Tag Archives: salinity

Revised Hydrogeologic Framework of the Floridan Aquifer System 2016-03

Salt water intrusion inland is worse than you think, including the “Apalachicola salinity feature” up to the GA-FL line and east through Lowndes County, with a special additional brackish Valdosta feature. Central north Florida is an island of fresh groundwater surrounded by entire saline Florida coast around from Alabama plus across to Brunswick, GA, then again from Savannah up past Charleston. South of Lakeland, FL the map is all red for saline.

Figure 53. Estimated altitude of the 10,000-milligrams-per-liter (mg/L) total dissolved solids boundary, southeastern United States.
Figure 53. Estimated altitude of the 10,000-milligrams-per-liter (mg/L) total dissolved solids boundary, southeastern United States.

Apparently using the data preliminarily mapped earlier in the Florida Well Salinity Study, geologists from three states connected the dots in Revised Hydrogeologic Framework of the Floridan Aquifer System in Florida and Parts of Georgia, Alabama, and South Carolina, By Continue reading →

Florida Well Salinity Study

Update 2017-05-18: Salt water intrusion inland is worse than you think, including the “Apalachicola salinity feature” up to the GA-FL line and east through Lowndes County, with a special additional brackish Valdosta feature. See Revised Hydrogeologic Framework of the Floridan Aquifer System 2016-03.

Update 2016-02-22: Fixed URLs for DEP files.

Salt water and other solids are coming up in Florida wells far inland from the sea, Sulfate in Status Network Wells (All Aquifers) Modeled Using Inverse Distance Weighting right up to the state line, and it probably doesn’t stop there. The problem is worse on the coasts and in south Florida, but north central Florida is not immune, judging by these preliminary maps by the Florida Department of Environmental Protection. Likely culprits would seem to include overpumping. Continue reading →