Based on contaminant patterns in this area — particularly Manganese and Radon — we recommend the following testing approach for private well owners.
Tap Score offers certified mail-in testing with results in 5–7 business days, tailored to regional contaminant patterns.
Order a Tap Score Well Water Test →State-certified labs in California:
Los Angeles County Public Health Laboratory 12750 Erickson Avenue, Downey 90242 · (562) 658-1300 Long Beach Public Health Laboratory 2525 Grand Avenue, Long Beach 90815 · (562) 570-4080 Eurofins Built Environment Testing West - Glendale, CA 1010 N. Central Avenue Suite 460, Glendale 91202 · (833) 465-5857 Eurofins Built Environment Testing West - Pomona, CA 931 Corporate Center Drive, Pomona 91768 · (623) 298-1015 Positive Lab Service 781 East Washington Boulevard, Los Angeles 90021 · (213) 745-5312 Michelson Laboratories, Inc. 6280 Chalet Drive, Commerce 90040 · (562) 928-0553 Anachem Laboratories, LLC 140 Standard Street, El Segundo 90245 · (310) 322-4993 Applied Microbiological Services (AMS) 1538 West Gaylord Street, Long Beach 90813 · (562) 495-9500 SGS Forensic Laboratories 20535 Belshaw Avenue, Carson 90746 · (310) 763-2374 Enviro-Chem, Inc. 1214 East Lexington Avenue, Pomona 91766 · (909) 590-5905 Pat-Chem Laboratories 1824 First Street, San Fernando 91340 · (800) 400-5227 World Oil Recycling 2000 North Alameda Street, Compton 90222 · (310) 537-7100 EMAX Laboratories, Inc. 3051 Fujita St., Torrance 90505 · (310) 618-8889 AQ Environmental Laboratories, LLC 1508 East 33rd Street, Signal Hill 90755 · (562) 206-2770 ASSET Laboratories 11110 Artesia Boulevard, Cerritos 90703 · (562) 219-7436New to well water testing? Read our complete guide to what to test for and when. Buying or selling a home with a well? See our well water & real estate guide for disclosure rules and lender requirements.
$1,097 · Iron/manganese removal
View on Amazon →$4,305 · NSF/ANSI 42/44
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