Lead Pipe Map

Texas · population 37,341

Lead pipes in San Juan, TX

81 lines still unidentified

Most of San Juan (population 37,341) gets its water from City of San Juan. It reported no confirmed lead service lines, but 81 of 7,787 lines are still listed as unknown material, so lead hasn't been ruled out.

0% of City of San Juan's service lines are lead or galvanized requiring replacement, lower than the Texas average (1.2%) and lower than the national average (3.1%).

0Lead
0Galvanized, replace
81Unknown material
7,706Non-lead

Latest lead test for City of San Juan (Jan 2024–Dec 2026): not detected at the 90th percentile, against a 15 ppb federal action level. Full test history.

Compliance record: EPA lists 1 Lead and Copper Rule violation since 2015 for City of San Juan.

Water systems serving San Juan

Water systemLeadGalv.Unknown% lead
City of San JuanMain system00810%
North Alamo WSCServes nearby areas010<0.1%

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 San Juan

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

Find the official inventory mapCity of San Juan 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 San Juan, TX have lead pipes?

None are confirmed, but City of San Juan still lists 81 service lines as unknown material.

Who supplies water to San Juan?

EPA's service area maps place most of San Juan in City of San Juan's service area (PWSID TX1080010). North Alamo WSC also serves parts of the city or nearby areas.

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

Search your address on City of San Juan'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 San Juan 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 City of San Juan whether your street is scheduled and whether it covers the private side.