{"data":{"id":"us/40-cfr-141.55","jurisdiction":"us","citation":"40 CFR 141.55","heading":"Maximum contaminant level goals for radionuclides.","body":"MCLGs for radionuclides are as indicated in the following table:\nContaminant MCLG\n1. Combined radium-226 and radium-228 Zero.\n2. Gross alpha particle activity (excluding radon and uranium) Zero.\n3. Beta particle and photon radioactivity Zero.\n4. Uranium Zero.","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":"f69566c4d535b92aeb897cc3a7d296c179d96d3473955b3a9706a1ba18cdd08b","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-141.54","next":"us/40-cfr-141.60"},"notice":"GroundRules: Original legal text. Not legal advice."}