Lead Pipe Map

California · population 124,229

Lead pipes in Thousand Oaks, CA

No lead lines reported

Most of Thousand Oaks (population 124,229) gets its water from Cal American Water Co, which reported 20,443 service lines and no lead, galvanized or unknown lines.

0% of Cal American Water Co'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
20,443Non-lead

Latest lead test for Cal American Water Co (Jan 2022–Dec 2024): 3 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 Cal American Water Co.

Water systems serving Thousand Oaks

Water systemLeadGalv.Unknown% lead
Cal American Water CoMain system0000%
City of Thousand Oaks Water DepartmentServes nearby areas0000%

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 Thousand Oaks

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

Find the official inventory mapCal American Water Co 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 Thousand Oaks, CA have lead pipes?

Cal American Water Co, which serves Thousand Oaks, reported no lead, galvanized or unknown service lines.

Who supplies water to Thousand Oaks?

EPA's service area maps place most of Thousand Oaks in Cal American Water Co's service area (PWSID CA5610040). City of Thousand Oaks Water Department also serves parts of the city or nearby areas.

How do I check whether my Thousand Oaks home has a lead service line?

Search your address on Cal American Water Co'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 Thousand Oaks 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 Cal American Water Co whether your street is scheduled and whether it covers the private side.