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Ground-water levels in Wyoming, 1980 through September 1989
H.I. Kennedy, S. L. Green
1990, Open-File Report 90-106
Groundwater levels are measured periodically in a network of 92 observation wells in Wyoming, mostly in areas where groundwater is used in large quantities for irrigation or municipal purposes. The program is conducted by the U.S. Geological Survey in cooperation with the Wyoming State Engineer. This report contains hydrographs for...
Ground-water flow in the New Jersey coastal plain
Mary Martin
1990, Open-File Report 87-528
Flow was simulated in 10 aquifers of the New Jersey Coastal Plain using a multilayer finite-difference model for prepumping steady-state conditions and transient conditions from 1896-1981. The highest transmissivity, greater than 10,000 sq ft/day, is in Camden and Gloucester Counties in the Potomac-Raritan-Magothy aquifers; Monmouth and Ocean Counties in the...
Water resources of Codington and Grant counties, South Dakota
D. S. Hansen
1990, Water-Resources Investigations Report 89-4147
The primary sources of surface water in Codington and Grant Counties are Lakes Kampeska and Pelican and numerous potholes in western Codington County. Seasonal variations in streamflow and lake levels are directly related to seasonal variations in precipitation and evapotranspiration. Dissolved-solids concentrations in water from streams and lakes increase as...
QADATA user's manual; an interactive computer program for the retrieval and analysis of the results from the external blind sample quality- assurance project of the U.S. Geological Survey
K.J. Lucey
1990, Open-File Report 90-162
The U.S. Geological Survey conducts an external blind sample quality assurance project for its National Water Quality Laboratory in Denver, Colorado, based on the analysis of reference water samples. Reference samples containing selected inorganic and nutrient constituents are disguised as environmental samples at the Survey 's office in Ocala, Florida,...