot-long, narrow drainageway, with 0.52 acres of adjacent wetland. Downstream of the fill area, 0.52 acres of higher quality wetland is to be preserved. Hines proposes to preserve 4.5 acres of existing wetland and 2.49 acres of upland, as well as to create .82 acres of forested wetland as mitigation for the proposed impact of the project. Additionally, as part of the project, Hines will implement a nutrient and pesticide management plan. The only pesticides to be used at the project will be approved by the Department of Agriculture for use with soil types prevailing at the site and only pesticides approved by the Environmental Protection Agency may be used on the site. All pesticides to be used on the project site must be selected to minimize impacts to ground and surface water, including having a maximum 70-day half-life. Stormwater Management System The majority of surface runoff from Parcel D will be diverted to a stormwater collection system and thence through drainage pipes and a swale into Phase I of Pond N. After treatment in Pond N, the water will discharge to an upland area adjacent to wetlands associated with Marshall Creek and then flow into Marshall Creek. The system will discharge to Marshall Creek. In addition to the area served by Pond N, a portion of lots fourteen though twenty drain through a vegetated, natural buffer zone and ultimately through the soil into Marshall Creek. Water quality treatment for that stormwater runoff will be achieved by percolating water into the ground and allowing natural soil treatment. The fifty-foot, vegetated, natural buffer is adequate to treat the stormwater runoff to water quality standards for Lots 14, 15 and 20. Lots 16, 17, 18 and 19, will have only a twenty-five foot buffer, so additional measures must be adopted for those lots to require either that the owners of them direct all runoff from the roofs and driveways of houses to be constructed on those lots to the collection system for Pond N or placement of an additional twenty-five foot barrier of xeriscape plants, with all non- vegetated areas being mulched, with no pesticide or fertilizer use. An additional mandatory permit condition, specifying that either of these measures must be employed for Lots 16, 17, 18 and 19, is necessary to ensure that water quality standards will be met. Pond N is a wet detention-type stormwater pond. Wet detention systems function similarly to natural lakes and are permanently wet, with a depth of six to twelve feet. When stormwater enters a wet detention pond it mixes with existing water and physical, chemical and biological processes work to remove the pollutants from the stormwater. Pond N is designed for a twenty-five year, twenty-four- hour storm event (design storm). The pre-development peak rate of discharge from the Pond N drainage area for the design storm event is forty cubic feet per second. The post-development peak rate of discharge for the design storm event will be approximately twenty-eight cubic feet per second. The discharge rate for the less severe, "mean annual storm" would be approximately eleven cubic feet per second, pre-development peak rate and the post-development peak rate of discharge would be approximately five cubic feet per second. Consequently, the post-development peak rate of discharge does not exceed the pre- development peak rate of discharge. Pond N is designed to meet the engineering requirements of Rule 40C-42.026(4), Florida Administrative Code. Because the pond is not designed with a littoral zone, the permanent pool volume has been increased by fifty-percent. Additionally, because Pond N discharges to the Class II waters of Marshall Creek, an additional fifty-percent of treatment volume is included in the pond design. The system design addresses surface water velocity and erosion issues through incorporation of best management practices promulgated by the District to prevent erosion and sedimentation, including; designing side slopes of 4:1; siding and seeding disturbed areas to stabilize soil; and the use of riprap at the outfall from Pond N. During construction, short- term water quality impacts will be addressed through installation of silt fences and hay bales. The majority of the eighteen-acre drainage basin which flows into the Parcel D wetland lies to the south and southwest of Parcel D. In accordance with the prior permit, water from those off-site acres will be intercepted and routed to stormwater ponds serving golf course holes sixteen and seventeen. The system design will prevent adverse impacts to the hydroperiod of remaining on-site and off-site wetlands. The remaining wetlands will be hydrated through groundwater flow. Surface waters will continue to flow to the wetlands adjacent to lots fourteen through twenty because drainage from those lots will be directed across a vegetated, natural buffer to those wetlands. There is no diversion of water from the natural drainage basin, because Pond N discharges to a wetland adjacent to Marshall Creek, slightly upstream from the current discharge point for the wetland which is to be impacted. This ensures that Marshall Creek will continue to receive that fresh-water source. An underground "PVC cut-off wall" will be installed around Pond N to ensure that the pond will not draw down the water table below the wetlands near the pond. Pond N has been designed to treat stormwater prior to discharge, in part to remove turbidity and sedimentation. This means that discharge from the pond will not carry sediment and that the system will not result in shoaling. There will be no septic tanks in the project. The system is a gravity flow system with no mechanical or moving parts. It will be constructed in accordance with standard industry materials readily available and there will be nothing extraordinary about its design or operation. The system is capable of being effectively operated and maintained and the owner of the system will be the Marshall Creek Community Development District (CDD). Water Quality Water entering Pond N will have a residence time of approximately 200 days or about fifteen times higher than the design criteria listed in the below-cited rule. During that time, the treatment and removal process described herein will occur, removing most of the pollutants. Discharge from the pond will enter Marshall Creek, a Class II water body. The discharges must therefore meet Class II water quality numerical and anti-degradation standards. The design for the pond complies with the design criteria for wet detention systems listed in Rule 40C-42.026(4), Florida Administrative Code. In addition to meeting applicable design criteria, the potential discharge will meet water quality standards. The pond will have low levels of nitrogen and phosphorous resulting in low algae production in the pond. The long residence time of the water in the pond will provide an adequate amount of time for pesticides to volatilize or degrade, minimizing the potential for pesticide discharge. Due to the clear characteristics of the water column, neither thermal stratification nor chemical stratification are expected. Periodically, fecal coliform and total coliform levels are exceeded under current, pre-development conditions. These are common natural background conditions. Because the detention time in the pond will be an average of 200 days, and because the life span of fecal coliform bacteria is approximately seven to fourteen days the levels for coliforms in the pond will be very low. Discharges from the pond will enhance water quality of the Class II receiving waters because the levels of fecal coliform and total coliform will be reduced. The discharge will be characterized by approximately 100 micrograms per liter total nitrogen, compared with a background of 250 micrograms per liter presently existing in the receiving waters of Marshall Creek. The discharge will contain approximately three micrograms per liter of phosphorous, compared with sixty-three micrograms per liter presently existing in Marshall Creek. Total suspended solids in the discharge will be less than one-milligram per liter compared with seventy-two milligrams per liter in the present waters of Marshall Creek. Biochemical oxygen demand will be approximately a 0.3 level in the discharge, compared with a level of 2.4 in Marshall Creek. Consequently, the water quality discharging from the pond will be of better quality than the water in Marshall Creek or the water discharging from the wetland today. The pollutant loading in the discharge from the stormwater management system will have water quality values several times lower than pre-development discharges from the same site. Comparison of pre-development and post-development mass loadings of pollutants demonstrates that post-development discharges will be substantially lower than pre-development discharges. Currently, Marshall Creek periodically does not meet Class II water quality standards for dissolved oxygen. Construction and operation of the project will improve water quality in the creek concerning dissolved oxygen values because discharges from Pond N will be subjected to additional aeration. This results from design features such as discharge from the surface of the system, where the highest level of dissolved oxygen exists, and the discharge water draining through an orifice and then free falling to a stormwater structure, providing additional aeration. Discharges from the system will maintain existing uses of the Class II waters of Marshall Creek because there will be no degradation of water quality. Discharges will not cause new violations or contribute to existing violations because the discharge from the system will contain less pollutant loading for coliform and will be at a higher quality or value for dissolved oxygen. Discharges from the system as to water quality will not adversely affect marine fisheries or marine productivity because the water will be clear so there will be no potential for thermal stratification; the post-development discharges will remain freshwater so there will be no change to the salinity regime; and the gradual pre-development discharges will be replicated in post-development discharges. Several factors minimize potential for discharge of pesticide related pollutants: (1) only EPA-approved pesticides can be used; (2) only pesticides approved for site-specific soils can be used; (3) pesticides must be selected so as to minimize impacts on surface and groundwater; (4) pesticides must have a maximum half-life of 70 days; and (5) the system design will maximize such pollutant removal. Archaeological Resources The applicant conducted an archaeological resource assessment of the project and area. This was intended to locate and define the boundaries of any historical or archaeological sites and to assess any site, if such exists, as to its potential eligibility for listing in the National Register of Historic Places (National Register). Only a portion of one archaeological site was located on the project tract. Site 8SJ3473, according to witness Anne Stokes, an expert in the field of archaeological assessment, contains trace artifacts dating to the so-called "Orange Period," a time horizon for human archaeological pre-history in Florida dating to approximately 2,300 B.C. The site may have been only a small campsite, however, since only five pottery fragments and two chert flakes, residuals from tool-making were found. Moreover, there is little possibility that the site would add to knowledge concerning the Orange Period or pre-history because it is a very common type of site for northeast Florida and is not an extensive village site. There are likely other campsites around and very few artifacts were found. No artifacts were found which would associate the site with historic events or persons. The applicant provided the findings of its cultural resource assessment, made by Dr. Stokes, to the Florida Division of Historical Resources. That agency is charged with the responsibility of reviewing cultural resource assessments to determine if significant historic or archaeological resources will be impacted. The division reviewed the survey techniques used by Dr. Stokes, including shovel testing, sub-surface testing and pedestrian walk-over and investigation. The division determined that the site in question is not of a significant historical or archaeological nature as a resource because it does not meet any of the four criteria for inclusion in the National Register.1 Thus the referenced agency determined that the site in question is not a significant historical or archaeological resource and that construction may proceed in that area without further investigation, insofar as its regulatory jurisdiction is concerned. Wetlands The wetlands to be impacted by the project consist of a 1,000 foot drainage-way made up of a 0.11 acre open-water channel, approximately four feet wide, and an adjacent vegetated wetland area of approximately 0.52 acres containing fewer than 30 trees. The open-water channel is intermittent in that it flows during periods of heavy rainfall and recedes to a series of small, standing pools of water during drier periods. The Parcel D wetland is hydrologically connected to Marshall Creek, although its ephemeral nature means that the connection does not always flow. The wetland at times consists only of isolated pools that do not connect it to Marshall Creek. Although it provides detrital material export, that function is negligible because the productivity of the adjacent marsh is so much greater than that of the wetland with its very small drainage area. Because of the intermittent flow in the wetland, base flow maintenance and nursery habitat functions are not attributed to the wetland. The Parcel D wetland is not unique. The predominant tree species and the small amount of vegetated wetland are water oak and swamp bay. Faunal utilization of the wetland is negligible. The wetland drainage-way functions like a ditch because it lacks the typical characteristics of a creek, such as a swampy, hardwood floodplain headwater system that channelizes and contains adjacent hardwood floodplains. The location of the wetland is an area designated by the St. Johns County comprehensive plan as a development parcel. The Florida Natural Areas Inventories maps indicate that the wetland is not within any unique wildlife or vegetative habitats. The wetland is to be impacted as a freshwater system and is not located in a lagoon or estuary. It contains no vegetation that is consistent with a saltwater wetland. The retaining wall at the end of the impact area is located 1.7 feet above the mean high water line. Wetland Impacts The proposed 0.63 acre wetland impact area will run approximately 760 linear feet from the existing trail road to the proposed retaining wall. If the wetland were preserved, development would surround the wetland, adversely affecting its long-term functions. Mitigation of the wetland functions is proposed, which will provide greater long-term ecological value than the wetland to be adversely affected. The wetland to be impacted does not provide a unique or special wetland function or good habitat source for fish or wildlife. The wetland does not provide the thick cover that would make it valuable as Black Bear habitat and is so narrow and ephemeral that it would not provide good habitat for aquatic-dependent and wetland-dependent species. Its does not, for instance, provide good habitat for woodstorks due to the lack of a fish population and its closed- in tree canopy. Minnow sized fish (Gambusia) and crabs were seen in portions of the wetland, but those areas are downstream of the proposed area of impact. Mitigation Mitigation is offered as compensation for any wetland impacts as part of an overall mitigation plan for the Marshall Creek DRI. The overall mitigation plan is described in the development order, the mitigation offered for the subject permit and mitigation required by prior permits. A total of 27 acres of the more than 287 acres of wetlands in the total 1,300-acre DRI tract are anticipated to be impacted by the DRI. Approximately 14.5 acres of impacted area out of that 27 acres has already been previously authorized by prior permits. The overall mitigation plan for the DRI as a whole will preserve all of the remaining wetlands in the DRI after development occurs. Approximately one-half of that preserved area already has been committed to preservation as a condition of prior permits not at issue in this case. Also, as part of prior permitting, wetland creation areas have been required, as well as preserved upland buffers which further protect the preserved wetlands. The mitigation area for the project lies within the Tolomato River Basin. The development order governing the total DRI requires that 66 acres of uplands must also be preserved adjacent to preserved wetlands. The overall mitigation plan for the DRI preserves or enhances approximately 260 acres of wetlands; preserves a minimum of 66 acres of uplands and creates enhancement or restores additional wetlands to offset wetland impacts. The preserved wetlands and uplands constitute the majority of Marshall Creek, and Stokes Creek which are tributaries of the Tolomato River Basin, a designated Outstanding Florida Water (OFW). Preservation of these areas prevents them from being timbered and ensures that they will not be developed in the future. The overall DRI mitigation plan provides regional ecological value because it encompasses wetlands and uplands they are adjacent to and in close proximity to the following regionally significant resources: (1) the 55,000 acre Guana- Tolomato-Matanzas National Estuarine Research Reserve; (2) the Guana River State Park; (3) the Guana Wildlife Management Area; (4) an aquatic preserve; (5) an OFW; and (6) the 22,000 acre Cummer Tract Preserve. The mitigation plan will provide for a wildlife corridor between these resources, preserve their habitat and insure protection of the water quality for these regionally significant resources. The mitigation offered to offset wetland impacts associated with Parcel D includes: (1) wetland preservation of 0.52 acres of bottom land forest along the northeast property boundary (wetland EP); (2) wetland preservation of 3.98 acres of bottom land forest on a tributary of Marshall Creek contained in the DRI boundaries (Wetlands EEE and HHH); (3) upland preservation of 2.49 acres, including a 25-foot buffer along the preserved Wetlands EEE and HHH and a 50-foot buffer adjacent to Marshall Creek and preserved Wetland EP; (4) a wetland creation area of 0.82 acres, contiguous with the wetland preservation area; and (5) an upland buffer located adjacent to the wetland creation area. The wetland creation area will be graded to match the grades of the adjacent bottomland swamp and planted with wetland tree species. Small ponds of varying depths will be constructed in the wetland creation area to provide varying hydrologic conditions similar to those of the wetland to be impacted. The wetland creation area is designed so as to not de-water the adjacent wetlands. All of the mitigation lands will be encumbered with a conservation easement consistent with the requirements of Section 704.06, Florida Statutes. The proposed mitigation will offset the wetland functions and values lost through the wetland impact on Parcel D. The wetland creation is designed to mimic the functions of the impact area, but is located within a larger ecological system that includes hardwood wetland headwaters. The long-term ecological value of the mitigation area will be greater than the long-term value of the wetland to be impacted because; (1) the mitigation area is part of a larger ecological system; (2) the mitigation area is part of an intact wetland system; (3) the wetland to be impacted will be unlikely to maintain its functions in the long-term; and (4) the mitigation area provides additional habitat for animal species not present in the wetland to be impacted. Certain features will prevent adverse secondary impacts in the vicinity of the roadway such as: (1) a retaining wall which would prevent migration of wetland animals onto the road; (2) a guard rail to prevent people from moving from the uplands into wetlands; and (3) a vegetated hedge to prevent intrusion of light and noise caused by automotive use of the roadway.
Recommendation Having considered the foregoing Findings of Fact and 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 granting the subject application for modification of Permit 4-109-0216A-ERP so as to allow construction and operation of the Parcel D project at issue, with the addition of the inclusion of a supplemental permit condition regarding the vegetated natural buffers for Lots 16 through 19 described and determined above. DONE AND ENTERED this 9th day of April, 2001, in Tallahassee, Leon County, Florida. P. MICHAEL RUFF Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 SUNCOM 278-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 9th day of April, 2001.
The Issue The issues are whether Respondent Centex Homes is entitled to the issuance of an environmental resource permit to construct a 2665 square-foot boat dock and authorization of a lease of 7807 square feet of sovereign submerged land in the portion of the Intracoastal Waterway known as Lake Worth Lagoon in Palm Beach County.
