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F10/100

TRI-COUNTY RWD #2 — Water Quality Report 2026

Serving 5,172 people · Oklahoma

Water Source
Groundwater
County
—
System ID
OK2006362
Violations
47

Contaminant Test Results

4 contaminants above EPA health goals
ContaminantDetectedLimit (MCL)Status
Copper (90th percentile)
1.49 mg/L1.30 mg/LOver Limit
PFHxS
0.022 µg/L0.010 µg/LOver Limit
PFOS
0.006 µg/L0.004 µg/LOver Limit
Lead (90th percentile)
0.004 mg/L0.015 mg/LAbove Goal

EPA Violation History

6

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: April 1, 2024 – June 30, 2024Enforcement: 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: October 1, 2021 – December 31, 2021Enforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 1, 2021 – September 30, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2021 – September 30, 2021Rule: Stage 1 DBPREnforcement: 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 TRI-COUNTY RWD #2

Is TRI-COUNTY RWD #2 water safe to drink?

TRI-COUNTY RWD #2 water receives a grade of F (10/100), which is considered failing. 3 contaminant(s) exceed EPA legal limits and 47 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has TRI-COUNTY RWD #2 detected?

32 contaminants were tested in TRI-COUNTY RWD #2's water. Notable contaminants include PFHxS, PFOS, Copper (90th percentile), Lead (90th percentile). 3 exceed EPA legal limits (MCLs). 4 exceed EPA health goals (MCLGs).

Does TRI-COUNTY RWD #2 have any EPA violations?

Yes, TRI-COUNTY RWD #2 has 47 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 4 are health-based violations.

How many people does TRI-COUNTY RWD #2 serve?

TRI-COUNTY RWD #2 serves approximately 5,172 people, Oklahoma.

What type of water does TRI-COUNTY RWD #2 provide?

TRI-COUNTY RWD #2 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OK2006362.

How does TRI-COUNTY RWD #2 compare to other utilities in Oklahoma?

TRI-COUNTY RWD #2 scores 10/100 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.