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Hanson, OK Tap Water Quality 2026

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

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

Main Utility: Sequoyah Co. Rwd #3 PWSID: OK3006804 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.50 ppb, 10% of the action level and no violations are open. PFAS has never been sampled at this system.

C

Hanson earns a C for water quality

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

Lead: 1.50 ppb — 10% of the federal action level
PFAS never sampled at this system
11 violations since 2015, 5 health-based
No violations currently open
Hanson's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.50 ppb — 10% of the federal action level
✓ Lower lead than 66% of Oklahoma utilities
Population Served
58
~416 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
11 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
10% of EPA action level
1.50 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.50 ppb, 10% 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
Lead and Copper Rule MONITORING AND REPORTING — TT 2026 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Unaddressed
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Addressed
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Addressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Unaddressed
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Unaddressed
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 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

11 violations are on record since 2015, of which 5 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Sequoyah Co. Rwd #3
PWSID OK3006804
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 58
Service connections 416
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Hanson tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.50 ppb, 10% of the action level.
Does Hanson 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 Hanson? ▼
Sequoyah Co. Rwd #3 (PWSID OK3006804). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2025-08-21. Inspectors recorded 1 significant deficiency.

What Should Hanson 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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