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Spokane Valley Project
Spokane Valley Project | Project History | Project Data | Contact Information

Project Data
Land Areas (1992)
Area Irrigated and Crop Value

 

  

Project # 808

Land Areas (1992)
Irrigable area:
Full Irrigation Service5,673 acres
Supplemental Service0 acres
Temporary Irrigation Service0 acres
Number of Irrigated Farms320
Residential, Commercial, Industrial Lands1,830 acres
Total Irrigable Lands7,503 acres

 

Population Served:
Farm Population Served965
Non-Farm Population Served16,210
Total Population Served17,175

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Area Irrigated and Crop Value
YearActual Area Irrigated (Acres)Crop Value (Dollars)
19833,040866,625
19844,131950,262
19854,1951,340,950
19864,2601,160,825
19874,2401,204,050
19884,1851,188,425
19894,2151,041,658
19904,115779,685
19913,925796,695
19923,995822,440

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Project Water Supply
Project Water Quality

 

   

Project Water Supply

Current Conditions

Weather Conditions (NOAA)

Precipitation

Drought Index

Palmer Drought Index
Explanation of Palmer Drought Severity Index (Text)

 


Historic Conditions

Annual Precipitation
Normal16.49 in
Maximum - 198322.64 in
Minimum - 198511.21 in
Spokane, Washington 1961-1996 

 

Temperature
Mean Annual48 ?F
Daily Maximum - 07/26/1928108 ?F
Daily Minimum - 12/30/1968-25 ?F
Spokane, Washington 1889-1996 
Growing Season179 days
Elevation of irrigable area1,900 - 2,100 ft

 

Ground-water supply from 34 wells16-22 inches in diameter
Average annual pumped supplyacre ft

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Project Water Quality

Upper Spokane River

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Facilities in Operation
Storage Facilities
Carriage Facilities
Pumping Plants

 

   

Facilities in Operation
Pressure pipelines103 mi
Service Connections (domestic, municipal, and industrial)3,235
Service Connections (irrigation)3,500
Wells34
Pumping Units34

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Storage Facilities

Eleven elevated steel-tank regulation reservoirs, 6,680-ft3 capacity each. Total capacity 73,480 ft3.

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Carriage Facilities

Pressure pipelines, asbestos-cement, ranging in diameter from 6 to 24 in, extending for 103 miles.

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Pumping Plants
DesignationNumber of unitsTotal capacity, cfsTotal dynamic head, ftTotal horsepower
Well pump units341622.6-7.4100-300

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Last updated: May 17, 2011