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Oregon, IL Tap Water Quality 2026

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

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

Main Utility: Oregon PWSID: IL1410400 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.90 ppb, 19% of the action level and no violations are open. No PFAS was detected.

C

Oregon earns a C for water quality

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

Lead: 2.90 ppb — 19% of the federal action level
PFAS tested, none detected
6 violations since 2015, 1 health-based
No violations currently open
Oregon's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.90 ppb — 19% of the federal action level
✓ Lower lead than 49% of Illinois utilities
Population Served
3442
~1569 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
6 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
19% of EPA action level
2.90 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.90 ppb, 19% 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
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Resolved
Consumer Confidence Rule OTHER — — 2025 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2023 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023 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

6 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 Oregon
PWSID IL1410400
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 3,442
Service connections 1,569
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Oregon tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.90 ppb, 19% of the action level.
Does Oregon water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Oregon? ▼
Oregon (PWSID IL1410400). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-11-25. Inspectors recorded 3 significant deficiencies.

What Should Oregon 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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