PUBLIC LAW 104-182—AUG. 6, 1996
110 STAT. 1633
every 7 years, or upon receipt of a petition supported
by substantial information, review variance technologies
identified under this paragraph. The Administrator shall
issue revised guidance or regulations if new or innovative
variance technologies become available that meet the
requirements of this paragraph and achieve an equal or
greater reduction or inactivation efficiency than the variance technologies previously identified under this subparagraph. No public water system shall be required to replace
a variance technology during the useful life of the technology for the sole reason that a more efficient varisuice
technology has been listed under this subparagraph.",
(b) AVAILABILITY OF INFORMATION ON SMALL SYSTEM TECH-
NOLOGIES.— Section 1445 (42 U.S.C. 300J -4) is amended by adding
the following new subsection after subsection (g):
"(h) AVAILABILITY OF INFORMATION ON SMALL SYSTEM TECH-
NOLOGIES.— For purposes of sections 1412(b)(4)(E) and 1415(e)
(relating to small system variance program), the Administrator
may request information on the characteristics of commercially
available treatment systems and technologies, including the
effectiveness and performance of the systems and technologies
under various operating conditions. The Administrator may specify
the form, content, and submission date of information to be submitted by manufacturers, States, and other interested persons for
the purpose of considering the systems and technologies in the
development of regulations or guidance under sections 1412(b)(4)(E)
and 1415(e).".
SEC. 112. STATE PRIMACY.
(a) STATE PRIMARY ENFORCEMENT RESPONSIBILITY. — Section
1413 (42 U.S.C. 300g -2) is amended as follows:
(1) In subsection (a), by amending paragraph (1) to read
as follows:
"(1) has adopted drinking water regulations that are no
less stringent than the nation^ primary drinking water regulations promulgated by the Administrator under subsections (a)
and (b) of section 1412 not later than 2 years after the date
on which the regulations are promulgated by the Administrator,
except that the Administrator may provide for an extension
of not more than 2 years if, after submission and review of
appropriate, adequate documentation from the State, the
Administrator determines that the extension is necessary and
justified;".
(2) By adding at the end the following subsection:
"(c) INTERIM PRIMARY ENFORCEMENT AUTHORITY. —A State that
has primary enforcement authority under this section with respect
to each existing national primary drinking water regulation shall
be considered to have primary enforcement authority with respect
to each new or revised national primary drinking water regulation
during the period beginning on the effective date of a regulation
adopted and submitted by the State with respect to the new or
revised national primary drinking water regulation in accordance
with subsection (b)(1) and ending at such time as the Administrator
makes a determination under subsection (b)(2)(B) with respect to
the regulation.".
(b) EMERGENCY PLANS.-Section 1413(a)(5) (42 U.S.C. 300g -
2(a)(5)) is amended by inserting after "emergency circumstances"
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