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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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7022686	Returned to Compliance	30-DEC-2020	-	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	5387501	Known	01-JUL-2001	31-JUL-2001	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4552099	Known	01-JUN-1999	30-JUN-1999	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4490399	Known	01-MAY-1999	31-MAY-1999	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4490299	Known	01-APR-1999	30-APR-1999	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4490199	Known	01-MAR-1999	31-MAR-1999	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3790797	Known	01-APR-1997	30-APR-1997	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3701197	Known	01-MAR-1997	31-MAR-1997	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3226096	Known	01-DEC-1995	31-DEC-1995	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5060394	Known	01-APR-1994	30-JUN-1994	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	5060294	Known	01-APR-1994	30-JUN-1994	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2253294	Known	01-MAR-1994	31-MAR-1994	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2253394	Known	01-MAR-1994	31-MAR-1994	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2253494	Known	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2253594	Known	01-JAN-1994	31-MAR-1994	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7022680	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
8116901	7022686	SOX	State Compliance achieved	18-JAN-2021	State	-
647001	5387501	SIE	State Public Notification requested	15-SEP-2001	State	-
8116899	4552099	SIE	State Public Notification requested	15-AUG-1999	State	-
8116699	4490399	SIE	State Public Notification requested	15-JUL-1999	State	-
7964399	4490299	SIE	State Public Notification requested	15-JUN-1999	State	-
7964199	4490199	SIE	State Public Notification requested	15-MAY-1999	State	-
6500797	3790797	SIF	State Public Notification received	12-JUL-1997	State	-
6500797	3701197	SIF	State Public Notification received	12-JUL-1997	State	-
5211696	3226096	SIF	State Public Notification received	06-MAR-1996	State	-
741094	2253394	SIA	State Violation/Reminder Notice	12-MAY-1994	State	-
741194	2253294	SIE	State Public Notification requested	12-MAY-1994	State	-
740594	5060394	SIE	State Public Notification requested	01-APR-1994	State	-
740894	5060294	SIA	State Violation/Reminder Notice	01-APR-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 02-DISCH FROM DUPAGE WATER COMMISSION	26074	Yes	Consecutive Connection	Surface water	Permanent	Active
WELL 4 (20485) ABANDONED	20196	Yes	Well	Ground water	Other	Inactive
WELL 2 (20484) EMER	20195	Yes	Well	Ground water	Emergency	Active
WELL 5 (00599) EMER	18410	Yes	Well	Ground water	Emergency	Active
FROM DU PAGE WATER COMMISSION	40462	Yes	Consecutive Connection	Surface water	Permanent	Active
WINFIELD	23600	No	Distribution System/Zone	-	-	Active
IDSE	34696	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46213	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46214	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27259	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29681	No	Sampling Station	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11100	No	Storage	-	-	Active
TAP 01 GROUND STORAGE	12736	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12139	No	Storage	-	-	Inactive
TP 01-EMERGENCY WELL2 & WELL5	22819	No	Treatment Plant	-	-	Active
TP 02-DISCH FROM HSPS IN EL TANK	32048	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-EMERGENCY WELL2 & WELL5	22819	Hypochlorination, Pre	Disinfection
TP 02-DISCH FROM HSPS IN EL TANK	32048	Hypochlorination, Pre	Disinfection

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