reglab/statecodes huggingface dataset:
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.1 - Consumer Confidence Reports › Section 2.1-10 - Tier 3 public notice; form, manner, and frequency of notice

Current through July 10, 2024
Authority: IC 13-13-5; IC
				  13-14-8-2;
				  IC
				  13-14-8-7; IC
				  13-18-3-1; IC
				  13-18-3-2;
				  IC
				  13-18-16-8; IC
				  13-18-16-9
Affected: IC 13-18-2; IC 13-18-16
Sec. 10.
(a) The
				following violations or situations require a Tier 3 public notice:
(1) Monitoring violations under 327 IAC 8-2,
				except where:
(A) a Tier 1 notice is required
				under section 8 of this rule; or
(B) the commissioner determines that a Tier 2
				notice is required.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.1 - Consumer Confidence Reports › Section 2.1-11 - Contents of the public notice

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-13-5-2; IC 13-18-16-6; IC
				  13-18-16-7; IC 13-18-16-9
Affected: IC 13-18-16
Sec. 11.
(a) When a
				public water system violates a drinking water regulation or has a situation
				requiring public notification, each public notice must include the following
				elements:
(1) A description of the violation
				or situation, including the contaminant or contaminants of concern and the
				contaminant level or levels as applicable.
(2) When the violation or situation
				occurred.
(3) Any potential adverse
				health effects from the violation or situation, including the standard language
				under subsection (c)(1) or (c)(2), whichever is applicable.
(4) The population at risk, including
				subpopulations particularly vulnerable if exposed to the contaminant in their
				drinking water.
(5) Whether
				alternative water supplies should be used.
(6) What actions consumers should take,
				including when they should seek medical help, if known.
(7) What the system is doing to correct the
				violation or situation.
(8) When
				the water system expects to return to compliance or resolve the
				situation.
(9) The name, business
				address, and phone number of the water system owner, operator, or designee of
				the public water system as a source of additional information concerning the
				notice.
(10) A statement to
				encourage the notice recipient to distribute the public notice to other persons
				served, using the standard language under subsection (c)(3), where
				applicable.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.1 - Consumer Confidence Reports › Section 2.1-12 - Notice to new billing units or new customers

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-13-5-2; IC 13-18-16-6; IC
				  13-18-16-7; IC 13-18-16-9
Affected: IC 13-18-16
Sec. 12.
(a)
				Community water systems must give a copy of the most recent public notice for
				any continuing violation or other ongoing situations requiring a public notice
				to all new billing units or new customers prior to or at the time service
				begins.
(b) Noncommunity water
				systems must continuously post the public notice in conspicuous locations in
				order to inform new consumers of any continuing violation or other situation
				requiring a public notice for as long as the violation or other situation
				persists.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.1 - Consumer Confidence Reports › Section 2.1-14 - Special notice for nitrate exceedances above MCL by noncommunity water systems; granted permission by the commissioner under 327 IAC 8-2-4(b)

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-13-5-2; IC 13-18-16-6; IC
				  13-18-16-7; IC 13-18-16-9
Affected: IC 13-18-16
Sec. 14.
(a) The
				owner or operator of a noncommunity water system granted permission by the
				commissioner under
				327 IAC
				8-2-4(b)  to exceed the nitrate MCL
				must provide notice to persons served according to the requirements for a Tier
				1 notice under section 8 of this rule.
(b) Noncommunity water systems granted
				permission by the commissioner to exceed the nitrate MCL under
				327 IAC
				8-2-4(b)  must provide continuous
				posting of the:
(1) fact that nitrate levels
				exceed ten (10) milligrams per liter; and
(2) potential health effects of exposure;
in accordance with the requirements for Tier 1 notice
				  delivery under section 8 of this rule and the content requirements under
				  section 11 of this rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.1 - Consumer Confidence Reports › Section 2.1-14.5 - Special notice of the availability of unregulated contaminant monitoring results

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-13-5-2; IC 13-18-16-6; IC
				  13-18-16-7; IC 13-18-16-9
Affected: IC 13-18-16
Sec. 14.5.
(a) The
				owner or operator of a community water system or nontransient noncommunity
				water system required to monitor under
				40 CFR
				141.40 must notify persons served by the
				system of the availability of the results of the sampling not later than twelve
				(12) months after the monitoring results are known.
(b) The form and manner of the public notice
				must follow the requirements of the Tier 3 public notice described in section
				10 of this rule. The notice must also:
(1)
				identify a person; and
(2) provide
				the telephone number; to contact for information on the monitoring
				results.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.1 - Consumer Confidence Reports › Section 2.1-15 - Notice by the commissioner on behalf of the public water system

