State laboratory

IDPH Division of Laboratories (Springfield)

Springfield, IL · Sangamon 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

State certified
Certification number
IDPH
Certified by
Illinois drinking water program
Certified for
Microbiology
Lab type
State
Last verified
September 30, 2026

Listed on the official state certified laboratory list.

Tests this lab is certified for

Coliform Bacteria

The IDPH Division of Laboratories runs the bacteria test for private wells sampled through local health departments: the homeowner gets the bottle from the county health department, which submits it to the state lab, so start with your county health department rather than the lab.

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.

Other certified labs nearby