Alpha Analytical Laboratories, Inc. - Ukiah

At a glance

What it is certified to test

7 of the 9 common well tests on the CA 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

yes (California list)

Lab facts

Listed by

California (California State Water Resources Control Board - Environmental Laboratory Accreditation Program (ELAP))

Address

208 Mason Street, Ukiah, CA 95482 · Open in Google Maps

Phone

(707) 468-0401

Public / homeowner samples

Public samples: yes (per state)

CA ELAP lab type 'Commercial': accepts commercial samples per state list (broader than homeowner); call first

Left blank on the list

The California list (version Map layer fetched 2026-11-15; scope PDF as of 5/20/2026) gives no website for this lab.

Certification record

Certificate ID

CA ELAP 1551

Issued by

California State Water Resources Control Board - Environmental Laboratory Accreditation Program (ELAP) (certification program)

Expiry on the list

6/30/2027 · expires in 227 days

List version

California ELAP - Accredited Laboratories (map layer) + per-lab Fields of Accreditation, version Map layer fetched 2026-11-15; scope PDF as of 5/20/2026

We fetched it

15 Nov 2026 (file SHA-256 cbc97398a144…) · 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*').

167 drinking-water analytes across 37 methods in ELAP Fields of Accreditation 101 Microbiology of Drinking Water, 102 Inorganic Chemistry of Drinking Water, 103 Toxic Chemical Elements of Drinking Water, 104 Volatile Organic Chemistry of Drinking Water, 105 Semi-volatile Organic Chemistry of Drinking Water, 106 Radionuclides in Drinking Water. Scope PDF: https://www.waterboards.ca.gov/drinking_water/certlic/labs/documents/elap_certs/293.pdf (as of 5/20/2026).

Nearest labs that take homeowner samples

No other lab that takes homeowner samples is within 25 miles of this lab; the nearest is 50 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.

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: Mendocino County, CA

• Private wells: about 24,977 people, 28% of Mendocino County’s 87,649 residents (USGS, 2015); rank 22 of 58 counties in California 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 265 private-well users (95% range 201 to 347; 2010 base), rank 42 of 58 in the state. A screening estimate, not a measurement of any well.
• Older homes (Census ACS 2020–2024): 57% of 41,675 housing units were built before 1980, about the same as the state share of 56%. 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): 8 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 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).