The proposed rules establish numeric nutrient criteria (NNC) for total nitrogen, total phosphorus, and chlorophyll a in individual estuary segments for the following estuaries: Loxahatchee River, Lake Worth Lagoon, Halifax River, Guana River/Tolomato River/Matanzas River (GTM), Nassau River, Suwannee River, Waccasassa River, Withlacoochee River, and Springs Coast (Crystal River to Anclote River). In addition, NNC for remote sensed chlorophyll a are established for coastal offshore waters that do not have chlorophyll a criteria derived from field-collected water quality measurements.