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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	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2732911	Open	01-JUL-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2732910	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2732909	Returned to Compliance	01-JUL-2023	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	2732907	Returned to Compliance	01-JUL-2006	31-DEC-2006	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	2732794	Returned to Compliance	01-JAN-1994	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	1913693	Returned to Compliance	07-DEC-1992	-	Yes

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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
4924914	2732911	SIA	State Violation/Reminder Notice	21-OCT-2025	State	-
4924913	2732910	SOX	State Compliance achieved	07-FEB-2025	State	-
4924912	2732909	SOX	State Compliance achieved	28-JUN-2024	State	-
4924907	2732907	SOX	State Compliance achieved	16-JAN-2007	State	-
4924595	2732794	SOX	State Compliance achieved	27-MAR-1995	State	-
736594	1913693	SOX	State Compliance achieved	04-NOV-1993	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 03-EMERG CONNECTION WITH NILES	32855	Yes	Consecutive Connection	Ground water	Emergency	Active
CC 05-EMERG CONNECTION WITH SKOKIE	32861	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 04-EMERG CONNECTION WITH NILES	32862	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 06-NORTH PS WATER FROM MG-N COMMISSIO	41550	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 07-SOUTH PS WATER FROM MG-N COMMISSIO	41551	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 02-SOUTH PUMPING STA FROM CHICAGO	14778	Yes	Consecutive Connection	Surface water	Permanent	Inactive
CC 01-NORTH PUMPING STA FROM CHICAGO	25869	Yes	Consecutive Connection	Surface water	Permanent	Inactive
MORTON GROVE	23378	No	Distribution System/Zone	-	-	Active
IDSE	34656	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45897	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45898	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27037	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29459	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47037	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47038	No	Sampling Station	-	-	Active
ELEV1-300K GALLON ELEVATED TANK	10985	No	Storage	-	-	Active
GR01-2.5 MG GROUND STORAGE @ TP01	33099	No	Storage	-	-	Active
GR02-5.0 MG GROUND STORAGE @ TP02	33100	No	Storage	-	-	Active
ELEV2-750K GALLON ELEVATED TANK	44276	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12044	No	Storage	-	-	Inactive
TP 01-NORTH PUMPING STA TREATMENT	32402	No	Treatment Plant	-	-	Active
TP 02-SOUTH PUMPING STA TREATMENT	32775	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-NORTH PUMPING STA TREATMENT	32402	Gaseous Chlorination, Post	Disinfection
TP 02-SOUTH PUMPING STA TREATMENT	32775	Gaseous Chlorination, Post	Disinfection

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