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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	7022108	Returned to Compliance	01-JUL-2012	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	7022104	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)	7022105	Returned to Compliance	01-JUL-2007	30-SEP-2007	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	574688	Returned to Compliance	01-SEP-1988	31-AUG-1992	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	237484	Returned to Compliance	14-SEP-1984	13-SEP-1988	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7021980	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
1136597	7022108	SIA	State Violation/Reminder Notice	22-AUG-2012	State	-
1136596	7022104	SIF	State Public Notification received	30-JUN-2008	State	-
1136596	7022105	SIF	State Public Notification received	30-JUN-2008	State	-
1136592	237484	SOX	State Compliance achieved	30-MAR-1992	State	-
1136592	574688	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
CC 12-EMER W/BENSENVILLE/VILLA PK	33753	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL 10 (20779) ABANDONED	20480	Yes	Well	Ground water	Other	Inactive
WELL 9 (20778) ABANDONED	20479	Yes	Well	Ground water	Other	Inactive
WELL 7 (20776) ABANDONED	20478	Yes	Well	Ground water	Other	Inactive
WELL 6 (20775) ABANDONED	20477	Yes	Well	Ground water	Other	Inactive
WELL 5 (20774) ABANDONED	20476	Yes	Well	Ground water	Other	Inactive
WELL 4 (20773) ABANDONED	20475	Yes	Well	Ground water	Other	Inactive
WELL 3 (20772) ABANDONED	20474	Yes	Well	Ground water	Other	Inactive
WELL 1 (20770) ABANDONED	20473	Yes	Well	Ground water	Other	Inactive
WELL 8 (00533)- ABANDONED	18346	Yes	Well	Ground water	Other	Inactive
CC 13-EMERGENCY INTERCONNECT W/OAKBROOK	33754	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 14-EMER INTERCONNECT W/BERKELEY	33755	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 10-DISCH TO DST FROM HSP	26042	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 11-DISCH TO DST FROM HSP	26043	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 01-DISCH TO DST NORTH PS	33571	Yes	Consecutive Connection	Surface water	Permanent	Active
ELMHURST	23580	No	Distribution System/Zone	-	-	Active
SSS	34617	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	46701	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46702	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27239	No	Sampling Station	-	-	Inactive
GENERIC RAW SAMPLING STATION	29661	No	Sampling Station	-	-	Inactive
GR01 -NORTH PS RESERVOIR	12725	No	Storage	-	-	Active
GR02- WEST PS RESERVOIR	12726	No	Storage	-	-	Active
GR03 - SOUTH PS RESERVOIR	44824	No	Storage	-	-	Active
ELEV01- NORTH ELEVATED TANK	44825	No	Storage	-	-	Active
ELEV02- WEST ELEVATED TANK	44826	No	Storage	-	-	Active
ELVE03- SOUTH ELEVATED TANK	44827	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11085	No	Storage	-	-	Inactive
DISTRIBUTION GROUND STORAGE	12128	No	Storage	-	-	Inactive
TP 01-DSTR SYS 1 PUMP STA	22809	No	Treatment Plant	-	-	Active
TP 10-CENTRAL PUMP STATION	33577	No	Treatment Plant	-	-	Active
TP 11-SOUTH PUMP STATION	33578	No	Treatment Plant	-	-	Active
TP 02-WELLS 1 3 (ABANDONED)	15185	No	Treatment Plant	-	-	Inactive
TP 03-WELL 10 (ABANDONED)	15186	No	Treatment Plant	-	-	Inactive
TP 04-WELL 4 INACTIVE	15187	No	Treatment Plant	-	-	Inactive
TP 05-WELL 5 (ABANDONED)	15188	No	Treatment Plant	-	-	Inactive
TP 06-WELL 6 INACTIVE	15189	No	Treatment Plant	-	-	Inactive
TP 07-WELL 7 (ABANDONED)	15190	No	Treatment Plant	-	-	Inactive
TP 08-WELL 9 (ABANDONED)	15191	No	Treatment Plant	-	-	Inactive
TP 09-WELL 8 INACTIVE	15192	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 04-WELL 4 INACTIVE	15187	Gaseous Chlorination, Pre	Disinfection
TP 06-WELL 6 INACTIVE	15189	Gaseous Chlorination, Pre	Disinfection
TP 09-WELL 8 INACTIVE	15192	Gaseous Chlorination, Pre	Disinfection
TP 01-DSTR SYS 1 PUMP STA	22809	Gaseous Chlorination, Pre	Disinfection
TP 10-CENTRAL PUMP STATION	33577	Gaseous Chlorination, Pre	Disinfection
TP 11-SOUTH PUMP STATION	33578	Gaseous Chlorination, Pre	Disinfection

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