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Park Forest, IL Tap Water Quality 2026

Water quality report for Park Forest, IL — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Park Forest's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Park Forest PWSID: IL0314740 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.30 ppb, 15% of the action level and no violations are open. No PFAS was detected.

B

Park Forest earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 2.30 ppb — 15% of the federal action level
PFAS tested, none detected
33 violations since 2015, 1 health-based
No violations currently open
Park Forest's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.30 ppb — 15% of the federal action level
✓ Lower lead than 58% of Illinois utilities
Population Served
19879
~9060 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
33 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
15% of EPA action level
2.30 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.30 ppb, 15% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2023–2025 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2020–2022 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2020–2022 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2020–2022 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2020–2022 Resolved
Endothall MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2020–2022 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2020–2022 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2020–2022 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2020–2022 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2020–2022 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2020–2022 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2020–2022 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2020–2022 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2020–2022 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2020–2022 Resolved
Aldicarb MONITORING AND REPORTING — — 2020–2022 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2020–2022 Resolved
LASSO MONITORING AND REPORTING — — 2020–2022 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2020–2022 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2020–2022 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2020–2022 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2020–2022 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2020–2022 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2020–2022 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2020–2022 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2020–2022 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Revised Total Coliform Rule MCL EXCEEDANCE — — 2019 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

33 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Park Forest
PWSID IL0314740
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 19,879
Service connections 9,060
Systems serving this area 4
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Park Forest tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.30 ppb, 15% of the action level.
Does Park Forest water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Park Forest? ▼
Park Forest (PWSID IL0314740), one of 4 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-12-02. Inspectors recorded 1 significant deficiency.

What Should Park Forest Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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