The USGS just came out with a publication on Warm Mineral Springs.
"Discharge, Water Temperature, and Water Quality of Warm Mineral Springs, Sarasota County, Florida: A Retrospective Analysis
By Patty A. Metz
U.S. Department of the Interior
U.S. Geological Survey
Purpose and Scope
The purpose and scope of this report is to provide a summary of retrospective studies (available from published reports and databases) pertaining to the geologic and hydro*logic setting of the region, and the water temperature, discharge, and water chemistry of Warm Mineral Springs. The study area includes Warm Mineral Springs and the Myakka River Basin (fig. 1A). Data were compiled from published sources from various agencies including the Florida Geological Survey, Sarasota County, Southwest Florida Water Management District (SWFWMD), and the U.S. Geological Survey (USGS). Data from the SWFWMD Regional Observa*tion Monitor-Well Program (ROMP), and other wells, were used to assess regional groundwater levels.
The USGS in cooperation with the City of North Port and Sarasota County, Florida, conducted a study to review, sum*marize, and analyze existing data pertaining to Warm Mineral Springs. The retrospective summary addresses (1) the regional hydrologic and geologic setting, (2) anthropogenic effects such as water use, (3) sources of warm water, (4) discharge and water temperature, and (5) geochemistry and water qual*ity. The associated analyses are intended to provide informa*tion to local, regional, and State water-resource professionals to better understand and sustainably manage Warm Mineral Springs."
You can download a copy of the publication at the bottom of the page at:
http://www.warmmineral.com/
Curt Bowen has assembled a good deal of excellent information on the spring, underwater imagery and the like at this website.
He also shot this remarkable video in some particularly outstanding visibility at the spring in 2015.
https://vimeo.com/135162494
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