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-13-5-2; IC 13-18-16-6; IC
				  13-18-16-7; IC 13-18-16-9
Affected: IC 13-18-16
Sec. 15.
(a) The
				commissioner may give the notice required by sections 7 through 14 of this
				rule, this section, and sections 16 and 17 of this rule on behalf of the owner
				and operator of the public water system if the commissioner complies with this
				section.
(b) The owner or operator
				of the public water system remains responsible for ensuring that this section
				is met.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.1 - Consumer Confidence Reports › Section 2.1-18 - Special notice for repeated failure to conduct monitoring of the source water for Cryptosporidium and for failure to determine bin classification or mean Cryptosporidium level

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
Sec. 18.
(a) The
				owner or operator of a community or noncommunity PWS that is required to
				monitor source water under
				40 CFR
				141.701, as incorporated by reference in
				327
				IAC 8-2.6-8(b)(1), shall notify
				persons served by the water system that monitoring has not been completed, as
				specified. The notification must meet the following:
(1) Be provided not later than thirty (30)
				days after the PWS has failed to collect any three (3) months of monitoring, as
				specified in
				40 CFR
				141.701(c), as incorporated
				by reference in
				327
				IAC 8-2.6-8(b)(1).
(2) Be repeated as specified in section 9(b)
				of this rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.3 - Ground Water Rule › Section 2.3-1 - Definitions

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. 1.
In addition to the definitions included in
				  327 IAC 8-2-1, the
				  following definitions apply throughout this rule:
(1) "Ground water system" means any PWS that
				uses ground water except for a system that combines all of its ground water
				with:
(A) surface water; or
(B) ground water under the direct influence
				of surface water;
prior to treatment under Subpart H, including a consecutive
				  system receiving finished ground water.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.3 - Ground Water Rule › Section 2.3-3 - Sanitary surveys for ground water systems

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. 3.
A ground water system shall provide the commissioner, at the
				  commissioner's request, any existing information that will enable to
				  commissioner to conduct a sanitary survey required under
				  327 IAC
				  8-2-8.2.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.3 - Ground Water Rule › Section 2.3-4 - Ground water source microbial monitoring and analytical methods

Current through July 10, 2024
Authority: IC 13-13-5; IC
				  13-14-8-2;
				  IC
				  13-14-8-7; IC
				  13-18-3-1; IC
				  13-18-3-2;
				  IC
				  13-18-16-8; IC
				  13-18-16-9
Affected: IC 13-18-2; IC 13-18-16
Sec. 4.
(a) The
				following applies to triggered source water monitoring required under this
				rule:
(1) A PWS using ground water shall
				conduct triggered source water monitoring if the conditions identified in the
				following exist:
(A) The PWS using ground
				water does not provide at least 4-log treatment of viruses using:
(i) inactivation;
(ii) removal; or
(iii) a combination of 4-log virus
				inactivation and removal approved by the commissioner; before or at the first
				customer for each ground water source.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.3 - Ground Water Rule › Section 2.3-5 - Treatment technique requirements for ground water systems

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. 5.
(a) The
				following apply to a ground water system with significant deficiencies or
				source water fecal contamination:
(1) The
				treatment technique requirements of this section shall be met by a ground water
				system when a:
(A) significant deficiency is
				identified; or
(B) ground water
				source sample collected under section 4(a)(3) of this rule is fecal
				indicator-positive.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.3 - Ground Water Rule › Section 2.3-6 - Treatment technique violations for ground water systems

Current through July 10, 2024
Authority: IC 13-13-5; IC 13-14-8-7; IC 13-14-9; IC
				  13-18
Affected: IC 13-18-3-11; IC 13-18-17
Sec. 6.
(a) A ground
				water system with a significant deficiency is in violation of the treatment
				technique requirement if, within one hundred twenty (120) days (or earlier, if
				directed by the commissioner) of receiving written notice from the commissioner
				of the significant deficiency, the system:
(1) does not complete corrective action as
				required under section 5(a)(5)(A) of this rule in accordance with any
				applicable state plan review processes or other state guidance and direction,
				including interim actions and measures specified by the commissioner;
				or
(2) is not in compliance with a
				corrective action plan and schedule approved by the commissioner.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.3 - Ground Water Rule › Section 2.3-7 - Reporting and record keeping for the PWS using ground water

