2024 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments

2023 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments

2022 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments

2021 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments

2020 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments

2019 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments

2016 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments

2015 40 CFR 257.71 – Liner design criteria for existing CCR surface impoundments