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Davidson, OK Tap Water Quality 2026

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

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

Main Utility: Davidson PWSID: OK2007104 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 6.44 ppb, 43% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Davidson earns a B for water quality

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

Lead: 6.44 ppb — 43% of the federal action level
PFAS never sampled at this system
54 violations since 2015, 15 health-based
No violations currently open
Davidson's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 6.44 ppb — 43% of the federal action level
✓ Lower lead than 9% of Oklahoma utilities
Population Served
241
~254 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
54 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
43% of EPA action level
6.44 ppb
Action level: 15 ppb
The 90th-percentile lead result is 6.44 ppb, 43% 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
Nitrate-Nitrite MCL EXCEEDANCE 12 MG/L — 2026 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
TTHM MCL EXCEEDANCE 0.131 MG/L 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.081 MG/L 0.080 mg/L 2022 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2022 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2022 Resolved
Nitrate-Nitrite MCL EXCEEDANCE 17 MG/L — 2022 Resolved
Nitrate-Nitrite MCL EXCEEDANCE 11 MG/L — 2022 Resolved
Nitrate-Nitrite MCL EXCEEDANCE 19 MG/L — 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020 Resolved
E. COLI MONITORING AND REPORTING — 0 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
E. COLI MONITORING AND REPORTING — 0 2020 Resolved
Nitrate-Nitrite MCL EXCEEDANCE 13 MG/L — 2020 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
E. COLI MONITORING AND REPORTING — 0 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Nitrate-Nitrite MCL EXCEEDANCE 18 MG/L — 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2019 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2019 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2019 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2019 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2017 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2017–2019 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Archived
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017–2019 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017–2019 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017–2019 Resolved
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2017–2019 Resolved
Consumer Confidence Rule OTHER — — 2016 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2016 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2016 Resolved
Nitrate-Nitrite MCL EXCEEDANCE 13 MG/L — 2016 Resolved
Nitrate-Nitrite MONITORING AND REPORTING — — 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Consumer Confidence Rule OTHER — — 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

54 violations are on record since 2015, of which 15 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Davidson
PWSID OK2007104
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 241
Service connections 254
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Davidson tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 6.44 ppb, 43% of the action level.
Does Davidson 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 Davidson? ▼
Davidson (PWSID OK2007104). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2025-02-25. No significant deficiencies were recorded.

What Should Davidson 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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