reglab/statecodes huggingface dataset:
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1007 - Source Water Monitoring Requirements: Grandfathering Previously Collected Data

Current through Register Vol. 48, No. 28, July 12, 2024
a) Initial
				Source Monitoring and Cryptosporidium Samples
1) A supplier may comply with the initial
				source water monitoring requirements of Section
				611.1001(a)
				by grandfathering sample results collected before the supplier is required to
				begin monitoring (i.e., previously collected data). To be grandfathered, the
				sample results and analysis must meet the criteria in this Section and the
				Agency must approve the use of the data by a SEP.
2) A filtered system supplier may grandfather
				Cryptosporidium samples to meet the requirements of Section
				611.1001(a)
				when the supplier does not have corresponding E. coli and turbidity samples. A
				supplier that grandfathers Cryptosporidium samples without E. coli and
				turbidity samples is not required to collect E. coli and turbidity samples when
				it completes the requirements for Cryptosporidium monitoring under Section
				611.1001(a).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1008 - Disinfection Profiling and Benchmarking Requirements: Requirements When Making a Significant Change in Disinfection Practice

Current through Register Vol. 48, No. 28, July 12, 2024
a) Following the completion of initial source
				water monitoring under Section
				611.1001(a),
				a supplier that plans to make a significant change to its disinfection
				practice, as defined in subsection (b), must develop disinfection profiles and
				calculate disinfection benchmarks for Giardia lamblia and viruses, as described
				in Section
				611.1009.
				Prior to changing the disinfection practice, the supplier must notify the
				Agency, and it must include in this notice the following information:
1) A completed disinfection profile and
				disinfection benchmark for Giardia lamblia and viruses, as described in Section
				611.1009;
2) A description of the
				proposed change in disinfection practice; and
3) An analysis of how the proposed change
				will affect the current level of disinfection.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1009 - Disinfection Profiling and Benchmarking Requirements: Developing the Disinfection Profile and Benchmark

Current through Register Vol. 48, No. 28, July 12, 2024
a) A
				supplier required to develop disinfection profiles under Section
				611.1008
				must follow the requirements of this Section. The supplier must monitor at
				least weekly for a period of 12 consecutive months to determine the total log
				inactivation for Giardia lamblia and viruses. If the supplier monitors more
				frequently than weekly, the monitoring frequency must be evenly spaced. A
				supplier that operates for fewer than 12 months per year must monitor weekly
				during the period of operation. A supplier must determine log inactivation for
				Giardia lamblia through the entire plant, based on the applicable
				CT99.9 values in Appendix B. A supplier must determine
				log inactivation for viruses through the entire treatment plant based on a
				protocol approved by the Agency by a SEP.
b) A supplier with a single point of
				disinfectant application prior to the entrance to the distribution system must
				conduct the monitoring in subsections (b)(1) through (b)(4). A supplier with
				more than one point of disinfectant application must conduct the monitoring in
				subsections (b)(1) through (b)(4) for each disinfection segment. A supplier
				must monitor the parameters necessary to determine the total inactivation
				ratio, using analytical methods in Section
				611.531.
1) For a supplier using a disinfectant other
				than UV, the temperature of the disinfected water must be measured at each
				residual disinfectant concentration sampling point during peak hourly flow or
				at an alternative location approved by the Agency by a SEP.
2) For a supplier using chlorine, the pH of
				the disinfected water must be measured at each chlorine residual disinfectant
				concentration sampling point during peak hourly flow or at an alternative
				location approved by the Agency by a SEP.
3) The disinfectant contact times (t) must be
				determined during peak hourly flow.
4) The residual disinfectant concentrations
				(C) of the water before or at the first customer and prior to each additional
				point of disinfectant application must be measured during peak hourly
				flow.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1010 - Treatment Technique Requirements: Bin Classification for Filtered System Suppliers

