||Support document for designation of the Lewiston Basin Aquifer as a sole source aquifer
||Environmental Protection Agency, Seattle, WA. Office of Ground Water.
Aquifer--Washington (State)--Lewiston Basin ;
Aquifer--Idaho--Lewiston Basin ;
Groundwater--Washington (State)--Lewiston Basin ;
Groundwater--Idaho--Lewiston Basin ;
Water-supply--Washington (State)--Lewiston Basin ;
Water supply ;
Ground water ;
Stream flow ;
Water quality ;
Lewiston Basin Aquifer ;
Drinking water ;
Asotin County(Washington) ;
Ground water movement
||Region 10 Library/Seattle,WA
||Some EPA libraries have a fiche copy filed under the call number shown.
||26 p. : ill. ; 28 cm.
||The Asotin County (Washington) Public Utility District petitioned the Environmental Protection Agency (EPA) to declare its drinking water supply as a sole source aquifer under Section 1424(e) of the Safe Drinking Water Act. In response, EPA prepared a document which briefly describes the geology, ground-water hydrology, and drinking water consumption of the Lewiston Basin. The report describes the technical basis for EPA's decision to designate the Lewiston Basin Aquifer System as a sole source aquifer. The Lewiston Basin is an approximately 500 square mile structural and topographic depression in southeastern Washington and western north-central Idaho, including part of the Nez Perce Indian Reservation. Ground water provides about 68 percent of the drinking water consumed in the Lewiston Basin. Community water supply wells all withdraw drinking water from the Grande Ronde Basalt. However, according to EPA guidelines, those supplies cannot economically serve all those who depend upon the aquifer system for drinking water.
||"September 1988" PB89-158893
||Seattle, Wash. :
||See also PB89-158885.
|Corporate Au Added Ent
||United States. Environmental Protection Agency. Region X. ; United States. Environmental Protection Agency. Region X.
|PUB Date Free Form
||PC A03/MF A01
|OCLC Time Stamp
|OCLC Rec Leader
||01118nam 2200277Ia 45010