Findings Of Fact In this case, Respondent South Florida Water Management District (District) has proposed to issue to Respondent Centex Homes (Centex) an environmental resource permit (ERP) and authorization to lease sovereign submerged land. The purpose of the ERP and lease authorization is for Centex to construct a dock to serve a multifamily development known as Ocean Cay. Ocean Cay is a 56-unit townhouse development located on a five-acre parcel in Hypoluxo, Florida, bordered on the west by U.S. Highway 1, on the east by the Lake Worth Lagoon, and on the north and south by developed residential areas. At the time of the hearing, Centex had closed on the sale of 50 of the residential units, was finishing construction of the final six units, and had entered into contracts to sell three of these six units. The Lake Worth Lagoon is a Class III water and is not an aquatic preserve. The Intracoastal Waterway channel is in the middle of the lagoon. The proposed dock would be about 1.5 miles north of the South Lake Worth Inlet (a/k/a Boynton Inlet) and 13 miles south of the Lake Worth Inlet (a/k/a Palm Beach Inlet). As measured from the project location to the opposite shoreline, the length of the dock is more than 25 percent of the width of the waterbody. Petitioner Michael C. Brown resides at 131 Las Brisas Circle, Hypoluxo, Florida. Intervenor O'Brien resides at 124 Park Lane East, Hypoluxo, Florida. Intervenors Evlyn and Vern Hakes reside at 140 Park Lane East, Hypoluxo, Florida. As stipulated by Respondents, Petitioner and Intervenors have standing, so this Recommended Order will not restate the substantial evidence in the record of the standing of Petitioner and Intervenors. Three of the objections raised by Petitioner and Intervenors involve procedural issues that are easily dismissed on factual grounds. The first objection is that Centex lacks the requisite equitable interest in the upland to obtain a lease of sovereign submerged land. The second objection is that the Ocean Cay Homeowners' Association lacks the financial, legal, and administrative resources to ensure the performance of all permitting obligations, as they may arise in the future. The third objection is that District staff, not the Governing Board of District, issued the proposed agency action on the ERP. As for the first procedural objection, Centex acquired the parcel by special warranty deed, which vests fee simple interest in Centex and contains all the customary warranties of title. The title insurance policy obtained by Centex for the parcel insures fee simple interest in Centex, subject to undescribed reservations contained in the deed from the Board Trustees of the Internal Improvement Trust Fund (Trustees), any part of the parcel lying below the mean high water line, and public rights "to use the waters over the submerged land lying adjacent to or within the Intercoastal [sic] Waterway for boating, fishing, swimming and other public purposes, together with the rights of the State of Florida and United States to regulate the use of the navigable waters." Not only does Centex enjoy full beneficial ownership of the upland, subject to the rights of its grantees who have purchased townhouse units, but Centex's title extends approximately 250 feet waterward of the mean high water line by operation of a deed from the Trustees to a predecessor in interest of Centex. If the ownership of submerged land between the submerged land for which an applicant seeks a lease and adjacent uplands also owned by an applicant has any effect at all, it only emphasizes the legitimate, nonspeculative interest of such an applicant in obtaining the sought-after lease. As for the second procedural objection, Centex is a sophisticated land-development entity with ample financial, legal, and administrative resources to ensure the satisfaction of any permitting obligations imposed upon it in connection with this case. At present, Centex controls the Ocean Cay Homeowners' Association. So, at present, the concerns of Petitioner and Intervenors about the ability of the homeowners' association to satisfy its obligations are unfounded. It is true that, upon the closing of the sale of sufficient units, Centex will transfer control of the homeowners' association to the homeowners. The record does not describe the financial, legal, and administrative resources of the homeowners' association following the withdrawal of Centex, but they will presumably not approach the substantial resources of Centex. District claims that Centex may not transfer the ERP without District's approval; however, ERP Special Condition 2 identifies the operating entity responsible for the docking facility as Ocean Cay Homeowners' Association, even though the ERP identifies the applicant as Centex. Fatal to the argument of Petitioner and Intervenors, though, are the facts that the proposed lease of sovereign submerged land is for only five years, a failure to discharge permit obligations that should be incorporated verbatim into the lease militates against any lease renewals, and the removal of the dock would substantially cure any deficiencies in its maintenance. As for the third procedural objection, District staff, on November 21, 2003, proposed to issue a standard general ERP for the construction and operation of a 2665 square-foot docking facility with nine boat slips for use by the residents of Ocean Cay and to approve the lease of 7807 square feet of sovereign submerged land under and surrounding the docking facility. Staff issues a proposed standard general ERP when a permit does not conflict with existing law or policy or a work of the District. District's Governing Board issues a proposed standard individual ERP in the relatively rare case in which a permit conflicts with existing law or policy or a work of the District. Again, the objections of Petitioner and Intervenors lack factual support. Here, the Governing Board, not staff, will receive the Recommended Order and issue the Final Order. So, as Petitioner and Intervenors wish, the Governing Board, not staff, will take the final agency action in this case. Under these circumstances, the record reveals no harm in the fact that District staff issued the proposed agency action. The remainder of the ERP provisions bears on the substantive objections raised by Petitioner and Intervenors. As amended at the final hearing by District and accepted by Centex, ERP Special Condition 9 provides: A permanent sign shall be installed at the docking facility entrance to notify boat owners that mooring at the docking facility shall be limited to no more than a total of nine vessels. Vessels moored in slips 1-2 and 7-9 shall be limited to outboard powered vessels, not more than 27 feet in length as reported by the manufacturer exclusive of engines and any bow pulpit. Vessels moored in slips 3 and 6 shall be limited to not more than 27 feet in length as reported by the manufacturer exclusive of engines and any bow pulpit. Vessels moored in slips 3 and 6 are not limited to outboard power. Vessels moored in slips 4 and 5 shall be limited to 36 feet in length, as reported by the manufacturer exclusive of engines and any bow pulpit. Vessels in slips 4 and 5 are not limited to outboard power. Slips are identified by number in the discussion below. As amended at the final hearing by District and accepted by Centex, ERP Special Condition 10 provides: "Dock, walkway, and seagrass sign pilings shall be constructed of plastic, concrete or greenheart, non-CCA treated wood or wood wrapped in 30 to 60 mil pvc." ERP Special Condition 11 provides that construction of the dock shall be in accordance with the locations and dimensions shown on the enclosed exhibits. The referenced drawings depict the adjacent upland, submerged bottom, and proposed dock. The drawings describe sufficient detail of the adjacent upland. The north and south property lines of the 190- foot wide parcel run due east and west. At mean high water, the parcel's shoreline runs about 210 feet in a south-southwesterly direction from the north property line. Waterward of the mean high water line is a thin band of sand, varying portions of which are exposed between mean high water and mean low water. The drawings describe the submerged bottom in great detail as to seagrass and reasonable detail as to water depths. Waterward of the beach is a band of Halodule wrightii (shoal grass). The drawings describe the shoal grass in this area as "sparse." The drawings depict mean low water depths along three transects at 25-foot intervals, starting roughly at the landward commencement of the shoal grass. (All water depths are based on mean low water.) If the property lines were extended into the water, the north transect is 25 feet south of the north property line, and the south transect is 25 feet north of the south property line. The middle transect is an equal distance between the north and south transects. Along the north transect, the band of shoal grass is about 25 feet wide. Along the south transect, the band narrows to about six feet wide. Along the middle transect, the band is about 50 feet wide. Waterward of the band of sparse shoal grass, according to the drawings, is a band of "mixed Halodule and sparse Johnson's." The reference to "Johnson's" is to Halophila johnsonii (Johnson's grass), which is a rare species of seagrass that is listed by the U.S. Environmental Protection Agency as threatened. 50 C.F.R. § 17.12(h). Johnson's grass is found only on the east coast of Florida from the Indian River Lagoon to Biscayne Bay and is a fragile species of seagrass. The band of mixed shoal grass and sparse Johnson's grass reflects the same pattern as the shoal grass closer to shore: thinner at the north and south ends and wider in the middle. Along the north transect, the band of the two species is about 162 feet wide. Along the south transect, the band is about 212 feet wide. Along the middle transect, the band is about 240 feet wide. Waterward of the middle band of mixed shoal grass and sparse Johnson's grass, according to the drawings, is "scattered isolated blades of H. Decipiens and [Johnson's grass]." "H. Decipiens" is Halophila decipiens (paddle grass). Waterward of the north and south ends of the mixed shoal grass and sparse Johnson's grass are triangular-shaped areas of "sparse Johnson's." Along the north transect, this band of sparse Johnson's grass is about 75 feet wide. Along the south transect, this band of sparse Johnson's grass is about 50 feet wide. Waterward of these bands of sparse Johnson's grass is "scattered, isolated blades of H. Decipiens and [Johnson's grass]." Measured from the mean high water line, the band of mixed shoal grass and sparse Johnson's grass extends about 275 feet along the north transect, 312 feet along the middle transect, and 300 feet along the south transect. Water depths are shallow throughout almost the entire project area. Starting from shore, water depths are almost entirely less than 1.0 feet within the area of sparse shoal grass, although depths reach 1.2 feet along the middle transect. Proceeding waterward along the north transect, the depths within the area of mixed shoal grass and sparse Johnson's grass range from 0.7 feet at the landward end to 2.2 feet at the waterward end. Proceeding waterward along the middle transect, the depths within the area of mixed shoal grass and sparse Johnson's grass range from 1.2 feet to 4.2 feet. Proceeding waterward along the south transect, the depths within the area of mixed shoal grass and sparse Johnson's grass range from 1.0 feet to 2.7 feet. The water continues to deepen in the triangular-shaped areas of sparse Johnson's grass, through which the north and south transects run. Along the north transect, the water depths range from 2.2 feet to 3.1 feet. Along the south transect, the water depths range from 2.7 feet to 3.6 feet. The drawings depict depths waterward of the start of scattered, isolated blades of paddle grass and Johnson's grass. These reported depths extend to a point roughly parallel to the end of the proposed dock along the north transect, about 12 feet waterward of the end of the proposed dock along the middle transect, and about 37 feet waterward of the end of the proposed dock along the south transect. Along the north transect, the depths remain constant, at about 3.5 feet, until the most waterward 25 feet, along which the water deepens 0.5 feet to 4.1 feet. Along the middle transect, the depths deepen about 0.5 feet to around 5.0 feet for about 75 feet, then deepen to 5.4 feet a few feet landward of the most waterward portion of the dock. About 10 feet waterward of the end of the dock, the depth reaches 5.7 feet, which is the deepest reported depth in the project area. Along the south transect, the depths deepen about one foot over the first 100 feet waterward from the start of the scattered, isolated blades of paddle grass and Johnson's grass. From a point parallel to the end of the dock, the water along the south transect deepens another 0.5 feet to about 5.2 feet. The drawings also describe the proposed dock in great detail. The dock, oriented due east and west, runs a distance of 420 feet from its landing, at the mean high water line, to its waterward terminus. The dock is four feet wide, except for a 10-foot long section, at about midpoint, that is six feet wide to facilitate wheelchair access. At the urging of District, to reduce seagrass impacts, Centex moved the dock ten feet south and extended it ten additional feet into deeper water. Because of the former of these modifications, the dock runs ten feet south of the middle transect. The main deck of the dock is grated, so as to allow at least 46 percent of the light to pass through it, from the waterward extent of the sparse shoal grass to the waterward extent of the mixed shoal grass and sparse Johnson's grass, which is a distance of about 250 feet. Although the drawings specify only a value of 46 percent light transmissibility, testimony established that this criterion would require the use of fiberglass decking material. Perhaps the most prominent feature of the dock, in addition to its length, is its height. The deck is five feet above mean high water. Mean high water is 1.7 feet National Geodetic Vertical Datum (NGVD). Mean low water is -0.8 feet NGVD. Five decks run perpendicular to the main deck--three on the south side and two on the north side--to form the slips at the waterward terminus of the dock. The most landward of these decks is four feet wide and 30-feet long and runs south of the main deck, at a point about 330 feet waterward of the landing. Two more decks, both of the same dimensions as the first deck, join the main deck at a point about 375 feet waterward of the landing. Thirty-eight feet separate the two southern decks, so that the two slips created between them (Slips 9 and 8, from landward to waterward) each is 18-19 feet wide. The most landward slip formed north of the main deck (Slip 1) is also 18-19 feet wide. Two pilings north of the main deck and two pilings south of the main deck define these first three slips. The remaining perpendicular decks form the terminus of the entire dock. These decks are eight-feet wide and run 38 feet north and 38 feet south of the edges of the main deck. The four slips immediately landward of these decks are 18-19 feet wide. Moving clockwise from the northwest corner, these slips are Slips 2, 3, 6, and 7. The remaining two slips are waterward of the eight-foot wide deck. The northern slip is Slip 4, and the southern slip is Slip 5. According to the drawings, the waterward extent of the proposed lease is 18 feet waterward of the waterward end of the dock. The waterward extent of the proposed lease is 425 feet from the landward end of the Intracoastal Waterway channel (the 415 feet shown in the drawings is wrong), which, as established by testimony, is 125 feet wide at this location. The drawings also depict a 42-inch high handrail running from the landing to the most landward perpendicular deck. The purpose of the handrail, whose vertical slats are eight inches apart, is to discourage mooring of vessels to the main dock landward of the slips. Every 50 feet, at the base of the handrails on either side of the dock, is a sign prohibiting docking, mooring, loading, or unloading of vessels. At the terminus of the dock, the drawings show a rock crib structure that rises about one foot from the submerged bottom along the entire 80-foot length of the eight-foot wide perpendicular deck. Apparently, the rock crib is eight-feet wide, so that it extends, beneath the surface of the water, under the entire area of the eight-foot wide perpendicular deck. Extending above the rock crib, along this 80-foot long deck, is a wave attenuator. The drawings also depict a couple of seagrass warning signs north and south of the dock, about 20-30 feet waterward of the waterward extent of the sparse Johnson's grass, at the north and south portions of the project area, and the mixed shoal grass and sparse Johnson's grass, in the middle of the project area, just a few feet north of the dock. The drawings also show pilings at a minimum of 10-foot intervals along the entire length of the main deck, as well as pilings for the perpendicular decks at the dock's terminus. Special Condition 12 prohibits fueling facilities or hull-painting or -cleaning at the dock. Special Condition 13 prohibits liveaboards. Special Condition prohibits subleasing of the docking facilities and limits their use to residents of Ocean Cay. Special Conditions 14 and 15 detail various manatee- protection provisions. Special Condition 19 requires the implementation of a turbidity-control plan during construction. Special Condition 18 prohibits construction under the ERP until the Department of Environmental Protection has issued a submerged land lease. As amended at the final hearing by District and accepted by Centex, Special Condition 20 requires Centex to maintain at least one trash receptacle at the terminus of the dock. The District staff report states that Centex has minimized the impacts of the project by reducing the length of the dock from 550 feet and its capacity from 22 slips. The staff report notes, as mentioned above, the relocation of the dock ten feet to the south and ten feet waterward, both changes to reduce impacts on seagrasses. The District staff report states that manatees probably use the area of the project for travel and foraging nearshore seagrass beds. Concerning the lease of sovereign submerged land, the District staff report acknowledges the waterward extent of Centex's ownership of submerged lands. As for the sovereign submerged land, the District staff report states, without explanation, that the docking facility is not more than 25 percent of the width of the "navigable portion of the waterbody," pursuant to Florida Administrative Code Rule 18-21.004(4)(a)3, and is more than 100 feet from the federal navigation channel, as required by Florida Administrative Code Rule 18-21.004(4)(a)4. The District staff report attaches "Recommended Special Lease Conditions for Ocean Cay." These include a restriction that vessels moored at the dock clear the submerged bottom by at least one foot at all times while moored. Other provisions correspond to the special conditions attaching to the ERP, as described above. As discussed in the Conclusions of Law, analysis of the proposed activity requires three determinations: first, does the proposed activity, unmitigated, adversely impact surface waters; second, if so, has Centex reduced or eliminated all such impacts through design modifications to the extent practicable; and third, if so, but if net impacts remain, has Centex adequately mitigated these net impacts? Absent mitigation, the construction of a 420-foot dock covering 2665 square-feet of water adversely impacts the water resources, most obviously by the immediate destruction of the seagrasses occupying the area in which at least 80 pilings will be installed and by the gradual destruction of the seagrasses that will be shaded by the dock and lose the light necessary for survival. Centex has incorporated into the proposed dock design all practicable modifications that could eliminate or reduce these adverse impacts to the surface waters. Centex has proposed a dock that is narrow, high, translucent, and nontoxic. To minimize the risk of prop dredging of the seagrass and bottom sediments, the dock's length and railings would limit mooring to relatively deeper water, and the boat-length restriction would effectively limit the reach of prop dredging. Even after these design modifications, however, adverse impacts to the surface waters remain that Centex must mitigate. The ultimate issue, then, is whether Centex has adequately mitigated the remaining impacts of the proposed activity by proposing sufficient affirmative acts to offset the remaining adverse impacts. Strictly speaking, mitigation consists of activities that are unnecessary for the desired activity--here, the construction of a dock--but are performed to offset the adverse impacts of the desired activity. In this case, Centex proposes three mitigation activities: the construction of a rock crib, the installation of a wave attenuator, and the erection of two seagrass warning signs. The adequacy of this proposed mitigation requires identification of the specific impacts to the surface waters and the efficacy of the mitigation in offsetting these impacts. As cited in the Conclusions of Law, the public-interest criteria set forth the elements requiring consideration. Except to the extent discussed in navigation, the dock will not adversely affect the public health, safety, or welfare or property of others. The narrow, long dock, which restricts mooring activity to its terminus over 400 feet from the shoreline, has no impact on the riparian rights of adjacent or nearby upland owners. Thus, no mitigation is necessary for this criterion. Even after mitigation, the dock will adversely affect the conservation of fish and wildlife, including listed species, and their habitats. The most immediate impact of the dock is upon the seagrasses that presently grow on the bottom. Seagrasses, which are among the most productive communities known to nature, are vital to the health of the Lake Worth Lagoon. Seagrasses perform numerous functions important to the surface waters and, specifically, the conservation of fish and wildlife and their habitats: shelter for small fish and shellfish; food for a variety of small and larger organisms, including manatee and sea turtles; stabilization of bottom sediments, which improves water clarity; recycling of nutrients, including nitrogen--an important function for the water quality of the nitrogen-limited Lake Worth Lagoon; and formation of a substrate on which epiphytes may attach and provide food for a variety of organisms, including manatee and sea turtles. The mitigation activities offset some, but not all, of the functions provided by the seagrass that are lost by the construction of