privatewelldata / States / Michigan
Michigan well water testing
104 labs are listed on Michigan’s official certified-lab list; 15% of 1,077 sampled wells were above the arsenic limit across 49 counties. Updated 2026-10-18.
Official lab list for Michigan
Coverage map
Where the labs are
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Tests these labs are listed for
- Bacteria (coliform / E. coli): 66 of 104 labs
- Nitrate / nitrite: 49 of 104 labs
- Metals: 45 of 104 labs
- Lead: 38 of 104 labs
- Arsenic: 31 of 104 labs
- Organic chemicals / pesticides: 21 of 104 labs
- PFAS: 21 of 104 labs
- Radioactivity: 18 of 104 labs
Counted from the tests each lab is certified for on the official list. A lab may offer more; ask before you send a sample.
Well water results by county
| County | Arsenic > 10 µg/L | Nitrate > 10 mg/L |
|---|---|---|
| Alger County | 0% of 23 | 0% of 25 |
| Antrim County | – | 0% of 15 |
| Arenac County | 7% of 15 | – |
| Baraga County | 0% of 16 | 0% of 18 |
| Barry County | – | 0% of 21 |
| Bay County | 3% of 30 | 0% of 22 |
| Calhoun County | 0% of 17 | 0% of 10 |
| Chippewa County | 0% of 20 | 0% of 14 |
| Clinton County | 13% of 16 | 0% of 54 |
| Delta County | 0% of 15 | 0% of 35 |
| Dickinson County | – | 10% of 41 |
| Eaton County | 0% of 21 | 0% of 38 |
| Genesee County | 42% of 24 | 0% of 26 |
| Gladwin County | 6% of 17 | 0% of 15 |
| Gogebic County | 0% of 10 | 9% of 11 |
| Grand Traverse County | 3% of 36 | 1% of 217 |
| Gratiot County | 19% of 21 | 0% of 19 |
| Hillsdale County | 8% of 12 | 6% of 17 |
| Huron County | 50% of 70 | 0% of 46 |
| Ingham County | 4% of 78 | 0% of 115 |
| Ionia County | 0% of 15 | 6% of 18 |
| Iosco County | 15% of 13 | 2% of 62 |
| Iron County | – | 0% of 11 |
| Isabella County | 0% of 18 | 0% of 12 |
| Jackson County | 7% of 27 | 0% of 19 |
| Kalamazoo County | 2% of 53 | 11% of 64 |
| Kent County | 0% of 13 | 0% of 17 |
| Lapeer County | 76% of 33 | 0% of 19 |
| Leelanau County | – | 0% of 17 |
| Lenawee County | – | 0% of 17 |
| Livingston County | 7% of 42 | 8% of 53 |
| Marquette County | 3% of 34 | 1% of 124 |
| Menominee County | 0% of 14 | 0% of 14 |
| Midland County | 0% of 25 | 0% of 21 |
| Monroe County | 0% of 49 | 0% of 69 |
| Montcalm County | 0% of 11 | – |
| Muskegon County | 0% of 17 | 0% of 11 |
| Oakland County | 25% of 75 | 1% of 298 |
| Ottawa County | – | 0% of 10 |
| Roscommon County | – | 0% of 18 |
| Saginaw County | 7% of 43 | 0% of 39 |
| Sanilac County | 55% of 20 | – |
| Schoolcraft County | – | 0% of 12 |
| Shiawassee County | 62% of 13 | 0% of 12 |
| St. Clair County | 31% of 16 | 0% of 41 |
| Tuscola County | 24% of 21 | 0% of 13 |
| Van Buren County | 19% of 43 | 12% of 42 |
| Washtenaw County | 34% of 29 | 1% of 178 |
| Wayne County | 33% of 12 | – |
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Nitrate: 2% of 1,970 sampled wells statewide. All Michigan counties →
Labs on the Michigan EGLE list
- White Water Associates, Inc., AmasaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins-Buffalo, AmherstListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Ann Arbor Technical Services, Inc., Ann ArborListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- NSF International, Ann ArborListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Absolute Laboratories, Inc., Auburn HillsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Bay County Health Department, Bay CityListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Lake Township Water System, BridgmanListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Brighton Analytical, LLC, BrightonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins CEI, Inc, CaryListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Enviroappraisal Labs, CentrevilleListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- GEL Laboratories, LLC, CharlestonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- EMSL Analytical, Inc - Cinnaminson, CinnaminsonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Alliance Analytical Labs, Inc., CoopersvilleListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Alliance Technical Group, LLC - Akron, Cuyahoga FallsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- DeTour Village Waterworks, DeTour VillageListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Aqua Check LLC, DearbornListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins - St Louis, Earth CityListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Merit Laboratories, Inc., East LansingListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Laboratory - East Longmeadow, East LongmeadowListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Huron Shore Regional Utility Authority, East TawasListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Enthalpy Analytical LLC formerly Vista, El Dorado HillsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins Michigan (Farmington Hills), Farmington HillsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Midwest Analytical Services, Inc, FerndaleListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Genesee County Health Department, FlintListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- MPC Flint Community Lab, FlintListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Element Materials Technology - Ft Wayne, Ft WayneListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Northwest Michigan Community Health Agency, GaylordListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Suburban Laboratories, GenevaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Assurance Water Laboratory, GladwinListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Grand Ledge Water Lab, Grand LedgeListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- F & V Drinking Water Laboratory - Belding, Grand RapidsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Prein & Newhof, Grand RapidsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Scientific Methods, GrangerListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Services, Inc. - Greensburg, GreensburgListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Western Upper Peninsula Health Department, HancockListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- ALS Laboratory Group, Env Div - Holland, HollandListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Metiri Group-Holt Formerly Fibertec, HoltListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Isle Royale National Park, HoughtonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- ALS Environmental - Houston HRMS, HoustonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Water Tech, HowellListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Services - Indianapolis, IndianapolisListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- ADM Environmental LLC, JacksonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Kalamazoo County HSD Laboratory, KalamazooListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Kalamazoo Public Services Laboratory, KalamazooListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Services, LLC (Grand