2024 40 CFR 147.1401 – State administered program–Class I, III, IV and V wells

2023 40 CFR 147.1401 – State administered program – Class I, III, IV and V wells

2022 40 CFR 147.1401 – State administered program – Class I, III, IV and V wells

2021 40 CFR 147.1401 – State administered program – Class I, III, IV and V wells

2020 40 CFR 147.1401 – State administered program–Class I, III, IV and V wells

2019 40 CFR 147.1401 – State administered program–Class I, III, IV and V wells

2016 40 CFR 147.1401 – State administered program–Class I, III, IV and V wells

2015 40 CFR 147.1401 – State administered program–Class I, III, IV and V wells

2014 40 CFR 147.1401 – State administered program-Class I, III, IV and V wells

2010 40 CFR 147.1401 – State administered program–Class I, III, IV and V wells

2009 40 CFR 147.1401 – State administered program–Class I, III, IV and V wells