Hayward, CA Water Quality (ZIP 94540)

PFAS, lead, and EPA-tested contaminants for ZIP 94540 in Hayward, CA.

Water delivered to 94540 comes from the same utility serving Hayward, CA. EPA UCMR5 and lead testing report at the water-system level, so the detailed results for 94540 are the results for Hayward as a whole.

See the full Hayward, CA water quality report →

Check your exact address

  1. Open the full Hayward report for PFAS levels, lead samples, and EPA violations.
  2. Enter your address at knowyourexposure.com for the most specific data we have.
  3. Choose a certified filter: an NSF/ANSI 58 reverse osmosis system removes 94-99% of PFAS, and an NSF-53 pitcher covers lead.