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This chapter implements chapters 43.21A, 90.48, 90.52, and 90.54 RCW by setting minimum discharge standards which represent "known, available, and reasonable methods" of prevention, control, and treatment for industrial wastewater facilities that discharge to waters of the state. This chapter supplements WAC 173-216-110, 173-218-100, and 173-220-130.
[Statutory Authority: Chapter 90.48 RCW. WSR 90-14-078 (Order 90-11), § 173-221A-010, filed 7/3/90, effective 8/3/90.]