the dock. The rock crib probably will replace the function of the seagrass in stabilizing sediments. The rock crib probably will replicate some of the shelter function of the seagrass, although nothing in the record would support a finding that the crevices of the rock crib provide exactly the same shelter as the seagrass patches that will be destroyed by the dock. Thus, there is no basis to assume that the shelter functions of the seagrass are replaced by the shelter functions of the rock crib. Undoubtedly, the rock crib will not replace the food function of the seagrass. Some predators may find the same juvenile fish in the rock crib as they have found in the seagrass, and some organisms may find the same epiphytes attaching to the rock crib as they have found attaching to the seagrass. However, the organisms, such as manatee and sea turtles, that eat the seagrass itself will find the rock crib a poor food substitute. Additionally, the rock crib will perform none of the nutrient-fixing that seagrasses perform. The rock crib thus fails to perform the vital functions of seagrass in providing food for important species, such as the manatee, and fixing nutrients, which is important to improving or maintaining water quality. The wave attenuator is a potentially useful form of mitigation. Although a slight over-generalization, the seagrass thins to the point of near disappearance at a point in which the slope of the submerged bottom breaks--very roughly at about three feet deep. Centex's witnesses offered the better explanation of this phenomenon by linking it to the strong wakes produced by vessels motoring in the Intracoastal Waterway. Although the area of the proposed project is permanently slow speed, no wake, the Intracoastal Waterway channel has no speed limit, and the wakes from vessels in the channel pound the shallows, focusing considerable energy upon the rising bottom at the point at which the water depth reduces to three feet. The main problem with the wave attenuator as mitigation is one of scale. Nothing in the record suggests that the attenuator, even in conjunction with the rock crib beneath it, will attenuate the incoming waves along the entire length of the dock. The attenuator will absorb the energy of the waves, whether from passing vessels or storms, but the interrupted waves will rejoin a short distance landward of the attenuator, possibly waterward of the first appearance of significant seagrass. The wave attenuator is thus inadequate in preserving or enhancing the remaining seagrass following the construction of the dock. The signs suffer two shortcomings. First, they are as likely to attract fishers as they are to deter recreational boaters, so the record permits no finding as to their efficacy in preserving or enhancing the remaining seagrass following the construction of the dock. Second, the record discloses little prop dredging of the seagrasses in the proposed vicinity of the dock, so the effect of the signs is not to ameliorate the damage historically done in this area by boats. To the contrary, at best, the signs may reduce some of the prop dredging that would occur in the future by boats drawn close to shore by the presence of the dock, which will attract fish and, thus, fishers. For these reasons, the signs are inadequate mitigation. Considered in conjunction with each other, the three mitigation activities fail to address the important food and nutrient-fixing functions of the seagrass that would be destroyed by the dock. Ignoring the failure of the proposed mitigation to address two of the most important functions of the seagrass, District and Centex contend that the mitigation is adequate for other reasons. District and Centex contend that the loss of seagrass is de minimis, consisting of not more than .03 acres of destroyed seagrass, or about 2.2 percent of the seagrass in the project area. Although the east-west orientation of the dock results in more shading than an identical dock oriented north- south, the shading loss could be less due to commendable design modifications involving the width, height, and translucent materials of the dock. Adding to the loss of seagrass from shading is the loss from the "halo effect," which is the wider area of seagrass loss probably resulting from the effect of the dock in artificially attracting and retaining seagrass consumers, like parrot fish. The record thus affords no basis for a finding of a loss of less than .03 acres. Nor does the record afford any basis for determining that the seagrass loss is de minimis. If Lake Worth Lagoon has seagrass to spare, the record does not support such a finding. If the lost functions of the seagrass--primarily, providing food and fixing nutrients--are not de minimis, the question remains whether practicable mitigation for these functions exists. Although transplantation of seagrass may be impracticable due to poor water clarity, even one of Centex's experts noted the importance of filling holes for seagrass recruitment, given the inability of seagrass to extend roots laterally up or down slopes. District's expert identified backfilling submerged holes and scraping spoil islands as two means of encouraging natural seagrass recruitment. District's expert noted a practical consideration favoring rock cribs versus more elaborate, higher-maintenance mitigation. Rock cribs are low- or no-maintenance projects that require no monitoring, enforcement, or enhancement. However, these same considerations underscore the complexity of the functions provided by seagrass lost to the proposed activity. Mitigating the loss of these functions may be difficult and high-maintenance, if the mitigation is to offset the loss. On this record, a finding of impracticability of such mitigation activities would be speculative, given the absence of evidence of impracticability, such as in the form of the absence of nearby depressions with suitable recruitment conditions or seagrass restoration projects in which Centex could participate. An unusual factor militating against a finding of adequate mitigation is that one of the seagrasses is itself a protected species. Johnson's grass is rare and fragile. The dock would displace Johnson's grass in a location less than one mile north of one of ten federally designated Critical Habitats for Johnson's Seagrass and one of two such habitats in Lake Worth Lagoon. 50 C.F.R. § 226.213(h). In contrast to the permit conditions directly protecting the manatee, the record is silent as to any effort by District to coordinate this permit with the work of the federal government and possibly the state and local governments to preserve Lake Worth Lagoon's seagrass, including the threatened Johnson's grass. On balance, even after mitigation, the dock will adversely affect the conservation of fish and wildlife, including listed species, and their habitats. The dock will not adversely affect navigation, the flow of water, and erosion or shoaling. Located only 1.5 miles from the inlet, tidal flows are good in the project area. The rock crib and wave attenuator, which tend to restrict east-west flows and waves, will have little impact on the tidal flows, which are predominantly in a north-south direction. The dock will not cause any erosion or shoaling. The dock will be lighted and should not present a navigation hazard. Larger vessels will remain a safe distance from the dock as they travel in the Intracoastal Waterway channel. Under normal boating conditions, small boats, such as kayaks, canoes, and small motorboats, can safety navigate under the five-foot deck and between the pilings spaced at a minimum distance of ten feet apart. The dock will not adversely affect the fishing or recreational values in the vicinity. To the contrary, the structure provided by the dock will probably attract and concentrate fish, making them easier to catch. In the longer term, even after mitigation, the dock will adversely affect marine productivity for the reasons discussed in connection with the conservation of fish and wildlife and their habitat. The dock will not adversely affect any historical or archaeological resources. Even after mitigation, the dock will adversely affect the current conditions and relative value of functions for the reasons discussed in connection with the conservation of fish and wildlife and their habitat. For the reasons set forth above, Centex has failed to provide reasonable assurance that the proposed activity, even after mitigation, is not harmful to the District's water resources, is not inconsistent with District's overall objectives, is not contrary to the public interest, will not adversely impact the value of functions provided to fish and wildlife and listed species by surface waters, and will not cause adverse secondary impacts to the water resources
Recommendation It is RECOMMENDED that the South Florida Water Management District enter a final order denying Centex Homes' request for an environmental resource permit and approval to lease sovereign submerged lands for the purpose of constructing the above- described dock at Ocean Cay in the Lake Worth Lagoon. DONE AND ENTERED this 2nd day of August, 2004, in Tallahassee, Leon County, Florida. S ROBERT E. MEALE Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 SUNCOM 278-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 2nd day of August, 2004. COPIES FURNISHED: Henry Dean, Executive Director South Florida Water Management District 3301 Gun Club Road West Palm Beach, Florida Marcy I. LaHart 33416-4680 Marcy I. LaHart, P.A. 711 Talladega Street West Palm Beach, Florida 33405 Ashley D. Foster South Florida Water Management District 3301 Gun Club Road Mail Stop Code 1410 West Palm Beach, Florida 33406 J. Kendrick Tucker Huey, Guilday, Tucker, Schwartz & Williams, P.A. Post Office Box 12500 Tallahassee, Florida 32317-2500
The Issue The issue to be determined is whether Consumptive Use Permit No. 2-083-91926-3, and Environmental Resource Permit No. IND-083-130588-4 should be issued as proposed in the respective proposed agency actions issued by the St. Johns River Water Management District.
Findings Of Fact The Parties Sierra Club, Inc., is a national organization, the mission of which is to explore, enjoy, and advocate for the environment. A substantial number of Sierra Club’s 28,000 Florida members utilize the Silver River, Silver Springs, the Ocklawaha River, and the St. Johns River for water-based recreational activities, which uses include kayaking, swimming, fishing, boating, canoeing, nature photography, and bird watching. St. Johns Riverkeeper, Inc., is one of 280 members of the worldwide Waterkeepers Alliance. Its mission is to protect, restore, and promote healthy waters of the St. Johns River, its tributaries, springs, and wetlands -- including Silver Springs, the Silver River, and the Ocklawaha River -- through citizen- based advocacy. A substantial number of St. Johns Riverkeeper’s more than 1,000 members use and enjoy the St. Johns River, the Silver River, Silver Springs, and the Ocklawaha River for boating, fishing, wildlife observation, and other water-based recreational activities. Karen Ahlers is a native of Putnam County, Florida, and lives approximately 15 miles from the Applicant’s property on which the permitted uses will be conducted. Ms. Ahlers currently uses the Ocklawaha River for canoeing, kayaking, and swimming, and enjoys birding and nature photography on and around the Silver River. Over the years, Ms. Ahlers has advocated for the restoration and protection of the Ocklawaha River, as an individual and as a past-president of the Putnam County Environmental Council. Jeri Baldwin lives on a parcel of property in the northeast corner of Marion County, approximately one mile from the Applicant’s property on which the permitted uses will be conducted. Ms. Baldwin, who was raised in the area, and whose family and she used the resources extensively in earlier years, currently uses the Ocklawaha River for boating. Florida Defenders of the Environment (FDE) is a Florida corporation, the mission of which is to conserve and protect and restore Florida's natural resources and to conduct environmental education projects. A substantial number of FDE’s 186 members, of which 29 reside in Marion County, Florida, use and enjoy Silver Springs, the Silver River, and the Ocklawaha Aquatic Preserve, and their associated watersheds in their educational and outreach activities, as well as for various recreational activities including boating, fishing, wildlife observation, and other water-based recreational activities. Sleepy Creek Lands, LLC (Sleepy Creek or Applicant), is an entity registered with the Florida Department of State to do business in the state of Florida. Sleepy Creek owns approximately 21,000 acres of land in Marion County, Florida, which includes the East Tract and the North Tract on which the activities authorized by the permits are proposed. St. Johns River Water Management District (SJRWMD or District) is a water-management district created by section 373.069(1). It has the responsibility to conserve, protect, manage, and control the water resources within its geographic boundaries. See § 373.069(2)(a), Fla. Stat. The Consumptive Use Permit The CUP is a modification and consolidation of two existing CUP permits, CUP No. 2-083-3011-7 and CUP No. 2-083- 91926-2, which authorize the withdrawal of 1.46 mgd from wells located on the East Tract. Although the existing CUP permits authorize an allocation of 1.46 mgd, actual use has historically been far less, and rarely exceeded 0.3 mgd. The proposed CUP modification will convert the authorized use of water from irrigation of 1,010 acres of sod grass on the East Tract, to supplemental irrigation of improved pasture for grass and other forage crops (approximately 97 percent of the proposed withdrawals) and cattle watering (approximately three percent of the proposed withdrawals) on the North Tract and the East Tract. An additional very small amount will be used in conjunction with the application of agricultural chemicals. CUP No. 2-083-3011-7 is due to expire in 2021. CUP No. 2-083-91926-2 is due to expire in 2024. In addition to the consolidation of the withdrawals into a single permit, the proposed agency action would extend the term of the consolidated permit to 20 years from issuance, with the submission of a compliance report due 10 years from issuance. Sleepy Creek calculated a water demand of 2.569 mgd for the production of grasses and forage crops necessary to meet the needs for grass-fed beef production, based on the expected demand in a 2-in-10 drought year. That calculation is consistent with that established in CUP Applicant’s Handbook (CUP A.H.) section 12.5.1. The calculated amount exceeds the authorized average allocation of 1.46 mgd. Mr. Jenkins testified as to the District’s understanding that the requested amount would be sufficient, since the proposed use was a “scaleable-type project,” with adjustments to cattle numbers made as necessary to meet the availability of feed. Regardless of demand, the proposed permit establishes the enforceable withdrawal limits applicable to the property. With regard to the East Tract, the proposed agency action reduces the existing 1.46 mgd allocation for that tract to a maximum allocation of 0.464 mgd, and authorizes the irrigation of 611 acres of pasture grass using existing extraction wells and six existing pivots. With regard to the North Tract, the proposed agency action authorizes the irrigation of 1,620 acres of pasture and forage grain crops using 15 center pivot systems. Extraction wells to serve the North Tract pivots will be constructed on the North Tract. The proposed North Tract withdrawal wells are further from Silver Springs than the current withdrawal locations. The proposed CUP allows Sleepy Creek to apply the allocated water as it believes to be appropriate to the management of the cattle operation. Although the East Tract is limited to a maximum of 0.464 mgd, there is no limitation on the North Tract. Thus, Sleepy Creek could choose to apply all of the 1.46 mgd on the North Tract. For that reason, the analysis of impacts from the irrigation of the North Tract has generally been based on the full 1.46 mgd allocation being drawn from and applied to the North Tract. The Environmental Resource Permit As initially proposed, the CUP had no elements that would require issuance of an ERP. However, in order to control the potential for increased runoff and nutrient loading resulting from the irrigation of the pastures, Sleepy Creek proposes to construct a stormwater management system to capture runoff from the irrigated pastures, consisting of a series of vegetated upland buffers, retention berms and redistribution swales between the pastures and downgradient wetland features. Because the retention berm and swale system triggered the permitting thresholds in rule 62-330.020(2)(d) (“a total project area of more than one acre”) and rule 62-330.020(2)(e) (“a capability of impounding more than 40 acre-feet of water”), Sleepy Creek was required to obtain an Environmental Resource Permit for its construction. Regional Geologic Features To the west of the North Tract is a geologic feature known as the Ocala Uplift or Ocala Platform, in which the limestone that comprises the Floridan aquifer system exists at or very near the land surface. Karst features, including subterranean conduits and voids that can manifest at the land surface as sinkholes, are common in the Ocala Uplift due in large part to the lack of consolidated or confining material overlaying the limestone. Water falling on the surface of such areas tends to infiltrate rapidly through the soil into the Floridan aquifer, occasionally through direct connections such as sinkholes. The lack of confinement in the Ocala Uplift results in few if any surface-water features such as wetlands, creeks, and streams. As one moves east from the Ocala Uplift, a geologic feature known as the Cody Escarpment becomes more prominent. In the Cody Escarpment, the limestone becomes increasingly overlain by sands, shell, silt, clays, and other less permeable sediments of the Hawthorn Group. The North Tract and the East Tract lie to the east of the point at which the Cody Escarpment becomes apparent. As a result, water tends to flow overland to wetlands and other surface water features. The Property The North and East Tracts are located in northern Marion County near the community of Fort McCoy. East Tract Topography and Historic Use The East Tract is located in the Daisy Creek Basin, and includes the headwaters of a small creek that drains directly to the Ocklawaha River. The historic use of the East Tract has been as a cleared 1,010-acre sod farm. The production of sod included irrigation, fertilization, and pest control. Little change in the topography, use, and appearance of the property will be apparent as a result of the permits at issue, but for the addition of grazing cattle. The current CUPs that are subject to modification in this proceeding authorize groundwater withdrawals for irrigation of the East Tract at the rate of 1.46 mgd. Since the proposed agency action has the result of reducing the maximum withdrawal from wells on the East Tract to 0.464 mgd, thus proportionately reducing the proposed impacts, there was little evidence offered to counter Sleepy Creek’s prima facie case that reasonable assurance was provided that the proposed East Tract groundwater withdrawal allocation will meet applicable CUP standards. There are no stormwater management structures to be constructed on the East Tract. Therefore, the ERP permit discussed herein is not applicable to the East Tract. North Tract Topography and Historic Use The North Tract has a generally flat topography, with elevations ranging from 45 feet to 75 feet above sea level. The land elevation is highest at the center of the North Tract, with the land sloping towards the Ocklawaha River to the east, and to several large wet prairie systems to the west. Surface water features on the North Tract include isolated, prairie, and slough-type wetlands on approximately 28 percent of the North Tract, and a network of creeks, streams, and ditches, including the headwaters of Mill Creek, a contributing tributary of the Ocklawaha River. A seasonal high groundwater elevation on the North Tract is estimated at 6 to 14 inches below ground surface. The existence of defined creeks and surface water features supports a finding that the North Tract is underlain by a relatively impermeable confining layer that impedes the flow of water from the surface and the shallow surficial aquifer to the upper Floridan and lower Floridan aquifers. If there was no confining unit, water going onto the surface of the property, either in the form of rain or irrigation water, would percolate unimpeded to the lower aquifers. Areas in the Ocala Uplift to the west of the North Tract, where the confining layer is thinner and discontiguous, contain few streams or runoff features. Historically, the North Tract was used for timber production, with limited pasture and crop lands. At the time the 7,207-acre North Tract was purchased by Sleepy Creek, land use consisted of 4,061 acres of planted pine, 1,998 acres of wetlands, 750 acres of improved pasture, 286 acres of crops, 78 acres of non-forested uplands, 20 acres of native forest, 10 acres of open water, and 4 acres of roads and facilities. Prior to the submission of the CUP and ERP applications, much of the planted pine was harvested, and the land converted to improved pasture. Areas converted to improved pasture include those proposed for irrigation, which have been developed in the circular configuration necessary for future use with center irrigation pivots. As a result of the harvesting of planted pine, and the conversion of about 345 acres of cropland and non-forested uplands to pasture and incidental uses, total acreage in pasture on the North Tract increased from 750 acres to 3,938 acres. Other improvements were constructed on the North Tract, including the cattle processing facility. Aerial photographs suggest that the conversion of the North Tract to improved pasture and infrastructure to support a cattle ranch is substantially complete. The act of converting the North Tract from a property dominated by planted pine to one dominated by improved pasture, and the change in use of the East Tract from sod farm to pasture, were agricultural activities that did not require a permit from the District. As such, there is no impropriety in considering the actual, legal use of the property in its current configuration as the existing use for which baseline conditions are to be measured. Petitioners argue that the baseline conditions should be measured against the use of the property as planted pine plantation, and that Sleepy Creek should not be allowed to “cattle-up” before submitting its permit applications, thereby allowing the baseline to be established as a higher impact use. However, the applicable rules and statutes provide no