Current through July 10, 2024
Authority: IC 13-13-5; IC
				  13-14-8-2;
				  IC
				  13-14-8-7; IC
				  13-18-3-1; IC
				  13-18-3-2;
				  IC
				  13-18-16-8; IC
				  13-18-16-9
Affected: IC 13-18-2; IC 13-18-16
Sec. 7.
(a) In
				addition to the requirements of
				327
				IAC 8-2-13, a PWS using ground water regulated under
				this rule shall provide the following information to the commissioner:
(1) A PWS using ground water conducting
				compliance monitoring under section 5(b) of this rule shall notify the
				commissioner under the following circumstances:
(A) Any time the PWS using ground water fails
				to meet any of the following requirements specified by the commissioner:
(i) Minimum residual disinfectant
				concentration.
(ii) Membrane
				operating criteria or membrane integrity.
(iii) Alternative treatment operating
				criteria.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.4 - Revised Total Coliform Rule › Section 2.4-1 - Revised total coliform rule incorporated by reference

Current through July 10, 2024
Authority: IC 13-13-5; IC 13-14-8; IC 13-18-3; IC 13-18-16-8;
				  IC 13-18-16-9
Affected: IC 13-18-2; IC 13-18-16
Sec. 1.
(a) A
				reference to a provision of the Code of Federal Regulations (CFR) means the
				July 1, 2016, edition.
(b) 40 CFR
				141, Subpart Y* is incorporated by reference.
(c) If a requirement incorporated by
				reference in subsection (b) conflicts with or is inconsistent with a
				requirement in 327 IAC 8-2, 327 IAC 8-2.1, 327 IAC 8-2.3, or 327 IAC 8-2.5,
				then the requirement incorporated by reference in subsection (b)
				applies.
(d) When used in 40 CFR
				141, Subpart Y, as incorporated by reference under this rule, the following
				definitions apply:
(1) "Clean compliance
				history" means a record of none of the following:
(A) MCL violations under
				327
				IAC 8-2-7 and this rule.
(B) Monitoring violations under
				327
				IAC 8-2-8.3,
				327
				IAC 8-2-8.4, and this rule.
(C) Coliform treatment technique trigger
				exceedances or treatment technique violations under this rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-1 - Maximum residual disinfectant level goals; disinfectants

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 1.
MRDLGs for disinfectants are as follows:
Disinfectant Residual
MRDLG (mg/L)
Chlorine
4.0 (as Cl2)
Chloramines
4.0 (as Cl2)
Chlorine dioxide
0.8 (as ClO )
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-2 - Maximum contaminant levels; disinfection byproducts

Current through July 10, 2024
Authority: IC
				  13-13-5-1;
				  IC
				  13-14-8-2;
				  IC
				  13-14-8-7; IC
				  13-18-3-2
Affected: IC
				  13-12-3-1; IC
				  13-13-5-2;
				  IC 13-14-9; IC 13-18-11
Sec. 2.
(a) The MCLs
				for disinfection byproducts are as follows:
Disinfection Byproduct
MCL (mg/L)
TTHM
0.080
HAA5
0.060
Bromate
0.010
Chlorite
1.0
(1) Subpart H
				systems shall comply with this subsection according to the following:
(A) Beginning January 1, 2002, for a system
				serving ten thousand (10,000) or more persons.
(B) Beginning January 1, 2004, for systems
				serving fewer than ten thousand (10,000) persons and systems using only ground
				water not under the direct influence of surface water.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-3 - Maximum residual disinfectant levels

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 3.
(a) MRDLs are
				as follows:
Disinfectant Residual
MRDL (mg/L)
Chlorine
4.0 (as Cl2)
Chloramines
4.0 (as Cl2)
Chlorine dioxide
0.8 (as ClO2)
(b)
				The commissioner hereby identifies the following as the best technology,
				treatment techniques, or other means available for achieving compliance with
				the MRDLs identified in subsection (a):
(1)
				Control of treatment processes to reduce disinfectant demand.
(2) Control of disinfection treatment
				processes to reduce disinfectant levels.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-4 - General requirements; disinfectant residuals, disinfection byproducts, and disinfection byproducts precursors

