reglab/statecodes huggingface dataset:
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart V - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS › Section 611.903 - Tier 2 Public Notice: Form, Manner, and Frequency of Notice

Current through Register Vol. 48, No. 28, July 12, 2024
a) Violations or Situations That Require a
				Tier 2 Public Notice. This subsection (a) lists the violation categories and
				other situations requiring a Tier 2 public notice. Appendix G identifies the
				tier assignment for each specific violation or situation.
1) All violations of the MCL, MRDL, and
				treatment technique requirements, except where a Tier 1 notice is required
				under Section
				611.902(a)
				or where the Agency determines by a SEP that a Tier 1 notice is
				required.
2) Violations of the
				monitoring and testing procedure requirements, where the Agency determines by a
				SEP that a Tier 2 rather than a Tier 3 public notice is required, taking into
				account potential health impacts and persistence of the violation.
3) Failure to comply with the terms and
				conditions of any relief equivalent to a SDWA section 1415 variance or a SDWA
				section 1416 exemption in place.
4)
				Failure to take corrective action or failure to maintain at least 4-log
				treatment of viruses (using inactivation, removal, or an Agency-approved
				combination of 4-log virus inactivation and removal) before or at the first
				customer under Section
				611.803(a).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart V - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS › Section 611.904 - Tier 3 Public Notice: Form, Manner, and Frequency of Notice

Current through Register Vol. 48, No. 28, July 12, 2024
a) Violations or Situations That Require a
				Tier 3 Public Notice. This subsection (a) lists the violation categories and
				other situations requiring a Tier 3 public notice. Appendix G identifies the
				tier assignment for each specific violation or situation.
1) Monitoring violations under this Part,
				except where a Tier 1 notice is required under Section
				611.902(a)
				or where the Agency determines by a SEP that a Tier 2 notice is
				required;
2) Failure to comply with
				a testing procedure established in this Part, except where a Tier 1 notice is
				required under Section
				611.902(a)
				or where the Agency determines by a SEP that a Tier 2 notice is
				required;
3) Operation under relief
				equivalent to a SDWA section 1415 variance granted under Section
				611.111
				or relief equivalent to a SDWA section 1416 exemption granted under Section
				611.112;
4) Availability of unregulated contaminant
				monitoring results, as required under Section
				611.907;
5) The notice for an exceedance of 2 mg/l
				fluoride (the federal secondary MCL for fluoride (see
				40 CFR
				143.3 )), as required under Section
				611.908;
				and
BOARD NOTE: See the Board Note appended to Section
				  611.908
				  for explanation.
6)
				Reporting and recordkeeping violations under Subpart AA.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart V - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS › Section 611.905 - Content of the Public Notice

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Elements Included in Public Notice for Violation of an NPDWR or Other
				Situations. When a PWS supplier violates an NPDWR 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 contaminants of concern, and (as applicable) the
				contaminant levels;
2) When the
				violation or situation occurred;
3)
				Any potential adverse health effects from the violation or situation, including
				the standard language under subsection (d)(1) or (d)(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 supplier is doing to correct the
				violation or situation;
8) When the
				water supplier 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; and
10) A statement to
				encourage the notice recipient to distribute the public notice to other persons
				served, using the standard language under subsection (d)(3), where
				applicable.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart V - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS › Section 611.906 - Notice to New Billing Units or New Customers

Current through Register Vol. 48, No. 28, July 12, 2024
a) The Requirement for a CWS. A CWS supplier
				must give a copy of the most recent public notice for any continuing violation,
				the existence of relief equivalent to a SDWA section 1415 variance or a section
				1416 exemption, 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) The Requirement for
				non-CWS. A non-CWS supplier must continuously post the public notice in
				conspicuous locations in order to inform new consumers of any continuing
				violation, relief equivalent to a SDWA section 1415 variance or a section 1416
				exemption, or other situation requiring a public notice for as long as the
				violation, the relief equivalent to a SDWA section 1415 variance or a section
				1416 exemption, or other situation persists.
BOARD NOTE: Derived from
					 40 CFR
					 141.206.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart V - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS › Section 611.907 - Special Notice of the Availability of Unregulated Contaminant Monitoring Results

