Grand Traverse Analytical, LLC

At a glance

What it is certified to test

4 of the 9 common well tests on the MI 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

“Most drinking water analysis is 1-2 days” (lab’s website)

Homeowner samples

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

Lab facts

Listed by

Michigan (Michigan Department of Environment, Great Lakes, and Energy (EGLE) - Laboratory Certification Program)

Address

830 Robinwood Court, Traverse City, MI 49686 · Open in Google Maps

Phone

(231) 929-0905

Website

gtanalytical.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 in the list.

Certification record

Certificate ID

9968

Issued by

Michigan Department of Environment, Great Lakes, and Energy (EGLE) - Laboratory Certification Program (certification program)

List version

EGLE - State of Michigan Certified Laboratories: Chemistry + EGLE - State of Michigan Certified Laboratories: Microbiological + EGLE - State of Michigan Certified Laboratories: Lead and Copper, version SOM Certified Labs - Chemistry 3/11/2026 (chemistry, microbiological, lead and copper lists)

We fetched it

15 Nov 2026 (file SHA-256 67116a31f5aa…) · 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*').

EGLE lists 7 drinking-water analytes this lab is certified for (analyte-level list). On EGLE's chemistry, microbiological and lead and copper lists.

Homeowner service and turnaround (lab’s own website)

• Takes homeowner samples: yes. The lab’s site says: “Yes we do residential wells for bacteria/nitrate/nitrite/and metals.” source
• Who collects: You collect the sample with the lab's bottles. source
• Turnaround (as printed): Most drinking water analysis is 1-2 days 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.

Nearest labs that take homeowner samples

1 other certified lab that takes homeowner samples is within 25 miles of this lab. Distances are straight-line from the address on the state list (approx. = ZIP-code centre). “Takes homeowner samples” comes from a state list column or the lab’s own website, as named.

Price and turnaround as printed on each lab’s own website and checked by a second reader; – = not published or not read yet.

Around this lab: Grand Traverse County, MI

• Private wells: about 50,173 people, 55% of Grand Traverse County’s 91,636 residents (USGS, 2015); rank 14 of 83 counties in Michigan by people on wells.
• At house sale: Grand Traverse County Health Department has a septic system and well rule (Grand Traverse County Regulation for the Evaluation of Onsite Water and Sewage Disposal Systems at Time of Property Transfer (eff. 2026-01-01)). What it requires

• EPA radon zone (indoor air): Zone 3: low potential (average indoor radon may be less than 2 pCi/L). EPA says the zone map should not decide whether one home needs testing.
• Arsenic above 10 µg/L (USGS model): about 3,678 private-well users (95% range 2,309 to 5,654; 2010 base), rank 19 of 82 in the state. A screening estimate, not a measurement of any well.
• Older homes (Census ACS 2020–2024): 42% of 47,003 housing units were built before 1980, below the state share of 62%. Homes built before 1986 are more likely to have lead solder or fittings, so test tap water for lead there.
• PFAS in public water nearby (public supply, not your well): 4 public systems serving this county reported EPA UCMR 5 results; 0 had a PFOA or PFOS sample at or above 4.0 ng/L.

County figures describe where the lab is, not the lab. Sources: USGS 2015 water use and 2017 arsenic estimates, EPA radon zones, Census ACS table B25034 (2020–2024), EPA UCMR 5 (2023–2026); details and links on the sources page.

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 Michigan 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).