ALS Group USA, Corp. dba ALS Environmental

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

Pennsylvania (Pennsylvania DEP - Laboratory Accreditation Program)

Address

10450 Stancliff Rd, Suite 210, Houston, TX 77099 · Open in Google Maps

Phone

(281) 530-5656

Public / homeowner samples

Public samples: ask the lab

PA DEP accreditation report has no homeowner-sample flag

Location note

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

Left blank on the list

The Pennsylvania list (version STALE - report dated 6/11/2024) gives no website for this lab.

Certification record

Certificate ID

PA DEP 68-03441

Issued by

Pennsylvania DEP - Laboratory Accreditation Program (certification program)

List version

PA DEP Accredited Labs Report - Drinking Water (chemistry), version STALE - report dated 6/11/2024

We fetched it

29 Oct 2026 (file SHA-256 415f95aac8bd…) · 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*').

STALE LIST: PA DEP bulk Accredited Labs Report(s) dated 6/11/2024. The live PA DEP lab search was unreachable on 2026-10-29 (HTTP 500 / TLS error). Confirm current accreditation with PA DEP or 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.

• Washington · EPA TX02693 / WA DOH #260 · analytes not broken down · Public samples: yes (per state)
  WA Ecology - Environmental Laboratories Accredited for Drinking Water Analyses (with scopes) (Information current as of 11/13/2026)
• 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))

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 Pennsylvania 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).