Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL2030200
PWS Name	EUREKA
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	5216
County Served	Woodford

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)	7089393	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4236798	Known	01-AUG-1998	31-AUG-1998	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2960495	Known	01-FEB-1995	28-FEB-1995	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2960295	Known	01-FEB-1995	28-FEB-1995	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2960195	Known	01-JAN-1995	31-JAN-1995	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2960395	Known	01-JAN-1995	31-JAN-1995	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2857995	Known	01-DEC-1994	31-DEC-1994	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2857695	Known	01-DEC-1994	31-DEC-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2857595	Known	01-NOV-1994	30-NOV-1994	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2857895	Known	01-NOV-1994	30-NOV-1994	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2857795	Known	01-OCT-1994	31-OCT-1994	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2857495	Known	01-OCT-1994	31-OCT-1994	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2705094	Known	01-SEP-1994	30-SEP-1994	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2857394	Known	01-SEP-1994	30-SEP-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2704894	Known	01-AUG-1994	31-AUG-1994	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2704994	Known	01-AUG-1994	31-AUG-1994	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2704794	Known	01-JUL-1994	31-JUL-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2704694	Known	01-JUN-1994	30-JUN-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2704594	Known	01-MAY-1994	31-MAY-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2561994	Known	01-APR-1994	30-APR-1994	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2562094	Known	01-APR-1994	30-APR-1994	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2401994	Known	01-MAR-1994	31-MAR-1994	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2401694	Known	01-MAR-1994	31-MAR-1994	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2401894	Known	01-FEB-1994	28-FEB-1994	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2401594	Known	01-FEB-1994	28-FEB-1994	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2401794	Known	01-JAN-1994	31-JAN-1994	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2401494	Known	01-JAN-1994	31-JAN-1994	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2223094	Known	01-DEC-1993	31-DEC-1993	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2222994	Known	01-NOV-1993	30-NOV-1993	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2223394	Known	01-OCT-1993	31-OCT-1993	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2222894	Known	01-OCT-1993	31-OCT-1993	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2223293	Known	01-SEP-1993	30-SEP-1993	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2222793	Known	01-SEP-1993	30-SEP-1993	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2222693	Known	01-AUG-1993	31-AUG-1993	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	2223193	Known	01-AUG-1993	31-AUG-1993	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2222593	Known	01-JUL-1993	31-JUL-1993	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	2049593	Returned to Compliance	07-DEC-1992	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	1716893	Known	30-NOV-1992	29-NOV-1993	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2858095	Known	01-JAN-1992	31-JAN-1995	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	1208590	Returned to Compliance	06-JUN-1990	05-JUN-1991	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2859386	Known	01-NOV-1985	31-OCT-1992	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2859279	Known	01-NOV-1978	31-OCT-1985	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7089180	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
7828503	7089393	SOX	State Compliance achieved	15-AUG-2025	State	-
7828499	4236798	SIE	State Public Notification requested	15-OCT-1998	State	-
4307495	2960495	SIE	State Public Notification requested	16-MAR-1995	State	-
4307495	2960295	SIE	State Public Notification requested	16-MAR-1995	State	-
4307495	2960195	SIE	State Public Notification requested	16-MAR-1995	State	-
4307595	2960395	SIF	State Public Notification received	09-MAR-1995	State	-
4306895	2857995	SIF	State Public Notification received	12-JAN-1995	State	-
4306895	2857595	SIF	State Public Notification received	12-JAN-1995	State	-