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 4.
(a) The
				general requireme nts for disinfectant residuals, disinfection byproducts, and
				disinfection byproducts precursors are as follows:
(1) A CWS or an NTNCWS, which adds a chemical
				disinfectant to the water in any part of the drinking water treatment process,
				shall modify its practices to meet MCLs and MRDLs in sections 2(a) and 3(a) of
				this rule, respectively, and shall meet the treatment technique requirements
				for disinfection byproduct precursors in section 9 of this rule.
(2) A TWS that uses chlorine dioxide as a
				disinfectant or oxidant shall modify its practices to meet the MRDL for
				chlorine dioxide in section 3(a) of this rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-6 - Monitoring requirements; disinfectant residuals, disinfection byproducts, and disinfection byproducts precursors

Current through July 10, 2024
Authority: IC 13-13-5; IC
				  13-14-8-2;
				  IC
				  13-14-8-7; IC
				  13-18-3-1; IC
				  13-18-3-2;
				  IC
				  13-18-16-8; IC
				  13-18-16-9
Affected: IC
				  13-13-5-2;
				  IC 13-18-2; IC 13-18-11; IC 13-18-16
Sec. 6.
(a) General
				monitoring requirements for disinfectant residuals, disinfection byproducts,
				and disinfection byproducts precursors are as follows:
(1) A PWS shall take all samples during
				normal operating conditions.
(2) A
				PWS may consider multiple wells drawing water from a single aquifer as one (1)
				treatment plant for determining the minimum number of TTHM and HAA5 samples
				required. The commissioner shall approve all instances of multiple wells that
				are considered a single treatment plant because they draw water from a single
				aquifer.
(3) Failure to monitor:
(A) in accordance with the monitoring plan
				required under subsection (f) is a monitoring violation; and
(B) will be treated as a violation for the
				entire period covered by the annual average where compliance is based on a
				running annual average of monthly or quarterly samples or averages and the
				PWS's failure to monitor makes it impossible to determine compliance with MCLs
				or MRDLs.
(4) A PWS may
				use only data collected under the provisions of subsection (b) or 40 CFR
				141.140 through 40 CFR 141.144 * to qualify for reduced monitoring.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-7 - Compliance requirements; disinfectants and disinfection byproducts

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 7.
(a) General
				compliance requirements for disinfectants and disinfection byproducts are as
				follows:
(1) Where compliance is based on a
				running annual average of monthly or quarterly samples or averages and the:
(A) system fails to monitor for TTHM, HAA5,
				or bromate, this failure to monitor will be treated as a monitoring violation
				for the entire period covered by the annual average; and
(B) system's failure to monitor makes it
				impossible to determine compliance with MRDLs for chlorine and chloramines,
				this failure to monitor will be treated as a monitoring violation for the
				entire period covered by the annual average.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-8 - Reporting and record keeping requirements; disinfectants and disinfection byproducts

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 8.
(a) Systems
				required to sample:
(1) quarterly or more
				frequently shall report to the commissioner within ten (10) days after the end
				of each quarter in which samples were collected, notwithstanding the provisions
				of
				327
				IAC 8-2-13; and
(2) less frequently than quarterly report to
				the commissioner within ten (10) days after the end of each monitoring period
				in which samples were collected.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-10 - Initial distribution system evaluations

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
Sec. 10.
(a) 40 CFR
				141, Subpart U is incorporated by reference and consists of the following:
(1)
										40 CFR
				141.600, General requirements*.
(2)
										40 CFR
				141.601, Standard monitoring*.
(3)
										40 CFR
				141.602, System specific studies*.
(4)
										40 CFR
				141.603, 40 /30 certification*.
(5)
										40 CFR
				141.604, Very small system
				waivers*.
(6)
										40 CFR
				141.605, Subpart V, Compliance monitoring
				location recommendations*.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-11 - General requirements; stage 2 disinfection byproducts requirements

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
Sec. 11.
(a) The
				requirements of this section and sections 12 through 20 of this rule establish
				monitoring and other requirements for achieving compliance with the following:
(1) MCLs based on LRAA for the following:
(A) TTHM.
(B) HAA5.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-12 - Routine monitoring; stage 2 disinfection byproducts requirements

