Last week, the U.S. Environmental Protection Agency (EPA) approved the Total Maximum Daily Loads (TMDLs) for total nitrogen and phosphorus for the freshwater segments of the Lower St. Johns River as Site Specific Alternative Criteria (SSAC) pursuant to its numeric nutrient criteria rule.    These were submitted by the DEP in the revised Chapter 62-302 as site specific numeric interpretations of the state’s narrative criteria, published at DEP’s website at

The specific water bodies identified include lake segments above Black Creek, Palmo Creek, Tocio, and Federal Point; and stream segments above Rice Creek, and Dunns Creek (WBIDs 2213I through 2213N) between the Ocklawaha River and the Atlantic Ocean.  The EPA concluded that based on the chemical, physical and biological data presented in the development of the SSAC, the TMDLs “protect healthy. Well balanced biological communities in the waters to which the SSAC apply and are consistent with the CWA and its implementing regulations.” 

For more information, contact Annie Godfrey, EPA Water Quality Standards Section Chief at (404) 562-9967.