Freshwater-Saltwater Interactions along the Atlantic Coast

A Regional Assessment of the Ground-Water Resources Program

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Saltwater Intrusion

Zone of dispersion in the Biscayne aquifer near Miami, Florida

Chloride concentrations in the thick zone of dispersion (shown by the lines of equal chloride concentration) range from that of freshwater containing 16 parts per million to that of sea water containing 19,000 parts per million. (Figure modified from Kohout, F.A., 1964, The flow of fresh water and salt water in the Biscayne aquifer of the Miami area, Florida: U.S. Geological Survey Water-Supply Paper 1613-C, p. 12-32).

Figure 2 -- Ground-water flow patterns in an idealized aquifer

Figure 3 -- Zone of dispersion in the Biscayne aquifer

Figure 4 -- Vertical movement (upconing) at a discharging well

Figure 5 -- Vertical movement of saline water in the Floridan aquifer system

For more Information, Contact
Paul Barlow, Coordinator Atlantic Coastal Zone Assessment U.S. Geological Survey 10 Bearfoot Road Northborough, MA 01532 (508) 490-5070
pbarlow@usgs.gov

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Page Last Modified: Tuesday, 03-Jan-2017 20:47:12 EST