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Community Water System · PWS IL0110050

Arlington

Arlington, Illinois 61312 - drinking water served from groundwater sources to 250 people, tracked in EPA SDWIS and UCMR5.

250
People served
140
EPA violations
14
Health-based
Untested
UCMR5 result

The verdict

EPA records 140 drinking-water violations at Arlington, 10% of them health-based - above the Illinois per-system average.

140
Total EPA violations on record
10%
Health-based (MCL / treatment failure)
250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Arlington

Arlington is a local-owned community water system that delivers drinking water to 250 residents in Arlington, Illinois (Bureau County) through 87 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 140 total violations for this system , of which 14 (10%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 83 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 17 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Illinois, EPA tracks 5,117 public water systems serving 12,576,876 people, with 355,322 cumulative violations and 52,932 health-based violations on record. About 81% of systems in the state carry at least one violation, and state-wide the average per system is 69.4 violations. Statewide, 199 of 487 UCMR5-tested systems have reported PFAS detections (40.9%).

Arlington's 140 violations sit above the Illinois average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
250
Total Violations
140
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
87
County
Bureau
School/Daycare
No
MCL Violations
6
Monitoring Violations
83
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 17 2012
Chlorine MR 12 2013
Lead and Copper Rule TT 8 1996
trans-1,2-Dichloroethylene MR 8 2021
Vinyl chloride MR 8 2021
Coliform (TCR) MCL 6 1999
Consumer Confidence Rule Other 6 2014
Lead and Copper Rule MR 5 2022
Cadmium MR 4 2020
Thallium, Total MR 4 2020
Beryllium, Total MR 4 2020
Mercury MR 4 2020
Selenium MR 4 2020
Barium MR 4 2020
Nickel MR 4 2020
Antimony, Total MR 4 2020
Public Notice Other 2 2017
Gross Alpha, Excl. Radon and U MR 1 1977

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Arlington.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID IL0110050 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Illinois Drinking Water Authority

Illinois EPA, Bureau of Water is the primacy agency that licenses and inspects Arlington under EPA-delegated authority.

Open IL regulator portal

Source: Illinois EPA, Bureau of Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2022 Lead and Copper Rule MR 5 SDWIS / IL0110050 / 5000
2021 trans-1,2-Dichloroethylene MR 8 SDWIS / IL0110050 / 2979
2021 Vinyl chloride MR 8 SDWIS / IL0110050 / 2976
2020 Cadmium MR 4 SDWIS / IL0110050 / 1015
2020 Thallium, Total MR 4 SDWIS / IL0110050 / 1085
2020 Beryllium, Total MR 4 SDWIS / IL0110050 / 1075
2020 Mercury MR 4 SDWIS / IL0110050 / 1035
2020 Selenium MR 4 SDWIS / IL0110050 / 1045
2020 Barium MR 4 SDWIS / IL0110050 / 1010
2020 Nickel MR 4 SDWIS / IL0110050 / 1036
2020 Antimony, Total MR 4 SDWIS / IL0110050 / 1074
2017 Public Notice Other 2 SDWIS / IL0110050 / 7500
2014 Consumer Confidence Rule Other 6 SDWIS / IL0110050 / 7000
2013 Chlorine MR 12 SDWIS / IL0110050 / 0999
2012 Coliform (TCR) MR 17 SDWIS / IL0110050 / 3100

How Arlington Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Arlington Illinois avg Federal benchmark
Total violations 140 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 14 10.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 40.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 250 2,458 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,117 regulated public water systems in Illinois.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Arlington water safe to drink? ▼
Arlington (PWS ID: IL0110050) has 140 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does Arlington serve? ▼
Arlington serves 250 people in Arlington, Illinois. It is a Local-owned system using Groundwater water sources with 87 service connections.
What type of violations does Arlington have? ▼
Arlington has 140 total violations: 14 health-based violations (MCL exceedances or treatment failures), 83 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Arlington water? ▼
No PFAS testing data is available for Arlington under the EPA's UCMR5 monitoring program.
What water source does Arlington use? ▼
Arlington uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.