US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-221A — WASTEWATER DISCHARGE STANDARDS AND EFFLUENT LIMITATIONS173-221A-150WAC 173-221A-150WAC 173-221A-150. EnforcementLast amended: 1990Year: 2026Length: 27 wordsOfficial source This chapter shall be enforced through all legal, equitable, and other methods available to the department, including, but not limited to those described in chapter 90.48 RCW.PreviousWAC 173-221A-110