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				When to Give Special Notice. The owner or operator of a CWS supplier or an
				NTNCWS supplier required to monitor for unregulated contaminants by USEPA under
				40 CFR
				141.40 must notify persons served by the
				supplier of the availability of the results of such sampling no later than 12
				months after the monitoring results are known.
b) The Form and Manner of a Special Notice.
				The form and manner of the public notice must follow the requirements for a
				Tier 3 public notice prescribed in Sections
				611.904(c),
				(d)(1), and (d)(3). The notice must also
				identify a person and provide the telephone number to contact for information
				on the monitoring results.
BOARD NOTE: Derived from
					 40
					 CFR 141.207.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart V - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS › Section 611.909 - Special Notice for Nitrate Exceedances above the MCL by a Non-Community Water System

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				When the Special Notice Is to Be Given. The owner or operator of a non-CWS
				supplier granted permission by the Agency under Section
				611.300(d)
				to exceed the nitrate MCL must provide notice to persons served according to
				the requirements for a Tier 1 notice under Section
				611.902(a)
				and (b).
b) The Form and Manner of a Special Notice. A
				non-CWS supplier granted permission by the Agency to exceed the nitrate MCL
				under Section
				611.300(d)
				must provide continuous posting of the fact that nitrate levels exceed 10 mg/l
				and the potential health effects of exposure, according to the requirements for
				Tier 1 notice delivery under Section
				611.902(c)
				 and the content requirements under Section
				611.905.
BOARD NOTE: Derived from
					 40
					 CFR 141.209.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart V - PUBLIC NOTIFICATION OF DRINKING WATER VIOLATIONS › Section 611.910 - Notice by the Agency on Behalf of a PWS

Current through Register Vol. 48, No. 28, July 12, 2024
a) The Agency may issue the notice required
				by this Subpart V on behalf of the owner and operator of the PWS supplier if
				the Agency complies with the requirements of this Subpart V.
b) The responsibility of the PWS supplier
				when notice is given by the Agency. The owner or operator of the PWS supplier
				remains responsible for ensuring that the requirements of this Subpart V are
				met.
BOARD NOTE: Derived from
				  40
				  CFR
				  141.210(2002).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart W - INITIAL DISTRIBUTION SYSTEM EVALUATIONS › Section 611.920 - General Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				USEPA has designated that the requirements of this Subpart W constitute
				National Primary Drinking Water Regulations. The regulations in this Subpart W
				establish monitoring and other requirements for identifying Subpart Y
				compliance monitoring locations for determining compliance with maximum
				contaminant levels for TTHMs and HAA5. The supplier must use an initial
				distribution system evaluation (IDSE) to determine the locations in its
				distribution system that are representative of high TTHM and HAA5
				concentrations throughout the supplier's distribution system. An IDSE is used
				in conjunction with, but separate from, Subpart I compliance monitoring, to
				identify and select Subpart Y compliance monitoring locations.
b) Applicability. A supplier is subject to
				the requirements of this Subpart W if it fulfills any of the following
				conditions:
1) The supplier owns or operates
				a community water system that uses a primary or residual disinfectant other
				than ultraviolet light;
2) The
				supplier delivers water that has been treated with a primary or residual
				disinfectant other than ultraviolet light; or
3) The supplier owns or operates a
				non-transient non-community water system that serves at least 10,000 people,
				and it either uses a primary or residual disinfectant other than ultraviolet
				light, or it delivers water that has been treated with a primary or residual
				disinfectant other than ultraviolet light.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart W - INITIAL DISTRIBUTION SYSTEM EVALUATIONS › Section 611.921 - Standard Monitoring

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Standard Monitoring Plan. A supplier's standard monitoring plan must comply
				with subsections (a)(1) through (a)(4). The supplier must prepare and submit
				its standard monitoring plan to the Agency according to the appropriate of the
				schedules provided in Section
				611.920(c).
1) The supplier's standard monitoring plan
				must include a schematic of its distribution system (including distribution
				system entry points and their sources, and storage facilities), with notes
				indicating locations and dates of all projected standard monitoring, and all
				projected Subpart I compliance monitoring.
2) The supplier's standard monitoring plan
				must include justification of standard monitoring location selection and a
				summary of data the supplier relied on to justify standard monitoring location
				selection.
3) The supplier's
				standard monitoring plan must specify the population served and its system type
				(i.e., that it is a Subpart B or groundwater system).
4) The supplier must retain a complete copy
				of its standard monitoring plan submitted under this subsection (a), including
				any Agency modification of the plan, for as long as the supplier is required to
				retain its IDSE report under subsection (c)(4).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart W - INITIAL DISTRIBUTION SYSTEM EVALUATIONS › Section 611.923 - 40/30 Certification

