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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	5076807	Open	01-JUL-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	5076806	Returned to Compliance	01-JUL-2011	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	5076805	Returned to Compliance	01-JUL-2007	31-DEC-2007	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	5076804	Returned to Compliance	01-JUL-2004	-	No
TT	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Lead and Copper Rule	5076600	Returned to Compliance	01-JAN-2000	31-MAR-2000	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	4094298	Returned to Compliance	01-JAN-1998	30-JUN-1998	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	3786797	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3423096	Known	01-JUN-1996	30-JUN-1996	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2733595	Known	01-NOV-1994	30-NOV-1994	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	2733494	Returned to Compliance	01-JAN-1994	-	Yes
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	2227393	Returned to Compliance	01-JAN-1993	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	1914693	Returned to Compliance	07-DEC-1992	-	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	1726992	Returned to Compliance	01-APR-1992	30-SEP-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1346591	Known	01-SEP-1991	30-SEP-1991	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
7960011	5076807	SIA	State Violation/Reminder Notice	11-AUG-2025	State	-
7960009	5076806	SIA	State Violation/Reminder Notice	09-AUG-2011	State	-
7960006	5076805	SIA	State Violation/Reminder Notice	30-JAN-2008	State	-
7960005	5076804	SOX	State Compliance achieved	01-NOV-2004	State	-
3300	5076600	SOX	State Compliance achieved	30-JUN-2000	State	-
7959799	4094298	SOX	State Compliance achieved	16-APR-1999	State	-
7092398	3786797	SOX	State Compliance achieved	09-APR-1998	State	-
5693296	3423096	SIE	State Public Notification requested	31-AUG-1996	State	-
4925296	1726992	SOX	State Compliance achieved	31-DEC-1995	State	-
1E96	2733494	EFJ	Federal issued Formal Notice of Violation	31-OCT-1995	ODSWeb	RS
4116695	2733595	SIF	State Public Notification received	22-FEB-1995	State	-
4925395	2227393	SOX	State Compliance achieved	05-FEB-1995	State	-
1129994	1914693	SOX	State Compliance achieved	21-JUL-1994	State	-
1129592	1346591	SIF	State Public Notification received	13-NOV-1991	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-PUMP STAT 1 AT 13742 MICHIGAN AV.	25893	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 02-PUMP STATION 2 130TH AND HALSTED	25894	Yes	Consecutive Connection	Surface water	Permanent	Active
RIVERDALE	23401	No	Distribution System/Zone	-	-	Active
IDSE	34959	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46167	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46168	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27060	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29482	No	Sampling Station	-	-	Active
ELEV01 - 1.0 MG ELEVATED STORAGE	10999	No	Storage	-	-	Active
1.3 MILLION GALLON GROUND STORAGE	12646	No	Storage	-	-	Active
2.0 MILLION GALLON GROUND STORAGE	12647	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12062	No	Storage	-	-	Inactive
TP 01-PUMP STAT 1 AT 13742 MICHIGAN AV.	31929	No	Treatment Plant	-	-	Active
TP 02-PUMP STATION 2 130TH AND HALSTED	31930	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-PUMP STAT 1 AT 13742 MICHIGAN AV.	31929	Gaseous Chlorination, Post	Disinfection
TP 02-PUMP STATION 2 130TH AND HALSTED	31930	Gaseous Chlorination, Post	Disinfection

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