IL0314740 · Illinois
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Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 32
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 32
Counties listed by EPA · Cook County, Illinois
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 32 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114194 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 26, 2026 · EPA return-to-compliance field December 31, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891250 January 13, 2026 Informal State Violation/Reminder Notice 1891251 January 13, 2026 Informal State Public Notification requested 1891252 March 15, 2026 Resolving State Compliance achieved 1891256 June 15, 2026 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114190 · Chlordane · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114189 · ETHYLENE DIBROMIDE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114188 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114187 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114185 · Pentachlorophenol · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114184 · Benzo(a)pyrene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114183 · HEXACHLOROBENZENE · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114182 · 2,4,5-TP · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114181 · 2,4-D · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114179 · Heptachlor epoxide · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114178 · Heptachlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114177 · LASSO · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114176 · Atrazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114175 · Aldicarb · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114174 · Carbofuran · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114173 · Aldicarb sulfone · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114172 · Aldicarb sulfoxide · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114171 · Hexachlorocyclopentadiene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114170 · Dinoseb · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114169 · Picloram · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114168 · Di(2-ethylhexyl) phthalate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114167 · Simazine · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114166 · OXAMYL · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114165 · Di(2-ethylhexyl) adipate · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114164 · Endothall · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114163 · Diquat · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114162 · Dalapon · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114161 · Toxaphene · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114160 · Methoxychlor · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114159 · BHC-GAMMA · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 7114158 · Endrin · Synthetic Organic ChemicalsNoncompliance period start January 1, 2020 · period end December 31, 2022 · first reported February 28, 2023 · EPA return-to-compliance field December 31, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 1891236 February 8, 2023 Informal State Public Notification requested 1891238 February 8, 2023 Informal State Violation/Reminder Notice 1891240 May 31, 2023 Resolving State Compliance achieved 1891239 June 20, 2023 Informal State Public Notification received
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility