2023 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities — Pollution control standards — Waste rock management plan — Citizen observation and verification of water samples — Volun

2022 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities–Pollution control standards–Waste rock management plan–Citizen observation and verification of water samples–Voluntary reduction plan-…

2020 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities — Pollution control standards — Waste rock management plan — Citizen observation and verification of water samples —

2019 Washington Code 78.56.100

2018 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities — Pollution control standards — Waste rock management plan — Citizen observation and verification of water samples &mdas…

2016 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities–Pollution control standards–Waste rock management plan–Citizen observation and verification of water samples–Voluntary reduction plan-…

2015 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities–Pollution control standards–Waste rock management plan–Citizen observation and verification of water samples–Voluntary reduction plan–Appl

2014 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities — Pollution control standards — Waste rock management plan — Citizen observation and verification of water samples — Voluntary reduction pl

2013 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities — Pollution control standards — Waste rock management plan — Citizen observation and verification of water samples — Voluntary reduction pl

2009 Washington Code 78.56.100 – Waste discharge permits for metals mining and milling operations tailing facilities — Pollution control standards — Waste rock management plan — Citizen observation and verification of water samples — Voluntary reduction plan — Application of this se