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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	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8541331	Open	07-JAN-2026	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	8541319	Returned to Compliance	01-MAR-2021	31-MAR-2021	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	8541309	Returned to Compliance	31-DEC-2009	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8541206	Returned to Compliance	01-JUL-2006	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8218005	Returned to Compliance	01-JUL-2005	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	2027894	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	2027394	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	2027594	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	2027294	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	2027694	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	2027794	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	2028494	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	2028394	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	2028294	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	2028194	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2027994	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	2027494	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Asbestos	2027194	Returned to Compliance	01-JAN-1994	30-JUN-1994	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	2028094	Returned to Compliance	01-JAN-1994	30-JUN-1994	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
121532	8541331	SIA	State Violation/Reminder Notice	07-JAN-2026	State	NOV needed. Missing SigDif Storage corrosion Follow-up 9/19/25 IL 12/17/25 IL
121520	8541319	SIF	State Public Notification received	05-MAY-2022	State	-
121508	8541309	SOX	State Compliance achieved	01-MAR-2010	State	-
121507	8541206	SOX	State Compliance achieved	11-JUN-2007	State	-
121507	8218005	SOX	State Compliance achieved	11-JUN-2007	State	-
3095	2027994	SIF	State Public Notification received	01-NOV-1994	State	-
1795	2027894	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2028094	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2028194	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2028294	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2028394	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2028494	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2027794	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2027694	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2027594	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2027494	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2027394	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2027294	SIF	State Public Notification received	31-OCT-1994	State	-
1795	2027194	SIF	State Public Notification received	31-OCT-1994	State	-

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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
WELL 1	13088	Yes	Well	Ground water	Permanent	Active
WELL 3	13090	Yes	Well	Ground water	Permanent	Active
WELL 2	13089	Yes	Well	Ground water	Permanent	Active
ARLINGTON VILLAGE DISTRIBUTION	25495	No	Distribution System/Zone	-	-	Active
HS PUMPING	34657	No	Pressure Control	-	-	Inactive
HIGH SERVICE PUMP	42277	No	Pump Facility	-	-	Active
LOW SERVICE PUMP	45648	No	Pump Facility	-	-	Active
Arlington, Village Of P01	90982	No	Sampling Station	-	-	Inactive
ELEVATED TANK RAILROAD ST	357	No	Storage	-	-	Active
CLEARWELL	48992	No	Storage	-	-	Active
REACTION TANK	48993	No	Storage	-	-	Active
ELEVATED TANK - TAFT LN	55187	No	Storage	-	-	Active
ARLINGTON VILLAGE	3777	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
ARLINGTON VILLAGE	3777	Hypochlorination, Pre	Iron removal
ARLINGTON VILLAGE	3777	Innovative	Iron removal
ARLINGTON VILLAGE	3777	Hypochlorination, Post	Disinfection
ARLINGTON VILLAGE	3777	Aeration, Diffused	Iron removal
ARLINGTON VILLAGE	3777	Filtration, Pressure Sand	Iron removal
ARLINGTON VILLAGE	3777	Ion Exchange	Softening (hardness removal)

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