South Bay households looking for water testing have a lab in the neighborhood: KETOS KELP runs its laboratory in Sunnyvale, serving San Jose, Santa Clara, Mountain View, Palo Alto, and the wider Santa Clara County area with mail-in panels that skip the cross-country shipping most kits require. The valley’s long industrial and semiconductor manufacturing history makes the local testing conversation concrete: metals and PFAS are the panels South Bay residents ask about most.
What South Bay Households Test For
- PFAS. Decades of manufacturing history and firefighting-foam sites across the region put forever chemicals on the local list. Check detections near your zip code, then measure your own tap; the 2024 federal limits sit at 4 ppt for PFOA and PFOS.
- Metals from home plumbing. The South Bay’s housing stock spans a century, and lead and copper enter between the main and the tap, where utility reports cannot see. Pre-1986 plumbing raises the priority.
- General chemistry. Hardness, TDS, and pH shape everything from appliance life to whether plumbing leaches; a baseline panel documents where your home stands.
Concerned about contaminants in your water?
Get water testing from KETOS KELP using EPA-certified methodology, results you can trust, backed by real data.
Order a Water Test →How Local Testing Works
The process is the same mail-in flow KELP runs nationally, with the geography working in your favor: order a panel, collect from your tap with the provided bottles, and return with the prepaid label to the Sunnyvale lab. Home panels start at $199, PFAS packages at $280, and well panels at $199, each with EPA-certified methods and a plain-English digital report in 5 to 7 business days.
Frequently Asked Questions
Where can I get water tested in San Jose?
KETOS KELP’s laboratory in Sunnyvale serves the South Bay with mail-in panels: order online, collect from your tap with the provided bottles, and return with the prepaid label. Reports arrive in 5 to 7 business days with each parameter benchmarked in plain English.
Should San Jose residents test for PFAS?
The region’s industrial history makes PFAS a reasonable local priority, and utility monitoring covers only a slice of the compound family. A zip-code record check followed by a tap test settles the question for your address against the 4 ppt federal limits.
How much does water testing cost in the South Bay?
Mail-in lab panels run $199 to $699 depending on scope: metals and chemistry at the low end, PFAS-inclusive panels at the top. Turnaround from the Sunnyvale lab is 5 to 7 business days.
Sources: KETOS KELP panel specifications from ketos.co; EPA National Primary Drinking Water Regulation for PFAS (2024). Checked August 20, 2026.
