Notes
Exhibit AR021263 from the PCHB Third Runway EIS administrative record. Excerpts from Washington Administrative Code (WAC) Title 173, Chapter 173-201A, covering Washington State Department of Ecology water quality standards for surface waters. Includes Table 1 ecoregional total phosphorus (TP) criteria for Cascades and Columbia Basin ecoregions (trophic states: ultra-oligotrophic, oligotrophic, lower mesotrophic, upper mesotrophic), lake-specific nutrient criteria procedures, toxic substances criteria table for freshwater and marine water (acute and chronic values in µg/L for substances including Aldrin/Dieldrin, Ammonia, Arsenic, Cadmium, Chlordane, Chloride, Chlorine, Chlorpyrifos, Chromium, Copper, Cyanide, DDT, Endosulfan, Endrin, Heptachlor, Lindane, Lead, Mercury, Nickel, Parathion, Pentachlorophenol, PCBs, Selenium, Silver, Toxaphene, Zinc), hardness-dependent conversion factors, radioactive substances standards under WAC 246-221-290 and USEPA Drinking Water Regulations, and general considerations for brackish water and classification boundaries. Statutory authority: Chapter 90.48 RCW and 40 CFR 131.