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Chemical quality of ground water in Fairfax County, Virginia
J. D. Larson
1978, Open-File Report 78-268
Two maps portray the chemical quality of ground water in Fairfax County, Virginia. One map shows dissolved-solids concentration and chemical analyses diagrams. The other indicates hardness and areas of marginal water quality. Three tables of chemical analysis representing the three distinct rock types in the county are presented also. (Woodard-USGS)...
Potentiometric surface of the Floridan Aquifer, Southwest Florida Water Management District and adjacent areas, September 1978
R. M. Wolansky, L. R. Mills, W. M. Woodham, C. P. Laughlin
1978, Open-File Report 78-1035
A September 1978 potentiometric-surface map depicts the annual high water-level period of the Floridan aquifer in the Southwest Florida Management District. Potentiometric levels increased 10 to 25 feet between May 1978 and September 1978, in the citrus and farming sections of southern Hillsborough, northern Hardee, southwestern Polk and Manatee Counties....