Legend (Hydrogeology/ChlorideConcentrationControlPoints)

Chloride Concentrations (2024) (80) 0 - 250 250 - 500 500 - 1,000 1,000 - 20,500 Chloride Concentrations (2022) - Miami-Dade (USGS) (85) 0 - 250 250 - 500 500 - 1,000 1,000 - 10,200 Chloride Concentrations (2019) (90) 0 - 250 250 - 500 500 - 1,000 1,000 - 22,200 Chloride Concentrations (2014) (95) 0 - 250 250 - 500 500 - 1,000 1,000 - 21,728 Chloride Concentrations (2009) (100) 0 - 250 251 - 500 501 - 1,000 1,001 - 16,663