Based on contaminant patterns in this area — particularly Radon and Arsenic — 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:
Western Analytical Laboratories, Inc. 14125 Telephone Ave. Ste 7, Chino 91710 · (909) 627-3628 Geo-Monitor, Inc 17152 Darwin Street, Hesperia 92345 · (760) 244-3481 Clinical Laboratory of San Bernardino, Inc. 21881 Barton Road, Grand Terrace 92313 · (909) 825-7693 A & R Laboratories, Inc. 1650 S. Grove Ave, Suite C, Ontario 91761 · (951) 779-0310 ATEL, LLC 5817 Pine Avenue, Suite B-2, Chino Hills 91709 · (909) 393-3330 Well Water Testing California | Certified Laboratory ... → Professional Water Test Lab | Drinking Water Testing Service in CA → Water Testing for Private Wells - Sonoma County Emergency → Well Water Testing – Why It's So Important → Drinking Water Testing Laboratory — Babcock Laboratories, Inc. → Drinking, Well Water Testing Analysis Lab | California Laboratory Services → Getting Your Water Tested → Water Quality Testing & Analysis: Residential & Commercial Supply Testing for Contaminants & Heavy Metals in San Diego, Orange County and Bay Area | Vert Environmental → Water Quality Testing Labs - Cal Water → Drinking Water & Well Water Testing - Environmental testing and analysis labs, ELAP, NADCAP accredited | Pat Chem Laboratories →New 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.
$500-$700 · Granular activated carbon (GAC)
View on Amazon →$1,395 · Whole-house carbon filtration
View Product →$2,195 · Aeration (EPA-preferred for high radon)
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