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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 and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7023611	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7023612	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	7023605	Returned to Compliance	01-DEC-2004	31-DEC-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7023403	Returned to Compliance	01-FEB-2003	28-FEB-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	5076999	Known	01-JUL-1999	31-JUL-1999	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1127190	Returned to Compliance	01-DEC-1989	30-NOV-1993	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	238286	Returned to Compliance	09-DEC-1985	08-DEC-1989	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7022980	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
8118515	7023612	SIF	State Public Notification received	25-JUN-2024	State	-
8118515	7023611	SIF	State Public Notification received	25-JUN-2024	State	-
8118205	7023605	SIF	State Public Notification received	13-JUL-2005	State	-
8118403	7023403	SOX	State Compliance achieved	01-SEP-2003	State	Supply without a coliform violation for 6 months.
8117499	5076999	SIE	State Public Notification requested	15-SEP-1999	State	-
1734592	1127190	SOX	State Compliance achieved	04-JUN-1992	State	-
1734592	238286	SOX	State Compliance achieved	04-JUN-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 08-EMERG INTERCONNECT W/ ELMHURST	31714	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL 7 (20699) SEALED	20407	Yes	Well	Ground water	Other	Inactive
WELL 6 (20698) SEALED	20406	Yes	Well	Ground water	Other	Inactive
WELL 4 (20697) ABANDONED	20405	Yes	Well	Ground water	Other	Inactive
WELL 3 (20696) SEALED	20404	Yes	Well	Ground water	Other	Inactive
WELL 2 (20695) (ABANDONED)	20403	Yes	Well	Ground water	Other	Inactive
CC 10-EMERG INTERCON W/ ELKGROVE VILLA	31718	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 07-MASTER METER 1	26081	Yes	Consecutive Connection	Surface water	Emergency	Inactive
CC 09-EMERG INTERCONNECT W/ WOOD DALE	31717	Yes	Consecutive Connection	Surface water	Other	Inactive
CC 06-MASTER METER 2	26080	Yes	Consecutive Connection	Surface water	Permanent	Active
BENSENVILLE	23603	No	Distribution System/Zone	-	-	Active
IDSE	34593	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45019	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45020	No	Distribution System/Zone	-	-	Active
PF07 - CHURCH STREET PUMPING STATION	35533	No	Pump Facility	-	-	Inactive
PF11 - FOSTER AVE BOOSTER STATION	35534	No	Pump Facility	-	-	Inactive
GENERIC FINISHED SAMPLING STATION	27262	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29684	No	Sampling Station	-	-	Active
GR01-1.8 MG GROUND STORAGE TANK AT TP06	44591	No	Storage	-	-	Active
GR02-0.750 MG GROUND TANK AT TP11	44592	No	Storage	-	-	Active
500K EVEVATED TANK ON BELMONT STREET	44593	No	Storage	-	-	Active
500K GALLON EVEVATED TANK ON CHURCH ST	44594	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11103	No	Storage	-	-	Inactive
DISTRIBUTION GROUND STORAGE	12141	No	Storage	-	-	Inactive
TP06-CHURCH ST. PS W/ NAOCL	43669	No	Treatment Plant	-	-	Active
TP11-FOSTER AVE. BS W/ NAOCL	43670	No	Treatment Plant	-	-	Active
TP 01-WELL 2 ( ABANDONED)	15287	No	Treatment Plant	-	-	Inactive
TP 02-WELL 3 INACTIVE	15288	No	Treatment Plant	-	-	Inactive
TP 03-WELL 4 (ABANDONED)	15289	No	Treatment Plant	-	-	Inactive
TP 04-WELL 6 INACTIVE	15290	No	Treatment Plant	-	-	Inactive
TP 05-WELL 7 (EMERGENCY)	15291	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 3 INACTIVE	15288	Gaseous Chlorination, Pre	Disinfection
TP 04-WELL 6 INACTIVE	15290	Gaseous Chlorination, Pre	Disinfection
TP 05-WELL 7 (EMERGENCY)	15291	Gaseous Chlorination, Pre	Disinfection
TP06-CHURCH ST. PS W/ NAOCL	43669	Hypochlorination, Post	Disinfection
TP11-FOSTER AVE. BS W/ NAOCL	43670	Hypochlorination, Post	Disinfection

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