{"data":{"id":"us/40-cfr-142.63","jurisdiction":"us","citation":"40 CFR 142.63","heading":"Variances and exemptions from the maximum contaminant level for total coliforms.","body":"(a) No variances or exemptions from the maximum contaminant level in § 141.63 of this chapter are permitted.\n(b) EPA has stayed this section as it relates 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. This stay is applicable until March 31, 2016, at which time the total coliform MCL is no longer applicable.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER D—WATER PROGRAMS","PART 142—NATIONAL PRIMARY DRINKING WATER REGULATIONS IMPLEMENTATION","Subpart G—Identification of Best Technology, Treatment Techniques or Other Means Generally Available"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"5f582da85a919c4d4935467a6a780bdecaf665e5f9cdfa17558f18dd400f5d0d","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-142.62","next":"us/40-cfr-142.64"},"notice":"GroundRules: Original legal text. Not legal advice."}