Data and tools

Water quality monitoring data and reports

Protecting and restoring water quality is a core mission of the St. Johns River Water Management District. A key component of this work is water quality monitoring and reporting. Monitoring provides a wealth of information that enables the district to make resource decisions based on accurate and timely information. In addition, residents can use the information to acquire a basic knowledge of groundwater, springs and water bodies in which they have an interest. The water quality monitoring program is staffed and managed by the Bureau of Water Resource Information.

The water quality monitoring network at the district was initially designed and implemented in the early 1980s and has since been improved and expanded. The current network is comprised of nearly 400 surface water sampling stations located on rivers, streams, lakes, canals, and estuaries, 23 spring stations, and more than 450 groundwater stations throughout the district’s 18-county service area. Stations are sampled for a variety of water quality parameters, including nutrients, major ions and physical measurements, and water quality samples are analyzed using U.S. Environmental Protection Agency (EPA) methods at the district’s laboratory or at various contract labs. In addition, the district maintains more than 20 continuous water quality stations in freshwater, springs and estuaries, collecting real-time water quality data to support district projects.


All data is considered provisional and the district is not liable for any use or misuse of this data. The district reserves the right to make changes in the stored data without notice.

If you have questions concerning this data, please contact the Bureau of Water Resource Information at 800-451‑7106, or by email at