Print this page
Text resize increase font size decrease font size
lab1City of Porterville Laboratory
The City of Porterville Laboratory provides analytical services to various City departments and surrounding communities for drinking water, wastewater, and industrial wastewater testing.

Certified by State Water Resources Control Board Environmental Laboratory Accreditation Program (ELAP) Certificate #1653.

1265 W. Grand Avenue
Porterville, CA 93257
Phone 559-782-7510

Analytical Services:

  • Bacteriological testing:
    • Total coliform and E-coli in drinking water.
    • Total coliform, fecal coliform, E-coli in source water.
  • Nitrate/Nitrite testing
  • General Minerals
  • Trace Metals
Laboratory Hours for Receiving Samples:

  • Bacteriological Samples
    • Monday – Thursday 8:00 am to 4:00 pm
  • All other samples
    • Monday – Thursday 8:00 am to 4:00 pm;
    • Friday 8:00 am to 12:00 Noon



Sign Up For Alerts

Learn More