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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	TTHM	5288599	Returned to Compliance	01-JUL-2025	30-SEP-2025	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	5288598	Returned to Compliance	30-DEC-2020	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	5288597	Returned to Compliance	01-JUL-2012	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	5288595	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	5288596	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
TT	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Lead and Copper Rule	5288201	Returned to Compliance	01-JAN-2001	31-MAR-2001	Yes
TT	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Lead and Copper Rule	5288101	Returned to Compliance	01-OCT-2000	31-DEC-2000	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	3955297	Returned to Compliance	01-JUL-1997	31-DEC-1997	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	1915093	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
7959909	5288599	SOX	State Compliance achieved	08-DEC-2025	State	-
7959906	5288598	SOX	State Compliance achieved	21-JAN-2021	State	-
7959904	5288597	SOX	State Compliance achieved	20-JUN-2013	State	-
7959902	5288595	SOX	State Compliance achieved	15-OCT-2007	State	-
7959902	5288596	SOX	State Compliance achieved	15-OCT-2007	State	-
499301	5288101	SOX	State Compliance achieved	31-MAR-2001	State	-
499301	5288201	SOX	State Compliance achieved	31-MAR-2001	State	-
7959899	3955297	SOX	State Compliance achieved	16-APR-1999	State	-
494	1915093	SOX	State Compliance achieved	27-DEC-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 02-ELMWOOD PARK CONNECT (EMERGENCY)	31785	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 03-FRANKLIN PARK CONNECT (EMERGENCY)	31786	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 01-MASTER METER	25896	Yes	Consecutive Connection	Surface water	Permanent	Active
RIVER GROVE	23403	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46470	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46471	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27062	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29484	No	Sampling Station	-	-	Active
RIVER GROVE 1.25 MG GROUND STORAGE TANK	44740	No	Storage	-	-	Active
RIVER GROVE 30 K GROUND STROAGE TANK	44741	No	Storage	-	-	Active
RIVER GROVE 500 K ELEVATED TANK	44742	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11001	No	Storage	-	-	Inactive
DISTRIBUTION GROUND STORAGE	12064	No	Storage	-	-	Inactive
TAP 01 GROUND STORAGE	31796	No	Storage	-	-	Inactive
TP 01-THATCHER AVENUE PUMP STATION	31932	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-THATCHER AVENUE PUMP STATION	31932	Gaseous Chlorination, Post	Disinfection

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