Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0314480
PWS Name	HANOVER PARK
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	37470
County Served	Cook

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.

Violations

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	7029387	Known	01-OCT-2025	31-DEC-2025	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7029386	Open	01-JUL-2025	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	7029307	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	7029309	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	7029310	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	7029311	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	7029312	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	7029308	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7029306	Returned to Compliance	01-JUL-2009	31-JUL-2009	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	7028505	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	7029005	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	7029105	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	7027705	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	7027805	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	7027905	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	7028105	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	7028205	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	7028905	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	7028005	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	7029305	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	7028605	Returned to Compliance	01-JAN-2002	31-DEC-2004	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	5058699	Returned to Compliance	01-JUL-1999	30-SEP-1999	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5059199	Returned to Compliance	01-JUL-1999	30-SEP-1999	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5059099	Returned to Compliance	01-APR-1999	30-JUN-1999	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	5058599	Returned to Compliance	01-APR-1999	30-JUN-1999	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5058999	Returned to Compliance	01-JAN-1999	31-MAR-1999	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	5058499	Returned to Compliance	01-JAN-1999	31-MAR-1999	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	5058399	Returned to Compliance	01-OCT-1998	31-DEC-1998	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5058899	Returned to Compliance	01-OCT-1998	31-DEC-1998	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4178998	Returned to Compliance	01-JUL-1998	31-JUL-1998	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5058798	Returned to Compliance	01-JUL-1998	30-SEP-1998	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	5058298	Returned to Compliance	01-JUL-1998	30-SEP-1998	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	234684	Returned to Compliance	14-SEP-1984	13-SEP-1988	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7015780	Returned to Compliance	30-JUN-1977	29-JUN-1981	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9040432	7029386	SIA	State Violation/Reminder Notice	01-AUG-2025	State	-
9040427	7029307	SOX	State Compliance achieved	31-JUL-2017	State	waited for 2 SOC sets before returning to compliance
9040427	7029308	SOX	State Compliance achieved	31-JUL-2017	State	waited for 2 SOC sets before returning to compliance
9040427	7029309	SOX	State Compliance achieved	31-JUL-2017	State	waited for 2 SOC sets before returning to compliance
9040427	7029310	SOX	State Compliance achieved	31-JUL-2017	State	waited for 2 SOC sets before returning to compliance
9040427	7029311	SOX	State Compliance achieved	31-JUL-2017	State	waited for 2 SOC sets before returning to compliance
9040427	7029312	SOX	State Compliance achieved	31-JUL-2017	State	waited for 2 SOC sets before returning to compliance
9040405	7029306	SOX	State Compliance achieved	01-FEB-2010	State	Supply went 6 months without a coliform violation.
9040005	7029005	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7029105	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7029305	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7028905	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7028605	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7028505	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7028205	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7028105	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7028005	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7027905	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7027805	SIF	State Public Notification received	10-JUN-2005	State	-
9040005	7027705	SIF	State Public Notification received	10-JUN-2005	State	-
9039301	5058798	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5058899	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5058999	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5059099	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5059199	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	7015780	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5058699	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5058499	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5058399	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5058298	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	4178998	SOX	State Compliance achieved	14-DEC-1999	State	-
9039301	5058599	SOX	State Compliance achieved	14-DEC-1999	State	-
1001584	234684	SOX	State Compliance achieved	07-JUL-1987	State	-

1 - 33 of 33

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 13-INTERCONNECT W BARTLETT	25936	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL 1 (00941) ABANDONED	18746	Yes	Well	Ground water	Other	Inactive
WELL 4 (00944) EMERGENCY	18749	Yes	Well	Ground water	Emergency	Active
WELL 3 (00943) EMERGENCY	18748	Yes	Well	Ground water	Emergency	Active
WELL 2 (00942) EMERGENCY	18747	Yes	Well	Ground water	Emergency	Active
WELL 6 (00504) EMERGENCY	18317	Yes	Well	Ground water	Emergency	Active
ELEV03-750K TOWER	44943	Yes	Spring	Surface water	Other	Inactive
CC 14-INTERCONNECT W STREAMWOOD	25937	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 15-INTERCONNECT W CAROLSTRM	25938	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 16-INTERCONNECT W ROSELLE	25939	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 10-WELL 2 MIXING W/LAKE WATER INTAKE	33872	Yes	Consecutive Connection	Ground water	Other	Inactive
CC 05-BARRINGTON ENTRY	25932	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 06-LIBERTY ENTRY	25933	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 07-HILLCREST ENTRY	25934	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 08-MORTON ROAD ENTRY	25935	Yes	Consecutive Connection	Surface water	Permanent	Active
CC 03-INTERCONNECT WITH NWSMJAWA	33194	Yes	Consecutive Connection	Surface water	Permanent	Inactive
HANOVER PK	23426	No	Distribution System/Zone	-	-	Active
IDSE	34625	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45310	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45312	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27085	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29507	No	Sampling Station	-	-	Active
GR01-1.0 MG GROUND TANK AT TP01	12672	No	Storage	-	-	Active
GR02-1.0 MG GROUND TANK AT TP03	12673	No	Storage	-	-	Active
GR03-TWO 1.0 MG GROUND TANKS AT TP02	12674	No	Storage	-	-	Active
ELEV01-1.0 MG TOWER	44941	No	Storage	-	-	Active
ELEV02-1.0 MG TOWER	44942	No	Storage	-	-	Active
ELEV04-750K GALLON TOWER	44952	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11019	No	Storage	-	-	Inactive
DISTRIBUTION GROUND STORAGE	12086	No	Storage	-	-	Inactive
TP 10-ELEV TANK-LAKE WTR & WL 2 EMERGENC	14847	No	Treatment Plant	-	-	Active
TP 01-LONGMEADOW PS PEAK	22781	No	Treatment Plant	-	-	Active
TP 02-EMERG WL 4, BOOSTER AND LK WTR MIX	22782	No	Treatment Plant	-	-	Active
TP 03-SCHICK RD PS RES HSP CL DISTR SYS	22783	No	Treatment Plant	-	-	Active
TP 04-DISCH RESER (INACTIVE)	14845	No	Treatment Plant	-	-	Inactive
TP 09-WELL 1 (ABANDONED)	14846	No	Treatment Plant	-	-	Inactive
TP 11-WELL 3 (INACTIVE)	14848	No	Treatment Plant	-	-	Inactive
TP 12-DISCH TO RESERVOIR (INACTIVE)	14849	No	Treatment Plant	-	-	Inactive

1 - 38 of 38

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 10-ELEV TANK-LAKE WTR & WL 2 EMERGENC	14847	Gaseous Chlorination, Pre	Disinfection
TP 01-LONGMEADOW PS PEAK	22781	Gaseous Chlorination, Pre	Disinfection
TP 01-LONGMEADOW PS PEAK	22781	Gaseous Chlorination, Post	Disinfection
TP 02-EMERG WL 4, BOOSTER AND LK WTR MIX	22782	Gaseous Chlorination, Pre	Disinfection
TP 02-EMERG WL 4, BOOSTER AND LK WTR MIX	22782	Gaseous Chlorination, Post	Disinfection
TP 03-SCHICK RD PS RES HSP CL DISTR SYS	22783	Gaseous Chlorination, Pre	Disinfection

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For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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