PDFWAC 173-201A-332
Table 332—Outstanding resource water designations by water resource inventory area (WRIA).
(1) Table 332 lists waterbodies designated as Tier III(A) or Tier III(B) outstanding resource waters. Waterbodies are designated in accordance with WAC 173-201A-330.
(2) The coordinates listed in Table 332 are defined in the North American 1983 Datum High Accuracy Reference Network (NAD83 HARN).
Table 332
WRIA | County or Counties | Waterbody Name | Designation Boundary | Tier III(A) or III(B) |
4 - Upper Skagit | Skagit | Cascade River and tributaries within the designation boundary. | Upstream from the west boundary of Mount Baker Snoqualmie National Forest (latitude 48.5324, longitude -121.3078) at the west section line of Section 07, Township 35 North, Range 12 East, to headwaters, including tributaries. | Tier III(A) |
26 - Cowlitz | Skamania | Green River and tributaries within designation boundary. | Upstream from the boundary of the Gifford Pinchot National Forest (latitude 46.3484, longitude -122.0938) at the west section line of Section 17, Township 10 North, Range 06 East, to headwaters, including tributaries. | Tier III(A) |
42 - Grand Coulee | Grant | Soap Lake | Latitude 47.4068, longitude -119.4969. | Tier III(B)1 |
45 - Wenatchee | Chelan | Napeequa River and tributaries within the designation boundary. | Upstream from the boundary of the Okanogan-Wenatchee National Forest and private land near river mile 1 (latitude 47.9269, longitude -120.8870) within Section 17, Township 28 North, Range 16 East, to headwaters, including tributaries. | Tier III(A) |
Notes for Table 332 | ||
1 Notes for Soap Lake: | ||
a. Soap Lake measurable change is defined as a decrease in salinity as measured by conductivity of 639 microsiemens per centimeter (µS/cm) or greater. | ||
b. In addition, human actions must not cause lake conductivity to decrease below 19,843 µS/cm as calculated as a seasonal average more than once in 10 years. | ||
c. Seasonal average conductivity is calculated as the arithmetic average of seven or more samples collected April through October. Sampling should be distributed throughout this period. | ||
[Statutory Authority: Chapter 90.48 RCW and 40 C.F.R. 131.12. WSR 24-01-088 (Order 22-06), § 173-201A-332, filed 12/18/23, effective 1/18/24.]