2024 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2023 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2022 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2021 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2020 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2019 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2016 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2015 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2014 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2010 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

2009 40 CFR 422.42 – Effluent limitations and guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available