Comprehensive Plan for the City of Plant City Florida Conservation and Aquifer Recharge As amended by the City of Plant City City Commission April 13, 2009 (Ordinance 11-2009) Department of Community Affairs Notice of Intent to Find Comprehensive Plan Amendments in Compliance published June 16, 2009 [DCA Docket No. 09-1ER-NOI-2902-(A)-(I)] Effective Date: July 7, 2009 Comprehensive Plan Amendment Number and Description Ordinance Number, Effective Date Adoption Date PC/CPA 11-04– – A text amendment to Ordinance 28-2012, September streamline and improve the 2012 understanding of the CARE. Effective Date: October 18, 2012 & 10, Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge City of Plant City Conservation and Aquifer Recharge TABLE OF CONTENTS PAGE I. EXECUTIVE SUMMARY .................................................................................. 5 II. INTRODUCTION ............................................................................................ 5 A. PURPOSE OF THE CONSERVATION AND AQUIFER RECHARGE ELEMENT............... 5 B. NEED FOR A CONSERVATION AND AQUIFER RECHARGE ELEMENT ..................... 6 C. ELEMENT ORGANIZATION .......................................................................... 6 III. INVENTORY AND ANALYSIS ............................................................................. 7 A. GEOGRAPHIC SETTING .............................................................................7 B. CLIMATE AND WEATHER ...........................................................................7 C. GEOLOGY ..............................................................................................7 D. SOILS ..................................................................................................8 E. MINERAL RESOURCES ..............................................................................9 F. SURFACE WATER RESOURCES ..................................................................9 G. ECOSYSTEMS MANAGEMENT ....................................................................11 H. NATURAL PRESERVES .............................................................................11 I. AIR QUALITY ..........................................................................................12 J. HAZARDOUS MATERIALS ..........................................................................13 K. NATURAL DRAINAGE FEATURES.................................................................14 L. SURFACE HYDROLOGY.............................................................................15 M. NATURAL GROUNDWATER AQUIFER RECHARGE AND DISCHARGE ....................15 N. STORMWATER MANAGEMENT ....................................................................18 O. WATER SUPPLY SOURCES AND ALTERNATIVES .............................................19 P. EXISTING REGULATIONS AND PROGRAMS ....................................................20 IV. GOALS, OBJECTIVES AND POLICIES* ............................................................. 24 V. STRATEGIES FOR IMPLEMENTATION*.............................................................. 50 VI. SUPPORT DOCUMENTS SUMMARY ................................................................. 54 “*” Denotes Adopted Sections and Maps Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 3 TABLE OF FIGURES PAGE FIGURE 1: SOILS MAP* ............................................................................................... 56 FIGURE 2: COMMERCIALLY VALUABLE MINERALS* .......................................................... 57 FIGURE 3: MAJOR DRAINAGE BASINS, RIVERS, BAYS, LAKES & HARBORS* ........................ 58 FIGURE 4: 100 YEAR FLOOD PLAIN* ............................................................................. 59 FIGURE 5: NATURAL RESOURCES, WETLANDS* .............................................................. 60 FIGURE 6: NATURAL SYSTEMS AND LAND USE LAND COVER INVENTORY* ........................... 61 FIGURE 7: BIODIVERSITY HOT SPOTS ........................................................................... 62 FIGURE 8: CONSERVATION LAND USE AND ELAPP AREAS ............................................... 63 FIGURE 9: STRATEGIC HABITAT CONSERVATION AREAS ................................................... 64 FIGURE 10: POTENTIOMETRIC SURFACE CONTOURS OF THE FLORIDAN AQUIFER ................. 65 FIGURE 11: REPORTED SINKHOLES .............................................................................. 66 FIGURE 12: AREAS OF NATURAL RECHARGE TO THE FLORIDAN AQUIFER............................ 67 FIGURE 13: AREAS SUSCEPTIBLE TO GROUNDWATER CONTAMINATION .............................. 68 FIGURE 14: EXISTING AND PROPOSED WELLS AND WELLFIELDS ....................................... 69 FIGURE 15: WELLHEAD RESOURCE PROTECTION* ........................................................... 70 “*” Denotes Adopted Sections and Maps Page 4 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge I. EXECUTIVE SUMMARY The Conservation and Aquifer Recharge Element is an important portion of the City of Plant City’s comprehensive planning and growth management process. In a rapidly urbanizing area such as west central Florida, it is critical to protect the natural environment which supports our lives. In protecting the environment, we protect the health, safety and welfare of Plant City’s citizens, as well as maintaining the desired quality of life. While this Plan is providing for an increased level of economic development and population within Plant City’s boundaries, it must ensure that the natural resources and environmental qualities that make the City an attractive living environment are protected from undue degradation and abuse. The air, land and waters of Plant City must remain an asset now and for future City inhabitants. The Tampa Bay region is projected to maintain its rapid rate of growth, and in light of that growth, a key role of the Conservation and Aquifer Recharge Element in the growth management process is to ensure that the quality of Plant City’s natural and man-made environment is maintained or improved. II. INTRODUCTION A. PURPOSE OF THE CONSERVATION AND AQUIFER RECHARGE ELEMENT The purpose of the Conservation and Aquifer Recharge Element is to provide a plan and policy direction for the preservation, conservation, and management of the natural resources of importance to the citizens of the City of Plant City. This Element is intended to provide guidelines for current and future governmental programs and decisions related to the protection and enhancement of the City’s natural environment and the public health, safety and welfare. The objective of the Conservation and Aquifer Recharge Element is to ensure that the air, land, water, and living resources of Plant City remain an asset to the quality of life of all existing and future inhabitants. The Conservation and Aquifer Recharge Element was prepared pursuant to the mandate of Chapter 163, Florida Statutes, as amended by the Local Government Comprehensive Planning and Land Development Regulation Act of 1985. This Act requires the development of a comprehensive plan by each local government in the State of Florida. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 5 B. NEED FOR A CONSERVATION AND AQUIFER RECHARGE ELEMENT Plant City, by virtue of its subtropical climate and variable hydrology and geology, supports a rich and diverse complement of natural resources. The City is underlain by the Floridan aquifer, the largest and highest quality potable water aquifer in the state. The karst topography of the region has created a mosaic of solution sinks and depressions that contain a wide variety of wetland flora and fauna. Over the past hundred years, however, development has slowly degraded the rich, natural resources of the City. The unregulated filling of wetlands, discharge of pollutants, clearing of forests, channelizing of streams, and overpumping of groundwater has altered much of the original natural resource base. Environmental protection programs initiated at the federal, state, regional and local levels have done much to stem the tide of this degradation. However, advance planning and further safeguards are needed to ensure the preservation and conservation of the City’s remaining natural resources for future generations. The Conservation and Aquifer Recharge Element is used to identify potential problems and to set forth a plan and policy direction for ensuring environmental protection and orderly economic growth under all projected growth scenarios. C. ELEMENT ORGANIZATION This Element contains an Inventory and Analysis section, which presents historic and current conditions upon which to base the recommended planning and management strategies and a Goals, Objectives and Policies section, which presents the recommended planning guidelines, programs and other operative provisions intended to drive private and governmental decisions regarding natural resources. Finally, the Element includes the Strategies for Implementation and Monitoring section, which recommends strategies for implementing the Goals, Objectives and Policies. The Goals, Objectives and Policies are the most critical portion of this Element, as they are adopted in ordinance form and provide the guidelines within which Plant City operates. Page 6 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge III. INVENTORY AND ANALYSIS A. GEOGRAPHIC SETTING Plant City is located in northeast Hillsborough County. The City is generally characterized by relatively flat terrain, with elevations that range between 100 and 150 feet. Elevations rise from less than 100 feet in the northwestern sector of the City to approximately 150 feet near the Plant City Airport. Most of Plant City falls within the Polk Uplands physiographic province, which is comprised of relict beaches and sand dunes. Drainage in the area is generally very good, with relatively little surface runoff. B. CLIMATE AND WEATHER The climate of Plant City is humid subtropical, characterized by high mean annual rainfall and temperature. The mean annual temperature in the City is about 72F (NOAA, 1986). Rainfall amounts in Plant City vary both seasonally and annually. Annual rainfall averages about 50.8 inches. Long lasting rainstorms during the summer months are uncommon, but when they do occur, they are usually associated with tropical storms or hurricanes. Because of its wide variability, the impact of weather on the city is significant. The area could experience a drought in the spring or summer and floodinducing hurricane the same year, calling for extensive public works to manage water accordingly. In Plant City the least rainfall occurs in the fall (October December) and in the spring (March - May). In the dry periods, low pressure systems do not influence the area nearly as frequently as in winter, and local convective shower activity is much weaker than in summer. The wet season is usually from late May to early October. C. GEOLOGY Plant City is underlain with several thousand feet of limestone layers that can contain or transmit large quantities of groundwater. Some strata are very dense, and limit vertical migration of water underground. These confining layers are very important for groundwater conservation. The limestone layers, which are deposits of ancient marine sediment, are usually covered by sands and clays. (Water Resources Atlas of Florida, 1984) Four geologic layers underlay Plant City. The oldest of the four, the Suwannee Limestone, is successively overlain by two other limestone layers — the St. Marks/Tampa and Hawthorn Formations – and topped by a final unconsolidated layer. The Hawthorn layer is especially important as a top confining layer for the Floridan aquifer. All these layers, especially the Suwannee, are rich in fossils. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 7 D. SOILS (Reference: Figure 1) There are four broad divisions of soil associations in Plant City. Each area consists of more than one kind of soil. For general planning purposes refer to the USDA Natural Resources Conservation Service publication, “Soil Survey of Hillsborough County, Florida” for a detailed description of soil types in Plant City. 1. SOIL LIMITATIONS Due to the flat topography and relative uniformity of soil distribution in Plant City, soil limitations generally do not preclude structural development, except in extreme cases (e.g., wetland soils). Instead, these limitations require that engineering modifications be made to the site prior to construction. Soils with few limitations can easily be made suitable for development, while moderate limitations may require more extensive alterations. Future development should utilize soil types in a manner identified by the Natural Resources Conservation Service to conserve and protect the natural functions of existing soils. The use of septic systems for the treatment and disposal of sewage effluent may, however, be significantly limited by site specific soil conditions. The location of septic systems in improper soils may result in several undesirable effects. If the soils have high wetness and poor permeability, then the discharged effluent does not percolate properly and may runoff into and contaminate adjacent surface waters. In excessively well-drained deep sand, septic effluent can migrate too rapidly for purification processes to occur, and carry contaminants into the groundwater supply. Extreme prudence should be used when permitting septic tanks in very well drained soils. If a large number of tanks sited on highly permeable soil generate effluent that reaches the potable water supply without sufficient filtering, severe water quality problems can arise. The surficial aquifer, and even the primary artesian aquifer (Floridan), are all subject to contamination from septic wastes. 