Sec. 2.
(a) This rule
applies to ground water systems as defined under section 1 of this rule. Ground
water systems shall comply with this rule, unless otherwise noted, beginning
December 1, 2009.
(b) A ground
water system subject to this rule shall comply with the following:
(1) Sanitary survey requirements for all
ground water systems as described under
327 IAC
8-2-8.2.
(2) Microbial source water monitoring
requirements for ground water systems that do not treat all of their ground
water to at least ninety-nine and ninety-nine hundredths percent (99.99%)
(4-log) treatment of viruses using:
(A)
inactivation;
(B) removal;
or
(C) a combination of 4-log virus
inactivation and removal approved by the commissioner; before or at the first
customer as described in section 3 of this rule.
(3) Treatment technique requirements
described under section 5 of this rule that must be implemented as follows:
(A) By a ground water system that has one (1)
or both of the following:
(i) Fecally
contaminated source waters, as determined by source water monitoring conducted
under section 4 of this rule.
(ii)
Significant deficiencies that are identified by the commissioner during a
sanitary survey in accordance with
327 IAC
8-2-8.2.
(B) A ground water system subject under
clause (A) to the treatment technique requirements under section 5 of this rule
shall implement one (1) or more of the following corrective action options:
(i) Correct all significant
deficiencies.
(ii) Provide an
alternate source of water.
(iii)
Eliminate the source of contamination.
(iv) Provide treatment that reliably achieves
at least 4-log treatment of viruses using:
(AA) inactivation;
(BB) removal; or
(CC) a combination of 4-log virus
inactivation and removal approved by the commissioner; before or at the first
customer.
(4) A ground water system that provides at
least 4-log treatment of viruses using:
(A)
inactivation;
(B) removal;
or
(C) a combination of 4-log virus
inactivation and removal approved by the commissioner;
before or at the first customer is required to conduct
compliance monitoring to demonstrate treatment effectiveness, as described
under section 5(b) of this rule.
(5) If requested by the commissioner, a
ground water system shall provide the commissioner with any existing
information that will enable the commissioner to perform a hydrogeologic
sensitivity assessment.
(6) A
ground water PWS subject to this rule shall have a smooth-nosed sampling tap
that meets the following:
(A) Has no interior
or exterior threads available for sample collection.
(B) Is located:
(i) at a point prior to any treatment or
storage for each ground water source; and
(ii) in such a manner that it:
(AA) prevents contamination of the tap;
and
(BB) facilitates sampling, when
necessary.
Other tap installations may be approved by the commissioner
on a case-by-case basis if the ground water system submits a written request to
the commissioner and receives a written approval from the
commissioner.
