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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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7114901	Open	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7114898	Returned to Compliance	01-JUL-2013	-	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	7114402	Known	01-SEP-2002	30-SEP-2002	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	5502102	Known	01-AUG-2002	31-AUG-2002	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	5502302	Known	01-AUG-2002	31-AUG-2002	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	3956198	Returned to Compliance	01-OCT-1997	31-DEC-1997	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3788697	Returned to Compliance	01-JUL-1997	-	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	5361397	Returned to Compliance	01-JUL-1997	30-SEP-1997	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	3788997	Returned to Compliance	01-JAN-1997	30-JUN-1997	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3222996	Known	01-OCT-1995	31-OCT-1995	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3102695	Known	01-AUG-1995	31-AUG-1995	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	2734694	Returned to Compliance	01-JAN-1994	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	2734494	Returned to Compliance	01-JAN-1994	-	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	1918193	Known	01-AUG-1993	31-AUG-1993	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1918093	Known	01-AUG-1993	31-AUG-1993	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1918293	Known	01-JUL-1993	31-JUL-1993	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1917993	Known	01-JUL-1993	31-JUL-1993	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	2075793	Returned to Compliance	01-JAN-1993	30-JUN-1993	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1453592	Known	01-MAR-1992	31-MAR-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1453492	Known	01-MAR-1992	31-MAR-1992	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	518688	Returned to Compliance	01-APR-1988	31-MAR-1992	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	235284	Returned to Compliance	16-APR-1984	15-APR-1988	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7114280	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
9840904	7114901	SIE	State Public Notification requested	29-JUL-2025	State	-
9840898	7114898	SOX	State Compliance achieved	24-JUN-2014	State	-
203	7114402	SIE	State Public Notification requested	26-NOV-2002	State	-
1921203	5502302	SIE	State Public Notification requested	19-NOV-2002	State	-
1921403	5502102	SIA	State Violation/Reminder Notice	17-OCT-2002	State	-
8355599	3788997	SOX	State Compliance achieved	31-DEC-1998	State	-
8355698	2734494	SOX	State Compliance achieved	27-AUG-1998	State	-
7094798	3788697	SOX	State Compliance achieved	09-APR-1998	State	-
8355398	5361397	SOX	State Compliance achieved	31-MAR-1998	State	-
8355398	3956198	SOX	State Compliance achieved	31-MAR-1998	State	-
6142697	2075793	SOX	State Compliance achieved	20-FEB-1997	State	-
4928396	3222996	SIE	State Public Notification requested	30-DEC-1995	State	-
4928196	3102695	SIE	State Public Notification requested	04-NOV-1995	State	-
4928495	2734694	SOX	State Compliance achieved	02-MAR-1995	State	-
9840894	1918193	SIE	State Public Notification requested	10-OCT-1993	State	-
9840794	1918093	SIE	State Public Notification requested	10-OCT-1993	State	-
9840494	1918293	SIF	State Public Notification received	06-OCT-1993	State	-
9840394	1917993	SIF	State Public Notification received	06-OCT-1993	State	-
1254792	1453592	SIF	State Public Notification received	03-JUN-1992	State	-
1254792	1453492	SIF	State Public Notification received	03-JUN-1992	State	-
1131392	235284	SOX	State Compliance achieved	30-MAR-1992	State	-
1131392	518688	SOX	State Compliance achieved	30-MAR-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
CC04-MORTON GROVE EMRGCY CNCTN GOF WSH	25962	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL NO. 3 AT 2680 W. GOLF RD. ABANDONED	20307	Yes	Well	Ground water	Other	Inactive
WELL NO. 2 AT 2616 HARRISON ST. ABANDONE	20306	Yes	Well	Ground water	Other	Inactive
WELL NO. 1 AT 2614 VICTOR AVE. ABANDONED	20305	Yes	Well	Ground water	Other	Inactive
CC06-DES PLAINES EMERG CNCTNEMRS PTR	25964	Yes	Consecutive Connection	Surface water	Emergency	Active
CC07-NILES EMERGENCY CONNECTION	25965	Yes	Consecutive Connection	Surface water	Emergency	Active
CC05-GLENVIEW EAST CONNECTION	25963	Yes	Consecutive Connection	Surface water	Permanent	Active
CC08 -GLENVIEW WEST CONNECTION	43511	Yes	Consecutive Connection	Surface water	Permanent	Active
NORTH MAINE UTIL	23448	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45575	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45576	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27107	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29529	No	Sampling Station	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11028	No	Storage	-	-	Active
TP08 - EMGR NAOHCL FEED AT 750K TANK	39568	No	Treatment Plant	-	-	Active
TP09-5 MG GROUND TANK W/ CL2 GAS	43590	No	Treatment Plant	-	-	Active
TP 01-WELL NO 1-ABANDONED	14994	No	Treatment Plant	-	-	Inactive
TP 02-WELL NO. 2 ABANDONED	14995	No	Treatment Plant	-	-	Inactive
TP 03-WELL NO ABANDONED	14996	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP08 - EMGR NAOHCL FEED AT 750K TANK	39568	Hypochlorination, Post	Disinfection
TP09-5 MG GROUND TANK W/ CL2 GAS	43590	Gaseous Chlorination, Post	Disinfection

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