2. SOIL EROSION According to the Natural Resources Conservation District (a division of the U.S.D.A.), there are no chronic soil erosion problems in Plant City. Temporary soil erosion problems often occur during land clearing for development; however, this can be controlled through the implementation of Best Management Practices (BMPs). Page 8 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge E. MINERAL RESOURCES (Reference: Figure 2) The most significant mineral resource in Hillsborough County is phosphate, which has been mined throughout the area. From a land use perspective, phosphate mining has the greatest impact of any mineral resource in Hillsborough County. There are no active mines within Plant City. Phosphate deposits are found primarily in the eastern and southeastern portions of Hillsborough County. Obviously, those deposits found under the urbanized area of Plant City are no longer available for extraction. Plant City’s zoning ordinance, section 111.23(2) prohibits excavation of soil other than for use on the premises or for the alteration in grading of a specific site for building purposes. F. SURFACE WATER RESOURCES (Reference: Figure 3) Freshwater systems of the Plant City area include seven major drainage basins: Campbell Creek, Hollomans Creek, Itchepackesassa Creek, English Creek, the Little Alafia River, Turkey Creek, and Baker/Pemberton Creek, the flow from all of which ultimately enters Tampa Bay. Several riverine systems within the Plant City area are Pemberton Creek, Sparkman Branch, the tributaries of Turkey and Itchepackesassa Creeks, Water Oak Branch, English Creek and Howell Branch. Lakes of note within the City are Walden Lake and several former phosphate pits. Surface water flows are not only a product of runoff, but may also include a ground-water baseflow component. In fact, many surface water systems in Plant City and west central Florida are closely interconnected with the underlying groundwater system through springs and sinkholes. In accordance with hydrologic conditions, these natural interconnections may augment flow, reduce flow, or perform both functions intermittently. Because this region manifests annual wet and dry seasons with significant variations in precipitation frequency and intensity, the contribution of surface runoff and groundwater baseflow to streams varies. This cyclic pattern of changing baseflow conditions results in variable surface water quantity and quality. Stream flows are generally lowest during April and May. Unfortunately, high municipal water demands historically occur during this same seasonal time period because of the increased demand for irrigation of lawns and crops. Rivers, lakes and wetlands within Plant City are identified as Class III waters, deemed suitable for recreation and propagation and protection of fish and wildlife as classified and specified in Chapter 62-302, FAC. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 9 1. WATER QUALITY Most of the freshwater systems in Plant City exhibit good water quality on an average annual basis, which is suitable for the support of a healthy and diverse complement of fish and wildlife species. However, given the fact that many surface waters in the region are fed by oxygen deficient groundwater and would exist in a eutrophic state in the absence of anthropogenic nutrient additions, periodic low dissolved oxygen levels in many streams and lakes are observed. 2. LAKES AND PONDS Lakes typically are larger bodies of standing water, in which open water areas predominate over shallow vegetated areas, while the inverse is typical of ponds. There are several small lakes in the City. Walden Lake is the largest at sixty acres in size. Other than Walden Lake, which has a boat ramp and dock, lakes and ponds are not a major feature in the City. The other small lakes and ponds in the City were either formed by solution activities or are former borrow or phosphate pits that have taken on the characteristics of lake systems. 3. NATURAL WETLANDS (Reference: Figure 5) Depressional wetlands in the area may be classified into several categories: cypress ponds and strands, swamps, marshes, bayheads, and cypress domes. These wetlands are influenced by and dependent on certain water budgets. Wetland functions include improving water quality by filtering out nutrients, toxic substances, and disease-causing micro-organisms; protection of shorelines and banks from erosion; storage of flood waters; and enhancement of biota in terrestrial and aquatic ecosystems adjacent to them. Wetlands are classified, and their functions and benefits described, in the Ecosystems Management section of this Element. 4. FLOODPLAINS (Reference: Figure 4) Much development has occurred in Hillsborough County, throughout Florida, and around the country, which not only deprives us of future water reserves, but also runs a high risk of destruction should a flood occur. The City is a participant in the Federal Emergency Management Agency’s (FEMA) flood insurance subsidization program and as such has adopted a Flood Damage Control Ordinance. This ordinance complies with FEMA requirements, which requires particular building standards and that structures be built above the minimum flood elevation. Page 10 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge G. ECOSYSTEMS MANAGEMENT (Reference: Figure 6 and Figure 7) Plant City and the State of Florida are unique because of the wide diversity of natural plant communities or habitats for wildlife resources. Climate and geography, combined with soil composition, rainfall patterns and coastal influences, provide a mosaic of habitats. Ten vegetative communities occur in the Plant City area: pine flatwoods, dry prairies, sandhills, xeric hammocks, mesic hammocks, hardwood swamps, cypress swamps, freshwater marshes, sand pine scrub and wet prairies. Historically, Plant City was covered with deciduous (predominately oak), mixed, and coniferous (predominately pine) forests. Now, virtually all climax forests have been cut, with present woodlands consisting of second and third generation growth. Wetlands areas in Plant City have been severely impacted, yet significant wetlands still exist. Much of the well-drained and somewhat slightly well-drained land that was first cleared for agricultural purposes has now given way to urban development. Longleaf pines, shrubs, and grasses were the principal vegetation on well-drained areas. Where natural succession has occurred since the original lumbering, turkey oaks and blackjack oaks have grown, with live oaks in the less well-drained areas. Climax conditions typically include the presence of oak, hickory, magnolia and longleaf pine. Additionally, urban development has created the opportunity for increasing occurrences of exotic plants and trees, most notably the Brazilian pepper (Schinus terebinthiofolius), Australian pine (Casuarina spp.), and punk tree (Melaleuca quinquenervia). Currently, there is still a variety of natural plant communities in Plant City. H. NATURAL PRESERVES (Reference: Figure 8 and Figure 9) Natural preserve lands are those lands that are maintained and managed in essentially their natural state with the primary objective of conserving and protecting their environmentally unique, irreplaceable and valued ecological resources. Natural preserve lands provide recreation and aesthetic benefits and are open to public use and enjoyment, to the extent that such uses are compatible with the conservation and protection of these lands. In 1987, Hillsborough County passed a referendum creating the Environmental Lands Acquisition and Protection Program (ELAPP) under the administration of the Parks and Recreation Department. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 11 In addition to the local ELAPP program, the Conservation and Recreation Lands (CARL), and Save Our Rivers (SOR) programs, administered at the state and regional levels, respectively, offer additional alternatives to local acquisition. I. AIR QUALITY Air quality is a valuable natural resource, the protection of which should be given high priority. The quality of the air directly affects the health and welfare of Plant City’s residents. The City, like most urban areas, experiences periodic air quality problems due to industrial facilities (point sources) and automobiles (mobile sources) in and around Plant City. While air quality concerns are present as a result of these activities, severe conditions are often localized and temporary due to prevailing winds and the area’s open topography. Air quality in Plant City and Hillsborough County is regulated at the federal level by the U. S. Environmental Protection Agency, at the state level by the Florida Department of Environmental Protection, and at the local level by the Environmental Protection Commission of Hillsborough County. Through a specific operating agreement with FDEP, the EPC is charged with enforcing air quality regulations and permitting and compliance activities throughout Hillsborough County. The EPC also implements its own programs and regulates activities for open burning, odor and dust control to ensure that air quality problems are not exacerbated by growth in Plant City or Hillsborough County. While Plant City cannot establish higher discharge standards or require the application of pollution control technologies, there is much that local comprehensive plans can contribute toward air quality protection. For example, segregating lands by their use can play an important role in the planning process. As growth continues in Plant City and Hillsborough County, concern over shrinking distances between industrial and residential properties may increase. Without these considerations and safeguards, residential property may be negatively impacted by adjoining industrial operations that generate noise, dust and odor nuisances. However, it should be noted that the municipality’s industrial land use plan category does not permit industrial operations that produce excessive noise, dust or odors, which might impact adjacent non-industrial uses within the City of Plant City. 1. PAST AND PROJECTED AIR POLLUTION IMPACTS In 2006, EPC’s Air Monitoring Section operated 23 air monitors for national and state air quality standard assessments, and 28 special purpose monitors which collect specific air quality data on pollution problems unique to Hillsborough County. These air monitors measured the levels of all federally required pollutants: sulfur dioxide, nitrogen oxides, ozone, particulate matter, Page 12 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge carbon monoxide and lead. These pollutants are the most prevalent and have the greatest overall adverse impacts on health. The table below illustrates the Air Quality for the Tampa Metropolitan Area over the past ten years. TABLE 1 AIR QUALITY FOR TAMPA METROPOLITAN AREA Air Quality was measured in Terms of Unhealthy Days for Sensitive Individuals (1995-2006) Year 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Number of Unhealthy Days 7 11 2 10 13 4 5 0 4 1 5 3 Source: Air Quality Technical Reports, EPC, 1997-2006 2. ABATEMENT POTENTIAL The current local, state, and federal efforts have made progress in improving air quality. Continued regulation of point sources by EPC, FDEP, and EPA through the permit process, compliance monitoring and enforcement of permit conditions, as well as voluntary emission reduction and energy conservation efforts will be vital to reduce pollution levels and improve air quality in Plant City. J. HAZARDOUS MATERIALS Please refer to the Public Facilities Element, Solid Waste Sub-Element for information on Hazardous Waste. The following sections (Sections K-P) relate in particular Groundwater and Aquifer Recharge issues in the Plant City area. to Natural K. NATURAL DRAINAGE FEATURES 1. GEOLOGY OF THE REGION In the Plant City area, groundwater originates through rainfall on land surfaces throughout the region, particularly those lands lying to the north and Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 13 northwest of Plant City and the Green Swamp, where the rain can percolate to underlying strata. Most of this water moves to the water table via seepage through top soils and discharges to surface collectors such as lakes, streams, or surrounding bays. The remainder reaches and recharges the deeper underlying Floridan aquifer. The strata underlying the region can be divided into units based on groundwater: the upper, unconfined water table aquifer, a layer of confining deposits, and the deeper Floridan aquifer. 2. GROUNDWATER LEVELS (Reference: Figure 10) The potentiometric surface of a confined aquifer is the elevation that water would rise to if it were unconfined, and is generally an expression of the “hydraulic head” or recharge pressure within the confined aquifer. The potentiometric surface of the Floridan aquifer varies seasonally, with highest and lowest levels occurring in September and May, respectively. September is normally the end of the wet season, stress is placed on the aquifer in May because seasonal rains have not yet begun and lawn sprinkling is heaviest. Also, seasonal population is at its peak in late winter and early spring. This places additional demands on the freshwater supply at a time when rainfall is least. However, the amount of rainfall is the most important factor in dictating the altitude of the potentiometric surface of the Floridan aquifer. Groundwater flow in the upper Floridan aquifer in Plant City is generally northeast to west and southwest. Hydrographs of observation wells in Hillsborough County indicate a general decline in water levels since 1955. The greatest declines appear between 1965 and 1975. Excessive groundwater withdrawals have, in the past, resulted in significant wetland and lake drawdowns, leading to both temporary and permanent ecological damage to these natural systems. 