UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                                                                                WSG8
                                                         Date Signed: December 20, 1976
MEMORANDUM

SUBJECT:   Application of the Safe Drinking Water Act to Persons
             Adding Corrosion Reducing Chemicals to Drinking Water

FROM:      Alan Levin, Director (signed by Alan Levin)
             State Programs Division
             Office of Water Supply (WH-550)

TO:          Water Division Directors
       Region IV requested an official interpretation of the applicability of the Safe Drinking
Water Act to persons using individual on-site corrosion control treatment of public water supplies.

       The attached opinion from the Office of General Counsel finds that a person (defined by
the SDWA to mean an individual, corporation, company, association, partnership, state or
municipality) which serves at least twenty-five individuals, and which adds a corrosion-reducing
chemical, or any chemical, to its drinking water supply, is a public water system which is not
exempt from regulations under the SDWA.
Attachment

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