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
Sec. 12.
(a) The
				following are the routine monitoring requirements for a PWS to comply with
				section 11 of this rule, this section, and sections 13 through 20 of this rule:
(1) A PWS shall comply with monitoring
				location and schedule requirements as follows:
(A) If a PWS submitted an initial
				distribution system evaluation (IDSE) report as required under section 10 of
				this rule, the PWS shall:
(i) begin
				monitoring at the locations and months:
(AA)
				recommended in the IDSE report submitted under
				40 CFR
				141.605, as incorporated by reference in
				section 10(a)(6) of this rule; and
(BB) following the schedule in section 11(c)
				of this rule; or
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-13 - Monitoring plan; stage 2 disinfection byproducts requirements

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
Sec. 13.
(a) The
				following are PWS requirements for completion of a monitoring plan under
				sections 11 and 12 of this rule, this section, and sections 14 through 20 of
				this rule:
(1) A PWS shall develop and
				implement a monitoring plan to be kept on file at the system for review by the
				commissioner and the public. The monitoring plan must be completed not later
				than the date initial monitoring is conducted under sections 11 and 12 of this
				rule, this section, and sections 14 through 20 of this rule, and it must
				contain the following elements:
(A)
				Monitoring locations.
(B)
				Monitoring dates.
(C) Compliance
				calculation procedures.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-14 - Reduced monitoring; stage 2 disinfection byproducts requirements

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
Sec. 14.
(a) A PWS
				may reduce monitoring for stage 2 disinfection byproducts to the monitoring
				frequency specified in the following table if the following are met:
(1) The following analytical results:
(A) The LRAA is:
(i) less than or equal to forty-thousandths
				(0.040) milligrams per liter (mg/L) for TTHM; and
(ii) less than or equal to thirty-thousandths
				(0.030) mg/L for HAA5; at all monitoring locations.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-15 - Additional requirements for consecutive systems; stage 2 disinfection byproducts requirements

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
Sec. 15.
A consecutive PWS that does not add a disinfectant but
				  delivers water that has been treated with a primary or residual disinfectant
				  other than ultraviolet light shall:
(1) comply with:
(i) analytical and monitoring requirements
				for chlorine and chloramines in section 5(c) of this rule; and
(ii) the requirements in section 6(c)(1) of
				this rule; beginning April 1, 2009, unless required to comply at an earlier
				date by the commissioner; and
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-16 - Conditions requiring increased monitoring; stage 2 disinfection byproducts requirements

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
Sec. 16.
(a) A PWS
				that is required to monitor at a particular location annually or less
				frequently than annually under section 12 or 14 of this rule shall increase
				monitoring to dual sample sets once per quarter (taken every ninety (90) days)
				at all locations if one (1) or both of the following occur:
(1) TTHM sample is greater than
				eighty-thousandths (0.080) milligrams per liter (mg/L).
(2) HAA5 sample is greater than
				sixty-thousandths (0.060) mg/L at any location.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-17 - Operational evaluation levels; stage 2 disinfection byproducts requirements

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
Sec. 17.
(a) A PWS
				has exceeded the operational evaluation level at any monitoring location when
				one (1) or both of the following occur:
(1)
				The sum of the two (2) previous quarters' TTHM results plus twice the current
				quarter's TTHM result, divided by four (4) to determine an average, exceeds
				eighty-thousandths (0.080) milligrams per liter (mg/L).
(2) The sum of the two (2) previous quarters'
				HAA5 results plus twice the current quarter's HAA5 result, divided by four (4)
				to determine an average, exceeds sixty-thousandths (0.060) mg/L.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-18 - Requirements for remaining on reduced TTHM and HAA5 monitoring based on Subpart L requirements: stage 2 disinfection byproducts requirements

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
Sec. 18.
A PWS on reduced monitoring shall comply with the
				  following:
(1) The PWS may remain on
				reduced monitoring after the dates identified in section 11(c) of this rule for
				compliance with sections 11 through 17 of this rule, this section, and sections
				19 and 20 of this rule only if the PWS:
(A)
				qualifies for a 40/30 certification under
				40 CFR
				141.603, as incorporated by reference in
				section 10(a)(4) of this rule; or
(B) has received a very small system waiver
				under
				40 CFR
				141.604, as incorporated by reference in
				section 10(a)(5) of this rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-19 - Requirements for remaining on increased TTHM and HAA5 monitoring based on Subpart L requirements; stage 2 disinfection byproducts requirements

