A88/100
COLUMBIANA CITY PWS — Water Quality Report 2026
Serving 6,727 people · Ohio
Water Source
Groundwater
County
—
System ID
OH1500312
Violations
4
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 10.00 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: December 12, 2024 – July 14, 2025Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: October 26, 2022 – May 30, 2023Enforcement: Resolving — corrective action underway
TIER 3Unresolved
Surface water treatment technique failure
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 COLUMBIANA CITY PWS
Is COLUMBIANA CITY PWS water safe to drink?
COLUMBIANA CITY PWS water receives a grade of A (88/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has COLUMBIANA CITY PWS detected?
32 contaminants were tested in COLUMBIANA CITY PWS's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does COLUMBIANA CITY PWS have any EPA violations?
Yes, COLUMBIANA CITY PWS has 4 EPA violation(s) on record, with the most recent in 2024. Violation types include Other.
How many people does COLUMBIANA CITY PWS serve?
COLUMBIANA CITY PWS serves approximately 6,727 people, Ohio.
What type of water does COLUMBIANA CITY PWS provide?
COLUMBIANA CITY PWS sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is OH1500312.
How does COLUMBIANA CITY PWS compare to other utilities in Ohio?
COLUMBIANA CITY PWS scores 88/100 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.