retrospective time-period for establishing the nature of a parcel of property other than that lawfully existing when the application is made. See West Coast Reg’l Water Supply Auth. v. SW Fla. Water Mgmt. Dist., Case No. 95-1520 et seq., ¶ 301 (Fla. DOAH May 29, 1997; SFWMD ) (“The baseline against which projected impacts conditions [sic] are those conditions, including previously permitted adverse impacts, which existed at the time of the filing of the renewal applications.”). The evidence and testimony in this case focused on the effects of the water allocation on the Floridan aquifer, Silver Springs, and the Silver River, and on the effects of the irrigation on water and nutrient transport from the properties. It was not directed at establishing a violation of chapter 373, the rules of the SJRWMD, or the CUP Applicant’s Handbook with regard to the use and management of the agriculturally-exempt unirrigated pastures, nor did it do so. Soil Types Soils are subject to classifications developed by the Soil Conservation Service based on their hydrologic characteristics, and are grouped into Group A, Group B, Group C, or Group D. Factors applied to determine the appropriate hydrologic soil group on a site-specific basis include depth to seasonal high saturation, the permeability rate of the most restrictive layer within a certain depth, and the depth to any impermeable layers. Group A includes the most well-drained soils, and Group D includes the most poorly-drained soils. Group D soils are those with seasonal high saturation within 24 inches of the soil surface and a higher runoff potential. The primary information used to determine the hydrologic soil groups on the North Tract was the depth to seasonal-high saturation, defined as the highest expected annual elevation of saturation in the soil. Depth to seasonal-high saturation was measured through a series of seven hand-dug and augered soil borings completed at various locations proposed for irrigation across the North Tract. In determining depth to seasonal-high saturation, the extracted soils were examined based on depth, color, texture, and other relevant characteristics. In six of the seven locations at which soil borings were conducted, a restrictive layer was identified within 36 inches of the soil surface. At one location at the northeastern corner of the North Tract, the auger hole ended at a depth of 48 inches -- the length of the auger -- at which depth there was an observable increase in clay content but not a full restrictive layer. However, while the soil assessment was ongoing, a back-hoe was in operation approximately one hundred yards north of the boring location. Observations of that excavation revealed a heavy clay layer at a depth of approximately 5 feet. In each of the locations, the depth to seasonal-high saturation was within 14 inches of the soil surface. Based on the consistent observation of seasonal-high saturation at each of the sampled locations, as well as the flat topography of the property with surface water features, the soils throughout the property, with the exception of a small area in the vicinity of Pivot 6, were determined to be in hydrologic soil Group D. Hydrogeologic Features There are generally five hydrogeologic units underlying the North Tract, those units being the surficial aquifer system, the intermediate confining unit, the upper Floridan aquifer, the middle confining unit, and the lower Floridan aquifer. In areas in which a confining layer is present, water falling on the surface of the land flows over the surface of the land or across the top of the confining layer. A surficial aquifer, with a relatively high perched water table, is created by the confinement and separation of surface waters from the upper strata of the Floridan aquifer. Surface waters are also collected in or conveyed by various surface water features, including perched wetlands, creeks, and streams. The preponderance of the evidence adduced at the final hearing demonstrates that the surficial aquifer exists on the property to a depth of up to 20 feet below the land surface (bls). Beneath the surficial aquifer is an intermediate confining unit of dense clay interspersed with beds of sand and calcareous clays that exists to a depth of up to 100 feet bls. The clay material observed on the North Tract is known as massive or structureless. Such clays are restrictive with very low levels of hydraulic conductivity, and are not conducive to development of preferential flow paths to the surficial or lower aquifers. The intermediate confining unit beneath the North Tract restricts the exchange of groundwater from the surficial aquifer to the upper Floridan aquifer. The upper Floridan aquifer begins at a depth of approximately 100 feet bls, and extends to a depth of approximately 340 feet bls. At about 340 feet bls, the upper Floridan aquifer transitions to the middle confining unit, which consists of finely grained, denser material that separates the interchange of water between the upper Floridan aquifer and the lower Floridan aquifer. Karst Features Karst features form as a result of water moving through rock that comprises the aquifer, primarily limestone, dissolving and forming conduits in the rock. Karst areas present a challenging environment to simulate through modeling. Models assume the subsurface to be a relatively uniform “sand box” through which it is easier to simulate groundwater flow. However, if the subsurface contains conduits, it becomes more difficult to simulate the preferential flows and their effect on groundwater flow paths and travel times. The District has designated parts of western Alachua County and western Marion County as a Sensitive Karst Area Basin. A Sensitive Karst Area is a location in which the porous limestone of the Floridan aquifer occurs within 20 feet of the land surface, and in which there is 10 to 20 inches of annual recharge to the Floridan aquifer. The designation of an area as being within the Sensitive Karst Area Basin does not demonstrate that it does, or does not, have subsurface features that are karstic in nature, or that would provide a connection between the surficial aquifer and the Floridan aquifer. The western portion of the North Tract is within the Sensitive Karst Area Basin. The two intensive-use areas on the North Tract that have associated stormwater facilities -- the cattle unloading area and the processing facility -- are outside of the Sensitive Karst Area Basin. The evidence was persuasive that karst features are more prominent to the west of the North Tract. In order to evaluate the presence of karst features on the North Tract, Mr. Andreyev performed a “desktop-type evaluation,” with a minimal field survey. The desktop review included a review of aerial photographs and an investigation of available data, including the Florida Geological Survey database of sinkhole occurrence in the area. The aerial photographs showed circular depressions suggestive of karst activity west and southwest of the North Tract, but no such depressions on the North Tract. Soil borings taken on the North Tract indicated the presence of layers of clayey sand, clays, and silts at a depth of 70 to 80 feet. Well-drilling logs taken during the development of the wells used for an aquifer performance test on the North Tract showed the limestone of the Floridan aquifer starting at a depth below ground surface of 70 to 80 feet. Other boring data generated on the North Tract suggests that there is greater than 100 feet of clay and sandy clay overburden above the Floridan aquifer on and in the vicinity of the North Tract. Regardless of site-specific differences, the observed confining layer separating the surficial aquifer from the Floridan aquifer is substantial, and not indicative of a karst environment. Aquifer performance tests performed on the North Tract were consistent in showing that drawdown in the surficial aquifer from the tests was minimal to non-detectable, which is strong evidence of an intact and low-permeability confining layer. The presence of well-developed drainage features on the North Tract is further evidence of a unit of confinement that is restricting water from going deeper into the subsurface, and forcing it to runoff to low-lying surface water features. Petitioners’ witnesses did not perform any site- specific analysis of karst features on or around the Sleepy Creek property. Their understanding of the nature of the karst systems in the region was described as “hypothetical or [] conceptual.” Dr. Kincaid admitted that he knew of no conduits on or adjacent to the North Tract. As a result of the data collected from the North Tract, Mr. Hearn opined that the potential for karst features on the property that provide an opening to the upper Floridan aquifer “is extremely remote.” Mr. Hearn’s opinion is consistent with the preponderance of the evidence in this case, and is accepted. In the event a surface karst feature were to manifest itself, Sleepy Creek has proposed that the surface feature be filled and plugged to reestablish the integrity of the confining layer. More to the point, the development of a surficial karst feature in an area influenced by irrigation would be sufficient grounds for the SJRWMD to reevaluate and modify the CUP to account for any changed conditions affecting the assumptions and bases for issuance of the CUP. Silver Springs, the Silver River, and the Ocklawaha River The primary, almost exclusive concern of Petitioners was the effect of the modified CUP and the nutrients from the proposed cattle ranch on Silver Springs, the Silver River, and the Ocklawaha River. Silver Springs Silver Springs has long been a well-known attraction in Florida. It is located just to the east of Ocala, Florida. Many of the speakers at the public comment period of this proceeding spoke fondly of having frequented Silver Springs over the years, enjoying its crystal clear waters through famous glass-bottomed boats. For most of its recorded history, Silver Springs was the largest spring by volume in Florida. Beginning in the 1970s, it began to lose its advantage, and by the year 2000, Rainbow Springs, located in southwestern Marion County, surpassed Silver Springs as the state’s largest spring. Silver Springs exists at the top of the potentiometric surface of the Floridan aquifer. Being at the “top of the mountain,” when water levels in the Floridan aquifer decline, groundwater flow favors the lower elevation springs. Thus, surrounding springshed boundaries expand to take more water to maintain their baseflows, at the expense of the Silver Springs springshed, which contracts. Rainbow Springs shares an overlapping springshed with Silver Springs. The analogy used by Dr. Knight was of the aquifer as a bucket with holes at different levels, and with the Silver Springs “hole” near the top of the bucket. When the water level in the bucket is high, water will flow from the top hole. As the water level drops below that hole, it will preferentially flow from the lower holes. Rainbow Springs has a vent or outlet from the aquifer, that is 10 feet lower in elevation than that of Silver Springs. Coastal springs are lower still. Thus, as groundwater levels decline, the lower springs “pirate flow” from the upper springs. Since the first major studies of Silver Springs were conducted in the 1950s, the ecosystem of Silver Springs has undergone changes. The water clarity, though still high as compared to other springs, has been reduced by 10 to 15 percent. Since the 1950s, macrophytic plants, i.e., rooted plants with seeds and flowers, have declined in population, while epiphytic and benthic algae have increased. Those plants are sensitive to increases in nitrogen in the water. Thus, Dr. Knight’s opinion that increases in nitrogen emerging from Silver Springs, calculated to have risen from just over 0.4 mg/l in the 1950s, to 1.1 mg/l in 2004, and to up to 1.5 mg/l at present,1/ have caused the observed vegetative changes is accepted. Silver River Silver Springs forms the headwaters for the Silver River, a spring run 5 1/2 miles in length, at which point it becomes a primary input to the Ocklawaha River. Issues of water clarity and alteration of the vegetative regime that exist at Silver Springs are also evident in the Silver River. In addition, the reduction in flow allows for more tannic water to enter the river, further reducing clarity. Dr. Dunn recognized the vegetative changes in the river, and opined that the “hydraulic roughness” caused by the increase in vegetation is likely creating a spring pool backwater at Silver Springs, thereby suppressing some of the flow from the spring. The Silver River has been designated as an Outstanding Florida Water. There are currently no Minimum Flows and Levels established by the District for the Silver River. Ocklawaha River The Ocklawaha River originates near Leesburg, Florida, at the Harris Chain of Lakes, and runs northward past Silver Springs. The Silver River is a major contributor to the flow of the Ocklawaha River. Due to the contribution of the Silver River and other spring-fed tributaries, the Ocklawaha River can take on the appearance of a spring run during periods of low rainfall. Historically, the Ocklawaha River flowed unimpeded to its confluence with the St. Johns River in the vicinity of Palatka, Florida. In the 1960s, as part of the Cross-Florida Barge Canal project, the Rodman Dam was constructed across the Ocklawaha River north of the Sleepy Creek property, creating a large reservoir known as the Rodman Pool. Dr. Knight testified convincingly that the Rodman Dam and Pool have altered the Ocklawaha River ecosystem, precipitating a decline in migratory fish populations and an increase in filamentous algae. At the point at which the Ocklawaha River flows past the Sleepy Creek property, it retains its free-flowing characteristics. Mill Creek, which has its headwaters on the North Tract, is a tributary of the Ocklawaha River. The Ocklawaha River, from the Eureka Dam south, has been designated as an Outstanding Florida Water. However, the Ocklawaha River at the point at which Mill Creek or other potential surface water discharges from the Sleepy Creek property might enter the river are not included in the Outstanding Florida Water designation. There are currently no Minimum Flows and Levels established by the District for the Ocklawaha River. The Silver Springs Springshed A springshed is that area from which a spring draws water. Unlike a surface watershed boundary, which is fixed based on land features, contours, and elevations, a springshed boundary is flexible, and changes depending on a number of factors, including rainfall. As to Silver Springs, its springshed is largest during periods of more abundant rainfall when the aquifer is replenished, and smaller during drier periods when groundwater levels are down, and water moves preferentially to springs and discharge points that are lower in elevation. The evidence in this case was conflicting as to whether the North Tract is in or out of the Silver Springs springshed boundary. Dr. Kincaid indicated that under some of the springshed delineations, part of the North Tract was out of the springshed, but over the total period of record, it is within the springshed. Thus, it was Dr. Kincaid’s opinion that withdrawals anywhere within the region will preferentially impact Silver Springs, though he admitted that he did not have the ability to quantify his opinion. Dr. Knight testified that the North Tract is within the Silver Springs “maximum extent” springshed at least part of the time, if not all the time. He did not opine as to the period of time in which the Silver Springs springshed was at its maximum extent. Dr. Bottcher testified that the North Tract is not within the Silver Springs springshed because there is a piezometric rise between North Tract and Silver Springs. Thus, in his opinion, withdrawals at the North Tract would not be withdrawing water going to Silver Springs. Dr. Dunn agreed that the North Tract is on the groundwater divide for Silver Springs. In his view, the North Tract is sometimes in, and sometimes out of the springshed depending on the potentiometric surface. In his opinion, the greater probability is that the North Tract is more often outside of the Silver Springs springshed, with seasonal and year—to—year variation. Dr. Dunn’s opinion provides the most credible explanation of the extent to which the North Tract sits atop that portion of the lower Floridan aquifer that feeds to Silver Springs. Thus, it is found that the groundwater divide exists to the south of the North Tract for a majority of the time, and water entering the Floridan aquifer from the North Tract will, more often than not, flow away from Silver Springs. Silver Springs Flow Volume The Silver Springs daily water discharge has been monitored and recorded since 1932. Over the longest part of the period of record, up to the 1960s, flows at Silver Springs averaged about 800 cubic feet per second (cfs). Through 1989, there was a reasonable regression between rainfall and springflow, based on average rainfalls. The long-term average rainfall in Ocala was around 50 inches per year, and long-term springflow was about 800 cfs, with deviations from average generally consistent with one another. Between 1990 and 1999, the relationship between rainfall and springflow declined by about 80 cubic feet per second. Thus, with average rainfall of 50 inches per year, the average springflow was reduced to about 720 cfs. From 2000 to 2009, there was an additional decline, such that the total cumulative decline for the 20-year period through 2009 was 250 cfs. Dr. Dunn agreed with Dr. Knight that after 2000, there was an abrupt and persistent reduction in flow of about 165 cfs. However, Dr. Dunn did not believe the post-2000 flow reduction could be explained by rainfall directly, although average rainfall was less than normal. Likewise, groundwater withdrawals did not offer an adequate explanation. Dr. Dunn described a natural 30-year cycle of wetter and drier periods known as the Atlantic Multidecadal Oscillation (AMO) that has manifested itself over the area for the period of record. From the 1940s up through 1970, the area experienced an AMO wet cycle with generally higher than normal rainfall at the Ocala rain station. For the next 30-year period, from 1970 up to 2000, the Ocala area ranged from a little bit drier to some years in which it was very, very dry. Dr. Dunn attributed the 80 cfs decline in Silver Springs flow recorded in the 1990s to that lower rainfall cycle. After 2000, when the next AMO cycle would be expected to build up, as it did post—1940, it did not happen. Rather, there was a particularly dry period around 2000 that Dr. Dunn believes to have had a dramatic effect on the lack of recovery in the post-2000 flows in the Silver River. According to Mr. Jenkins, that period of deficient rainfall extended through 2010. Around the year 2001, the relationship between rainfall and flow changed such that for a given amount of rainfall, there was less flow in the Silver River, with flow dropping to as low as 535 cfs after 2001. It is that reduction in flow that Dr. Knight has attributed to groundwater withdrawals. It should be noted that the observed flow of Silver Springs that formed the 1995 baseline conditions for the North Central Florida groundwater model that will be discussed herein was approximately 706 cfs. At the time of the final hearing in August 2014, flow at Silver Springs was 675 cfs. The reason offered for the apparent partial recovery was higher levels of rainfall, though the issue was not explored in depth. For the ten-year period centered on the year 2000, local water use within Marion and Alachua County, closer to Silver Springs, changed little -- around one percent per year. From a regional perspective, groundwater use declined at about one percent per year for the period from 1990 to 2010. The figures prepared by Dr. Knight demonstrate that the Sleepy Creek project area is in an area that has a very low density of consumptive use permits as compared to areas adjacent to Silver Springs and more clearly in the Silver Springs springshed. In Dr. Dunn’s opinion, there were no significant changes in groundwater use either locally or regionally that would account for the flow reduction in Silver Springs from 1990 to 2010. In that regard, the environmental report prepared by Dr. Dunn and submitted with the CUP modification application estimated that groundwater withdrawals accounted for a reduction in flow at Silver Springs of approximately 20 cfs as measured against the period of record up to the year 2000, with most of that reduction attributable to population growth in Marion County. In the March 2014, environmental impacts report, Dr. Dunn described reductions in the stream flow of not only the Silver River, but of other tributaries of the lower Ocklawaha River, including the upper Ocklawaha River at Moss Bluff and Orange Creek. However, an evaluation of the Ocklawaha River water balance revealed there to be additional flow of approximately 50 cfs coming into the Ocklawaha River at other stations. Dr. Dunn suggested that changes to the vent characteristics of Silver Springs, and the backwater effects of increased vegetation in the Silver River, have resulted in a redistribution of pressure to other smaller springs that discharge to the Ocklawaha River, accounting for a portion of the diminished flow at Silver Springs. The Proposed Cattle Operation Virtually all beef cattle raised in Florida, upon reaching a weight of approximately 875 pounds, are shipped to Texas or Kansas to be fattened on grain to the final body weight of approximately 1,150 pounds, whereupon they are slaughtered and processed. The United States Department of Agriculture has a certification for grass—fed beef which requires that, after an animal is weaned, it can only be fed on green forage crops, including grasses, and on corn and grains that are cut green and before they set seed. The forage crops may be grazed or put into hay or silage and fed when grass and forage is dormant. The benefit of grass feeding is that a higher quality meat is produced, with a corresponding higher market value. Sleepy Creek plans to develop the property as a grass- fed beef production ranch, with pastures and related loading/unloading and slaughter/processing facilities where calves can be fattened on grass and green grain crops to a standard slaughter weight, and then slaughtered and processed locally. By so doing, Sleepy Creek expects to save the transportation and energy costs of shipping calves to the Midwest, and to generate jobs and revenues by employing local people to manage, finish, and process the cattle. As they currently exist, pastures proposed for irrigation have been cleared and seeded, and have “fairly good grass production.” The purpose of the irrigation is to enhance the production and quality of the grass in order to maintain the quality and reliability of feed necessary for the