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Thomson, GA Tap Water Quality 2026

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

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

Main Utility: Thomson-Mcduffie Co W&s Comm PWSID: GA1890001 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.10 ppb, 14% of the action level and no violations are open. No PFAS was detected.

B

Thomson earns a B for water quality

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

Lead: 2.10 ppb — 14% of the federal action level
PFAS tested, none detected
35 violations since 2015, 18 health-based
No violations currently open
Thomson's lead level vs. all Georgia community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.10 ppb — 14% of the federal action level
✓ Lower lead than 52% of Georgia utilities
Population Served
6765
~7455 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
35 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
14% of EPA action level
2.10 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.10 ppb, 14% 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
TTHM MCL EXCEEDANCE 0.111 MG/L 0.080 mg/L 2026 Archived
TTHM MCL EXCEEDANCE 0.113 MG/L 0.080 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.061 MG/L 0.060 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.102 MG/L 0.080 mg/L 2025 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2025 Resolved
TTHM MCL EXCEEDANCE 0.104 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.095 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2024 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
Consumer Confidence Rule OTHER — — 2024 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2024 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2023 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2023 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2023 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2023 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2023 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2023 Resolved
Public Notice OTHER — — 2022 Resolved
TTHM MCL EXCEEDANCE 0.099 MG/L 0.080 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.095 MG/L 0.080 mg/L 2022 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2022 Resolved
Consumer Confidence Rule OTHER — — 2021 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017–2025 Archived
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017–2025 Archived
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017–2025 Archived
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017–2025 Archived
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017–2025 Archived
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017–2025 Archived
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 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

35 violations are on record since 2015, of which 18 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Thomson-Mcduffie Co W&S Comm
PWSID GA1890001
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 6,765
Service connections 7,455
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Thomson tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.10 ppb, 14% of the action level.
Does Thomson water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Thomson? ▼
Thomson-Mcduffie Co W&S Comm (PWSID GA1890001). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-08-26. No significant deficiencies were recorded.

What Should Thomson 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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