Cleveland Water Quality at a Glance
some concerns
Is Cleveland Water Safe to Drink?
Generally Yes — Cleveland’s water meets all federal standards and PFAS levels are currently below detection limits. However, the city faces elevated disinfection byproducts including trihalomethanes and haloacetic acids from chlorine treatment. Chromium-6 and radium are also detected above health guidelines. Cleveland Water serves over 1.4 million people across 80 communities. For comparison, see how other Ohio communities fare, including Columbus, Cincinnati, and Toledo.
⚠️ Key Concerns for Cleveland Residents
- Disinfection Byproducts: Trihalomethanes (159x above guideline) and haloacetic acids (141x–342x above guidelines)
- Chromium-6: Cancer-causing hexavalent chromium detected at 5.1x above health guideline
- Radium: Radioactive contaminant at 15x above health guideline, naturally occurring in groundwater
- Chlorine Treatment: Multiple disinfection byproducts from necessary water treatment processes
Read the full report below for detailed analysis, contaminant data, and actionable recommendations for Cleveland residents.
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Cleveland, Ohio — Water Quality Report 2026: PFAS Testing, Infrastructure Concerns & Safety Across Your City
Cleveland’s Division of Water operates one of the largest water systems in the Midwest, providing service to approximately 1.4 million residents across Cleveland and 80 surrounding communities. Established in 1856, the system encompasses over 5,375 miles of water mains, multiple storage facilities, and four water treatment plants that deliver an average of 230 million gallons daily to the greater Cleveland metropolitan area.
Cleveland draws its drinking water exclusively from Lake Erie — one of the Great Lakes — which contains about 20% of the world’s fresh surface water. The city maintains four intake cribs located 3–5 miles offshore and 40–60 feet below the surface to access cleaner, deeper water. Cleveland’s water system has transformed significantly in recent decades, with over $1.6 billion invested in treatment plant modernisation, distribution system upgrades, and enhanced monitoring technologies to address both legacy issues and emerging water quality concerns.
Cleveland Water Quality: Current Status (2025–2026)
Latest Testing Results
- Lead Levels: The most recent testing period shows 90th percentile lead levels of 2.1 parts per billion (ppb), significantly below the EPA action level of 15 ppb and demonstrating the effectiveness of Cleveland’s orthophosphate corrosion control program, which has been in place since 1997.
- Testing Scope: Cleveland conducts approximately 200,000 water quality tests annually throughout the distribution system, including continuous monitoring at treatment plants and enhanced sampling at residential properties across all service areas.
- Compliance Status: Cleveland’s water consistently meets or exceeds all federal and state drinking water standards, maintaining full compliance with EPA and Ohio EPA regulations for all monitored contaminants since 1997.
Lake Erie Source Water
- Strategic Intake Locations: Four intake cribs positioned 3–5 miles offshore in Lake Erie at depths of 40–60 feet provide access to higher quality source water, avoiding near-shore contaminants and runoff zones.
- Real-time Monitoring: Advanced buoy systems and water quality sensors provide continuous data on lake conditions, enabling rapid responses to changing water quality events including seasonal algal blooms.
- Source Water Protection: Cleveland actively participates in regional watershed protection programmes and the Lake Erie Collaborative to address agricultural runoff, algal bloom prevention, and industrial discharge management.
Advanced Treatment Technology
- Multi-barrier Approach: All four water treatment plants (Nottingham, Baldwin, Crown, and Morgan) employ comprehensive treatment processes including screening, flocculation, sedimentation, filtration, and disinfection.
- Granular Activated Carbon: Specialised carbon filtration systems target organic compounds, pharmaceuticals, and taste/odour-causing substances, particularly during seasonal algal events on Lake Erie.
- Corrosion Control: Industry-leading orthophosphate treatment implemented since 1997 creates a protective coating inside pipes, significantly reducing lead and copper leaching from service lines and home plumbing. Residents in older homes should also consider a certified home water filter for additional protection.
