States ›Oklahoma ›Okmulgee County ›Preston

Preston, OK Tap Water Quality 2026

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

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

Main Utility: Okmulgee Co. Rwd #2 (preston) PWSID: OK3005604 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

B

Preston earns a B for water quality

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

Lead: not detected
PFAS never sampled at this system
104 violations since 2015, 69 health-based
No violations currently open
Preston's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Oklahoma utilities
Population Served
147
~976 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
104 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Unaddressed
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2025 Archived
Chloramine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2025 Archived
TTHM MCL EXCEEDANCE 0.084 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
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Consumer Confidence Rule OTHER — — 2022 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2022 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2022 Resolved
Chloramine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2022 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.067 MG/L 0.060 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.096 MG/L 0.080 mg/L 2022 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.062 MG/L 0.060 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.087 MG/L 0.060 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.099 MG/L 0.080 mg/L 2021 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.088 MG/L 0.060 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.063 MG/L 0.060 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.094 MG/L 0.080 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2021 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.064 MG/L 0.060 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.096 MG/L 0.080 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.115 MG/L 0.080 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 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
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.068 MG/L 0.060 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.15 MG/L 0.080 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.111 MG/L 0.080 mg/L 2020 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.065 MG/L 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.136 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.097 MG/L 0.080 mg/L 2020 Archived
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.075 MG/L 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.153 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.108 MG/L 0.080 mg/L 2020 Archived
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.087 MG/L 0.060 mg/L 2020 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.105 MG/L 0.060 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.074 MG/L 0.060 mg/L 2020 Resolved
TTHM MCL EXCEEDANCE 0.163 MG/L 0.080 mg/L 2020 Archived
TTHM MCL EXCEEDANCE 0.133 MG/L 0.080 mg/L 2020 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.089 MG/L 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.074 MG/L 0.060 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.115 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.144 MG/L 0.080 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
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.084 MG/L 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.065 MG/L 0.060 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.142 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.115 MG/L 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.07 MG/L 0.060 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.1 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.135 MG/L 0.080 mg/L 2019 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.069 MG/L 0.060 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.118 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.114 MG/L 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.071 MG/L 0.060 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.121 MG/L 0.080 mg/L 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.102 MG/L 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.07 MG/L 0.060 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.099 MG/L 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.069 MG/L 0.060 mg/L 2017 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.099 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.081 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.091 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.127 MG/L 0.080 mg/L 2016 Archived
TTHM MCL EXCEEDANCE 0.132 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.061 MG/L 0.060 mg/L 2016 Archived
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2016 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.089 MG/L 0.060 mg/L 2016 Archived
TTHM MCL EXCEEDANCE 0.1 MG/L 0.080 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.122 MG/L 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.083 MG/L 0.060 mg/L 2016 Resolved
TTHM MCL EXCEEDANCE 0.108 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.078 MG/L 0.060 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.073 MG/L 0.060 mg/L 2015 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 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

104 violations are on record since 2015, of which 69 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Okmulgee Co. Rwd #2 (Preston)
PWSID OK3005604
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 147
Service connections 976
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Preston tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Preston 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 Preston? ▼
Okmulgee Co. Rwd #2 (Preston) (PWSID OK3005604), one of 2 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2024-10-04. No significant deficiencies were recorded.

What Should Preston 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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