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Eligibility. A supplier was eligible for 40/30 certification if it had no TTHM
				or HAA5 monitoring violations under Subpart I and no individual sample exceeded
				0.040 mg/L for TTHM or
				0.030 mg/L for HAA5 during an
				eight consecutive calendar quarter period implementing this Subpart W.
				Eligibility for 40/30 certification required eight consecutive calendar
				quarters of Subpart I compliance monitoring results, unless the supplier was on
				reduced monitoring under Subpart I and needed not monitor. If the supplier did
				not monitor, the supplier was to base its eligibility on compliance samples
				during the preceding 12 months.
BOARD NOTE: Implementing this Subpart W occurred in stages
				  from October 1, 2006 through October 1, 2014. The monitoring for 40/30
				  certification began either January 2004 or January 2005, depending on
				  population served and other factors. See
				  40 CFR
				  141.600(c) and
				  141.603(a). The
				  Board removed the now-obsolete implementation dates.
b) 40/30 Certification
1) A supplier was to certify to the Agency
				that no compliance sample under Subpart I during the applicable period under
				subsection (a) exceeded
				0.040 mg/L for TTHM or
				0.030 mg/L for HAA5, and the
				supplier had no TTHM or HAA5 monitoring violations during the period under
				subsection (a).
2) The Agency could
				require the supplier to submit compliance monitoring results, distribution
				system schematics, or recommended Subpart Y compliance monitoring locations in
				addition to the supplier's certification. If the supplier failed to submit the
				Agency-requested information, the Agency could require standard monitoring
				under Section 611.921 or a system-specific
				study under Section 611.922.
3) The Agency could still require standard
				monitoring under Section
				611.921 or a system-specific
				study under Section 611.922 even if the supplier met
				the criteria in subsection (a).
4)
				The supplier was to retain a complete copy of its certification under this
				Section for ten years after submitting it to the Agency. The supplier was to
				make the certification, all data upon which it based the certification, and any
				Agency notification available for Agency or public review.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart W - INITIAL DISTRIBUTION SYSTEM EVALUATIONS › Section 611.924 - Very Small System Waivers

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				If the supplier serves fewer than 500 people and it has taken TTHM and HAA5
				samples under Subpart I, the supplier is not required to comply with this
				Subpart W unless the Agency notifies the supplier, by a SEP, that it must
				conduct standard monitoring under Section
				611.921 or a
				system-specific study under Section
				611.922.
b) If the supplier has not taken TTHM and
				HAA5 samples under Subpart I or if the Agency notifies the supplier, by a SEP,
				that it must comply with this Subpart W, the supplier must conduct standard
				monitoring under Section
				611.921 or a
				system-specific study under Section 611.922.
BOARD NOTE: Derived from
					 40 CFR
					 141.604.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.950 - General Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) The
				requirements of this Subpart X constitute national primary drinking water
				regulations. These regulations establish requirements for filtration and
				disinfection that are in addition to criteria under which filtration and
				disinfection are required under Subpart B. The regulations in this Subpart X
				establish or extend treatment technique requirements in lieu of maximum
				contaminant levels for the following contaminants: Giardia lamblia, viruses,
				heterotrophic plate count bacteria, Legionella, Cryptosporidium, and turbidity.
				The treatment technique requirements consist of installing and properly
				operating water treatment processes that reliably achieve the following:
1) At least 99 percent (2-log) removal of
				Cryptosporidium between a point where the raw water is not subject to
				recontamination by surface water runoff and a point downstream before or at the
				first customer for filtered systems, or Cryptosporidium control under the
				watershed control plan for unfiltered systems; and
2) Compliance with the profiling and
				benchmark requirements in Sections
				611.953 and
				611.954.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.951 - Finished Water Reservoirs

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Applicability. A Subpart B system supplier that serves fewer than 10,000
				persons is subject to this requirement.
b) Requirements. If a supplier begins
				construction of a finished water reservoir on or after March 15, 2002, the
				reservoir must be covered. A finished water reservoir for which a supplier
				began construction prior to March 15, 2002 is not subject to this
				requirement.
BOARD NOTE: Derived from
				  40
				  CFR 141.510 and
				  141.511(2002).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.952 - Additional Watershed Control Requirements for Unfiltered Systems