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Following completion of the initial round of source water monitoring required
				under Section
				611.1001(a),
				a filtered system supplier must calculate an initial Cryptosporidium bin
				concentration for each plant for which monitoring was required. Calculation of
				the bin concentration must use the Cryptosporidium results reported under
				Section
				611.1001(a)
				and must follow the appropriate of the procedures set forth in subsection
				(b).
b) Bin Concentration
				Calculation Procedures
1) For a supplier that
				collects a total of at least 48 samples, the bin concentration is equal to the
				arithmetic mean of all sample concentrations.
2) For a supplier that collects a total of at
				least 24 samples, but not more than 47 samples, the bin concentration is equal
				to the highest arithmetic mean of all sample concentrations in any 12
				consecutive months during which Cryptosporidium samples were
				collected.
3) For a supplier that
				serves fewer than 10,000 people and which monitors for Cryptosporidium for only
				one year (i.e., collect 24 samples in 12 months), the bin concentration is
				equal to the arithmetic mean of all sample concentrations.
4) For a supplier with plants operating only
				part of the year that monitors fewer than 12 months per year under Section
				611.1001(e),
				the bin concentration is equal to the highest arithmetic mean of all sample
				concentrations during any year of Cryptosporidium monitoring.
5) If the monthly Cryptosporidium sampling
				frequency varies, a supplier must first calculate a monthly average for each
				month of monitoring. A supplier must then use these monthly average
				concentrations, rather than individual sample concentrations, in the applicable
				calculation for bin classification in subsections (b)(1) through
				(b)(4).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1012 - Treatment Technique Requirements: Unfiltered System Cryptosporidium Treatment Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Determination of the Mean Cryptosporidium Level
1) Following completion of the initial source
				water monitoring required by Section
				611.1001(a),
				an unfiltered system supplier is required to have calculated the arithmetic
				mean of all Cryptosporidium sample concentrations reported under Section
				611.1001(a).
				The supplier is required to have reported this value to the Agency for approval
				no later than six months after the month the supplier is required to have
				completed initial source water monitoring based on the applicable schedule set
				forth in Section
				611.1001(c).
2) Following completion of the second round
				of source water monitoring required by Section
				611.1001(b),
				an unfiltered system supplier must calculate the arithmetic mean of all
				Cryptosporidium sample concentrations reported under Section
				611.1001(b).
				The supplier must report this value to the Agency for approval no later than
				six months after the month the supplier is required to complete the second
				round of source water monitoring based on the applicable schedule set forth in
				Section
				611.1001(c).
3) If the monthly Cryptosporidium sampling
				frequency varies, a supplier must first calculate a monthly average for each
				month of monitoring. The supplier must then use these monthly average
				concentrations, rather than individual sample concentrations, in the
				calculation of the mean Cryptosporidium level in subsection (a)(1) or
				(a)(2).
4) The report to the Agency
				of the mean Cryptosporidium levels calculated under subsections (a)(1) and
				(a)(2) must include a summary of the source water monitoring data used for the
				calculation.
5) A failure to comply
				with the conditions of subsection (a) is a violation of the treatment technique
				requirement.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1013 - Treatment Technique Requirements: Schedule for Compliance with Cryptosporidium Treatment Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Following initial bin classification under Section
				611.1010(c), a
				filtered system supplier must provide the level of treatment for
				Cryptosporidium required by Section
				611.1011 according to the
				applicable schedule set forth in subsection (c).
b) Following initial determination of the
				mean Cryptosporidium level under Section
				611.1012(a)(1),
				an unfiltered system supplier must provide the level of treatment for
				Cryptosporidium required by Section
				611.1012 according to the
				applicable schedule set forth in subsection (c).
c) Cryptosporidium Treatment Compliance Dates
BOARD NOTE: The federal compliance dates and possible
				  two-year extension corresponding
				  40 CFR
				  141.713(c) provides are all
				  past dates. The Board retains the text of subsections (c)(1) through (c)(5) as
				  amended for guidance implementing the rules under Sections
				  611.1001(f) and
				  611.1013(d) and
				  (e).
1) A supplier serving 100,000 or more persons
				was required to comply with Cryptosporidium treatment requirements before April
				1, 2012.
2) A supplier serving
				50,000 to 99,999 persons was required to comply with Cryptosporidium treatment
				requirements before October 1, 2012.
3) A supplier serving 10,000 to 49,999
				persons was required to comply with Cryptosporidium treatment requirements
				before October 1, 2013.
4) A
				supplier serving fewer than 10,000 persons was required to comply with
				Cryptosporidium treatment requirements before October 1, 2014.
5) The Agency may allow no more than an
				additional two years for complying with the treatment requirement if it
				determines that additional time is necessary for the supplier to make capital
				improvements to implement the treatment.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1014 - Treatment Technique Requirements: Requirements for Uncovered Finished Water Storage Facilities

