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Rick Dinicola,
Hydrologist,
934 Broadway,
Suite 300
Tacoma, WA 98402

(dinicola@usgs.gov)
(253) 552-1603
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Colville Reservation Water Resources

Project Summaries

  
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WA163 - Water Resources of the Colville Indian Reservation - Completed FY1973

Problem - The Colville Indian Reservation covers 2,200 sq. mi. In northeastern Washington. Very little is known of the water resources of the reservation, especially the ground water. Discharge records have been obtained at seven gaging stations with records ranging in length from 1 to 18 years, mostly before 1930, and a few miscellaneous discharge measurements have been made, mostly before 1920. Developments around some of the lakes are beginning to accelerate eutrophication, and planned developments will increase this problem. HUD is planning low-cost housing developments on the reservation and the availability of water for domestic use must be determined. A better understanding of the water resources is needed for the Indians to protect their rights and guide future development.

Objectives - To assess the availability of ground and surface water. Inventory the present use of water. Measure the present quality of the water resources so action can be taken now where needed to protect this valuable resource, and guide planning for future developments.

Approach - The present use of water will be inventoried. All wells on the reservation will be scheduled. The extent and thickness of glacial deposits will be determined. About 14 observation wells will be augured or drilled and aquifer characteristics determined. Five gaging stations will be installed and miscellaneous measurements made at over 40 sites. Eleven lakes will be studied by the process developed in wa 70-136c. Samples will be analyzed from surface-water and ground-water sources.

WA201 - Water Resources of No Name Creek Valley, Colville Indian Reservation - Completed FY1978

Problem - Basic hydrologic data are needed by the U.S. District Court to adjudicate a water rights dispute between the Colville Indian Tribe and a non-Indian landowner.

Objectives - Determine the ground-water and surface-water systems of the valley sufficiently to permit sound court decisions.

Approach - Surface-water gages and staff gages will be installed on the creeks and a diversion canal; all ground-water pumpage and water taken from the streams for irrigation will be measured; several water-level recorders will be installed; three test wells and six auger holes will be drilled for observation wells.

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