Middle St. Johns - Florida Department of Environmental Protection

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Water Quality Assessment Report: Middle St. Johns
• Human-made canals, urban drainage ditches, and other artificial
waterbody segments that are listed only due to exceedances of dissolved
oxygen (DO) criteria; or
• Waterbody segments that were not on the Planning List but were
identified as impaired during Phase 2 of the watershed management
cycle and were included on the Verified List, unless the segment
meets the second high-priority criterion.
• The EPA has also proposed assigning to this category the list of additional
waterbody segments that the agency developed using its own
evaluation methodology, until the Department has had the opportunity
to investigate these waterbodies further.
All segments not designated high or low priority are medium priority,
and are prioritized based on the following factors:
• The presence of Outstanding Florida Waters (OFW);
• The presence of waterbody segments that fail to meet more than one
designated use, i.e., aquatic life, primary contact and recreation, fish
and shellfish consumption, and drinking water and protection of
human health;
• The presence of waterbody segments that exceed an applicable water
quality criterion or alternative threshold with a frequency of greater
than 25 percent at a minimum confidence level of 90 percent;
• The presence of waterbody segments that exceed more than one
applicable water quality criterion; or
• Administrative needs of the TMDL program, including meeting a
TMDL development schedule agreed to with the EPA, basin priorities
related to the Department’s watershed management approach,
and the number of administratively continued permits in the basin.
The Department is adhering to the TMDL schedule established in the
Consent Decree between the EPA and Earthjustice for waters on the 1998
303(d) list that are also identified as impaired under the IWR.
Table 5.1 lists the high-priority waters for TMDL development in the
Middle St. Johns Basin. Figure 5.1 shows the locations of these waters and
their watersheds
Table 5.1: Priorities for TMDL Development in the Middle St. Johns Basin
WBID Waterbody Name TMDL Parameter
2981 Lake Jesup Nutrients, Unionized Ammonia
2081A Lake Jesup Near St. Johns River Nutrients
3014 Crane Strand Drain DO, BOD, Fecal Coliforms, Total Coliforms
3023 Crane Strand Fecal Coliforms, Total Coliforms
3030 Long Branch Iron, Fecal Coliforms, Total Coliforms, DO, BOD