2024 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2023 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2022 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2021 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2020 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2019 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2016 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2015 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants

2014 40 CFR 141.63 – Maximum contaminant levels (MCLs) for microbiological contaminants