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Lamar, MO Tap Water Quality 2026

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

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

Main Utility: Lamar Pws PWSID: MO5010446 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.57 ppb, 10% of the action level and no violations are open. PFAS was detected below the federal limit.

B

Lamar earns a B for water quality

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

Lead: 1.57 ppb — 10% of the federal action level
PFAS detected below the federal limit
26 violations since 2015, 19 health-based
No violations currently open
Lamar's lead level vs. all Missouri community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.57 ppb — 10% of the federal action level
✓ Lower lead than 67% of Missouri utilities
Population Served
4222
~2063 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
26 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
10% of EPA action level
1.57 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.57 ppb, 10% 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
Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Archived
TTHM MCL EXCEEDANCE 106 UG/L 0.080 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 114 UG/L 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 64 UG/L 0.060 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 119 UG/L 0.080 mg/L 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2019 Resolved
TTHM MCL EXCEEDANCE 106 UG/L 0.080 mg/L 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2019 Resolved
TTHM MCL EXCEEDANCE 84 UG/L 0.080 mg/L 2019 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2019 Resolved
TTHM MCL EXCEEDANCE 84.4 UG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 83.2 UG/L 0.080 mg/L 2018 Resolved
Public Notice OTHER — — 2017 Resolved
TTHM MCL EXCEEDANCE 81 UG/L 0.080 mg/L 2017 Resolved
Public Notice OTHER — — 2017 Resolved
TTHM MCL EXCEEDANCE 84 UG/L 0.080 mg/L 2017 Resolved
Public Notice OTHER — — 2016 Resolved
TTHM MCL EXCEEDANCE 91 UG/L 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 97 UG/L 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 113 UG/L 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 109 UG/L 0.080 mg/L 2016 Resolved
Public Notice OTHER — — 2015 Resolved
TTHM MCL EXCEEDANCE 103 UG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 90 UG/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

26 violations are on record since 2015, of which 19 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Lamar Pws
PWSID MO5010446
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 4,222
Service connections 2,063
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Lamar tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.57 ppb, 10% of the action level.
Does Lamar water have PFAS? ▼
PFAS was detected but stayed below the federal limit.
Who supplies water to Lamar? ▼
Lamar Pws (PWSID MO5010446), 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 2023-08-09. No significant deficiencies were recorded.

What Should Lamar 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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