Variances and exemptions from the maximum contaminant level for total coliforms.
(a) No variances or exemptions from the maximum contaminant level in § 141.63 of this chapter are permitted.
(b) EPA has stayed the effective date of this section relating to the total coliform MCL of § 141.63(a) of this chapter for systems that demonstrate to the State that the violation of the total coliform MCL is due to a persistent growth of total coliforms in the distribution system rather than fecal or pathogenic contamination, a treatment lapse or deficiency, or a problem in the operation or maintenance of the distribution system.
[54 FR 27568, June 29, 1989, as amended at 56 FR 1557, Jan. 15, 1991]
Title 40 published on 2012-07-01
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