{"data":{"id":"us/40-cfr-141.52","jurisdiction":"us","citation":"40 CFR 141.52","heading":"Maximum contaminant level goals for microbiological contaminants.","body":"(a) MCLGs for the following contaminants are as indicated:\nContaminant MCLG\n(1) Giardia lamblia zero\n(2) Viruses zero\n(3) Legionella zero\n(4) Total coliforms (including fecal) zero\ncoliforms and Escherichia coli\n(5) Cryptosporidium zero\n(6) Escherichia coli (E. coli) zero\n(b) The MCLG identified in paragraph (a)(4) of this section is applicable until March 31, 2016. The MCLG identified in paragraph (a)(6) of this section is applicable beginning April 1, 2016.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER D—WATER PROGRAMS","PART 141—NATIONAL PRIMARY DRINKING WATER REGULATIONS","Subpart F—Maximum Contaminant Level Goals and Maximum Residual Disinfectant Level Goals"],"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":"bbbe0a264e175defaf64fae3d1321087ab67de7e27b0d376cd338d6a7b65eeca","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-141.51","next":"us/40-cfr-141.53"},"notice":"GroundRules: Original legal text. Not legal advice."}