Lead Pipe Map

Massachusetts · population 65,849

Lead pipes in Waltham, MA

No lead lines reported

Most of Waltham (population 65,849) gets its water from Waltham Water Department, which reported 14,226 service lines and no lead, galvanized or unknown lines.

0% of Waltham Water Department's service lines are lead or galvanized requiring replacement, lower than the Massachusetts average (2.2%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
0Unknown material
14,226Non-lead

Latest lead test for Waltham Water Department (2025): 1.9 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.

Compliance record: EPA lists 2 Lead and Copper Rule violations since 2015, 1 still open for Waltham Water Department.

Water systems serving Waltham

Water systemLeadGalv.Unknown% lead
Waltham Water DepartmentMain system0000%
Weston Water Dept.Serves nearby areas003430%

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 Waltham

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

Find the official inventory mapWaltham Water Department 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 Waltham, MA have lead pipes?

Waltham Water Department, which serves Waltham, reported no lead, galvanized or unknown service lines.

Who supplies water to Waltham?

EPA's service area maps place most of Waltham in Waltham Water Department's service area (PWSID MA3308000). Weston Water Dept. also serves parts of the city or nearby areas.

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

Search your address on Waltham Water Department'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 Waltham 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 Waltham Water Department whether your street is scheduled and whether it covers the private side.