Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL1130750
PWS Name	LE ROY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	3498
County Served	McLean

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	7147132	Open	02-JUL-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7147133	Returned to Compliance	01-JUL-2025	30-SEP-2025	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7147134	Open	01-JUL-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7147131	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7147130	Returned to Compliance	01-JUL-2024	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7147127	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7147126	Returned to Compliance	25-MAY-2023	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7147125	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	7147124	Returned to Compliance	01-MAR-2023	-	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7147122	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7147123	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	7147121	Returned to Compliance	01-APR-2022	30-JUN-2022	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7147116	Returned to Compliance	01-JUN-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7147114	Returned to Compliance	01-MAY-2015	31-MAY-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7147113	Returned to Compliance	01-JAN-2015	31-JAN-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7147112	Returned to Compliance	01-OCT-2014	31-OCT-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7147111	Returned to Compliance	01-JAN-2014	31-JAN-2014	Yes
Other	Public Notification Violation without NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7147106	Returned to Compliance	11-AUG-2006	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7147006	Returned to Compliance	11-AUG-2006	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	7146906	Returned to Compliance	23-JAN-2006	31-MAR-2006	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	7146605	Returned to Compliance	01-JUN-2005	30-JUN-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	7147107	Returned to Compliance	01-JAN-2005	31-DEC-2007	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	7146203	Returned to Compliance	01-JAN-2002	-	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	5343601	Known	01-JUN-2001	30-JUN-2001	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	5371101	Returned to Compliance	01-APR-2001	30-JUN-2001	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	5371001	Returned to Compliance	01-JAN-2001	31-MAR-2001	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	5343701	Returned to Compliance	01-JAN-2001	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4511999	Known	01-MAR-1999	31-MAR-1999	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3825697	Known	01-MAY-1997	31-MAY-1997	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7146080	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
8000071	7147126	SFL	State Administrative/Compliance Order without penalty issued	07-NOV-2025	State	-
8000071	7147133	SFL	State Administrative/Compliance Order without penalty issued	07-NOV-2025	State	-
8000070	7147125	SIF	State Public Notification received	29-AUG-2025	State	-
8000066	7147134	SIA	State Violation/Reminder Notice	25-JUL-2025	State	-
8000063	7147132	SIE	State Public Notification requested	03-JUL-2025	State	-
8000061	7147131	SOX	State Compliance achieved	29-JAN-2025	State	-
8000058	7147130	SOX	State Compliance achieved	13-AUG-2024	State	-
8000054	7147127	SIF	State Public Notification received	02-JAN-2024	State	-
8000056	7147124	SFL	State Administrative/Compliance Order without penalty issued	01-SEP-2023	State	-
8000051	7147121	SIF	State Public Notification received	05-JUL-2023	State	-
8000049	7147123	SIF	State Public Notification received	05-JUL-2023	State	-
8000049	7147122	SIF	State Public Notification received	05-JUL-2023	State	-
8000030	7147116	SIF	State Public Notification received	31-JUL-2015	State	-
8000031	7147114	SOX	State Compliance achieved	13-JUL-2015	State	-
8000023	7147113	SFK	State Bilateral Compliance Agreement signed	17-MAR-2015	State	-
8000023	7147112	SFK	State Bilateral Compliance Agreement signed	17-MAR-2015	State	-
8000013	7147111	SIF	State Public Notification received	07-MAR-2014	State	-
8000010	7147107	SOX	State Compliance achieved	25-JAN-2008	State	Received result
8000007	7147006	SOX	State Compliance achieved	04-OCT-2006	State	Supply issued PN 10/4/06 (LATE), IEPA rcvd copy 10/4/06.
8000007	7147106	SOX	State Compliance achieved	04-OCT-2006	State	Supply issued PN 10/4/06 (LATE), IEPA rcvd copy 10/4/06.
7999907	7146605	SIF	State Public Notification received	04-OCT-2006	State	-
7999406	7146906	SFK	State Bilateral Compliance Agreement signed	27-JUL-2006	State	VN # W-2006-00134 dated 4/19/06
403	7146203	SOX	State Compliance achieved	05-AUG-2003	State	-
732501	5343601	SIE	State Public Notification requested	15-AUG-2001	State	-
813001	5371101	SOX	State Compliance achieved	01-JUL-2001	State	-
813001	5343701	SOX	State Compliance achieved	01-JUL-2001	State	-
813001	5371001	SOX	State Compliance achieved	01-JUL-2001	State	-
7997999	4511999	SIE	State Public Notification requested	15-MAY-1999	State	-
6666397	3825697	SIE	State Public Notification requested	02-AUG-1997	State	-

1 - 29 of 29

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 5 (40023) ABANDONED	21078	Yes	Well	Ground water	Other	Inactive
WELL 8 (40026)	21081	Yes	Well	Ground water	Permanent	Active
WELL 6 (40024)	21079	Yes	Well	Ground water	Permanent	Active
WELL 4 (40022)	21077	Yes	Well	Ground water	Permanent	Active
WELL 9 (02105) (ABANDONED)	41278	Yes	Well	Ground water	Other	Inactive
WELL 7 (40025) ABANDONED	21080	Yes	Well	Ground water	Other	Inactive
LE ROY	24453	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45437	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	28112	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30534	No	Sampling Station	-	-	Active
COMBO 01-WELL 4 AND 6	31698	No	Sampling Station	-	-	Active
COMBO 02-WELL 7 AND 8	31699	No	Sampling Station	-	-	Active
WATER QUALITY MONITORING	43750	No	Sampling Station	-	-	Active
DS ET - CITY CENTER	11484	No	Storage	-	-	Active
DS ET - SOUTH	44295	No	Storage	-	-	Active
TP 02-TREATMENT PLANT	16577	No	Treatment Plant	-	-	Active
TP 01-TREATMENT PLANT (INACTIVE)	34197	No	Treatment Plant	-	-	Inactive

1 - 17 of 17

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 02-TREATMENT PLANT	16577	Fluoridation	Other
TP 02-TREATMENT PLANT	16577	Filtration, Ultrafiltration	Particulate removal
TP 02-TREATMENT PLANT	16577	Gaseous Chlorination, Post	Disinfection
TP 02-TREATMENT PLANT	16577	Inhibitor, Orthophosphate	Corrosion control
TP 02-TREATMENT PLANT	16577	Innovative	Inorganics removal
TP 02-TREATMENT PLANT	16577	Gaseous Chlorination, Pre	Disinfection
TP 02-TREATMENT PLANT	16577	Fluoridation	Disinfection
TP 02-TREATMENT PLANT	16577	Aeration, Slat Tray	Iron removal
TP 02-TREATMENT PLANT	16577	Gaseous Chlorination, Pre	Iron removal
TP 02-TREATMENT PLANT	16577	Ion Exchange	Softening (hardness removal)

1 - 10 of 10

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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