2023 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities — Siting criteria — Primary screening process — Technical site investigation — Site selection report

2022 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities–Siting criteria–Primary screening process–Technical site investigation–Site selection report

2020 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities — Siting criteria — Primary screening process — Technical site investigation — Site selection report

2019 Washington Code 78.56.090

2018 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities — Siting criteria — Primary screening process — Technical site investigation — Site selection report

2016 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities–Siting criteria–Primary screening process–Technical site investigation–Site selection report

2015 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities–Siting criteria–Primary screening process–Technical site investigation–Site selection report

2014 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities — Siting criteria — Primary screening process — Technical site investigation — Site selection report

2013 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities — Siting criteria — Primary screening process — Technical site investigation — Site selection report

2009 Washington Code 78.56.090 – Initial waste discharge permits for tailings facilities — Siting criteria — Primary screening process — Technical site investigation — Site selection report