F0/100
NORMAN UTILITIES AUTHORITY — Water Quality Report 2026
Serving 104,868 people · Oklahoma
Water Source
Surface Water
County
—
System ID
OK1020801
Violations
93
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | < 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – July 15, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – July 15, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About NORMAN UTILITIES AUTHORITY
Is NORMAN UTILITIES AUTHORITY water safe to drink?
NORMAN UTILITIES AUTHORITY water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 93 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NORMAN UTILITIES AUTHORITY detected?
69 contaminants were tested in NORMAN UTILITIES AUTHORITY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NORMAN UTILITIES AUTHORITY have any EPA violations?
Yes, NORMAN UTILITIES AUTHORITY has 93 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 28 are health-based violations.
How many people does NORMAN UTILITIES AUTHORITY serve?
NORMAN UTILITIES AUTHORITY serves approximately 104,868 people, Oklahoma.
What type of water does NORMAN UTILITIES AUTHORITY provide?
NORMAN UTILITIES AUTHORITY sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OK1020801.
How does NORMAN UTILITIES AUTHORITY compare to other utilities in Oklahoma?
NORMAN UTILITIES AUTHORITY scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Oklahoma state page for a full comparison of water systems.