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Page 442, results 11026 - 11050

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Pesticide movement in soils; a comparison of no-tillage and conventional tillage in the Beaver Creek watershed in West Tennessee
Lisa D. Olsen
1995, Open-File Report 95-329
In 1993, a study of pesticide movement and degradation in soils was intiated in the Beaver Creek watershed, which consists of about 95,000 acres and includes some of the Nation's most highly erodible soils. Resource-management agencies in this locality have recommended conservation tillage or "no-tillage" as a best management practices...
Well-construction, hydrogeologic, and ground-water-quality data in the vicinity of Belvidere, Boone County, Illinois
Timothy A. Brown, P.C. Mills
1995, Open-File Report 94-515
The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, is studying the hydrogeology and water quality of aquifers in the vicinity of Belvidere, Boone County, Ill. This report presents available well-construction, hydrogeologic, and ground-water-quality data compiled into a geographic information system (GIS) data base for this study....
Volcanic activity in Alaska: Summary of events and response of the Alaska Volcano Observatory 1994
Christina A. Neal, Michael P. Doukas, Robert G. McGimsey
1995, Open-File Report 95-271
During 1994, the Alaska Volcano Observatory (AVO) responded to eruptions, possible eruptions, or false alarms at nine volcanic centers-- Mount Sanford, Iliamna, the Katmai group, Kupreanof, Mount Veniaminof, Shishaldin, Makushin, Mount Cleveland and Kanaga (table 1). Of these volcanoes, AVO has a real time, continuously recording seismic network only at...
Geographic information system data sets of hydrogeologic conditions in Pequea and Mill Creek watersheds, Pennsylvania; Part II, Hydrogeologic interpretations
Dennis J. Low, Douglas C. Chichester, Stephen J. Char
1995, Open-File Report 95-193
This report describes Geographic Information System data sets of ground-water levels, unsaturated-zone thickness, and regolith thickness in the Pequea and Mill Creek watersheds, a 210-square-mile area in Lancaster and Chester Counties, Pa. The data sets, which represent hydrogeologic interpretations, were developed by the use of ARC/INFO software during 1990-93 by...
Ground-water use by public-supply systems in Tennessee, 1990
S. S. Hutson
1995, Open-File Report 94-483
Ground-water use by public water-supply systems during 1990 was inventoried in Tennessee. Ground- water withdrawals were estimated to average 269 million gallons per day (Mgal/d), or 38 percent of the total public-supply water use. This volume represents an increase of 34 percent in the use of ground water for public...