Infrastructure Modernisation
- Pipeline Replacement: Systematic replacement of approximately 80 miles of ageing water mains annually, with priority given to areas with high break rates and critical service zones.
- Lead Service Line Initiative: Comprehensive mapping and replacement programme targeting the estimated 178,000 lead service lines in the system, launched in 2023 with Bipartisan Infrastructure Law funding and prioritising disadvantaged communities.
- Digital Water Management: Integrated SCADA systems and advanced metering infrastructure provide real-time monitoring of water quality parameters and early detection of potential distribution system issues.
Customer Protection Initiatives
Cleveland Water offers comprehensive customer programmes including complimentary home water testing through the Lead Inquiry Line at (216) 664-2882, point-of-use filter distribution through the Healthy Homes programme, and water affordability programmes for low-income residents. The Water First for a Healthy Cleveland initiative provides educational resources about water quality and conservation, while the Lead Safe Cleveland programme coordinates interagency efforts on lead hazard reduction. Cleveland’s environmental justice framework directs infrastructure improvements toward historically disadvantaged neighbourhoods with ageing water infrastructure. You can also check our live U.S. boil water notice tracker for any active alerts affecting the Cleveland area. Through these initiatives and continued system modernisation, Cleveland maintains its commitment to delivering safe, high-quality drinking water to residents throughout Northeast Ohio.
Recommendations for Cleveland Residents
Request Free Water Testing
Contact Cleveland Water at (216) 664-2882 or visit clevelandwater.com/testing to schedule a free lead and water quality test. This is particularly recommended for homes built before 1954 or with known lead service lines.
Lead Service Line Replacement
Check your service line material using Cleveland Water’s online map at clevelandwater.com/lead or call (216) 664-2444. The city’s proactive replacement programme provides free replacement of both city and customer-owned lead lines in prioritised areas — see our water quality guide for more on lead risk.
Use Certified Filters
If you have lead plumbing components, use NSF-certified filters (Standard 53 for lead reduction) for drinking and cooking water. Cleveland Water provides free filters to qualifying households. See our water filter guide for recommended options.
Flush Your Water
If water has been standing in pipes for 6+ hours, run cold water for 2–3 minutes before using it for drinking or cooking. This is especially important in older homes with lead service lines or plumbing. Always use cold water for consumption — hot water leaches more contaminants from pipes.
Report Water Issues
Call the 24-hour Water Quality Line at (216) 664-2639 for any water quality concerns, pressure problems, or water main breaks. You can also report issues through the Cleveland Water mobile app or online customer portal. For active boil water notices, check our live U.S. boil water tracker.
Quality News About Your Water
Get the comprehensive water quality news coverage you need with our dedicated US Water News Service. From coast to coast, we deliver in-depth reporting and expert analysis on PFAS contamination, EPA regulatory changes, infrastructure developments, and emerging water safety issues affecting communities nationwide. While mainstream media only covers the biggest stories, we provide the detailed, ongoing coverage that helps you understand the full scope of America’s water challenges.
What’s actually in your tap water? Enter your ZIP code for a full breakdown of contaminants detected in your local supply
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Frequently Asked Questions
Is Cleveland’s tap water safe to drink in 2026?
Yes, Cleveland’s tap water meets or exceeds all federal and state drinking water standards. The city draws water from Lake Erie and uses advanced treatment processes including multi-stage filtration, disinfection, and corrosion control.
Lead can be a concern in older homes with lead service lines or plumbing installed before the 1986 ban. Recent testing shows 90th percentile lead levels at 2.1 ppb, well below the EPA action level of 15 ppb, due to Cleveland’s effective orthophosphate treatment programme in place since 1997. The city offers free water testing and maintains robust monitoring throughout the distribution system. For added protection, residents in older homes can use certified filters and follow flushing recommendations. You can also see our Ohio state water quality overview for broader context.
How do I check if I have a lead service line in Cleveland?