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
Sec. 19.
A PWS on increased monitoring shall comply with the
				  following:
(1) If a PWS was on
				increased monitoring under section 6(b)(1) of this rule, the PWS shall remain
				on increased monitoring until the PWS qualifies for a return to routine
				monitoring under section 16(c) of this rule.
(2) A PWS shall:
(A) conduct increased monitoring under
				section 16 of this rule at the locations in the monitoring plan developed under
				section 13 of this rule beginning at the date identified in section 11(c) of
				this rule for compliance with sections 11 through 18 of this rule, this
				section, and section 20 of this rule; and
(B) remain on increased monitoring until the
				PWS qualifies for a return to routine monitoring under section 16(c) of this
				rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.5 - Disinfectants and Disinfection › Section 2.5-20 - Reporting and record keeping requirements; stage 2 disinfection byproducts requirements

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
Sec. 20.
(a) The
				following are the reporting requirements for the TTHM and HAA5 monitoring under
				this rule:
(1) A PWS shall report the
				following information for each monitoring location to the commissioner within
				ten (10) days after the end of any quarter in which monitoring is required:
(A) The number of samples taken during the
				last quarter.
(B) The date and
				results of each sample taken during the last quarter.
(C) LRAA calculations including the following
				information:
(i) The arithmetic average of
				quarterly results for the last four (4) quarters for each monitoring location,
				beginning at the end of the fourth calendar quarter that follows the compliance
				date and at the end of each subsequent quarter.
(ii) If the LRAA, calculated based on fewer
				than four (4) quarters of data, would cause the MCL to be exceeded regardless
				of the monitoring results of subsequent quarters, the PWS shall report this
				information to the commissioner as part of the first report due following the
				compliance date or anytime thereafter that this determination is
				made.
(iii) If a PWS is required to
				conduct monitoring at a frequency that is less than quarterly, the PWS shall
				make compliance calculations beginning with the first compliance sample taken
				after the compliance date, unless the PWS is required to conduct increased
				monitoring under section 16 of this rule.
(D) Whether, based on sections 2(b)(1) and 11
				through 19 of this rule and this section, the MCL was violated at any
				monitoring location.
(E) Any
				operational evaluation levels that were exceeded during the quarter, including
				the following information:
(i) The
				location.
(ii) The date.
(iii) The calculated TTHM and HAA5
				levels.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-1 - General requirements; enhanced filtration and disinfection

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 1.
(a) Upon the
				effective date of this rule, unless otherwise specified in this section, all
				Subpart H systems serving a population of at least ten thousand (10,000)
				individuals and, beginning January 1, 2005, systems serving a population of
				fewer than ten thousand (10,000) individuals shall establish treatment
				technique requirements instead of MCLs for the following contaminants:
(1) Giardia lamblia.
(2) Viruses.
(3) Heterotrophic plate count
				bacteria.
(4) Legionella.
(5) Cryptosporidium.
(6) Turbidity.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-2 - Disinfection profiling and benchmarking for systems serving a population of at least 10,000 individuals

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 2.
(a) A public
				water system subject to this section will determine its TTHM annual average
				using the procedure in subdivision (1) and its HAA5 annual average using the
				procedure in subdivision (2). The annual average is the arithmetic average of
				the quarterly averages of four (4) consecutive quarters of monitoring. A public
				water system subject to this section shall meet the following monitoring
				requirements to determine its TTHM annual average and its HAA5 annual average:
(1) The TTHM annual average must be the
				annual average during the same period as is used for the HAA5 annual average.
				Those Subpart H systems serving a population of at least ten thousand (10,000)
				individuals that:
(A) collected data under 40
				CFR 141 * must use the results of the samples collected during the last four
				(4) quarters of required monitoring under 40 CFR 141.142 *;
(B) use grandfathered HAA5 occurrence data
				that meet the provisions of subdivision (2)(B) must use the TTHM data collected
				at the same time under
				327
				IAC 8-2-5(a)  and
				327
				IAC 8-2-5.3; and
(C) use HAA5 occurrence data that meet the
				provisions of subdivision (2)(C)(i) must use the TTHM data collected at the
				same time under
				327
				IAC 8-2-5(a)  and
				327
				IAC 8-2-5.3.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-2.1 - Disinfection profiling and benchmarking for systems serving a population of fewer than 10,000 individuals beginning January 1, 2005

