At a glance
- What it is certified to test
- 1 of the 9 common well tests on the IL list (see which)
- Price
- not published on the state list: ask the lab for a quote
- Turnaround
- not stated on the state list or the lab’s website: ask when you order
- Homeowner samples
- not stated: ask the lab
Lab facts
- Listed by
- Illinois (Illinois EPA - Environmental Laboratory Accreditation Program (IL ELAP, chemistry) and Illinois Department of Public Health (IDPH, water microbiology))
- Address
- 3712 Plainfield-Naperville Rd P.O. Box 3020, Naperville, IL 60566-7020 · Open in Google Maps
- Phone
- (630) 420-6128
- Public / homeowner samples
- Public samples: ask the labNot stated in the list.
- Left blank on the list
- The Illinois list (version Revision Date Thursday, December 4, 2025) gives no website for this lab.
Certification record
- Certificate ID
- IDPH Lab # 17566
- Issued by
- Illinois EPA - Environmental Laboratory Accreditation Program (IL ELAP, chemistry) and Illinois Department of Public Health (IDPH, water microbiology) (certification program)
- Expiry on the list
- Jan 2026 · Date on list has passed (288 days ago)
- List version
- Illinois Department of Public Health - Certified Water Microbiology Laboratories, version Revision Date Thursday, December 4, 2025
- We fetched it
- 15 Nov 2026 (file SHA-256 ff3504484187…) · open the state file
Tests on the state list
| Contaminant | On this state list |
|---|---|
| Coliform / E. coli | Named on the official list |
| Nitrate | Not named on this list |
| Arsenic | Not named on this list |
| Lead | Not named on this list |
| PFAS | Not named on this list |
| Uranium | Not named on this list |
| Radon (water) | Not named on this list |
| Manganese | Not named on this list |
| VOCs | Not named on this list |
Groups as written on the state list (3)
- Colilert 18 P/A: Total Coliform and E. coli (Chromogenic Substrate Method)
- Colilert 24 P/A: Total Coliform and E. coli (Chromogenic Substrate Method)
- Simplate: Heterotrophic Plate Count (MPN)
- Named on the official list The state list names this analyte (or a column for it) for this lab.
- Group-level certification Certified for a parent group (e.g. 'Inorganics') that includes this analyte. Confirm the specific test with the lab.
- Partial group certification The list marks the group as 'Partial'. Confirm this analyte with the lab.
- Subcontracted The lab sends this analyte to another accredited lab (MDH 'X*').
IDPH certifies this lab for these water microbiology methods: Colilert 18 P/A, Colilert 24 P/A, Simplate. IDPH lab type: Municipal. The microbiology expiry month printed on IDPH's list (Jan 2026) has passed (checked Nov 15, 2026). Check the lab's current status with IDPH.
Before you send a sample
Call the lab to confirm it's currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Bacteria samples have short holding times. Status can change between list updates. To check a status, contact the Illinois certification program.
Is this your lab?
Labs can ask for corrections through the agency that publishes their state list. Homeowner service, prices and turnaround above come only from the lab’s own website. To ask us to correct or remove this listing, write to us (how we handle listings).
Illinois Department of Public Health - Certified Water Microbiology Laboratories. Fetched 2026-11-15 (UTC). File SHA-256 ff3504484187…
Open the official source list