Versions of Washington Code 70A.205.205 - Disposal of sewage sludge or septic tank sludge prohibited -- Exemptions -- Uses of sludge material permitted on LawServer 2023 Washington Code 70A.205.205 – Disposal of sewage sludge or septic tank sludge prohibited — Exemptions — Uses of sludge material permitted 2022 Washington Code 70A.205.205 – Disposal of sewage sludge or septic tank sludge prohibited–Exemptions–Uses of sludge material permitted 2020 Washington Code 70A.205.205 – Disposal of sewage sludge or septic tank sludge prohibited — Exemptions — Uses of sludge material permitted