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-7; IC 13-18-3-1; IC
				  13-18-3-2; IC 13-18-6
Affected: IC 13-14-9
Sec. 2.1.
(a) A
				disinfection profile is a graphical representation of a system's level of
				Giardia lamblia or virus inactivation measured during the course of a year.
				Beginning January 1, 2005, Subpart H systems serving a population of fewer than
				ten thousand (10,000) individuals must develop a disinfection profile unless
				the commissioner determines that the system's profile is unnecessary. The
				commissioner may approve the use of a more representative data set for
				disinfection profiling than the data set required under subsection
				(c).
(b) The commissioner may only
				determine that a system's profile is unnecessary if a system's TTHM and HAA5
				levels are below sixty-four thousandths (0.064) mg/l and forty-eight
				thousandths (0.048) mg/l, respectively. To determine these levels, TTHM and
				HAA5 samples must be collected after January 1, 1998, during the month with the
				warmest water temperature and at the point of maximum residence time in a
				system's distribution system.
(c)
				Disinfection profiling requirements are as follows:
(1) A disinfection profile consists of three
				(3) steps:
(A) Subpart H systems serving a
				population of fewer than ten thousand (10,000) individuals must collect data
				for several parameters from the plant over the course of twelve (12) months
				according to subdivision (2). If the system serves more than five hundred (500)
				and fewer than ten thousand (10,000) individuals, the system must begin to
				collect data no later than July 1, 2003. If the system serves fewer than five
				hundred (500) individuals, the system must begin to collect data no later than
				January 1, 2004.
(B) The system
				must use this data to calculate weekly log inactivation according to
				subdivisions (3) and (4).
(C) The
				system must use these weekly log inactivations to develop a disinfection
				profile as specified in subdivisions (5) through (8).
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-3 - Enhanced filtration

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 3.
By December 31, 2001, Subpart H systems serving a population
				  of at least ten thousand (10,000) individuals and, beginning January 1, 2005,
				  Subpart H systems serving a population of fewer than ten thousand (10,000)
				  individuals shall provide treatment consisting of both disinfection, as
				  specified in
				  327 IAC
				  8-2-8.6, and filtration treatment that complies with
				  the following:
(1) Requirements for
				systems using conventional filtration or direct filtration are as follows:
(A) For Subpart H systems using conventional
				filtration or direct filtration, the turbidity level of representative samples
				of the system's filtered water must be less than or equal to three-tenths (0.3)
				nephelometric turbidity unit in at least ninety-five percent (95%) of the
				measurements taken each month, measured as specified in
				327
				IAC 8-2-8.7 and
				327
				IAC 8-2-8.8.
(B) The turbidity level of representative
				samples of the system's filtered water must at no time exceed one (1)
				nephelometric turbidity unit, measured as specified in
				327
				IAC 8-2-8.7 and
				327
				IAC 8-2-8.8.
(C) A system that uses lime softening may
				acidify representative samples prior to analysis using a protocol approved by
				the commissioner.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-4 - Filtration sampling requirements

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 4.
(a) In
				addition to monitoring required by
				327
				IAC 8-2-8.8, a Subpart H system serving a population
				of at least ten thousand (10,000) individuals and, beginning January 1, 2005, a
				Subpart H system serving a population of fewer than ten thousand (10,000)
				individuals that provides conventional filtration treatment or direct
				filtration shall comply with the following:
(1) Conduct continuous monitoring of
				turbidity for each individual filter using an approved method in
				327
				IAC 8-2-8.7.
(2) Calibrate turbidimeters using the
				procedure specified by the manufacturer.
(3) Record the results of individual filter
				monitoring every fifteen (15) minutes.
(4) Monthly reporting must be completed and
				records must be maintained according to section 5 of this rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-5 - Enhanced filtration and disinfection reporting and record keeping requirements

