| Waterbody | WBID(s) | Indicators of Pollution | Waterbody | WBID(s) | Indicators of Pollution |
|---|---|---|---|---|---|
| Alligator Creek | 2030 | Fecal Coliform Bacteria | Matheny Creek | 1975B | E. coli Bacteria |
| Big Slough Canal | 1976 | Fecal Coliform Bacteria | Mud Lake Slough | 1958 | Fecal Coliform Bacteria |
| Catfish Creek | 1984A, 1984AA | Fecal Coliform Bacteria | Myakka River | 1877C, 1972A, 1981B, 1991A, 1991B, 1991C | Algal Mats1, Chlorophyll a, Enterococci Bacteria, Dissolved Oxygen2, Bacteria in Shellfish4, Fecal Coliform Bacteria, Nitrogen |
| Clower Creek Estuary | 1975A | E. coli Bacteria, Iron | Myakka River (Upper Segment) | 1877A | E. coli Bacteria, Fecal Coliform Bacteria |
| North Creek (Tidal) | 1984A | Chlorophyll a1, Dissolved Oxygen2, Fecal Coliform Bacteria, Nitrogen | |||
| Cow Pen Slough | 1924 | Macrophytes1 | Ogleby Creek | 1927 | Dissolved Oxygen2, Fecal Coliform Bacteria |
| Curry Creek | 2009B, 2009C | Enterococci Bacteria, Macrophytes1, Iron | Phillippi Creek | 1937, 1947 | E. coli Bacteria, Enterococci Bacteria, Macrophytes1 |
| Dona Bay | 2002 | Chlorophyll a1, Nitrogen | Phillippi Creek Tributaries | 1966 | Nitrogen, E. coli Bacteria, Macrophytes1 |
| Drain to Hudson Bayou | 1953 | E. coli Bacteria, Macrophytes1 | Red Bug Slough | 1971A | E. coli Bacteria |
| Elligraw Bayou | 1975 | Chlorophyll a1, E. coli Bacteria | Roberts Bay Venice | 2018A | Chlorophyll a, Nitrogen |
| Forked Creek | 2039 | Copper, Enterococci Bacteria | Salt Creek Tidal | 1994B | Enterococci Bacteria |
| Hatchett Creek | 2015, 2015A | E. Coli and Enterococci Bacteria | Sarasota Bay | 1968B | Bacteria in Shellfish3 |
| Howard Creek | 1940 | E. coli Bacteria, Iron | South Creek | 1982A | E. coli Bacteria |
| Hudson Bayou Tidal | 1953A | Dissolved Oxygen2, Enterococci Bacteria | Tributary to Gottfried Creek | 2050 | E. coli Bacteria |
| Intracoastal Waterway Venice | 2018B | Chlorophyll a1 | Upper Lemon Bay | 1983A | Fecal Coliform Bacteria, Enterococci Bacteria, Chlorophyll a, Nitrogen |
| Indian Creek | 1943 | E. coli Bacteria, Iron, Phosphorus, Macrophytes1 | Walker Creek | 1936A | E. coli Bacteria |
| Lemon Bay | 1983A1 | Chlorophyll a1, Nitrogen | Whitaker Bayou (Tidal) | 1936 | Chlorophyll a, Nitrogen, Enterococci Bacteria, Dissolved Oxygen2 |
| Lyons Bay Canals | 2002A | Chlorophyll a1 | Woodmere Creek (North / South) | 2042 | E. coli Bacteria |
1 Macrophytes are plants large enough to be seen by the naked eye (i.e., not algae or phytoplankton). Chlorophyll a is a pigment produced by plants. Excessive chlorophyll a, algal mats, and overgrowth of macrophytes are all indicators of nutrient pollution.
2 Low levels of dissolved oxygen have multiple possible causes; insufficient oxygen in the water is detrimental to wildlife.
3 Exceeds bacteria thresholds established by the Florida Dept. of Agriculture and Consumer Services Shellfish Evaluation & Assessment Section (SEAS).
4 Exceeds limit of 21 days of beach advisories issued by the Florida Department of Health during the assessment period.
* The assessment for mercury impairment is complicated. It relies on a combination of mercury detection in fish tissue, atmospheric monitoring, and inferential aquatic modeling (a statistical technique). Much of the mercury in Florida waters comes from elsewhere. The Statewide Mercury TMDL says, "Global anthropogenic emissions of mercury are the source of the vast majority of mercury deposition in Florida. Thus, Florida’s achievement of the TMDL is dependent upon not only out-of-state but out-of-country mercury emission reductions." To learn which waterbodies have fish consumption advisories because of mercury contamination, read "Your Guide to Eating Fish Caught in Florida", published by the Florida Department of Health, or visit the Department's Fish Consumption Advisory Lookup Tool on the web.
