A90/100
TRI-COUNTY WATER AUTHORITY — Water Quality Report 2026
Serving 2,370 people · Ohio
Water Source
Purchased Groundwater
County
—
System ID
OH3401403
Violations
7
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: December 20, 2023 – April 19, 2024Rule: Ground Water RuleEnforcement: 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: November 1, 2022 – November 30, 2022Rule: Total Coliform 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 TRI-COUNTY WATER AUTHORITY
Is TRI-COUNTY WATER AUTHORITY water safe to drink?
TRI-COUNTY WATER AUTHORITY water receives a grade of A (90/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has TRI-COUNTY WATER AUTHORITY detected?
1 contaminants were tested in TRI-COUNTY WATER AUTHORITY's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does TRI-COUNTY WATER AUTHORITY have any EPA violations?
Yes, TRI-COUNTY WATER AUTHORITY has 7 EPA violation(s) on record, with the most recent in 2023. Violation types include Other, MON, MR.
How many people does TRI-COUNTY WATER AUTHORITY serve?
TRI-COUNTY WATER AUTHORITY serves approximately 2,370 people, Ohio.
What type of water does TRI-COUNTY WATER AUTHORITY provide?
TRI-COUNTY WATER AUTHORITY sources its water from purchased groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH3401403.
How does TRI-COUNTY WATER AUTHORITY compare to other utilities in Ohio?
TRI-COUNTY WATER AUTHORITY scores 90/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Ohio state page for a full comparison of water systems.