Get your water tested in Arizona.
The labs Arizona certifies to test drinking water, from the state’s own list of Oct. 17, 2026. A lab test is the only way to know what is in your own tap or well.
The short answer
Arizona’s list has 49 labs certified to test drinking water: 23 in Arizona and 26 in other states.
Certification is test by test, so check that a lab is certified for what you want tested, and call first: it will say which bottles to use and how soon the sample has to arrive.
Labs in Arizona
23 labs, by city.
| Lab | City | Phone | Certified for |
|---|---|---|---|
| Mohave Environmental Labs | Bullhead City | (928) 754-8101 | Not listed |
| AnalysisNow! Inc. | Chandler | (480) 892-1120 | Not listed |
| Radiation Safety Engineering, Inc. | Chandler | (480) 897-9459 | Not listed |
| Inner Basin Environmental, LLC | Flagstaff | (928) 440-5168 | Not listed |
| Nortest Analytical | Flagstaff | (928) 774-2312 | Not listed |
| Mohave Environmental Labs | Holbrook | (928) 754-8101 | Not listed |
| Statewide Laboratory | Mesa | (480) 981-8859 | Not listed |
| Alliance Technical Group, LLC – Phoenix | Phoenix | (714) 832-0064 | Not listed |
| Eurofins Environment Testing Southwest | Phoenix | (602) 437-3340 | Not listed |
| Fiberquant Analytical Services | Phoenix | (602) 276-6139 | Not listed |
| Legend Technical Services of Arizona, Inc. DBA Legend Analytical | Phoenix | (602) 324-6100 | Not listed |
| Motzz Laboratory, Inc. | Phoenix | (602) 454-2376 | Not listed |
| Bradshaw Mountain Environmental Inc. | Prescott Valley | (928) 778-4510 | Not listed |
| Sacred Water Testing LLC | Show Low | (928) 324-2917 | Not listed |
| A & B Labs Arizona Inc. | Tempe | (602) 437-0762 | Not listed |
| AGAT Laboratories | Tempe | (480) 590-8839 | Not listed |
| Aquatic Consulting & Testing, Inc. | Tempe | (480) 921-8044 | Not listed |
| American Analytical | Tucson | (928) 985-9399 | Not listed |
| Complete Analytical Services, LLC | Tucson | (520) 884-5811 | Not listed |
| Legend Technical Services of Arizona, Inc. DBA Legend Analytical | Tucson | (520) 327-1234 | Not listed |
| Turner Laboratories, Inc. | Tucson | (520) 882-5880 | Not listed |
| Eurofins Microbiology Laboratories | Yuma | (928) 317-1127 | Not listed |
| Fresh Terra Services, LLC. | Yuma | (928) 257-3601 | Not listed |
Labs in other states
26 labs Arizona certifies outside the state, by state and city. Ask whether a lab takes samples by mail, and how fast they have to arrive.
| Lab | City | Phone | Certified for |
|---|---|---|---|
| WECK Laboratories, Inc. | City of Industry, CA | (626) 336-2139 | Not listed |
| Eurofins Pomona | Pomona, CA | (626) 386-1100 | Not listed |
| Alliance Technical Group, LLC – Tustin | Tustin, CA | (714) 832-0064 | Not listed |
| Eurofins Tustin | Tustin, CA | (714) 895-5494 | Not listed |
| Eurofins Sacramento | West Sacramento, CA | (916) 373-5600 | Not listed |
| Eurofins Denver | Arvada, CO | (303) 736-0100 | Not listed |
| ACZ Laboratories, Inc. | Steamboat Springs, CO | (970) 879-6590 | Not listed |
| Biological Consulting Services of North Florida, Inc. (BCS) | Gainesville, FL | (352) 377-9272 | Not listed |
| PACE Analytical Services, LLC - Ormond Beach FL | Ormond Beach, FL | (386) 672-5668 | Not listed |
| Eurofins South Bend | South Bend, IN | (574) 233-4777 | Not listed |
| SGS North America Inc. - Scott | Scott, LA | (337) 237-4775 | Not listed |
| Battelle Analytical Chemistry Services Laboratory | Norwell, MA | (781) 681-5400 | Not listed |
| AnalytiChem USA, Inc. | Winslow, ME | (207) 873-7711 | Not listed |
| National Testing Laboratories, LTD. | Ypsilanti, MI | (734) 483-8333 | Not listed |
| Pace Analytical Services, LLC. - Minneapolis MN | Minneapolis, MN | (612) 607-1700 | Not listed |
| Eurofins St. Louis | Earth City, MO | (314) 298-8566 | Not listed |
| Eurofins Built Environment Testing East - Cary | Cary, NC | (919) 481-1413 | Not listed |
| SGS North America Inc. - Dayton | Dayton, NJ | (732) 329-0200 | Not listed |
| Eurofins Albuquerque | Albuquerque, NM | (505) 345-3975 | Not listed |
| Microbac Laboratories, Inc. | Marietta, OH | (740) 373-4071 | Not listed |
| PACE Analytical Services, LLC - Greensburg PA | Greensburg, PA | (724) 850-5600 | Not listed |
| Eurofins Lancaster Laboratories Environment Testing, LLC | Lancaster, PA | (717) 656-2300 | Not listed |
| Pace Analytical National Center for Testing & Innovation | Mt. Juliet, TN | (615) 758-5858 | Not listed |
| NOVA Biologicals, Inc. | Conroe, TX | (936) 756-5333 | Not listed |
| A & B Environmental Services, Inc | Houston, TX | (713) 453-6060 | Not listed |
| ALS Environmental, Kelso | Kelso, WA | (360) 577-7222 | Not listed |
What to ask a lab to test
- On a private well: no one else tests it. What to test a well for, and how often.
- On city water: your utility tests what leaves the plant, not what your own pipes add. Testing your tap for lead.
- What it costs: fees vary by lab and by test, and some states test wells for free. What a water test costs.
- Anything your utility’s report flags: a lab certified for that contaminant can test your own tap. Arizona utilities’ reports.
Source: Arizona Department of Health Services, Arizona certified commercial drinking water laboratories, dated Oct. 17, 2026, read Oct. 17, 2026. Labs are listed as the state lists them; what each is certified for is as far as the list says. Certifications change, so a lab’s own word is the latest.
A lab named for a water utility is listed apart. Distances on town pages are straight lines between ZIP code centers from the Census 2020 gazetteer. How labs are listed here.
Where to go next
- Testing a private wellWhat to test for every year, what else depends on where you live, and reading the results.How to test well water
- Arizona utilitiesEvery utility with a full report: what its results show, and its violations.Arizona tap water
- Labs in other statesEvery state TapBuff has read, and where to find the rest.Certified labs by state