Legend Technical Services of Arizona, Inc. DBA Legend Analytical

At a glance

What it is certified to test

8 of the 9 common well tests on the AZ 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

Arizona (Arizona Department of Health Services (ADHS) - Bureau of State Laboratory Services, Office of Laboratory Licensure & Certification (Environmental Laboratory Licensure))

Address

17631 N. 25th Avenue, Phoenix, AZ 85023 · Open in Google Maps

Phone

(602) 324-6100

Public / homeowner samples

Public samples: ask the lab

Not stated per lab. ADHS's private-well pamphlet says "Independent laboratories can test the water from your private well." and points well owners to this list.

Left blank on the list

The Arizona list (version current as of Saturday, November 7, 2026) gives no website for this lab.

Certification record

Certificate ID

AZ0004

Issued by

Arizona Department of Health Services (ADHS) - Bureau of State Laboratory Services, Office of Laboratory Licensure & Certification (Environmental Laboratory Licensure) (certification program)

List version

ADHS Safe Drinking Water Commercial Lab List (List of Arizona Certified Commercial Drinking Water Laboratories), version current as of Saturday, November 7, 2026

We fetched it

7 Nov 2026 (file SHA-256 aacb74bfb1fa…) · open the state file

Tests on the state list

• 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*').

ADHS lists 58 Safe Drinking Water parameters for this licence (AZ0004). ADHS lists VOCs as one parameter ("VOCS BY GC/MS" with its method) and names no compound, so VOCs are shown as a certified group, not as named tests.

Nearest labs that take homeowner samples

2 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.

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: Maricopa County, AZ

• Private wells: about 42,440 people, 1% of Maricopa County’s 4,167,947 residents (USGS, 2015); rank 1 of 15 counties in Arizona by people on wells.
• At house sale: Statewide (ADEQ Transfer of Ownership) has a septic system rule (A.A.C. R18-9-A316 (Arizona Administrative Code, Title 18, Ch. 9, Supp. 25-2)). What it requires

• EPA radon zone (indoor air): Zone 2: moderate potential (average indoor radon may be between 2 and 4 pCi/L). EPA says the zone map should not decide whether one home needs testing.
• Arsenic above 10 µg/L (USGS model): about 3,884 private-well users (95% range 3,154 to 4,707; 2010 base), rank 1 of 15 in the state. A screening estimate, not a measurement of any well.
• Older homes (Census ACS 2020–2024): 29% of 1,884,334 housing units were built before 1980, about the same as the state share of 29%. 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): 52 public systems serving this county reported EPA UCMR 5 results; 9 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 Arizona 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).