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Community Water System · PWS IL0312490

Phoenix

Phoenix, Illinois 60426 - drinking water served from surface water sources to 1,994 people, tracked in EPA SDWIS and UCMR5.

1,994
People served
244
EPA violations
20
Health-based
Untested
UCMR5 result

The verdict

EPA records 244 drinking-water violations at Phoenix, 8% of them health-based - above the Illinois per-system average.

244
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
1,994
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Phoenix

Phoenix is a local-owned community water system that delivers drinking water to 1,994 residents in Phoenix, Illinois (Cook County) through 637 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 244 total violations for this system , of which 20 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 140 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 34 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%).

Phoenix's 244 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
1,994
Total Violations
244
Health-Based Violations
20
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
637
County
Cook
School/Daycare
No
MCL Violations
12
Monitoring Violations
140
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 34 2010
Lead and Copper Rule MR 32 2022
Consumer Confidence Rule Other 25 2019
TTHM MR 25 2025
Total Haloacetic Acids (HAA5) MR 25 2025
Chlorine MR 24 2014
Public Notice Other 16 2022
Coliform (TCR) MCL 12 2008
Lead and Copper Rule TT 8 2004
LEAD AND COPPER RULE REVISIONS RPT 2 2025

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 Phoenix.

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 IL0312490 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 Phoenix 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
2025 TTHM MR 25 SDWIS / IL0312490 / 2950
2025 Total Haloacetic Acids (HAA5) MR 25 SDWIS / IL0312490 / 2456
2025 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / IL0312490 / 5200
2022 Lead and Copper Rule MR 32 SDWIS / IL0312490 / 5000
2022 Public Notice Other 16 SDWIS / IL0312490 / 7500
2019 Consumer Confidence Rule Other 25 SDWIS / IL0312490 / 7000
2014 Chlorine MR 24 SDWIS / IL0312490 / 0999
2010 Coliform (TCR) MR 34 SDWIS / IL0312490 / 3100
2008 Coliform (TCR) MCL 12 SDWIS / IL0312490 / 3100
2004 Lead and Copper Rule TT 8 SDWIS / IL0312490 / 5000

How Phoenix Compares

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

Metric Phoenix Illinois avg Federal benchmark
Total violations 244 69.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 20 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 1,994 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 Phoenix water safe to drink? ▼
Phoenix (PWS ID: IL0312490) has 244 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,994 people using Surface Water sources.
How many people does Phoenix serve? ▼
Phoenix serves 1,994 people in Phoenix, Illinois. It is a Local-owned system using Surface Water water sources with 637 service connections.
What type of violations does Phoenix have? ▼
Phoenix has 244 total violations: 20 health-based violations (MCL exceedances or treatment failures), 140 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Phoenix water? ▼
No PFAS testing data is available for Phoenix under the EPA's UCMR5 monitoring program.
What water source does Phoenix use? ▼
Phoenix uses Surface Water 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.