Lead Pipe Map

California · population 37,650

Lead pipes in Montclair, CA

No lead lines reported

Most of Montclair (population 37,650) gets its water from Monte Vista WD, which reported 12,657 service lines and no lead, galvanized or unknown lines.

0% of Monte Vista WD'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
12,657Non-lead

Latest lead test for Monte Vista WD (Jan 2023–Dec 2025): 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 Monte Vista WD.

Water systems serving Montclair

Water systemLeadGalv.Unknown% lead
Monte Vista WDMain system0000%
Pomona - City, Water Dept.Serves 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 Montclair

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

Find the official inventory mapMonte Vista WD 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 Montclair, CA have lead pipes?

Monte Vista WD, which serves Montclair, reported no lead, galvanized or unknown service lines.

Who supplies water to Montclair?

EPA's service area maps place most of Montclair in Monte Vista WD's service area (PWSID CA3610029). Pomona - City, Water Dept. also serves parts of the city or nearby areas.

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

Search your address on Monte Vista WD'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 Montclair 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 Monte Vista WD whether your street is scheduled and whether it covers the private side.