3. FRESHWATER/SALTWATER RELATIONSHIPS Throughout Florida, saltwater underlies freshwater aquifers at depths that range from 2,500 ft. in the center part of the state to almost zero along the coasts. Any development that lowers the freshwater level in an aquifer causes some movement, or encroachment, of saltwater. To date, saltwater intrusion throughout the Plant City area has been negligible. L. SURFACE HYDROLOGY 1. SPRINGS There is no evidence that there are any major springs in Plant City. Page 14 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge 2. SINKHOLES (Reference: Figure 11) Sinkholes are part of the natural process of erosion in limestone terraces. Defined, a sinkhole is “a depression in the land surface formed either by solution of near-surface limestone or similar rocks or by collapse of the roof of underground channels and caverns” (Water Resources Atlas, 1984). Sinkhole areas are unsuitable for development. Sinkholes are uncommon in Plant City. M. NATURAL GROUNDWATER AQUIFER RECHARGE AND DISCHARGE 1. AQUIFER RECHARGE AND DISCHARGE Recharge can be defined as the replenishment of groundwater in an aquifer by artificial or natural means. Recharge to the surficial or water table and Floridan aquifers occurs primarily as a result of infiltration of rainfall. The water management districts are to designate prime recharge areas, the law provides no statutory definition of “prime.” Water management districts, therefore, are to determine the meaning of “prime” for those recharge areas of greatest importance and value. 2. RECHARGE AREAS - PLANT CITY (Reference: Figure 12) The delineation of aquifer recharge areas in the Plant City area has been mapped by the United States Geological Survey (USGS), and the area has been designated as a very low recharge area by the Southwest Florida Water Management District (SWFWMD). This may include some areas where the thickness and extent of the confining bed is not known. Recharge is low where confining beds are of sufficient thickness and extent to physically restrict movement of water into the Floridan, or where the confining bed is absent but both the water table and potentiometric surface of the Floridan are close to the land surface. Recharge is moderate where the confining bed is locally thin or breached and where the water table is considerably higher than the potentiometric surface. 3. GROUNDWATER CONTAMINATION (Reference: Figure 14 and Figure 15) Maintaining high quality groundwater and preventing contamination is a strong concern to the residents, administration and elected officials of Plant City. Groundwater provides the only potable water source in the area, and is vulnerable to groundwater pollution (the source of which is often difficult to identify and almost always costly to correct). Increases in regional population increase the potential for contamination and subsequent depletion of the groundwater resource, providing a need for the application of appropriate pollution control and growth management strategies. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 15 4. AQUIFER CONTAMINATION (Reference: Figure 13) The Southwest Florida Water Management District has delineated areas susceptible to aquifer contamination in Plant City and Hillsborough County. To do this, SWFWMD utilized the DRASTIC methodology developed by the U. S. Environmental Protection Agency. DRASTIC maps are constructed by individually mapping variations of the seven DRASTIC parameters. Each of the seven parameters is then assigned a rating. In the case of depth to water in Hillsborough County, 0-5 feet is assigned a rating of 10, 5-15 feet a rating of 9, and a depth of water greater than 100 feet a rating of 1. In addition to ratings, each of the seven parameters are assigned a weighing factor relative to their importance relative to restricting the potential for the groundwater system to become contaminated. The weighing factors of the seven parameters are: Parameter Depth to water net Recharge Aquifer media Soil media Topography Impact of the vadose zone hydraulic Conductivity Weighing Factor 5 4 3 2 1 5 3 Once the seven parameters are individually mapped and assigned ratings, the seven maps are superimposed, and composite DRASTIC areas are formed. These composite areas are assigned DRASTIC indices, which are the sum of the products of the ratings and weights of the seven parameters for the individual composite areas. Finally, DRASTIC indices of the composite areas are grouped in categories for ease of map discernability. These categories are listed below: Page 16 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Category 200+ 180-199 160-179 140-159 Color Red Orange Yellow Light Green Category 120-139 100-119 80-99 79 and below Color Dark Green Light Blue Indigo Violet Interpreting DRASTIC maps is quite simple; the higher the DRASTIC index, the greater the groundwater pollution potential. It should be noted that the DRASTIC methodology was developed to be applied universally for hydrogeologic units 100 acres or greater in size. Although the maps produced provide a generally useful tool for directing development, waste disposal and other land use activities away from contamination-prone areas, maps of much greater resolution will be necessary to definitively identify and protect such areas. Furthermore, due to the unique hydrogeology of westcentral Florida, the DRASTIC methodology can provide misleading results. Particularly, the competency of the clays overlying the intermediate and upper Floridan aquifers is, in most cases, less than that found in “typical” clay units, primarily due to breaching. Therefore, the methodology may actually underestimate the degree of contamination potential in many areas. 5. POTENTIAL WATER QUALITY PROBLEMS Plant City depends solely upon groundwater to meet its domestic potable water supply needs. There are, however, certain areas where water quality violates recommended maximum contamination levels, due primarily to localized hydrogeologic conditions and man’s influences. At times, the quality of water pumped from local aquifers does not meet drinking water standards because of mineralization. The degree of mineralization is referred to as the “hardness” or “softness” of the water. 6. UNDERGROUND STORAGE AND TRANSPORT FACILITIES Underground storage of gasoline, kerosene and other petroleum products in steel tanks has proven to be a source of contamination of considerable proportions nationally. Steel tanks are now being replaced by fiberglass or other leak-resistant materials, and all service stations and other facilities that have used underground storage are now required to install monitoring wells and to monitor for groundwater contamination at regular intervals. Buried pipelines are another source of potential contamination and are typical of commercial enterprises. They normally are carefully monitored where vaporizing compounds such as natural gas can be detected. Slowly leaking petroleum products are much more difficult to detect. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 17 7. UNDERGROUND DISPOSAL FACILITIES Landfilling of garbage is a common practice nation-wide. However, there are no active landfills located in the City of Plant City. There are several abandoned landfills/dump sites in the Plant City area, posing only a minimal potential for surface or groundwater contamination. (This information is from County Government Hazardous Waste Management Assessment for Hillsborough County, ESE/TBRPC, 1984, page 4-15.) There is also a Superfund site, Schuykill Metals, located within the City limits. Battery casing scraps have been removed by the company under a 1983 consent order between Schuykill Metals and the Florida Department of Environmental Regulation (now Department of Environmental Protection, FDEP). N. STORMWATER MANAGEMENT 1. STORMWATER RUNOFF Stormwater runoff, or the water flowing over land surfaces during and immediately after a rainfall, carries almost every kind of pollutant. More than half of all pollutants entering surface waters have been carried by stormwater runoff, which enters the system from non-point sources. Runoff can contribute from 80-95 percent of the annual heavy metal loading (for example, lead, zinc, iron, cadmium) to all of Florida’s surface waters (Wanielista et al., 1976). EPA regulates the quality of stormwater run-off through the National Pollutant Discharge Elimination System (NPDES) permitting process. However, in the state of Florida, the control of stormwater is so closely related to the regulation of water management for flood control and water resource protection, and is carried out by SWFWMD. 2. SPRAY IRRIGATION OF WASTEWATER The most common form of land application of wastewater is spray irrigation, the controlled discharge of effluent, generally secondarily treated, to land surfaces to promote plant growth. While the City does not currently have a zero discharge facility, and permitting future expansion to its outfall will be challenging, the City is always striving to meet 100% reuse and therefore continues to enroll and execute agreements with potential new reclaimed water users. 3. ON-SITE SEWAGE DISPOSAL SYSTEMS (SEPTIC TANKS) On-site Sewage Disposal Systems (OSDSs, aka, septic tanks) are primarily underground concrete boxes that receive and provide for the preliminary treatment of human sewage effluent. Solids are settled out, bacteria-induced decomposition occurs, and the remaining liquids are dispersed to surrounding soils. Dense concentrations of septic tanks can cause their efficiency to Page 18 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge decrease, and increase the potential for groundwater contamination. The potential for well-water contamination is also mitigated by the availability of public water in potential problem areas. This does not prevent environmental degradation, but does provide a potable water supply unaffected by local groundwater conditions. There are many existing septic tanks within the municipality, however new residential development within 250 feet of existing municipal sanitary sewer lines is required to connect. All other types of development are required to connect to municipal sanitary sewer service regardless of the distance to existing lines. O. WATER SUPPLY SOURCES AND ALTERNATIVES 1. CURRENT AND PROJECTED WATER USE (Reference: Figure 15) The Plant City Water Department maintains four (4) water supply wells to serve customers located within and outside the city limits. The wells are designated as numbers 5, 6, 7 and 8, all of which draw their water from the Floridan aquifer. Additional information on water supply is located in the Potable Water Sub-Element of the Public Facilities Element. 2. WATER CONSERVATION Water conservation plays an important role in the City’s efforts to plan for future water supplies, wastewater disposal, and environmental protection. Typically, as areas experience growth, inexpensive sources of water are developed first. As growth continues, remaining sources become more expensive to bring to specific locations. Also, with increasing water use, more wastewater treatment and disposal is required. Minimum per capita water consumption goals developed for the Northern Tampa Bay Water Use Caution Area (NTBWUCA) by the Southwest Florida Water Management District (SWFWMD) shall be the minimum guidelines used by the city to measure the success in implementing water conservation measures. 3. WASTEWATER REUSE Proper management of the groundwater resource requires consideration of the potential for reuse of wastewater. Reuse can decrease demands for potable water, help solve limitations on the disposal of wastewater effluent, and lessen the effects of excessive groundwater withdrawal. A reuse master plan is currently under development. P. EXISTING REGULATIONS AND PROGRAMS Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 19 1. FEDERAL REGULATIONS Congress has passed five major acts to address groundwater regulation. These are discussed below, and include: the Clean Water Act of 1972; the Safe Drinking Water Act of 1974; the Resource Conservation Recovery Act of 1976; the Toxic Substances Control Act of 1976; and the Surface Mining Control and Reclamation Act of 1977. 2. CLEAN WATER ACT - PUBLIC LAW 92-500 - EPA, U.S. ARMY CORPS OF ENGINEERS The passage of the Federal Water Pollution Control Act Amendments of 1972 (1972 FWPCA) and the amendments of 1977 had a major impact upon the water resources of the nation. This law, which delegated authority over surface waters and groundwaters to EPA, is now known as the Clean Water Act. The objective of the Act is “to restore and maintain the chemical, physical, and biological integrity of the nation’s waters”. The national goal of eliminating the discharge of pollutants to navigable waters by 1985 evolved into what is now known as the National Pollutant Discharge Elimination System (NPDES) permit program. Authority for the NPDES program is established under Section 402 of the Clean Water Act. The program addresses point source pollutant discharge and requires the control of pollutants discharged into federal waters. Groundwater receives some protection from Section 208 of the act. This section provides for the development and implementation of areawide water quality management plans. The Tampa Bay Regional Planning Council is the designated area wide agency for this region, and it published the Areawide Water Quality Management Plan for the Tampa Bay Region in 1978. The intent is to develop ways to protect regional groundwater resources from point and non-point source pollution. In addition, Section 404 of this Act provides the Army Corps of Engineers with the authority to regulate dredge and fill material and its disposal to Waters of the United States. In some cases, dredge and fill activities can alter the hydrologic regime of an area and thus affect the groundwater resources. 3. THE SAFE DRINKING WATER ACT OF 1974 The Safe Drinking Water Act of 1974 corrected some of the deficiencies of the Clean Water Act. It succeeded in certain areas by establishing a federal regulatory mechanism to insure the quality of publicly supplied drinking water. The act provides programs to combat groundwater pollution, in addition to granting EPA the authority to set drinking water standards and treatment technologies for public water supply systems. The three (3) main provisions of the Act affecting ground water are: 1) the Underground Injection Control Program; 2) the Gonzales Amendment; and 3) the Primary Drinking Water Standards. Page 20 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge 4. THE RESOURCE CONSERVATION AND RECOVERY ACT OF 1976 (RCRA) - EPA This act complements the efforts of the Clean Water Act and the Safe Drinking Water Act by addressing additional sources of pollution. It increases federal supervision over the land disposal of municipal waste discharged into any waters, and over the generation, treatment, storage, and disposal of hazardous waste. It supplies EPA and states with certain necessary provisions to protect the environment from improper waste management. 