Current through Register Vol. 48, No. 28, July 12, 2024
a) A
				supplier that uses uncovered finished water storage facilities must comply with
				the conditions of this Section.
b)
				A supplier must notify the Agency in writing of the use of each uncovered
				finished water storage facility.
c)
				A supplier must meet either of the following conditions for each uncovered
				finished water storage facility, or the supplier must comply with an
				Agency-approved schedule to meet these conditions:
1) The supplier must cover any uncovered
				finished water storage facility; or
2) The supplier must treat the discharge from
				the uncovered finished water storage facility to the distribution system to
				achieve inactivation or removal of at least 4-log virus, 3-log Giardia lamblia,
				and 2-log Cryptosporidium using a protocol approved by the Agency.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1015 - Requirements for Microbial Toolbox Components: Microbial Toolbox Options for Meeting Cryptosporidium Treatment Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) Treatment Credits
1) A supplier receives the applicable of the
				treatment credits set forth in subsection (b) by meeting the conditions for
				microbial toolbox options described in Sections
				611.1016 through
				611.1020. The supplier applies
				these treatment credits to meet the applicable treatment requirements set forth
				in Section 611.1011 or Section
				611.1012.
2) An unfiltered system supplier is eligible
				for treatment credits for the microbial toolbox options described in Section
				611.1020 only.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1017 - Requirements for Microbial Toolbox Components: Pre-Filtration Treatment Toolbox Components

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Presedimentation. A supplier receives 0.5 -log Cryptosporidium treatment credit
				for a presedimentation basin during any month the process meets the criteria in
				this subsection (a).
1) The presedimentation
				basin must be in continuous operation and must treat the entire plant flow
				taken from a surface water or groundwater under the direct influent of surface
				water source.
2) The supplier must
				continuously add a coagulant to the presedimentation basin.
3) The presedimentation basin must achieve
				both of the following performance criteria:
A) It demonstrates at least 0.5-log mean
				reduction of influent turbidity. This reduction must be determined using daily
				turbidity measurements in the presedimentation process influent and effluent,
				and it must be calculated as follows: log10 (monthly
				mean of daily influent turbidity) - log10 (monthly mean
				of daily effluent turbidity); and
B) It complies with Agency-approved
				performance criteria that demonstrate at least 0.5-log mean removal of
				micronsized particulate material through the presedimentation
				process.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1018 - Requirements for Microbial Toolbox Components: Treatment Performance Toolbox Components

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Combined Filter Performance. A supplier that uses conventional filtration
				treatment or direct filtration treatment receives an additional 0.5 -log
				Cryptosporidium treatment credit during any month it meets the criteria in this
				subsection (a). Its combined filter effluent (CFE) turbidity must be less than
				or equal to 0.15 NTU in at least 95 percent of the measurements. Turbidity must
				be measured as described in Sections
				611.531
				and
				611.533.
b) Individual Filter Performance. A supplier
				that uses conventional filtration treatment or direct filtration treatment
				receives 0.5-log Cryptosporidium treatment credit, which can be in addition to
				the 0.5-log credit under subsection (a), during any month it meets the criteria
				in this subsection (b). Compliance with these criteria must be based on
				individual filter turbidity monitoring as described in Section
				611.744
				or
				611.956(a),
				as applicable.
1) The filtered water turbidity
				for each individual filter must be less than or equal to 0.15 NTU in at least
				95 percent of the measurements recorded each month.
2) No individual filter may have a measured
				turbidity greater than 0.3 NTU in two consecutive measurements taken 15 minutes
				apart.
3) Any supplier that has
				received treatment credit for individual filter performance and fails to meet
				the requirements of subsection (b)(1) or (b)(2) during any month does not
				receive a treatment technique violation under Section
				611.1011(c)
				if the Agency determines the following:
A)
				The failure was due to unusual and short-term circumstances that could not
				reasonably be prevented through optimizing treatment plant design, operation,
				and maintenance; and
B) The
				supplier has experienced no more than two such failures in any calendar
				year.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1020 - Requirements for Microbial Toolbox Components: Inactivation Toolbox Components

