EPA Finalizes Requirements for Monitoring Unregulated Contaminants in Drinking Water

December 20th, 2016 by Ann Rippe Regulatory Updates

Action Forcing Change Summary
EPA is finalizing the Unregulated Contaminant Monitoring Rule 4 (UCMR 4) under which certain community and non-transient, non-community water systems are required to monitor for a total of 30 chemical contaminants, 29 that are not yet subject to SWDA standards and one group of regulated contaminants. The 5-year UCMR 4 program will take place from January 2017 through December 2021, with sample collection occurring between January 1,2018 and December 31, 2020.

For full text of 81 FR 92666, click here.

Related Citations
40 CFR 141.35(b)(1); 40 CFR 141.35(b)(2); 40 CFR 141.35(c)(1); 40 CFR 141.35(c)(2); 40 CFR 141.35(c)(3); 40 CFR 141.35(c)(5); 40 CFR 141.35(c)(6); 40 CFR 141.35(d)(2); 40 CFR 141.35(e); 40 CFR 141.40(a)

Ann Rippe

Manager of Regulatory Services