Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Ohio Water Quality Reports
Water quality scores for 5 cities in Ohio
Akron
300,000 residents
Cincinnati
1,100,000 residents
Cleveland
1,400,000 residents
Columbus
1,100,000 residents
Toledo
500,000 residents
About Ohio Water Quality
Ohio's water quality is influenced by its agricultural landscape, industrial legacy, and Great Lakes access. Lake Erie provides drinking water for millions of Ohioans, while many communities rely on rivers and groundwater. The state has faced challenges with algal blooms, agricultural runoff, and aging infrastructure.
Based on our analysis of 5 cities in Ohio, the average water quality score is 95/100. The highest-rated city is Toledo with a score of 95/100, while Akron has the most room for improvement at 95/100.
Water Sources in Ohio
Lake Erie serves as the primary water source for northern Ohio, including Cleveland and Toledo. The Ohio River supplies water for Cincinnati and other southern communities. Central Ohio relies heavily on reservoirs and groundwater. Agricultural regions depend on local aquifers and smaller surface water sources.
Common Water Contaminants in Ohio
These contaminants have been detected in various Ohio water systems
Ohio Water Regulations
Ohio EPA oversees drinking water programs and has implemented enhanced monitoring for harmful algal blooms. The state has invested in addressing Toledo's 2014 water crisis and improving early warning systems. Ohio participates in regional efforts to reduce agricultural runoff into Lake Erie.
Health Considerations
Lake Erie communities should be aware of seasonal algal bloom risks that can produce harmful toxins. Agricultural areas may have elevated atrazine and nitrate levels. Older urban areas face lead infrastructure concerns. Some industrial areas have specific contamination issues requiring attention.
Recommendations for Ohio Residents
Northern Ohio residents should stay informed about algal bloom conditions during summer and fall. Agricultural area residents should consider activated carbon filters for herbicide removal. Test for lead if you have older plumbing. Follow local advisories during algal bloom events and consider whole-house filtration in affected areas.
Frequently Asked Questions About Ohio Water Quality
Is Ohio's tap water safe to drink?
Most Ohio cities have tap water that meets EPA safety standards. With an average score of 95/100 across 5 cities we analyzed, Ohio generally has good water quality. However, water quality varies by location, so check your specific city's report.
What are the main water quality concerns in Ohio?
The most common water quality concerns in Ohio include harmful algal bloom toxins (lake erie), atrazine (agricultural herbicide), lead (aging infrastructure). These contaminants can come from natural sources, industrial activities, or aging infrastructure. Review your city's specific report to see which contaminants affect your area.
Should I use a water filter in Ohio?
Whether you need a water filter depends on your specific location and health concerns. Most Ohio cities have water that meets EPA standards, though some residents prefer additional filtration for taste or extra protection. Look for filters certified by NSF/ANSI to remove the specific contaminants found in your area.
Where can I find my Ohio water quality report?
Public water systems in Ohio are required to provide annual Consumer Confidence Reports (CCRs) to residents. You can usually find your report on your water utility's website, request it by phone, or access it through the EPA's database. Our city-level reports above summarize key information from these official sources.