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The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

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Violations

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Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1911006	Open	22-AUG-2025	-	No
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	1911003	Open	02-JUL-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1911005	Returned to Compliance	01-JUL-2025	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	1911002	Returned to Compliance	17-OCT-2024	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1911001	Open	19-FEB-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1911000	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	1910999	Returned to Compliance	01-JAN-2022	31-JAN-2022	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1910997	Returned to Compliance	01-JUL-2017	31-DEC-2017	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1910996	Returned to Compliance	01-JAN-2017	30-JUN-2017	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1910995	Returned to Compliance	01-MAR-2016	31-MAR-2016	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	1910994	Returned to Compliance	01-JAN-2016	31-MAR-2016	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	1723893	Known	01-MAR-1993	31-MAR-1993	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1723793	Known	01-MAR-1993	31-MAR-1993	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	1910993	Returned to Compliance	07-DEC-1992	-	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1507792	Known	01-APR-1992	30-APR-1992	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1887128	1911002	SOX	State Compliance achieved	10-DEC-2025	State	-
1887128	1911005	SOX	State Compliance achieved	10-DEC-2025	State	-
1887125	1911006	SIA	State Violation/Reminder Notice	24-SEP-2025	State	-
1887123	1911003	SIE	State Public Notification requested	03-JUL-2025	State	-
1887119	1911001	SIA	State Violation/Reminder Notice	17-APR-2023	State	-
1887118	1910999	SIF	State Public Notification received	28-JUL-2022	State	-
1887117	1911000	SOX	State Compliance achieved	01-MAR-2022	State	-
1887107	1910996	SOX	State Compliance achieved	09-JUL-2018	State	07/10/2018: Received the WQPR form for 2018E61. JL
1887107	1910997	SOX	State Compliance achieved	09-JUL-2018	State	07/10/2018: Received the WQPR form for 2018E61. JL
1887100	1910994	SIF	State Public Notification received	06-JUN-2016	State	-
1887101	1910995	SIF	State Public Notification received	06-JUN-2016	State	-
1887094	1910993	SOX	State Compliance achieved	30-DEC-1993	State	-
1886893	1723893	SIE	State Public Notification requested	29-APR-1993	State	-
1886893	1723793	SIE	State Public Notification requested	29-APR-1993	State	-
1253892	1507792	SIF	State Public Notification received	19-JUN-1992	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 01-CHICAGO WATER TO ROOSEVELT PS	25817	Yes	Consecutive Connection	Surface water	Permanent	Active
CC02-CHICAGO WATER AT LARAMIE BS	41567	Yes	Consecutive Connection	Surface water	Permanent	Active
CICERO	23329	No	Distribution System/Zone	-	-	Active
IDSE	34719	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	46965	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46971	No	Distribution System/Zone	-	-	Active
PF 02-LARAMIE AVE. BOOSTER STATION	22720	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	26988	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29410	No	Sampling Station	-	-	Active
GR01-TP01 200K GROUND STORAGE	12590	No	Storage	-	-	Active
ELEV01-2 MG ELEVATED TANK	44889	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	10948	No	Storage	-	-	Inactive
DISTRIBUTION ELEVATED STORAGE	34189	No	Storage	-	-	Inactive
TP 01-ROOSEVELT PUMPING STATION	31848	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-ROOSEVELT PUMPING STATION	31848	Gaseous Chlorination, Pre	Disinfection

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