The South Florida Water Management District contains two major Basins - the largest or Okeechobee Basin represents the majority of the South Florida Water Management with the exception of the area contained within the Big Cypress Basin boundary located on the lower west coast of Florida.

Basins are the USGS defined boundaries imported from the 1:24000 National Hydrography Dataset (NHD). They are defined by a six-digit Hydrologic Unit Code (HUC) in NHD. Basins are the highest level drainage units that fit within the South Florida Water Management District. The next-higher-level, the four-digit Subregion, covers the entire Florida peninsula. The HUC Code is stored in the NHD_HUA_CODE field. The boundary details have been edited to match AHED WATERSHED boundaries. Topology rules are enforced among features of Basin, Subbasin, Watershed, SubWatershed and Rainarea in AHED.

C-139 Basin Permit Application Boundaries. Each Basin is represented by one or multiple parcels owned by different landowners and grouped as farms. The compliance program ensures that landowners are responsible for their proportional share of phosphorus load discharged from the C-139 Basin based upon their proportional share of acreage to the total C-139 Basin acreage.The objectives of this BMP program are as follows:(a) to immediately require initial implementation of a BMP program for reducingand controlling phosphorus discharges from the C-139 Basin (b) to provide a compliance methodology for determining whether additionalmeasures will be required of landowners (c) to establish an inspection and enforcement program to ensure thatphosphorus discharges from the basin do not exceed historic levels, basedupon water quality monitoring data from the period October 1, 1978 toSeptember 30, 1988, in accordance with Chapter 40E-63, F.A.C., AppendixB-2, "C-139 Basin Compliance Methodology", dated October 2001An application packet is created when a permit is applied for. This application packet contains a unique application number, location information such as: Sec/Twp/Rge, project acreage, project land use and location map. This application boundary is digitized into GIS Application Arc Map for the county in which the application is located in. Once the application has been reviewed and issued, the application becomes a permit with a permit number.

This polygon feature class describes the extent and location of boundaries referenced in the Surface Water Management Basin and Related Criteria Chapter 40E-41, Florida Administrative Code (F.A.C.).https://www.flrules.org/gateway/ChapterHome.asp?Chapter=40E-41

Excess Precipitation - Kissimmee Basin, Upper East Coast, Lower East Coast and Lower West Coast Regions / Floridan Aquifer. Protection of ground-water recharge areas against continued intrusion from urban expansion is becoming a primary concern among local governments within south Florida; a region whose population depends almost exclusively on ground water to meet its potable water demands. The Florida Legislature, by enacting various statutes, requires the water management districts to provide recharge area information to local governments in an effort to assist these agencies with the development and subsequent implementation of appropriate water resource policies.As a result, the South Florida Water Management District undertook a project to map recharge (as a consequence of infiltration and leakage) for all of the primary public water supply aquifer systems within its four planning regions.Recharge maps, at a scale of 1:300,000, were compiled for the unconfined Biscayne aquifer (Lower East Coast Planning Region), the unconfined Surficial aquifer system (Lower East Coast, Upper East Coast, and Lower West Coast Planning Regions), the semi-confined lower Tamiami and Sandstone aquifers (Lower West Coast Planning Region), and the semi-confined to confined upper Floridan aquifer (Kissimmee Basin Planning Region). The maps delineate average yearly rates of precipitation recharge or leakage, depending on the type of aquifer system(s) portrayed, as well as excess precipitation estimates (i.e. rainfall minus actual evapotranspiration losses) for each planning region. Recharge rates were determined from data sets extracted from existing regional numerical ground-water flow models representing a ten-year period (1980 through 1990), and standardized to long-term average or “normal” precipitation trends. A geographic information system (GIS) was employed to integrate the various data necessary in producing the final maps.Because of the large scale nature and the assumptions inherent within the data bases employed for completion of this project, the resulting map products are intended to be used as regional ground-water resource management planning aids only, and are not considered applicable for site-specific assessments.

