States ›Illinois ›Saline County ›Eldorado

Eldorado, IL Tap Water Quality 2026

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

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

Main Utility: Eldorado PWSID: IL1655030 Updated: 2026 Q2
🚨

1 violation currently open

Lead is 1.40 ppb, 9% of the action level. No PFAS was detected.

C

Eldorado earns a C for water quality

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

Lead: 1.40 ppb — 9% of the federal action level
PFAS tested, none detected
1 violations since 2015, 1 health-based
1 violation currently open
Eldorado's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.40 ppb — 9% of the federal action level
✓ Lower lead than 77% of Illinois utilities
Population Served
3732
~2100 connections
Water Source
Groundwater
Purchased groundwater from another system — SDWIS source code GWP
Active Violations
1
1 open of 1 since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
9% of EPA action level
1.40 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.40 ppb, 9% 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 TREATMENT TECHNIQUE — — 2024 Unaddressed
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

1 violation remains open, out of 1 recorded since 2015 (1 health-based).

About the Main Water System

Utility Eldorado
PWSID IL1655030
Water source Groundwater — Purchased groundwater from another system — SDWIS source code GWP
Population served 3,732
Service connections 2,100
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Eldorado tap water safe to drink? ▼
No federal limit is exceeded on record. 1 violation(s) remain open. Lead is 1.40 ppb, 9% of the action level.
Does Eldorado water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Eldorado? ▼
Eldorado (PWSID IL1655030), one of 2 systems serving this area. Groundwater. Purchased groundwater from another system — SDWIS source code GWP
When was this system last inspected? ▼
It was last inspected on 2025-07-11. No significant deficiencies were recorded.

What Should Eldorado 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
Follow the open violation
This system has an unresolved violation. Contact the supplier for its corrective-action schedule.

Nearby Cities in Illinois

Harrisburg, Il Tap Water Quality 2026 Saline Carrier Mills, Il Tap Water Quality 2026 Saline Galatia, Il Tap Water Quality 2026 Saline Raleigh, Il Tap Water Quality 2026 Saline Muddy, Il Tap Water Quality 2026 Saline