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Ground-water resources of the lower Apalachicola-Chattahoochee-Flint River basin in parts of Alabama, Florida, and Georgia — Subarea 4 of the Apalachicola-Chattahoochee-Flint and Alabama-Coosa-Tallapoosa River basins
Lynn J. Torak, Robin John McDowell
1996, Open-File Report 95-321
The study area is underlain by Coastal Plain sediments of pre-Cretaceous to Quaternary age consisting of alternating units of sand, clay, sandstone, dolomite, and limestone that gradually thicken and dip gently to the southeast. The Upper Floridan aquifer is composed of an off lapping sequence of clastic and carbonate sediments...
Effectiveness of highway-drainage systems in preventing contamination of ground water by road salt, Route 25, southeastern Massachusetts; description of study area, data collection programs, and methodology
P. E. Church, D.S. Armstrong, G.E. Granato, V.J. Stone, K.P. Smith, P.L. Provencher
1996, Open-File Report 96-317
Four test sites along a 7-mile section of Route 25 in southeastern Massachusetts, each representing a specific highway-drainage system, were instrumented to determine the effectiveness of the drainage systems in preventing contamination of ground water by road salt. One of the systems discharges highway runoff onsite through local drainpipes. The...
Digital geologic map of Woodward Quadrangle, south-central Oklahoma
J. R. Cederstrand
1996, Open-File Report 96-381
This data set consists of digital data and accompanying documentation for the surficial geology of the 1:250,000-scale Woodward quadrangle. The original data are from the Geologic Map, sheet 1 of 4, included in the Oklahoma Geological Survey publication, Reconnaissance of the water resources of the Woodward quadrangle, northwestern Oklahoma, Hydrologic...
Effects of land use on water quality of the Fountain Creek alluvial aquifer, east-central Colorado
Daniel T. Chafin
1996, Water Supply Paper 2381-D
Water-quality data were collected from the Fountain Creek alluvial aquifer in 1988 and 1989 as part of the Toxic-Waste Ground-Water Contamination Program. These data indicate that dissolved solids, most major ions, fluoride, ammonium, boron, lithium, selenium, and strontium were more concentrated in the agricultural land-use area than in the upgradient...
Statistical summaries of ground-water level data collected in the Suwannee River Water Management District, 1948 to 1994
J.J. Collins, L.D. Freeman
1996, Open-File Report 96-352
Since 1948, ground-water level data have beensystematically collected from selected wells in theSuwannee River Water Management District (SRWMD) by the U.S. Geological Survey (USGS),the SRWMD, and other agencies. Records of waterlevels in the SRWMD (fig. 1), collected by the USGS and SRWMD through 1990, and by the SRWMD from...
Aquatic biology of the San Joaquin-Tulare basins, California; analysis of available data through 1992
Larry R. Brown
1996, Water Supply Paper 2471
Available data through 1992 on aquatic biota in the San Joaquin-Tulare Basins study unit of the National Water-Quality Assessment Program were analyzed to provide a conceptual framework to guide study design. The analysis included information on the biology of fish, aquatic macroinvertebrates, aquatic algae, and concentrations of trace elements and...
Procedures for adjusting regional regression models of urban-runoff quality using local data
Anne B. Hoos, Joy S. Lizarraga
1996, Water Supply Paper 2428
Statistical operations termed model-adjustment procedures can be used to incorporate local data into existing regression modes to improve the predication of urban-runoff quality. Each procedure is a form of regression analysis in which the local data base is used as a calibration data set; the resulting adjusted regression models can...
Water-quality data for nutrients, pesticides, and volatile organic compounds in near-surface aquifers of the midcontinental United States, 1992-1994
D.W. Kolpin, K.E. Zichelle, E.M. Thurman
1996, Open-File Report 96-435
Water samples were collected from 175 wells in 12 Midcontinental States (Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, Wisconsin) from 1992 through 1994 to determine the spatial distribution of nutrients, pesticides, and volatile organic compounds in ground water, and to document the potential effects...