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Groundwater Quality in the Central Ahtanum Valley, Yakima County, March 2001 - December 2002

Publication number Date Published
03-03-040July 2003
VIEW NOW Groundwater Quality in the Central Ahtanum Valley, Yakima County, March 2001 - December 2002 (Number of pages: 55) (Publication Size: 2MB)

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Author(s) Sinclair, K.
Description Thirteen wells in the central Ahtanum Valley of Yakima County were monitored quarterly from March 2001 to December 2002 for traditional field parameters and a small suite of laboratory analyzed constituents, to determine if groundwater quality has changed appreciable since area wells were first broadly sampled in June 1973. Apparent increases in nitrate+nitrite-N concentrations were noted between 1973 and 1992 and between 1973 and 2002. There was an apparent decrease in nitrate+nitrite-N concentrations between 1992 and 2002.
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Keywords Ahtanum, county, wells, quality, nitrate, groundwater, fecal coliform, chloride
WATERSHED Water Resource Inventory Area 37 Lower Yakima
DATA Environmental Information Management (EIM) #KSIN0006