ALS Group USA, Corp.- ALS Environmental
Houston, TX · Public samples: yes (per state)
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 (California list)
Lab facts
- Listed by
- California (California State Water Resources Control Board - Environmental Laboratory Accreditation Program (ELAP))
- Address
- 10450 Stancliff Road, Suite 210, Houston, TX 77099 · Open in Google Maps
- Phone
- (281) 530-5656
- Public / homeowner samples
- Public samples: yes (per state)CA ELAP lab type 'Commercial': accepts commercial samples per state list (broader than homeowner); call first
- Location note
- Lab is in TX, certified by California (often used as a mail-in lab).
- Left blank on the list
- The California list (version Map layer fetched 2026-11-15; scope PDF as of 5/1/2025) gives no website for this lab.
Certification record
- Certificate ID
- CA ELAP 2919
- Issued by
- California State Water Resources Control Board - Environmental Laboratory Accreditation Program (ELAP) (certification program)
- Expiry on the list
- 4/30/2026 · Date on list has passed (199 days ago)
- List version
- California ELAP - Accredited Laboratories (map layer) + per-lab Fields of Accreditation, version Map layer fetched 2026-11-15; scope PDF as of 5/1/2025
- We fetched it
- 15 Nov 2026 (file SHA-256 cbc97398a144…) · 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.
Groups as written on the state list (2)
- 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)
- 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) Screening Only
- 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*').
2 drinking-water analytes across 1 methods in ELAP Fields of Accreditation 105 Semi-volatile Organic Chemistry of Drinking Water. Scope PDF: https://www.waterboards.ca.gov/drinking_water/certlic/labs/documents/elap_certs/1293.pdf (as of 5/1/2025). The scope PDF's expiration date (4/30/2026) has passed; the ELAP map layer still lists the lab as Certified, so check its current standing with ELAP. Primary accreditation body per the scope PDF: TX (California accreditation by reciprocity).
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)
- Pennsylvania · PA DEP 68-03441 · analytes not broken down · Public samples: ask the labPA DEP Accredited Labs Report - Drinking Water (chemistry) (STALE - report dated 6/11/2024)
- Tennessee · 04016 · Nitrate, Arsenic, Lead, VOCs, Other metals · Public samples: ask the labTDEC 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 labEGLE - Certified Out of State Laboratories (9/8/2025 (out-of-state list))
- Illinois · IEPA 200032 · analytes not broken down · Public samples: ask the labIEPA 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 labFlorida 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 labTCEQ 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 labKDHE 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 labMaryland'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 California 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).
California ELAP - Accredited Laboratories (map layer) + per-lab Fields of Accreditation. Fetched 2026-11-15 (UTC). File SHA-256 cbc97398a144…
Open the state lab-certification page (official list)