At a glance
- What it is certified to test
- 1 of the 9 common well tests on the TX 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
- not stated: ask the lab
Lab facts
- Listed by
- Texas (Texas Commission on Environmental Quality (TCEQ) - Laboratory Accreditation Program (NELAP))
- Address
- 861 State Highway 19 South, Huntsville, TX 77320-1111 · Open in Google Maps
- Phone
- (936) 291-1881
- Public / homeowner samples
- Public samples: ask the labNot stated in the list.
- Left blank on the list
- The Texas list (version Live database, searched 2026-11-15 ("accurate as of the date and time of the search")) gives no website for this lab.
Certification record
- Certificate ID
- TX Lab ID T104704204
- Issued by
- Texas Commission on Environmental Quality (TCEQ) - Laboratory Accreditation Program (NELAP) (certification program)
- Expiry on the list
- 11/30/2026 · expires in 15 days
- List version
- TCEQ Laboratory Approval Status - List of Accredited Laboratories (public database, Matrix: Drinking Water), version Live database, searched 2026-11-15 ("accurate as of the date and time of the search")
- We fetched it
- 15 Nov 2026 (file SHA-256 d09853d6717d…) · open the state file
Tests on the state list
| Contaminant | On this state list |
|---|---|
| Coliform / E. coli | Named on the official list |
| Nitrate | Not named on this list |
| Arsenic | Not named on this list |
| Lead | Not named on this list |
| PFAS | Not named on this list |
| Uranium | Not named on this list |
| Radon (water) | Not named on this list |
| Manganese | Not named on this list |
| VOCs | Not named on this list |
Groups as written on the state list (2)
- Residue-filterable (TDS)
- Total coliforms and E. coli (P/A)
- 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*').
TCEQ lists 2 drinking-water analytes this lab is accredited for. TCEQ database: lab type Commercial; 'Commercial?' Yes; 'Is Primary?' Yes. Phone from TCEQ's PWS Laboratory Map Table (Last Updated 03/26/2026).
Nearest labs that take homeowner samples
No other lab that takes homeowner samples is within 25 miles of this lab; the nearest is 36 miles away. 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.
| Lab and tests named on its list | Town | Distance | Tests in common with this lab | Price printed | Turnaround printed | Homeowner samples: source |
|---|---|---|---|---|---|---|
| SPL, Inc.-Conroe Coliform / E. coli, Nitrate, Arsenic, Lead | Conroe, TX | 36 mi | 1 | – | – | lab’s own website, read 14 Nov 2026 |
| Angelina and Neches River Authority Environmental Laboratory Coliform / E. coli | Lufkin, TX | 63 mi | 1 | – | – | lab’s own website, read 14 Nov 2026 |
| City of Houston Health Department, Bureau of Laboratory Services Coliform / E. coli, Lead | Houston, TX | 71 mi | 1 | – | The analysis takes 24 hours to comple... | lab’s own website, read 15 Nov 2026 |
| ALS Group USA, Corp not broken down on its list | Houston, TX | 74 mi | 0 | – | – | Washington list |
| SPL, Inc – Kilgore Coliform / E. coli, Nitrate, Arsenic, Lead | Kilgore, TX | 120 mi | 1 | – | – | Louisiana list |
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: Walker County, TX
- Private wells: about 10,035 people, 14% of Walker County’s 70,699 residents (USGS, 2015); rank 36 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 341 private-well users (95% range 226 to 514; 2010 base), rank 49 of 254 in the state. A screening estimate, not a measurement of any well.
- Older homes (Census ACS 2020–2024): 33% of 30,383 housing units were built before 1980, about the same as 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): 2 public systems serving this county reported EPA UCMR 5 results; 1 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 Texas 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).
TCEQ Laboratory Approval Status - List of Accredited Laboratories (public database, Matrix: Drinking Water). Fetched 2026-11-15 (UTC). File SHA-256 d09853d6717d…
Open the state lab-certification page (official list)