A85/100
AQUA OHIO - MENTOR — Water Quality Report 2026
Serving 74,500 people · Ohio
Water Source
Surface Water
County
—
System ID
OH4301511
Violations
3
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 40.00 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2025 – June 30, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 AQUA OHIO - MENTOR
Is AQUA OHIO - MENTOR water safe to drink?
AQUA OHIO - MENTOR water receives a grade of A (85/100), which is considered excellent. Out of 70 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has AQUA OHIO - MENTOR detected?
70 contaminants were tested in AQUA OHIO - MENTOR's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does AQUA OHIO - MENTOR have any EPA violations?
Yes, AQUA OHIO - MENTOR has 3 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, MCL. 1 are health-based violations.
How many people does AQUA OHIO - MENTOR serve?
AQUA OHIO - MENTOR serves approximately 74,500 people, Ohio.
What type of water does AQUA OHIO - MENTOR provide?
AQUA OHIO - MENTOR 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 OH4301511.
How does AQUA OHIO - MENTOR compare to other utilities in Ohio?
AQUA OHIO - MENTOR scores 85/100 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.