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Calculation of CT Values
1) CT is the product
				of the disinfectant contact time (T, in minutes) and disinfectant concentration
				(C, in milligrams per liter). A supplier with treatment credit for chlorine
				dioxide or ozone under subsection (b) or (c) must calculate CT at least once
				each day, with both C and T measured during peak hourly flow, as specified in
				Sections
				611.531
				and
				611.532.
2) A supplier with several disinfection
				segments in sequence may calculate CT for each segment, where a disinfection
				segment is defined as a treatment unit process with a measurable disinfectant
				residual level and a liquid volume. Under this approach, the supplier must add
				the Cryptosporidium CT values in each segment to determine the total CT for the
				treatment plant.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1021 - Reporting and Recordkeeping Requirements: Reporting Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) A supplier must
				report sampling schedules under Section
				611.1002
				and source water monitoring results under Section
				611.1006
				unless it notifies the Agency that it will not conduct source water monitoring
				because the supplier meets the criteria of Section
				611.1001(d).
b) A supplier must report the use of
				uncovered finished water storage facilities to the Agency, as described in
				Section
				611.1014.
c) A filtered system supplier must report its
				Cryptosporidium bin classification, as described in Section
				611.1010.
d) An unfiltered system supplier must report
				its mean source water Cryptosporidium level, as described in Section
				611.1012.
e) A supplier must report disinfection
				profiles and benchmarks to the Agency, as described in Sections
				611.1008
				and
				611.1009,
				prior to making a significant change in disinfection practice.
f) A supplier must report to the Agency in
				accordance with subsections (f)(1) through (f)(15) for any microbial toolbox
				options used to comply with treatment requirements under Section
				611.1011
				or Section 611.1012. Alternatively, the Agency may, by a SEP, approve a
				supplier to certify operation within required parameters for treatment credit
				rather than reporting monthly operational data for toolbox options.
1) A supplier that uses the watershed control
				program toolbox option must submit the following information on the indicated
				schedule:
A) A notice of intention to develop
				a new or continue an existing watershed control program no later than two years
				before the applicable treatment compliance date in Section
				611.1013;
B) A watershed control plan no later than one
				year before the applicable treatment compliance date in Section
				611.1013;
C) An annual watershed
				control program status report every 12 months, beginning one year after the
				applicable treatment compliance date in Section 611.1013; and
D) A watershed sanitary survey report: for a
				CWS supplier, every three years beginning three years after the applicable
				treatment compliance date in Section
				611.1013
				or, for a non-CWS supplier, every five years beginning five years after the
				applicable treatment compliance date in Section 611.1013.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1022 - Reporting and Recordkeeping Requirements: Recordkeeping Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) A supplier must
				keep results from the initial round of source water monitoring pursuant to
				Section
				611.1001(a)
				and the second round of source water monitoring pursuant to Section
				611.1001(b)
				 until three years after bin classification
				pursuant to Section
				611.1010
				for a filtered system supplier or determination of the mean Cryptosporidium
				level pursuant to Section
				611.1010
				for an unfiltered system supplier for the particular round of
				monitoring.
b) A supplier must keep
				any notification to the Agency that it will not conduct source water monitoring
				due to meeting the criteria of Section
				611.1001(d)
				for three years.
c) A supplier must
				keep the results of treatment monitoring associated with microbial toolbox
				options pursuant to Sections
				611.1016
				through
				611.1020
				and with uncovered finished water reservoirs pursuant to Section
				611.1014,
				as applicable, for three years.
BOARD NOTE: Derived from
				  40 CFR
				  141.722(2006).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1023 - Requirements to Respond to Significant Deficiencies Identified in Sanitary Surveys Performed by USEPA or the Agency

Current through Register Vol. 48, No. 28, July 12, 2024
a) A "sanitary survey" is an onsite review of
				the water source (identifying sources of contamination by using results of
				source water assessments where available), facilities, equipment, operation,
				maintenance, and monitoring compliance of a PWS to evaluate the adequacy of the
				PWS, its sources and operations, and the distribution of safe drinking
				water.
b) For the purposes of this
				Section, a "significant deficiency" includes a defect in design, operation, or
				maintenance, or a failure or malfunction of the sources, treatment, storage, or
				distribution supplier that USEPA or the Agency determines to be causing, or has
				the potential for causing, the introduction of contamination into the water
				delivered to consumers.
c) For
				sanitary surveys performed by USEPA or the Agency, the supplier must respond in
				writing to significant deficiencies identified in sanitary survey reports no
				later than 45 days after receipt of the report, indicating how and on what
				schedule the supplier will address significant deficiencies noted in the
				survey.
d) A supplier must correct
				significant deficiencies identified in sanitary survey reports according to the
				schedule approved by USEPA or the Agency, or if there is no approved schedule,
				according to the schedule reported pursuant to subsection (c) if such
				deficiencies are within the control of the supplier.
BOARD NOTE: Derived from
					 40
					 CFR 141.723 (2016).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1051 - General

