ALS Environmental - Stratford
Stratford, CT · Homeowner samples: yes (lab’s website)
At a glance
- What it is certified to test
- 5 of the 9 common well tests on the CT list (see which)
- Price
- no per-test price printed on the lab’s website when we read it (15 Nov 2026): ask for a quote
- Turnaround
- not stated on the state list or the lab’s website: ask when you order
- Homeowner samples
- yes (lab’s own website, read 15 Nov 2026)
Lab facts
- Listed by
- Connecticut (Connecticut Department of Public Health - Environmental Laboratory Certification Program)
- Address
- 120 Research Drive, Stratford, CT 06615 · Open in Google Maps
- Phone
- (203) 325-1371
- Website
- www.alsglobal.com/en/usa/usa-environmental/drinking-water-testingNot on the state list: found and checked by us, 15 Nov 2026
- Public / homeowner samples
- Homeowner samples: yes (lab’s website)CT DPH 'Private Well Testing' column
Certification record
- Certificate ID
- PH-0840
- Issued by
- Connecticut Department of Public Health - Environmental Laboratory Certification Program (certification program)
- List version
- CT DPH In-State Approved Commercial Laboratories Certified to Test Drinking Water, version 10/09/2026
- We fetched it
- 29 Oct 2026 (file SHA-256 a5af85ed2624…) · open the state file
Tests on the state list
| Contaminant | On this state list |
|---|---|
| Coliform / E. coli | Not named on this list |
| Nitrate | Group-level certification |
| Arsenic | Named on the official list |
| Lead | Group-level certification |
| PFAS | Not named on this list |
| Uranium | Named on the official list |
| Radon (water) | Not named on this list |
| Manganese | Not named on this list |
| VOCs | Group-level certification |
| Other metals | Group-level certification |
Groups as written on the state list (4)
- Arsenic
- Inorganics (inorganic chemicals, physical, sanitary chemicals, nitrate, metals - some or all)
- Organic chemicals (SVOC, HAA, VOC, pesticides, PCBs, SOC - some or all)
- Uranium by EPA Method 200.8
- 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*').
Homeowner service and turnaround (lab’s own website)
- Takes homeowner samples: yes. The lab’s site says: “offer both private test kits for homeowners and field service operations to meet regulatory needs” source
- Prices: no price printed on the lab’s website when we read it on 15 Nov 2026: ask for a quote.
From the lab’s own website, read 15 Nov 2026 and re-read by a second checker; next check due by 13 Feb 2027. Certification fields come from the state list only.
Nearest labs that take homeowner samples
4 other certified labs that take homeowner samples are 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.
| Lab and tests named on its list | Town | Distance | Tests in common with this lab | Price printed | Turnaround printed | Homeowner samples: source |
|---|---|---|---|---|---|---|
| Regional Water Authority Coliform / E. coli, Nitrate, Arsenic, Lead, PFAS | New Haven, CT | 14 mi | 4 | – | – | Connecticut list |
| Aquatek Labs, Inc. Coliform / E. coli, Nitrate, Arsenic, Lead | Woodbridge, CT | 15 mi | 5 | – | – | Connecticut list |
| ALS Environmental - Newtown Coliform / E. coli, Nitrate, Arsenic, Lead | Newtown, CT | 18 mi | 5 | – | – | Connecticut list |
| Stamford Health Department Laboratory Coliform / E. coli, Nitrate, Arsenic, Lead | Stamford, CT | 22 mi | 3 | – | – | Connecticut list |
| Greenwich Health Department Laboratory Coliform / E. coli, Nitrate, Arsenic, Lead | Greenwich, CT | 27 mi | 4 | – | – | Connecticut 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: Fairfield County, CT
- Private wells: about 179,447 people, 19% of Fairfield County’s 948,053 residents (USGS, 2015); rank 2 of 8 counties in Connecticut by people on wells.
- EPA radon zone (indoor air): Zone 1: highest potential (average indoor radon may be greater than 4 pCi/L). EPA says the zone map should not decide whether one home needs testing.
- Arsenic above 10 µg/L (USGS model): about 11,418 private-well users (95% range 7,738 to 16,791; 2010 base), rank 2 of 8 in the state. A screening estimate, not a measurement of any well.
- PFAS in public water nearby (public supply, not your well): 13 public systems serving this county reported EPA UCMR 5 results; 11 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 Connecticut 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).
CT DPH In-State Approved Commercial Laboratories Certified to Test Drinking Water. Fetched 2026-10-29 (UTC). File SHA-256 a5af85ed2624…
Open the official source list