Chapter 6. Safe Drinking Water Regulations

§ 6141.102 - § 6141.109. [Reserved].

§ 6141.11. Maximum Contaminant Levels for Inorganic Chemicals. The provisions of 40 Code of Federal Regulations § 141.11, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.110. General Requirements. The provisions of 40 Code of Federal Regulations § 141.110, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.111. Treatment Techniques for Acrylamide and Epichlorohydrin. The provisions of 40 Code of Federal Regulations § 141.111, as revised and codified as of July 1, 2019, are hereby adopted by reference. S UBPART L D ISINFECTANT R ESIDUALS , D ISINFECTION B YPRODUCTS , AND D IS…

§ 6141.112 - § 6141.129. [Reserved]. D IV . 2 W ATER C ONTROL C H . 6 - D RINKING W ATER R EGULATIONS 23

§ 6141.12. [Reserved].

§ 6141.13. Maximum Contaminant Levels for Turbidity. The provisions of 40 Code of Federal Regulations §141.13, as revised and codified as of July 1, 2019, are hereby adopted by reference. D IV . 2 W ATER C ONTROL C H . 6 - D RINKING W ATER R EGULATIONS 6 S UBPART C M ONITORING AN…

§ 6141.130. General Requirements. The provisions of 40 Code of Federal Regulations § 141.130, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.131. Analytical Requirements. The provisions of 40 Code of Federal Regulations § 141.131, as revised and codified as of July 1, 2019, are hereby adopted by reference. D IV . 2 W ATER C ONTROL C H . 6 - D RINKING W ATER R EGULATIONS 24

§ 6141.132. Monitoring Requirements. The provisions of 40 Code of Federal Regulations § 141.132, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.133. Compliance Requirements. The provisions of 40 Code of Federal Regulations § 141.133, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.134. Reporting and Recordkeeping Requirements. The provisions of 40 Code of Federal Regulations § 141.134, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.135. Treatment Technique for Control of Disinfection Byproduct (DBP) Precursors. The provisions of 40 Code of Federal Regulations § 141.135, as revised and codified as of July 1, 2019, are hereby adopted by reference. S UBPART M [R ESERVED ] 2023 NOTE : Subpart M of Part 6…

§ 6141.136 - § 6141.150. [Reserved].

§ 6141.14 - § 6141.20. [Reserved].

§ 6141.151. Purpose and Applicability of this Subpart. The provisions of 40 Code of Federal Regulations § 141.151, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.152. Effective Dates. The provisions of 40 Code of Federal Regulations § 141.152(b) through (d) inclusive, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.153. Content of the Reports. The provisions of 40 Code of Federal Regulations § 141.153, as revised and codified as of July 1, 2019 are hereby adopted by reference.

§ 6141.154. Required Additional Health Information. The provisions of 40 Code of Federal Regulations § 141.154, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.155. Report Delivery and Recordkeeping. The provisions of 40 Code of Federal Regulations § 141.155. as revised and codified as of July 1, 2019, are hereby adopted by reference. A PPENDIX A TO S UBPART O – R EGULATED C ONTAMINANTS The provisions of Appendix A to Subpart O o…

§ 6141.156 - § 6141.169. [Reserved]. Appendix A to Subpart O – Regulated Contaminants

§ 6141.170. General Requirements. The provisions of 40 Code of Federal Regulations § 141.170, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.171. Criteria for Avoiding Filtration. The provisions of 40 Code of Federal Regulations § 141.171, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.172. Disinfection Profiling and Benchmarking. The provisions of 40 Code of Federal Regulations § 141.172, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.173. Filtration. The provisions of 40 Code of Federal Regulations § 141.173, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.174. Filtration Sampling Requirements. The provisions of 40 Code of Federal Regulations § 141.174, as revised and codified as of July 1, 2019, are hereby adopted by reference. D IV . 2 W ATER C ONTROL C H . 6 - D RINKING W ATER R EGULATIONS 27

§ 6141.175. Reporting and Recordkeeping Requirements. The provisions of 40 Code of Federal Regulations § 141.175, as revised and codified as of July 1, 2019, are hereby adopted by reference. S UBPART Q P UBLIC N OTIFICATION OF D RINKING W ATER V IOLATIONS 2023 NOTE: Sections 6141…

§ 6141.176 - § 6141.200. [Reserved].

