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Coalfield, TN Tap Water Quality 2026

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

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

Main Utility: Cumberland Utility District PWSID: TN0000531 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.30 ppb, 2% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

C

Coalfield earns a C for water quality

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

Lead: 0.30 ppb — 2% of the federal action level
PFAS sampled, too few results to judge
30 violations since 2015, 3 health-based
No violations currently open
Coalfield's lead level vs. all Tennessee community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.30 ppb — 2% of the federal action level
✓ Lower lead than 97% of Tennessee utilities
Population Served
2358
~5796 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
30 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
2% of EPA action level
0.30 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.30 ppb, 2% 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
Revised Total Coliform Rule REPORTING FAILURE — — 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023 Resolved
Public Notice OTHER — — 2023 Resolved
Public Notice OTHER — — 2023 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
TTHM MCL EXCEEDANCE 0.08678 MG/L 0.080 mg/L 2023 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Consumer Confidence Rule OTHER — — 2022 Addressed
TTHM MCL EXCEEDANCE 0.08063 MG/L 0.080 mg/L 2022 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Consumer Confidence Rule OTHER — — 2022 Addressed
Public Notice OTHER — — 2022 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2022 Resolved
Public Notice OTHER — — 2021 Resolved
Consumer Confidence Rule OTHER — — 2021 Addressed
Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Addressed
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 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

30 violations are on record since 2015, of which 3 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Cumberland Utility District
PWSID TN0000531
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 2,358
Service connections 5,796
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Coalfield tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.30 ppb, 2% of the action level.
Does Coalfield water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Coalfield? ▼
Cumberland Utility District (PWSID TN0000531), one of 2 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2026-02-05. Inspectors recorded 3 significant deficiencies.

What Should Coalfield 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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