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Fair Oaks, OK Tap Water Quality 2026

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

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

Main Utility: Wagoner Co. Rwd #4 PWSID: OK1021529 Updated: 2026 Q2
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PFAS above the federal limit

Lead is 1.00 ppb, 7% of the action level and no violations are open. However, PFAS exceeds the federal limit at 1 of 1 sampling points, running as high as 4.21 times the limit.

D

Fair Oaks earns a D for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.00 ppb — 7% of the federal action level
PFAS above the federal limit at 1 of 1 sampling points
49 violations since 2015, 44 health-based
No violations currently open
Fair Oaks's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.00 ppb — 7% of the federal action level
✓ Lower lead than 87% of Oklahoma utilities
Population Served
42
~13907 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
49 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
7% of EPA action level
1.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.00 ppb, 7% 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
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Archived
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Archived
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Archived
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2023 Archived
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2023 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2022 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2022 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2022 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2022 Archived
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2022 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2021 Resolved
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 mg/L 2021 Archived
Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2021 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2019 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
Consumer Confidence Rule OTHER — — 2016 Resolved
TTHM MCL EXCEEDANCE 0.088 MG/L 0.080 mg/L 2015 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
Coliform (TCR) MCL EXCEEDANCE — 5% of samples 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

49 violations are on record since 2015, of which 44 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Wagoner Co. Rwd #4
PWSID OK1021529
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 42
Service connections 13,907
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Fair Oaks tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 1 of 1 sampling points. No violations are currently open. Lead is 1.00 ppb, 7% of the action level.
Does Fair Oaks water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 1 of 1 sampling points, running as high as 4.21 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Fair Oaks? ▼
Wagoner Co. Rwd #4 (PWSID OK1021529), 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 2025-08-27. No significant deficiencies were recorded.

What Should Fair Oaks Residents Do?

1
Consider a reverse-osmosis filter
Reverse osmosis removes more than 95% of PFAS. Standard carbon pitchers do not.
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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