A91/100
LITTLE WALNUT WATER TREATMENT FACILITY — Water Quality Report 2026
Serving 1,428 people · Ohio
Water Source
Groundwater
County
—
System ID
OH2303212
Violations
1
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 566.00 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2009.
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 LITTLE WALNUT WATER TREATMENT FACILITY
Is LITTLE WALNUT WATER TREATMENT FACILITY water safe to drink?
LITTLE WALNUT WATER TREATMENT FACILITY water receives a grade of A (91/100), which is considered excellent. 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 LITTLE WALNUT WATER TREATMENT FACILITY detected?
2 contaminants were tested in LITTLE WALNUT WATER TREATMENT FACILITY's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does LITTLE WALNUT WATER TREATMENT FACILITY have any EPA violations?
Yes, LITTLE WALNUT WATER TREATMENT FACILITY has 1 EPA violation(s) on record, with the most recent in 2009. Violation types include Other.
How many people does LITTLE WALNUT WATER TREATMENT FACILITY serve?
LITTLE WALNUT WATER TREATMENT FACILITY serves approximately 1,428 people, Ohio.
What type of water does LITTLE WALNUT WATER TREATMENT FACILITY provide?
LITTLE WALNUT WATER TREATMENT FACILITY sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH2303212.
How does LITTLE WALNUT WATER TREATMENT FACILITY compare to other utilities in Ohio?
LITTLE WALNUT WATER TREATMENT FACILITY scores 91/100 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.