5. THE TOXIC SUBSTANCE CONTROL ACT OF 1976 - EPA The Toxic Substance Control Act (TSCA) was passed shortly after RCRA, and the two acts periodically overlap. TSCA authorizes EPA to regulate toxic pollutants throughout their production, consumption, and disposal. It is designed to protect human health and the environment by establishing testing requirements and restricting the use of certain chemical substances. By recognizing that improper disposal of these substances presents unreasonable risks, TSCA provides additional protection of groundwater. 6. SURFACE MINING OF INTERIOR CONTROL AND RECLAMATION ACT OF 1977 - U. S. DEPARTMENT This Act requires operating permits, mining and reclamation plans, reclamation bonds, and permit approval procedures for surface mines. It is designed to minimize the environmental effects of surface mining (with some exemptions for phosphate mining) on water resources, and therefore provides additional protection of groundwater. There are no surface mines in Plant City. 7. STATE REGULATIONS Regulations by the State and the Water Management District are intended to prevent adverse impacts to Waters of the State by the discharge of stormwater or drainage facilities. The regulations are intended to prevent flooding problems, maintain aquifer recharge through infiltration, manage water budgets to natural systems through the regulation of discharge quantities, and maintain the quality of wetlands and other natural systems through water quality treatment of stormwater discharges. 8. SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT The Southwest Florida Water Management District (SWFWMD) was created in 1961 by a special act of the Florida Legislature to serve as local sponsor for the Four River Basins Project, designed by The U.S. Army Corps of Engineers. In 1972, the Florida Resources Act (Chapter 373, F. S.) incorporated SWFWMD as the regulatory agency with jurisdiction over development, use and conservation of water resources within its boundaries. The jurisdictional limits include sixteen counties, including Hillsborough. Rules established by the District to implement the Act are included under Chapter 40D, Rules of the Southwest Florida Water Management District. District Rules which require permitting Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 21 and design criteria for construction of new facilities for surface water management and drainage are included under Chapter 40D-4, Management and Storage of Surface Waters, and Chapter 40D-40, General Surface Water Management Permits. The Southwest Florida Water Management District administers and enforces the following activities: stormwater discharge (management and permitting); consumptive use permits; surface water management (conceptual approval, construction and operation permits); and water-well construction. The Stormwater Rules (Chapter 62-25, FAC, adopted in 1982), technicallybased performance standards emphasize treatment of “first flush” pollutants. Discharges of stormwater which are not retained entirely on site and which eventually reach any surface water, as broadly defined by the statute, should meet the requirements of Chapter 62-25. This includes discharges to local government stormwater systems, either ditches or storm sewer pipes. Chapter 373, FS, is primarily concerned with the consumptive uses of water, including groundwater. The statute protects groundwater by establishing laws to conserve and control waters, in order to project and promote their full beneficial use. 9. DEPARTMENT OF ENVIRONMENTAL PROTECTION The Florida Department of Environmental Protection (FDEP) has as its overall goal the restoration and maintenance of environmental quality in the State of Florida. This overall goal is accomplished through the development of standards to protect natural systems, by applying these standards through permitting of potential sources of pollution, and monitoring for compliance. Additional permitting criteria for stormwater are contained in Chapter 62-4, F.A.C. Chapter 62-3, FAC, classifies Waters of the State and establishes water quality standards for those classifications. Chapter 62-302, Classified Waters, provides that the surface waters of the State of Florida are classified as Class III - Recreation, Propagation and Maintenance of Healthy, Well-Balanced Population of Fish and Wildlife, except for certain waters which are described in this section. A water body may be designated as an Outstanding Water, in addition to being classified as Class I, Class II, or Class III. Outstanding Florida Waters (OFW’s) are listed in Chapter 62-302, F.A.C. Page 22 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Class I Class II Class III Class IV Class V Surface Water Classifications and Standards Potable Water Supplies Shellfish Propagation or Harvesting Maintenance of a Healthy, Well‐Balanced Population of Fish and Wildlife Agricultural Water Supplies Navigation, Industrial, or Utility Use Groundwater sources are classified by the State of Florida, taking into consideration the use and value of waters for public water supplies. Sources of groundwater are classified G-I and G-II (potable water) and G-III and G-IV (nonpotable water). Chapters 62-520 and 62-522, FAC set minimum criteria for groundwater quality standards. 10. TAMPA BAY REGIONAL PLANNING COUNCIL The Tampa Bay Regional Planning Council (TBRPC) planning area includes Pasco, Hillsborough, Pinellas and Manatee Counties. The Council reviews local government planning documents for consistency with adopted regional plans and policies prepared by the Council. Under directive of the Governor’s Office of Management and Budget (OMB), the TBRPC serves as a clearinghouse for Federal and State funding for projects within the region. The Council is also the review agency for the region for Applications for Development Approval (ADA’s) for Developments of Regional Impact (DRI’s). The Florida Department of Environmental Regulation has designated the Council to review permit applications for wastewater treatment plants for compliance with state and regional policies. 11. DEPARTMENT OF HEALTH Under Section 381.272, FS, the Department of Health (DOH) is given general responsibility for supervision and permitting of septic tank systems generating up to 5000 gallons of domestic waste daily. This section sets standards which serve as a basis for rules set forth by DOH and establishes procedures for hearing requests for variances from these standards. Under Chapter 387, FS, discharges of sewage into groundwater is illegal unless otherwise permitted by DOH. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 23 IV. GOALS, OBJECTIVES AND POLICIES GOAL 1: Preserve, conserve, restore, and appropriately manage the natural resources of importance to the citizens of the City of Plant City, in order to maintain or enhance environmental quality for present and future generations. AIR QUALITY Issue: A primary factor in maintaining the quality of life of the residents of the City of Plant City is maintaining or improving the quality of the air we breathe. EPC is the local environmental regulatory agency delegated with enforcing air quality regulations throughout the City and Hillsborough County. EPC has been delegated with jurisdictional authority by the Florida Department of Environmental Protection (FDEP), which was delegated with responsibility for enforcing the provisions of the Federal Clean Air Act by the Environmental Protection Agency (EPA) in Washington, D.C. The EPC was created by a special act of legislature, and is not administered by, nor directly responsible to, the County Administrator or the City of Plant City. For that reason, language in this Plan does not mandate the EPC to implement the Plan’s provisions, but rather seeks a cooperative agreement between the City and the Environmental Protection Commission to ensure that the Plan is implemented and enforced. For the most part, most aspects of maintaining air quality are beyond the authority and jurisdiction of the City, which can, however, take certain actions as follows below. Objective A: The City shall cooperate as appropriate to maintain compliance with federal and state air quality standards in part by implementing the following policies and practices. Policy A.1: The City shall actively promote, through conditions in development orders, signs, media promotions and other techniques, the use of ride-sharing, car pooling, mass transit systems, safer bicycle routes, improved traffic signal timing and other techniques for reducing vehicle emissions in the City. Page 24 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Policy A.2: Reserved Policy A.3: When planning and implementing transportation system improvements, the City shall coordinate to ensure that priority be given to traffic flow improvements that reduce air pollution concentrations, particularly in areas where ambient standards are violated. The City shall also coordinate to ensure that the Florida Department of Transportation (FDOT), the Metropolitan Planning Organization (MPO), Hillsborough County and other agencies in the transportation planning and funding process give priority to traffic flow improvements that reduce air pollution concentrations, particularly in areas where ambient standards are violated. Policy A.4: The City shall promote, through conditions in development orders, signs, media promotions, by example and through other techniques, programs that implement employer-option transportation control measures that reduce peak-hour vehicle use, such as flexible work hours, employer based car-pooling and compressed work weeks. Policy A.5: The City supports the Environmental Protection Commission of Hillsborough County’s (EPC’s) continued maintenance of an air quality monitoring program to monitor progress towards future compliance with all ambient air quality standards. Policy A.6: The City will comply with the Environmental Protection Commission’s Open Burning Rule and cooperate in its enforcement. Policy A.7: The City will prohibit, other than in cases of overriding pubic interest any new stationary sources of air pollution emissions within the City’s jurisdiction. Policy A.8: The City shall promote, through appropriate land development regulations and development order conditions, energy conservation measures and the use of alternative energy sources. Policy A.9: The City will continue to cooperate with EPC in its local hazardous and toxic air pollutants program to implement and enforce the Federal National Emission Standards for Hazardous Air Pollutants (FNESHAP) program. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 25 Policy A.10: The City shall promote, through written request, greater coordination, communication and/or cooperation among federal, state, and local agencies and governments in seeking regional compliance with ambient air quality standards, and will participate as appropriate in any regional forum to attain such compliance. Policy A.11: The City will continue programs and policies to attract environmentally compatible industrial development. Policy A.12: The City will cooperate with the Environmental Protection Commission of Hillsborough County in its enforcement of air pollution regulations. SURFACE WATER RESOURCES Issue: In the past, surface water quality in the City of Plant City has been degraded due to a variety of unregulated water uses and adjacent land use activities. The most prominent sources of water pollution have included point source discharges of domestic wastewater and urban and up-stream agricultural runoff. The passage of state and local laws aimed at controlling these sources of pollution has resulted in improved local water quality in recent years. However, some surface waters in the City are designated as “impaired” under the Clean Water Act. As such the City will work with appropriate agencies to implement Basin Management Action Plans (BMAPS) to address these impairments. EPC has been charged in its enabling legislation with minimizing water pollution throughout the City and County, and delegated the authority to review FDEP permit applications to ensure compliance with its Rules. While EPC does not have specific delegated authority to review Federal National Pollutant Discharge Elimination System (NPDES) regulations, EPC does serve to co-review and provide comments to the State DEP on such issues. For the most part, maintaining water quality is beyond the authority and jurisdiction of the City, which can, however, take certain actions as follows below. Page 26 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Objective B: The City will coordinate as appropriate with environmental agencies toward continued compliance with established water quality discharge standards, which the City will achieve in part by implementing the following policies and practices. Policy B.1: The City shall not support the reclassification of any surface water body within City boundaries except to acknowledge conditions that cannot be improved, as necessary to protect the public health, safety or welfare. The City shall, however, support the reclassification of surface water bodies to accommodate higher standards, where it can be demonstrated that improved water quality conditions will prevail in the future. Policy B.2: The City shall ensure that the discharge from any wastewater treatment plants discharging effluent into the tributaries of Tampa Bay meet advanced wastewater treatment standards, by requiring appropriate state and federal permits. Policy B.3: The City shall continue to promote environmentally acceptable effluent disposal alternatives to surface water discharge, including, but not limited to, reuse for irrigation and industrial purposes. Policy B.4: The City supports EPC in its water quality monitoring program and will assist EPC in locating appropriate monitoring locations and other activities germaine to the City. Policy B.5: If necessary to correct water quality problems, the City will cooperate with appropriate environmental regulatory agencies toward establishment of nutrient monitoring and control strategies for land uses located adjacent to surface water bodies that have been identified as significant sources of nutrients. Policy B.6: The City will cooperate with local, state and federal agencies to improve monitoring and compliance enforcement of point and non-point source discharges through an active cooperative enforcement program to be developed in conjunction with the appropriate entities. