30 CFR § 71.601
Drinking water; quality
July 29, 2020
(a) Potable water provided in accordance with the provisions of §71.600 shall meet the applicable minimum health requirements for drinking water established by the State or community in which the mine is located.
(b) Where no such requirements are applicable, the drinking water provided shall conform to the Public Health Service Drinking Water Standards, 42 CFR part 72, subpart J.