Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-557 - WATER RESOURCES MANAGEMENT PROGRAM FOR THE SPOKANE RIVER AND SPOKANE VALLEY RATHDRUM PRAIRIE (SVRP) AQUIFER
Section 173-557-040 - Stream management units
Universal Citation: WA Admin Code 173-557-040
Current through Register Vol. 24-06, March 15, 2024
Stream management units, control stations, and their application to surface water and groundwater withdrawals are established as shown in Table 1. Control stations are shown in the map in WAC 173-557-110.
Table 1 Stream Management Unit Information
| Stream Management Unit Name and Control Station Gauge # | Control Station by River Mile (RM); Latitude (Lat.), Longitude (Long.) | Application to Surface Water and Groundwater Withdrawals |
| Spokane River at Spokane USGS gauge #12422500 | RM 72.9; 47.65983N, 117.44911W (NAD 83) | Year-round instream flows for regulating surface water withdrawals from Sullivan Road bridge to Seven Mile bridge, and for regulating groundwater withdrawals within the boundary of the SVRP aquifer in Washington state |
| Spokane River at Greenacres (Barker Road) USGS gauge #12420500 | RM 90.5; 47.67740N, 117.15215W (NAD 83) | June 16 - September 30 instream flows for regulating surface water withdrawals between the Idaho state line and Sullivan Road bridge |
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