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 27 Policy B.7: The City shall require that redevelopment projects provide or support stormwater treatment improvements within the affected drainage basin where treatment facilities are lacking. The City shall require retrofitting of stormwater treatment facilities in urbanized areas lacking such facilities, where necessary to meet water quality standards. Policy B.8: The City will encourage the use of new, affordable stormwater management technology, as well as low impact development techniques in order to minimize the impervious surfaces in new developments, and to minimize pollutant loads due to stormwater runoff. Policy B.9: The City shall monitor emerging state-of-the-art stormwater treatment technology and shall cooperate with the Southwest Florida Water Management District to ensure that water quality objectives are met through the most appropriate and effective methodologies. Policy B.10: The City shall support public education programs, particularly those aimed at home-owners and small businesses that address the surface water quality impacts of improperly managed lawn litter and fertilizer/herbicide/pesticide applications. WETLANDS AND FLOODPLAINS Issue: In past decades, a significant percentage of the City and County’s original wetlands and floodplains were drained, filled, dredged and/or channelized, thus reducing or eliminating their natural functions of providing water quality treatment and productive and diverse fish and wildlife habitat. Federal, state, regional and local wetland protection laws have significantly slowed the destruction and alteration of wetlands and floodplains. However, increased growth pressure in the more marginallydevelopable portions of the City will place even greater stresses on remaining resources in the future. Through its Wetland Rule (Chapter 1-11, Rules of EPC), the EPC has primary jurisdiction over all wetlands throughout Hillsborough County and its municipalities, although the SWFWMD and U. S. Army Corps of Engineers may Page 28 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge also exercise jurisdiction over both isolated wetlands and Waters of the State and nation. Objective C: The City shall continue to apply a comprehensive planning-based approach to the protection of wetland ecosystems assuring no net loss of ecological values of functions performed by wetlands and other surface waters and 100-year floodplain storage volume for projects in Plant City. Policy C.1: The City, through the land use planning and development review processes, and in cooperation with the Environmental Protection Commission, shall continue to conserve and protect wetlands and floodplains from detrimental physical and hydrological alteration. Policy C.2: The City shall prohibit the unmitigated channelization of natural stream courses, and shall restrict the hardening of their shorelines to cases where it is necessary to prevent erosion. Shoreline erosion should be controlled through the use of natural vegetation in order to maintain both water quality and wildlife habitat. Policy C.3: The City, through the land planning and development review processes and in cooperation with the Environmental Protection Commission, shall continue to prohibit unmitigated encroachment into the 100-year floodplain of riverine systems and wetlands. Policy C.4: Reserved Policy C.5: Reserved1 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 29 Policy C.6: The City, through the land development review process and in cooperation with the Environmental Protection Commission and the Southwest Florida Water Management District, shall continue to promote the use of desirable native wetland plant species for the creation of wetland habitat and for biologically enhanced filtration and assimilation of pollutants in newly constructed stormwater retention and detention ponds. Policy C.7: Reserved2 Policy C.8: The City shall continue to promote the development of passive recreational facilities (e.g., boardwalks) in wetlands, where it can be demonstrated that such facilities will not have adverse impacts on water quality or fish and wildlife attributes. Policy C.9: The City will cooperate with Hillsborough County and the Southwest Florida Water Management District in the development of comprehensive floodplain management regulations for the protection of the natural floodassimilating capacity and fish and wildlife attributes within the 100-year floodplain. Policy C.10: Environmentally Sensitive Area Overlay designation on the FLUM will serve as the conceptual indicator of wetland and 100 year floodplain areas. The precise delineation of wetland areas shall be determined by the Environmental Protection Commission’s delineation of wetlands through site specific studies and field determinations which assess the actual extent of wetlands. If an area designated Environmentally Sensitive Area Overlay on the FLUM is determined to be non-wetland area by the EPC, the FLUM designation shall be only that of the remainder of the parcel(s). A comprehensive plan amendment shall not be required to adjust the FLUM boundaries based upon the above circumstances. (Per DCA Compliance Agreement Case NO. 98-2872GM) Policy C.11: A minimum buffer of 15 feet and an average of 25 feet shall be required for all wetlands, consistent with State of Florida Environmental Resource Permitting (ERP) Rules, Chapter 40D, F.A.C. Page 30 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Policy C.12: Reserved3 Policy C.13: Development which impacts wetlands may be deemed appropriate only as a last resort; where: 1. Reasonable use of the property is otherwise unavailable and/or onsite preservation of a functioning wetland system is deemed unsustainable; 2. The adverse impact is offset by the benefit of the development to the public such that it is reasonable, in the public interest and an acceptable mitigation plan is proposed. This determination shall be made by Plant City and/or the Environmental Protection Commission. Policy C.14: The development review process, part of a comprehensive program for the protection of wetlands, shall make every effort to maintain natural undisturbed wetlands by way of a sequential review process that first evaluates all means of avoiding wetland impacts in regard to a particular project; if necessary, secondly, evaluates and requires measures to minimize wetland impacts; and if necessary, thirdly, evaluates and requires the mitigation of wetland impacts. Policy C.15: Plant City shall encourage clustering to preserve open space to protect floodplains. Policy C.16: Plant City shall restrict filling low lying areas as a means of meeting minimum flood elevations. SOIL RESOURCES Issue: With few exceptions, the soils of the City of Plant City can generally be characterized as poorly drained fine sands, which are relatively nutrient poor. Because there is minimal topographic relief in the City, natural erosion has not been a problem in the past. However, temporary soil erosion during Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 31 land clearing for development often results in localized when best management practices and erosion control followed. In utilizing soils for development activities, imperative to ensure consideration of soil suitability for a to avoid depletion of valuable soil resources. erosional problems measures are not proper planning is given land use, and Objective D: The City recommends conservation of valuable soil resources and shall ensure that soils are utilized in a manner best suited to their particular capabilities, which will be carried out in part by implementing the following policies and practices. Policy D.1: During the land development review process, the City shall recommend the use of soils in accordance with the soil suitabilities identified by the U.S.D.A. Natural Resources Conservation Service (NRCS). Prior to the commitment of resources for potential development and land use activities, actual determination of suitabilities may be required on a site-by-site basis, to allow for the possibility of special exceptions in which proper modification of the natural soil can take place to reduce the limitation for development. Policy D.2: The City, in cooperation with the U.S.D.A. Natural Resources Conservation Service (NRCS), shall recommend that topsoil best management practices be observed during all land alteration activities. To the greatest degree practicable, erosional soil loss due to construction activities shall be minimized. Policy D.3: During the land use planning and development review processes, the City shall evaluate and utilize, where appropriate soil capability analyses for flood hazard, stability, permeability, and other relevant soil characteristics when planning for and permitting new development. Page 32 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge HAZARDOUS MATERIAL Issue: There are small quantity generators of hazardous materials, which include dry cleaners, automobile service stations, print shops, and other commercial facilities, located in the City of Plant City. The Environmental Protection Commission of Hillsborough County is charged with the inventory of businesses dealing with hazardous materials, as well as with the enforcement of a variety of state and federal regulations and programs, in conjunction with their air and water quality protection responsibilities. Local fire departments are also active in hazardous materials emergency programs. Objectives and policies addressing hazardous materials and waste issues are contained in the Public Facilities Element, Solid Waste Sub-Element. Objective E: Reserved FLORA AND FAUNA (PLANTS AND ANIMALS) Issue: Due to its subtropical climate and variable hydrology and geology, the City of Plant City supports a wide variety of plant and animal species. However, the rapidly growing human population and its associated urbanization has resulted in a substantial loss of natural wildlife habitat, especially in the developed portions of the City, while the cumulative impacts of development continue to divide and isolate large contiguous natural areas. As a result of habitat destruction and alteration, the natural populations of many wildlife species have declined dramatically. Currently, the following types of environmentally sensitive areas are protected in the City of Plant City: Conservation Areas, which include freshwater marshes, wet prairies, sand pine scrub, hardwood swamps, cypress swamps, natural shorelines, and Class III Waters; and Preservation Areas, which include Class I Waters and critical habitat (according to the Federal Endangered Species Act) for threatened or endangered species and species of special concern. Other areas which provide significant or essential wildlife habitat, as defined in this Plan, should also be included as environmentally sensitive areas. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 33 Furthermore, a comprehensive wildlife protection and management program is needed to inventory populations of threatened or endangered species and species of special concern, and significant and essential wildlife habitat for potential public purchase and/or improved public and private management. Because the provision of habitat for wildlife is the most important factor associated with wildlife conservation, the future of the City’s wildlife will depend heavily on habitat maintained by private land-owners. Public education and incentives for maintaining private lands for wildlife benefits are needed. The Florida Fish and Wildlife Conservation Commission (FWC), in coordination with the U. S. Fish and Wildlife Service (FWS) and various state and local entities, has jurisdiction and authority to manage listed and non-listed species and their habitats. Objective F: The City shall protect and conserve significant wildlife habitat and shall ensure a no net loss of essential wildlife habitat. Policy F.1: The City will assist any established local agency in developing and implementing a county-wide wildlife protection and management program. Policy F.2: The City will work with Hillsborough County and the Florida Fish and Wildlife Conservation Commission (FWC) in the identification and mapping of natural plant communities determined to provide significant wildlife habitat in or around the City. FWC maps provide a basis for this effort. Areas of significant wildlife habitat shall be indicated as environmentally sensitive area lands on the Future Land Use Plan Map and/or map overlay. Policy F.3: The City will participate as requested with the Florida Fish and Wildlife Conservation Commission (FWC) in the identification, mapping, protection and restoration of areas of essential wildlife habitat in and around the Plant City environs. Policy F.4: Reserved4 Page 34 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Policy F.5: The City will assist toward implementation of a comprehensive program to conserve and protect significant wildlife habitat from development activities by modifying and amending existing land development regulations and performance standards. The program may include, but not be limited to, the following: • • • • • • • Transfer of development rights; Clustering and buffer requirements; Conservation easements; Post-acquisition disposition mechanisms (e.g., lease back options); Fee simple purchase; Land or mitigation banking; and Tax incentives. Policy F.6: The City shall restrict development activities that adversely affect areas identified and mapped as significant or essential wildlife habitat, by means including, but not limited to, the Florida Fish and Wildlife Conservation Commission (FWC) map series. Where development activities are proposed in such areas, the City shall require site-specific wildlife surveys and other field documentation, as needed, to assess potential impacts and include recommendations of the FWC as conditions of development. Policy F.7: During the land use planning and development review processes, the City shall consider the effects of development on significant wildlife habitat, to protect important wildlife corridors from fragmentation. The City may require the preservation of wildlife corridors within developments to ensure regional species viability and diversity. Objective G: Existing populations of threatened and endangered species and species of special concern occurring in the City shall be maintained. Where feasible, the abundance and distribution of populations of such species shall be increased. