Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.3 - Ground Water Rule › Section 2.3-2 - General requirements and applicability

Current through July 10, 2024
Authority: IC 13-13-5; IC 13-14-8-7; IC 13-14-9; IC
				  13-18-3-2; IC 13-18-16
Affected: IC 13-18-3-11; IC 13-18-17
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.