4306895	2857695	SIF	State Public Notification received	12-JAN-1995	State	-
4088095	2857895	SIE	State Public Notification requested	23-DEC-1994	State	-
4087795	2857795	SIF	State Public Notification received	10-NOV-1994	State	-
4085895	2857495	SIF	State Public Notification received	03-NOV-1994	State	-
4085895	2857394	SIF	State Public Notification received	03-NOV-1994	State	-
4085095	2705094	SIE	State Public Notification requested	24-OCT-1994	State	-
4085095	2704894	SIE	State Public Notification requested	24-OCT-1994	State	-
4085095	2704794	SIE	State Public Notification requested	24-OCT-1994	State	-
4085095	2704694	SIE	State Public Notification requested	24-OCT-1994	State	-
4085095	2704594	SIE	State Public Notification requested	24-OCT-1994	State	-
4085095	2704994	SIE	State Public Notification requested	24-OCT-1994	State	-
1869394	2561994	SIA	State Violation/Reminder Notice	18-MAY-1994	State	-
1869594	2401694	SIA	State Violation/Reminder Notice	18-MAY-1994	State	-
1866694	2562094	SIF	State Public Notification received	12-MAY-1994	State	-
1866894	2401994	SIF	State Public Notification received	07-APR-1994	State	-
1868894	2222994	SIE	State Public Notification requested	18-MAR-1994	State	-
1869694	2223394	SIE	State Public Notification requested	18-MAR-1994	State	-
1868994	2401894	SIE	State Public Notification requested	18-MAR-1994	State	-
1868794	2223293	SIE	State Public Notification requested	18-MAR-1994	State	-
1869194	2401494	SIF	State Public Notification received	10-MAR-1994	State	-
1869294	2401594	SIF	State Public Notification received	10-MAR-1994	State	-
1869094	2223094	SIF	State Public Notification received	10-MAR-1994	State	-
1867294	2049593	SOX	State Compliance achieved	03-JAN-1994	State	-
1868294	2222894	SIF	State Public Notification received	24-NOV-1993	State	-
1867194	2222793	SIF	State Public Notification received	24-NOV-1993	State	-
1867094	2222693	SIF	State Public Notification received	24-NOV-1993	State	-
1867394	2223193	SIF	State Public Notification received	24-NOV-1993	State	-
637190	1208590	SOX	State Compliance achieved	25-JUN-1990	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE (31416) EUREKA LAKE (ABANDONED)	25699	Yes	Intake	Surface water	Other	Inactive
WELL 6 (31415)	20888	Yes	Well	Ground water	Permanent	Active
WELL 5 (31414)	20887	Yes	Well	Ground water	Permanent	Active
WELL 4 (31413) ABANDONED	20886	Yes	Well	Ground water	Other	Inactive
EUREKA	25466	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45058	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45059	No	Distribution System/Zone	-	-	Active
TAP 03-BOOSTER STA (ABANDONED)	23063	No	Pump Facility	-	-	Inactive
GENERIC FINISHED SAMPLING STATION	29125	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	31547	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	45510	No	Sampling Station	-	-	Active
ELEVATED TANK - 0.25 MG	11941	No	Storage	-	-	Active
CLEARWELL - 0.35 MG	12506	No	Storage	-	-	Active
ELEVATED TANK - 0.50 MG	45404	No	Storage	-	-	Active
TAP 03 GROUND STORAGE	13188	No	Storage	-	-	Inactive
TP 04-WELL #5 & #6 LIME SOFTENING	17929	No	Treatment Plant	-	-	Active
TP05-NAOCL FEED AT ELEVATED TANK	43794	No	Treatment Plant	-	-	Active
TP 01-WELLHOUSE 4 (ABANDONED)	17927	No	Treatment Plant	-	-	Inactive
TP 02-TREATMENT PLANT (ABANDONED)	17928	No	Treatment Plant	-	-	Inactive

1 - 19 of 19

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Fluoridation	Other
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Coagulation	Particulate removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	pH Adjustment, Pre	Softening (hardness removal)
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Aeration, Packed Tower	Iron removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Filtration, Rapid Sand	Organics removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Flocculation	Particulate removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Gaseous Chlorination, Pre	Disinfection
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Gaseous Chlorination, Post	Disinfection
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Coagulation	Particulate removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Flocculation	Particulate removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Rapid Mix	Particulate removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	Sedimentation	Particulate removal
TP 04-WELL #5 & #6 LIME SOFTENING	17929	pH Adjustment, Post	Corrosion control
TP05-NAOCL FEED AT ELEVATED TANK	43794	Hypochlorination, Post	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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