production of grass-fed beef. East Tract Cattle Operation The East Tract is 1,242 acres in size, substantially all of which was previously cleared, irrigated, and used for sod production. The proposed CUP permit authorizes the irrigation of 611 acres of pasture under six existing center pivots. The remaining 631 acres will be used as improved, but unirrigated, pasture. Under the proposed permit, a maximum of 1,207 cattle would be managed on the East Tract. Of that number, 707 cattle would be grazed on the irrigated paddocks, and 500 cattle would be grazed on the unirrigated improved pastures. If the decision is made to forego irrigation on the East Tract, with the water allocation being used on the North Tract or not at all, the number of cattle grazed on the six center pivot pastures would be decreased from 707 cattle to 484 cattle. The historic use of the East Tract as a sod farm resulted in high phosphorus levels in the soil from fertilization, which has made its way to Daisy Creek. Sleepy Creek has proposed a cattle density substantially below that allowed by application of the formulae in the Nutrient Management Plan in order to “mine” the phosphorus levels in the soil over time. North Tract Cattle Operation The larger North Tract includes most of the “new” ranch activities, having no previous irrigation, and having been put to primarily silvicultural use with limited pasture prior to its acquisition by Sleepy Creek. The ranch’s more intensive uses, i.e., the unloading corrals and the slaughter house, are located on the North Tract. The North Tract is 7,207 acres in size. Of that, 1,656 acres are proposed for irrigation by means of 15 center- pivot irrigation systems. In addition to the proposed irrigated pastures, the North Tract includes 2,382 acres of unirrigated improved pasture, of which approximately 10 percent is wooded. Under the proposed permit, a maximum of 6,371 cattle would be managed on the North Tract. Of that number, 3,497 cattle would be grazed on the irrigated paddocks (roughly 2.2 head of cattle per acre), and 2,374 cattle would graze on the improved pastures (up to 1.1 head of cattle per acre). The higher cattle density in the irrigated pastures can be maintained due to the higher quality grass produced as a result of irrigation. The remaining 500 cattle would be held temporarily in high-concentration corrals, either after offloading or while awaiting slaughter. On average, there will be fewer than 250 head of cattle staged in those high-concentration corrals at any one time. In the absence of irrigation, the improved pasture on the North Tract could sustain about 4,585 cattle. Nutrient Management Plan, Water Conservation Plan, and BMPs The CUP and ERP applications find much of their support in the implementation of the Nutrient Management Plan (NMP), the Water Conservation Plan, and Best Management Practices (BMPs). The NMP sets forth information designed to govern the day to day operations of the ranch. Those elements of the NMP that were the subject of substantive testimony and evidence at the hearing are discussed herein. Those elements not discussed herein are found to have been supported by Sleepy Creek’s prima facie case, without a preponderance of competent and substantial evidence to the contrary. The NMP includes a herd management plan, which describes rotational grazing and the movement of cattle from paddock to paddock, and establishes animal densities designed to maintain a balance of nutrients on the paddocks, and to prevent overgrazing. The NMP establishes fertilization practices, with the application of fertilizer based on crop tissue analysis to determine need and amount. Thus, the application of nitrogen- based fertilizer is restricted to that capable of ready uptake by the grasses and forage crops, limiting the amount of excess nitrogen that might run off of the pastures or infiltrate past the root zone. The NMP establishes operation and maintenance plans that incorporate maintenance and calibration of equipment, and management of high-use areas. The NMP requires that records be kept of, among other things, soil testing, nutrient application, herd rotation, application of irrigation water, and laboratory testing. The irrigation plan describes the manner and schedule for the application of water during each irrigation cycle. Irrigation schedules for grazed and cropped scenarios vary from pivot to pivot based primarily on soil type. The center pivots proposed for use employ high-efficiency drop irrigation heads, resulting in an 85 percent system efficiency factor, meaning that there is an expected evaporative loss of 15 percent of the water before it becomes available as water in the soil. That level of efficiency is greater than the system efficiency factor of 80 percent established in CUP A.H. section 12.5.2. Other features of the irrigation plan include the employment of an irrigation manager, installation of an on-site weather station, and cumulative tracking of rain and evapotranspiration with periodic verification of soil moisture conditions. The purpose of the water conservation practices is to avoid over application of water, limiting over-saturation and runoff from the irrigated pastures. Sleepy Creek has entered into a Notice of Intent to Implement Water Quality BMPs with the Florida Department of Agriculture and Consumer Services which is incorporated in the NMP and which requires the implementation of Best Management Practices.2/ Dr. Bottcher testified that implementation and compliance with the Water Quality Best Management Practices manual creates a presumption of compliance with water quality standards. His testimony in that regard is consistent with Department of Agriculture and Consumer Services rule 5M-11.003 (“implementation, in accordance with adopted rules, of BMPs that have been verified by the Florida Department of Environmental Protection as effective in reducing target pollutants provides a presumption of compliance with state water quality standards.”). Rotational Grazing Rotational grazing is a practice by which cattle are allowed to graze a pasture for a limited period of time, after which they are “rotated” to a different pasture. The 1,656 acres proposed for irrigation on the North Tract are to be divided into 15 center-pivot pastures. Each individual pasture will have 10 fenced paddocks. The 611 acres of irrigated pasture on the East Tract are divided into 6 center-pivot pastures. The outer fence for each irrigated pasture is to be a permanent “hard” fence. Separating the internal paddocks will be electric fences that can be lowered to allow cattle to move from paddock to paddock, and then raised after they have moved to the new paddock. The NMP for the North Tract provides that cattle are to be brought into individual irrigated pastures as a single herd of approximately 190 cattle and placed into one of the ten paddocks. They will be moved every one to three days to a new paddock, based upon growing conditions and the reduction in grass height resulting from grazing. In this way, the cattle are rotated within the irrigated pasture, with each paddock being used for one to three days, and then rested until each of the other paddocks have been used, whereupon it will again be used in the rotation. The East Tract NMP generally provides for rotation based on the height of the pasture grasses, but is designed to provide a uniform average of cattle per acre per year. Due to the desire to “mine” phosphorus deposited during the years of operation of the East Tract as a sod farm, the density of cattle on the irrigated East Tract pastures is about 30 percent less than that proposed for the North Tract. The East Tract NMP calls for a routine pasture rest period of 15 to 30 days. Unlike dairy farm pastures, where dairy cows traverse a fixed path to the milking barn several times a day, there will be minimal “travel lanes” within the pastures or between paddocks. There will be no travel lanes through wetlands. If nitrogen-based fertilizer is needed, based upon tissue analysis of the grass, fertilizer is proposed for application immediately after a paddock is vacated by the herd. By so doing, the grass within each paddock will have a sufficient period to grow and “flush up” without grazing or traffic, which results in a high—quality grass when the cattle come back around to feed. Sleepy Creek proposes that rotational grazing is to be practiced on improved pastures and irrigated pastures alike. The rotational practices on the improved East Tract and North Tract pastures are generally similar to those practiced on the irrigated pastures. The paddocks will have permanent watering troughs, with one trough serving two adjacent paddocks. The troughs will be raised to prevent “boggy areas” from forming around the trough. Since the area around the troughs will be of a higher use, Sleepy Creek proposes to periodically remove accumulated manure, and re-grade if necessary. Other cattle support items, including feed bunkers and shade structures are portable and can be moved as conditions demand. Forage Crop Production The primary forage crop on the irrigated pastures is to be Bermuda grass. Bermuda grass or other grass types tolerant of drier conditions will be used in unirrigated pastures. During the winter, when Bermuda grass stops growing, Sleepy Creek will overseed the North Tract pastures with ryegrass or other winter crops. Due to the limitation on irrigation water, the East Tract NMP calls for no over-seeding for production of winter crops. Crops do not grow uniformly during the course of a year. Rather, there are periods during which there are excess crops, and periods during which the crops are not growing enough to keep up with the needs of the cattle. During periods of excess, Sleepy Creek will cut those crops and store them as haylage to be fed to the cattle during lower growth periods. The North Tract management plan allows Sleepy Creek to dedicate one or more irrigated pastures for the exclusive production of haylage. If that option is used, cattle numbers will be reduced in proportion to the number of pastures dedicated to haylage production. As a result of the limit on irrigation, the East Tract NMP does not recommend growing supplemental feed on dedicated irrigation pivot pastures. Direct Wetland Impacts Approximately 100 acres proposed for irrigation are wetlands or wetland buffer. Those areas are predominantly isolated wetlands, though some have surface water connections to Mill Creek, a water of the state. Trees will be cut in the wetlands to allow the pivot to pass overhead. Tree cutting is an exempt agricultural activity that does not require a permit. There was no persuasive evidence that cutting trees will alter the fundamental benefit of the wetlands or damage water resources of the District. The wetlands and wetland buffer will be subject to the same watering and fertigation regimen as the irrigated pastures. The application of water to wetlands, done concurrently with the application of water to the pastures, will occur during periods in which the pasture soils are dry. The incidental application of water to the wetlands during dry periods will serve to maintain hydration of the wetlands, which is considered to be a benefit. Fertilizers will be applied through the irrigation arms, a process known as fertigation. Petitioners asserted that the application of fertilizer onto the wetlands beneath the pivot arms could result in some adverse effects to the wetlands. However, Petitioners did not quantify to what extent the wetlands might be affected, or otherwise describe the potential effects. Fertigation of the wetlands will promote the growth of wetland plants. Nitrogen applied through fertigation will be taken up by plants, or will be subject to denitrification -- a process discussed in greater detail herein -- in the anaerobic wetland soils. The preponderance of the evidence indicated that enhanced wetland plant growth would not rise to a level of concern. Since most of the affected wetlands are isolated wetlands, there is expected to be little or no discharge of nutrients from the wetlands. Even as to those wetlands that have a surface water connection, most, if not all of the additional nitrogen applied through fertigation will be accounted for by the combined effect of plant uptake and denitrification. Larger wetland areas within an irrigated pasture will be fenced at the buffer line to prevent cattle from entering. The NMP provided a blow-up of the proposed fencing related to a larger wetland on Pivot 8. Although other figures are not to the same scale, it appears that larger wetlands associated with Pivots 1, 2, 3, and 12 will be similarly fenced. Cattle would be allowed to go into the smaller, isolated wetlands. Cattle going into wetlands do not necessarily damage the wetlands. Any damage that may occur is a function of density, duration, and the number of cattle. The only direct evidence of potential damage to wetlands was the statement that “[i]f you have 6,371 [cattle] go into a wetland, there may be impacts.” The NMP provides that pasture use will be limited to herds of approximately 190 cattle, which will be rotated from paddock to paddock every two to three days, and which will allow for “rest” periods of approximately 20 days. There will be no travel lanes through any wetland. Thus, there is no evidence to support a finding that the cattle at the density, duration, and number proposed will cause direct adverse effects to wetlands on the property. High Concentration Areas Cattle brought to the facility are to be unloaded from trucks and temporarily corralled for inspection. For that period, the cattle will be tightly confined. Cattle that have reached their slaughter weight will be temporarily held in corrals associated with the processing plant. The stormwater retention ponds used to capture and store runoff from the offloading corral and the processing plant holding corral are part of a normal and customary agricultural activity, and are not part of the applications and approvals that are at issue in this proceeding. The retention ponds associated with the high-intensity areas do not require permits because they do not exceed one acre in size or impound more than 40 acre-feet of water. Nonetheless, issues related to the retention ponds were addressed by Petitioners and Sleepy Creek, and warrant discussion here. The retention ponds are designed to capture 100 percent of the runoff and entrained nutrients from the high concentration areas for a minimum of a 24—hour/25—year storm event. If rainfall occurs in excess of the designed storm, the design is such that upon reaching capacity, only new surface water coming to the retention pond will be discharged, and not that containing high concentrations of nutrients from the initial flush of stormwater runoff. Unlike the stormwater retention berms for the pastures, which are to be constructed from the first nine inches of permeable topsoil on the property, the corral retention ponds are to be excavated to a depth of six feet which, based on soil borings in the vicinity, will leave a minimum of two to four feet of clay beneath the retention ponds. In short, the excavation will penetrate into the clay layer underlying the pond sites, but will not penetrate through that layer. The excavated clay will be used to form the side slopes of the ponds, lining the permeable surficial layer and generally making the ponds impermeable. Organic materials entering the retention ponds will form an additional seal. An organic seal is important in areas in which retention ponds are constructed in sandy soil conditions. Organic sealing is less important in this case, where clay forms the barrier preventing nutrients from entering the surficial aquifer. Although the organic material is subject to periodic removal, the clay layer will remain to provide the impermeable barrier necessary to prevent leakage from the ponds. Dr. Bottcher testified that if, during excavation of the ponds, it was found that the remaining in-situ clay layer was too thin, Sleepy Creek would implement the standard practice of bringing additional clay to the site to ensure adequate thickness of the liner. Nutrient Balance The goal of the NMP is to create a balance of nutrients being applied to and taken up from the property. Nitrogen and phosphorus are the nutrients of primary concern, and are those for which specific management standards are proposed. Nutrient inputs to the NMP consist generally of deposition of cattle manure (which includes solid manure and urine), recycling of plant material and roots from the previous growing season, and application of supplemental fertilizer. Nutrient outputs to the NMP consist generally of volatization of ammonia to the atmosphere, uptake and utilization of the nutrients by the grass and crops, weight gain of the cattle, and absorption and denitrification of the nutrients in the soil. The NMP, and the various models discussed herein, average the grass and forage crop uptake and the manure deposition to match that of a 1,013 pound animal. That average weight takes into account the fact that cattle on the property will range from calf weight of approximately 850 pounds, to slaughter weight of 1150 pounds. Nutrients that are not accounted for in the balance, e.g., those that become entrained in stormwater or that pass through the plant root zone without being taken up, are subject to runoff to surface waters or discharge to groundwater. Generally, phosphorus not taken up by crops remains immobile in the soil. Unless there is a potential for runoff to surface waters, the nutrient balance is limited by the amount of nitrogen that can be taken up by the crops. Due to the composition of the soils on the property, the high water table, and the relatively shallow confining layer, there is a potential for surface runoff. Thus, the NMP was developed using phosphorus as the limiting nutrient, which results in nutrient application being limited by the “P-index.” A total of 108 pounds of phosphorus per acre/per year can be taken up and used by the irrigated pasture grasses and forage crops. Therefore, the total number of cattle that can be supported on the irrigated pastures is that which, as a herd, will deposit an average of 108 pounds of phosphorus per year over the irrigated acreage. Therefore, Sleepy Creek has proposed a herd size and density based on calculations demonstrating that the total phosphorus contained in the waste excreted by the cattle equals the amount taken up by the crops. A herd producing 108 pounds per acre per year of phosphorus is calculated to produce 147 pounds of nitrogen per acre per year. The Bermuda grass and forage crops proposed for the irrigated fields require 420 pounds of nitrogen per acre per year. As a result of the nitrogen deficiency, additional nitrogen-based fertilizer to make up the shortfall is required to maintain the crops. Since phosphorus needs are accounted for by animal deposition, the fertilizer will have no phosphorus. The NMP requires routine soil and plant tissue tests to determine the amount of nitrogen fertilizer needed. By basing the application of nitrogen on measured rather than calculated needs, variations in inputs, including plant decomposition and atmospheric deposition, and outputs, including those affected by weather, can be accounted for, bringing the full nutrient balance into consideration. The numeric values for crop uptakes, manure deposition, and other estimates upon which the NMP was developed were based upon literature, values, and research performed and published by the University of Florida and the Natural Resource Conservation Service. Dr. Bottcher testified convincingly that the use of such values is a proven and reliable method of developing a balance for the operation of similar agricultural operations. A primary criticism of the NMP was its expressed intent to “reduce” or “minimize” the transport of nutrients to surface waters and groundwater, rather than to “negate” or “prevent” such transport. Petitioners argue that complete prevention of the transport of nutrients from the property is necessary to meet the standards necessary for issuance of the CUP and ERP. Mr. Drummond went into some detail regarding the total mass of nutrients expected to be deposited onto the ground from the cattle, exclusive of fertilizer application. In the course of his testimony, he suggested that the majority of the nutrients deposited on the land surface “are going to make it to the surficial aquifer and then be carried either to the Floridan or laterally with the groundwater flow.” However, Mr. Drummond performed no analysis on the fate of nitrogen through uptake by crops, volatization, or soil treatment, and did not quantify the infiltration of nitrogen to groundwater. Furthermore, he was not able to provide any quantifiable estimate on any effect of nutrients on Mill Creek, the Ocklawaha River, or Silver Springs. In light of the effectiveness of the nutrient balance and other elements of the NMP, along with the retention berm system that will be discussed herein, Mr. Drummond’s assessment of the nutrients that might be expected to impact water resources of the District is contrary to the greater weight of the evidence. Mr. Drummond’s testimony also runs counter to that of Dr. Kincaid, who performed a particle track analysis of the fate of water recharge from the North Tract. In short, Dr. Kincaid calculated that of the water that makes it as recharge from the North Tract to the surficial aquifer, less than one percent is expected to make its way to the upper Floridan aquifer, with that portion originating from the vicinity of Pivot 6. Recharge from the other 14 irrigated pastures was ultimately accounted for by evapotranspiration or emerged at the surface and found its way to Mill Creek. The preponderance of the competent, substantial evidence adduced at the final hearing supports the effectiveness of the NMPs for the North Tract and East Tract at managing the application and use of nutrients on the property, and minimizing the transport of nutrients to surface water and groundwater resources of the District. North Central Florida Model All of the experts involved in this proceeding agreed that the use of groundwater models is necessary to simulate what might occur below the surface of the ground. Models represent complex systems by applying data from known conditions and impacts measured over a period of years to simulate the effects of new conditions. Models are imperfect, but are the best means of predicting the effects of stresses on complex and unseen subsurface systems. The North Central Florida (NCF) model is used to simulate impacts of water withdrawals on local and regional groundwater levels and flows. The NCF model simulates the surficial aquifer, the upper Floridan aquifer, and the lower Floridan aquifer. Those aquifers are separated from one another by relatively impervious confining units. The intermediate confining unit separates the surficial aquifer from the