republic-os/legal/us/code/title-42/chapter-6a/section-300j-13.md

type, title, description, jurisdiction, corpus, kind, title_number, title_name, chapter_number, chapter_name, section, citation, status, release_point, release_date, source, source_url, source_identifier, source_file, source_hash, raw_snapshot_hash, text_hash, retrieved_at, confidence, tags

type	title	description	jurisdiction	corpus	kind	title_number	title_name	chapter_number	chapter_name	section	citation	status	release_point	release_date	source	source_url	source_identifier	source_file	source_hash	raw_snapshot_hash	text_hash	retrieved_at	confidence	tags
LegalText	42 U.S.C. § 300j–13	Source water quality assessment	us	united_states_code	code_section	42	THE PUBLIC HEALTH AND WELFARE	6A	PUBLIC HEALTH SERVICE	300j–13	42 U.S.C. § 300j–13	current	119-100	2026-06-26	official	https://uscode.house.gov/download/releasepoints/us/pl/119/100/xml_usc42@119-100.zip	/us/usc/t42/s300j–13	data/legal/raw/us/code/title-42/usc42.xml	a337b6a065374347539ff1346c8a5a715fa5f67753ff0d32a9f607f8d65659fe	644321055a08eb1f260a6a3e31ac157fa024756abf612a9fd6857e7e400cf24e	c24c3ce7e4c0499e5eb0817c87d9cbf57d71eb17c449a138f5a460ee24e7d520	2026-07-04	official	legal us-code

42 U.S.C. § 300j–13 - Source water quality assessment

Text

(a) Source water assessment (1) Guidance Within 12 months after August 6, 1996, after notice and comment, the Administrator shall publish guidance for States exercising primary enforcement responsibility for public water systems to carry out directly or through delegation (for the protection and benefit of public water systems and for the support of monitoring flexibility) a source water assessment program within the State’s boundaries. Each State adopting modifications to monitoring requirements pursuant to section 300g–7(b) of this title shall, prior to adopting such modifications, have an approved source water assessment program under this section and shall carry out the program either directly or through delegation.

(2) Program requirements A source water assessment program under this subsection shall—

(A) delineate the boundaries of the assessment areas in such State from which one or more public water systems in the State receive supplies of drinking water, using all reasonably available hydrogeologic information on the sources of the supply of drinking water in the State and the water flow, recharge, and discharge and any other reliable information as the State deems necessary to adequately determine such areas; and

(B) identify for contaminants regulated under this subchapter for which monitoring is required under this subchapter (or any unregulated contaminants selected by the State, in its discretion, which the State, for the purposes of this subsection, has determined may present a threat to public health), to the extent practical, the origins within each delineated area of such contaminants to determine the susceptibility of the public water systems in the delineated area to such contaminants.

(3) Approval, implementation, and monitoring relief A State source water assessment program under this subsection shall be submitted to the Administrator within 18 months after the Administrator’s guidance is issued under this subsection and shall be deemed approved 9 months after the date of such submittal unless the Administrator disapproves the program as provided in section 300h–7(c) of this title. States shall begin implementation of the program immediately after its approval. The Administrator’s approval of a State program under this subsection shall include a timetable, established in consultation with the State, allowing not more than 2 years for completion after approval of the program. Public water systems seeking monitoring relief in addition to the interim relief provided under section 300g–7(a) of this title shall be eligible for monitoring relief, consistent with section 300g–7(b) of this title, upon completion of the assessment in the delineated source water assessment area or areas concerned.

(4) Timetable The timetable referred to in paragraph (3) shall take into consideration the availability to the State of funds under section 300j–12 of this title (relating to State loan funds) for assessments and other relevant factors. The Administrator may extend any timetable included in a State program approved under paragraph (3) to extend the period for completion by an additional 18 months.

(5) Demonstration project The Administrator shall, as soon as practicable, conduct a demonstration project, in consultation with other Federal agencies, to demonstrate the most effective and protective means of assessing and protecting source waters serving large metropolitan areas and located on Federal lands.

(6) Use of other programs To avoid duplication and to encourage efficiency, the program under this section may make use of any of the following:

(A) Vulnerability assessments, sanitary surveys, and monitoring programs.

(B) Delineations or assessments of ground water sources under a State wellhead protection program developed pursuant to this section.

(C) Delineations or assessments of surface or ground water sources under a State pesticide management plan developed pursuant to the Pesticide and Ground Water State Management Plan Regulation (subparts I and J of part 152 of title 40, Code of Federal Regulations), promulgated under section 136a(d) of title 7.

(D) Delineations or assessments of surface water sources under a State watershed initiative or to satisfy the watershed criterion for determining if filtration is required under the Surface Water Treatment Rule (section 141.70 of title 40, Code of Federal Regulations).

(E) Delineations or assessments of surface or ground water sources under programs or plans pursuant to the Federal Water Pollution Control Act [33 U.S.C. 1251 et seq.].

(7) Public availability The State shall make the results of the source water assessments conducted under this subsection available to the public.

(b) Approval and disapproval For provisions relating to program approval and disapproval, see section 300h–7(c) of this title.

(July 1, 1944, ch. 373, title XIV, § 1453, as added Pub. L. 104–182, title I, § 132(a), Aug. 6, 1996, 110 Stat. 1673.)

Notes

Editorial Notes

References in TextThe Federal Water Pollution Control Act, referred to in subsec. (a)(6)(E), is act June 30, 1948, ch. 758, as amended generally by Pub. L. 92–500, § 2, Oct. 18, 1972, 86 Stat. 816, which is classified generally to chapter 26 (§ 1251 et seq.) of Title 33, Navigation and Navigable Waters. For complete classification of this Act to the Code, see Short Title note set out under section 1251 of Title 33 and Tables.