Current through Register Vol. 48, No. 28, July 12, 2024
a) Applicability. A
				Subpart B system supplier that serves fewer than 10,000 persons that does not
				provide filtration must continue to comply with all of the filtration avoidance
				criteria in Sections
				611.211 and
				611.230
				through
				611.233,
				as well as the additional watershed control requirements in subsection
				(b).
b) Requirements to Avoid
				Filtration. A supplier must take any additional steps necessary to minimize the
				potential for contamination by Cryptosporidium oocysts in the source water. A
				watershed control program must fulfill the following for Cryptosporidium:
1) The program must identify watershed
				characteristics and activities that may have an adverse effect on source water
				quality; and
2) The program must
				monitor the occurrence of activities that may have an adverse effect on source
				water quality.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.953 - Disinfection Profile

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Applicability. 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. A Subpart B community or non-transient non-community water
				system that serves fewer than 10,000 persons must develop a disinfection
				profile unless the Agency, by a SEP, determines that a profile is unnecessary.
				The Agency may approve the use of a more representative data set for
				disinfection profiling than the data set required under subsections (c) through
				(g).
b) Determination That a
				Disinfection Profile Is Not Necessary. The Agency may only determine that a
				disinfection profile is not necessary if the system's TTHM and HAA5 levels are
				below 0.064 mg/l and 0.048 mg/l, respectively. To determine these levels, TTHM
				and HAA5 samples must have been collected during the month with the warmest
				water temperature, and at the point of maximum residence time in the
				distribution system. The Agency may, by a SEP, approve the use of a different
				data set to determine these levels if it determines that the data set is
				representative TTHM and HAA5 data.
c) Development of a Disinfection Profile. A
				disinfection profile consists of the following three steps:
1) First, the supplier must collect data for
				several parameters from the plant, as discussed in subsection (d), over the
				course of 12 months;
2) Second, the
				supplier must use this data to calculate weekly log inactivation as discussed
				in subsections (e) and (f); and
3)
				Third, the supplier must use these weekly log inactivations to develop a
				disinfection profile as specified in subsection (g).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.954 - Disinfection Benchmark

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Applicability. A Subpart B system supplier that must develop a disinfection
				profile under Section
				611.953 must develop a
				disinfection benchmark if it decides to significantly change its disinfection
				practice. The supplier must receive a SEP from the Agency approving a
				significant change before implementing the change in its disinfection
				practice.
b) Significant Changes to
				Disinfection Practice. Certain changes are significant changes to disinfection
				practice:
1) Changing the point for applying
				disinfectant;
2) Changing the
				applied disinfectant;
3) Changing
				the disinfection process; or
4) Any
				other modification the Agency identifies.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.955 - Combined Filter Effluent Turbidity Limits