upper Floridan aquifer. The intermediate confining unit is not present in all locations simulated by the NCF model. However, the evidence is persuasive that the intermediate confining unit is continuous at the North Tract, and serves to effectively isolate the surficial aquifer from the upper Floridan aquifer. The NCF model is not a perfect depiction of what exists under the land surface of the North Tract or elsewhere. It was, however, acknowledged by the testifying experts in this case, despite disagreements as to the extent of error inherent in the model, to be the best available tool for calculating the effects of withdrawals of water within the boundary of the model. The NCF model was developed and calibrated over a period of years, is updated routinely as data becomes available, and has undergone peer review. Aquifer Performance Tests In order to gather site-specific data regarding the characteristics of the aquifer beneath the Sleepy Creek property, a series of three aquifer performance tests (APTs) was conducted on the North Tract. The first two tests were performed by Sleepy Creek, and the third by the District. An APT serves to induce stress on the aquifer by pumping from a well at a high rate. By observing changes in groundwater levels in observation wells, which can be at varying distances from the extraction well, one can extrapolate the nature of the subsurface. In addition, well-completion reports for the various withdrawal and observation wells provide actual data regarding the composition of subsurface soils, clays, and features of the property. The APT is particularly useful in evaluating the ability of the aquifer to produce water, and in calculating the transmissivity of the aquifer. Transmissivity is a measure of the rate at which a substance passes through a medium and, as relevant to this case, measures how groundwater flows through an aquifer. The APTs demonstrated that the Floridan aquifer is capable of producing water at the rate requested. The APT drawdown contour measured in the upper Floridan aquifer was greater than that predicted from a simple run of the NCF model, but the lateral extent of the drawdown was less than predicted. The most reasonable conclusion to be drawn from the combination of greater than expected drawdown in the upper Floridan aquifer with less than expected extent is that the transmissivity of the aquifer beneath the North Tract is lower than the NCF model assumptions. The conclusion that the transmissivity of the aquifer at the North Tract is lower than previously estimated means that impacts from groundwater extraction would tend to be more vertical than horizontal, i.e., the drawdown would be greater, but would be more localized. As such, for areas of lower than estimated transmissivity, modeling would over-estimate off-site impacts from the extraction. NCF Modeling Scenarios The initial NCF modeling runs were based on an assumed withdrawal of 2.39 mgd, an earlier -- though withdrawn - - proposal. The evidence suggests that the simulated well placement for the 2.39 mgd model run was entirely on the North Tract. Thus, the results of the model based on that withdrawal have some limited relevance, especially given that the proposed CUP allows for all of the requested 1.46 mgd of water to be withdrawn from North Tract wells at the option of Sleepy Creek, but will over-predict impacts from the permitted rate of withdrawal. A factor that was suggested as causing a further over-prediction of drawdown in the 2.39 mgd model run was the decision, made at the request of the District, to exclude the input of data of additional recharge to the surficial aquifer, wetlands and surface waters from the irrigation, and the resulting diminution in soil storage capacity. Although there is some merit to the suggestion that omitting recharge made the model results “excessively conservative,” the addition of recharge to the model would not substantially alter the predicted impacts. A model run was subsequently performed based on a presumed withdrawal of 1.54 mgd, a rate that remains slightly more than, but still representative of, the requested amount of 1.46 mgd. The 1.54 mgd model run included an input for irrigation recharge. The simulated extraction points were placed on the East Tract and North Tract in the general configuration as requested in the CUP application. The NCF is designed to model the impacts of a withdrawal based upon various scenarios, identified at the hearing as Scenarios A, B, C, and D. Scenario A is the baseline condition for the NCF model, and represents the impacts of all legal users of water at their estimated actual flow rates as they existed in 1995. Scenario B is all existing users, not including the applicant, at end-of-permit allocations. Scenario C is all existing users, including the applicant, at current end-of-permit allocations. Scenario D is all permittees at full allocation, except the applicant which is modeled at the requested (i.e., new or modified) end-of-permit allocation. To simulate the effects of the CUP modification, simulations were performed on scenarios A, C, and D. In order to measure the specific impact of the modification of the CUP, the Scenario C impacts to the surficial, upper Floridan, and lower Floridan aquifers were compared with the Scenario D impacts to those aquifers. In order to measure the cumulative impact of the CUP, the Scenario A actual-use baseline condition was compared to the Scenario D condition which predicts the impacts of all permitted users, including the applicant, pumping at full end-of-permit allocations. The results of the NCF modeling indicate the following: 2.39 mgd - Specific Impact The surficial aquifer drawdown from the simulated 2.39 mgd withdrawal was less than 0.05 feet on-site and off- site, except to the west of the North Tract, at which a drawdown of 0.07 feet was predicted. The upper Floridan aquifer drawdown from the 2.39 mgd withdrawal was predicted at between 0.30 and 0.12 feet on-site, and between 0.30 and 0.01 feet off-site. The higher off-site figures are immediately proximate to the property. The lower Floridan aquifer drawdown from the 2.39 mgd withdrawal was predicted at less than 0.05 feet at all locations, and at or less than 0.02 feet within six miles of the North Tract. 2.39 mgd - Cumulative Impact The cumulative impact to the surficial aquifer from all permitted users, including a 2.39 mgd Sleepy Creek withdrawal, was less than 0.05 feet on-site, and off-site to the north and east, except to the west of the North Tract, at which a drawdown of 0.07 feet was predicted. The cumulative impact to the upper Floridan aquifer from all permitted users, including a 2.39 mgd Sleepy Creek withdrawal, ranged from 0.4 feet to 0.8 feet over all pertinent locations. The cumulative impact to the lower Floridan aquifer from all permitted users, including a 2.39 mgd Sleepy Creek withdrawal, ranged from 1.0 to 1.9 feet over all pertinent locations. The conclusion drawn by Mr. Andreyev that the predicted impacts to the lower Floridan are almost entirely from other end-of-permit user withdrawals is supported by the evidence and accepted. 1.54 mgd - Specific Impact The NCF model runs based on the more representative 1.54 mgd withdrawal predicted a surficial aquifer drawdown of less than 0.01 feet (i.e., no drawdown contour shown) on the North Tract, and a 0.01 to 0.02 foot drawdown at the location of the East Tract. The drawdown of the upper Floridan aquifer from the CUP modification was predicted at up to 0.07 feet on the property, and generally less than 0.05 feet off-site. There were no drawdown contours at the minimum 0.01 foot level that came within 9 miles of Silver Springs. The lower Floridan aquifer drawdown from the CUP modification was predicted at less than 0.01 feet (i.e., no drawdown contour shown) at all locations. 1.54 mgd - Cumulative Impact A comparison of the cumulative drawdown contours for the 2.36 mgd model and 1.54 mgd model show there to be a significant decrease in predicted drawdowns to the surficial and upper Floridan aquifers, with the decrease in the upper Floridan aquifer drawdown being relatively substantial, i.e., from 0.5 to 0.8 feet on-site predicted for the 2.36 mgd withdrawal, to 0.4 to 0.5 feet on-site for the 1.54 mgd model. Given the small predicted individual impact of the CUP on the upper Floridan aquifer, the evidence is persuasive that the cumulative impacts are the result of other end-of-permit user withdrawals. The drawdown contour for the lower Floridan aquifer predicted by the 1.54 mgd model is almost identical to that of the 2.36 mgd model, thus supporting the conclusion that predicted impacts to the lower Floridan are almost entirely from other end-of-permit user withdrawals. Modeled Effect on Silver Springs As a result of the relocation of the extraction wells from the East Tract to the North Tract, the NCF model run at the 1.54 mgd withdrawal rate predicted springflow at Silver Springs to increase by 0.15 cfs. The net cumulative impact in spring flow as measured from 1995 conditions to the scenario in which all legal users, including Sleepy Creek, are pumping at full capacity at their end-of-permit rates for one year3/ is roughly 35.4 cfs, which is approximately 5 percent of Silver Springs’ current flow. However, as a result of the redistribution of the Sleepy Creek withdrawal, which is, in its current iteration, a legal and permitted use, the cumulative effect of the CUP modification at issue is an increase in flow of 0.l5 cfs. Dr. Kincaid agreed that there is more of an impact to Silver Springs when the pumping allowed by the CUP is located on the East Tract than there is on the North Tract, but that the degree of difference is very small. Dr. Knight testified that effect on the flow of Silver Springs from relocating the 1.46 mgd withdrawal from the East Tract to the North Tract would be “zero.” The predicted increase of 0.15 cfs is admittedly miniscule when compared to the current Silver Springs springflow of approximately 675 cfs. However, as small as the modeled increase may be -- perhaps smaller than its “level of certainty” -- it remains the best evidence that the impact of the CUP modification to the flow of Silver Springs will be insignificant at worst, and beneficial at best. Opposition to the NCF Model Petitioners submitted considerable evidence designed to call the results generated by the District’s and Sleepy Creek’s NCF modeling into question. Karst Features A primary criticism of the validity of the NCF model was its purported inability to account for the presence of karst features, including conduits, and their effect on the results. It was Dr. Kincaid’s opinion that the NCF model assigned transmissivity values that were too high, which he attributed to the presence of karst features that are collecting flow and delivering it to springs. He asserted that, instead of assuming the presence of karst features, the model was adjusted to raise the overall capacity of the porous medium to transmit water, and thereby match the observed flows. In his opinion, the transmissivity values of the equivalent porous media were raised so much that the model can no longer be used to predict drawdowns. That alleged deficiency in the model is insufficient for two reasons. First, as previously discussed in greater detail, the preponderance of the evidence in this case supports a finding that there are no karst features in the vicinity of the North Tract that would provide preferential pathways for water flow so as to skew the results of the NCF model. Second, Dr. Kincaid, while acknowledging that the NCF model is the best available tool for predicting impacts from groundwater extraction on the aquifer, suggested that a hybrid porous media and conduit model would be a better means of predicting impacts, the development of which would take two years or more. There is no basis for the establishment of a de facto moratorium on CUP permitting while waiting for the development of a different and, in this case, unnecessary model. For the reasons set forth herein, it is found that the NCF model is sufficient to accurately and adequately predict the effects of the Sleepy Creek groundwater withdrawals on the aquifers underlying the property, and to provide reasonable assurance that the standards for such withdrawals have been met. Recharge to the Aquifer Petitioners argued that the modeling results showing little significant drawdown were dependent on the application of unrealistic values for recharge or return flow from irrigation. In a groundwater model, as in the physical world, some portion of the water extracted from the aquifer is predicted to be returned to the aquifer as recharge. If more water is applied to the land surface than is being accounted for by evaporation, plant uptake and evapotranspiration, surface runoff, and other processes, that excess water may seep down into the aquifer as recharge. Recharge serves to replenish the aquifer and offset the effects of the groundwater withdrawal. Dr. Kincaid opined that the NCF modeling performed for the CUP application assigned too much water from recharge, offsetting the model's prediction of impacts to other features. It is reasonable to assume that there is some recharge associated with both agricultural and public supply uses. However, the evidence suggests that the impact of recharge on the overall NCF model results is insignificant on the predicted impacts to Silver Springs, the issue of primary concern. Mr. Hearn ran a simulation using the NCF model in which all variables were held constant, except for recharge. The difference between the “with recharge” and “without recharge" simulations at Silver Springs was 0.002 cfs. That difference is not significant, and is not suggestive of adverse impacts on Silver Springs from the CUP modification. Dr. Kincaid testified that “the recharge offset on the property is mostly impacting the surficial aquifer,” and that “the addition of recharge in this case didn't have much of an impact on the upper Floridan aquifer system.” As such, the effect of adding recharge to the model would be as to the effect of groundwater withdrawal on wetlands or surface water bodies, and not on springs. As previously detailed, the drawdown of the surficial aquifer simulated for the 2.39 mgd “no recharge” scenario were less than 0.05 feet on-site and off-site, except for a predicted 0.07 foot drawdown to the west of the North Tract. The predicted drawdown of the surficial aquifer for the 1.54 mgd “with recharge” scenario was 0.02 feet or less. The preponderance of the evidence supports a finding that drawdowns of either degree are less than that at which adverse impacts to wetlands or surface waters would occur. Thus, issues related to the recharge or return flows from irrigation are insufficient to support a finding or conclusion that the NCF model failed to provide reasonable assurance that the standards for issuance of the CUP modification were met. External Boundaries The boundaries of the NCF model are not isolated from the rest of the physical world. Rather, groundwater flows into the modeled area from multiple directions, and out of the modeled area in multiple directions. Inflows to the model area are comprised of recharge, which is an assigned value, and includes water infiltrating and recharging the aquifer from surface waters; injection wells; upward and downward leakage from lower aquifers; and flow across the external horizontal boundaries. Outflows from the model area include evapotranspiration; discharge to surface waters, including springs and rivers; extraction from wells; upward and downward leakage from lower aquifers; and flow against the external model boundaries. Dr. Kincaid testified that flow across the external model boundary is an unknown and unverifiable quantity which increases the uncertainty in the model. He asserted that in the calibrated version of the model, there is no way to check those flows against data. His conclusion was that the inability of the NCF model to accurately account for external boundary flow made the margin of error so great as to make the model an unreliable tool with which to assess whether the withdrawal approved by the proposed CUP modification will increase or decrease drawdown at Silver Springs. The District correlates the NCF model boundaries with a much larger model developed by the United States Geological Survey, the Peninsula of Florida Model, more commonly referred to as the Mega Model, which encompasses most of the State of Florida and part of Southeast Georgia. The Mega Model provides a means to acknowledge that there are stresses outside the NCF model, and to adjust boundary conditions to account for those stresses. The NCF is one of several models that are subsets of the Mega Model, with the grids of the two models being “nested” together. The 1995 base year of the NCF model is sufficiently similar to the 1993-1994 base year of the Mega Model as to allow for a comparison of simulated drawdowns calculated by each of the models. By running a Mega Model simulation of future water use, and applying the change in that use from 1993 base year conditions, the District was able to come to a representative prediction of specific boundary conditions for the 1995 NCF base year, which were then used as the baseline for simulations of subsequent conditions. In its review of the CUP modification, the District conducted a model validation simulation to measure the accuracy of the NCF model against observed conditions, with the conditions of interest being the water flow at Silver Springs. The District ran a simulation using the best information available as to water use in the year 2010, the calculated boundary conditions, irrigation, pumping, recharge, climatic conditions, and generally “everything that we think constitutes that year.” The discharge of water at Silver Springs in 2010 was measured at 580 cfs. The discharge simulated by the NCF model was 545 cfs. Thus, the discharge predicted by the NCF model simulation was within six percent of the observed discharge. Such a result is generally considered in the modeling community to be “a home run.” Petitioners’ objections to the calculation of boundary conditions for the NCF model are insufficient to support a finding that the NCF model is not an appropriate and accurate tool for determining that reasonable assurance has been provided that the standards for issuance of the CUP modification were met. Cumulative Impact Error As part of the District’s efforts to continually refine the NCF, and in conjunction with a draft minimum flows and levels report for Silver Springs and the Silver River, the cumulative NCF model results for the period of baseline to 2010 were compared with the simulated results from the Northern District Model (NDF), a larger model that overlapped the NCF. As a result of the comparison, which yielded different results, it was discovered that the modeler had “turned off” not only the withdrawal pumps, but inputs to the aquifer from drainage wells and sinkholes as well. When those inputs were put back into the model run, and effects calculated only from withdrawals between the “pumps-off” condition and 2010 pumping conditions, the cumulative effect of the withdrawals was adjusted from a reduction in the flow at Silver Springs of 29 cfs to a reduction of between 45 and 50 cfs, an effect described as “counterintuitive.” Although that result has not undergone peer review, and remains subject to further review and comparison with the Mega Model, it was accepted by the District representative, Mr. Bartol. Petitioners seized upon the results of the comparison model run as evidence of the inaccuracy and unreliability of the NCF model. However, the error in the NCF model run was not the result of deficiencies in the model, but was a data input error. Despite the error in the estimate of the cumulative effect of all users at 2010 levels, the evidence in this case does not support a finding that the more recent estimates of specific impact from the CUP at issue were in error. NCF Model Conclusion As has been discussed herein, a model is generally the best means by which to calculate conditions and effects that cannot be directly observed. The NCF model is recognized as being the best tool available for determining the subsurface conditions of the model domain, having been calibrated over a period of years and subject to peer review. It should be recognized that the simulations run using the NCF model represent the worst—case scenario, with all permittees simultaneously drawing at their full end-of-permit allocations. There is merit to the description of that occurrence as being “very remote.” Thus, the results of the modeling represent a conservative estimate of potential drawdown and impacts. While the NCF model is subject to uncertainty, as is any method of predicting the effects of conditions that cannot be seen, the model provides reasonable assurance that the conditions simulated are representative of the conditions that will occur as a result of the withdrawals authorized by the CUP modification. Environmental Resource Permit The irrigation proposed by the CUP will result in runoff from the North Tract irrigated pastures in excess of that expected from the improved pastures, due in large measure to the diminished storage capacity of the soil. Irrigation water will be applied when the soils are dry, and capable of absorbing water not subject to evaporation or plant uptake. The irrigation water will fill the storage space that would exist without irrigation. With irrigation water taking up the capacity of the soil to hold water, soils beneath the irrigation pivots will be less capable of retaining additional moisture during storm events. Thus, there is an increased likelihood of runoff from the irrigated pastures over that expected with dry soils. The increase in runoff is expected to be relatively small, since there should be little or no irrigation needed during the normal summer wet season. The additional runoff may have increased nutrient levels due to the increased cattle density made possible by the irrigation of the pastures. The CUP has a no—impact requirement for water quality resulting from the irrigation of the improved pasture. Thus, nutrients leaving the irrigated pastures may not exceed those calculated to be leaving the existing pre-development use as improved pastures. Retention Berms The additional runoff and nutrient load is proposed to be addressed by constructing a system of retention berms, approximately 50,0004/ feet in length, which is intended to intercept, retain, and provide treatment for runoff from the irrigated pasture. The goal of the system is to ensure that post—development nutrient loading from the proposed irrigated pastures will not exceed the pre—development nutrient loading from the existing improved pastures. An ERP permit is required for the construction of the berm system, since the area needed for the construction of the berms is greater than the one acre in