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 5.
Beginning January 1, 2002, a Subpart H system serving a
				  population of at least ten thousand (10,000) individuals and, beginning January
				  1, 2005, a Subpart H system serving a population of fewer than ten thousand
				  (10,000) individuals that are subject to the requirements of section 3 of this
				  rule and provide conventional filtration treatment or direct filtration shall
				  meet the following requirements in addition to the reporting and record keeping
				  requirements in
				  327
				  IAC 8-2-14:
(1) Turbidity measurements as required by
				section 3 of this rule must be reported within ten (10) days after the end of
				each month the system serves water to the public. Information that must be
				reported includes the following:
(A) The
				total number of filtered water turbidity measurements taken during the
				month.
(B) The number and
				percentage of filtered water turbidity measurements taken during the month that
				are less than or equal to the turbidity limits specified in section 3 of this
				rule.
(C) The date and value of any
				turbidity measurements taken during the month that exceed:
(i) one and zero-tenths (1.0) nephelometric
				turbidity unit for systems using conventional filtration treatment or direct
				filtration; or
(ii) the maximum
				level set by the commissioner under section 3 of this rule. This reporting
				requirement is instead of the reporting specified in
				327
				IAC 8-2-14(b).
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-6 - Filter backwash

Current through July 10, 2024
Authority: IC 13-13-5-1; IC 13-14-8-2; IC 13-14-8-7; IC
				  13-18-3-2
Affected: IC 13-12-3-1; IC 13-13-5-2; IC 13-14-9; IC
				  13-18-11
Sec. 6.
All subpart H systems that employ conventional filtration or
				  direct filtration treatment and recycle spent filter backwash water, thickener
				  supernatant, or liquids from dewatering processes shall meet the following
				  requirements:
(1) A system shall
				notify the commissioner in writing by December 8, 2003, if the system recycles
				spent filter backwash water, thickener supernatant, or liquids from dewatering
				processes. This notification shall include, at a minimum, the following
				information:
(A) A plant schematic showing
				the following:
(i) The origin of all flows
				that are recycled, including, but not limited to, spent filter backwash water,
				thickener supernatant, and liquids from dewatering processes.
(ii) The hydraulic conveyance used to
				transport all flows that are recycled, including spent filter backwash water,
				thickener supernatant, and liquids from dewatering processes.
(iii) The location where all flows that are
				recycled, including spent filter backwash water, thickener supernatant, and
				liquids from dewatering processes, are reintroduced back into the treatment
				plant.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-7 - General requirements; enhanced treatment for Cryptosporidium

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
Sec. 7.
(a) The
				requirements of this section and sections 8 through 22 of this rule establish
				or extend treatment technique requirements in lieu of MCLs for Cryptosporidium.
				These requirements are in addition to requirements for filtration and
				disinfection under the following:
(1)
										327 IAC
				8-2-8.5.
(2)
										327 IAC
				8-2-8.6.
(3)
										327
				IAC 8-2-8.7.
(4)
										327
				IAC 8-2-8.8.
(5)
										327
				IAC 8-2-14.
(6) Sections 1 through 5 of this
				rule.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-8 - Source water monitoring requirements; enhanced treatment for Cryptosporidium

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
Sec. 8.
(a) 40 CFR
				141, Subpart W, for source water monitoring requirements, is incorporated by
				reference and consists of the following:
(1)
										40 CFR
				141.701, Source water monitoring*.
(2)
										40 CFR
				141.702, Sampling schedules*.
(3)
										40 CFR
				141.703, Sampling locations*.
(4)
										40 CFR
				141.704, Analytical methods*.
(5)
										40 CFR
				141.705, Approved laboratories*.
(6)
										40 CFR
				141.706, Reporting source water monitoring
				results*.
(7)
										40 CFR
				141.707, Grandfathering previously collected
				data*.
Indiana Administrative Code › Title 327 - WATER POLLUTION CONTROL DIVISION › Article 8 - PUBLIC WATER SUPPLY › Rule 2.6 - Enhanced Filtration and Disinfection › Section 2.6-9 - Requirements when making a significant change in disinfection practice; disinfection profiling and benchmarking requirements; enhanced treatment for Cryptosporidium

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
Sec. 9.
(a) Following
				the completion of initial source water monitoring under
				40 CFR
				141.701(a), as incorporated
				by reference in section 8(a)(1) of this rule, a PWS that plans to make a
				significant change to its disinfection practice, as defined in subsection (b),
				shall do the following:
(1) Develop
				disinfection profiles and calculate disinfection benchmarks for Giardia lamblia
				and viruses as described in section 10 of this rule.
(2) Notify the commissioner prior to changing
				the disinfection practice and include in this notice the following information:
(A) A completed disinfection profile and
				disinfection benchmark for Giardia lamblia and viruses as described in section
				10 of this rule.
(B) A description
				of the proposed change in disinfection practice.
(C) An analysis of how the proposed change
				will affect the current level of disinfection.