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Holdenville, OK Tap Water Quality 2026

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

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

Main Utility: Holdenville PWSID: OK1020803 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.80 ppb, 12% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

B

Holdenville earns a B for water quality

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

Lead: 1.80 ppb — 12% of the federal action level
PFAS sampled, too few results to judge
117 violations since 2015, 77 health-based
No violations currently open
Holdenville's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.80 ppb — 12% of the federal action level
✓ Lower lead than 56% of Oklahoma utilities
Population Served
2846
~1928 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
117 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
12% of EPA action level
1.80 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.80 ppb, 12% 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 TREATMENT TECHNIQUE — — 2025 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Archived
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2025 Archived
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2024 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2024 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2024 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Consumer Confidence Rule OTHER — — 2024 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2024 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2022 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2022 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.098 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.102 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.108 MG/L 0.080 mg/L 2022 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.88 RATIO TT 2021 Archived
TTHM MCL EXCEEDANCE 0.111 MG/L 0.080 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.106 MG/L 0.080 mg/L 2021 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
TTHM MCL EXCEEDANCE 0.097 MG/L 0.080 mg/L 2021 Archived
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2021 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.9 RATIO TT 2021 Archived
Consumer Confidence Rule OTHER — — 2021 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.96 RATIO TT 2021 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2021 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2021 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2020 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2020 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2020 Resolved
TTHM MCL EXCEEDANCE 0.088 MG/L 0.080 mg/L 2020 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2017 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2017 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2017 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2017 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2017 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2017 Resolved
TTHM MCL EXCEEDANCE 0.096 MG/L 0.080 mg/L 2016 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2016 Resolved
TTHM MCL EXCEEDANCE 0.103 MG/L 0.080 mg/L 2016 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2016 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2016 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2016 Resolved
TTHM MCL EXCEEDANCE 0.113 MG/L 0.080 mg/L 2016 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2016 Resolved
TTHM MCL EXCEEDANCE 0.121 MG/L 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2015 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2015 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.103 MG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/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

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

About the Main Water System

Utility Holdenville
PWSID OK1020803
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 2,846
Service connections 1,928
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Holdenville tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.80 ppb, 12% of the action level.
Does Holdenville water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Holdenville? ▼
Holdenville (PWSID OK1020803), one of 3 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 2026-01-27. No significant deficiencies were recorded.

What Should Holdenville 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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