Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0971770
PWS Name	VOLO
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	6629
County Served	Lake

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	Total Haloacetic Acids (HAA5)	4116	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	4115	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	4107	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4108	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4034	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4033	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4035	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	4036	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4046	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4047	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4045	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	4048	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	4039	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	4037	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	4038	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	4040	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	4044	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	4043	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	4042	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	4041	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	3973	Returned to Compliance	29-SEP-2021	-	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Barium	3910	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2505	Returned to Compliance	08-APR-2005	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2405	Returned to Compliance	08-APR-2005	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2705	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2205	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1605	Returned to Compliance	09-OCT-2004	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1505	Returned to Compliance	09-OCT-2004	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1705	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1205	Returned to Compliance	26-JUL-2004	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1105	Returned to Compliance	26-JUL-2004	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1305	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	904	Returned to Compliance	01-APR-2004	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	604	Returned to Compliance	01-JAN-2004	31-MAR-2004	Yes

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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
5881	4115	SIF	State Public Notification received	23-JUN-2025	State	-
5881	4116	SIF	State Public Notification received	23-JUN-2025	State	-
5876	4035	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4047	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4046	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4034	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4033	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4045	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4044	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4043	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4042	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4041	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4040	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4039	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4038	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4037	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4036	SOX	State Compliance achieved	08-OCT-2024	State	-
5876	4048	SOX	State Compliance achieved	08-OCT-2024	State	-
5824	4107	SIF	State Public Notification received	24-JUN-2024	State	-
5824	4108	SIF	State Public Notification received	24-JUN-2024	State	-
5814	3973	SOX	State Compliance achieved	15-OCT-2021	State	-
5812	3910	SOX	State Compliance achieved	05-MAR-2019	State	TP01 achieved compliance with the barium MCL at the end of 2018Q2, but TP02 went out of compliance 2018Q1. After 4 consecutive quarters, TP02 has also RTC.
5105	2705	SIF	State Public Notification received	03-AUG-2005	State	-
4505	2505	SOX	State Compliance achieved	06-JUN-2005	State	Issued 06/01/2005 (late)
4505	2405	SOX	State Compliance achieved	06-JUN-2005	State	Issued 06/01/2005 (late)
4605	1705	SIF	State Public Notification received	06-JUN-2005	State	-
5005	2205	SOX	State Compliance achieved	12-MAY-2005	State	-
5005	1305	SOX	State Compliance achieved	12-MAY-2005	State	-
5005	904	SOX	State Compliance achieved	12-MAY-2005	State	-
5005	604	SOX	State Compliance achieved	12-MAY-2005	State	-
3205	1505	SOX	State Compliance achieved	20-JAN-2005	State	Supply issued PN 1/17/05 (LATE), IEPA rcvd. copy 1/20/05.
3205	1605	SOX	State Compliance achieved	20-JAN-2005	State	Supply issued PN 1/17/05 (LATE), IEPA rcvd. copy 1/20/05.
2205	1205	SOX	State Compliance achieved	12-OCT-2004	State	PN issued 10/6/04 (LATE) in response to PN violation dated 10/5/04. IEPA rcvd. copy of PN on 10/12/04.
2205	1105	SOX	State Compliance achieved	12-OCT-2004	State	PN issued 10/6/04 (LATE) in response to PN violation dated 10/5/04. IEPA rcvd. copy of PN on 10/12/04.

1 - 34 of 34

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 02-EMER CONNECT WITH FOX LAKE	33774	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL 5 (01725) EMERGENCY	34524	Yes	Well	Ground water	Emergency	Active
WELL 4 (01724) EMERGENCY	34523	Yes	Well	Ground water	Emergency	Active
WELL 3 (01664) EMERGENCY	34344	Yes	Well	Ground water	Emergency	Active
WELL 2 (01342) EMERGENCY	32290	Yes	Well	Ground water	Emergency	Active
WELL 1 (01341) EMERGENCY	32289	Yes	Well	Ground water	Emergency	Active
CC03-CONNECTION TO CLCJAWA	41711	Yes	Consecutive Connection	Surface water	Permanent	Active
VOLO	24186	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	46357	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46358	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27845	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30267	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	41671	No	Sampling Station	-	-	Inactive
WATER QUALITY SAMPLING	41672	No	Sampling Station	-	-	Inactive
ELEV1-0.50 MG ELEVATED TANK	40592	No	Storage	-	-	Active
ELEV2-1.0 MG ELEVATED TANK	44312	No	Storage	-	-	Active
TP 01-ION-EX WLS #1, #2, #3 (EMERGENCY)	31736	No	Treatment Plant	-	-	Active
TP02 -CLCJAWA WATER W/ BACKUP WLS #4&#5	39601	No	Treatment Plant	-	-	Active

1 - 18 of 18

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-ION-EX WLS #1, #2, #3 (EMERGENCY)	31736	Ion Exchange	Inorganics removal
TP 01-ION-EX WLS #1, #2, #3 (EMERGENCY)	31736	Gaseous Chlorination, Pre	Disinfection
TP 01-ION-EX WLS #1, #2, #3 (EMERGENCY)	31736	Ion Exchange	Radionuclides removal
TP 01-ION-EX WLS #1, #2, #3 (EMERGENCY)	31736	Fluoridation	Other
TP02 -CLCJAWA WATER W/ BACKUP WLS #4&#5	39601	Ion Exchange	Inorganics removal
TP02 -CLCJAWA WATER W/ BACKUP WLS #4&#5	39601	Ion Exchange	Radionuclides removal
TP02 -CLCJAWA WATER W/ BACKUP WLS #4&#5	39601	Hypochlorination, Pre	Disinfection
TP02 -CLCJAWA WATER W/ BACKUP WLS #4&#5	39601	Fluoridation	Other

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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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