Precipitation Recharge/Discharge Areas: Kissimmee Basin/Floridan, and Lower West Coast/Sandstone-Tamiami. Protection of ground-water recharge areas against continued intrusion from urban expansion is becoming a primary concern among local governments within south Florida; a region whose population depends almost exclusively on ground water to meet its potable water demands. The Florida Legislature, by enacting various statutes, requires the water management districts to provide recharge area information to local governments in an effort to assist these agencies with the development and subsequent implementation of appropriate water resource policies.As a result, the South Florida Water Management District undertook a project to map recharge (as a consequence of infiltration and leakage) for all of the primary public water supply aquifer systems within its four planning regions.Recharge maps, at a scale of 1:300,000, were compiled for the unconfined Biscayne aquifer (Lower East Coast Planning Region), the unconfined Surficial aquifer system (Lower East Coast, Upper East Coast, and Lower West Coast Planning Regions), the semi-confined lower Tamiami and Sandstone aquifers (Lower West Coast Planning Region), and the semi-confined to confined upper Floridan aquifer (Kissimmee Basin Planning Region). The maps delineate average yearly rates of precipitation recharge or leakage, depending on the type of aquifer system(s) portrayed, as well as excess precipitation estimates (i.e. rainfall minus actual evapotranspiration losses) for each planning region. Recharge rates were determined from data sets extracted from existing regional numerical ground-water flow models representing a ten-year period (1980 through 1990), and standardized to long-term average or “normal” precipitation trends. A geographic information system (GIS) was employed to integrate the various data necessary in producing the final maps.Because of the large scale nature and the assumptions inherent within the data bases employed for completion of this project, the resulting map products are intended to be used as regional ground-water resource management planning aids only, and are not considered applicable for site-specific assessments.

Current seagrass distribution and species composition in Florida Bay reflect decades of human impact on the hydrology of the Everglades and Florida Bay. Consequently, one widely accepted goal of the Comprehensive Everglades Restoration Plan (CERP) is the reestablishment of more natural seagrass distribution patterns in Florida Bay. Anecdotal observations indicate that, as a consequence of lower, and fluctuating salinity in the past, seagrass distribution was less continuous along the northern portion of Florida Bay and turtle grass was much less abundant. Seagrass scientists and water managers anticipate that restoration of more normal water flow patterns through the Everglades will lower salinities in northern Florida Bay causing shifts in seagrass spatial patterns and species composition. A map of the current location and patterns of submersed aquatic vegetation (SAV) is needed as a baseline before water flow patterns are altered as planned in the CERP. The South Florida Water Management District (SFWMD) and Florida Fish and Wildlife Conservation Commission (FWC) developed a plan to begin mapping the SAV in Florida Bay in 2003 and perform landscape metrics analyses on several study areas. This two-pronged project will result in products that will be useful to a variety of researchers and managers as a view of the current status of SAV as well as a tool in assessing temporal changes in Florida Bay SAV. The overall goals of this project are to 1) assess current seagrass distribution, abundance, and spatial patterns in Florida Bay and 2) provide current benchmarks against which the effects of hydrologic restoration activities can be measured. To those ends, this project has two principal objectives: 1. Construct a map of seagrass distribution from 1:24000 scale, natural color aerial photography flown in 2003; and 2. Develop and test a series of spatial metrics for use in measuring historic and future patterns in seagrass distribution and patchiness.

Current seagrass distribution and species composition in Florida Bay reflect decades of human impact on the hydrology of the Everglades and Florida Bay. Consequently, one widely accepted goal of the Comprehensive Everglades Restoration Plan (CERP) is the reestablishment of more natural seagrass distribution patterns in Florida Bay. Anecdotal observations indicate that, as a consequence of lower, and fluctuating salinity in the past, seagrass distribution was less continuous along the northern portion of Florida Bay and turtle grass was much less abundant. Seagrass scientists and water managers anticipate that restoration of more normal water flow patterns through the Everglades will lower salinities in northern Florida Bay causing shifts in seagrass spatial patterns and species composition. A map of the current location and patterns of submersed aquatic vegetation (SAV) is needed as a baseline before water flow patterns are altered as planned in the CERP. The South Florida Water Management District (SFWMD) and Florida Fish and Wildlife Conservation Commission (FWC) developed a plan to begin mapping the SAV in Florida Bay in 2003 and perform landscape metrics analyses on several study areas. This two-pronged project will result in products that will be useful to a variety of researchers and managers as a view of the current status of SAV as well as a tool in assessing temporal changes in Florida Bay SAV. The overall goals of this project are to 1) assess current seagrass distribution, abundance, and spatial patterns in Florida Bay and 2) provide current benchmarks against which the effects of hydrologic restoration activities can be measured. To those ends, this project has two principal objectives: 1. Construct a map of seagrass distribution from 1:24000 scale, natural color aerial photography flown in 2003; and 2. Develop and test a series of spatial metrics for use in measuring historic and future patterns in seagrass distribution and patchiness.

