Lead Pipe Map

California · population 83,633

Lead pipes in Hawthorne, CA

No lead lines reported

Most of Hawthorne (population 83,633) gets its water from Hawthorne-City Water Dept., which reported 6,553 service lines and no lead, galvanized or unknown lines.

0% of Hawthorne-City Water Dept.'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
6,553Non-lead

Latest lead test for Hawthorne-City Water Dept. (Jan 2024–Dec 2026): 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 Hawthorne-City Water Dept..

Water systems serving Hawthorne

Water systemLeadGalv.Unknown% lead
Hawthorne-City Water Dept.Main system0000%
GSWC - SouthwestServes 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 Hawthorne

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

Find the official inventory mapHawthorne-City Water Dept. 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 Hawthorne, CA have lead pipes?

Hawthorne-City Water Dept., which serves Hawthorne, reported no lead, galvanized or unknown service lines.

Who supplies water to Hawthorne?

EPA's service area maps place most of Hawthorne in Hawthorne-City Water Dept.'s service area (PWSID CA1910047). GSWC - Southwest also serves parts of the city or nearby areas.

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

Search your address on Hawthorne-City Water Dept.'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 Hawthorne 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 Hawthorne-City Water Dept. whether your street is scheduled and whether it covers the private side.