Microbac Laboratories, Inc.

At a glance

What it is certified to test

4 of the 9 common well tests on the MA 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

Massachusetts (Massachusetts Department of Environmental Protection (MassDEP) - Drinking Water Laboratory Certification)

Address

61 Louisa Viens Drive, Dayville, CT 06241 · Open in Google Maps

Phone

(860) 774-6814

Public / homeowner samples

Public samples: yes (per state)

MassDEP list 'Offers services to residential customers?': Yes

Location note

Lab is in CT, certified by Massachusetts (often used as a mail-in lab).

Left blank on the list

The Massachusetts list (version Created and published on 12/18/2025) gives no website for this lab.

Certification record

Certificate ID

M-CT008

Issued by

Massachusetts Department of Environmental Protection (MassDEP) - Drinking Water Laboratory Certification (certification program)

List version

MassDEP Certified Laboratories Offering Analytical Services for Private Well Owners and Residential Customers, version Created and published on 12/18/2025

We fetched it

15 Nov 2026 (file SHA-256 f56b9b720b22…) · open the state file

Tests on the state list

• 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*').

Residential package for several contaminants: Yes. Getting the sample to the lab: In-Person Drop Off, Overnight Mail, Courier Services. Availability: Normal Business Hours. Preferred contact: phone or email. MassDEP lists analyses by category only; ask the lab which analytes it is certified for.

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.

• Connecticut · PH-0465 · Coliform / E. coli, Nitrate, Arsenic, Lead, Uranium, VOCs, Other metals · Public samples: yes (per state)
  CT DPH In-State Approved Commercial Laboratories Certified to Test Drinking Water (10/09/2026)
• Virginia · VA lab 460279 / EPA CT00008 · Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  Virginia DCLS - Drinking Water Certified Labs (analyte detail) (Current as of 8/1/2026)
• Pennsylvania · PA DEP 68-04413 · Arsenic, Lead, Uranium, Manganese, VOCs, Other metals · Public samples: ask the lab
  PA DEP Accredited Labs Report - Drinking Water (chemistry) (STALE - report dated 6/11/2024)
• Tennessee · 04903 · Nitrate, Arsenic, Lead, VOCs, Other metals · Public samples: ask the lab
  TDEC Division of Water Resources - Commercial Laboratories Certified for Drinking Water Analysis (10/2/2026 (page footers 10/06/2026))
• Maryland · 349 · Nitrate, Arsenic, Lead, Uranium, VOCs, Other metals · Public samples: ask the lab
  Maryland's Certified Drinking Water Laboratories (MDE Laboratory Certification Program) (Latest Revisions: 10/1/2026)
• North Carolina · 09700 · Nitrate, Arsenic, Lead, Manganese, VOCs, Other metals · Public samples: ask the lab
  NC SLPH Environmental Sciences - Certified Drinking Water Laboratories (Commercial) (generated on request (no date printed), fetched 2026-11-07)
• Rhode Island · LAO00346 · Coliform / E. coli · Public samples: yes (per state)
  RIDOH - Out of State Analytical Laboratories (March 18, 2026)

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 Massachusetts 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).