F0/100
TAHLEQUAH PWA — Water Quality Report 2026
Serving 14,458 people · Oklahoma
Water Source
Surface Water
County
—
System ID
OK1021701
Violations
27
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 553.00 µg/L | — | Above Goal |
EPA Violation History
6
Violations (last 5yr)
0
Unresolved
3
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, 2023 – December 31, 2023Enforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 3Resolved
Failed to conduct Level 2 Assessment
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: June 30, 2022 – November 28, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued
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 TAHLEQUAH PWA
Is TAHLEQUAH PWA water safe to drink?
TAHLEQUAH PWA water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 27 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has TAHLEQUAH PWA detected?
69 contaminants were tested in TAHLEQUAH PWA's water. Notable contaminants include chlorate. No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does TAHLEQUAH PWA have any EPA violations?
Yes, TAHLEQUAH PWA has 27 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 22 are health-based violations.
How many people does TAHLEQUAH PWA serve?
TAHLEQUAH PWA serves approximately 14,458 people, Oklahoma.
What type of water does TAHLEQUAH PWA provide?
TAHLEQUAH PWA 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 OK1021701.
How does TAHLEQUAH PWA compare to other utilities in Oklahoma?
TAHLEQUAH PWA 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.