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Theodosia, MO Tap Water Quality 2026

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

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

Main Utility: Ozark County Pwsd 1 PWSID: MO5024444 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.53 ppb, 4% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Theodosia earns a B for water quality

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

Lead: 0.53 ppb — 4% of the federal action level
PFAS never sampled at this system
43 violations since 2015, 38 health-based
No violations currently open
Theodosia's lead level vs. all Missouri community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.53 ppb — 4% of the federal action level
✓ Lower lead than 100% of Missouri utilities
Population Served
188
~216 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
43 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
4% of EPA action level
0.53 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.53 ppb, 4% 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
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17.53 PCI/L 15 pCi/L 2019–2020 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 10.43 PCI/L 5 pCi/L 2019–2020 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17.87 PCI/L 15 pCi/L 2019–2020 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.88 PCI/L 5 pCi/L 2019–2020 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 17.63 PCI/L 15 pCi/L 2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 10 PCI/L 5 pCi/L 2019 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 21.73 PCI/L 15 pCi/L 2018–2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 10.18 PCI/L 5 pCi/L 2018–2019 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 23.89 PCI/L 15 pCi/L 2018–2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 11.08 PCI/L 5 pCi/L 2018–2019 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 25 PCI/L 15 pCi/L 2018–2019 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 11.25 PCI/L 5 pCi/L 2018–2019 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 30.28 PCI/L 15 pCi/L 2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 10.45 PCI/L 5 pCi/L 2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 26.82 PCI/L 15 pCi/L 2017–2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.28 PCI/L 5 pCi/L 2017–2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 26.32 PCI/L 15 pCi/L 2017–2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 7.8 PCI/L 5 pCi/L 2017–2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 26.72 PCI/L 15 pCi/L 2017–2018 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 8.13 PCI/L 5 pCi/L 2017–2018 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 23.98 PCI/L 15 pCi/L 2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 8.9 PCI/L 5 pCi/L 2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.8 PCI/L 5 pCi/L 2016–2017 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 26.26 PCI/L 15 pCi/L 2016–2017 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 25.07 PCI/L 15 pCi/L 2016–2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.93 PCI/L 5 pCi/L 2016–2017 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 26.05 PCI/L 15 pCi/L 2016–2017 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.23 PCI/L 5 pCi/L 2016–2017 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 25.8 PCI/L 15 pCi/L 2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.05 PCI/L 5 pCi/L 2016 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 27.36 PCI/L 15 pCi/L 2015–2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.28 PCI/L 5 pCi/L 2015–2016 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2015 Resolved
Radium-226 MONITORING AND REPORTING — — 2015 Resolved
Radium-228 MONITORING AND REPORTING — — 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 29.33 PCI/L 15 pCi/L 2015–2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 8.93 PCI/L 5 pCi/L 2015–2016 Resolved
Coliform (TCR) MONITORING AND REPORTING — 5% of samples 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 29.1 UG/L 15 pCi/L 2015–2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 9.2 UG/L 5 pCi/L 2015–2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 26.62 PCI/L 15 pCi/L 2015 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 8.45 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

43 violations are on record since 2015, of which 38 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Ozark County Pwsd 1
PWSID MO5024444
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 188
Service connections 216
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Theodosia tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.53 ppb, 4% of the action level.
Does Theodosia 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 Theodosia? ▼
Ozark County Pwsd 1 (PWSID MO5024444). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-07-23. No significant deficiencies were recorded.

What Should Theodosia 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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