Pace Analytical Services LLC - Westborough, MA

At a glance

What it is certified to test

4 of the 9 common well tests on the VT 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 (Oregon list)

Lab facts

Listed by

Vermont (Vermont Department of Health - Public Health Laboratory)

Address

8 Walkup Drive, Westborough, MA 01581 · Open in Google Maps

Phone

(508) 898-9220

Website

pacelabs.com

Public / homeowner samples

Public samples: ask the lab

Not highlighted on VT list (homeowner acceptance not stated)

Location note

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

Certification record

Certificate ID

VT 0935

Issued by

Vermont Department of Health - Public Health Laboratory (certification program)

Expiry on the list

1/1/2027 · expires in 47 days

List version

Vermont Department of Health - Laboratories Certified for Drinking Water Analysis, version September 28, 2026

We fetched it

15 Nov 2026 (file SHA-256 c9d664974c46…) · open the state file

Tests on the state list

Detailed scope sheet embedded in the state PDF: Pace - Westborough, MA - 25F.pdf

• 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*').

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.

• Virginia · VA lab 460195 / EPA MA00086 · Nitrate · Public samples: ask the lab
  Virginia DCLS - Drinking Water Certified Labs (analyte detail) (Current as of 8/1/2026)
• Pennsylvania · PA DEP 68-03671 · Nitrate, VOCs · Public samples: ask the lab
  PA DEP Accredited Labs Report - Drinking Water (chemistry) (STALE - report dated 6/11/2024)
• Massachusetts · M-MA086 · analytes not broken down · Not marked as taking public samples
  MassDEP Certified Laboratories Offering Analytical Services for Private Well Owners and Residential Customers (Created and published on 12/18/2025)
• Illinois · IEPA 200077 · Nitrate · Public samples: ask the lab
  IEPA Accredited Laboratories (Primary Labs / Secondary Labs) - Laboratories Accredited for Chemical Analysis + TNI LAMS fields of accreditation (Drinking Water, accrediting body IL ELAP) (12/09/2025 (date in the file name; the PDF prints no date); TNI LAMS as fetched 2026-11-15)
• Texas · TX Lab ID T104704476 · Nitrate · Public samples: ask the lab
  TCEQ Laboratory Approval Status - List of Accredited Laboratories (public database, Matrix: Drinking Water) (Live database, searched 2026-11-15 ("accurate as of the date and time of the search"))
• Maryland · 348 · Nitrate · Public samples: ask the lab
  Maryland's Certified Drinking Water Laboratories (MDE Laboratory Certification Program) (Latest Revisions: 10/1/2026)
• Oregon · MA-1316 · Nitrate · Public samples: yes (per state)
  ORELAP laboratory search (ODIE): accredited for the Drinking Water matrix (search as fetched 2026-11-15 (live database, no list date))
• Indiana · C-MA-03 · Nitrate · Public samples: ask the lab
  IDOH - Find a Certified Out-of-State Drinking Water Laboratory (program page table) (page as fetched 2026-11-07 (no date printed))
• Rhode Island · LAO00065 · Coliform / E. coli · Public samples: ask the lab
  RIDOH - Out of State Analytical Laboratories (March 18, 2026)

Nearest labs that take homeowner samples

4 other certified labs that take homeowner samples are within 25 miles of this lab. Distances are straight-line from the address on the state list (approx. = ZIP-code centre). “Takes homeowner samples” comes from a state list column or the lab’s own website, as named.

Price and turnaround as printed on each lab’s own website and checked by a second reader; – = not published or not read yet.

Around this lab: Worcester County, MA

• Private wells: about 160,140 people, 20% of Worcester County’s 818,963 residents (USGS, 2015); rank 1 of 14 counties in Massachusetts by people on wells.
• At house sale: Statewide (Title 5) has a septic system rule (310 CMR 15.301-15.305 (Title 5)). What it requires

• EPA radon zone (indoor air): Zone 1: highest potential (average indoor radon may be greater than 4 pCi/L). EPA says the zone map should not decide whether one home needs testing.
• Arsenic above 10 µg/L (USGS model): about 12,238 private-well users (95% range 9,139 to 16,208; 2010 base), rank 1 of 12 in the state. A screening estimate, not a measurement of any well.
• Older homes (Census ACS 2020–2024): 64% of 355,185 housing units were built before 1980, below the state share of 67%. Homes built before 1986 are more likely to have lead solder or fittings, so test tap water for lead there.
• PFAS in public water nearby (public supply, not your well): 49 public systems serving this county reported EPA UCMR 5 results; 21 had a PFOA or PFOS sample at or above 4.0 ng/L.

County figures describe where the lab is, not the lab. Sources: USGS 2015 water use and 2017 arsenic estimates, EPA radon zones, Census ACS table B25034 (2020–2024), EPA UCMR 5 (2023–2026); details and links on the sources page.

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 Vermont 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).