2023 Washington Code 35.21.215 – Powers relative to systems of sewerage

2022 Washington Code 35.21.215 – Powers relative to systems of sewerage

2020 Washington Code 35.21.215 – Powers relative to systems of sewerage

2019 Washington Code 35.21.215 – Powers relative to systems of sewerage

2018 Washington Code 35.21.215 – Powers relative to systems of sewerage

2016 Washington Code 35.21.215 – Powers relative to systems of sewerage

2015 Washington Code 35.21.215 – Powers relative to systems of sewerage

2014 Washington Code 35.21.215 – Powers relative to systems of sewerage

2013 Washington Code 35.21.215 – Powers relative to systems of sewerage

2009 Washington Code 35.21.215 – Powers relative to systems of sewerage