At a glance
- What it is certified to test
- 1 of the 9 common well tests on the RI list (see which)
- Price
- not published on the state list: ask the lab for a quote
- Turnaround
- not stated on the state list or the lab’s website: ask when you order
- Homeowner samples
- yes (Massachusetts list)
Lab facts
- Listed by
- Rhode Island (Rhode Island Department of Health (RIDOH) - Center for Drinking Water Quality and State Health Laboratories, laboratory certification)
- Address
- 422 West Grove Street, Middleboro, MA 02346 · Open in Google Maps
- Phone
- (508) 946-2225
- Public / homeowner samples
- Public samples: ask the labNot stated in the list.
- Location note
- Lab is in MA, certified by Rhode Island (often used as a mail-in lab).
- Left blank on the list
- The Rhode Island list (version March 18, 2026) gives no website for this lab.
Certification record
- Certificate ID
- LAO00390
- Issued by
- Rhode Island Department of Health (RIDOH) - Center for Drinking Water Quality and State Health Laboratories, laboratory certification (certification program)
- List version
- RIDOH - Out of State Analytical Laboratories, version March 18, 2026
- We fetched it
- 7 Nov 2026 (file SHA-256 cfb244642b2c…) · open the state file
Tests on the state list
| Contaminant | On this state list | Same lab, other state lists |
|---|---|---|
| Coliform / E. coli | Group-level certification | Massachusetts |
| Nitrate | Not named on this list | |
| Arsenic | Not named on this list | |
| Lead | Not named on this list | Massachusetts |
| PFAS | Not named on this list | Massachusetts |
| Uranium | Not named on this list | |
| Radon (water) | Not named on this list | |
| Manganese | Not named on this list | |
| VOCs | Not named on this list |
Groups as written on the state list (4)
- Potable water microbiology
- Potable water inorganic chemistry
- Non-potable water microbiology
- Non-potable water inorganic chemistry
- Named on the official list The state list names this analyte (or a column for it) for this lab.
- Group-level certification Certified for a parent group (e.g. 'Inorganics') that includes this analyte. Confirm the specific test with the lab.
- Partial group certification The list marks the group as 'Partial'. Confirm this analyte with the lab.
- Subcontracted The lab sends this analyte to another accredited lab (MDH 'X*').
RIDOH lists "Potable water microbiology" for this lab but names no organism or method, so bacteria is shown as a certified group, not a named test (the drinking-water microbiology test is total coliform / E. coli). Ask the lab. RIDOH's out-of-state list gives certification categories only ("Contact the Certification Officer for specific analytes/methods"): organic and inorganic chemistry and radiochemistry name no analyte, so no nitrate, arsenic, lead, metals, VOC, uranium or radon certification is shown. Ask the lab.
Also certified by other states
Same business (same street address and ZIP) on another state's official list. Each state certifies separately, so each listing keeps its own source.
- Massachusetts · M-MA022 · Coliform / E. coli, Lead, PFAS · Public samples: yes (per state)MassDEP Certified Laboratories Offering Analytical Services for Private Well Owners and Residential Customers (Created and published on 12/18/2025)
Before you send a sample
Call the lab to confirm it's currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Bacteria samples have short holding times. Status can change between list updates. To check a status, contact the Rhode Island certification program.
Is this your lab?
Labs can ask for corrections through the agency that publishes their state list. Homeowner service, prices and turnaround above come only from the lab’s own website. To ask us to correct or remove this listing, write to us (how we handle listings).
RIDOH - Out of State Analytical Laboratories. Fetched 2026-11-07 (UTC). File SHA-256 cfb244642b2c…
Open the official source list