Lead Pipe Map

Wisconsin · population 285,300

Lead pipes in Madison, WI

2 lead or galvanized lines to replace

Most of Madison (population 285,300) gets its water from Madison Water Utility. That system reported 2 lead and 0 galvanized-requiring-replacement service lines out of 65,536, with 0 more of unknown material.

<0.1% of Madison Water Utility's service lines are lead or galvanized requiring replacement, lower than the Wisconsin average (11%) and lower than the national average (3.1%).

2Lead
0Galvanized, replace
0Unknown material
65,534Non-lead

Latest lead test for Madison Water Utility (Jun 2023–Sep 2023): 1.8 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 Madison Water Utility.

Water systems serving Madison

Water systemLeadGalv.Unknown% lead
Madison Water UtilityMain system200<0.1%
Lake Forest Water CoopAlso serves parts of the city5005.3%
Mendota Mental Health InstAlso serves parts of the city0000%
Shorewood Hills WaterworksAlso serves parts of the city005860%
Maple Bluff WaterworksAlso serves parts of the city0000%

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 Madison

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

Find the official inventory mapMadison Water Utility 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 Madison, WI have lead pipes?

Yes. Madison Water Utility, which serves Madison, reported 2 lead and 0 galvanized-requiring-replacement service lines, plus 0 of unknown material.

Who supplies water to Madison?

EPA's service area maps place most of Madison in Madison Water Utility's service area (PWSID WI1130224). Lake Forest Water Coop, Mendota Mental Health Inst, Shorewood Hills Waterworks, Maple Bluff Waterworks also serve parts of the city or nearby areas.

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

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