Current through Register Vol. 48, No. 28, July 12, 2024
a) Applicability. A Subpart B system supplier
				that serves fewer than 10,000 persons, which is required to filter, and which
				utilizes filtration other than slow sand filtration or diatomaceous earth
				filtration must meet the combined filter effluent turbidity requirements of
				subsections (b) through (d). If the supplier uses slow sand or diatomaceous
				earth filtration the supplier is not required to meet the combined filter
				effluent turbidity limits of this Subpart X, but the supplier must continue to
				meet the combined filter effluent turbidity limits in Section
				611.250.
b) Combined Filter Effluent Turbidity Limits.
				A supplier must meet two strengthened combined filter effluent turbidity
				limits.
1) The first combined filter effluent
				turbidity limit is a "95th percentile" turbidity
				limit that a supplier must meet in at least 95 percent of the turbidity
				measurements taken each month. Measurements must continue to be taken as
				described in Sections
				611.531
				and
				611.533. Monthly
				reporting must be completed according to Section
				611.957(a).
				The following are the required limits for specific filtration technologies:
A) For a system with conventional filtration
				or direct filtration, the 95th percentile turbidity
				value is 0.3 NTU.
B) For a system
				with any other alternative filter technology, the
				95th percentile turbidity value is a value (not to
				exceed 1 NTU) to be determined by the Agency, by a SEP, based on the
				demonstration described in subsection (c).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.956 - Individual Filter Turbidity Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) Applicability. A Subpart B system supplier
				that serves fewer than 10,000 persons and utilizing conventional filtration or
				direct filtration must conduct continuous monitoring of turbidity for each
				individual filter in a supplier's system. The following requirements apply to
				continuous turbidity monitoring:
1)
				Monitoring must be conducted using an approved method in Section
				611.531;
2) Calibration of turbidimeters must be
				conducted using procedures specified by the manufacturer;
3) Results of turbidity monitoring must be
				recorded at least every 15 minutes;
4) Monthly reporting must be completed
				according to Section
				611.957(a);
				and
5) Records must be maintained
				according to Section
				611.957(b).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart X - ENHANCED FILTRATION AND DISINFECTION - SYSTEMS SERVING FEWER THAN 10,000 PEOPLE › Section 611.957 - Reporting and Recordkeeping Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) Reporting. This Subpart X requires a
				supplier to report several items to the Agency. Subsections (a)(1) through
				(a)(4) describe the items that must be reported and the frequency of reporting.
				(The supplier is required to report the information described in subsections
				(a)(1) through (a)(4), if it is subject to the specific requirement indicated.)
1) If a supplier is subject to the combined
				filter effluent requirements (Section
				611.955
				), it must report as follows:
A) The total
				number of filtered water turbidity measurements taken during the month, by the
				10th of the following month.
B) The number and percentage of filtered
				water turbidity measurements taken during the month that are less than or equal
				to the supplier's required 95th percentile limit, by
				the 10th of the following month.
C) The date and value of any turbidity
				measurements taken during the month that exceed the maximum turbidity value for
				the supplier's filtration system, by the 10th of the
				following month.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.970 - General Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				General. The requirements of this Subpart Y constitute NPDWRs. The regulations
				in this Subpart Y establish monitoring and other requirements for achieving
				compliance with MCLs based on LRAAs for TTHM and HAA5, and for achieving
				compliance with MRDLs for chlorine and chloramine for certain consecutive
				systems.
b) Applicability. A
				supplier is subject to these requirements if its system is a CWS or a NTNCWS
				that uses a primary or residual disinfectant other than ultraviolet light or
				which delivers water that has been treated with a primary or residual
				disinfectant other than ultraviolet light.
c) A supplier must comply with the
				requirements in this Subpart Y as follows:
1)
				The supplier's monitoring frequency is specified in Section
				611.971(a)(2).
A) If a supplier is required to conduct
				quarterly monitoring, it must begin monitoring in the first full calendar
				quarter that includes the applicable compliance date set forth in this
				subsection (c).
B) If a supplier is
				required to conduct monitoring less frequently than quarterly, it must begin
				monitoring in the calendar month recommended in the IDSE report prepared under
				Section
				611.921 or
				Section
				611.922
				or in the calendar month identified in the Subpart Y monitoring plan developed
				under Section
				611.972,
				but in no instance later than 12 months after the applicable compliance date
				set forth in this subsection (c).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.972 - Subpart Y Monitoring Plan

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Development of a Monitoring Plan
1) A
				supplier must develop and implement a monitoring plan that it must keep on file
				for Agency and public review. The monitoring plan must contain the following
				elements, and it must be complete no later than the date when the supplier
				conducts its initial monitoring under this Subpart Y:
A) The monitoring locations;
B) The monitoring dates;
C) The compliance calculation procedures;
				and
D) The monitoring plans for any
				other systems in the combined distribution system if the Agency has reduced
				monitoring requirements under Section
				611.161.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.974 - Additional Requirements for Consecutive Systems

Current through Register Vol. 48, No. 28, July 12, 2024
If a supplier has a consecutive system that does not add a
				  disinfectant but which delivers water that has been treated with a primary or
				  residual disinfectant other than ultraviolet light, it must comply with the
				  analytical and monitoring requirements for chlorine and chloramines in Sections
				  611.381(c)
				  and
				  611.382(c)(1)
				   and with the compliance requirements in
				  Section
				  611.383(c)(1),
				  and the supplier must report monitoring results pursuant to Section
				  611.384(c).
BOARD NOTE: Derived from
				  40 CFR
				  141.624(2012).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.975 - Conditions Requiring Increased Monitoring

Current through Register Vol. 48, No. 28, July 12, 2024
a) If a supplier is required to monitor at a
				particular location annually or less frequently than annually pursuant to
				Section
				611.971 or
				Section
				611.973, it
				must increase monitoring to dual sample sets once per quarter (taken every 90
				days) at all locations if a TTHM sample exceeds 0.080 mg/l or an HAA5 sample
				exceeds 0.060 mg/l at any location.
b) A supplier is in violation of the MCL when
				the LRAA exceeds the Subpart Y MCLs in Section
				611.312(b)(2),
				calculated based on four consecutive quarters of monitoring (or the LRAA
				calculated based on fewer than four quarters of data if the MCL would be
				exceeded regardless of the monitoring results of subsequent quarters). The
				supplier is in violation of the monitoring requirements for each quarter that a
				monitoring result would be used in calculating an LRAA if it fails to
				monitor.
c) A supplier may return
				to routine monitoring once it has conducted increased monitoring for at least
				four consecutive quarters, and the LRAA for every monitoring location does not
				exceed 0.060 mg/l for TTHM and 0.045 mg/l for HAA5.
BOARD NOTE: Derived from
				  40 CFR
				  141.625(2006).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.976 - Operational Evaluation Levels

