J. Wright Horton Jr.
1998, Fact Sheet 184-97
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Publication Extents
Not all publications have extents, not all extents are completely accurateWater Resources Division, U.S. Geological Survey
1998, Fact Sheet 172-97
Gary K. Speiran, Pixie A. Hamilton, Michael D. Woodside
1998, Fact Sheet 178-97
Ground-water discharge is a significant source of nitrate load to tidal creeks, coastal estuaries, and Chesapeake Bay. Different studies have found that forest buffers greater than 200 feet wide remove most of the nitrate from passing ground water. These buffers are commonly included in regional nutrient-management strategies. Results of a...
Kenneth D. Fossum, Dawn S. McDoniel
1998, Fact Sheet 192-97
The U.S. Environmental Protection Agency, under section 402 (p) of the Water Quality Act of 1987, has required municipalities with populations of more than 100,000 to obtain National Pollutant Discharge Elimination System (NPDES) permits for urban stormwater discharge. This regulation is intended to minimize pollutant loadings from urbanized areas and...
S.J. Kropschot
1998, Fact Sheet 008-98
Minerals are chemical compounds abundant in the rocks, soil, and water around us and they have a profound impact on the lives of all beings. Naturally occurring minerals define the landscape in which we live. They affect our ecosystems, influence the availability of nutrients that support biota, impact the distribution...
S.J. Kropschot
1998, Fact Sheet 011-98
The USGS is the country's leading earth science organization. Since 1879, USGS scientists have gathered and analyzed data and disseminated the results of their research on the geology, cartography, hydrology, and, more recently biology, of every continent and ocean on Earth. Multidisciplinary research both in the United States and in...
David L. Butler
1998, Fact Sheet 159-97
David L. Naftz, Heidi K. Hadley, Gilbert L. Hunt
1998, Fact Sheet 191-97
Methane gas, commonly referred to as "natural gas," is being produced from coal beds in central Utah (fig. 1) at an increasing rate since the early 1990s. The methane was generated over millions of years during the formation of coal in the area. Coal originates as plant matter that has...
Bruce Jaffe, Robert Kayen, Helen Gibbons, James W. Hendley II, Peter H. Stauffer
1998, Fact Sheet 020-98
In February 1995, a 1,600-foot stretch of popular beach at Sleeping Bear Dunes National Lakeshore suddenly slid into the waters of northeastern Lake Michigan. The National Park Service (NPS) immediately requested the assistance of the U.S. Geological Survey (USGS) in evaluating the hazard at the lakeshore. To protect the public,...
Water Resources Division, U.S. Geological Survey
1998, Fact Sheet 012-98
As United States coal resources continue to be examined for potential development, a critical need exists for a digital database containing locations and status of all Federal coal resources. This Fact Sheet describes the development of such a digital database and presents examples of how the U.S. Geological Survey (USGS)...
E. L. Inkpen, S.S. Embrey
1998, Fact Sheet 009-98
Ray J. Hoffman, R. Lynn Taylor
1998, Fact Sheet 001-98
M. D. Woodside, Reavis L. Mitchell
1998, Fact Sheet 014-98
Randolph S. Parker
1998, Fact Sheet 196-97
Michael J. Langland
1998, Fact Sheet 003-98
The Susquehanna River contributes nearly 50 percent of the freshwater discharge to the Chesapeake Bay in a year of normal or average streamflow. The river also transports the greatest amount of nutrients (estimates of nearly 66 percent of the nitrogen and 40 percent of the phosphorus load) from all nontidal...
Kirby H. Wynn, Norman E. Spahr
1998, Fact Sheet 160-97
The Upper Colorado River Basin (UCOL) is one of 59 National Water-Quality Assessment (NAWQA) study units designed to assess the status and trends of the Nation?s water quality (Leahy and others, 1990). The UCOL study unit began operation in 1994, and surface-water-quality data collection at a network of 14 sites...
Ralph W. Teller, Michael J. Burr
1998, Fact Sheet 021-98
M.W. Shockey, Herbert Brass
1998, Fact Sheet 034-98
Terry L. Maluk, Robert E. Kelley II
1998, Fact Sheet 007-98
IntroductionThis report summarizes the available pesticide data for surface waters in the Santee River Basin and coastal drainages (SANT) study area, as part of the U.S. Geological Survey (USGS) National Water-Quality Assessment (NAWQA) Program. Data from the U.S. Environmental Protection Agency Storage and Retrieval database and data collected by the...
Bobbie Myers, Steven R. Brantley, Peter Stauffer, James W. Hendley II
1998, Fact Sheet 002-97
No abstract available....
Bernard T. Nolan, Barbara C. Ruddy
1998, Fact Sheet 092-96
Using data compiled by the National Water Quality Assessment Program (NAWQA), the USGS has evaluated the potential for nitrate contamination of ground waters in the United States. Soil-drainage characteristics and the amount of nitrogen contributed by fertilizer, manure, and atmospheric sources were found to markedly influence the concentration of nitrate...
Stanley Baldys, D. Grant Phillips
1998, Fact Sheet 170-97
This fact sheet presents the 1996–97 stream monitoring and outreach activities of the U.S. Geological Survey (USGS), the Red River Authority of Texas, the U.S. Army Corps of Engineers, the City of Wichita Falls, the Wichita County Water Improvement District No. 2, and the Texas Water Development Board. The fact...
Marcus C. Waldron, Chip Norton, Timothy W.D. MacDonald
1998, Fact Sheet 101-98
Introduction The Cambridge Water Department (CWD) supplies about 15 million gallons of water each day to more than 95,000 customers in the City of Cambridge, Massachusetts. Most of this water is obtained from a system of reservoirs located in Cambridge and in parts of five other suburban-Boston communities. The drainage basin...
Water Resources Division, U.S. Geological Survey
1998, Fact Sheet 094-98
In August 1993, the U.S. Geological Survey's (USGS) National Mapping Division and the U.S. Department of Agriculture's Forest Service signed an Interagency Agreement to begin a single-edition joint mapping program. This agreement established the coordination for producing and maintaining single-edition primary series topographic maps for quadrangles containing National Forest System...
H. Keith Long, Richard L. Daddow, Jerry W. Farrar
1998, Fact Sheet 031-98
Since 1962, the U.S. Geological Survey (USGS) has operated the Standard Reference Sample Project to evaluate the performance of USGS, cooperator, and contractor analytical laboratories that analyze chemical constituents of environmental samples. The laboratories are evaluated by using performance evaluation samples, called Standard Reference Samples (SRSs). SRSs are submitted to...