Lead Pipe Map

Iowa · population 5,420

Lead pipes in Red Oak, IA

38 lines still unidentified

Most of Red Oak (population 5,420) gets its water from Red Oak Water Supply. It reported no confirmed lead service lines, but 38 of 2,300 lines are still listed as unknown material, so lead hasn't been ruled out.

0% of Red Oak Water Supply's service lines are lead or galvanized requiring replacement, lower than the Iowa average (5.6%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
38Unknown material
2,262Non-lead

Latest lead test for Red Oak Water Supply (Jan 2023–Dec 2025): 2.7 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 Red Oak Water Supply.

Water systems serving Red Oak

Water systemLeadGalv.Unknown% lead
Red Oak Water SupplyMain system00380%
Southwest Reg Water District (Red Oak)Also serves parts of the city209510.2%

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 Red Oak

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

Find the official inventory mapRed Oak Water Supply 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 Red Oak, IA have lead pipes?

None are confirmed, but Red Oak Water Supply still lists 38 service lines as unknown material.

Who supplies water to Red Oak?

EPA's service area maps place most of Red Oak in Red Oak Water Supply's service area (PWSID IA6950075). Southwest Reg Water District (Red Oak) also serves parts of the city or nearby areas.

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

Search your address on Red Oak Water Supply'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 Red Oak 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 Red Oak Water Supply whether your street is scheduled and whether it covers the private side.