Is Tap Water Safe to Drink in Toledo?

The City of Toledo draws from the western basin of Lake Erie through the Collins Park Water Treatment Plant, which has been extensively upgraded since 2014 with ozone treatment, additional chemical barriers and continuous cyanotoxin monitoring.

Meets federal Safe Drinking Water Act contaminant limits. EPA records show one treatment-technique violation in March 2023. The August 2014 'do not drink' order — caused by microcystin toxin from a harmful algal bloom overwhelming the intake — has not been repeated; the plant now detects and treats bloom toxins with multiple redundant barriers.

• •Microcystin from Lake Erie's summer harmful algal blooms is the signature local threat; the 2014 event drove a massive upgrade program, and toxins are now monitored in real time and removed with ozone and carbon
• •Agricultural phosphorus runoff feeding the blooms remains an unsolved watershed problem, so vigilance is seasonal and permanent
• •Disinfection byproducts are monitored and within limits
• •Legacy lead service lines in older neighborhoods are inventoried under the EPA lead rule

Toledo's 2014 crisis was a national wake-up call on algal toxins, and its rebuilt treatment train now handles bloom seasons that still turn western Lake Erie green most summers — the problem persists in the lake, but the plant is built for it.

• •The city publishes a real-time water quality dashboard during bloom season
• •No home filter meaningfully adds to the plant's toxin barriers; standard use is fine
• •Summer taste-and-odor episodes are cosmetic and separate from toxin safety