B79/100
WESTERN GUERNSEY REGIONAL WATER DISTRICT — Water Quality Report 2026
Serving 3,225 people · Ohio
Water Source
Purchased Surface Water
County
—
System ID
OH3001103
Violations
9
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 81.00 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
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, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: 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, 2024 – September 30, 2024Rule: Stage 2 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 WESTERN GUERNSEY REGIONAL WATER DISTRICT
Is WESTERN GUERNSEY REGIONAL WATER DISTRICT water safe to drink?
WESTERN GUERNSEY REGIONAL WATER DISTRICT water receives a grade of B (79/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has WESTERN GUERNSEY REGIONAL WATER DISTRICT detected?
2 contaminants were tested in WESTERN GUERNSEY REGIONAL WATER DISTRICT's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does WESTERN GUERNSEY REGIONAL WATER DISTRICT have any EPA violations?
Yes, WESTERN GUERNSEY REGIONAL WATER DISTRICT has 9 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, Other, MCL. 1 are health-based violations.
How many people does WESTERN GUERNSEY REGIONAL WATER DISTRICT serve?
WESTERN GUERNSEY REGIONAL WATER DISTRICT serves approximately 3,225 people, Ohio.
What type of water does WESTERN GUERNSEY REGIONAL WATER DISTRICT provide?
WESTERN GUERNSEY REGIONAL WATER DISTRICT sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OH3001103.
How does WESTERN GUERNSEY REGIONAL WATER DISTRICT compare to other utilities in Ohio?
WESTERN GUERNSEY REGIONAL WATER DISTRICT scores 79/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Ohio state page for a full comparison of water systems.