Current through Register Vol. 48, No. 28, July 12, 2024
a) General. The
				provisions of this Subpart AA include both MCL and treatment technique
				requirements.
b) Applicability. The
				provisions of this Subpart AA apply to all PWSs.
c) This subsection (c) corresponds with
				40 CFR
				141.851(c), which includes a
				past compliance date. This statement maintains structural consistency with the
				federal regulations.
d) This
				subsection (d) corresponds with
				40 CFR
				141.851(d), a provision that
				pertains to USEPA implementation, which is not necessary in the Illinois
				regulations. This statement maintains structural consistency with the federal
				regulations.
e) Violations of
				NPDWRs. Failure to comply with the applicable requirements of Sections 611.1051
				through
				611.1061,
				including requirements established by the State pursuant to these provisions,
				is a violation of the NPDWRs in this Subpart AA.
BOARD NOTE: Derived from
					 40 CFR
					 141.851 (2016).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1054 - Routine Monitoring Requirements for Non-CWSs That Serve 1,000 or Fewer People Using Only Groundwater

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				General
1) This Section applies to non-CWS
				suppliers that use only groundwater (except groundwater under the direct
				influence of surface water, as defined in Section
				611.102
				) and which serve 1,000 or fewer people.
2) Following any total coliform-positive
				sample taken under this Section, a supplier must comply with the repeat
				monitoring requirements and E. coli analytical requirements in Section
				611.1058.
3) Once all monitoring required by this
				Section and Section
				611.1058
				for a calendar month has been completed, a supplier must determine whether any
				coliform treatment technique triggers specified in Section
				611.1059
				have been exceeded. If any trigger has been exceeded, the supplier must
				complete assessments as required by Section 611.1059.
4) For the purpose of determining eligibility
				for remaining on or qualifying for quarterly monitoring under the provisions of
				subsections (f)(4) and (g)(2), respectively, for transient non-CWS suppliers,
				the Agency may elect to not count monitoring violations under Section
				611.1060(c)(1)
				if the missed sample is collected no later than the end of the monitoring
				period following the monitoring period in which the sample was missed. The
				supplier must collect the make-up sample in a different week than the routine
				sample for that monitoring period and should collect the sample as soon as
				possible during the monitoring period. The Agency may not use this provision
				under subsection (h). This authority does not affect the provisions of Sections
				611.1060(c)(1)
				and
				611.1061(a)(4).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1055 - Routine Monitoring Requirements for CWSs That Serve 1,000 or Fewer People Using Only Groundwater

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				General
1) This Section applies to CWS
				suppliers that use only ground water (except ground water under the direct
				influence of surface water, as defined in Section
				611.102
				) and which serve 1,000 or fewer people.
2) Following any total coliform-positive
				sample taken under the provisions of this Section, the supplier must comply
				with the repeat monitoring requirements and E. coli analytical requirements in
				Section
				611.1058.
3) Once all monitoring required by this
				Section and Section
				611.1058
				for a calendar month has been completed, the supplier must determine whether
				any coliform treatment technique triggers specified in Section
				611.1059
				have been exceeded. If any trigger has been exceeded, the supplier must
				complete assessments as required by Section 611.1059.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1056 - Routine Monitoring Requirements for Subpart B Systems That Serve 1,000 or Fewer People

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				General
1) The provisions of this Section
				apply to a Subpart B system supplier that serves 1,000 or fewer
				people.
2) Following any total
				coliform-positive sample taken under the provisions of this Section, a supplier
				must comply with the repeat monitoring requirements and E. coli analytical
				requirements in Section
				611.1058.
3) Once all monitoring required by this
				Section and Section
				611.1058
				for a calendar month has been completed, a supplier must determine whether any
				coliform treatment technique triggers specified in Section
				611.1059
				have been exceeded. If any trigger has been exceeded, the supplier must
				complete assessments as required by Section 611.1059.
4) Seasonal System Suppliers
A) All seasonal system suppliers must
				demonstrate completion of an Agency-approved start-up procedure, which may
				include a requirement for start-up sampling prior to serving water to the
				public.
B) The Agency may, by a
				SEP, exempt any seasonal system supplier from some or all of the requirements
				for seasonal system suppliers if the supplier's entire distribution system
				remains pressurized during the entire period that the supplier's system is not
				operating.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1057 - Routine Monitoring Requirements for PWSs That Serve More Than 1,000 People

