B72/100
TOLEDO CITY OF — Water Quality Report 2026
Serving 360,000 people · Ohio
Water Source
Surface Water
County
—
System ID
OH4801411
Violations
8
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 20.00 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: January 25, 2024 – June 28, 2024Enforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: March 1, 2023 – March 31, 2023Rule: Surface Water Treatment 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: January 1, 2022 – March 31, 2022Rule: 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 TOLEDO CITY OF
Is TOLEDO CITY OF water safe to drink?
TOLEDO CITY OF water receives a grade of B (72/100), which is considered good. Out of 77 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has TOLEDO CITY OF detected?
77 contaminants were tested in TOLEDO CITY OF's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does TOLEDO CITY OF have any EPA violations?
Yes, TOLEDO CITY OF has 8 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, TT, MR. 3 are health-based violations.
How many people does TOLEDO CITY OF serve?
TOLEDO CITY OF serves approximately 360,000 people, Ohio.
What type of water does TOLEDO CITY OF provide?
TOLEDO CITY OF 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 OH4801411.
How does TOLEDO CITY OF compare to other utilities in Ohio?
TOLEDO CITY OF scores 72/100 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.