At a glance
- Accredited to analyse
- asbestos: material samples by PLM (what that means)
- Price
- no price printed on the lab’s website when we read it (November 13, 2026): ask for a quote
- Turnaround
- not published: ask when you send samples
- Accreditation runs to
- September 30, 2027
Lab facts
- Address
- 3955 Industrial Way, Suite B, Concord, CA 94520-8544 · Open in Google Maps
- Website
- www.microtestlabsinc.com
- Tests listed for
- Asbestos
- Left blank on the list
- The official list gives no phone for this site.
Copied from the official lists below. Business details only.
What this lab can test for you
- Asbestos testing: accredited to analyse pieces of popcorn ceiling, vinyl floor tile, pipe wrap or other building material.
- Not accredited for air samples by TEM: the nearest accredited lab site that is, Asbestos TEM Laboratories, Inc. in Oakland, CA, is 18 miles away.
From the accreditation scope on the official list; distances are straight lines between ZIP-code centres. Ask the lab which sample types it accepts by mail before you cut or wipe anything.
Accreditation record
- NIST NVLAP asbestos, lab code 600389-0: accredited for bulk samples by PLM; expires September 30, 2027 · 319 days left.
Accreditation as listed by NIST NVLAP on November 7, 2026; confirm with the lab.
NIST NVLAP: Asbestos Fiber Analysis
Accreditation as listed by NIST NVLAP on November 7, 2026; confirm with the lab.
- Name on the list
- MicroTest Laboratories, Inc
- NVLAP lab code
- 600389-0
- Lab type
- Commercial Testing Service
- Accreditation expires
- September 30, 2027
- Bulk (PLM)
- Yes
- Airborne (TEM)
- No
Scope (test methods)
| Category | NVLAP method code | Test method as printed |
|---|---|---|
| Bulk Asbestos Analysis | 18/A01 | EPA -- 40 CFR Appendix E to Subpart E of Part 763, Interim Method of the Determination of Asbestos in Bulk Insulation Samples |
| Bulk Asbestos Analysis | 18/A03 | EPA 600/R-93/116: Method for the Determination of Asbestos in Bulk Building Materials |
Search the official NVLAP directory for lab code 600389-0 · NVLAP asbestos program page. Confirm the test you need with the lab before you send samples.
What the lab’s website says
- We read the lab’s website on November 13, 2026: it printed no per-sample price for homeowners.
- The same website covers 2 listed lab sites of this firm.
Prices and policies change; ask the lab for a quote before you send samples.
Same firm, other accredited sites
4 sites of this firm in 1 state are on the NVLAP or NLLAP lists. Each site is accredited separately.
- MicroTest Laboratories, Inc · Orange, CA · asbestos
- Microtest Laboratories, Inc. · Rancho Cordova, CA · asbestos, lead
- MicroTest Laboratories, Inc · San Diego, CA · asbestos
Nearest other accredited labs
Asbestos testing
3 other accredited asbestos lab sites within 25 miles. Straight-line distance between ZIP-code centres.
| Lab site | Town | Distance | Prints a homeowner price |
|---|---|---|---|
| Asbestos TEM Laboratories, Inc. | Oakland, CA | 18 mi | – |
| Eurofins Built Environment Testing West, LLC | Emeryville, CA | 18 mi | – |
| EMSL Analytical, Inc. | San Leandro, CA | 20 mi | Yes |
| Envirocheck, Inc. | Hayward, CA | 26 mi | – |
| SGS Forensic Laboratories | Hayward, CA | 26 mi | – |
Homes around this lab
Contra Costa County: 53% of 429,260 housing units were built before 1980, below the California share of 56% (Census ACS 2020–2024, table B25034). EPA links lead-based paint to homes built before 1978, and asbestos was common in building materials of that era. The ACS groups years by decade, so 1980 is the nearest cut.
Older homes within 25 miles
About 718,996 homes built before 1980 are in the 3 counties whose centre lies within 25 miles of this lab (Alameda County, Contra Costa County, Solano County).
- Asbestos testing: 4 accredited lab sites within 25 miles, about 179,749 older homes per site, about the same as the California figure of 174,386 older homes per listed site (47 sites).
Census ACS 2020–2024, table B25034; county centres are the mean of their ZIP-code points.
Water and housing around this lab
- Radon: Contra Costa County is EPA Zone 2, moderate radon potential (2 to 4 pCi/L). Renovation that opens floors or basements is a common time to test.
- Private wells: about 88,873 people, 8% of residents, drink from a private well (USGS 2015), the 37th highest share of 58 counties in California.
- Well-water testing: the nearest state-certified drinking-water lab that its state list marks as taking homeowner samples is McCampbell Analytical, Inc., 7 miles away.
- Public drinking water: 11 public water systems serving Contra Costa County reported EPA UCMR 5 PFAS tests (2023–2026); 0 had a PFOA or PFOS result at or above 4.0 ng/L, the level EPA set for each in 2024. These are water suppliers’ results, not private wells.
- Arsenic in private wells (USGS model): about 3,370 private-well users in Contra Costa County may drink water above 10 µg/L of arsenic (2010 base; a screening estimate, not a measurement).
County figures for Contra Costa County, CA, where this lab’s ZIP code lies: EPA radon zone map, USGS 2015 water-use and arsenic estimates, EPA UCMR 5 (public water systems), state drinking-water lab lists and our septic rule register.
Is this your lab?
Names, addresses and phone numbers come from the official lists, and the accrediting program can correct them. To tell us about a mistake, contact us.