Hidalgo County, TX · PWSID TX1080029
North Alamo WSC lead service lines
1 lead or galvanized lines to replace
North Alamo WSC reported 0 lead and 1 galvanized-requiring-replacement service lines out of 54,810 in its inventory. That's about 1 in 54,810 lines. Another 0 (0%) are still listed as unknown material.
Ranks #499 of 534 Texas systems with confirmed lead lines, and #6,665 nationally.
<0.1% of North Alamo WSC's service lines are lead or galvanized requiring replacement. That's lower than the Texas average (1.2%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) <0.1%
- Unknown 0%
- Non-lead 100%
Total service lines reported: 54,810. Reported all required service line types. Population served: 171,195; 57,065 connections.
Lead test results
North Alamo WSC's most recent 90th-percentile lead result (Jan 2024–Dec 2026) was 0.3 ppb, below both the 15 ppb action level and the 10 ppb level that takes effect in 2027. This means 90% of homes sampled were at or below that level; individual homes, especially those with lead lines, can be higher.
Lead and Copper Rule 90th-percentile results reported to EPA, in parts per billion. Dashed lines: 15 ppb action level and the 10 ppb level from November 1, 2027.
Progress since 2025 Q1
Reported lead and galvanized-requiring-replacement lines went from 7 in 2025 Q1 to 1 in 2026 Q3: down 6 (86%). Lines of unknown material went from 10,260 to 0, down 10,260 (100%).
Quarterly counts reported to EPA. A drop usually means lines were replaced or confirmed non-lead; a rise usually means more lines were identified. Replacement progress rankings.
Lead rule violations
EPA's data lists 2 Lead and Copper Rule violations since 2015 for North Alamo WSC. Health-based violations are treatment failures, such as corrosion control or public education; the rest are missed monitoring or reporting.
| Began | Violation | Status |
|---|---|---|
| Mar 2024 | Lead consumer notice not delivered or reported | Returned to compliance |
| Oct 2015 | Missed follow-up or routine lead and copper tap sampling | Returned to compliance |
Source: EPA SDWIS violation records for the Lead and Copper Rule.
Where the water comes from
North Alamo WSC's main water source is surface water (rivers, lakes or reservoirs). It buys treated water from City of Edinburg, City of Raymondville, City of Mercedes, City of Weslaco. The seller treats the water, including corrosion control that keeps lead from dissolving out of pipes, while North Alamo WSC is responsible for its own service line inventory and replacement program. It sells water to 12 other water systems: City of Primera, City of Edcouch, City of Edinburg, City of Elsa, City of Mercedes, City of San Juan, City of la Villa, Quiet Village II, Military Hwy WSC Progreso, City of Lyford, Sebastian MUD, Port Mansfield PUD.
Source: EPA SDWIS water system and facility records.
Check your own address
These counts cover the whole system. To see whether your line is lead, use the utility's address-level inventory. Utilities had to prepare one by October 16, 2024 and make it publicly accessible; systems serving more than 50,000 people must post it online.
No map yet? Do the 2-minute scratch and magnet test on the pipe where water enters your home.
Protect your drinking water now
If your line is lead, galvanized or unknown, filter water for drinking, cooking and baby formula. Use a filter certified to NSF/ANSI 53 for lead. Run cold water for a few minutes after it sits for hours, and never use hot tap water for cooking.
How to pick a lead-certified filter · How to test your water for lead
Getting the line replaced
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask North Alamo WSC whether it replaces the private side for free or with a cost share before you hire anyone. If you want it done sooner, or your utility doesn't cover your side, a licensed plumber can quote it. What replacement costs.
County pages: Lead pipes in Hidalgo County
Cities served
ZIP codes served
ZIP codes whose center falls inside North Alamo WSC's mapped service area (EPA service area boundaries). Neighboring utilities may serve parts of the same ZIP.
78538785407854978558785617856278569785707858078590785937859478599
Other water systems nearby
| System | Lead + galv. | Unknown |
|---|---|---|
| McAllen Public Utility | 121 | 0 |
| City of Edinburg | 76 | 0 |
| City of Pharr | 54 | 952 |
| City of Mission | 2 | 34,548 |
| City of Donna | 0 | 1,404 |
| Military Hwy WSC Las Rusias | 0 | 1,045 |
| City of Mercedes | 0 | 872 |
| Military Hwy WSC Progreso | 0 | 794 |
Check another water system
Questions
Does North Alamo WSC have lead pipes?
Yes. North Alamo WSC reported 0 lead service lines and 1 galvanized lines that must be replaced, out of 54,810 total. 0 more are of unknown material.
How do I check if my home's service line is lead?
Look up your address on North Alamo WSC's official service line inventory, which utilities must make publicly available. You can also scratch the pipe where it enters your home: lead is soft, dull gray, scratches to shiny silver and does not attract a magnet.
When will North Alamo WSC replace lead service lines?
Under EPA's Lead and Copper Rule Improvements, most systems must replace lead and galvanized-requiring-replacement lines by December 31, 2037, starting from November 1, 2027. The rule is being challenged in court, so dates could change. Many utilities run free or cost-share programs now.
Has North Alamo WSC had lead violations?
EPA's data shows 2 Lead and Copper Rule violations since 2015 for North Alamo WSC.
Which water filters remove lead?
Use a filter certified to NSF/ANSI Standard 53 for lead reduction, or NSF/ANSI 58 for reverse osmosis. Check the certification on NSF's listings, not just the box.
Embed or cite this data
Local news sites, blogs and community groups can embed this card. It updates when EPA releases new data.
Citation: Lead Pipe Map, "North Alamo WSC lead service lines," https://leadpipemap.com/tx/north-alamo-wsc/. Source: EPA SDWIS service line inventory, 2026 Q3. Download the full dataset on the data page.