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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
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7014510	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7014509	Returned to Compliance	30-DEC-2020	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	7014204	Returned to Compliance	01-DEC-2003	31-DEC-2003	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	2226993	Returned to Compliance	01-JAN-1993	-	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7014080	Known	30-JUN-1977	29-JUN-1981	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
2639616	7014510	SIF	State Public Notification received	13-MAY-2024	State	-
2639612	7014509	SOX	State Compliance achieved	15-JAN-2021	State	-
2639104	7014204	SIF	State Public Notification received	04-JUN-2004	State	-
2638494	2226993	SOX	State Compliance achieved	05-FEB-1994	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 04-EMERG CONNECT WITH HIGHLAND PARK	32668	Yes	Consecutive Connection	Ground water	Emergency	Active
INTAKE (01423) NEW INTAKE	32960	Yes	Intake	Surface water	Permanent	Active
INTAKE (00130) OLD INTAKE	25515	Yes	Intake	Surface water	Permanent	Active
CC 05-EMERG CONNECT WITH GLENVIEW	32671	Yes	Consecutive Connection	Ground water	Emergency	Active
CC 03-EMERG CONNECT WITH GLENCOE	32667	Yes	Consecutive Connection	Surface water	Emergency	Active
NORTHBROOK	23382	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46007	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	46008	No	Distribution System/Zone	-	-	Active
PF 01-WEST BOOSTER STATION	34031	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	27041	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29463	No	Sampling Station	-	-	Active
SSIN01423, IN00130	33602	No	Sampling Station	-	-	Active
SAMPLE STATION	35043	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	45496	No	Sampling Station	-	-	Active
DISTRIBUTION ELEVATED STORAGE	10989	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12048	No	Storage	-	-	Active
TAP 01 GROUND STORAGE	32666	No	Storage	-	-	Active
TP 01-SURFACE TREATMENT PLANT	14780	No	Treatment Plant	-	-	Active
TP 02-BOOSTER STATION	32665	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-SURFACE TREATMENT PLANT	14780	Gaseous Chlorination, Pre	Taste / odor control
TP 01-SURFACE TREATMENT PLANT	14780	Fluoridation	Other
TP 01-SURFACE TREATMENT PLANT	14780	Gaseous Chlorination, Pre	Disinfection
TP 01-SURFACE TREATMENT PLANT	14780	Permanganate	Taste / odor control
TP 01-SURFACE TREATMENT PLANT	14780	Inhibitor, Orthophosphate	Corrosion control
TP 01-SURFACE TREATMENT PLANT	14780	Coagulation	Inorganics removal
TP 01-SURFACE TREATMENT PLANT	14780	Activated Carbon, Powdered	Disinfection by-products control
TP 01-SURFACE TREATMENT PLANT	14780	Hypochlorination, Pre	Disinfection
TP 01-SURFACE TREATMENT PLANT	14780	Activated Carbon, Powdered	Organics removal
TP 01-SURFACE TREATMENT PLANT	14780	Flocculation	Particulate removal
TP 01-SURFACE TREATMENT PLANT	14780	Rapid Mix	Particulate removal
TP 01-SURFACE TREATMENT PLANT	14780	Sedimentation	Particulate removal
TP 01-SURFACE TREATMENT PLANT	14780	Filtration, Rapid Sand	Particulate removal
TP 01-SURFACE TREATMENT PLANT	14780	Coagulation	Particulate removal

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