2024 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2023 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2022 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2021 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2020 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2019 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2016 30 CFR 816.42 – What Clean Water Act requirements apply to discharges from my operation?

2015 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2014 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2010 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations

2009 30 CFR 816.42 – Hydrologic balance: Water quality standards and effluent limitations