Commercial laboratory

Cardinal Environmental Lab, LLC

Youngstown, OH · Mahoning County

Homeowner samplesYou can collect and drop off your own sample
Mail-in kitsNot listed, call to confirm
Walk-in drop offNot listed, call to confirm

Certification and services

Certified by
Ohio drinking water program
Certified for
Microbiological, Standard chemistry, Trace metals, Volatile organic compounds
Lab type
Commercial
Last verified
September 17, 2026

Listed on the official state certified laboratory list.

Tests this lab is certified for

Arsenic
Coliform Bacteria
Hardness
Iron and Manganese
Lead
Nitrate / Nitrite
Volatile Organic Compounds

Certified by Ohio EPA for public drinking water compliance analyses (Microbiological, Standard Chemistry, Trace Metals, Volatile Organic Compounds). Listed by OSU Extension (fact sheet AEX-315) as a lab that accepts water samples from private well owners. Second phone number: (800) 523-0347.

How to submit a sample

  1. 1
    Call or check the website for the right bottles

    Bacteria samples need a sterile bottle from the lab. Chemistry samples usually take a clean container the lab supplies.

  2. 2
    Collect from a cold tap before treatment

    Skip softeners and filters. Remove the aerator, run the water 3 to 5 minutes, then fill without touching the inside of the cap.

  3. 3
    Keep it cold and deliver within 24 hours

    Bacteria samples are time-sensitive. Use a cooler with ice packs and hand it in or ship it the same day.

  4. 4
    Read the report against the standards

    Compare results with EPA drinking water limits. If anything is over, our problem pages explain what it means and how to treat it.

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