Illinois Administrative Code

Section 611.956 Individual Filter Turbidity Requirements 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 …

Section 611.957 Reporting and Recordkeeping Requirements 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…

Section 611.970 General Requirements 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 w…

Section 611.971 Routine Monitoring a) Monitoring 1) If a supplier submitted an IDSE report, it must begin monitoring at the locations and during the months that the supplier has recommended in its IDSE report submitted under Section 611.925, following the schedule in Section 611.…

Section 611.972 Subpart Y Monitoring Plan 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 lat…

Section 611.973 Reduced Monitoring a) A supplier may reduce monitoring to the level specified in the applicable of subsections (a)(1) through (a)(13), subject to the limitation of subsection (a)(14), any time the LRAA is 0.040 mg/ℓ or less for TTHM and 0.030 mg/ℓ or less for HAA5…

Section 611.974 Additional Requirements for Consecutive Systems 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 ana…

Section 611.975 Conditions Requiring Increased Monitoring 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 (t…

Section 611.976 Operational Evaluation Levels 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, exc…

Section 611.977 Requirements for Remaining on Reduced TTHM and HAA5 Monitoring Based on Subpart I Results 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 …

Section 611.978 Requirements for Remaining on Increased TTHM and HAA5 Monitoring Based on Subpart I Results 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 pu…

Section 611.979 Reporting and Recordkeeping Requirements 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…

Section 611.APPENDIX A Regulated Contaminants Microbiological Contaminants Contaminant (units): Total Coliform Bacteria Traditional MCL in mg/ℓ: TT To convert for CCR, multiply by: MCL in CCR units: TT MCLG: N/A Major sources in drinking water: Naturally present in the environmen…

Section 611.TABLE Z Federal Effective Dates The following are the effective dates of the various federal NPDWRs: Fluoride (40 CFR 141.62(b)(1)) (corresponding with Section 611.301(b)) October 2, 1987 Phase I VOCs (40 CFR 141.61(a)(1) through (a)(8)) (corresponding with Section 61…

Section 615.101 Purpose This Part specifies the requirements and standards for the protection of groundwater for certain types of existing facilities or units located wholly or partially within a setback zone regulated by the Act or within a regulated recharge area under Section …

Section 615.102 Definitions Except as stated in this Section, and unless a different meaning of a word or term is clear from the context, the definitions of words or terms in this Part are the same as those used in the Act or the Illinois Groundwater Protection Act [415 ILCS 55]:…

Section 615.103 Incorporations by Reference a) The Board incorporates the following material by reference: CFR (Code of Federal Regulations). Available from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, 202-783-3238. Method Detection Li…

Section 615.104 Prohibitions A person must not cause or allow the construction or operation of any facility or unit in violation of the Act or regulations adopted by the Board thereunder, including this Part. (Source: Amended at 47 Ill. Reg. 7581, effective May 16, 2023)

Section 615.105 General Exceptions a) This Part does not apply to any facility or unit, or to the owner or operator of any facility or unit: 1) For which the owner or operator obtains certification of minimal hazard under Section 14.5 of the Act; or 2) For which alternate require…

Section 615.201 Applicability This Subpart applies to: a) Surface impoundments subject to Subpart F; b) Pesticide storage and handling units subject to Subpart I; c) Fertilizer storage and handling units subject to Subpart J; d) Road oil storage and handling units subject to Subp…

Section 615.202 Compliance Period The compliance period is the active life of the unit, including closure and post-closure care periods. a) The active life begins when the unit first begins operation or one year after the date of first applicability, whichever occurs later, and e…

Section 615.203 Compliance with Groundwater Standards The owner or operator must comply with the groundwater standards. a) The term of compliance is the compliance period. b) Compliance must be measured at the compliance point, or compliance points if more than one such point exi…

Section 615.204 Groundwater Monitoring System a) Except as provided otherwise in subsection (b), the groundwater monitoring system must consist of a sufficient number of wells, installed at appropriate locations and depths to yield groundwater samples, that: 1) Represent the qual…

Section 615.205 Groundwater Monitoring Program The owner or operator must develop a groundwater monitoring program that consists of: a) Consistent sampling and analysis procedures that are designed to ensure monitoring results that provide a reliable indication of groundwater qua…

Section 615.206 Contaminants to be Monitored a) The owner or operator must monitor for all constituents that meet the following criteria, except as provided in subsections (b) and (c): 1) Material containing the constituents is stored, disposed of, or otherwise handled at the sit…

Section 615.207 Sampling Frequency a) The owner or operator must determine whether groundwater standards have been exceeded at each monitoring well at least quarterly during the compliance period, except as provided otherwise in subsection (b) or (c) or Section 615.209(b). b) The…

Section 615.208 Reporting The owner or operator must submit results of all monitoring required under this Subpart to the Agency within 60 days after completion of sampling. (Source: Amended at 47 Ill. Reg. 7581, effective May 16, 2023)

Section 615.209 Non-Compliance Response Program If monitoring results collected under Sections 615.206 and 615.207 show that a groundwater standard has been exceeded, the owner or operator must: a) Notify the Agency of this finding when submitting the groundwater monitoring resul…

Section 615.210 Alternate Non-Compliance Response Program If the groundwater sampling required under Section 615.207 shows that a groundwater standard has been exceeded, it is presumed that contamination from the facility or unit that is being monitored is responsible for the sta…

Section 615.211 Corrective Action Program An owner or operator required to conduct a corrective action program under this Subpart must: a) Begin corrective action within 120 days after the date on which the sample results are submitted to the Agency under Section 615.209(c). b) T…

Section 615.301 Applicability This Subpart applies to: a) Land treatment units subject to Subpart E; b) Surface impoundments subject to Subpart F; c) Pesticide storage and handling units subject to Subpart I; and d) Fertilizer storage and handling units subject to Subpart J.

Section 615.302 Closure Performance Standard The owner or operator must close the unit in a manner that: a) Controls, minimizes, or eliminates, to the extent necessary to protect human health and the environment, post-closure escape of waste, waste constituents, leachate, contami…

Section 615.303 Certification of Closure Within 60 days after the closure is complete, the owner or operator must submit to the Agency, by registered or certified mail, a certification that the unit has been closed in compliance with the closure requirements. The certification mu…

Section 615.304 Survey Plat a) Before the submission of the certification of closure of each unit, the owner or operator must record with land titles and submit to the Agency and any local zoning authority, or authority with jurisdiction over local land use, a survey plat indicat…

Section 615.305 Post-Closure Notice for Waste Disposal Units Within 60 days after certification of closure of the unit, the owner or operator of a unit subject to Subpart D or F must submit to the Agency, the County Recorder, and any local zoning authority, or authority with juri…

Section 615.306 Certification of Completion of Post-Closure Care Within 60 days after completion of the established post-closure care period, the owner or operator must submit to the Agency, by registered or certified mail, a certification that the post-closure care period for th…

Section 615.307 Post-Closure Care Period The post-closure care period is as defined at Section 615.202. SUBPART D: ON-SITE LANDFILLS

Section 615.401 Applicability This Subpart applies to existing landfill units that are located wholly or partially within a setback zone or regulated recharge area and that contain special waste or other waste generated on-site, except that this Subpart does not apply to any exis…

Section 615.402 Required Closure of Units Located Within Minimum Setback Zones A person must not cause or allow the operation within a minimum setback zone of any landfill unit after January 10, 1994. Closure of a landfill unit must be completed within three years. (Source: Amend…

Section 615.403 Required Closure of Units Located Within Maximum Setback Zones Starting two years after the effective date of the ordinance or regulation that establishes a maximum setback zone, a person must not cause or allow the operation within the maximum setback zone of any…

Section 615.404 Required Closure of Units Located Within Regulated Recharge Areas A person must not cause or allow the operation within a regulated recharge area of any landfill unit that contains special waste and for which the distance from the wellhead of the community water s…

Section 615.421 Applicability This Subpart applies to existing land treatment units that are located wholly or partially within a setback zone or regulated recharge area and that treat or dispose of special waste or other waste generated on-site, except that this Subpart does not…

Section 615.422 Required Closure of Units Located Within Minimum Setback Zones A person must not cause or allow the operation within a minimum setback zone of any land treatment unit after January 10, 1994. Closure must be completed by January 10, 1995. (Source: Amended at 47 Ill…

Section 615.423 Required Closure of Units Located Within Maximum Setback Zones Starting two years after the effective date of the ordinance or regulation that establishes a maximum setback zone, a person must not cause or allow the operation within the maximum setback zone of any…

Section 615.424 Land Treatment of Sludges in Maximum Setback Zones Nothing in this Subpart prohibits land treatment within a maximum setback zone of sludge resulting from the treatment of domestic wastewater or of sludge resulting from the treatment of water to produce potable wa…

Section 615.425 Closure and Post-Closure Care The owner or operator must comply with the requirements of Sections 615.302 and 615.303. (Source: Amended at 47 Ill. Reg. 7581, effective May 16, 2023) SUBPART F: ON-SITE SURFACE IMPOUNDMENTS

Section 615.441 Applicability This Subpart applies to existing surface impoundment units that are located wholly or partially within a setback zone or regulated recharge area and that contain special waste or other waste generated on-site, except that this Subpart does not apply …