| Abstract: | Peak daily pumpage from the highly permeable, unconfined Biscayne aquifer for public water-supply systems in southeast Florida in 1975 was about 500 million gallons. Another 165 million gallons was withdrawn daily for irrigation. Recharge to the aquifer is primarily by local rainfall. Discharge is by evapotranspiration, canal drainage, coastal seepage, and pumping. Pollutants can enter the aquifer by direct infiltration from land surface or controlled canals, septic-tank and other drainfields, drainage wells, and solid-waste dumps. Most of the pollutants are concentrated in the upper 20 to 30 feet of the aquifer; public supply wells generally range in depth from about 75 to 150 feet. Dilution, dispersion, and adsorption tend to reduce the concentrations. Seasonal heavy rainfall and canal discharge accelerate ground-water circulation, thereby tending to dilute and flush upper zones of the aquifer. The ultimate fate of pollutants in the aquifer is the ocean, although some may be adsorbed by the aquifer materials en route to the ocean, and some are diverted to pumping wells. (Woodard-USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 28055 |
| Citation Author: | Klein, Howard; Hull, John E. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | v, 52 p. :ill., maps ;26 cm. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 78-107 |
| Citation Search Results Text: | Biscayne aquifer, southeast Florida; 1978; WRI; 78-107; Klein, Howard; Hull, John E. |
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| Citation Year: | 1978 |
| Type: | citation/reference |
| Text: | Biscayne aquifer, southeast Florida; 1978; WRI; 78-107; Klein, Howard; Hull, John E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://sofia.usgs.gov/publications/wri/78-107/index.html |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
