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Lanagan, MO Tap Water Quality 2026

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

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

Main Utility: Lanagan Pws PWSID: MO5010449 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 5.75 ppb, 38% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Lanagan earns a B for water quality

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

Lead: 5.75 ppb — 38% of the federal action level
PFAS never sampled at this system
77 violations since 2015, 26 health-based
No violations currently open
Lanagan's lead level vs. all Missouri community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 5.75 ppb — 38% of the federal action level
✓ Lower lead than 9% of Missouri utilities
Population Served
324
~137 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
77 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
38% of EPA action level
5.75 ppb
Action level: 15 ppb
The 90th-percentile lead result is 5.75 ppb, 38% 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 — — 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2022 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2022 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Consumer Confidence Rule OTHER — — 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.7 PCI/L 5 pCi/L 2020 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2020–2022 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2020–2022 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2020–2022 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2020–2022 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2020–2022 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2020–2022 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2020–2022 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2020–2022 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2020–2022 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2020–2022 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2020–2022 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2020–2022 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2020–2022 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2020–2022 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2020–2022 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2020–2022 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2020–2022 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2020–2022 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.68 PCI/L 5 pCi/L 2019–2020 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.78 PCI/L 5 pCi/L 2019–2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Public Notice OTHER — — 2019 Resolved
Public Notice OTHER — — 2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.05 PCI/L 5 pCi/L 2019–2020 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.05 PCI/L 5 pCi/L 2019 Resolved
Public Notice OTHER — — 2018 Resolved
Public Notice OTHER — — 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.3 PCI/L 5 pCi/L 2018–2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.27 PCI/L 5 pCi/L 2018–2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.87 PCI/L 5 pCi/L 2018–2019 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18.13 PCI/L 15 pCi/L 2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.87 PCI/L 5 pCi/L 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018–2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018–2020 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18.38 PCI/L 15 pCi/L 2017–2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.58 PCI/L 5 pCi/L 2017–2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 19.03 PCI/L 15 pCi/L 2017–2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18.13 PCI/L 15 pCi/L 2017–2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 15.9 PCI/L 15 pCi/L 2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.55 PCI/L 5 pCi/L 2016–2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.78 PCI/L 5 pCi/L 2016–2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.05 PCI/L 5 pCi/L 2016–2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.2 PCI/L 5 pCi/L 2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.23 PCI/L 5 pCi/L 2015–2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 18.1 PCI/L 15 pCi/L 2015–2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6.1 PCI/L 5 pCi/L 2015–2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 19.15 PCI/L 15 pCi/L 2015–2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.63 PCI/L 5 pCi/L 2015–2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 20.15 PCI/L 15 pCi/L 2015 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 5.73 PCI/L 5 pCi/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

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

About the Main Water System

Utility Lanagan Pws
PWSID MO5010449
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 324
Service connections 137
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Lanagan tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 5.75 ppb, 38% of the action level.
Does Lanagan 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 Lanagan? ▼
Lanagan Pws (PWSID MO5010449). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-07-16. No significant deficiencies were recorded.

What Should Lanagan Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
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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