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News Releases: 1997

Sprinkler Irrigation Improves Surface-Water Quality
Farmers who use sprinklers to irrigate their crops have helped to decrease runoff of water, soil, and chemicals from cropland, thereby improving water quality of streams and rivers, according to a new fact sheet released by the U.S. Geological Survey (USGS).

Technical Announcement 98-2 - Estimates of Recharge from Runoff at the Hanford Site, Washington
New estimates of ground-water recharge from runoff at the Hanford Site in southwestern Washington have been calculated and presented in USGS Water Resources Investigations Report (WRIR) 97-4038. Recharge that results from runoff generated in nearby Cold Creek and Dry Creek basins was estimated using short-term data from Cold Creek and Dry Creek basins, in combination with long term-climate data and a numerical simulation of runoff and recharge.

Technical Announcement 98-1 - Electronic version of Washington State section of National Water Summary on Wetland Resources
The Washington State section of the National Water Summary on wetland resources is now available in electronic format on the Washington District's Home Page. The report can be read or downloaded by accessing the Internet address Each of the figures can be viewed separately by hypertext link to a GIF file.

Technical Announcement 97-3 - New water-use feature on USGS Washington Water Science Center home page
A new addition to the Washington District's Home Page features estimates of water use in the State of Washington for Calendar Years 1985 and 1990. The two sets of data are broken down by county and major drainage basins.

Technical Announcement 97-2 - Are walleye from Lake Roosevelt contaminated with mercury?
Questions related to possible mercury contamination of walleye and other sport fishes in the upper Columbia River and Franklin D. Roosevelt Lake are addressed in a recently released fact sheet by the U.S. Geological Survey, Washington Water Science Center, in Tacoma, Washington.

Technical Announcement 97 - What Causes Floods in Washington State? and The `100-Year Flood
Two new fact sheets have just been released by the U.S. Geological Survey (USGS), Washington Water Science Center, in Tacoma, Washington.

Model Used to Predict Where Ground Water is Most Vulnerable to Nitrate
Water wells in the Puget Sound Basin that are most at risk to elevated levels of nitrate have been identified with the help of a new statistical model, according to a fact sheet published by the Department of the Interior, U.S. Geological Survey (USGS).

Low Levels of 23 Pesticides Found in Small Streams in Puget Sound Region
Low concentrations of pesticides were found in small urban and agricultural stre ams in the Puget Sound region, according to a fact sheet jointly authored by the U.S. Geological Survey (USGS) and the Washington State Department of Ecology (W DOE).

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