40 CFR 141.11 - Maximum contaminant levels for inorganic chemicals.

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§ 141.11 Maximum contaminant levels for inorganic chemicals.
(a) The maximum contaminant level for arsenic applies only to community water systems. The analyses and determination of compliance with the 0.05 milligrams per liter maximum contaminant level for arsenic use the requirements of § 141.23.
(b) The maximum contaminant level for arsenic is 0.05 milligrams per liter for community water systems until January 23, 2006.
(c) [Reserved]
(d) At the discretion of the State, nitrate levels not to exceed 20 mg/l may be allowed in a non-community water system if the supplier of water demonstrates to the satisfaction of the State that:
(1) Such water will not be available to children under 6 months of age; and
(2) The non-community water system is meeting the public notification requirements under § 141.209, including continuous posting of the fact that nitrate levels exceed 10 mg/l and the potential health effects of exposure; and
(3) Local and State public health authorities will be notified annually of nitrate levels that exceed 10 mg/l; and
(4) No adverse health effects shall result.
[40 FR 59570, Dec. 24, 1975, as amended at 45 FR 57342, Aug. 27, 1980; 47 FR 10998, Mar. 12, 1982; 51 FR 11410, Apr. 2, 1986; 56 FR 3578, Jan. 30, 1991; 56 FR 26548, June 7, 1991; 56 FR 30274, July 1, 1991; 56 FR 32113, July 15, 1991; 60 FR 33932, June 29, 1995; 65 FR 26022, May 4, 2000; 66 FR 7061, Jan. 22, 2001]

Title 40 published on 2014-07-01.

No entries appear in the Federal Register after this date, for 40 CFR Part 141.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.

United States Code

Title 40 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 141 after this date.

  • 2014-11-13; vol. 79 # 219 - Thursday, November 13, 2014
    1. 79 FR 67408 - Notice of Public Meeting and Webinar: Preliminary Regulatory Determinations for the Third Contaminant Candidate List
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      Notice of public meeting on potential rulemaking.
      The public meeting and webinar will be held on Tuesday, December 9, 2014, from 1 p.m. to 5 p.m., eastern time. Persons wishing to attend the meeting in person or online via webinar must register by December 2, 2014, as described in the SUPPLEMENTARY INFORMATION section.
      40 CFR Part 141