NTNational Testing Laboratories (WaterCheck)
Mail-in lab for city and well water. NELAC accredited (E87753), ISO/IEC 17025, and state certified in 34 states plus Guam and Puerto Rico. Kits ship to your door; you send the sample back by overnight delivery.
State-accredited labDrinking waterMail-in kitsShips nationwideBacteria testingChemical testing
| Address | 556 South Mansfield St, Ypsilanti, US, 48197 |
|---|---|
| Phone | (800) 458-3330 |
| Website | watercheck.com |
| Prices | Single tests from $75; well and city packages $165 to $440 |
| Service area | AL;AZ;CA;CO;CT;FL;GA;HI;ID;IL;IN;KS;KY;LA;ME;MD;MA;MI;MS;MO;NH;NJ;NM;NY;NV;NC;PA;RI;TN;TX;VT;VA;WV;WI |
| Directions | Open in Google Maps |
| Source | watercheck.com certifications page (checked 2026-10-28) |
Accreditation and services
- State-accredited labAccredited by the state environmental agency for environmental testing.
- Drinking waterAccredited for the drinking water matrix. Confirm the specific tests you need.
- Mail-in kitsOffers sample kits you can collect at home and mail or drop off.
- Ships nationwideMails a sample kit anywhere in the US. You collect at home and ship it back.
- Bacteria testingCertified to test for coliform bacteria and E. coli, the yearly well test.
- Chemical testingCertified for chemicals such as nitrates, metals, lead or other contaminants.
Accreditation covers specific methods and contaminants and must be renewed. Ask the lab to confirm it's currently certified for the tests you need.
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