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Quinlan, OK Tap Water Quality 2026

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

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

Main Utility: Quinlan Community Rwd #1 PWSID: OK2007708 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.40 ppb, 16% of the action level and no violations are open. PFAS has never been sampled at this system.

B

Quinlan earns a B for water quality

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

Lead: 2.40 ppb — 16% of the federal action level
PFAS never sampled at this system
51 violations since 2015, 0 health-based
No violations currently open
Quinlan's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.40 ppb — 16% of the federal action level
✓ Lower lead than 38% of Oklahoma utilities
Population Served
28
~154 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
51 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
16% of EPA action level
2.40 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.40 ppb, 16% 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
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2025 Archived
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2025 Archived
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2025 Archived
Gross Beta Particle Activity MONITORING AND REPORTING — 4 mrem/yr 2025 Archived
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2025 Archived
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2025 Archived
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2025 Archived
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2025 Archived
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2025 Archived
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2025 Archived
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2025 Archived
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2025 Archived
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
Benzene MONITORING AND REPORTING — 0.005 mg/L 2025 Archived
Toluene MONITORING AND REPORTING — 1 mg/L 2025 Archived
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2025 Archived
Styrene MONITORING AND REPORTING — 0.1 mg/L 2025 Archived
Nitrate-Nitrite MONITORING AND REPORTING — — 2025 Archived
Nitrate-Nitrite MONITORING AND REPORTING — — 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2017–2022 Archived
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2017–2022 Archived
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2017–2022 Archived
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2017–2022 Archived
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2017–2022 Archived
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2017–2022 Archived
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2017–2022 Archived
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2017–2022 Archived
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2017–2022 Archived
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2017–2022 Archived
Benzene MONITORING AND REPORTING — 0.005 mg/L 2017–2022 Archived
Toluene MONITORING AND REPORTING — 1 mg/L 2017–2022 Archived
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2017–2022 Archived
Styrene MONITORING AND REPORTING — 0.1 mg/L 2017–2022 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015–2017 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015–2017 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

51 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Quinlan Community Rwd #1
PWSID OK2007708
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 28
Service connections 154
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Quinlan tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.40 ppb, 16% of the action level.
Does Quinlan 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 Quinlan? ▼
Quinlan Community Rwd #1 (PWSID OK2007708). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-04-02. No significant deficiencies were recorded.

What Should Quinlan 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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