0 named for nitrate itself on the list.
Per the state list or a state web page. Call to confirm.
Located outside Tennessee but on its list.
USGS estimate for Tennessee.
How many labs test for nitrate in Tennessee
33 labs on Tennessee's official drinking-water lab list are certified to test for nitrate. Of these, 33 hold a group certification that includes it. The Tennessee list does not say which labs take samples from homeowners, so call a lab before you send one. 24 are located outside Tennessee.
The list is published by the Tennessee Department of Environment and Conservation (TDEC), Division of Water Resources - Laboratory Certification Program. List versions on file: 10/2/2026 (page footers 10/06/2026); 10/2/2026 (page footers 10/06/2026); As of October 2, 2026 (PDF title; page footers 10/06/2026). Fetched 2026-11-15 (UTC).
Tennessee labs certified for nitrate
| Lab | Location | Nitrate certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| AIRL, Inc. | Cleveland, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 2/24/2029 |
| ALS Environmental (Cincinnati) | Cincinnati, OH | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 4/1/2026 Date on list has passed |
| ALS Lab Group, Environmental - Houston | Houston, TX | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 4/30/2027 |
| BNH AEDC Chemistry Lab (Arnold AFB) | Arnold Air Force Base, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 12/10/2028 |
| DOE Y-12 CNS National Security Complex | Oak Ridge, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 5/21/2027 |
| Element Materials Tech - Ft. Wayne IN | Ft. Wayne, IN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 12/31/2026 |
| Element Materials Tech - Lafayette LA, LLC | Lafayette, LA | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 12/31/2026 |
| EMSL Analytical, Inc. - NJ | Cinnaminson, NJ | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Environmental Hazards Services (EHS) Labs | Richmond, VA | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 9/30/2027 |
| Eurofins Built Environment Testing East, LLC - Cary, NC | Cary, NC | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 4/1/2027 |
| Eurofins DW&WW Central, LLC (former Alloway Lab, Marion, OH) | Marion, OH | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 3/31/2027 |
| Eurofins DW&WW Central, LLC - Geneva, IL | Geneva, IL | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 10/31/2026 Date on list has passed |
| Eurofins Jackson (former Waypoint LLC) | Jackson, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 9/4/2029 |
| Eurofins Knoxville | Knoxville, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/4/2028 |
| Eurofins Lancaster Laboratories Environment Testing, LLC | Lancaster, PA | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 1/31/2027 |
| Eurofins Memphis (former Waypoint LLC) | Memphis, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 8/11/2028 |
| Eurofins Orlando FL | Altamonte Springs, FL | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Eurofins Pensacola FL | Pensacola, FL | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Eurofins Pomona, CA | Pomona, CA | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/18/2027 |
| Eurofins South Bend, IN | South Bend, IN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| GEL Laboratories, LLC | Charleston, SC | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 10/31/2026 Date on list has passed |
| Microbac - Knoxville Division | Maryville, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 4/21/2028 |
| Microbac - New England Division | Dayville, CT | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 1/15/2027 |
| Microbac Labs Inc. - Ohio Division | Marietta, OH | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Mineral Labs-KY | Salyersville, KY | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 12/31/2026 |
| National Testing Laboratories, Ltd. | Ypsilanti, MI | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Pace Analytical National Center for Testing&Evaluation | Mount Juliet, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 3/12/2027 (microbiological); 12/9/2027 (chemical) |
| Pace Analytical Services, Inc. - FL | Ormond Beach, FL | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Pace Analytical Services, LLC - Madisonville, KY | Madisonville, KY | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 12/31/2026 |
| Pace Analytical Services, LLC - MN | Minneapolis, MN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 12/31/2026 |
| Tennessee Tech University Water Center | Cookeville, TN | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab | 10/5/2026 (microbiological); 11/28/2026 (chemical) Date on list has passed |
| American Water Central Laboratory (Belleville IL) | Belleville, IL | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | 10/31/2026 Date on list has passed |
| Jacobs - Fort Campbell Water Plant | Fort Campbell, KY | Certified for a group that includes nitrate: confirm with the lab | Public samples: ask the lab Looks like a utility or municipal lab, judging by the name (our label, not the state list) | 9/30/2028 |
How the Tennessee list marks public samples (whole list). Not stated in the list.
Before you send a sample, call the lab to confirm it is currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Status can change between list updates.
Why test for nitrate in Tennessee
Nitrate has no taste or smell, and a lab report can state the same water in two units that differ by a factor of 4.43. Read our nitrate explainer.
EPA advises private-well owners to test every year for total coliform bacteria, nitrates, total dissolved solids and pH. [1]
Tennessee guidance that mentions nitrate:
- The Tennessee Department of Health suggests bacteria every year (multiple samples), chemicals such as nitrate and metals every two years, VOCs every few years if you are near industry, and radon if your home has elevated indoor radon. [2]
About 594,482 people in Tennessee used private wells in 2015, by the USGS estimate of people on domestic self-supplied water. [3] Federal limits are written for public water systems, not private wells, so testing is up to the owner.
For tests that depend on your home (farms nearby, old plumbing, a new baby), use the which-tests checklist. When results arrive, check your numbers against EPA's limits. State guidance, county data and every lab: Tennessee.
Other tests in Tennessee
- U.S. EPA, Protect your home's water
- Tennessee Department of Health, Environmental Epidemiology Program: Private Water Supply (page last updated Jun 24, 2026)
- USGS, Estimated use of water in the United States, county-level data for 2015 (Dieter et al., ver. 2.0, 2018)
- TDEC Division of Water Resources - Commercial Laboratories Certified for Drinking Water Analysis (official list)
- TDEC Division of Water Resources - Commercial Laboratories Certified for Drinking Water Analysis + TDEC Division of Water Resources - Microbiological Laboratories Certified for Drinking Water Analyses (official list)
TDEC Division of Water Resources - Commercial Laboratories Certified for Drinking Water Analysis + TDEC Division of Water Resources - Microbiological Laboratories Certified for Drinking Water Analyses.
Official source