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Drinking Water Requirements for States and Public Water Systems
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Total Coliform Rule (TCR) Federal Register Notice

This document provides the FR notice to 40 CFR Parts 141 and 142 Drinking Water: National Primary Drinking Water Regulations; Total Coliforms (Including Fecal Coliforms and E. Coli); Final Rule (26 pp, 5 M). The purpose of the 1989 TCR is to protect public health by ensuring the integrity of the drinking water distribution system and monitoring for the presence of microbial contamination. 

  • National Primary Drinking Water Regulations Total Coliforms Final Rule (pdf) (June 29 1989)
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Last updated on December 8, 2021