Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL2015320
PWS Name	OTTER CREEK LAKE UTILITIES DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2342
County Served	Winnebago

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
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7100312	Open	02-JUL-2025	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7100309	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	7100307	Returned to Compliance	01-JAN-2007	31-DEC-2007	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1883893	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1882793	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	2221793	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1884293	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1884193	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1884093	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1883993	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1882893	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1883793	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1883693	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1883593	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1883493	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1883393	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1883293	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1883193	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1883093	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1882993	Returned to Compliance	01-APR-1993	30-JUN-1993	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1716393	Known	01-NOV-1992	30-NOV-1992	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1716293	Known	01-OCT-1992	31-OCT-1992	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1714692	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	2221692	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1716192	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1716092	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1715992	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1715892	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1715792	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1715692	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1715592	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1715492	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1715392	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1715292	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1715192	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1715092	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1714992	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1714892	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1714792	Returned to Compliance	01-JUL-1992	30-SEP-1992	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7100180	Known	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
2240818	7100312	SIE	State Public Notification requested	03-JUL-2025	State	-
2240814	7100309	SOX	State Compliance achieved	10-MAR-2022	State	-
2240809	7100307	SOX	State Compliance achieved	25-JAN-2008	State	Received results
2239194	1884293	SOX	State Compliance achieved	16-NOV-1993	State	-
2239794	2221793	SOX	State Compliance achieved	16-NOV-1993	State	-
2239394	1884093	SOX	State Compliance achieved	16-NOV-1993	State	-
2239494	1883993	SOX	State Compliance achieved	16-NOV-1993	State	-
2239594	1883893	SOX	State Compliance achieved	16-NOV-1993	State	-
2239694	1883793	SOX	State Compliance achieved	16-NOV-1993	State	-
2239094	1883693	SOX	State Compliance achieved	16-NOV-1993	State	-
2240494	1883593	SOX	State Compliance achieved	16-NOV-1993	State	-
2240594	1883493	SOX	State Compliance achieved	16-NOV-1993	State	-
2239894	1883393	SOX	State Compliance achieved	16-NOV-1993	State	-
2238994	1883293	SOX	State Compliance achieved	16-NOV-1993	State	-
2239994	1883193	SOX	State Compliance achieved	16-NOV-1993	State	-
2240094	1883093	SOX	State Compliance achieved	16-NOV-1993	State	-
2240194	1882993	SOX	State Compliance achieved	16-NOV-1993	State	-
2240294	1882893	SOX	State Compliance achieved	16-NOV-1993	State	-
2240394	1882793	SOX	State Compliance achieved	16-NOV-1993	State	-
2239294	1884193	SOX	State Compliance achieved	16-NOV-1993	State	-
1863993	2221692	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1716192	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1716092	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715992	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715892	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715792	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715692	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715592	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715492	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715392	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715292	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715192	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1715092	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1714992	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1714892	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1714692	SOX	State Compliance achieved	19-FEB-1993	State	-
1863993	1714792	SOX	State Compliance achieved	19-FEB-1993	State	-
1865793	1716393	SIF	State Public Notification received	21-JAN-1993	State	-
1702893	1716293	SIE	State Public Notification requested	19-DEC-1992	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 1 (11696) ABANDONED	19562	Yes	Well	Ground water	Other	Inactive
WELL 4 (02124)	41665	Yes	Well	Ground water	Permanent	Active
WELL 2 (11697)	19563	Yes	Well	Ground water	Permanent	Active
WELL 3 (01094)	18890	Yes	Well	Ground water	Permanent	Active
OTTER CREEK LAKE UTL DSTRCT	25416	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	29075	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	31497	No	Sampling Station	-	-	Active
ELEVATED TANK - 300,000-GAL	44829	No	Storage	-	-	Active
DISTRIBUTION STANDPIPE STORAGE	14462	No	Storage	-	-	Inactive
DISTRIBUTION ELEVATED STORAGE - 300K	35216	No	Storage	-	-	Inactive
TP 02-WELL 2	17856	No	Treatment Plant	-	-	Active
TP 03-WELL 3	17857	No	Treatment Plant	-	-	Active
TP04-WELL #4 TREATMENT	43596	No	Treatment Plant	-	-	Active
TP 01-WELL 1	17855	No	Treatment Plant	-	-	Inactive

1 - 14 of 14

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-WELL 1	17855	Fluoridation	Other
TP 01-WELL 1	17855	Hypochlorination, Post	Disinfection
TP 02-WELL 2	17856	Fluoridation	Other
TP 02-WELL 2	17856	Hypochlorination, Post	Disinfection
TP 03-WELL 3	17857	Fluoridation	Other
TP 03-WELL 3	17857	Hypochlorination, Post	Disinfection
TP04-WELL #4 TREATMENT	43596	Hypochlorination, Post	Disinfection
TP04-WELL #4 TREATMENT	43596	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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