Charlotte Harbor

Charlotte Harbor, covering 86,747 acres, is a bay situated in Charlotte County, with the associated WBID(s): 2065A, 2065B, 2065C, 2065D.

Charlotte Harbor is the second-largest estuary in Florida and the largest, deepest and most diverse of the five Charlotte Harbor Aquatic Preserves, encompassing the Gasparilla Sound-Charlotte Harbor Aquatic Preserve. Fresh water from the Peace and Myakka rivers mixes with salt water coming through Boca Grande Pass from the Gulf of Mexico. The Charlotte Harbor Watershed includes Charlotte Harbor as well as the Peace River and the Myakka River basins.

Note that this waterbody is impaired for one or more parameters including Mercury. All recreational marine waters in Florida are impaired for Mercury based on fish tissue assessments and a statewide Total Maximum Daily Load (TMDL) pollutant limit for Mercury has been adopted in response. The largest sources of Mercury are from air pollution generated from local and global power plants.

This waterbody is located within: Charlotte Harbor Basin

View Maps / Data

CHNEP's Comprehensive Conservation and Management Plan (CCMP) identified four action plans: water quality improvement; hydrological restoration; fish, wildlife, and habitat improvement; and public engagement. Click on the interactive maps below to view data associated with these goals and actions.

Water Quality Snapshot

The Water Quality Snapshot compares the most current water quality data to applicable water quality standards for Chlorophyll a, Phosphorus, Nitrogen, Bacteria, and Dissolved Oxygen to provide a snapshot of how a waterbody is doing. Water quality standards are outlined in Florida Administrative Code 62-302 for fresh/marine waterbodies of different types and uses. A Water Body Identification number (WBID) is an assessment unit that is intended to represent Florida’s waterbodies at the watershed or sub-watershed scale. The assessment units are drainage basins, lakes, lake drainage areas, springs, rivers and streams, segments of rivers and streams, coastal, bay and estuarine waters in Florida.

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