C57/100
NOBLE UTILITIES AUTHORITY — Water Quality Report 2026
Serving 5,750 people · Oklahoma
Water Source
Groundwater
County
—
System ID
OK2001411
Violations
12
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
3
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
TIER 3Resolved
Exceeded the MCL for disinfection byproducts
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – December 31, 2024Enforcement: 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 NOBLE UTILITIES AUTHORITY
Is NOBLE UTILITIES AUTHORITY water safe to drink?
NOBLE UTILITIES AUTHORITY water receives a grade of C (57/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 12 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has NOBLE UTILITIES AUTHORITY detected?
31 contaminants were tested in NOBLE UTILITIES AUTHORITY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does NOBLE UTILITIES AUTHORITY have any EPA violations?
Yes, NOBLE UTILITIES AUTHORITY has 12 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 7 are health-based violations.
How many people does NOBLE UTILITIES AUTHORITY serve?
NOBLE UTILITIES AUTHORITY serves approximately 5,750 people, Oklahoma.
What type of water does NOBLE UTILITIES AUTHORITY provide?
NOBLE UTILITIES AUTHORITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OK2001411.
How does NOBLE UTILITIES AUTHORITY compare to other utilities in Oklahoma?
NOBLE UTILITIES AUTHORITY scores 57/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Oklahoma state page for a full comparison of water systems.