0 named for arsenic 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 arsenic in Tennessee
33 labs on Tennessee's official drinking-water lab list are certified to test for arsenic. 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 arsenic
| Lab | Location | Arsenic certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| AIRL, Inc. | Cleveland, TN | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 2/24/2029 |
| ALS Environmental (Cincinnati) | Cincinnati, OH | Certified for a group that includes arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: confirm with the lab | Public samples: ask the lab | 12/31/2026 |
| EMSL Analytical, Inc. - NJ | Cinnaminson, NJ | Certified for a group that includes arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: confirm with the lab | Public samples: ask the lab | 9/4/2029 |
| Eurofins Knoxville | Knoxville, TN | Certified for a group that includes arsenic: 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 arsenic: 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 arsenic: confirm with the lab | Public samples: ask the lab | 8/11/2028 |
| Eurofins Orlando FL | Altamonte Springs, FL | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Eurofins Pensacola FL | Pensacola, FL | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Eurofins Pomona, CA | Pomona, CA | Certified for a group that includes arsenic: 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 arsenic: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| GEL Laboratories, LLC | Charleston, SC | Certified for a group that includes arsenic: 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 arsenic: confirm with the lab | Public samples: ask the lab | 4/21/2028 |
| Microbac - New England Division | Dayville, CT | Certified for a group that includes arsenic: 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 arsenic: confirm with the lab | Public samples: ask the lab | 6/30/2027 |
| Mineral Labs-KY | Salyersville, KY | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 12/31/2026 |
| National Testing Laboratories, Ltd. | Ypsilanti, MI | Certified for a group that includes arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic: 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 arsenic in Tennessee
Arsenic is invisible, tasteless and mostly natural, and it comes in two forms that respond very differently to treatment. Read our arsenic explainer.
USGS estimates that the most private-well users with arsenic above 10 µg/L, EPA's limit for public water, live in Hawkins County, Sevier County and Fayette County (about 766 people in Hawkins County, 2010 base year). USGS describes this kind of estimate as useful "for broad screening of the population at risk", so it says nothing certain about any one well. [1]
Show the numbers
| Item | Value | Note |
|---|---|---|
| Hawkins County | 766 people (2010 base year) | |
| Sevier County | 401 people (2010 base year) | |
| Fayette County | 361 people (2010 base year) | |
| Grainger County | 312 people (2010 base year) | |
| Henry County | 225 people (2010 base year) | |
| Jefferson County | 214 people (2010 base year) |
USGS model estimate for broad screening, not a measurement of any well. Only a test tells you about your own well. Source: USGS, Estimated county level domestic well population with arsenic greater than 10 micrograms per liter (Ayotte, Medalie and Qi, 2017), accessed 2026-11-01.
About 594,482 people in Tennessee used private wells in 2015, by the USGS estimate of people on domestic self-supplied water. [2] 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
- USGS, Estimated county level domestic well population with arsenic greater than 10 micrograms per liter (Ayotte, Medalie and Qi, 2017)
- 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