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Publication Extents

Not all publications have extents, not all extents are completely accurate
Water-Quality Assessment of Southern Florida - Wastewater Discharges and Runoff
Richard L. Marella
1998, Fact Sheet 032-98
Nearly 800 million gallons per day of treated wastewater was discharged in the Southern Florida National Water-Quality Assessment (NAWQA) study unit in 1990, most to the Atlantic Ocean (44 percent) and to deep, saline aquifers (25 percent). About 9 percent was discharged to fresh surface waters and about 22 percent...
Mount Rainier: Living with perilous beauty
Kevin M. Scott, Edward W. Wolfe, Carolyn L. Driedger
1998, Fact Sheet 065-97
Mount Rainier is an active volcano reaching more than 2.7 miles (14,410 feet) above sea level. Its majestic edifice looms over expanding suburbs in the valleys that lead to nearby Puget Sound. USGS research over the last several decades indicates that Mount Rainier has been the source of many volcanic...
Monitoring the Water Quality of the Nation's Large Rivers: Columbia River Basin NASQAN Program
Valerie J. Kelly, Richard P. Hooper
1998, Fact Sheet 004-98
In 1995, the U.S. Geological Survey's (USGS) National Stream Quality Accounting Network (NASQAN) Program began monitoring the water quality of the Columbia River Basin, applying a basinwide approach in order to understand water quality on a regional scale. A primary objective of the Columbia NASQAN Program is to provide an...
Radon in the ground water of Chester County, Pennsylvania
Ronald A. Sloto, Lisa A. Senior
1998, Fact Sheet 120-98
IntroductionA study of the occurrence and distribution of dissolved radon in the ground water of Chester County was undertaken by the U.S. Geological Survey (USGS) in cooperation with the Chester County Water Resources Authority and the Chester County Health Depart-ment. The results of this study are published in a technical...
Simulating transport of volatile organic compounds in the unsaturated zone using the computer model R-UNSAT
Matthew A. Lahvis, Arthur L. Baehr
1998, Fact Sheet 019-98
Subsurface spills of gasoline and other petroleum products are a common environmental problem throughout the industrialized world. The U.S. Environmental Protection Agency has estimated that 40 percent of the more than 200,000 retail service stations in the United States have had accidental releases of petroleum hydrocarbons to the subsurface (U.S....
Monitoring of Selected Water-Quality Constituents Near the Freshwater/Saline-Water Interface of the Edwards Aquifer, July 1996-December 1997
J.R. Cederberg, Patricia B. Ging, Robert T. Ourso
1998, Fact Sheet 103-98
The Edwards aquifer is the sole source of water for about 1.3 million people in and near San Antonio, Texas, as well as for ranchers and farmers throughout south-central Texas. Because of the demand for this resource, various studies have been conducted to better understand the Edwards aquifer and how...
Laboratory method for analysis of small concentrations of methyl tert-butyl rther and other ether gasoline oxygenates in water
Donna L. Rose, Brooke F. Connor, Sonja R. Abney, Jon W. Raese
1998, Fact Sheet 086-98
This Fact Sheet presents data for analysis of nanogram-per-liter concentrations of methyl tert-butyl ether (MTBE) and three other ether gasoline oxygenates, including methyl tert-pentyl ether (TAME), diisopropyl ether (DIPE), and ethyl tert-butyl ether (ETBE), by purge- and-trap capillary-column gas chromatography. Long-term method detection levels (LT-MDLs) for MTBE, TAME, DIPE, and...
Monitoring the water quality of the Nation's large rivers: Rio Grande NASQAN Program
Dee L. Lurry, David C. Reutter, Frank C. Wells
1998, Fact Sheet 083-98
The U.S. Geological Survey (USGS) has monitored the water quality in the Rio Grande Basin as part of the redesigned National Stream Quality Accounting Network (NASQAN) since 1995 (Hooper and others, 1997). The NASQAN program was designed to characterize the concentrations and transport of sediment and selected chemical constituents found...
Vigilando la Calidad del Agua de los Grandes Rios de la Nacion: El Programa NASQAN del Rio Grande (Rio Bravo del Norte)
Dee L. Lurry, David C. Reutter, Frank C. Wells, M.C. Rivera (translator), A. Munoz
1998, Fact Sheet 083-98
La Oficina del Estudio Geologico de los Estados Unidos (U.S. Geological Survey, 0 USGS) ha monitoreado la calidad del agua de la cuenca del Rio Grande (Rio Bravo del Norte) desde 1995 como parte de la rediseiiada Red Nacional para Contabilizar la Calidad del Agua de los Rios (National Stream...
Front Range Infrastructure Resources Project: water-resources activities
Stanley G. Robson, Janet S. Heiny
1998, Fact Sheet 113-98
Infrastructure, such as roads, buildings, airports, and dams, is built and maintained by use of large quantities of natural resources such as aggregate (sand and gravel), energy, and water. As urban area expand, local sources of these resource are becoming inaccessible (gravel cannot be mined from under a subdivision, for...