§ 6141.2. Definitions. The provisions of 40 Code of Federal Regulations § 141.2, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.201. General Public Notification Requirements. The provisions of 40 Code of Federal Regulations § 141.201, as revised and codified as of July 1, 2019, are hereby adopted by reference. In addition, each owner or operator of a PWS must submit a draft of the public notificati…

§ 6141.202. Tier 1 Public Notice — Form, Manner, and Frequency of Notice. Except as otherwise provided in this Subpart, the provisions of 40 Code of Federal Regulations § 141.202, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.203. Tier 2 Public Notice — Form, Manner, and Frequency of Notice. The provisions of 40 Code of Federal Regulations § 141.203, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.204. Tier 3 Public Notice — Form, Manner, and Frequency of Notice. The provisions of 40 Code of Federal Regulations § 141.204, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.205. Content of the Public Notice. The provisions of 40 Code of Federal Regulations § 141.205, as revised and codified as of July 1, 2019, are hereby adopted by reference. D IV . 2 W ATER C ONTROL C H . 6 - D RINKING W ATER R EGULATIONS 29

§ 6141.206. Notice to New Billing Units or New Customers. The provisions of 40 Code of Federal Regulations § 141.206, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.207. Special Notice of the Availability of Unregulated Contaminant Monitoring Results. The provisions of 40 Code of Federal Regulations § 141.207, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.208. Special Notice for Exceedance of the SMCL for Fluoride. The provisions of 40 Code of Federal Regulations § 141.208, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.209. Special Notice for Nitrate Exceedances Above MCL by Non-community Water Systems (NCWS), Where Granted Permission by the Primacy Agency. The provisions of 40 Code of Federal Regulations § 141.209, as revised and codified as of July 1, 2019, are hereby adopted by refere…

§ 6141.21. Coliform Sampling. The provisions of 40 Code of Federal Regulations § 141.21, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.210. Notice by Primacy Agency on Behalf of the Public Water System. The provisions of 40 Code of Federal Regulations § 141.210, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.211. Special Notice for Repeated Failure to Conduct Monitoring of the Source Water for Cryptosporidium and for Failure to Determine Bin Classification or Mean Cryptosporidium Level. The provisions of 40 Code of Federal Regulations § 141.211, as revised and codified as of J…

§ 6141.212 - § 6141.299. [Reserved]. Appendix A to Subpart Q of Part 141 – NPDWR Violations and Situations Requiring Public Notice D IV . 2 W ATER C ONTROL C H . 6 - D RINKING W ATER R EGULATIONS 28 Appendix B to Subpart Q of Part 141 – Standard Health Effects Language for Public…

§ 6141.22. Turbidity Sampling and Analytical Requirements. The provisions of 40 Code of Federal Regulations § 141.22, as revised and codified as of July 1, 2019, are hereby adopted by reference. D IV . 2 W ATER C ONTROL C H . 6 - D RINKING W ATER R EGULATIONS 7

§ 6141.23. Inorganic Chemical Sampling and Analytical Requirements. The provisions of 40 Code of Federal Regulations § 141.23, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.24. Organic Chemicals, Sampling and Analytical Requirements. The provisions of 40 Code of Federal Regulations § 141.24, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.25. Analytical Methods for Radioactivity. The provisions of 40 Code of Federal Regulations § 141.25, as revised and codified as of July 1, 2019, are hereby adopted by reference.

§ 6141.26. Monitoring Frequency and Compliance requirements for Radionuclides in Community Water Systems. The provisions of 40 Code of Federal Regulations § 141.26, as revised and codified as of July 1, 2019, are hereby adopted by reference.