Current through Register Vol. 48, No. 28, July 12, 2024
a) A supplier has exceeded the operational
				evaluation level at any monitoring location where the sum of the two previous
				quarters' TTHM results plus twice the current quarter's TTHM result, divided by
				four to determine an average, exceeds 0.080 mg/l, or where the sum of the two
				previous quarters' HAA5 results plus twice the current quarter's HAA5 result,
				divided by four to determine an average, exceeds 0.060 mg/l.
b) Effects of Exceeding the Operational
				Evaluation Level
1) If a supplier exceeds the
				operational evaluation level, the supplier must conduct an operational
				evaluation and submit a written report of the evaluation to the Agency no later
				than 90 days after being notified of the analytical result that causes it to
				exceed the operational evaluation level. The written report must be made
				available to the public upon request.
2) The supplier's operational evaluation must
				include an examination of system treatment and distribution operational
				practices, including storage tank operations, excess storage capacity,
				distribution system flushing, changes in sources or source water quality, and
				treatment changes or problems that may contribute to TTHM and HAA5 formation
				and what steps could be considered to minimize future exceedances.
A) A supplier may request and the Agency may
				allow the supplier to limit the scope of its evaluation if the supplier is able
				to identify the cause of the operational evaluation level exceedance.
B) A supplier's request to limit the scope of
				the evaluation does not extend the schedule in subsection (b)(1) for submitting
				the written report. The Agency must approve this limited scope of evaluation in
				writing, and the supplier must keep that approval with the completed report.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.977 - Requirements for Remaining on Reduced TTHM and HAA5 Monitoring Based on Subpart I Results

Current through Register Vol. 48, No. 28, July 12, 2024
A supplier may remain on reduced monitoring after the
				  applicable dates identified in Section
				  611.970(c)
				  for compliance with this Subpart Y only if the supplier fulfills each of the
				  requirements set forth in subsections (a) through (c), subject to the
				  limitations of subsection (d):
a) The
				supplier qualifies for a 40/30 certification pursuant to Section
				611.923 or it
				has received a very small system waiver pursuant to Section
				611.924;
b) The supplier meets the reduced monitoring
				criteria set forth in Section
				611.973(a);
c) The supplier does not change or add
				monitoring locations from those used for compliance monitoring under Subpart I;
				and
d) If the supplier's monitoring
				locations pursuant to this Subpart Y differ from its monitoring locations
				pursuant to Subpart I, the supplier may not remain on reduced monitoring after
				the dates identified in Section
				611.970(c)
				for the purposes of compliance with this Subpart Y.
BOARD NOTE: Derived from
					 40
					 CFR 141.627
					 (2016).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.978 - Requirements for Remaining on Increased TTHM and HAA5 Monitoring Based on Subpart I Results