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 35 Policy G.1: The City will recommend consultation with, and will consider the recommendations of, the Florida Fish and Wildlife Conservation Commission (FWC) in determining the issuance of land development approvals that would impact upon threatened and endangered species or species of special concern and their essential habitats. Policy G.2: The City shall assist appropriate agencies in local implementation of specific management and recovery strategies for key listed species, as they are developed by the Florida Fish and Wildlife Conservation Commission (FWC) and the U. S. Fish and Wildlife Service. Proper management techniques for key species (e.g., wood stork) shall be utilized to ensure the overall protection of essential habitat types upon which numerous other threatened and endangered species or species of special concern are dependent. Policy G.3: The City will cooperate with the U. S. Fish and Wildlife Service (FWS), the Florida Fish and Wildlife Conservation Commission (FWC) and the Florida Department of Environmental Protection, in a manner to be stipulated, in the implementation of recovery programs for threatened or endangered species or species of special concern, occurring in the City. Policy G.4: The City shall consult, coordinate with, and consider the recommendations of the Florida Department of Environmental Protection, the Florida Fish and Wildlife Conservation Commission (FWC), and the U.S. Fish and Wildlife Service to ensure the protection of wildlife and wildlife habitat. Furthermore, the City shall ensure that development is directed away from areas of protected wildlife and wildlife habitat.5 Objective H: The City will continue to require the protection of Conservation and Preservation areas and the application of environmentally-friendly landscaping principles in new developments and encourages the use of native plants, and also recommends the elimination of exotic nuisance vegetation on public and private properties, which will be achieved in part by implementing the following policy and practices. Page 36 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Policy H.1: The City shall cooperate with the U. S. Department of Agriculture (USDA), FDEP and EPC in eliminating exotic nuisance plant species (e.g., Brazilian pepper) in the City by requiring the elimination of them in appropriate development orders, as identified in the Land Development Code. Policy H.2: The City shall require the use of native plant species in the landscaping of new development projects. Policy H.3: The City shall distribute a recommended native plant listing and other educational materials to increase public awareness of the need to utilize native plant species in the developed landscape. Policy H.4: The City shall require the preservation of significant trees and existing native vegetation in new development projects and continue to protect established Conservation and Preservation Areas. NATURAL PRESERVES Issue: The majority of the environmentally sensitive or ecologically important land in the City of Plant City is currently held in private ownership. The management objectives of many private owners of such lands are not generally oriented towards maximizing the maintenance of abundant fish and wildlife resources. Furthermore, as urbanization advances into undeveloped areas, increasing property values encourage the sale and subdivision of tracts of pristine natural lands for urban development. Public education and awareness of the need to protect pristine natural lands, along with the development of more creative mechanisms for public acquisition, preservation, protection and management of natural preserves and environmental lands, as well as the provision of incentives for maintaining private lands for wildlife benefits, are needed. In addition, a comprehensive wildlife protection and management program is needed to inventory populations of threatened and endangered species and species of special concern, and to identify significant and essential wildlife habitats for public purchase and/or improved public and private management. The City also needs to promote the need for and continuation of the County’s Environmental Lands Acquisition and Protection Program (ELAPP) to continue to ensure the acquisition and/or protection of truly significant natural areas of importance to the City. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 37 Objective I: The City will ensure the proper protection and management of natural preserve areas for provision of wildlife habitat and other public benefits, in part by facilitating the development of management plans for natural preserves of importance to the City, and in part by implementing the following policy and practices. Policy I.1: The City supports the continued funding of the Environmental Lands Acquisition and Protection Program (ELAPP) through periodic county-wide referendum. Policy I.2: Reserved6 Policy I.3: The City will monitor and consider utilization of any comprehensive land acquisition and protection study that identifies environmental protection alternatives to fee simple purchase and shall promote the use of appropriate alternatives. The alternatives may include, but not be limited to, conservation easements, transfer of development rights, and long-term leases. The results of the study should be used to protect lands through the use of appropriate land development regulations and other programs. Policy I.4: The City shall continue to support public acquisition of natural preserves under federal, state, regional and local programs including, but not limited to, the Conservation and Recreation Lands (CARL), Save-Our-Rivers (SOR) and Environmental Lands Acquisition and Protection Program (ELAPP) programs. Policy I.5: The City shall cooperate in the management of natural resources on publicly-owned lands with the U. S. Fish and Wildlife Service, the Florida Fish and Wildlife Conservation Commission, the Florida Department of Environmental Protection, and the Southwest Florida Water Management District, and Page 38 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Hillsborough County as determined in the various management plans for those public lands. Policy I.6: The City shall promote the multiple use of publicly-owned natural preserves, where appropriate, to provide for passive recreation, wildlife habitat, watershed protection, erosion control, maintenance or enhancement of water quality, aquifer recharge protection, or other such natural functions. Policy I.7: The City shall discourage the approval of more intense land uses on ecologically valuable lands which have qualified for acquisition by state, federal, regional, or local land management agencies. Policy I.8: Through the land use planning process, the City shall restrict incompatible development activities adjacent to publicly-owned or managed natural preserves. LAND USE Issue: In past decades, land use decisions were based primarily upon socioeconomic and demographic factors, with little consideration given to preserving or conserving the natural attributes of the land. As a result, urban land uses were often allowed to replace or permanently alter environmentally sensitive lands and natural systems. With a better understanding of the ecological impacts of land uses, it has become clear that the natural carrying capacity of the land must be carefully considered in land use decisions if the natural attributes and functions of the environment are to be maintained for future generations. Plant City shall appropriately preserve or conserve valuable natural resources while allowing for orderly economic growth and development. Objective J: The City shall continue to regulate land uses in order to ensure the protection of the attributes, functions and amenities of the natural environment, and the City’s natural heritage, under all projected growth scenarios. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 39 Policy J.1: The City shall cooperate with the Southwest Florida Water Management District and the Hillsborough County Environmental Protection Commission in an effort to evaluate existing scientific studies with the objective of scientifically determining environmentally-safe and economically-viable construction setback and buffer distances from wetlands, floodplains and water bodies. The City shall use the results of this evaluation to consider the amendment of the City’s Zoning Code and other appropriate land development regulations, if such setbacks and buffer distances are determined to be warranted. Policy J.2: The City shall continue to implement a comprehensive program to protect environmentally sensitive lands within the City, including conditions that developments that include environmentally sensitive lands and/or essential wildlife habitat use the cluster concept to move development activity away from such areas, and to provide adequate buffers and open space as an amenity to the development, along with other techniques for protecting the City’s natural heritage. Policy J.3: In the development review process, the City shall promote the preservation of representative examples of upland native plant communities through appropriate restrictions and requirements in the land development regulations. Policy J.4: The City may consider a “Plant City Quality Development” review process, which would provide incentives, such as reasonable increases in densities, for developments that undergo planned unit development review, and for which minimal adverse impacts on the natural environment are proposed. Policy J.5: The City should assess and require mitigation for the cumulative adverse impacts of small developments (Sub-Development of Regional Impact Scales) on the natural environment. Policy J.6: The City shall continue to encourage infilling and growth within identified and environmentally acceptable “activity centers” and shall continue to discourage urban sprawl, through its land use planning and development regulation processes. Page 40 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Policy J.7: The City may, with technical assistance from the SWFWMD or other agencies, adopt appropriate modifications to current land development regulations that reduce the destruction of natural upland vegetation by filling, and maintain natural drainage patterns and water table levels. Policy J.8: The City may consider reducing densities and clustering development intensity away from environmentally sensitive areas and resource protection areas in order to protect these areas. Objective K: The City shall identify, map, and develop special protective measures for any environmentally sensitive Resource Protection Areas identified in the City. Policy K.1: The City shall amend or adopt new site specific land use regulations and performance standards for development proposed within or adjacent to the following Resource Protection Areas: • Significant and essential wildlife habitat; • Areas of high aquifer recharge/contamination potential; • Public potable water wellfields and their cones of influence. LAND EXCAVATIONS Issue: The demand for fill material in the City of Plant City has resulted in a proliferation of land excavation projects, especially in outlying rural areas. Land excavation projects that are not regulated often result in local surface water quality and groundwater drawdowns. In addition, land excavation areas are often left as non-productive open water bodies, with little or no fish and wildlife habitat value. In addition, land excavations must be located and operated Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 41 in a manner that minimizes negative impacts on surrounding property. Objective L: The City shall regulate land excavation activities to ensure effective reclamation and productive reuse of such areas. Policy L.1: The City shall prohibit land excavation activities that adversely impact wetlands or water levels of either surface water or groundwater on surrounding property. GROUNDWATER RESOURCES Issue: The City of Plant City is underlain by a multi-layered freshwater aquifer system which includes the surficial and Floridan aquifer systems. Unregulated urbanization in areas of high contamination potential may, however, pose unacceptable threats to the long-term water quality of the aquifer system. Furthermore, the proliferation of improperly sited, constructed and/or maintained septic tanks, underground storage tanks, sewage percolation ponds, effluent spray irrigation sites, sewage and septage sludge land disposal sites, and