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				General
1) The provisions of this Section
				apply to public water systems serving more than 1,000 persons.
2) Following any total coliform-positive
				sample taken under the provisions of this Section, the supplier must comply
				with the repeat monitoring requirements and E. coli analytical requirements in
				Section
				611.1058.
3) Once all monitoring required by this
				Section and Section
				611.1058
				for a calendar month has been completed, a supplier must determine whether any
				coliform treatment technique triggers specified in Section
				611.1059
				have been exceeded. If any trigger has been exceeded, the supplier must
				complete assessments as required by Section 611.1059.
4) Seasonal Systems
A) A seasonal system supplier must
				demonstrate completion of an Agency-approved start-up procedure, which may
				include a requirement for start-up sampling prior to serving water to the
				public.
B) The Agency may, by a
				SEP, exempt any seasonal system supplier from some or all of the requirements
				for seasonal system suppliers if the supplier's entire distribution system
				remains pressurized during the entire period that the supplier's system is not
				operating.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1059 - Coliform Treatment Technique Triggers and Assessment Requirements for Protection Against Potential Fecal Contamination

Current through Register Vol. 48, No. 28, July 12, 2024
a) Treatment Technique Triggers. A supplier
				must conduct assessments in accordance with subsection (b) after exceeding
				treatment technique triggers in subsections (a)(1) and (a)(2).
1) Level 1 Treatment Technique Triggers
A) For a supplier taking 40 or more samples
				per month, the supplier exceeds 5.0 % total coliform-positive samples for the
				month.
B) For a supplier taking
				fewer than 40 samples per month, the supplier has two or more total
				coliform-positive samples in the same month.
C) The supplier fails to take every required
				repeat sample after any single total coliform-positive sample.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1060 - Violations

Current through Register Vol. 48, No. 28, July 12, 2024
a) E. coli MCL
				Violations. A supplier is in violation of the MCL for E. coli when any of the
				conditions identified in subsections (a)(1) through (a)(4) occur.
1) The supplier has an E. coli-positive
				repeat sample following a total coliform-positive routine sample.
2) The supplier has a total coliform-positive
				repeat sample following an E. coli-positive routine sample.
3) The supplier fails to take all required
				repeat samples following an E. coli-positive routine sample.
4) The supplier fails to test for E. coli
				when any repeat sample tests positive for total coliform.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AA - REVISED TOTAL COLIFORM RULE › Section 611.1061 - Reporting and Recordkeeping

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Reporting
1) E. coli
A) A supplier must notify the Agency by the
				end of the day when the system learns of an E. coli MCL violation, unless the
				supplier learns of the violation after the Agency office is closed and the
				Agency does not have either an after-hours phone line or an alternative
				notification procedure, in which case the supplier must notify the Agency
				before the end of the next business day, and the supplier notifies the public
				in accordance with Subpart V.
B) A
				supplier must notify the Agency by the end of the day when the supplier is
				notified of an E. coli-positive routine sample, unless the supplier is notified
				of the result after the Agency office is closed and the Agency does not have
				either an after-hours phone line or an alternative notification procedure, in
				which case the supplier must notify the Agency before the end of the next
				business day.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1350 - General Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Applicability and Scope
1) Applicability and
				Complying with this Subpart AG. Subpart G and this Subpart AG constitute NPDWRs
				for lead and copper. Subpart G and this Subpart AG apply to all community water
				systems (CWSs) and non-transient, non-community water systems (NTNCWSs).
A) A supplier must comply with this Subpart
				AG until the earlier of when the supplier complies with Subpart AG or October
				16, 2024.
B) If the Agency issued a
				SEP prior to December 16, 2021, exempting a supplier under any rule in former
				Subpart G (now this Subpart AG), the supplier must comply with this Subpart AG
				until that SEP expires.
C) The
				Agency may issue a SEP requiring a supplier to comply with specified rules in
				Subpart G before Section
				611.350(a)(1)(A) or
				(a)(1)(B) otherwise requires or as necessary
				to address issues in a notice the Agency received from USEPA under
				40 CFR
				142.23 or
				142.30. The SEP must specify the
				rules in Subpart G with which the supplier must comply and their counterparts
				in this Subpart AG with which the supplier needs no longer comply. The supplier
				must comply with the SEP-specified Subpart G rules in lieu of their
				counterparts in this Subpart AG.
D)
				Relationship Between Subpart G and Subpart AG Rules
i) The rules in this Subpart AG are based on
				Subpart G as it existed on December 16, 2021, the effective date of USEPA's
				Lead and Copper Rule Revisions.
ii)
				Each rule in this Subpart AG corresponds with a rule in Subpart G by adding the
				digit "1" immediately after "611." in the Section number. Removing that "1"
				from the Section number of a rule in this Subpart AG gives the corresponding
				rule in Subpart G.
iii) Any action
				under a rule that was in Subpart G before December 16, 2021, satisfies the
				corresponding rule in this Subpart AG.
BOARD NOTE: USEPA's LCRR apply to all suppliers on December
				  16, 2021. However, USEPA delays requiring compliance with LCRR until October
				  16, 2024, when any previously granted exemption expires, or as provided
				  otherwise by any of several specified rules for corrosion control treatment;
				  lead service line replacement; public education, supplemental monitoring, and
				  mitigation; monitoring; and reporting (corresponding with 35 Ill. Adm. Code
				  611.351,
				  611.354,
				  611.355,
				  611.356, or
				  611.360). Until a supplier must
				  comply with the LCRR, USEPA requires the supplier to comply with subpart I of
				  40 CFR
				  141 (2020). This requires the Board to codify
				  two versions of the Lead and Copper Rule: one in this Subpart AG, representing
				  the Lead and Copper Rules prior to the LCRR (40 CFR 141 (2020)),
				  and the other in Subpart G, representing
				  40 CFR
				  141 incorporating the LCRR.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1351 - Applicability of Corrosion Control

