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Norman, OK Tap Water Quality 2026

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

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

Main Utility: Norman Utilities Authority PWSID: OK1020801 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.55 ppb, 4% of the action level and no violations are open. No PFAS was detected.

A

Norman earns an A for water quality

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

Lead: 0.55 ppb — 4% of the federal action level
PFAS tested, none detected
5 violations since 2015, 1 health-based
No violations currently open
Norman's lead level vs. all Oklahoma community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.55 ppb — 4% of the federal action level
✓ Lower lead than 98% of Oklahoma utilities
Population Served
113005
~42751 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
5 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
4% of EPA action level
0.55 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.55 ppb, 4% 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 REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2021 Resolved
E. COLI MONITORING AND REPORTING — 0 2015 Resolved
E. COLI MONITORING AND REPORTING — 0 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

5 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Norman Utilities Authority
PWSID OK1020801
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 113,005
Service connections 42,751
Systems serving this area 6
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Norman tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.55 ppb, 4% of the action level.
Does Norman water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Norman? ▼
Norman Utilities Authority (PWSID OK1020801), one of 6 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 2026-03-11. No significant deficiencies were recorded.

What Should Norman 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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