This polygon feature class describes the extent and location of boundaries referenced in the Environmental Resource Permits Chapter 40E-4 Florida Administrative Code (F.A.C.).https://www.flrules.org/gateway/ChapterHome.asp?Chapter=40E-4These polygon boundaries represent the cumulative impact basins referenced in section 10.2.8 of ERP Applicant's Handbook Volume I and are intended to aid applicants in conducting cumulative impact assessments and to represent the Regional Watersheds within SFWMD for establishement of Mitigation Bank Service Areas purusant to 373.4136(6), F.S.

description: Lake Okeechobee is located in south Florida and is bounded by the Kissimmee River Basin to the north and Everglades National Park to the south. Lake Okeechobee is the largest lake (1890 km2) in Florida and encompasses a drainage area of over 14,200 km2. The lake provides agricultural water supply, back-up water supply for urban areas, flood protection to adjacent communities, critical bird and fisheries habitats, is part of the Okeechobee Waterway navigation canal, and boating recreation. Over the past 100 years, land use change and population increases have adversely impacted the health of the lake mostly by extreme water level fluctuations and excessive nutrient loading mostly from agricultural activities. High-resolution bathymetric mapping was conducted in 2001 in Lake Okeechobee by the USGS, in cooperation with SFWMD. High-resolution, acoustic bathymetric surveying is a proven method to map sea and lake floor elevations. Survey tracklines were spaced 1000 meters apart and orientated in a north-south direction. Tracklines collected in an east-west orientation (intersecting tracklines) functioned to serve as a cross-check and to assess the relative vertical accuracy of the survey. Ideally, vertical data values at the crossing should be exactly the same. In reality, this is not always the case due to random errors of survey system. Several perimeter survey lines were also collected. Soundings were collected along each trackline at 3-meter spacing. Approximately 1,550 kilometers of survey lines were collected. In shallow areas, data was collected in a minimum of 0.6 meters water depth except where there is potential damage to the bottom environment or the boat/motors was a significant possibility. This report serves as an archive of processed single-beam bathymetry data that were collected in Lake Okeechobee, Florida in 2001. Geographic information system data products include XYZ data, bathymetric contours, USGS quadrangle maps, and associated formal Federal Geographic Data Committee (FGDC) metadata.; abstract: Lake Okeechobee is located in south Florida and is bounded by the Kissimmee River Basin to the north and Everglades National Park to the south. Lake Okeechobee is the largest lake (1890 km2) in Florida and encompasses a drainage area of over 14,200 km2. The lake provides agricultural water supply, back-up water supply for urban areas, flood protection to adjacent communities, critical bird and fisheries habitats, is part of the Okeechobee Waterway navigation canal, and boating recreation. Over the past 100 years, land use change and population increases have adversely impacted the health of the lake mostly by extreme water level fluctuations and excessive nutrient loading mostly from agricultural activities. High-resolution bathymetric mapping was conducted in 2001 in Lake Okeechobee by the USGS, in cooperation with SFWMD. High-resolution, acoustic bathymetric surveying is a proven method to map sea and lake floor elevations. Survey tracklines were spaced 1000 meters apart and orientated in a north-south direction. Tracklines collected in an east-west orientation (intersecting tracklines) functioned to serve as a cross-check and to assess the relative vertical accuracy of the survey. Ideally, vertical data values at the crossing should be exactly the same. In reality, this is not always the case due to random errors of survey system. Several perimeter survey lines were also collected. Soundings were collected along each trackline at 3-meter spacing. Approximately 1,550 kilometers of survey lines were collected. In shallow areas, data was collected in a minimum of 0.6 meters water depth except where there is potential damage to the bottom environment or the boat/motors was a significant possibility. This report serves as an archive of processed single-beam bathymetry data that were collected in Lake Okeechobee, Florida in 2001. Geographic information system data products include XYZ data, bathymetric contours, USGS quadrangle maps, and associated formal Federal Geographic Data Committee (FGDC) metadata.

