Lead Water Testing Labs in Massachusetts (18 state-certified labs)
Labs on Massachusetts's official certification list that test drinking water for lead, with the ones that take homeowner samples first.
0 named for lead itself on the list.
Per the state list or a state web page. Call to confirm.
Located outside Massachusetts but on its list.
USGS estimate for Massachusetts.
How many labs test for lead in Massachusetts
18 labs on Massachusetts's official drinking-water lab list are certified to test for lead. Of these, 18 hold a group certification that includes it. 18 of them are marked as taking samples from the public. They are listed first. 8 are located outside Massachusetts.
The list is published by the Massachusetts Department of Environmental Protection (MassDEP) - Drinking Water Laboratory Certification. List version on file: Created and published on 12/18/2025. Fetched 2026-11-15 (UTC).
What this list covers. Only MassDEP's list for private well owners and residential customers is here (36 certified labs, not MassDEP's full roster). It names broad analysis categories, not the analytes each lab is certified for; that detail is in MassDEP's Labcert database, which we could not download. Check the analyte with the lab.
Massachusetts labs certified for lead
Marked as taking public samples (18)
| Lab | Location | Lead certification | Public samples | Cert. expiry |
|---|---|---|---|---|
| Analytical Balance | Middleboro, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Barnstable County Water Quality Laboratory | Barnstable, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Biomarine | Gloucester, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| GEL Laboratories, LLC | Charleston, SC | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Granite State Analytical Services LLC | Derry, NH | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| KNL Environmental Testing, LLC | Tampa, FL | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| MA State Public Health Laboratory | Jamaica Plain, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Microbac Laboratories, Inc. | Dayville, CT | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Nashoba Analytical | Ayer, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| National Testing Laboratories, LTD | Ypsilanti, MI | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| New England Testing Laboratory | West Warwick, RI | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Northeast Environmental Laboratory, Inc. | Danvers, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Pace Analytical Services, LLC- Melville, NY | Melville, NY | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Practical Applications | Woburn, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Quabbin Analytical Laboratory | Belchertown, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| RI Analytical | Warwick, RI | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Vallid Laboratories Inc. | Agawam, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
| Wampanoag Environmental Laboratory | Aquinnah, MA | Certified for a group that includes lead: confirm with the lab | Public samples: yes (per state) | Not on the list |
How the Massachusetts list marks public samples (whole list). Explicit yes/no per lab: MassDEP's list for private well owners asks 'Offers services to residential customers?'.
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 lead in Massachusetts
On a private well, lead almost always comes from the metal the water touches on its way to your glass, and corrosive water decides how much. Read our lead explainer.
Massachusetts guidance that mentions lead:
- MassDEP recommends testing coliform bacteria and nitrate/nitrite first and then at least once a year. It recommends testing arsenic, chloride, copper, fluoride, hardness, iron, lead, manganese, pH, sodium, radon, VOCs, PFAS6 and (bedrock wells only) a gross alpha screen first and then at least once every ten years, unless your local Board of Health requires otherwise. [1]
About 615,948 people in Massachusetts 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: Massachusetts.
Other tests in Massachusetts
- MassDEP, Protect Your Family: A Guide to Water Quality Testing for Private Wells
- USGS, Estimated use of water in the United States, county-level data for 2015 (Dieter et al., ver. 2.0, 2018)
- MassDEP Certified Laboratories Offering Analytical Services for Private Well Owners and Residential Customers (official list)
MassDEP Certified Laboratories Offering Analytical Services for Private Well Owners and Residential Customers.
Official source