"(16) NONCOMMUNITY WATER SYSTEM. - The term 'noncommunity water system' means a public water system that is not a community water system.".
(b) PUBLIC WATER SYSTEM. -
(1) IN GENERAL. - Section 1401(4) (42 U.S.C. 300f(4)) is amended as follows:
(A) In the first sentence, by striking "piped water for human consumption" and inserting "water for human consumption through pipes or other constructed conveyances".
(B) By redesignating subparagraphs (A) and (B) as clauses (I) and (ii), respectively.
(C) By striking "(4) The" and inserting the following:
"(4) PUBLIC WATER SYSTEM.
"(A) IN GENERAL. - The"; and
(D) by adding at the end the following:
"(B) CONNECTIONS. -
(2) GAO STUDY.-The Comptroller General of the United States shall undertake a study to -
"(i) IN GENERAL - For purposes of subparagraph (A), a connection to a system that delivers water by a constructed conveyance other than a pipe shall not be considered a connection, if -
"(C) TRANSITION PERIOD. - A water supplier that would be a public water system only as a result of modifications made to this paragraph by the Safe Drinking Water Act Amendments of 1996 shall not be considered a public water system for purposes of the Act until the date that is two years after the date of enactment of this subparagraph. If a water supplier does not serve 15 service connections (as defined in subparagraphs (A) and (B)) or 25 people at any time after the conclusion of the 2-year period, the water supplier shall not be considered a public water system.".
"(I) the water is used exclusively for purposes other than residential uses (consisting of drinking, bathing, and cooking, or other similar uses);
"(ii) IRRIGATION DISTRICTS. - An irrigation district in existence prior to May 18, 1994, that provides primarily agricultural service through a piped water system with only incidental residential or similar use shall not be considered to be a public water system if the system or the residential or similar users of the system comply with subclause (II) or (III) of clause (I).
"(II) the Administrator or the State (in the case of a State exercising primary enforcement responsibility for public water systems) determines that alternative water to achieve the equivalent level of public health protection provided by the applicable national primary drinking water regulation is provided for residential or similar uses for drinking and cooking; or
"(III) the Administrator or the State (in the case of a State exercising primary enforcement responsibility for public water systems) determines that the water provided for residential or similar uses for drinking, cooking, and bathing is centrally treated or treated at the point of entry by the provider, a pass-through entity, or the user to achieve the equivalent level of protection provided by the applicable national primary drinking water regulations.
(A) ascertain the numbers and locations of individuals and households relying for their residential water needs including drinking, bathing, and cooking (or other similar uses) on irrigation water systems, mining water systems, industrial water systems, or other water systems covered by section 1401(4)(B) of the Safe Drinking Water Act that are not public water systems subject to the Safe Drinking Water Act;
The Comptroller General shall submit a report to the Congress within 3 years after the date of enactment of this Act containing the results of such study.
(B) determine the sources and costs and affordability (to users and systems) of water used by such populations for their residential water needs; and
(C) review State and water system compliance with the exclusion provisions of section 1401(4)(B) of such Act.
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