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Flow characteristics and water-quality conditions in the Spokane River, Coeur D'Alene Lake to Post Falls Dam, northern Idaho

Open-File Report 82-102

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Abstract

The Spokane River leaves the northern end of Coeur d'Alene Lake, flows westward past the cities of Coeur d'Alene and Post Falls, Idaho, through the Spokane Valley, and joins the Columbia River west of Spokane, Wash. Cross-sectional properties and water-quality characteristics were determined for flows of 6,100 to 8,440 cubic feet per second during June 8 to 12; 750 to 1,760 cubic feet per second during August 24 to 27; and 1,790 to 1,630 cubic feet per second during November 3 to 7, 1980. Cross-sectional areas measured ranged from 4,620 square feet to 17,000 square feet. Flow velocities ranged from 2.00 feet per second during June to less than 0.10 foot per second during August and November. Water quality in the reach was generally good. A small increase of total ammonia nitrogen occurred downstream of the Coeur d'Alene sewage-treatment plant. (USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Flow characteristics and water-quality conditions in the Spokane River, Coeur D'Alene Lake to Post Falls Dam, northern Idaho
Series title:
Open-File Report
Series number:
82-102
Edition:
-
Year Published:
1981
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
iii, 60 p., ill. ;28 cm.