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Lexington, MO Tap Water Quality 2026

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

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

Main Utility: Lexington Pws PWSID: MO1010464 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.02 ppb, 13% of the action level and no violations are open. No PFAS was detected.

B

Lexington earns a B for water quality

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

Lead: 2.02 ppb — 13% of the federal action level
PFAS tested, none detected
7 violations since 2015, 5 health-based
No violations currently open
Lexington's lead level vs. all Missouri community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.02 ppb — 13% of the federal action level
✓ Lower lead than 54% of Missouri utilities
Population Served
4620
~2034 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
7 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
13% of EPA action level
2.02 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.02 ppb, 13% 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 Unaddressed
Consumer Confidence Rule OTHER — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 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

7 violations are on record since 2015, of which 5 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Lexington Pws
PWSID MO1010464
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 4,620
Service connections 2,034
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Lexington tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.02 ppb, 13% of the action level.
Does Lexington water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Lexington? ▼
Lexington Pws (PWSID MO1010464), one of 2 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2023-08-31. No significant deficiencies were recorded.

What Should Lexington 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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