ALS Group USA, Corp

At a glance

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 (Washington list)

Lab facts

Listed by

Washington (Washington State Department of Ecology - Lab Accreditation Program (with WA DOH))

Address

10450 Stancliff Rd, Houston, TX 77099 · Open in Google Maps

County

Harris

Phone

(281) 530-5656

Public / homeowner samples

Public samples: yes (per state)

WA Ecology Lab Search label 'Accepts Commercial/Public Samples' (broader than homeowner: confirm the lab takes household samples)

Location note

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

Left blank on the list

The Washington list (version Information current as of 11/13/2026) gives no website for this lab.

Certification record

Certificate ID

EPA TX02693 / WA DOH #260

Issued by

Washington State Department of Ecology - Lab Accreditation Program (with WA DOH) (certification program)

Expiry on the list

11/14/2027 · expires in 364 days

List version

WA Ecology - Environmental Laboratories Accredited for Drinking Water Analyses (with scopes), version Information current as of 11/13/2026

We fetched it

15 Nov 2026 (file SHA-256 e7c9dab549d5…) · open the state file

Tests on the state list

This list does not break certification down by analyte. Ask the lab which tests it is certified for; the groups as written on the list are below.

• 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*').

1 drinking-water analytes on the WA scope (Mass Spectrometry).

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.

• Pennsylvania · PA DEP 68-03441 · analytes not broken down · Public samples: ask the lab
  PA DEP Accredited Labs Report - Drinking Water (chemistry) (STALE - report dated 6/11/2024)
• California · CA ELAP 2919 · analytes not broken down · Public samples: yes (per state)
  California ELAP - Accredited Laboratories (map layer) + per-lab Fields of Accreditation (Map layer fetched 2026-11-15; scope PDF as of 5/1/2025)
• Tennessee · 04016 · 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))
• Michigan · 9971 · analytes not broken down · Public samples: ask the lab
  EGLE - Certified Out of State Laboratories (9/8/2025 (out-of-state list))
• Illinois · IEPA 200032 · analytes not broken down · 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)
• Florida · FL DOH E87611 · analytes not broken down · Public samples: ask the lab
  Florida DOH - Laboratories Certified Under NELAP (DEP Qlik app): Analyte Search + Organization Name and Location Search, Matrix = Drinking Water, Certification Status = Accredited, Active labs (DOH Version: 11/07/2026 08:30:01 (Qlik app refresh 11/9/2026 4:26:47 AM; live database))
• Texas · TX Lab ID T104704231 · analytes not broken down · 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"))
• Louisiana · LA028 · analytes not broken down · Public samples: yes (per state)
  LDH - 2026 List of Laboratories Certified by Louisiana for Drinking Water Analyses - Chemistry (Current as of 2/12/2026)
• Kansas · KS Lab ID E-10352 · analytes not broken down · Public samples: ask the lab
  KDHE Approved Laboratory Search (AB Manager public database, Matrix: Drinking Water) (Live database, searched 2026-11-15 ("believed to be accurate at the time of the search"))
• Maryland · 343 · analytes not broken down · Public samples: ask the lab
  Maryland's Certified Drinking Water Laboratories (MDE Laboratory Certification Program) (Latest Revisions: 10/1/2026)
• Oregon · TX200002 · analytes not broken down · 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))

Nearest labs that take homeowner samples

1 other certified lab that takes homeowner samples is 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: Harris County, TX

• Private wells: about 45,985 people, 1% of Harris County’s 4,538,028 residents (USGS, 2015); rank 4 of 254 counties in Texas by people on wells.

• EPA radon zone (indoor air): Zone 3: low potential (average indoor radon may be less than 2 pCi/L). EPA says the zone map should not decide whether one home needs testing.
• Arsenic above 10 µg/L (USGS model): about 6,396 private-well users (95% range 4,381 to 9,270; 2010 base), rank 3 of 254 in the state. A screening estimate, not a measurement of any well.
• Older homes (Census ACS 2020–2024): 37% of 1,917,790 housing units were built before 1980, above the state share of 33%. 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): 271 public systems serving this county reported EPA UCMR 5 results; 18 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 Washington 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).