Current through Register Vol. 48, No. 28, July 12, 2024
If a supplier was on increased monitoring pursuant to Section
				  611.382(b)(1),
				  it must remain on increased monitoring until it qualifies for a return to
				  routine monitoring pursuant to Section
				  611.975(c).
				  The supplier must conduct increased monitoring pursuant to Section
				  611.975
				  at the monitoring locations in the monitoring plan developed pursuant to
				  Section
				  611.972
				  beginning at the applicable date identified in Section
				  611.970(c)
				  for compliance with this Subpart Y, and it must remain on increased monitoring
				  until the supplier qualifies for a return to routine monitoring pursuant to
				  Section
				  611.975(c).
BOARD NOTE: Derived from
				  40
				  CFR
				  141.628(2006).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Y - STAGE 2 DISINFECTION BYPRODUCTS REQUIREMENTS › Section 611.979 - Reporting and Recordkeeping Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) Reporting
1) A supplier must report the following
				information to the Agency within ten days after the end of any quarter in which
				monitoring is required for each monitoring location:
A) The number of samples taken during the
				last quarter;
B) The date and
				results of each sample taken during the last quarter;
C) The arithmetic average of quarterly
				results for the last four quarters for each monitoring location (LRAA),
				beginning at the end of the fourth calendar quarter that follows the compliance
				date and at the end of each subsequent quarter. If the LRAA calculated based on
				fewer than four quarters of data would cause the MCL to be exceeded regardless
				of the monitoring results of subsequent quarters, the supplier must report this
				information to the Agency as part of the first report due following the
				compliance date or anytime thereafter that this determination is made. If the
				supplier is required to conduct monitoring at a frequency that is less than
				quarterly, it must make compliance calculations beginning with the first
				compliance sample taken after the compliance date, unless the supplier is
				required to conduct increased monitoring under Section
				611.975;
D) A statement whether, based on Section
				611.312(b)(2)
				and this Subpart Y, the MCL was violated at any monitoring location;
				and
E) Any operational evaluation
				levels that were exceeded during the quarter and, if so, the location and date,
				and the calculated TTHM and HAA5 levels.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1000 - General Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
a) The
				requirements of this Subpart Z are NPDWRs. The regulations in this Subpart Z
				establish or extend treatment technique requirements in lieu of maximum
				contaminant levels for Cryptosporidium. These requirements are in addition to
				requirements for filtration and disinfection in Subparts B, R, and X of this
				Part.
b) Applicability. The
				requirements of this Subpart Z apply to all Subpart B systems, which are PWSs
				supplied by a surface water source and PWSs supplied by a groundwater source
				under the direct influence of surface water.
1) A wholesale system supplier, as defined in
				Section
				611.102,
				must comply with the requirements of this Subpart Z based on the population of
				the largest system in the combined distribution system.
2) The requirements of this Subpart Z for
				filtered system suppliers apply to a supplier required by NPDWRs to provide
				filtration treatment, whether or not the supplier is currently operating a
				filtration system.
3) The
				requirements of this Subpart Z for an unfiltered system supplier apply only to
				an unfiltered system supplier that timely met and has continued to meet the
				filtration avoidance criteria in Subparts B, R, and X of this Part, as
				applicable.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1002 - Source Water Monitoring Requirements: Sampling Schedules

Current through Register Vol. 48, No. 28, July 12, 2024
a) A supplier required to conduct source
				water monitoring under Section
				611.1001 must submit a sampling
				schedule that specifies the calendar dates on which it will collect each
				required sample.
1) The supplier must submit
				sampling schedules no later than three months prior to the applicable date
				listed in Section 611.1001(c) for
				each round of required monitoring.
2) Submission of the Sampling Schedule to
				USEPA
A) A supplier serving 10,000 or more
				people must submit its sampling schedule for the initial round of source water
				monitoring under Section
				611.1001(a) to
				USEPA electronically into the Data Collection and Tracking System (DCTS)
				through USEPA's Central Data Exchange (CDX).
BOARD NOTE: The supplier must register with the CDX to use
				  the DCTS. For information see "Step-by-Step Guide to the Data Collection and
				  Tracking System (DCTS)", USEPA, Office of Water (4606) (document number EPA
				  815/B-08-001), available from USEPA, National Center for Environmental
				  Publications,
www.epa.gov/nscep
(search
				  "815B08001"); telephone 888-890-1995; or e-mail helpdesk@epacdx.net.
B) If a supplier is unable to
				submit the sampling schedule into the DCTS, the supplier may use an alternative
				approach for submitting the sampling schedule that USEPA has approved in
				writing.
3) A supplier
				serving fewer than 10,000 people must submit to the Agency its sampling
				schedules for the initial round of source water monitoring Section
				611.1001(a).
4) A supplier must submit to the Agency
				sampling schedules for the second round of source water monitoring required by
				Section 611.1001(b).
5) If USEPA or the Agency does not respond to
				a supplier regarding its sampling schedule, the supplier must sample at the
				reported schedule.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1003 - Source Water Monitoring Requirements: Sampling Locations

