These TMDLs address certain nutrient impairments in the Aucilla River Basin, Lower St. Johns River Basin, and Ocklawaha River Basin. Specifically, the nutrient TMDL rules being proposed for adoption are for the Wacissa River (WBID 3424) and Wacissa Springs (3424Z), Crescent Lake (2606B), Lochloosa Lake (WBID 2738A), Cross Creek (WBID 2754), and Lake Roberts (2872A). The Wacissa River and Wacissa Springs waterbodies were verified for nutrient impairments by nutrients because elevated concentrations of nitrate contributed to an imbalance of flora caused by algal smothering in the spring run; Lake Roberts and Crescent Lake waterbodies were verified for nutrient impairments based on elevated annual average of Trophic State Index (TSI); Lochloosa Lake and Cross Creek were verified for nutrient impairments due to elevated chlorophyll a concentrations, using the methodology established in Chapter 62-303, F.A.C., Identification of Impaired Surface Waters. This rulemaking has been given an OGC case number 16-1492 for rule 62-304.406; 16-1493 for rule 62-304.415 and 16-1491 for rule 62-304.500.