0 named for arsenic itself on the list.
Per the state list or a state web page. Call to confirm.
Located outside Vermont but on its list.
USGS estimate for Vermont.
How many labs test for arsenic in Vermont
24 labs on Vermont's official drinking-water lab list are certified to test for arsenic. Of these, 10 hold a group certification that includes it and 14 have a partial group certification. 14 of them are marked as taking samples from the public. They are listed first. 22 are located outside Vermont.
The list is published by the Vermont Department of Health - Public Health Laboratory. List version on file: September 28, 2026. Fetched 2026-11-15 (UTC).
Vermont labs certified for arsenic
Marked as taking public samples (14)
| Lab | Location | Arsenic certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| EMSL Analytical, Inc. | Cinnaminson, NJ | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 10/3/2027 |
| Endyne Inc. | Plattsburgh, NY | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 3/1/2027 |
| Endyne, Inc. | Lebanon, NH | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 2/15/2027 |
| Endyne, Inc. | Williston, VT | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 2/22/2027 |
| Eurofins Concord | Concord, NH | Certified for a group that includes arsenic: confirm with the lab | Public samples: yes (per state) | 11/16/2026 |
| Eurofins Derry | Derry, NH | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 5/8/2027 |
| Eurofins Lancaster Laboratories Environment Testing, LLC | Lancaster, PA | Certified for a group that includes arsenic: confirm with the lab | Public samples: yes (per state) | 10/28/2026 Date on list has passed |
| National Testing Laboratories, Ltd. | Ypsilanti, MI | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 11/30/2026 |
| Nelson Analytical | Manchester, NH | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 5/22/2027 |
| Pace Analytical Services LLC - Mansfield | Mansfield, MA | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 9/15/2027 |
| Pace Analytical Services, LLC - East Longmeadow | East Longmeadow, MA | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 6/15/2027 |
| Pace Analytical Services, LLC - Melville, NY | Melville, NY | Certified for a group that includes arsenic: confirm with the lab | Public samples: yes (per state) | 2/10/2027 |
| Seacoast Analytical Services | Lee, NH | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 2/25/2027 |
| Vermont Dept. of Health Laboratory | Colchester, VT | Partial group certification: confirm arsenic with the lab | Public samples: yes (per state) | 12/25/2026 |
Other labs on the list (10)
| Lab | Location | Arsenic certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| Culligan Analytical Lab | Rosemont, IL | Partial group certification: confirm arsenic with the lab | Public samples: ask the lab | 1/15/2027 |
| Eurofins Pomona | Pomona, CA | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 1/22/2027 |
| Eurofins South Bend | South Bend, IN | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 11/15/2026 |
| NSF International | Ann Arbor, MI | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 4/15/2027 |
| Pace Analytical National Center for Testing & Innovation | Mt. Juliet, TN | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 4/1/2027 |
| Pace Analytical Services LLC - Westborough, MA | Westborough, MA | Partial group certification: confirm arsenic with the lab | Public samples: ask the lab | 1/1/2027 |
| Pace Analytical Services, LLC - Minneapolis MN | Minneapolis, MN | Partial group certification: confirm arsenic with the lab | Public samples: ask the lab | 5/1/2027 |
| Pace Analytical Services, LLC - Ormond Beach FL | Ormond Beach, FL | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 10/15/2027 |
| Phoenix Environmental Laboratory, Inc. | Manchester, CT | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 10/28/2026 Date on list has passed |
| SGS North America Inc. - Dayton | Dayton, NJ | Certified for a group that includes arsenic: confirm with the lab | Public samples: ask the lab | 1/8/2027 |
How the Vermont list marks public samples (whole list). Labs highlighted green accept private samples.
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 Vermont
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 Orange County, Washington County and Caledonia County (about 2,129 people in Orange 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 |
|---|---|---|
| Orange County | 2,129 people (2010 base year) | |
| Washington County | 1,454 people (2010 base year) | |
| Caledonia County | 1,302 people (2010 base year) | |
| Orleans County | 937 people (2010 base year) | |
| Franklin County | 899 people (2010 base year) | |
| Windsor County | 747 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 243,796 people in Vermont 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: Vermont.
Other tests in Vermont
- 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)
- Vermont Department of Health - Laboratories Certified for Drinking Water Analysis (official list)
Vermont Department of Health - Laboratories Certified for Drinking Water Analysis.
Official source