15A N.C. Admin. Code 18C.1510

Current through Register Vol. 39, No. 13, January 2, 2025

Section 18C .1510 - MAXIMUM CONTAMINANT LEVELS FOR INORGANIC CHEMICALS

(a) The provisions of 40 C.F.R. 141.11 are hereby incorporated by reference including any subsequent amendments and editions, except the maximum contaminant level for arsenic shall be regulated as set forth in Paragraph (c) of this Rule. Copies are available for public inspection as set forth in Rule .0102 of this Subchapter.

(b) The provisions of 40 C.F.R. 141.62 are hereby incorporated by reference including any subsequent amendments and editions. Copies are available for public inspection as set forth in Rule .0102 of this Subchapter.

(c) Effective January 1, 2002, the maximum contaminant level for arsenic applies to community and non-transient non-community water systems are as follows:

(1) The maximum contaminant level for arsenic is 0.010 milligrams per liter, until such time as the USEPA revises the standard to a level lower than 0.010 milligrams per liter at which time the more stringent level shall apply.

(2) Sampling, analytical requirements, and compliance calculations for arsenic shall be conducted as specified for contaminants in Rule .1508 of this Subchapter.

(3) Certified laboratories must report quantifiable results down to at least 0.005 milligrams per liter.

15A N.C. Admin. Code 18C .1510

Authority G.S. 130A-315; P.L. 93-523; 40 C.F.R. 141;
Eff. September 1, 1979;
Amended Eff. October 1, 1986; October 1, 1982; April 1, 1982; March 31, 1981;
Transferred and Recodified from 10 NCAC 10D .1616 Eff. April 4, 1990;
Amended Eff. April 1, 1992;
Temporary Amendment Eff. January 1, 2002;
Amended Eff. April 1, 2014; April 1, 2003;
Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. November 23, 2015.

Amended by North Carolina Register Volume 28, Issue 21, May 1, 2014, effective 4/1/2014.