other potential sources of groundwater pollution common in urban and suburban areas in Florida, both within and outside the City limits, may pose a significant cumulative threat to the quality of potable groundwater supplies. SWFWMD is responsible, also through delegation from FDEP, for protection of groundwaters throughout the District. For the most part, protecting groundwater is beyond the authority and jurisdiction of the City, which can, however, take certain actions as follows below. EPC has jurisdiction over most discharges to groundwater in Hillsborough County and the City of Plant City, although the FDEP maintains jurisdiction over major discharges, such as deep-well injection. The FDEP has delegated the Underground Storage Tank (UST) and the State Underground Petroleum Environmental Response (SUPER) Act programs to the EPC. Objective M: Under all future growth scenarios, the City shall ensure compliance with state groundwater quality standards, in part by implementing the following policies and practices. Policy M.1: The City supports SWFWMD in its further mapping areas of high aquifer recharge/contamination potential at a level of resolution applicable to future land use planning. When completed, the City will utilize the high resolution Page 42 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge mapping of such areas for future land use planning and development review purposes. Policy M.2: Until such time as areas of high aquifer recharge/contamination potential are precisely mapped, the City shall consider the best available hydrogeological information (e.g., SWFWMD DRASTIC maps, etc.), and may require the collection of site-specific hydrogeologic data, such as soils borings and head gradients between the upper aquifers, when assessing the impacts of proposed land use changes and developments in areas of suspected high aquifer recharge/contamination potential. This information should be used in the determination of land use decisions on a case-by-case basis. Policy M.3: The City shall continue to implement and fund investigations and necessary clean-up actions for all groundwater pollution sources for which the City is responsible, to the extent required by law. Policy M.4: As the necessary data becomes available the City will develop a comprehensive set of land use regulations and performance standards for development activities proposed within areas shown by SWFWMD to be of high aquifer recharge/contamination potential, in cooperation with the District. Such regulations and performance standards may include, but not be limited to, control of land use types and densities, impervious surface limitations, and discharge-to-groundwater controls. Policy M.5: Reserved7 Policy M.6: Reserved Policy M.7: The City will cooperate with SWFWMD and TBW in developing site-specific testing and modeling for the mapping of wellfield cones of influence. (See Future Land Use Element for additional policy guidance). Policy M.8: Through the land development review process and the land development code, the City shall restrict development or land alteration activities to ensure that they will not breach the confining layers of the Floridan aquifer. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 43 Policy M.9: Reserved Policy M.10: The City will cooperate with environmental regulatory agencies to ensure compliance with the Underground Storage Tank (UST) program and the State Underground Petroleum Environmental Response (SUPER) Act program, especially in areas of demonstrated high recharge/contamination potential. Policy M.11: The City shall coordinate to ensure that excessive consumptive use of groundwater or excessive drainage does not significantly lower water tables or surface water levels, or reduce base flows. Policy M.12: The City shall not support the reclassification of any groundwater aquifer within City boundaries except to acknowledge conditions that cannot be improved, as necessary to protect the public health, safety or welfare. The City shall, however, support the reclassification of groundwater aquifers to accommodate higher standards where it can be demonstrated that improved water quality conditions will prevail in the future. Policy M.13: The City supports studies to determine the effect of variable impervious surface percentages on groundwater recharge, and to evaluate the effectiveness of alternative engineering techniques that could be used to control increases in evapotranspiration and runoff, and to preserve or enhance recharge. The results of the study may be used to develop scientifically-defensible performance standards for recharge, evapotranspiration and runoff in areas of high aquifer recharge/contamination potential which are subject to future development pressures. Policy M.14: The City may, through the land development review process, require demonstration that post-development recharge volumes will equal pre-development recharge volumes to the Floridan aquifer for developments proposed in areas of high aquifer recharge potential. Page 44 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge WATER CONSERVATION Issue: Potable water is currently supplied to the residents of the City of Plant City from a single source, the City’s public wellfield system, located within City boundaries. The sole supply of water to this source is the rain which falls within the City, Hillsborough and adjacent counties to the north and east, minus losses through evapotranspiration (about 75%) and runoff. This source appears to be adequate to meet all current and near-future demands. A water conservation program should include public education, possible amendment of appropriate building codes, voluntary lawn watering restrictions, consideration of reuse and recycling of water, and analysis of other methods of potable water conservation. Public education will be critical to the success of all future water conservation efforts. Objective N: The City shall meet its potable water demands under all future growth scenarios through the conservation, reuse, and enhancement of groundwater supplies and consideration of alternative sources, and shall prevent environmental degradation due to excessive groundwater withdrawals, in part by implementing the following policies and practices. Policy N.1: The City shall accurately estimate and precisely communicate groundwater and surface water supply and demand projections. The City shall comply with SWFWMD’s “safe yield” groundwater withdrawal limitations as determined through the appropriate application of water budget equations and site specific data. Policy N.2: The City will cooperate in the implementation of the Hillsborough County’s Water Reuse program, which maximizes the use of advanced secondary or tertiary treated sewage effluent for residential and recreational irrigation and other purposes, where such reuse can be demonstrated to be environmentally acceptable, economically feasible, and no threat to public health. Policy N.3: The City shall require the use of the most practical, economically feasible and efficient irrigation methods reasonably available for all new irrigation systems. This policy should not be interpreted to require replacement of existing irrigation systems. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 45 Policy N.4: The City shall require the use of the lowest quality water reasonably and feasibly available, which is safe for public health and the environment and suitable to a given use, in order to reduce the unnecessary use of potable water. The City shall identify sources of lower quality water that can be made available to potable and reclaimed water users in the City. This policy shall be applied with discretion to ensure that those activities for which high quality water is necessary, such as fish farms, crop producers and water bottlers, may continue to use high quality water. Policy N.5: The City shall, in cooperation with the Southwest Florida Water Management District, promote a comprehensive water conservation public education program by distributing available information. Policy N.6: The City shall cooperate with SWFWMD in enforcing water conservation measures and programs by adopting and enforcing the appropriate ordinances. Policy N.7: The City shall cooperate with SWFWMD in the Quality Water Improvement Program (QWIP), which identifies and caps free-flowing abandonded wells. Policy N.8: Reserved8 Policy N.9: The City shall, with assistance from SWFWMD, develop a local comprehensive water conservation program, addressing specific building code requirements for water saving devices, as well as various measures and requirements for reducing unnecessary potable water use and consumption. Policy N.10: The City shall consider implementing an escalating potable water user fee rate scale designed to discourage non-essential uses of potable water. Policy N.11: The City shall, through the land development review process, restrict the substantial lowering of the water table to meet stormwater treatment or storage requirements. Page 46 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Policy N.12: Through the land development review process and land development regulations, the City shall request and promote the use of Florida Friendly Landscaping and low-volume irrigation systems as water conservation measures. Policy N.13: The City will protect water quality by restricting activities and land uses which would adversely affect the quality and quantity of identified water sources used as a source of public water supply. Policy N.14: The City shall, through its land development review process, land development regulations, or other ordinances, require that identified alternative water sources, including identified sources of lower quality water such as domestic and non-domestic wastewater, be collected and made available for use where practicable to meet reclaimed water demands and offset potable water demands of the City’s customers. Policy N.15: Through its land development review process, land development regulations, or other ordinances, the City shall regulate activities that will result in reductions in groundwater recharge within the City. SUSTAINABLE DEVELOPMENT Issue: Key components of the City’s overall commitment to make economical use of public dollars and protect the environment are improving energy conservation and efficiency and engaging in resource efficient sustainable development practices. With rising costs and increasing demands for energy and natural resources, the City will seek to reduce energy use and manage development in a more resource efficient manner. The City can motivate employees, residents and businesses to become more energy efficient and to apply sustainable construction practices. Acting to conserve energy and become resource efficient saves public money and benefits the environment. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 47 Goal 2: The City shall have sufficient and reliable energy available to meet the future needs of residents, businesses and government, and development practices shall be resource efficient. Objective O: Plant City will engage in and promote practices that result in energy conservation and efficiency. Policy O.1: Plant City will continue to offer energy conservation and efficiency information to enable residents, businesses and city employees to reduce electrical loads and demands on the electrical utility system. Policy O.2: The City will continue to enhance employee awareness of energy efficiency through training and periodic notifications. Policy O.3: During the planning and design of new municipal buildings and facilities, and major renovations, the City will evaluate alternative energy systems. Where these systems prove both cost effective during their initial installation and long term maintenance, they will be pursued by Plant City. Based on knowledge gained from this ongoing process, the City will promote alternative energy sources in other public and private development projects within Plant City. Policy O.4: The City will continue to pursue energy-saving options for exterior lighting of City buildings and facilities. Objective P: The City will encourage energy efficient and sustainable development practices. Policy P.1: The City will encourage builders and developers to exceed the minimum requirements for energy efficiency of the Florida Building Code by sharing information on available training, tools or literature on resource efficient development. Page 48 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Policy P.2: The City will explore sponsoring or partnering with organizations such as the Cooperative Extension Service, University of Florida to educate consumers about emerging practices in energy conservation and sustainable development. Policy P.3: The City will explore creating incentives for new homes, developments and commercial buildings to become certified under the U.S. Green Building Council’s “Leadership in Energy and Environmental Design” (LEED) program, the Florida Green Building Coalition (FGBC), or meet similar standards of development. Policy P.4: The City will seek to maintain environmentally beneficial plant life. and increase Objective Q: The City will support the development of and consider use of alternative energy/fuel in order to achieve energy supplies that are secure, sustainable and not harmful to the environment. Policy Q.1: The City will support the adoption of federal, state and local polices that foster domestic production of environmentally safe energy sources. Policy Q.2: The City will seek to diversify its fuel supply and reduce its use of fossil fuels by using alternative energy technologies where feasible. Policy Q.3: The City will investigate the use of alternative energy technology for existing, new and renovated City facilities. Policy Q.4: The City will seek to stimulate economic growth of new business, business expansion and development of technology in alternative energy and fuels. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 49 V. STRATEGIES FOR IMPLEMENTATION The policies of the Conservation and Aquifer Recharge Element provide direction for actions at the local level and guidance for actions by those beyond the City’s jurisdiction. The following sub-sections describe strategies regarding implementation of plan provisons by issue area. While many policies are self-implementing by nature, others require additional steps by either the City or an outside interest. A. AIR QUALITY Air quality is a regional issue. The City's ability to effectuate air quality changes is limited because the City does not have jurisdiction over most aspects of air quality protection. Air quality issues are addressed by many different agencies and groups including: the U. S. Environmental Protection Agency, the Florida Department of Environmental Protection, the Environmental Protection Commission of Hillsborough County, the Hillsborough County Metropolitan Planning Organization and the National Weather Service. Each performs separate functions to improve air quality. For example, the Environmental Protection Commission of Hillsborough County (EPC) is responsible for air quality monitoring and enforcing air quality regulations. The City of Plant City's major involvement in improving air quality is largely one of cooperating with these regional, state and federal agencies charged with various responsibilities related to air quality, implementing sound growth management practices, providing technical assistance or lobbying for change. The things the City can do to improve air quality, and policies to that end are included herein. For example, the city can help to reduce vehicle emissions through land use planning efforts that may increase internal trip capture for land development projects; promote increased bus ridership through a variety of means; and promote other types of programs geared toward reduction of peak-hour single-occupancy vehicle trips such as ride sharing, van pooling and flexible work hours. B. SURFACE WATER RESOURCES Although the City has only limited surface water resources, there are several things the City does to manage and improve surface water resources. Point and non-point source water pollution can significantly degrade surface water resources. The City’s wastewater treatment plant generates 100% reclaimed water for reuse by industrial, residential and agricultural customers both inside and outside the city limits. Unused reclaimed water meets quality standards for effluent discharge into the eastside canal and finds its way into the Hillsborough River. Page 50 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Stormwater runoff is another major source of pollution to surface water resources. The City requires stormwater treatment that complies with the Southwest Florida Water Management District's standards and the U.S. Environmental Protection Agency’s National Pollutant Discharge Elimination System Permit Requirement. Wetland management has also historically been done at an inter-jurisdictional level because wetlands protection laws are implemented at every level of government. The City's means of implementation is through its land development regulations and development review processes. C. LAND USE The proper management of land and its uses and activities can play a significant role in the long-term conservation of natural resources and the community’s natural heritage. The City has primary responsibility over the use of land and must use the comprehensive planning process and related police powers to maximize the effectiveness of achieving the desires of its citizens in a manner that is cost-effective and equitable. Beyond the land use planning process itself, the primary means to achieve this is through the land development regulation and review processes. Many of the City's land development regulations (LDRs) incorporate consideration of plan policies. The value of the comprehensive planning approach is that it takes a longer-term view of the area’s growth and development, and can identify means of protecting natural resources and special areas in a deliberate manner that incorporates community involvement and equity. For example, land development regulations can require preservation of upland plant communities on a parcel-by parcel basis, but the value of those areas can be greatly increased by ensuring that the synergies achieved by protecting connected or contiguous areas are identified and maximized through the planning process. To take better advantage of these opportunities, the Conservation and Aquifer Recharge Element establishes general city-wide resource protection provisions, addressing air and water quality, soil conservation and protection, and protection of wetlands and wildlife habitat, and calls for development of resource protection strategies for special areas of concern. Properly and conscientiously done, these provisions and strategies can provide a framework within which the city’s natural resources can be managed into the future. With active implementation of the land development regulations and other conservation strategies, in conjunction with the extensive existing network of conservation programs and interests, the city’s natural heritage and significant natural resources base can be enjoyed, maintained and improved into the future. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 51 D. SOIL RESOURCES Conservation of Plant City’s soil resources is important. Because of the city’s minimal topographic relief, natural erosion has not been a major concern. However, during development, soil erosion can become a problem if proper soil management practices and erosion control measures aren’t utilized. The objectives and policies in this section address soil capability analysis in development, subsurface investigations of soil stability, and erosion of soil during development. E. HAZARDOUS MATERIALS AND WASTE See the Public Facilities Element, Solid Waste Sub-Element. F. ECOSYSTEMS MANAGEMENT This section addresses protection, preservation and restoration of ecosystems of importance to the City. Implementation of the provisions of this section recognize that responsibility for some actions rely on the City, generally in coordination with appropriate wildlife protection agencies. The expansion of existing programs will be an opportunity in which the City will enhance its protection of native plant and animal life. G. NATURAL PRESERVES This section addresses the protection and acquisition of natural preserves. The City has a supportive role in fulfilling the provisions of this section. Implemention responsibility is held by federal, state and local regulatory agencies, since the City does not own or manage any natural preserve areas. H. GROUNDWATER RESOURCES The groundwater system is the only source of water for domestic and industrial uses in the city. Major concerns include wellhead protection, contamination of the aquifer and saltwater intrusion into the aquifer. The objectives and policies in this section address groundwater quality and protection through various programs, such as the Underground Storage Tank program. In addition, land use regulations and performance standards address these concerns on a case-by-case basis. Various agencies or departments are responsible for implementing these objectives and policies, including the City Planning and Water Departments, the Environmental Protection Commission of Hillsborough County, the Southwest Florida Water Management District, and the Florida Department of Environmental Protection. Page 52 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge I. WATER CONSERVATION The City’s potable water supply comes solely from the Floridan aquifer. Currently, there is an adequate supply of water for projected needs. However, since future water demands will increase and water supply sources are limited, water conservation should be a primary concern. The objectives and policies in this section address conservation, reuse, and enhancement of potable water supplies, achieved through land use and development regulations (e.g., application of environmentally-friendly landscaping principles), water conservation measures and programs (e.g., escalating user fee rate scale and public education program). Various agencies or departments are responsible for implementing these objectives and policies, including the Plant City Public Utilities Department, Hillsborough County, and the Southwest Florida Water Management District. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 53 VI. SUPPORT DOCUMENTS SUMMARY 1. Environmental Protection Commission of Hillsborough County, 2006. 2006 Air Quality Report. Tampa, FL. Provides air quality statistics for Hillsborough County for 1993-2006. 2. Environmental Protection Commission of Hillsborough County, 2005. The State of the Environment: 2005 Annual Report. Tampa, FL. Describes EPC’s programs, actions, and issues and the state of the environment throughout Hillsborough County. 3. Environmental Protection Commission of Hillsborough County, 2000. Surface Water Quality 1998-2000. Tampa. This document is primarily a compilation and assessment of water quality parameters from the Environmental Protection Commission’s extensive county-wide monitoring network, indicating relative water quality in both fresh and saltwater systems. 4. Environmental Protection Commission of Hillsborough County, 1985. Wetlands Rule, Chapter 1-11, Laws of Florida. Tampa, FL. Describes local wetlands protection program. 5. ESE, 1984. County Government Hazardous Waste Management Assessment for Hillsborough County. Prepared for Hillsborough County and the Tampa Bay Regional Planning Council by Environmental Science and Engineering, Inc. This document is a relatively comprehensive identification of known abandonded dump sites and other potential hazardous waste sites throughout Hillsborough County and an assessment of the degree of threat each poses to water supplies, with a rough estimate of clean-up costs and priorities. 6. Florida Department of Environmental Regulation. FDER Database, 1987. Tampa, Florida. This document contains the pertinent data from FDER's extensive water quality monitoring system. 7. Fernald, E.A., 1984, Water Resources Atlas of Florida, Florida State University. This book is a comprehensive analysis of the water resources of the State, including information on the State's legal framework for water quality protection, a review of the water management districts, etc. 8. Florida Game and Freshwater Fish Commission, 1995. Closing the Gaps in Florida’s Wildlife Habitat Conservation System. Tallahassee, FL. Study provides a comprehensive analysis of the state of Florida’s wildlife protection strategy and provides recommendations for its improvement. Page 54 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge 9. Hillsborough County Parks and Recreation Department, 2005. Environmental Lands Acquisition and Protection Program (ELAPP) Annual Report. Tampa, FL. Includes management plan briefs for lands acquired and managed through the ELAPP. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 55 FIGURE 1: SOILS MAP (Located in Comprehensive Plan Figure/Map Folder) Page 56 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge FIGURE 2: COMMERCIALLY VALUABLE MINERALS (Located in Comprehensive Plan Figure/Map Folder) Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 57 FIGURE 3: MAJOR DRAINAGE BASINS (Located in Comprehensive Plan Figure/Map Folder) Page 58 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge FIGURE 4: 100 YEAR FLOOD PLAIN (Located in Comprehensive Plan Figure/Map Folder) Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 59 FIGURE 5: NATURAL RESOURCES, WETLANDS (Located in Comprehensive Plan Figure/Map Folder) Page 60 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge FIGURE 6: NATURAL SYSTEMS AND LAND USE COVER INVENTORY (Located in Comprehensive Plan Figure/Map Folder) Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 61 FIGURE 7: BIODIVERSITY HOT SPOTS (Located in Comprehensive Plan Figure/Map Folder) Page 62 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge FIGURE 8: CONSERVATION LAND USE AND ELAPP AREAS (Located in Comprehensive Plan Figure/Map Folder) Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 63 FIGURE 9: STRATEGIC HABITAT CONSERVATION AREAS (Located in Comprehensive Plan Figure/Map Folder) Page 64 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge FIGURE 10: POTENTIOMETRIC SURFACE CONTOURS OF THE FLORIDAN AQUIFER (Located in Comprehensive Plan Figure/Map Folder) Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 65 FIGURE 11: REPORTED SINKHOLES (Located in Comprehensive Plan Figure/Map Folder) Page 66 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge FIGURE 12: AREAS OF NATURAL RECHARGE TO THE FLORIDAN AQUIFER (Located in Comprehensive Plan Figure/Map Folder) Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 67 FIGURE 13: AREAS SUSCEPTIBLE TO GROUNDWATER CONTAMINATION (Located in Comprehensive Plan Figure/Map Folder) Page 68 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge FIGURE 14: EXISTING AND PROPOSED WELLS AND WELLFIELDS (Located in Comprehensive Plan Figure/Map Folder) Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 69 FIGURE 15: WELLHEAD RESOURCE PROTECTION (Located in Comprehensive Plan Figure/Map Folder) Page 70 Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge 1 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. 2 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. 3 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. 4 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. 5 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. 6 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. 7 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. 8 ENDNOTE: 2nd Cycle 2012 (Ref: DCA #12-2): PC/CPA 11-04 Conservation and Aquifer Recharge Element. Ord. 28-2012, 9-10-12, EFFECTIVE: October 18, 2012. Comprehensive Plan for the City of Plant City, Conservation and Aquifer Recharge Element Page 71
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