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Appendix A GIS Maps Depicting EPA's Disapproval Action

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Washington’s 2003 revised aquatic life designated uses are depicted on EPA’s “Use maps” below titled EPA Findings on Washington’s Designated Uses through the use of color coding. Streams coded green depict waters Washington designated as “Char” use, streams coded light blue depict waters Washington designated as “Core” use, streams coded brown depict waters Washington designated as “Non-Core” use, and streams coded black depict waters Washington designated as “Rearing and migration only” use.

The streams where EPA is taking a disapproval action are also color coded on EPA’s “Use” maps below. Streams coded as dark blue depict streams Washington designated as “Non-Core” use with a 17.5°C criterion that EPA is disapproving because the record indicates that they should be “Core” use with a 16°C criterion, streams coded purple depict streams Washington designated as “Core” use with a 16°C criterion that EPA is disapproving because the record indicates that they should be “Char” use with a 12°C criterion, streams coded pink depict streams Washington designated as “Non-Core” use with a 17.5°C criterion that EPA is disapproving because the record indicates that they should be “Char” use with a 12°C criterion, and streams coded dark brown depict streams Washington designated as “Rearing and migration only” use that EPA is disapproving because the record indicates that they should be “Non-core” use.

EPA’s “Spawning maps” below titled Application of 13°C to Protect Spawning & Incubation and Application of 13°C and 9°C to Protect Spawning and Incubation depict where and when EPA is disapproving the 17.5°C, 16°C, or 12°C criteria because the 13°C or 9°C criteria need to apply to protect salmon or bull trout spawning/incubation.

Notes:
"WAC" refers to Washington Administrative Code.
"Core" refers to the "Salmon and trout spawnng, core rearing, and migration" use.
"Non-Core" refers to the "Salmon and trout spawning, noncore rearing, and migration" use

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URL: http://yosemite.epa.gov/R10/WATER.NSF/Water+Quality+Standards/WA+WQS+App+A