Current through Register Vol. 48, No. 28, July 12, 2024
a) A supplier required to conduct source
				water monitoring under Section
				611.1001
				must collect samples for each plant that treats a surface water or groundwater
				under the direct influence of surface water source. Where multiple plants draw
				water from the same influent, such as the same pipe or intake, the Agency may,
				by a SEP issued under Section
				611.110,
				approve one set of monitoring results to be used to satisfy the requirements of
				Section
				611.1001
				for all of the plants.
b) Source
				Water Sampling
1) A supplier must collect
				source water samples prior to chemical treatment, such as coagulants, oxidants,
				and disinfectants, unless the supplier meets the condition of subsection
				(b)(2).
2) The Agency may, by a
				SEP, approve a supplier to collect a source water sample after chemical
				treatment. To grant this approval, the Agency must determine that collecting a
				sample prior to chemical treatment is not feasible for the supplier and that
				the chemical treatment is unlikely to have a significant adverse effect on the
				analysis of the sample.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1004 - Source Water Monitoring Requirements: Analytical Methods

Current through Register Vol. 48, No. 28, July 12, 2024
a) Cryptosporidium. A supplier must analyze
				for Cryptosporidium using USEPA 1623 (05), USEPA 1623.1(12), or USEPA 1622
				(05), each incorporated by reference in Section
				611.102,
				or alternative methods approved by the Agency under Section
				611.480.
1) The supplier must analyze at least a 10 l
				sample or a packed pellet volume of at least 2 ml as generated by the methods
				listed in subsection (a). A supplier unable to process a 10 l sample must
				analyze as much sample volume as can be filtered by two filters approved by
				USEPA for the methods listed in subsection (a), up to a packed pellet volume of
				at least 2 ml.
2) Matrix Spike (MS)
				Samples
A) MS samples, as required by the
				methods in subsection (a), must be spiked and filtered by a laboratory approved
				for Cryptosporidium analysis under Section
				611.1005.
B) If the volume of the MS sample is greater
				than 10 l, the supplier may filter all but 10 l of the MS sample in the field,
				and ship the filtered sample and the remaining 10 l of source water to the
				laboratory. In this case, the laboratory must spike the remaining 10 l of water
				and filter it through the filter used to collect the balance of the sample in
				the field.
3) Flow
				cytometer-counted spiking suspensions must be used for MS samples and ongoing
				precision and recovery samples.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1005 - Source Water Monitoring Requirements: Approved Laboratories

Current through Register Vol. 48, No. 28, July 12, 2024
a) Cryptosporidium.
				A supplier must have Cryptosporidium samples analyzed by a laboratory that is
				approved under USEPA's Laboratory Quality Assurance Evaluation Program for
				Analysis of Cryptosporidium in Water or a certified laboratory in one of the
				categories listed in Section
				611.490(a)
				that has been certified for Cryptosporidium analysis.
b) E. coli. Any laboratory certified by the
				National Environmental Laboratory Accreditation Conference, or by a certified
				laboratory in one of the categories listed in Section
				611.490(a)
				that has been certified for total coliform or fecal coliform analysis pursuant
				to Section
				611.531,
				is approved for E. coli analysis pursuant to this Subpart Z when the laboratory
				uses the same technique for E. coli that the laboratory uses for the purposes
				of Section 611.531.
c) Turbidity.
				Measurements of turbidity must be made by a party approved by the
				Agency.
BOARD NOTE: Derived from
				  40 CFR
				  141.705(2013).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 611 - PRIMARY DRINKING WATER STANDARDS › Subpart Z - ENHANCED TREATMENT FOR CRYPTOSPORIDIUM › Section 611.1006 - Source Water Monitoring Requirements: Reporting Source Water Monitoring Results

Current through Register Vol. 48, No. 28, July 12, 2024
a) A
				supplier must report results from the source water monitoring required under
				Section 611.1001 no later than ten days
				after the end of the first month following the month when the sample is
				collected.
b) Submission of
				Analytical Results to USEPA
1) A supplier
				serving at least 10,000 people must report the results from the initial source
				water monitoring required under Section
				611.1001(a) to
				the Data Collection and Tracking System (DCTS) through USEPA's Central Data
				Exchange (CDX).
BOARD NOTE: The supplier must register with the CDX to use
				  the DCTS. For information see "Step-by-Step Guide to the Data Collection and
				  Tracking System (DCTS)", USEPA, Office of Water (4606) (document number EPA
				  815/B-08-001), available from USEPA, National Center for Environmental
				  Publications,
www.epa.gov/nscep
(search
				  "815B08001"); telephone 888-890-1995; e-mail epacdx@csc.com ("Technical
				  Support" in the subject line); or fax 301-429-3905.
2) If a supplier is unable to report
				monitoring results into the DCTS, the supplier may use an alternative approach
				for reporting monitoring results that USEPA has approved in writing.