A88/100
Columbiana Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 6,727 residents · Ohio
What's In Columbiana's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
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
Water Utility Details
COLUMBIANA CITY PWS
Population Served
6,727
Water Source
Groundwater
System ID
OH1500312
Frequently Asked Questions About Columbiana Water
Is Columbiana tap water safe to drink?
Columbiana, Ohio tap water receives a grade of A (88/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Columbiana's water?
Of the 32 contaminants tested in Columbiana's water supply, the most notable include Copper (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Columbiana have any water quality violations?
Yes, Columbiana has 4 EPA violation(s) on record, with the most recent in 2024. Violation types include Other. None of these are classified as health-based violations.
Do I need a water filter in Columbiana?
Based on EPA data, using a water filter in Columbiana is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Columbiana's tap water come from?
Columbiana's drinking water is sourced from groundwater and supplied by COLUMBIANA CITY PWS. The system serves approximately 6,727 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Columbiana's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Columbiana's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Columbiana's water compare to other cities in Ohio?
Columbiana's water quality score of 88/100 earns a grade of A, which is considered excellent. This places Columbiana among the better-performing water systems in Ohio. Visit our Ohio state page to see how all cities in the state compare.
What should I do if I'm concerned about Columbiana's water quality?
If you have concerns about Columbiana's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (COLUMBIANA CITY PWS) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.