size, and since the berms have the capability of impounding more than 40 acre-feet of water. The berms are to be constructed by excavating the top nine inches of sandy, permeable topsoil and using that permeable soil to create the berms, which will be 1 to 2 feet in height. The water storage areas created by the excavation will have flat or horizontal bottoms, and will be very shallow with the capacity to retain approximately a foot of water. The berms will be planted with pasture grasses after construction to provide vegetative cover. The retention berm system is proposed to be built in segments, with the segment designed to capture runoff from a particular center pivot pasture to be constructed prior to the commencement of irrigation from that center pivot. A continuous clay layer underlies the areas in which the berms are to be constructed. The clay layer varies from 18 to 36 inches below the ground surface, with at least one location being as much as five feet below the ground surface. As such, after nine inches of soil is scraped away to create the water retention area and construct the berm, there will remain a layer of permeable sandy material above the clay. The berms are to be constructed at least 25 feet landward of any jurisdictional wetland, creating a “safe upland line.” Thus, the construction, operation, and maintenance of the retention berms and redistribution swales will result in no direct impacts to jurisdictional wetlands or other surface waters. There will be no agricultural activities, e.g., tilling, planting, or mowing, within the 25-foot buffers, and the buffers will be allowed to establish with native vegetation to provide additional protection for downgradient wetlands. As stormwater runoff flows from the irrigated pastures, it may, in places, create concentrated flow ways. Redistribution swales will be built in those areas to spread any remaining overland flow of water and reestablish sheet flow to the retention berm system. At any point at which water may overtop a berm, the berm will be hardened with rip—rap to insure its integrity. The berms are designed to intercept and collect overland flow from the pastures and temporarily store it behind the berms, regaining the soil storage volume lost through irrigation. A portion of the runoff intercepted by the berm system will evaporate. The majority will infiltrate either through the berm, or vertically into the subsurface soils beneath it. When the surficial soils become saturated, further vertical movement will be stopped by the impermeable clay layer underlying the site. The runoff water will then move horizontally until it reemerges into downstream wetland systems. Thus, the berm system is not expected to have a measurable impact on the hydroperiod of the wetlands on the North Tract. Phosphorus Removal Phosphorus tends to get “tied up” in soil as it moves through it. Phosphorus reduction occurs easily in permeable soil systems because it is removed from the water through a chemical absorption process that is not dependent on the environment of the soil. As the soils in the retention areas and berms go through drying cycles, the absorption capacity is regenerated. Thus, the retention system will effectively account for any increase in phosphorus resulting from the increased cattle density allowed by the irrigation such that there is expected to be no increase in phosphorus levels beyond the berm. Nitrogen Removal When manure is deposited on the ground, primarily as high pH urine, the urea is quickly converted to ammonia, which experiences a loss of 40 to 50 percent of the nitrogen to volatization. Soil conditions during dry weather conditions are generally aerobic. Remaining ammonia in the manure is converted by aerobic bacteria in the soil to nitrates and nitrites. Converted nitrates and nitrites from manure, along with nitrogen from fertilizer, is readily available for uptake as food by plants, including grasses and forage crops. Nitrates and nitrites are mobile in water. Therefore, during rain events of sufficient intensity to create runoff, the nitrogen can be transported downstream towards wetlands and other receiving waters, or percolate downward through the soil until blocked by an impervious barrier. During storm events, the soils above the clay confining layer and the lower parts of the pervious berms become saturated. Those saturated soils are drained of oxygen and become anaerobic. When nitrates and nitrites encounter saturated conditions, they provide food for anaerobic bacteria that exist in those conditions. The bacteria convert nitrates and nitrites to elemental nitrogen, which has no adverse impact on surface waters or groundwater. That process, known as denitrification, is enhanced in the presence of organic material. The soils from which the berms are constructed have a considerable organic component. In addition to the denitrification that occurs in the saturated conditions in and underlying the berms, remaining nitrogen compounds that reemerge into the downstream wetlands are likely to encounter organic wetland-type soil conditions. Organic wetland soils are anaerobic in nature, and will result in further, almost immediate denitrification of the nitrates and nitrites in the emerging water. Calculation of Volume - BMPTRAINS Model The calculation of the volume necessary to capture and store excess runoff from the irrigated pastures was performed by Dr. Wanielista using the BMPTRAINS model. BMPTRAINS is a simple, easy to use spreadsheet model. Its ease of use does not suggest that it is less than reliable. The model has been used as a method of calculating storage volumes in many conditions over a period of more than 40 years. The model was used to calculate the storage volumes necessary to provide storage and treatment of runoff from fifteen “basins” that had a control or a Best Management Practice associated with them. All of the basins were calculated as being underlain by soils in poorly-drained hydrologic soil Group D, except for the basin in the vicinity of Pivot 6, which is underlain by the more well-drained soil Group A. The model assumed about percent of the property to have soil Group A soils, an assumption that is supported by the evidence. Soil moisture conditions on the property were calculated by application of data regarding rainfall events and times, the irrigation schedule, and the amount of irrigation water projected for use over a year. The soil moisture condition was used to determine the amount of water that could be stored in the on-site soils, known as the storage coefficient. Once the storage coefficient was determined, that data was used to calculate the amount of water that would be expected to run off of the North Tract, known as the curve number. The curve number is adjusted by the extent to which the storage within a soil column is filled by the application of irrigation water, making it unable to store additional rainfall. As soil storage goes down, the curve number goes up. Thus, a curve number that approaches 100 means that more water is predicted to run off. Conversely, a lower curve number means that less water is predicted to run off. The pre-development curve number for the North Tract was based on the property being an unirrigated, poor grass area. A post-development curve number was assigned to the property that reflected a wet condition representative of the irrigated soils beneath the pivots. In calculating the storage volume necessary to handle runoff from the basins, the wet condition curve number was adjusted based on the fact that there is a mixture of irrigated and unirrigated general pasture within each basin to be served by a segment of the retention berm system, and by the estimated 15 percent of the time that the irrigation areas would be in a drier condition. In addition, the number was adjusted to reflect the 8 to 10 inches of additional evapotranspiration that occurs as a result of irrigation. The BMPTRAINS model was based on average annual nutrient-loading conditions, with water quality data collected at a suitable point within Reach 22, the receiving waterbody. The effects of nutrients from the irrigated pastures on receiving waterbodies is, in terms of the model, best represented by average annual conditions, rather than a single highest-observed nutrient value. Pre-development loading figures were based on the existing use of the property as unirrigated general pasture. The pre-development phosphorus loading figure was calculated at an average event mean concentration (EMC) of 0.421 milligrams per liter (mg/l). The post—condition phosphorus loading figure was calculated at an EMC of 0.621 mg/l. Therefore, in order to achieve pre-development levels of phosphorus, treatment to achieve a reduction in phosphorus of approximately 36 percent was determined to be necessary. The pre-development nitrogen loading figure was calculated at an EMC of 2.6 mg/l. The post—condition nitrogen loading figure was calculated at an EMC of 3.3 mg/l. Therefore, in order to achieve pre-development levels of nitrogen, treatment to achieve a reduction in nitrogen of approximately 25 percent was determined to be necessary. The limiting value for the design of the retention berms is phosphorus. To achieve post-development concentrations that are equal to or less than pre-development concentrations, the treatment volume of the berm system must be sufficient to allow for the removal of 36 percent of the nutrients in water being retained and treated behind the berms, which represents the necessary percentage of phosphorus. In order to achieve the 36 percent reduction required for phosphorus, the retention berm system must be capable of retaining approximately 38 acre—feet of water from the 15 basins. In order to achieve that retention volume, a berm length of approximately 50,000 linear feet was determined to be necessary, with an average depth of retention behind the berms of one foot. The proposed length of the berms is sufficient to retain the requisite volume of water to achieve a reduction in phosphorus of 36 percent. Thus, the post-development/irrigation levels of phosphorus from runoff are expected to be no greater than pre-development/general pasture levels of phosphorus from runoff. By basing the berm length and volume on that necessary for the treatment of phosphorus, there will be storage volume that is greater than required for a 25 percent reduction in nitrogen. Thus, the post-development/irrigation levels of nitrogen from runoff are expected to be less than pre- development/general pasture levels of nitrogen from runoff. Mr. Drummond admitted that the design of the retention berms “shows there is some reduction, potentially, but it's not going to totally clean up the nutrients.” Such a total clean-up is not required. Rather, it is sufficient that there is nutrient removal to pre-development levels, so that there is no additional pollutant loading from the permitted activities. Reasonable assurance that such additional loading is not expected to occur was provided. Despite Mr. Drummond’s criticism of the BMPTRAINS model, he did not quantify nutrient loading on the North Tract, and was unable to determine whether post-development concentrations of nutrients would increase over pre-development levels. As such, there was insufficient evidence to counter the results of the BMPTRAINS modeling. Watershed Assessment Model In order to further assess potential water quantity and water quality impacts to surface water bodies, and to confirm stormwater retention area and volume necessary to meet pre-development conditions, Sleepy Creek utilized the Watershed Assessment Model (WAM). The WAM is a peer-reviewed model that is widely accepted by national, state, and local regulatory entities. The WAM was designed to simulate water balance and nutrient impacts of varying land uses. It was used in this case to simulate and provide a quantitative measure of the anticipated impacts of irrigation on receiving water bodies, including Mill Creek, Daisy Creek, the Ocklawaha River, and Silver Springs. Inputs to the model include land conditions, soil conditions, rain and climate conditions, and water conveyance systems found on the property. In order to calculate the extent to which nutrients applied to the land surface might affect receiving waters, a time series of surface water and groundwater flow is “routed” through the modeled watershed and to the various outlets from the system, all of which have assimilation algorithms that represent the types of nutrient uptakes expected to occur as water goes through the system. Simulations were performed on the North Tract in its condition prior to acquisition by Sleepy Creek, in its current “exempted improved pasture condition,” and in its proposed “post—development” pivot-irrigation condition. The simulations assessed impacts of the site conditions on surface waters at the point at which they leave the property and discharge to Mill Creek, and at the point where Mill Creek merges into the Ocklawaha River. The baseline condition for measuring changes in nutrient concentrations was determined to be that lawfully existing at the time the application was made. Had there been any suggestion of illegality or impropriety in Sleepy Creek’s actions in clearing the timber and creating improved pasture, a different baseline might be warranted. However, no such illegality or impropriety was shown, and the SJRWMD rules create no procedure for “looking back” to previous land uses and conditions that were legally changed. Thus, the “exempted improved pasture condition” nutrient levels are appropriate for comparison with irrigated pasture nutrient levels. The WAM simulations indicated that nitrogen resulting from the irrigation of the North Tract pastures would be reduced at the outflow to Mill Creek at the Reach 22 stream segment from improved pasture levels by 1.7 percent in pounds per year, and by 0.6 percent in milligrams per liter of water. The model simulations predicted a corresponding reduction at the Mill Creek outflow to the Ocklawaha River of 1.3 percent in pounds per year, and 0.5 percent in milligrams per liter of water. These levels are small, but nonetheless support a finding that the berm system is effective in reducing nitrogen from the North Tract. Furthermore, the WAM simulations showed levels of nitrogen from the irrigated pasture after the construction of the retention berms to be reduced from that present in the pre- development condition, a conclusion consistent with that derived from the BMPTRAINS model. The WAM simulations indicated that phosphorus from the irrigated North Tract pastures, measured at the outflow to Mill Creek at the Reach 22 stream segment, would be reduced from improved pasture levels by 3.7 percent in pounds per year, and by 2.6 percent in milligrams per liter of water. The model simulations predicted a corresponding reduction at the Mill Creek outflow to the Ocklawaha River of 2.5 percent in pounds per year, and 1.6 percent in milligrams per liter of water. Those levels are, again, small, but supportive of a finding of no impact from the permitted activities. The WAM simulations showed phosphorus in the Ocklawaha River at the Eureka Station after the construction of the retention berms to be slightly greater than those simulated for the pre-development condition (0.00008 mg/l) -- the only calculated increase. That level is beyond miniscule, with impacts properly characterized as “non- measurable” and “non-detectable.” In any event, total phosphorus remains well below Florida’s nutrient standards. The WAM simulations were conducted based on all of the 15 pivots operating simultaneously at full capacity. That amount is greater than what is allowed under the permit. Thus, according to Dr. Bottcher, the predicted loads are higher than those that would be generated by the permitted allocation, making his estimates “very conservative.” Dr. Bottcher’s testimony is credited. During the course of the final hearing, the accuracy of the model results was questioned based on inaccuracies in rainfall inputs due to the five-mile distance of the property from the nearest rain station. Dr. Bottcher admitted that given the dynamics of summer convection storms, confidence that the rain station rainfall measurements represent specific conditions on the North Tract is limited. However, it remains the best data available. Furthermore, Dr. Bottcher testified that even if specific data points simulated by the model differ from that recorded at the rain station, that same error carries through each of the various scenarios. Thus, for the comparative purpose of the model, the errors get “washed out.” Other testimony regarding purported inaccuracies in the WAM simulations and report were explained as being the result of errors in the parameters used to run alternative simulations or analyze Sleepy Creek’s simulations, including use of soil types that are not representative of the North Tract, and a misunderstanding of dry weight/wet weight loading rates. There was agreement among witnesses that the WAM is regarded, among individuals with expertise in modeling, as an effective tool, and was the appropriate model for use in the ERP application that is the subject of this proceeding. As a result, the undersigned accepts the WAM simulations as being representative of comparative nutrient impacts on receiving surface water bodies resulting from irrigation of the North Tract. The WAM confirmed that the proposed retention berm system will be sufficient to treat additional nutrients that may result from irrigation of the pastures, and supports a finding of reasonable assurance that water quality criteria will be met. With regard to the East Tract, the WAM simulations showed that there would be reductions in nitrogen and phosphorus loading to Daisy Creek from the conversion of the property to irrigated pasture. Those simulations were also conservative because they assumed the maximum number of cattle allowed by the nutrient balance, and did not assume the 30 percent reduction in the number of cattle under the NMP so as to allow existing elevated levels of phosphorus in the soil from the sod farm to be “mined” by vegetation. Pivot 6 The evidence in this case suggests that, unlike the majority of the North Tract, a small area on the western side of the North Tract drains to the west and north. Irrigation Pivot is within that area. Dr. Harper noted that there are some soils in hydrologic soil Group A in the vicinity of Pivot 6 that reflect soils with a deeper water table where rainfall would be expected to infiltrate into the ground. Dr. Kincaid’s particle track analysis suggested that recharge to the surficial aquifer ultimately discharges to Mill Creek, except for recharge at Pivot 11, which is accounted for by evapotranspiration, and recharge at Pivot 6. Dr. Kincaid concluded that approximately 1 percent of the recharge to the surficial aquifer beneath the North Tract found its way into the upper Floridan aquifer. Those particle tracks originated only on the far western side of the property, and implicated only Pivot 6, which is indicative of the flow divide in the Floridan aquifer. Of the 1 percent of particle tracks entering the Floridan aquifer, some ultimately discharged at the St. John’s River, the Ocklawaha River, or Mill Creek. Dr. Kincaid opined, however, that most ultimately found their way to Silver Springs. Given the previous finding that the Floridan aquifer beneath the property is within the Silver Springs springshed for less than a majority of the time, it is found that a correspondingly small fraction of the less than 1 percent of the particle tracks originating on the North Tract, perhaps a few tenths of one percent, can reach Silver Springs. Dr. Bottcher generally agreed that some small percentage of the water from the North Tract may make it to the upper Floridan aquifer, but that amount will be very small. Furthermore, that water reaching the upper Floridan aquifer would have been subject to the protection and treatment afforded by the NMP and the ERP berms. The evidence regarding the somewhat less restrictive confinement of the aquifer around Pivot 6 is not sufficient to rebut the prima facie case that the CUP modification, coupled with the ERP, will meet the District’s permitting standards. Public Interest The primary basis upon which Sleepy Creek relies to demonstrate that the CUP is “consistent with the public interest” is that Florida's economy is highly dependent upon agricultural operations in terms of jobs and economic development, and that there is a necessity of food production. Sleepy Creek could raise cattle on the property using the agriculturally-exempt improved pastures, but the economic return on the investment would be questionable without the increased quality, quantity, and reliability of grass and forage crop production resulting from the proposed irrigation. Sleepy Creek will continue to engage in agricultural activities on its properties if the CUP modification is denied. Although a typical Florida beef operation could be maintained on the property, the investment was based upon having the revenue generation allowed by grass-fed beef production in order to realize a return on its capital investment and to optimize the economic return. If the CUP modification is denied, the existing CUP will continue to allow the extraction of 1.46 mgd for use on the East Tract. The preponderance of the evidence suggests that such a use would have greater impacts on the water levels at Silver Springs, and that the continued use of the East Tract as a less stringently-controlled sod farm would have a greater likelihood of higher nutrient levels, particularly phosphorus levels which are already elevated.
Recommendation Based on the foregoing Findings of Fact and Conclusions of Law set forth herein it is RECOMMENDED that the St. Johns River Water Management District enter a final order: approving the issuance of Consumptive Use Permit No. 2-083-91926-3 to Sleepy Creek Lands, LLC on the terms and conditions set forth in the complete Permit Application for Consumptive Uses of Water and the Consumptive Use Technical Staff Report; and approving the issuance of Environmental Resource Permit No. IND-083-130588-4 to Sleepy Creek Lands, LLC on the terms and conditions set forth in the complete Joint Application for Individual and Conceptual Environmental Resource Permit and the Individual Environmental Resource Permit Technical Staff Report. DONE AND ENTERED this 29th day of April, 2015, in Tallahassee, Leon County, Florida. S E. GARY EARLY Administrative Law Judge Division of Administrative Hearings The DeSoto Building 1230 Apalachee Parkway Tallahassee, Florida 32399-3060 (850) 488-9675 Fax Filing (850) 921-6847 www.doah.state.fl.us Filed with the Clerk of the Division of Administrative Hearings this 29th day of April, 2015.
The Issue The issue is whether the 100 foot separation of respondents/applicants sewage treatment plant from the surface water management system is adequate.
