F0/100
Columbus Grove Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 2,137 residents · Ohio
What's In Columbus Grove'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) | 479.00 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
4
Violations (last 5yr)
3
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – December 31, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Surface water treatment technique failure
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
COLUMBUS GROVE VILLAGE
Population Served
2,137
Water Source
Groundwater
System ID
OH6900112
Frequently Asked Questions About Columbus Grove Water
Is Columbus Grove tap water safe to drink?
Columbus Grove, Ohio tap water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA maximum contaminant levels and 72 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Columbus Grove's water?
Of the 32 contaminants tested in Columbus Grove'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 Columbus Grove have any water quality violations?
Yes, Columbus Grove has 72 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, TT. 5 of these are health-based violations, which are the most serious category.
Do I need a water filter in Columbus Grove?
Based on EPA data, using a water filter in Columbus Grove 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 Columbus Grove's tap water come from?
Columbus Grove's drinking water is sourced from groundwater and supplied by COLUMBUS GROVE VILLAGE. The system serves approximately 2,137 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Columbus Grove'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. Columbus Grove'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 Columbus Grove's water compare to other cities in Ohio?
Columbus Grove's water quality score of 0/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Ohio state page to see how all cities in the state compare.
What should I do if I'm concerned about Columbus Grove's water quality?
If you have concerns about Columbus Grove'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 (COLUMBUS GROVE VILLAGE) 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.