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Page 4902, results 122526 - 122550

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Proposed observation-well network and ground-water level program for North Carolina
M. D. Winner Jr.
1981, Open-File Report 81-544
An initial system of 223 observation wells is proposed for monitoring ground-water levels in North Carolina. These wells are suggested to replace and upgrade nearly 650 observation wells currently measured in separate State and Federal programs, and are arranged in four groups or networks each having specific objectives. These groups...
Water resources data for Hawaii and other Pacific areas, water year 1980: Volume 1. Hawaii
Water Resources Division, U.S. Geological Survey
1981, Water Data Report HI-80-1
Volume 1 of water resources data for the 1980 water year for Hawaii and other Pacific Areas consist of records of stage, discharge, and water quality of streams; and water levels and water quality in wells and springs. This report contains discharge records for 109 gaging stations; water quality for...
Map showing how the potentiometric surface of the Magothy Aquifer of September 1979 differed from the potentiometric surface of September 1977 in southern Maryland
Frederick K. Mack, J. C. Wheeler, Stephen E. Curtin
1981, Open-File Report 81-632
This map is based on the differences between two sets of water-level measurements made in 63 observation wells. One set was made in 1977, a relatively dry year, and the other set was made in 1979, a relatively wet year. The map shows that the potentiometric surface in 1979, in...
Determination of pentachlorophenol in water and aquifer sediments by high-performance liquid chromatography
D.F. Goerlitz
1981, Open-File Report 82-124
Methods for the determination of pentachlorophenol (PCP) in water and aquifer sediments are presented. Reverse-phase high-performance liquid chromotography employing ion suppression and gradient elution is used. PCP can be determined directly in water at a lower limit of detection Of 0.2 micrograms per liter. For extracts of sediment, PCP can...
Water resources data for Tennessee, water year 1981
Water Resources Division, U.S. Geological Survey
1981, Water Data Report TN-81-1
Water resources data for the 1981 water year for Tennessee consist of records of stage, discharge, and water quality of streams and springs; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of wells. This report contains discharge records for 114 gaging stations; stage...