Dixon, OK Tap Water Quality 2026

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

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

Main Utility: Seminole Co. Rwd #1 PWSID: OK3006702 Updated: 2026 Q2

✅

No federal limits exceeded on record

Lead is 0.71 ppb, 5% of the action level and no violations are open. PFAS has never been sampled at this system.

Dixon earns a B for water quality

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

Lead: 0.71 ppb — 5% of the federal action level

PFAS never sampled at this system

57 violations since 2015, 44 health-based

No violations currently open

Dixon's lead level vs. all Oklahoma community water systems

0 ppb5 ppb10 ppb15 ppb

Lead level: 0.71 ppb — 5% of the federal action level

✓ Lower lead than 91% of Oklahoma utilities

Population Served

168

~119 connections

Water Source

Surface water

Purchased from another system — SDWIS source code SWP

Active Violations

57 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)

90th percentile of tap samples collected across the distribution system

5% of EPA action level

0.71 ppb

Action level: 15 ppb

The 90th-percentile lead result is 0.71 ppb, 5% 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)

Contaminant	Type	Measured	Limit	Period	Status
TTHM	MCL EXCEEDANCE	0.097 MG/L	0.080 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.081 MG/L	0.080 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.085 MG/L	0.080 mg/L	2025	Archived
TTHM	MCL EXCEEDANCE	0.09 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
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2024	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2024	Resolved
TTHM	MCL EXCEEDANCE	0.096 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.091 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.085 MG/L	0.080 mg/L	2024	Archived
TTHM	MCL EXCEEDANCE	0.096 MG/L	0.080 mg/L	2023	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2023	Resolved
TTHM	MCL EXCEEDANCE	0.091 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.094 MG/L	0.080 mg/L	2023	Archived
TTHM	MCL EXCEEDANCE	0.1 MG/L	0.080 mg/L	2023	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2022	Resolved
TTHM	MCL EXCEEDANCE	0.09 MG/L	0.080 mg/L	2022	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2022	Resolved
TTHM	MCL EXCEEDANCE	0.103 MG/L	0.080 mg/L	2022	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2022	Resolved
TTHM	MCL EXCEEDANCE	0.103 MG/L	0.080 mg/L	2022	Archived
TTHM	MCL EXCEEDANCE	0.108 MG/L	0.080 mg/L	2022	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2021	Resolved
TTHM	MCL EXCEEDANCE	0.105 MG/L	0.080 mg/L	2021	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2021	Resolved
TTHM	MCL EXCEEDANCE	0.103 MG/L	0.080 mg/L	2021	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2021	Resolved
TTHM	MCL EXCEEDANCE	0.098 MG/L	0.080 mg/L	2021	Archived
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2021	Archived
TTHM	MCL EXCEEDANCE	0.096 MG/L	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.095 MG/L	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.103 MG/L	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.13 MG/L	0.080 mg/L	2020	Archived
TTHM	MCL EXCEEDANCE	0.132 MG/L	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	0.139 MG/L	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	0.139 MG/L	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	0.133 MG/L	0.080 mg/L	2019	Archived
TTHM	MCL EXCEEDANCE	0.143 MG/L	0.080 mg/L	2018	Archived
TTHM	MCL EXCEEDANCE	0.149 MG/L	0.080 mg/L	2018	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2018	Resolved
TTHM	MCL EXCEEDANCE	0.164 MG/L	0.080 mg/L	2018	Archived
TTHM	MCL EXCEEDANCE	0.178 MG/L	0.080 mg/L	2018	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.151 MG/L	0.080 mg/L	2017	Archived
TTHM	MONITORING AND REPORTING	—	0.080 mg/L	2017	Resolved
TTHM	MCL EXCEEDANCE	0.16 MG/L	0.080 mg/L	2017	Archived
TTHM	MCL EXCEEDANCE	0.163 MG/L	0.080 mg/L	2017	Archived
TTHM	MCL EXCEEDANCE	0.189 MG/L	0.080 mg/L	2017	Archived
TTHM	MCL EXCEEDANCE	0.172 MG/L	0.080 mg/L	2016	Archived
TTHM	MCL EXCEEDANCE	0.163 MG/L	0.080 mg/L	2016	Archived
TTHM	MCL EXCEEDANCE	0.165 MG/L	0.080 mg/L	2016	Archived
TTHM	MCL EXCEEDANCE	0.157 MG/L	0.080 mg/L	2016	Archived
Coliform (TCR)	MCL EXCEEDANCE	—	5% of samples	2015	Resolved
TTHM	MCL EXCEEDANCE	0.148 MG/L	0.080 mg/L	2015	Archived
Consumer Confidence Rule	OTHER	—	—	2015	Resolved
TTHM	MCL EXCEEDANCE	0.157 MG/L	0.080 mg/L	2015	Archived

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

57 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 Seminole Co. Rwd #1

PWSID OK3006702

Water source Surface water — Purchased from another system — SDWIS source code SWP

Population served 168

Service connections 119

Systems serving this area 2

Regulator State primacy agency

Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Dixon tap water safe to drink? ▼

No federal limit is exceeded on record. No violations are currently open. Lead is 0.71 ppb, 5% of the action level.

Does Dixon 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 Dixon? ▼

Seminole Co. Rwd #1 (PWSID OK3006702), 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 2025-09-16. No significant deficiencies were recorded.

What Should Dixon Residents Do?

Read your annual water report

Your supplier publishes a Consumer Confidence Report each July covering the prior year.

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.

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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