Lead Pipe Map

California · population 12,807

Lead pipes in Larkspur, CA

No lead lines reported

Most of Larkspur (population 12,807) gets its water from Marin Municipal Water District, which reported 63,060 service lines and no lead, galvanized or unknown lines.

0% of Marin Municipal Water District'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
63,060Non-lead

Latest lead test for Marin Municipal Water District (Jan 2019–Dec 2021): not detected 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 Marin Municipal Water District.

Water systems serving Larkspur

Water systemLeadGalv.Unknown% lead
Marin Municipal Water DistrictMain 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 Larkspur

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

Find the official inventory mapMarin Municipal Water District 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 Larkspur, CA have lead pipes?

Marin Municipal Water District, which serves Larkspur, reported no lead, galvanized or unknown service lines.

Who supplies water to Larkspur?

EPA's service area maps place most of Larkspur in Marin Municipal Water District's service area (PWSID CA2110002).

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

Search your address on Marin Municipal Water District'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 Larkspur 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 Marin Municipal Water District whether your street is scheduled and whether it covers the private side.