Daily Laboratories
Homeowner samples
- Coliform Bacteria
Listed on the official state certified laboratory list.
Certified by the Illinois Department of Public Health for drinking water microbiology (IDPH lab 17553; certified list revised December 4, 2025). Accredited by the Illinois EPA Environmental Laboratory Accreditation Program for chemical analysis of drinking water (IL ELAP lab code 100230; primary lab list of December 9, 2025). Runs both the bacteria test and the chemistry panel (nitrate, arsenic, lead, iron, manganese, hardness) that IDPH recommends for private wells; call for bottles, drop-off hours and pricing.
Bacteria samples need a sterile bottle from the lab. Chemistry samples usually take a clean container the lab supplies.
Skip softeners and filters. Remove the aerator, run the water 3 to 5 minutes, then fill without touching the inside of the cap.
Bacteria samples are time-sensitive. Use a cooler with ice packs and hand it in or ship it the same day.
Compare results with EPA drinking water limits. If anything is over, our problem pages explain what it means and how to treat it.
Homeowner samples
Homeowner samples