Findings Of Fact Based upon all of the evidence, the following supplemental findings of fact are determined: Background Respondents/applicant, John D. Remington and Bolton S. Drackett (applicants), are the owners of record of approximately two thirds, or around 2,700 acres, of Keewaydin Island (Key Island), which lies just south of the mainland portion of the City of Naples, Florida. In conjunction with a planned luxury development of forty-two homes on Key Island, applicants have filed an application with respondent, South Florida Water Management District (District), seeking the issuance of a permit authorizing the construction and operation of a surface water management system (system) through which stormwater runoff from the project will be directed and controlled. Petitioner, Florida Audubon Society (FAS), has initiated this proceeding to contest the issuance of a permit. In an earlier and separate proceeding (DOAH Case No. 90-2415), applicants applied for a permit from the Department of Environmental Regulation (DER) to construct a wastewater treatment plant (plant) to serve the planned development. The permit was issued on January 2, 1990, and because all appeals by FAS in Case No. 90-2415 have been concluded, that proceeding is now final. Although the wastewater treatment plant has not yet been constructed, the parties agree that it will be situated more than one hundred feet from the surface water management system. This distance (100 feet) is the minimum amount of space allowed by District rule between the plant and system. Even so, the purpose of the remand proceeding is to determine whether that amount of separation is adequate. Thus, the factual issue here is whether the treated wastewater from the plant and filter fields will enter the surface water management system and cause a violation of applicable water quality standards and other relevant District criteria. In support of their respective positions on this issue, the parties have presented the testimony of a number of experts. In resolving the conflict in their testimony, the undersigned has accepted the more credible and persuasive testimony which is embodied in the findings below. A Brief Description of the Development and System The proposed development and surface water management system were described in detail in the prior recommended order entered in this case. For purposes of this Supplemental Recommended Order, it need only be noted that Key Island now has a lodge, guest quarters and recreation facilities, all presently served by septic tanks. Access to the island is provided by motor launch from an existing shore station. Subaqueous utility crossings from the mainland provide electric power and potable water to the island. The planned development includes the construction of forty-two large luxury homes and an expansion of the lodge facilities to accommodate the needs of the new residents. The homes will be built in phases with approximately ten to be built in the first year. The entire project may take as long as seven or eight years to complete. The proposed surface water management system was designed to handle a seventy-five residential unit development. However, by virtue of a reduction in size imposed by the City of Naples, the project has been reduced to forty-two homes. Even so, the capacity of the system has not been downsized. Therefore, the system as designed will more than accommodate all proposed development on the island. The development area has been divided into seven surface water management basins based upon seven existing natural water sheds on the upland portion of the project. Each basin will have a system of inlets, culverts and swales which will direct runoff to control structures. The dry swales are approximately one foot deep and five to ten feet wide and run parallel on both sides of the cart paths that link the various portions of the project. The cart paths, which will be at an elevation of 5.5 feet above mean sea level (NGVD), will have culverts running underneath to aid in maintaining the natural flow of water and limit impounding of water. The swale bottoms are designed to be one foot below the cart path elevation, or at 4.5 feet NGVD, and will be dry, except during significant rain events, because they are designed so that the bottom of the swale is at least one foot above the average wet season water table. Both the cart paths and swale system utilize a design system that is common to residential developments. Once the water reaches a specified height, it goes over the control structure and is discharged downstream into spreader swales from which the water is dispersed into either interior, low wetland areas or into two artificial lakes (7.3 and 1.0 acres in size) created for wet detention. Basins one, two, three, four and seven are designed to treat water quality by the dry detention method, that is, by the unlined swales that parallel cart paths, while water quality is accomplished in basins five and six by best management practices and wet retention, that is, the two artificial lakes. The Wastewater Treatment Plant The DER permit was issued on January 2, 1990, and carries an expiration date of January 2, 1995. It authorizes applicants to: construct a 0.035 MGD extended aeration process wastewater treatment plant with reclaimed water to dual absorption fields located at the project site as depicted on Wilson, Miller, Barton, Soll & Peek, Inc. design drawings, project number 6270, sheets 1 thru 5 of 5, dated March 20, 1989, revised October 16, 1989 and received October 19, 1989. The design drawings were submitted in support of construction application, engineering report, hydrologeolic characteristics and hydraulic modeling for effluent disposal report and related documents, dated March 20, 1989. The hydraulic capacity of the plant is limited to 0.030 MGD based on the reclaimed water disposal system. The collection system shall not exceed the 0.030 MGD hydraulic capacity as well. The wastewater treatment plant is designed to meet all DER water quality, health and safety standards. For example, the plant must achieve 90% removal of biological oxygen demand (BOD) and 90% removal of total suspended solids from the raw wastewater, or effluent levels below 20 parts per million for BOD and 10 parts per million suspended solids, whichever is more stringent. The plant must also have twenty-four hour detention in the aeration chamber and four hours detention in the clarifer. Further, a chlorine chamber contact time of fifteen minutes is required. In addition, DER has issued the permit with certain specific conditions. Among others, these include standards as to effluent chlorine residuals, the requirement that a professional engineer inspect the construction, operation requirements, sampling schedules, defined perameter levels, and the establishment of a hydraulic plant load (permitted maximum daily flow) at 30,000 gallons per day. By issuing the permit, DER has concluded that up to 30,000 gallons per day of sewage effluent can be treated and disposed of by the plant filter fields without violation of applicable DER water quality, health and safety standards. The wastewater treatment plant will be located on a centralized utility site within basin seven of the system. There are also gravity sand filters and a drainfield effluent disposal system located in basin six, which is the northeastern corner of the project. The plant will provide a high degree of treatment and disinfection for the effluent before it is discharged to the filter field. The filtered (treated) effluent will flow by gravity main to the filter fields located in an adjacent basin. Two filter fields will be used in disposing of the treated wastewater effluent. Constructed as sand mounds at a grade level of two or three feet above the existing island elevation, each filter will have dimensions of twenty feet wide and four hundred feet long. The filter fields will be constructed as a bed of gravel wrapped in filter cloth and placed within a mound of soil. A perforated four-inch pipe will be installed within the gravel bed at 5.5 feet NGVD to distribute the effluent through the filter beds. The effluent will then percolate downward and laterally away from the bed and into the groundwater table. At that point, the effluent will become indistinguishable from the groundwater Because the total daily flow will be pumped alternately into one part of the two sections of the drainfield, this allows one filter field to "rest" for a seven-day period during the use of the other filter field, thereby avoiding saturation. Therefore, the average theoretical maximum input into a filter field over a one year period at the plant's maximum capacity is 15,000 gallons per day. The plant was designed and permitted for maximum daily flows at all times of the year. However, the actual operating conditions will reflect significantly less flows due to the seasonality of the population and occupancy levels. More specifically, the plant was designed and permitted for seventy- five dwelling units and ancillary uses with an estimated maximum design flow of 28,450 gallons per day. The approved planned development will contain only forty-two dwelling units and ancillary uses with a maximum design flow of 21,200 gallons per day. Therefore, the permitted plant will treat the wastewater to a higher level due to the reserve capacity, and the plant will rarely be used at over fifty percent of its available capacity. Revised projected wastewater flows will range from daily loads of 2,325 gallons per day during the months of August and September to a high of 15,137 gallons per day during the month of February. This projected usage is consistent with historical occupancy and usage trends in the Naples area which show that occupancy of homes is at its peak during the dry season (the cooler winter months) and substantially lower during the wet season (the hot summer months). Applicants' projected wastewater flows are found to be reasonable and are hereby accepted. In making this finding, the undersigned has rejected the contention by FAS that the daily wastewater flows will be higher than that projected by the applicants and the plant will operate at maximum capacity for sustained periods of time. The system plans reflect that there will be swales within basin six located between one hundred ten and one hundred twenty feet to the west of the filter fields. These swales run parallel along a cart path and flow to the north discharging into an artificial lake at the north end of the project. The swales in this basin have a bottom elevation of 4.5 feet NGVD and decrease to an elevation of 3.5 feet NGVD at the point of discharge into the artificial lake. Adequacy of Separation Between Plant and System Rule 40E-4.091, Florida Administrative Code, adopts and incorporates by reference a document known as the "Basis for Review for Surface Water Management Permit Applications within the South Florida Water Management District - September 1989" (Basis for Review). Section 3.2.2.8 of the Basis for Review reads as follows: Sewage treatment percolation ponds. Above ground pond dikes shall not be within 200 feet of water bodies or 100 feet of dry detention/ detention areas. Additional calculations by the applicant may be necessary in unusual cases requiring deviations from these dimensions. The purpose of the above section is to provide adequate separation between above-ground percolation ponds and surface water management systems in case the percolation pond dike fails. For example, above grade percolation ponds contain large volumes of sewage treatment plant effluent. If a pond dike should fail, a large portion of effluent would be quickly released into the adjacent ground. The minimum 100-foot separation is designed to provide adequate distance for percolation into the ground prior to infiltrating the surface water management system. However, filter fields contain lesser volumes of effluent than do percolation ponds, and should a filter field fail, the effluent will trickle out the side of the field with a much lower rate of effluent release than from a failed pond dike. In accordance with the District rule, applicants have proposed to locate the surface water management system more than one hundred feet from the wastewater treatment plant and filtration beds. Even though the rule standards have been met, the purpose of this remand proceeding is to determine whether that amount of separation is adequate to prevent adverse impacts to the water quantity and water quality functions of the system from the operation and location of the filter fields. The Computer Models As a part of their application filed with DER in 1989, applicants' witness Missimer prepared and submitted a report known as "Hydrogeologic Characteristics and Hydraulic Modeling for Effluent Disposal at Keewaydin Club". The report was based on a computer model known as "Modflow" and was designed to show the increase in elevation of the water table for a loading rate of 30,000 gallons per day alternating between the two filtration beds. The purpose of the modeling analysis filed with DER was to investigate whether the plant would continue to discharge effluent to the drainfields under the most extreme conditions. The model demonstrated that the effluent discharge would not be impaired even under conditions that are beyond any reasonable or probable operating conditions. After reviewing the model, DER accepted those results and issued a permit. Utilizing in large part the underlying assumptions and parameters of the Missimer model, and without performing any independent field evaluation on the site, FAS witness Chin ran the model to investigate the impact of the operation of the plant on the system. Because the model used by Dr. Chin was not constructed for the design of a surface water management system, but rather was constructed for the purpose of designing an adsorption field, without modification it provided a more than worst case scenario of impacts associated with the operation of a plant. In this case, Dr. Chin utilized the ultra- conservative assumptions used in designing the adsorption field and made no revisions to the model. Thus, it is found that the model as used by Dr. Chin, and any conclusions drawn from the model alone, are not a sufficient or reasonable basis for evaluating the impact of the plant on the system. The model used by Dr. Chin is not representative of the natural occurring conditions on the island or the reasonably expected plant flow rates. Moreover, in developing the worst case scenario, as opposed to reasonable expectations, both the Chin and Missimer models incorporated the simultaneous occurrence of certain conservative assumptions including an impermeable flow boundary, a year round wet season water table elevation, a conservative rate of transmissivity, and a constant rate of evapotranspiration. The use of these assumptions caused the model output to grossly overstate the effects of the plant on the system in the following manner. First, by assuming a flow barrier on the island, the model had the effect of overestimating the height of the groundwater mound from operation of the plant than would occur if no boundary were used. Second, the assumption of a year-round wet season groundwater level is unrealistic since groundwater levels fluctuate seasonally, receding to near zero NGVD on the island during the dry season. Thus, the model overestimated the height of the groundwater level. Further, by using only the upper ten feet of the water table aquifer in calculating the rate of transmissivity, the model incorporated a much lower rate than would be attained had the entire thickness (74 feet) of the aquifer been used. This also resulted in an over-estimation in the height of the mound from the operation of the plant. Finally, by assuming a constant rate of evapotranspiration, the model "grossly exaggerated" the impact to the groundwater level from operation of the plant. In reality, as the water table increases, the loss of water from evapotranspiration increases significantly and constitutes a major output of a water budget. Besides the foregoing assumptions, the Chin model also assumed a continuous loading rate of 30,000 gallons per day for a period of up to one year. While the District should properly consider the permitted flow rate of the plant in evaluating a worst case of potential impact, there was no evidence substantiating any likelihood of the plant actually producing 30,000 gallons per day for 365 consecutive days in conjunction with all other conservative assumptions discussed above. The more reasonable and accepted method of analyzing the impact of plant flows is to examine the peak month's average day flow over a six-month period. As noted earlier, for the proposed forty-two units, the peak day flow is estimated to be approximately 21,200 gallons per day. Therefore, it is highly probable that actual flow rates will be much lower than the maximum plant capacity of 30,000 gallons per day. By failing to use the more reasonable and realistic reduced flow rates, the Chin model overestimated the elevation of the groundwater level from the operation of the plant. In contrast, the Missimer analysis demonstrates that it is extremely unlikely that the plant output will ever elevate groundwater to the extent that it would reach the system swales by either surface water or groundwater flow. The foregoing modeling assessments, including the criticisms of the Chin model, were concurred in by the District expert. Water Quantity Impacts There is no credible evidence to support a finding that the operation of the plant will adversely impact the ability of the system to provide adequate flood protection and drainage. Indeed, the more credible evidence shows that an alteration of existing drainage patterns will not occur by virtue of the operation of the plant, and the post-development discharge rates will not exceed the pre-development discharge rates. Therefore, the undersigned's previous finding that applicants have provided reasonable assurance that the the system provides adequate protection and drainage is not altered after considering the operation and location of the plant. There is insufficient credible evidence to support a finding that the plant's operation will adversely impact the system functions in such a way as to cause adverse water quantity impacts on receiving waters and adjacent lands. Indeed, the post-development discharge rate approximates the pre-development discharge rate on receiving waters, the ultimate receiving water body (the Gulf of Mexico) has an infinite capacity to receive water, and there are no adjacent lands subject to flooding from discharge of the system regardless of whether there is any impact of the plant on the system. There is no credible evidence to support a finding that the plant will cause the system to have an adverse impact on surface and groundwater levels and flows. Rather, the more persuasive evidence shows that the plant's operation will not result in groundwater elevation in the area of the system that would cause the impoundment of water or prevent the percolation of water into the soil. In addition, the overflow levels for control structures will operate as designed to insure against over-drainage or flooding. Finally, the operation of the filter fields will not cause adverse impacts on surface and groundwater levels and flows. Water Quality Impacts The operation of the plant will not impair the water quality functions of the system. This is because the swales will continue to detain the first flush of run-off allowing the majority of the suspended solids and other pollutants to settle out regardless of the operation of the plant. Further, in the unlikely event the treated wastewater effluent reached the system, it would be indistinguishable from the stormwater or rainfall due to the high level of treatment from the plant, the filter fields and dilution from groundwater and rainfall. The operation of the plant will not cause adverse water quality impacts on the receiving waters. In making this finding, the undersigned notes initially that the plant is permitted by DER, and therefore it is assumed to comply with all DER water quality standards. Second, there is no evidence that the system will impact the operation of the plant. In the event the groundwater mixed with treated effluent resurfaces, there would be no adverse impact to the surface water quality. This is because the treated effluent from the plant exceeds state water quality standards. Once the treated effluent becomes a part of the groundwater, it is unlikely that it will resurface again in the areas of the swales, which are more than one hundred ten feet away. Indeed, in order for the groundwater with effluent to travel that distance, it would have been in the groundwater system for at least one hundred days. This period of time is more than sufficient for the denitrification and adsorption processes to remove all nutrients. Even if the worst case scenario became a reality and the groundwater reached the swale bottoms, it would only result in a wetting of the ground and would not be of sufficient quantity to create a flow of water in the swale to travel off-site impacting a receiving water. In any event, at that point, any groundwater resurfacing that distance away would no longer be effluent. Finally, during abnormal conditions, such as a hurricane or large storm event, the groundwater may rise to the surface and mix with the surface water and enter the system. However, any effluent already significantly diluted under normal circumstances would be indistinguishable from the stormwater or rainfall. Adverse Environmental Impacts There is no credible evidence that the operation of the plant filter fields will adversely impact the system in such a manner as to cause an adverse environmental impact. In so finding, the undersigned rejects the contention that the system will act as a conduit for treated effluent to travel off-site to the ponds, marsh, mangrove areas or receiving waters. The evidence shows that the design of the filter fields and high permeability of the island soils will prevent the surface flow of effluent to the system swales. The elevation of the swales above the groundwater table level will prevent the introduction of effluent into the swale system. In the unlikely event the groundwater reaches the bottom elevation of the swale, there would be no significant environmental impact because the quality of effluent would be indistinguishable from the groundwater due to the high level of treatment and dilution, and such water would still be further treated by the system before discharge to receiving bodies. The location of the plant and system will not have an adverse impact on the gopher tortoise population on the island. Rather, the system should enhance the gopher tortoise population by providing mananged land with vegetation suitable for gopher consumption. Further, the general development on the island will reduce the number of raccoons which prey on gopher eggs and young gophers. Miscellaneous During the remand hearing, FAS presented evidence concerning the impact of tides and mean sea level rise and saline lakes on the island. This evidence was essentially the same as that presented in the prior hearing and was rejected in favor of the more credible evidence presented by the applicants on this issue. Nothing was presented during the remand hearing which would alter these prior findings. During the hearing, and in response to a question by District counsel, witness Missimer agreed it would not be unreasonable to install a few monitoring wells to insure that the system is operating properly. Because this requirement is not unreasonable, will serve a valuable purpose, and has been utilized by the District as a special condition on numerous prior occasions, it should be incorporated into the permit conditions. Even though the evidence clearly shows that seasonal tidal fluctuations would not have an adverse impact on the functioning of the system, if such a tidal incursion were to occur, the placement of a check valve device on the water control structures would prevent sea water from flowing back into the system. Such a device would be a minor addition to the system, would not otherwise affect its design, and if deemed necessary by the District, should be incorporated into the permit conditions. Prior to hearing, the District retained the services of an outside consultant to assist it in preparation for trial. The consultant did not testify at final hearing and prepared no reports. He did make several computer runs, none of which are a part of this record. Among other things, District witness Rogers relied upon the computer runs in formulating his opinion on the issue presented on remand.
Recommendation Based on the foregoing findings of fact and conclusions of law, it is RECOMMENDED that a final order be entered granting the requested permit in accordance with the agency's proposed agency action dated March 28, 1990. DONE and ENTERED this 22 day of March, 1991, in Tallahassee, Florida. DONALD R. ALEXANDER 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 22 day of March, 1991.
