Arizona · population 44,710
Lead pipes in Sierra Vista, AZ
493 lines still unidentified
Most of Sierra Vista (population 44,710) gets its water from US Army Fort Huachuca. It reported no confirmed lead service lines, but 493 of 1,650 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of US Army Fort Huachuca's service lines are lead or galvanized requiring replacement, lower than the Arizona average (0.1%) and lower than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 0%
- Unknown 30%
- Non-lead 70%
Latest lead test for US Army Fort Huachuca (Jan 2023–Dec 2025): 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 US Army Fort Huachuca.
Water systems serving Sierra Vista
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| US Army Fort HuachucaMain system | 0 | 0 | 493 | 0% |
| Bella Vista City Water SystemAlso serves parts of the city | 0 | 3 | 5,976 | <0.1% |
| Pueblo del Sol Water CompanyAlso serves parts of the city | 0 | 0 | 0 | 0% |
| Arizona Water Co - Sierra VistaAlso serves parts of the city | 0 | 0 | 2,897 | 0% |
| Bella Vista Water SouthAlso serves parts of the city | 0 | 0 | 225 | 0% |
| East Slope Water CompanyAlso serves parts of the city | 0 | 0 | 798 | 0% |
| Southland Utilities - Golden AcresAlso serves parts of the city | 0 | 0 | 650 | 0% |
| Southern Sunrise WC Cochise HorseshoeAlso serves parts of the city | 0 | 0 | 126 | 0% |
| East Slope Water - WestAlso serves parts of the city | 0 | 0 | 263 | 0% |
| Northern Sunrise WC Mustang CrystalAlso serves parts of the city | 0 | 0 | 49 | 0% |
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 Sierra Vista
The counts above cover the whole water system. To see whether your line is lead, look up your address on US Army Fort Huachuca's official inventory. Utilities had to make these public by October 16, 2024.
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.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
Check another water system
Questions
Does Sierra Vista, AZ have lead pipes?
None are confirmed, but US Army Fort Huachuca still lists 493 service lines as unknown material.
Who supplies water to Sierra Vista?
EPA's service area maps place most of Sierra Vista in US Army Fort Huachuca's service area (PWSID AZ0402078). Bella Vista City Water System, Pueblo del Sol Water Company, Arizona Water Co - Sierra Vista, Bella Vista Water South, East Slope Water Company, Southland Utilities - Golden Acres, Southern Sunrise WC Cochise Horseshoe, East Slope Water - West, Northern Sunrise WC Mustang Crystal also serve parts of the city or nearby areas.
How do I check whether my Sierra Vista home has a lead service line?
Search your address on US Army Fort Huachuca'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 Sierra Vista 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 US Army Fort Huachuca whether your street is scheduled and whether it covers the private side.