Record Display for the EPA National Library Catalog
RECORD NUMBER: 4 OF 8
|OLS Field Name||OLS Field Data|
|Main Title||Relation between nitrate in water wells and potential sources in the lower Yakima valley, Washington /|
|Publisher||United States Environmental Protection Agency, Region 10,|
|Report Number||EPA 910-R-12-003|
|Subjects||Drinking water--Contamination--Washington (State)--Yakima Valley. ; Groundwater--Pollution--Washington (State)--Yakima Valley. ; Water--Nitrogen content--Washington (State)--Yakima Valley. ; Washington (State)--Yakima River Valley.|
|Collation||307 pages including appendices : illustrations : color ; 28 cm|
Also available on the internet. Includes bibliographical references at end of each chapter/appendix.
From February through April 2010, EPA conducted sampling of drinking water wells and potential sources of nitrate contamination in the Lower Yakima Valley, which is in Yakima County in central Washington State. The Yakama Reservation composes a large percentage of the Lower Yakima Valley. EPA’s effort entailed collecting over 331 samples from residential drinking water wells for nitrate and bacteria, and multi-parameter sampling on 29 water wells (26 residential drinking water wells and three dairy supply wells), 12 dairy lagoons (15 samples), 11 soil samples (five at dairy application fields and six at irrigated and fertilized crop fields1), five dairy manure pile samples, and three wastewater treatment plant (WWTP) influent samples. This report presents the results of these sampling efforts.