Is Toledo tap water safe to drink?

Use caution filtration recommended

Toledo's water has significant quality concerns. We strongly recommend a certified water filter.

59/100
Purity Score
4
Issues Found
9.1 GPG
Hardness
Detected
PFAS

4 Issues Detected in Toledo

PFAS (Forever Chemicals) Detected

PFAS are man-made chemicals that do not break down and accumulate in the body.

PFAS details for Toledo

Moderately Hard Water (9.1 GPG)

Hardness above 7 GPG can cause minor scale buildup.

Hardness data for Toledo

Moderate Chlorine Level

Chlorine within EPA limits but may affect taste.

Chlorine info for Toledo

Arsenic Approaching Limit (0.4 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Toledo
Ohio

436,014,360,243,603 · Lake Erie Maumee River watershed

Toledo, OH Water Quality Report

Elevated Risk Updated March 2026 500,000 residents
59
Purity Score

Health Insights

  • 1
    At 9.1 GPG, Toledo's water qualifies as moderately hard. This can cause limescale in pipes and shorten appliance lifespan.
  • 2
    PFAS have been identified in Toledo's water at 3.1 parts per trillion. A reverse osmosis system is the most reliable home treatment.
  • 3
    Chlorine levels may affect the taste of Toledo's tap water. A carbon filter improves flavor.

Score

59 /100
Poor
"Good" threshold (70)

Toledo tap water is sourced from Lake Erie Maumee River watershed and treated by City of Toledo Division of Water. PFAS forever chemicals have been detected. Water hardness is hard at 9.1 GPG which may cause scale buildup. Overall purity score: 59/100 (Poor). Updated for 2026.

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Toledo Water FAQ

Is Toledo OH tap water safe to drink in 2026?
Toledo tap water meets EPA federal drinking water standards and scores 59/100 (Poor) on PurityMap for 2026. PFAS forever chemicals have been detected at 3.1 ppt. An NSF-certified filter is strongly recommended. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.
Does Toledo OH use chlorine or chloramine for disinfection?
Toledo uses chloramine as the primary disinfectant with a residual level of 1.9 ppm. Chloramine is harder to remove than free chlorine and requires a catalytic carbon or reverse osmosis filter. Standard Brita-style pitchers will NOT remove chloramine.
How hard is Toledo OH water and what is the TDS level?
Toledo water hardness is 9.1 grains per gallon (hard) with a TDS of 260 ppm (fair). This level causes noticeable scale buildup in water heaters kettles and dishwashers. A water softener is recommended to protect plumbing and reduce soap usage.
Has PFAS been found in Toledo OH drinking water?
Yes. PFAS forever chemicals have been detected in Toledo water at approximately 3.1 ppt according to EPA UCMR5 monitoring data. A reverse osmosis or NSF P473-certified filter is the most effective residential solution.
What is the best water filter for Toledo?
Based on Toledo's water profile, we recommend the Clearly Filtered Water Pitcher. Toledo: PFAS detected or elevated lead risk. Reverse osmosis is the only residential technology proven to reduce both below detection limits. TDS will also drop significantly.

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • City of Toledo Division of Water CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

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