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Current as of October 02, 2022 | Updated by FindLaw Staff
(a) A small system variance is not available under this subpart for a national primary drinking water regulation for a microbial contaminant (including a bacterium, virus, or other organism) or an indicator or treatment technique for a microbial contaminant.
(b) A small system variance under this subpart is otherwise only available for compliance with a requirement specifying a maximum contaminant level or treatment technique for a contaminant with respect to which;
(1) a national primary drinking water regulation was promulgated on or after January 1, 1986; and
(2) the Administrator has published a small system variance technology pursuant to Section 1412(b)(15) of the Act.
Note to paragraph (b)(1): Small system variances are not available for public water systems above the pre–1986 maximum contaminant level even if subsequently revised. If the Agency revises a pre–1986 maximum contaminant level and makes it more stringent, then a variance would be available for that contaminant, but only up to the pre–1986 maximum contaminant level.
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.142.304 For which of the regulatory requirements is a small system variance available? - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-142-304/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature or via Westlaw before relying on it for your legal needs.
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