Blog & News

The full private-well playbook: the EPA baseline, contaminants by pathway, costs, and how to read results.

Lead varies tap to tap and hour to hour. How homes sample it right, how facilities monitor continuously, and the new 10 ppb action level.

DIY strips vs mail-in lab panels: what each can detect, prices from $15 to $549, and how to price the whole job including PFAS.

Reverse osmosis, activated carbon, and ion exchange remove PFAS; boiling and softeners do not. Test first, match treatment, verify after.

Home inspections skip water chemistry. What buyers should test on city water and wells, and how it fits the escrow window.

Five steps to settle the water question before the baby arrives, built on numbers instead of worry.

KETOS KELP’s Sunnyvale laboratory serves San Jose and Santa Clara County with mail-in panels: metals, chemistry, and PFAS.

Three steps to a real answer: read your utility’s report, check your area’s record, and measure your own tap.

City water is regulated and monitored; well water is the owner’s job. The real differences in risk and responsibility.

Once a year minimum per EPA guidance, with five events that reset the clock immediately.

Under-sink RO achieved near-complete PFAS removal in independent testing, and NSF/ANSI 58 certifies systems to 20 ppt. What that covers and how to verify yours.