Current through Register Vol. 48, No. 28, July 12, 2024
a) Corrosion Control Required. A supplier
				must complete the applicable corrosion control treatment under Section
				611.1352 on or before the
				deadlines in this Section.
1) Large Systems.
				Each large system supplier (one regularly serving more than 50,000 persons)
				must complete the corrosion control treatment steps subsection (d) specifies,
				unless subsection (b)(2) or (b)(3) deems the supplier to have optimized
				corrosion control.
2) Small and
				Medium-Sized Systems. Each small system supplier (one regularly serving 3,300
				or fewer persons) and each medium-sized water system (one regularly serving
				3,301 to 50,000 persons) must complete the corrosion control treatment steps
				subsection (e) specifies, unless subsection (b)(1), (b)(2), or (b)(3) deems the
				supplier to have optimized corrosion control.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1352 - Corrosion Control Treatment

Current through Register Vol. 48, No. 28, July 12, 2024
Each supplier must complete the corrosion control treatment
				  requirements this Section describes that applying to the supplier under Section
				  611.1351.
a) System Recommendation Regarding Corrosion
				Control Treatment
1) Based on the results of
				lead and copper tap monitoring and water quality parameter monitoring, a small-
				or medium-sized system exceeding the lead or copper action level must recommend
				to the Agency that the supplier install one or more of the corrosion control
				treatments in subsection (c)(1) that the supplier believes constitutes optimal
				corrosion control for its system.
2) The Agency may issue a SEP requiring the
				supplier to conduct additional water quality parameter monitoring under Section
				611.1357(b) to
				assist the Agency in reviewing the supplier's recommendation.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1353 - Source Water Treatment

Current through Register Vol. 48, No. 28, July 12, 2024
A supplier must complete source water monitoring and
				  treatment requirements (under subsection (b) and Sections
				  611.1356 and
				  611.1358) before specific
				  deadlines.
a) Deadlines for Completing
				Source Water Treatment Steps
1) Step 1: A
				supplier exceeding the lead or copper action level must complete lead and
				copper and source water monitoring (under Section
				611.1358(b))
				and recommend treatment to the Agency (under subsection (b)(1)) within 180 days
				after the end of the tap monitoring period during which the supplier exceeded
				the action level.
2) Step 2: The
				Agency must issue a SEP determining source water treatment (under subsection
				(b)(2)) within six months after the supplier submits monitoring results under
				step 1.
3) Step 3: If the Agency
				requires installing source water treatment, the supplier must install that
				treatment (under subsection (b)(3)) within 24 months after the Agency completes
				step 2.
4) Step 4: The supplier
				must complete follow-up tap water monitoring (under Section
				611.1356(d)(2))
				and source water monitoring (under Section
				611.1358(c))
				within 36 months after completion of step 2.
5) Step 5: The Agency must issue a SEP
				reviewing the supplier's installation and operation of source water treatment
				and specify MPCs for lead and copper (under subsection (b)(4)) within six
				months after the Agency completes step 4.
6) Step 6: The supplier must comply with the
				Agency-specified lead and copper MPCs (under subsection (b)(4)) and continue
				source water monitoring (under Section
				611.1358(d)).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1354 - Lead Service Line Replacement

