[Code of Federal Regulations]
[Title 40, Volume 22]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR142.2]

[Page 621-622]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 142_NATIONAL PRIMARY DRINKING WATER REGULATIONS IMPLEMENTATION--Table of 
 
                      Subpart A_General Provisions
 
Sec. 142.2  Definitions.

    As used in this part, and except as otherwise specifically provided:
    Act means the Public Health Service Act.
    Administrator means the Administrator of the United States 
Environmental Protection Agency or his authorized representative.
    Agency means the United States Environmental Protection Agency.
    Approved State primacy program consists of those program elements 
listed in Sec. 142.11(a) that were submitted with the initial State 
application for primary enforcement authority and approved by the EPA 
Administrator and all State program revisions thereafter that were 
approved by the EPA Administrator.
    Contaminant means any physical, chemical, biological, or 
radiological substance or matter in water.
    Federal agency means any department, agency, or instrumentality of 
the United States.
    Indian Tribe means any Indian Tribe having a Federally recognized 
governing body carrying out substantial governmental duties and powers 
over a defined area.
    Interstate Agency means an agency of two or more States established 
by or under an agreement or compact approved by the Congress, or any 
other agency of two or more States or Indian Tribes having substantial 
powers or duties pertaining to the control of pollution as determined 
and approved by the Administrator.
    Maximum contaminant level means the maximum permissible level of a 
contaminant in water which is delivered to the free flowing outlet of 
the ultimate user of a public water system; except in the case of 
turbidity where the maximum permissible level is measured at the point 
of entry to the distribution system. Contaminants added to the water 
under circumstances controlled by the user, except for those resulting 
from corrosion of piping and plumbing caused by water quality are 
excluded from this definition.
    Municipality means a city, town, or other public body created by or 
pursuant to State law, or an Indian Tribe which does not meet the 
requirements of subpart H of this part.
    National primary drinking water regulation means any primary 
drinking water regulation contained in part 141 of this chapter.
    Person means an individual; corporation; company; association; 
partnership; municipality; or State, federal, or Tribal agency.
    Primary enforcement responsibility means the primary responsibility 
for administration and enforcement of primary drinking water regulations 
and related requirements applicable to public water systems within a 
State.
    Public water system or PWS means a system for the provision to the 
public of water for human consumption through pipes or, after August 5, 
1998, other constructed conveyances, if such system has at least fifteen 
service connections or regularly serves an average of at least twenty-
five individuals daily at least 60 days out of the year. Such term 
includes:
    Any collection, treatment, storage, and distribution facilities 
under control of the operator of such system and used primarily in 
connection with such system; and any collection or pretreatment storage 
facilities not under such control which are used primarily in connection 
with such system. Such term does not include any ``special irrigation 
district.'' A public water system is either a ``community water system'' 
or a ``noncommunity water system'' as defined in Sec. 141.2.
    Sanitary survey means an onsite review of the water source, 
facilities, equipment, operation and maintenance of a public water 
system for the purpose of evaluating the adequacy of such source, 
facilities, equipment, operation and maintenance for producing and 
distributing safe drinking water.
    Service connection, as used in the definition of public water 
system, does not include a connection to a system that delivers water by 
a constructed conveyance other than a pipe if:
    (1) The water is used exclusively for purposes other than 
residential uses (consisting of drinking, bathing, and cooking, or other 
similar uses);
    (2) The Administrator or the State exercising primary enforcement 
responsibility for public water systems, determines that alternative 
water to achieve the equivalent level of public

[[Page 622]]

health protection provided by the applicable national primary drinking 
water regulation is provided for residential or similar uses for 
drinking and cooking; or
    (3) The Administrator or the 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.
    Special irrigation district means 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 where the system or the residential or similar users of the 
system comply with the exclusion provisions in section 1401(4)(B)(i)(II) 
or (III).
    State means one of the States of the United States, the District of 
Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, Guam, 
American Samoa, the Commonwealth of the Northern Mariana Islands, the 
Trust Territory of the Pacific Islands, or an eligible Indian tribe.
    State primary drinking water regulation means a drinking water 
regulation of a State which is comparable to a national primary drinking 
water regulation.
    State program revision means a change in an approved State primacy 
program.
    Supplier of water means any person who owns or operates a public 
water system.
    Treatment technique requirement means a requirement of the national 
primary drinking water regulations which specifies for a contaminant a 
specific treatment technique(s) known to the Administrator which leads 
to a reduction in the level of such contaminant sufficient to comply 
with the requirements of part 141 of this chapter.

[41 FR 2918, Jan. 20, 1976, as amended at 53 FR 37410, Sept. 26, 1988; 
54 FR 52137, Dec. 20, 1989; 59 FR 64344, Dec. 14, 1994; 63 FR 23367, 
Apr. 28, 1998]