Rapids), KentwoodListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Summit Laboratory, KentwoodListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins Knoxville, KnoxvilleListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Element Materials Technology - Lafayette, LafayetteListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins Lancaster Laboratories Environment, LLC Pike, LancasterListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- EGLE Laboratory Services, LansingListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Lans. Brd. of Water & Light Envir. Services Lab, LansingListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Paragon Laboratories, Inc., LivoniaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- SGS- Livonia (formerly RTI ), LivoniaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Services LLC- Mansfield (Alpha), MansfieldListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Microbac Laboratories Inc - Marietta Division, MariettaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Services, Inc. - Minneapolis, MinneapolisListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins Eaton Analytical, Inc. - Monrovia, MonroviaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Ntl Ctr for Testing Water, Mt JulietListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Trace Analytical Laboratories, Inc., MuskegonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Muskegon Heights Filtration, Muskegon HeightsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Environmental Hazards Services, LLC, N. ChesterfieldListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- EMSL Analytical Inc. - New Hope, New HopeListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- LMAS Regional Laboratory, NewberryListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Frenchtown Charter Township, NewportListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Cornwell Engineering Group Laboratory, Newport NewsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Garrett Laboratories, Inc., NilesListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Microbac Laboratories Inc - Northbrook, NorthbrookListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- SGS North America Inc -Orlando, OrlandoListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Enviro Lab Services, Inc, OscodaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Founes Well Drilling & Environmental Laboratory, Paw PawListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Paw Paw Laboratory, Paw PawListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Pace Analytical Services LLC - Peoria, PeoriaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Oakland Co. Health Division Laboratory, PontiacListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- BEST Labs Inc, RichlandListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- OML Analytical, RockfordListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Rockford Water Lab, RockfordListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Accurate Analytical Testing, LLC, RomulusListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Raven Analytical Laboratory, RoscommonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Culligan Analytical Laboratory, RosemontListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Southeastern Oakland Co. Water Auth., Royal OakListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Saginaw County Health Department Laboratory, SaginawListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Eurofins Eaton Analytical Inc - South Bend, South BendListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Your Environmental Services LLC, South BendListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- New Age/Landmark, Inc., South HavenListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Environmental Support Services, South LyonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Saint Joseph WFP, St. JosephListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Blue Triton Brands - Mecosta, StanwoodListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- ACZ Laboratories, Inc, Steamboat SpringsListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Stephenson Water Dept, StephensonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Great Lakes Scientific, StevensvilleListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- KNL Environmental Testing LLC, TampaListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Grand Traverse Analytical, LLC, Traverse CityListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- SOS Analytical, Inc., Traverse CityListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Turquoise Environmental, Traverse CityListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- ALS Environmental - Valparaiso, ValparaisoListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Microbiological Associates, WayneListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Grand Rapids Lake Mich. Filt. Plant, West OliveListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Grand Rapids WFP - Oak Industrial Drive, West OliveListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Aqua Test Laboratories, White LakeListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- SGS North America Inc. - Wilmington NC, WilmingtonListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- Quantum Laboratories, Inc., WixomListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
- National Testing Laboratories, Ltd., YpsilantiListed in Michigan EGLE’s certified lab list. See the official list → (checked 2026-10-17)
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See all 2 Michigan lab listings →
How to choose a lab
- Pick a lab on the official list above that is certified for each test you need (bacteria and chemistry are often separate certifications).
- Ask for the lab’s own sample bottles and instructions; bacteria samples usually must reach the lab within 24–30 hours.
- Compare prices for a basic package (bacteria, nitrate, pH/TDS) and add arsenic or other metals where local data shows a risk.
- Be wary of free in-home tests from treatment-system sellers — see our salesperson checklist.
Questions
Where can I get my well water tested in Michigan?
Use a lab on Michigan’s official certified-lab list. We count 104 listed labs (excluding those marked as serving public water systems only), most in Traverse City, Romulus, Ypsilanti. Confirm the lab is certified for the exact tests you need before you send a sample.
What should I test my well for in Michigan?
Test every year for bacteria (total coliform and E. coli), nitrate, pH and total dissolved solids (CDC). In Michigan, 15% of sampled wells with arsenic data were above the EPA limit, so include arsenic. Use our test helper for a list that fits your home.
Is there well water data for my county in Michigan?
Yes for 49 counties: we show the share of sampled wells above the EPA arsenic and nitrate limits, from the Water Quality Portal (USGS/EPA). These are monitoring wells as well as private wells, so test your own well.