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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.

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Violations

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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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	5938522	Open	28-AUG-2025	-	No
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	5938523	Open	02-JUL-2025	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	5938517	Returned to Compliance	01-AUG-2024	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	5938516	Open	26-DEC-2023	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	5938510	Open	19-JAN-2021	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	5938508	Open	14-JAN-2020	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	5938506	Open	09-NOV-2018	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	5938498	Returned to Compliance	01-AUG-2011	31-AUG-2011	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	5938497	Returned to Compliance	01-MAY-1997	31-MAY-1997	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
530	5938523	SIE	State Public Notification requested	21-OCT-2025	State	-
528	5938522	SIA	State Violation/Reminder Notice	25-SEP-2025	State	-
531	5938517	SOX	State Compliance achieved	24-SEP-2024	State	-
521	5938516	SIA	State Violation/Reminder Notice	26-DEC-2023	State	NOV needed. Wrong LCR data, missing DBP data. 12/26/23 IL
512	5938510	SIA	State Violation/Reminder Notice	19-JAN-2021	State	-
510	5938508	SIA	State Violation/Reminder Notice	14-JAN-2020	State	-
509	5938506	SIA	State Violation/Reminder Notice	09-NOV-2018	State	2017 CCR
501	5938498	SOX	State Compliance achieved	31-JAN-2013	State	THIS WAS SOXed BY AN AUTOMATED PROCESS CREATED BY TAB.
497	5938497	SOX	State Compliance achieved	19-APR-2007	State	THIS WAS SOXED BY AN AUTOMATED PROCESS CREATED BY TAB.

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MCARTHUR, VILLAGE OF WELL 0001	20014	Yes	Well	Ground water	Permanent	Active
MCARTHUR, VILLAGE OF WELL 0009	20020	Yes	Well	Ground water	Permanent	Active
MCARTHUR, VILLAGE OF WELL 0008	20019	Yes	Well	Ground water	Permanent	Active
MCARTHUR, VILLAGE OF WELL 0006	20018	Yes	Well	Ground water	Permanent	Active
MCARTHUR, VILLAGE OF WELL 0004	20017	Yes	Well	Ground water	Permanent	Active
MCARTHUR, VILLAGE OF WELL 0003	20016	Yes	Well	Ground water	Permanent	Active
MCARTHUR, VILLAGE OF WELL 0002	20015	Yes	Well	Ground water	Permanent	Active
MCARTHUR, VILLAGE OF DISTRIBUTION	30753	No	Distribution System/Zone	-	-	Active
INDUSTRIAL PARK PUMPS	22908	No	Pump Facility	-	-	Active
HIGH SCHOOL PUMPS	40091	No	Pump Facility	-	-	Active
Mcarthur, Village Of P01	124224	No	Sampling Station	-	-	Inactive
Mcarthur, Village Of P03	124226	No	Sampling Station	-	-	Inactive
Mcarthur, Village Of P02	124228	No	Sampling Station	-	-	Inactive
Mcarthur, Village Of P04	124230	No	Sampling Station	-	-	Inactive
INDUSTRIAL PARK TANK	1251	No	Storage	-	-	Active
HIGH ST RESERVOIR	1252	No	Storage	-	-	Active
HIGH SCHOOL TANK	40088	No	Storage	-	-	Active
MCARTHUR VILLAGE STU 1	8848	No	Treatment Plant	-	-	Active
MCARTHUR VILLAGE STU 2	8849	No	Treatment Plant	-	-	Active
MCARTHUR VILLAGE STU 3	8850	No	Treatment Plant	-	-	Active
MCARTHUR VILLAGE STU 4	8851	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
MCARTHUR VILLAGE STU 1	8848	Hypochlorination, Post	Disinfection
MCARTHUR VILLAGE STU 2	8849	Hypochlorination, Post	Disinfection
MCARTHUR VILLAGE STU 3	8850	Hypochlorination, Post	Disinfection
MCARTHUR VILLAGE STU 4	8851	Hypochlorination, Post	Disinfection

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