1672
PUBLIC LAW 93-523-DEC. 16, 1974
[88 STAT.
a EXEMFriONS
42 USC 3oog-5.
Notice and hearing.
"gpc. 1416. (a) A State which has primary enforcement responsibility may exempt any public water system within the State's jurisdiction from any requirement respecting a maximum contaminant level or any treatment technique requirement, or from both, of an applicable national primary drinking water regulation upon a finding that— "(1) due to compelling factors (which may include economic factors), the public water system is unable to comply with such contaminant level or treatment technique requirement, "(2) the public water system was in operation on the effective date of such contaminant level or treatment technique requirement, and "(3) the granting of the exemption will not result in an unreasonable risk to health. " (b)(1) If a State grants a public water system an exemption vmder subsection (a), the State shall prescribe, within one year of the date the exemption is granted, a schedule for— " (A) compliance (including increments of progress) by the public water system with each containment level requirement and treatment technique requirement with respect to which the exemption was granted, and " (B) implementation by the public water system of such control measures as the State may require for each containment, subject to such contaminant level requirement or treatment technique requirement, during the period ending on the date compliance with such requirement is required. Before a schedule prescribed by a State pursuant to this subsection may take effect, the State shall provide notice and opportunity for a public hearing on the schedule. A notice given pursuant to the preceding sentence may cover the prescribing of more than one such schedule and a hearing held pursuant to such notice shall include each of the schedules covered by the notice. "(2)(A) A schedule prescribed pursuant to this subsection for a public water system granted an exemption under subsection (a) shall require compliance by the system with each contaminant level and treatment technique requirement with respect to which the exemption was granted as expeditiously as practicable (as the State may reasonably determine) but (except as provided in subparagraph (B)) — "(i) in the case of an exemption granted with respect to a contaminant level or treatment technique requirement prescribed by the interim national primary drinking water regulations promulgated under section 1412(a), not later than January 1, 1981; and "(ii) in the case of an exemption granted with respect to a contaminant level or treatment technique requirement prescribed by revised national primary drinking water regulations, not later than seven years after the date such requirement takes effect. " (B) Notwithstanding clauses (i) and (ii) of subparagraph (A) of this paragraph, the final date for compliance prescribed in a schedule prescribed pursuant to this subsection for an exemption granted for a public water system which (as determined by the State granting the exemption) has entered into an enforceable agreement to become a part of a regional public water system shall— " (i) in the case of a schedule prescribed for an exemption granted with respect to a contaminant level or treatment technique requirement prescribed by interim national primary drinking water regulations, be not later than January 1, 1083; and
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