Notes
Washington Administrative Code (WAC) 173-201A sections 030, 040, 050, and 060 covering water quality standards for surface waters in Washington State, published by the Washington State Department of Ecology. Exhibit 113 (AR017890–AR017892) includes: lake total phosphorus (TP) nutrient criteria by ecoregion (Cascades, Columbia Basin, Willamette, East Cascade Foothills, Blue Mountain) with trophic state classifications (ultra-oligotrophic, oligotrophic, lower mesotrophic, upper mesotrophic) and action values; WAC 173-201A-040 toxic substances criteria table listing freshwater and marine acute/chronic criteria (µg/L or mg/L) for Aldrin/Dieldrin, Ammonia, Arsenic, Cadmium, Chlordane, Chloride, Chlorpyrifos, Chromium (Hex and Tri), Copper, Cyanide, DDT, Endosulfan, Endrin, Heptachlor, Lead, Mercury, Nickel, Parathion, Pentachlorophenol, PCBs, Selenium, Silver, Toxaphene, Zinc; WAC 173-201A-050 radioactive substances standards referencing WAC 246-221-290 and USEPA Drinking Water Regulations; WAC 173-201A-060 general considerations for boundary waters, estuaries, fecal coliform, and salinity. Statutory authority RCW 90.48 and 40 CFR 131; Order 94-19, filed 11/18/97.