2024 30 CFR 817.47 – Hydrologic balance: Discharge structures

2023 30 CFR 817.47 – Hydrologic balance: Discharge structures

2022 30 CFR 817.47 – Hydrologic balance: Discharge structures

2021 30 CFR 817.47 – Hydrologic balance: Discharge structures

2020 30 CFR 817.47 – Hydrologic balance: Discharge structures

2019 30 CFR 817.47 – Hydrologic balance: Discharge structures

2016 30 CFR 817.47 – What requirements apply to discharge structures for impoundments?

2015 30 CFR 817.47 – Hydrologic balance: Discharge structures

2014 30 CFR 817.47 – Hydrologic balance: Discharge structures

2010 30 CFR 817.47 – Hydrologic balance: Discharge structures

2009 30 CFR 817.47 – Hydrologic balance: Discharge structures