eCFR Reference Browser

---

title: "40 CFR §141.541"

source: "https://www.ecfr.gov/current/title-40/section-141.541"

title_number: "40"

volume_number: "25"

chapter_number: "Unknown"

subchapter_code: "D"

subchapter_subject: "WATER PROGRAMS (CONTINUED)"

part_code: "141"

part_subject: "NATIONAL PRIMARY DRINKING WATER REGULATIONS"

subpart_code: "T"

subpart_subject: "Enhanced Filtration and Disinfection—Systems Serving Fewer Than 10,000 People"

section_number: "141.541"

section_subject: "What are significant changes to disinfection practice?"

cfr_reference: "40 CFR 141.541"

title_name: "Title 40"

title_subject: "Protection of Environment"

parts_covered: "Parts 136 to 149"

revised_date: "Revised as of July 1, 2019"

publication_date: "As of July 1, 2019"

contains_description: "Containing a codification of documents of general applicability and future effect"

publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"

---

Significant changes to disinfection practice include:

(a)Changes to the point of disinfection;

(b)Changes to the disinfectant(s) used in the treatment plant;

(c)Changes to the disinfection process; or

(d)Any other modification identified by the State.

§141.541 - What are significant changes to disinfection practice?