Lead Pipe Map

California · population 4,282

Lead pipes in Portola Valley, CA

No lead lines reported

Most of Portola Valley (population 4,282) gets its water from California Water Service - Bear Gulch, which reported 19,291 service lines and no lead, galvanized or unknown lines.

0% of California Water Service - Bear Gulch's service lines are lead or galvanized requiring replacement, lower than the California average (0.1%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
0Unknown material
19,291Non-lead

Latest lead test for California Water Service - Bear Gulch (Jan 2022–Dec 2024): 4 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.

Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for California Water Service - Bear Gulch.

Water systems serving Portola Valley

Water systemLeadGalv.Unknown% lead
California Water Service - Bear GulchMain system0000%

Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.

Check your address in Portola Valley

The counts above cover the whole water system. To see whether your line is lead, look up your address on California Water Service - Bear Gulch's official inventory. Utilities had to make these public by October 16, 2024.

Find the official inventory mapCalifornia Water Service - Bear Gulch details

No map yet? Do the 2-minute scratch and magnet test.

Protect your drinking water

If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.

Pitcher filtersCheapest start. Pick one certified to NSF/ANSI 53 for lead, such as Brita Elite, PUR Plus or ZeroWater.See pitchers Faucet-mount filtersFilters straight from the tap. Look for NSF/ANSI 53 lead reduction on the box.See faucet filters Under-sink systemsBest for families. Carbon block (NSF 53) or reverse osmosis (NSF 58) units rated for lead.See under-sink

Choosing a lead-certified filter · Testing your water · Replacement cost

Nearby cities

Check another water system

Questions

Does Portola Valley, CA have lead pipes?

California Water Service - Bear Gulch, which serves Portola Valley, reported no lead, galvanized or unknown service lines.

Who supplies water to Portola Valley?

EPA's service area maps place most of Portola Valley in California Water Service - Bear Gulch's service area (PWSID CA4110006).

How do I check whether my Portola Valley home has a lead service line?

Search your address on California Water Service - Bear Gulch's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.

When will lead pipes in Portola Valley be replaced?

EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask California Water Service - Bear Gulch whether your street is scheduled and whether it covers the private side.