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Bentley, OK Tap Water Quality 2026

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

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

Main Utility: Atoka Co. Rws & Swmd #4 PWSID: OK1010412 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.13 ppb, 8% of the action level and no violations are open. PFAS has never been sampled at this system.

C

Bentley earns a C for water quality

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

Lead: 1.13 ppb — 8% of the federal action level
PFAS never sampled at this system
85 violations since 2015, 62 health-based
No violations currently open
Bentley's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.13 ppb — 8% of the federal action level
✓ Lower lead than 76% of Oklahoma utilities
Population Served
42
~3197 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
85 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
8% of EPA action level
1.13 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.13 ppb, 8% 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
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2025 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2025 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.55 RATIO TT 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.073 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2025 Archived
Consumer Confidence Rule OTHER — — 2025 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.073 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2025 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.68 RATIO TT 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.069 MG/L 0.060 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.083 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.093 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.095 MG/L 0.080 mg/L 2025 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.67 RATIO TT 2025 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2025 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.67 RATIO TT 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.079 MG/L 0.060 mg/L 2025 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.079 MG/L 0.060 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.109 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.119 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
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.093 MG/L 0.060 mg/L 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.075 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.119 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.126 MG/L 0.080 mg/L 2024 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.88 RATIO TT 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.073 MG/L 0.060 mg/L 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.085 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.116 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.121 MG/L 0.080 mg/L 2024 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.94 RATIO TT 2024 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.062 MG/L 0.060 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.106 MG/L 0.080 mg/L 2024 Archived
TTHM MCL EXCEEDANCE 0.106 MG/L 0.080 mg/L 2024 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.87 RATIO TT 2024 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.73 RATIO TT 2023 Archived
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2023 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2023 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.7 RATIO TT 2023 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.63 RATIO TT 2023 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.84 RATIO TT 2023 Archived
CARBON, TOTAL TREATMENT TECHNIQUE 0.96 RATIO TT 2022 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2022 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.94 RATIO TT 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.9 RATIO TT 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.91 RATIO TT 2022 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.89 RATIO TT 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.99 RATIO TT 2021 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2021 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.103 MG/L 0.060 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2017 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.085 MG/L 0.060 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.104 MG/L 0.080 mg/L 2017 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.097 MG/L 0.060 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.135 MG/L 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.121 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.152 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.117 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.172 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.138 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.158 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.167 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.186 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.106 MG/L 0.060 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.116 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.088 MG/L 0.060 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.109 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.065 MG/L 0.060 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

85 violations are on record since 2015, of which 62 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Atoka Co. Rws & Swmd #4
PWSID OK1010412
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 42
Service connections 3,197
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Bentley tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.13 ppb, 8% of the action level.
Does Bentley 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 Bentley? ▼
Atoka Co. Rws & Swmd #4 (PWSID OK1010412). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-05-22. Inspectors recorded 1 significant deficiency.

What Should Bentley 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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