Garrett laboratories

At a glance

What it is certified to test

1 of the 9 common well tests on the IN list (see which)

Price

no per-test price printed on the lab’s website when we read it (14 Nov 2026): ask for a quote

Turnaround

not stated on the state list or the lab’s website: ask when you order

Homeowner samples

yes (lab’s own website, read 14 Nov 2026)

Lab facts

Listed by

Indiana (Indiana Department of Health (IDOH) - IDOH Laboratories, Drinking Water Laboratory Certification)

Address

408 N. 3rd Street, Niles, MI 49120 · Open in Google Maps

Phone

(180) 033-6320

Website

www.garrettlabs.com

Not on the state list: found and checked by us, 14 Nov 2026

Public / homeowner samples

Homeowner samples: yes (lab’s website)

Not stated. IDOH's out-of-state table marks labs that do not accept samples from the public; this lab is not marked, but the table does not say that it accepts them.

Location note

Lab is in MI, certified by Indiana (often used as a mail-in lab).

Certification record

Certificate ID

M-MI-04

Issued by

Indiana Department of Health (IDOH) - IDOH Laboratories, Drinking Water Laboratory Certification (certification program)

List version

IDOH - Find a Certified Out-of-State Drinking Water Laboratory (program page table), version page as fetched 2026-11-07 (no date printed)

We fetched it

7 Nov 2026 (file SHA-256 5ed03c235c22…) · open the state file

Tests on the state list

• 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*').

IDOH's out-of-state table lists Lab ID M-MI-04 with certified analytes: Total coliform/E.coli, Heterotrophic plate count, Enumeration of E.coli. No expiry date is printed.

Also certified by other states

Same business (same street address and ZIP) on another state's official list. Each state certifies separately, so each listing keeps its own source.

• Michigan · 8003 · Coliform / E. coli, Nitrate · Homeowner samples: yes (lab’s website)
  EGLE - State of Michigan Certified Laboratories: Chemistry + EGLE - State of Michigan Certified Laboratories: Microbiological (SOM Certified Labs - Chemistry 3/11/2026 (chemistry, microbiological lists))

Homeowner service and turnaround (lab’s own website)

• Takes homeowner samples: yes. The lab’s site says: “customized water testing to meet the unique needs of all of our customers from residential homeowners, real-estate agents and brokers, commercial installations” source
• Prices: no price printed on the lab’s website when we read it on 14 Nov 2026: ask for a quote.

From the lab’s own website, read 14 Nov 2026 and re-read by a second checker; next check due by 12 Feb 2027. Certification fields come from the state list only.

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 Indiana 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).