This is a continuation of a part of the Monitoring and Assessment Plan (MAP), to provide a long-term program for monitoring submerged aquatic vegetation (SAV) in the Caloosahatchee Estuary while examining the effects of variation in salinity. The premise is that RECOVER will ultimately determine if the restoration of beneficial patterns of freshwater inflow, salinity and water quality to the Caloosahatchee Estuary will improve the spatial and structural characteristics of SAV communities.

This long-term monitoring network has been successful in providing the start of a baseline dataset of existing SAV beds in the Caloosahatchee River and Estuary. A five-year continuation of the SAV Monitoring Network in the Caloosahatchee is recommended to ensure that an accurate evaluation is made of the effects of the C-43 Basin project storage facilities

During the next five years of this project, additional data will be collected to understand and predict the effect of restoration activities influencing hydrologic changes and freshwater releases as the result of the implementation of the C-43 Basin project.

This polygon feature class describes the extent and location of boundaries referenced in the Works of the District Basins Chapter 40E-61 Florida Administrative Code (F.A.C.)https://www.flrules.org/gateway/ChapterHome.asp?Chapter=40E-61The dataset provides a common reference for linework and polygon areas associated with the Works of the District Basins of the Lake Okeechobee Watershed including priority basins and their priority.https://apps.sfwmd.gov/sfwmd/gsdocs/TPubs/Basin_Boundaries_for_WOD_within_the_LakeO_Basin.pdf The Rule Chapter 40E-61 for the Works of the District Basins defines the Basins and Sub-Basins Boundaries as in Rule 40E-61.023: (1) The Lake Okeechobee Drainage Basin is generally described as: (a) The five pools of the lower Kissimmee River floodplain, that extend from structure S-65 on the south shore of Lake Kissimmee south to structure S-65E, including the S-154 basin. (b) Taylor Creek/Nubbin Slough, S-153 and S-135 Basins that drain into the Lake from the northeast. (c) St. Lucie Canal that is tributary to the Lake during certain times of the year. (d) The Everglades Agricultural Area (EAA) including: 1. Sub-basins that are presently pumped into the Lake – South Florida Conservancy, Closter Farms, S-236 and S-4 sub-basins and three Chapter 298 special drainage districts (East Beach Water Control District, East Shore Drainage District, South Shore District); 2. The S-2 and S-3 sub-basins that can be pumped into the lake only during flood or emergency water supply conditions. (e) Indian Prairie/Harney Pond area including Lake Istokpoga, C-40, C-41, C-41A, L-48, L-49, and S-84 basins that drain into the lake from the northwest. (f) Fisheating Creek basin that drains into the lake along the western shore. (g) All other basins, including a number of basins that discharge directly into the lake; S-127, S-129, S-133, S-131 and L-50 basins and several smaller drainage basins. (2) The sub-basins in the Lake Okeechobee Drainage Basin are depicted on figures and legally described in “Appendix 1” to Rule 40E-61, entitled “Basin Boundaries for Works of the District Within the Lake Okeechobee Basin,” which is published by reference and incorporated into this chapter. Copies are available from the District upon request. Specific Authority 373.044, 373.113 FS. Law Implemented 373.085, 373.086, 373.451, 373.453, 373.4595 FS. History–New 11-1-89

This polygon feature class describes the extent and location of boundaries referenced in the Water Shortage Plan Chapter 40E-21, Florida Administrative Code (F.A.C.) including Water Shortage Plan Regions, Water Use Basins, and restricted allocation areas for the Lake Okeechobee Service Area (LOSA). Water Use Basins within the LOSA boundary are identified by as waterbody type "Restricted Allocation". These basins are the same as those in the Applicant's Handbook for Water Use Section 3.2.1F Figure 3-3, and do not include the Brighton and Seminole Reservations. Water Use Basins are subdivided by County to allow mapping and idenfication by County.https://www.flrules.org/gateway/ChapterHome.asp?Chapter=40E-21This feature class does include overlapping areas between the Caloosahatchee River and Fakahatchee North Water Use Basins as legally described in Chapter 40E-21.