2023 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits — Incorporation of permit conditions

2022 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits–Incorporation of permit conditions

2020 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits — Incorporation of permit conditions

2019 Washington Code 90.48.520

2018 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits — Incorporation of permit conditions

2016 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits–Incorporation of permit conditions

2015 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits–Incorporation of permit conditions

2014 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits — Incorporation of permit conditions

2013 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits — Incorporation of permit conditions

2009 Washington Code 90.48.520 – Review of operations before issuance or renewal of wastewater discharge permits — Incorporation of permit conditions