Perdido River and Bay - Florida Department of Environmental ...

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10 Water Quality Status Report: Perdido River and Bay carried out in the basin through close coordination with the efforts of key stakeholders and initiatives such as Escambia County, Florida Department of Health (DOH), and Northwest Florida Water Management District (NWFWMD). Not only do stakeholders in the basin share responsibilities in achieving water quality improvement objectives, they also play a crucial role in providing the Department with important monitoring data and information on management activities. In addition to the Department, other monitoring support is provided by the NWFWMD, DOH, and the volunteer monitoring groups LakeWatch and Bream Fisherman’s Association. During the next few years, further data collection and analysis will be done to establish TMDLs for impaired waters in the Perdido River and Bay Basin, establish the initial allocations of pollutant load reductions needed to meet those TMDLs, and produce a Basin Management Action Plan to reduce the amount of pollutants that cause impairments. These activities depend on the participation of the water management district, local governments, businesses, and other stakeholders. The Department will work with these groups and individuals to undertake or continue reductions in the discharge of pollutants and achieve the established TMDLs for impaired waterbodies. The information in this report is being used to identify waterbodies and parameters for which additional data are needed to verify water quality impairments. Data gathering and monitoring will then focus on these potentially impaired waters. Once these data are reevaluated and reassessed, in summer 2006, the Department will present a list of waters for which impairments have been verified and for which TMDLs will be developed. The Verifi ed List of impaired waters will be adopted by Secretarial Order in accordance with the FWRA. Once adopted, the list will be submitted to the U.S. Environmental Protection Agency for approval as the state’s Section 303(d) list of impaired waters for the basin. Summary of Surface Water Findings The following summarizes, by planning unit, potential impairments by waterbody types and the primary pollutants. Planning units are smaller areas in the basin that provide a more detailed geographic basis for identifying and assessing water quality improvement activities. Figures 3.3 through 3.4 (in Chapter 3) depict the results of this evaluation. Perdido Bay Planning Unit Of the 28 waterbody segments in the Perdido Bay Planning Unit, 13 segments have sufficient data for assessment. Of these, 10 are potentially impaired for at least 1 parameter assessed based on the Impaired Surface Waters Rule (IWR) methodology and 3 meet standards for at least 1 designated use. One segment (waterbody identification number [WBID] 725) did not have sufficient data for evaluation by the IWR, but is included as potentially impaired because it was listed on the 1998 303(d) list.
Water Quality Status Report: Perdido River and Bay 11 The 11 potentially impaired segments in the planning unit, and the parameters of impairment, are as follows: Direct Runoff to Gulf (WBID 1015) Conductance Elevenmile Creek (WBID 489) Biology, conductance, dissolved oxygen (DO), fecal coliforms, total coliforms, turbidity, unionized ammonia, nutrients, total suspended solids (TSS) Tenmile Creek (WBID 489A) Fecal coliforms, total coliforms Eightmile Creek (WBID 624) Biology, DO, fecal coliforms Marcus Creek (WBID 697) DO, fecal coliforms Unnamed Branch (WBID 725) Fecal coliforms Perdido Bay Gulf (WBID 8001) Mercury in fish Perdido Key State Park (WBID 8001A) Mercury in fish Johnson Beach (WBID 8001B) Mercury in fish Big Lagoon State Park (WBID 8001C) Mercury in fish Unnamed Stream (WBID 935) Conductance, DO Perdido River Planning Unit Of the 41 waterbody segments in the Perdido River Planning Unit, 12 segments have sufficient data for assessment. Of these, 8 are potentially impaired for at least 1 parameter assessed based on the IWR methodology and 4 meet standards for at least 1 designated use. Jacks Branch (WBID 291) did not have sufficient data for evaluation using the IWR, but is listed as impaired solely based on its inclusion on the 1998 303(d) list. The nine potentially impaired segments in the planning unit, and the parameters of impairment, are as follows: McDavid Creek (WBID 149) Dry Creek (WBID 290) Jacks Branch (WBID 291) Reedy Branch (WBID 3) Brushy Creek (WBID 4) Perdido River (WBID 462A) Perdido River (WBID 462B) Perdido River (WBID 462C) Rest Area Run (WBID 542) Biology Biology DO, fecal coliforms, turbidity Biology Biology, fecal coliforms, total coliforms, DO, turbidity, TSS Fecal coliforms, DO, nutrients, mercury in fi sh Conductance Mercury in fish Biology, DO, fecal coliforms, total coliforms, turbidity Summary of Ground Water Findings This section summarizes the results of a preliminary assessment of the quality of ground water available for potable supply, the impact of ground water on surface water resources, and Phase 2 assessment priorities in the Perdido Basin. The assessment uses planning units consistent with the
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