2024 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2023 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2022 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2021 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2020 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2019 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2016 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2015 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract

2014 40 CFR 268.41 – Treatment standards expressed as concentrations in waste extract