National Primary Drinking Water Regulations

Along with the regulatory development, EPA prepares criteria documents which provide technical support for the final rules. These criteria documents identify fundamental information regarding health effects of contaminants in drinking water. Health-effects-related data such as physical and chemical properties, toxicokinetics, human exposure, health effects in animals and humans, mechanisms of toxicity, and quantification of toxicological effects are evaluated and serve as supporting documentation for the MCLGs.  

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Code of Federal Regulations, Tide 40, Part 141, National Primary Drinking Water Regulations, Washington, D.C., 1995. 

A National Primary Drinking Water Regulation (NPDWR or primary standard) is a legally-enforceable standard that applies to public water systems. Primary standards protect drinking water quality by limiting the levels of specific contaminants that can adversely affect public health and are known or anticipated to occur in water. They take the form of Maximum Contaminant Levels (MCL) or Treatment Techniques (TT). 

NPDWR National Primary Drinking Water Regulations... 

EPA. 1985d. National primary drinking water regulations volatile synthetic organic chemicals. Federal Register 50 46902. 

EPA. 1989. National primary drinking water regulations. U.S. Environmental Protection Agency. Code of Federal Regulations. 40 CFR 141,142,143. 

National Primary Drinking Water Regulations Definitions Yes 40 CFR 141.2 EPA 1975... 

National Primary Drinking Water Regulations Implementation Records and reports kept by States Yes 40 CFR 142.14-142.15 EPA 1976c... 

EPA. 1991d. Maximum contaminant level goals and national primary drinking water regulations for lead and copper. Federal Register 56 26461-26564. 

National Primary Drinking Water Regulations Inorganic Chemical Sampling and Analytical Requirements Yes 40CFR 141.23 EPA 1991a... 

US EPA (1991) National Primary Drinking Water Regulations Federal Register, Part 12, 40 CFR Part 141, US EPA, Washington, 1 July... 

Purified water is water obtained by a suitable process. It is prepared from water complying with the U.S. Environmental Protection Agency National Primary Drinking Water Regulations or comparable regulations of the European Union or Japan. It contains no added substances. 

U.S. EPA (Environmental Protection Agency). 1995. National Primary Drinking Water Regulations CFR 40 Parts 141-143. 

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