Cleveland Water maintains a comprehensive service line inventory. To determine your service line material:
1. Check the service line where water enters your home (usually in the basement or crawlspace). Lead pipes appear dull grey, feel soft when scratched with a coin, and do not attract magnets.
2. Call Cleveland Water at (216) 664-2444 for their records on your service line.
3. Use the online service line map at clevelandwater.com/lead.
4. Request a free inspection from Cleveland Water.
Homes built before 1954 in Cleveland are most likely to have lead service lines. The city’s replacement programme prioritises high-risk areas and offers assistance for qualified homeowners. See our water quality resources page for more guidance on lead in drinking water.
How does Cleveland address seasonal algal blooms in Lake Erie?
Cleveland Water employs a multi-faceted approach to manage Lake Erie’s seasonal algal blooms:
• Strategic water intakes: Four intake cribs located 3–5 miles offshore and 40–60 feet deep avoid near-shore areas where blooms typically concentrate.
• Early warning system: Advanced buoy network and satellite monitoring provide real-time bloom detection.
• Specialised treatment: Powdered activated carbon and potassium permanganate treatments target algal toxins.
• Enhanced filtration: Granular activated carbon filters remove organic compounds and toxins.
• Continuous monitoring: Advanced analytical equipment tests for microcystin and other cyanotoxins.
Since implementing these measures in 2014, Cleveland has maintained safe drinking water even during severe bloom events. The city also participates in regional efforts to reduce agricultural runoff and phosphorus loading into Lake Erie. Check our boil water notice tracker for any active advisories in the region.
What assistance programmes are available for Cleveland water customers?
Cleveland Water offers several assistance programmes:
Affordability Programmes:
• Water Affordability Programme: Income-based discounts for qualified residents
• Homestead Discount: Reduced rates for senior citizens and disabled customers
• Water/Sewer Crisis Assistance: One-time emergency assistance for qualifying households
Service Programmes:
• Lead Service Line Replacement: Free replacement for both city and customer-owned lead lines in prioritised areas through the BIL-funded programme
• Healthy Homes Initiative: Free water filters and education for at-risk households
• Home Plumbing Repair Programme: Assistance for low-income homeowners with internal plumbing issues
• Summer Sprinkler Programme: Seasonal billing adjustments for irrigation users
Application information is available at clevelandwater.com/customer-assistance or by calling (216) 664-3130. For more on water safety across Ohio, see our pages on Columbus, Cincinnati, and Toledo.
Contaminants of Concern
Lead
Source: Lead service lines, lead solder, and brass fixtures in homes built before 1986. Cleveland has approximately 178,000 estimated lead service lines still in use across the distribution system.
Health Effects: Developmental impacts in children, cognitive effects, kidney problems, reproductive issues, and cardiovascular effects in adults. There is no safe level of lead exposure for children.
Current Levels: 90th percentile value of 2.1 ppb (most recent testing period), well below EPA’s action level of 15 ppb. EPA Limit: Action level 15 ppb; health experts recognise no level of lead is safe. Consider a certified NSF-53 filter if your home has lead plumbing.
Microcystin
Source: Toxins produced by blue-green algae (cyanobacteria) during harmful algal blooms in Lake Erie, typically occurring in late summer and early autumn.
Health Effects: Liver damage, gastrointestinal illness, skin irritation, and potential neurological effects with exposure to high concentrations.
Current Status: Consistently non-detectable in treated water. Cleveland’s multi-barrier treatment approach effectively removes these toxins even during bloom events. EPA Limit: 0.3 μg/L for children under 6; 1.6 μg/L for adults. During bloom season, monitor our live boil water tracker for any precautionary advisories.
Please read – our information
The information presented on cleanairandwater.net is compiled from official water quality reports, trusted news sources, government websites, and public health resources. While we strive for accuracy and thoroughness in our presentations, we are not scientists, engineers, or qualified water quality professionals.
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