States ›Illinois ›Montgomery County ›Donnellson

Donnellson, IL Tap Water Quality 2026

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

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

Main Utility: Donnellson PWSID: IL0054360 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

C

Donnellson earns a C for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: not detected
PFAS never sampled at this system
63 violations since 2015, 29 health-based
No violations currently open
Donnellson's lead level vs. all Illinois community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Illinois utilities
Population Served
145
~110 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
63 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Public Notice OTHER — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2025 Archived
Public Notice OTHER — — 2025 Unaddressed
Consumer Confidence Rule OTHER — — 2025 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Public Notice OTHER — — 2023 Unaddressed
Public Notice OTHER — — 2022 Resolved
TTHM MCL EXCEEDANCE 0.094 MG/L 0.080 mg/L 2022 Resolved
Public Notice OTHER — — 2022 Resolved
Public Notice OTHER — — 2022 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.07 MG/L 0.060 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.127 MG/L 0.080 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.115 MG/L 0.080 mg/L 2022 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.071 MG/L 0.060 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.137 MG/L 0.080 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.082 MG/L 0.060 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.081 MG/L 0.060 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.129 MG/L 0.080 mg/L 2021 Resolved
Consumer Confidence Rule OTHER — — 2021 Resolved
TTHM MCL EXCEEDANCE 0.128 MG/L 0.080 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.064 MG/L 0.060 mg/L 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.073 MG/L 0.060 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.132 MG/L 0.080 mg/L 2021 Resolved
Public Notice OTHER — — 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.134 MG/L 0.080 mg/L 2020 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.067 MG/L 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.129 MG/L 0.080 mg/L 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Public Notice OTHER — — 2020 Resolved
TTHM MCL EXCEEDANCE 0.103 MG/L 0.080 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.114 MG/L 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.064 MG/L 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.113 MG/L 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.068 MG/L 0.060 mg/L 2019 Resolved
Consumer Confidence Rule OTHER — — 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.065 MG/L 0.060 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.11 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.105 MG/L 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.065 MG/L 0.060 mg/L 2019 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2018 Resolved
Public Notice OTHER — — 2016 Resolved
Public Notice OTHER — — 2016 Resolved
Consumer Confidence Rule OTHER — — 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2016 Resolved
Coliform (TCR) MONITORING AND REPORTING — 5% of samples 2015 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2015 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

63 violations are on record since 2015, of which 29 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Donnellson
PWSID IL0054360
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 145
Service connections 110
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Donnellson tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Donnellson water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Donnellson? ▼
Donnellson (PWSID IL0054360). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2023-09-14. Inspectors recorded 2 significant deficiencies.

What Should Donnellson 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.

Nearby Cities in Illinois

Litchfield, Il Tap Water Quality 2026 Montgomery Hillsboro, Il Tap Water Quality 2026 Montgomery Nokomis, Il Tap Water Quality 2026 Montgomery Raymond, Il Tap Water Quality 2026 Montgomery Farmersville, Il Tap Water Quality 2026 Montgomery Witt, Il Tap Water Quality 2026 Montgomery