2023 Washington Code 90.48.422 – Water quality standards — Compliance methods — Department authority

2022 Washington Code 90.48.422 – Water quality standards–Compliance methods–Department authority

2020 Washington Code 90.48.422 – Water quality standards — Compliance methods — Department authority

2019 Washington Code 90.48.422

2018 Washington Code 90.48.422 – Water quality standards — Compliance methods — Department authority

2016 Washington Code 90.48.422 – Water quality standards–Compliance methods–Department authority

2015 Washington Code 90.48.422 – Water quality standards–Compliance methods–Department authority

2014 Washington Code 90.48.422 – Water quality standards — Compliance methods — Department authority

2013 Washington Code 90.48.422 – Water quality standards — Compliance methods — Department authority

2009 Washington Code 90.48.422 – Water quality standards — Compliance methods — Department authority