Lead Pipe Map

Iowa · population 4,148

Lead pipes in Jefferson, IA

221 lead or galvanized lines to replace

Most of Jefferson (population 4,148) gets its water from Jefferson Water Department. That system reported 7 lead and 214 galvanized-requiring-replacement service lines out of 2,068, with 386 more of unknown material.

11% of Jefferson Water Department's service lines are lead or galvanized requiring replacement, higher than the Iowa average (5.6%) and higher than the national average (3.1%).

7Lead
214Galvanized, replace
386Unknown material
1,461Non-lead

Latest lead test for Jefferson Water Department (Jan 2023–Dec 2025): 0.8 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 Jefferson Water Department.

Water systems serving Jefferson

Water systemLeadGalv.Unknown% lead
Jefferson Water DepartmentMain system721438611%
Xenia RWD (North)Serves nearby areas21800.7%

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 Jefferson

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

Find the official inventory mapJefferson 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 Jefferson, IA have lead pipes?

Yes. Jefferson Water Department, which serves Jefferson, reported 7 lead and 214 galvanized-requiring-replacement service lines, plus 386 of unknown material.

Who supplies water to Jefferson?

EPA's service area maps place most of Jefferson in Jefferson Water Department's service area (PWSID IA3742004). Xenia RWD (North) also serves parts of the city or nearby areas.

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

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