C56/100
Bowling Green Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 74,654 residents · Ohio
What's In Bowling Green's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
chlorate | 320.00 µg/L | — | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2020.
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
NORTHWESTERN W AND SD - MCCOMB
Population Served
1,650
Water Source
Purchased Surface Water
System ID
OH3200411
BOWLING GREEN CITY
Population Served
31,578
Water Source
Surface Water
System ID
OH8700311
NORTHWESTERN W AND SD - WESTON
Population Served
3,648
Water Source
Purchased Surface Water
System ID
OH8703211
NORTHWESTERN W AND SD - PORTAGE
Population Served
4,776
Water Source
Purchased Surface Water
System ID
OH8704103
NORTHWESTERN W AND SD - OREGON WTLN 200
Population Served
9,629
Water Source
Purchased Surface Water
System ID
OH8704203
NORTHWESTERN W AND SD - MIDDLETON TWP
Population Served
3,615
Water Source
Purchased Surface Water
System ID
OH8752212
NORTHWESTERN W AND SD - TOLEDO SVC
Population Served
19,758
Water Source
Purchased Surface Water
System ID
OH8752812
Frequently Asked Questions About Bowling Green Water
Is Bowling Green tap water safe to drink?
Bowling Green, Ohio tap water receives a grade of C (56/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 129 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Bowling Green's water?
Of the 73 contaminants tested in Bowling Green's water supply, the most notable include Copper (90th percentile), chlorate. 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Bowling Green have any water quality violations?
Yes, Bowling Green has 129 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MCL. 51 of these are health-based violations, which are the most serious category.
Do I need a water filter in Bowling Green?
Based on EPA data, using a water filter in Bowling Green 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 Bowling Green's tap water come from?
Bowling Green's drinking water is sourced from purchased surface water and supplied by NORTHWESTERN W AND SD - MCCOMB and 6 other water system(s). The system serves approximately 74,654 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Bowling Green'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. Bowling Green'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 Bowling Green's water compare to other cities in Ohio?
Bowling Green's water quality score of 56/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Ohio state page to see how all cities in the state compare.
What should I do if I'm concerned about Bowling Green's water quality?
If you have concerns about Bowling Green'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 (NORTHWESTERN W AND SD - MCCOMB) 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.