2024 40 CFR 258.27 – Surface water requirements

2023 40 CFR 258.27 – Surface water requirements

2022 40 CFR 258.27 – Surface water requirements

2021 40 CFR 258.27 – Surface water requirements

2020 40 CFR 258.27 – Surface water requirements

2019 40 CFR 258.27 – Surface water requirements

2016 40 CFR 258.27 – Surface water requirements

2015 40 CFR 258.27 – Surface water requirements

2014 40 CFR 258.27 – Surface water requirements

2010 40 CFR 258.27 – Surface water requirements

2009 40 CFR 258.27 – Surface water requirements