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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, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	7118382	Returned to Compliance	01-SEP-2008	30-SEP-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7118381	Returned to Compliance	01-JUL-2007	31-JUL-2007	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	4180998	Known	01-JUL-1998	31-JUL-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4181098	Known	01-JUL-1998	31-JUL-1998	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	2081693	Returned to Compliance	01-OCT-1993	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7118380	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
7317506	7118382	SIF	State Public Notification received	06-JUL-2009	State	-
7317502	7118381	SOX	State Compliance achieved	01-FEB-2008	State	Supply 6 months without a coliform violation.
7317498	4181098	SIE	State Public Notification requested	15-SEP-1998	State	-
7317498	4180998	SIE	State Public Notification requested	15-SEP-1998	State	-
4355495	2081693	SOX	State Compliance achieved	30-JUN-1995	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-RCV STRUCTURE FROM LISLE	26055	Yes	Consecutive Connection	Surface water	Permanent	Active
WELL 3 (20718) INACTIVE	20426	Yes	Well	Ground water	Other	Inactive
WELL 1 (20716) ABANDONED	20424	Yes	Well	Ground water	Other	Inactive
WELL 2 (20717) EMERGENCY	20425	Yes	Well	Ground water	Emergency	Active
CTZNS DUPAGE UTIL DVN	23586	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46293	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITIES LEAD SAMPLY	46298	No	Distribution System/Zone	-	-	Active
PF04-BOOSTER STATION RECEIVING DWC WATER	43556	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	27245	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29667	No	Sampling Station	-	-	Active
ELEV1-150,000 GALLON ELEVATED TANK	11090	No	Storage	-	-	Active
TP 02-WELL 2 (EMERGENCY)	15219	No	Treatment Plant	-	-	Active
TP 03-WELL 3 (INACTIVE)	15220	No	Treatment Plant	-	-	Inactive
TP 01-WELL 1 (ABANDONED)	32985	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 02-WELL 2 (EMERGENCY)	15219	Gaseous Chlorination, Pre	Disinfection
TP 02-WELL 2 (EMERGENCY)	15219	Gaseous Chlorination, Pre	Iron removal
TP 03-WELL 3 (INACTIVE)	15220	Hypochlorination, Post	Disinfection

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