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Suppliers That Must Replace Lead Service Lines
1) If the results from tap samples the
				supplier took under Section
				611.1356(d)(2)
				exceed the lead action level after the supplier installs corrosion control or
				source water treatment (whichever sampling occurs later), the supplier must
				recommence replacing lead service lines under subsection (b).
2) If a supplier violates Section
				611.1351 or
				611.1353 by failing to install
				source water or corrosion control treatment, the Agency may issue a SEP
				requiring the supplier to begin lead service line replacement under this
				Section after the date when Section
				611.1356(d)(2) 
				required the supplier to conduct monitoring.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1356 - Tap Water Monitoring for Lead and Copper

Current through Register Vol. 48, No. 28, July 12, 2024
a) Sampling Site Location
1) Selecting a Pool of Targeted Sampling
				Sites
A) Before the applicable date for
				beginning monitoring under subsection (d)(1), a supplier must complete
				evaluating the materials in its distribution system to identify a pool of
				targeted sampling sites complying with this Section.
B) The pool of targeted sampling sites must
				be large enough to ensure that the supplier can collect the number of lead and
				copper tap that the supplier can collect the number of lead and copper tap
				samples subsection (c) requires.
C)
				The supplier must select the sites for collecting first-draw tap samples from
				this pool of targeted sampling sites.
D) The supplier must not select as sampling
				sites any faucets having point-of-use or point-of-entry treatment devices
				designed to remove or capable of removing inorganic contaminants.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1357 - Monitoring for Water Quality Parameters

Current through Register Vol. 48, No. 28, July 12, 2024
A large system supplier or any small or medium-sized system
				  supplier exceeding the lead or copper action level must monitor water quality
				  parameters in addition to lead and copper under this Section.
a) General Requirements
1) Sample Collection Methods
A) Using Tap Samples. In totality, all tap
				samples a supplier collects must represent water quality throughout the
				supplier's distribution system, considering the number of persons served, the
				different sources of water, the different treatment methods the supplier
				employs, and seasonal variability. Although a supplier may conveniently conduct
				tap sampling for water quality parameters at sites it uses for coliform
				sampling under Subpart L, the supplier needs not do so, and the supplier needs
				not perform tap sampling under this Section at taps it targeted for lead and
				copper sampling under Section
				611.1356(a).
B) Using Entry Point Samples. A supplier must
				collect samples at entry points to the distribution system from locations
				representing each source after treatment. If a supplier draws water from more
				than one source and combines the sources before distribution, the supplier must
				sample at an entry point to the distribution system during normal operating
				conditions (i.e., when the supplier uses water representing all
				sources).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart AG - INTERIM LEAD AND COPPER RULES › Section 611.1358 - Monitoring for Lead and Copper in Source Water

Current through Register Vol. 48, No. 28, July 12, 2024
a) Sampling Location, Collection Methods, and
				Number of Samples
1) A supplier failing to
				meet the lead or copper action level on the basis of tap samples under Section
				611.1356 must collect lead and
				copper source water samples under specific requirements for sample location,
				number of samples, and collection methods:
A)
				A groundwater supplier must take a minimum of one sample at every entry point
				to the distribution system representing each well after treatment (a "sampling
				point"). The supplier must take one sample at the same sampling point unless
				conditions make another sampling point more closely represent a source or
				treatment plant.
B) A surface water
				supplier must take a minimum of one sample at every entry point to the
				distribution system after treatment or in the distribution system at a sampling
				point. The supplier must take each sample at the same sampling point unless
				conditions make another sampling point more closely represent a source or
				treatment plant.
BOARD NOTE: For this subsection (a)(1)(B), a system using a
				  combination of surface water and groundwater sources is a surface water
				  system.
C) If a supplier
				draws water from more than one source and combines the sources before
				distribution, the supplier must sample at an entry point to the distribution
				system during periods of normal operating conditions (i.e., when water
				represents all sources being used).
D) The Agency may issue a SEP reducing the
				total number of samples a supplier must analyze by allowing the supplier to
				composite samples. Certified laboratory personnel must composite the samples. A
				composite sample may include a maximum of five samples. However, if the lead
				concentration in the composite sample is greater than or equal to
				0.001 mg/L or the copper
				concentration is greater than or equal to
				0.160 mg/L, the supplier must do
				either of two things:
i) The supplier must
				take and analyze a follow-up sample within 14 days at each sampling point
				included in the composite sample; or
ii) If duplicate samples or sufficient
				volumes of the original samples are available from each sampling point the
				certified laboratory used in the composite sample, the supplier may use those
				instead of resampling.