Arizona · population 3,148
Lead pipes in Pima, AZ
483 lines still unidentified
Most of Pima (population 3,148) gets its water from Graham County Utilities - Pima. It reported no confirmed lead service lines, but 483 of 1,860 lines are still listed as unknown material, so lead hasn't been ruled out.
0% of Graham County Utilities - Pima'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 26%
- Non-lead 74%
Latest lead test for Graham County Utilities - Pima (Jan 2022–Dec 2024): 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, 1 still open for Graham County Utilities - Pima.
Water systems serving Pima
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Graham County Utilities - PimaMain system | 0 | 0 | 483 | 0% |
| Eden Water Company INCServes nearby areas | 0 | 0 | 94 | 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 Pima
The counts above cover the whole water system. To see whether your line is lead, look up your address on Graham County Utilities - Pima'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 Pima, AZ have lead pipes?
None are confirmed, but Graham County Utilities - Pima still lists 483 service lines as unknown material.
Who supplies water to Pima?
EPA's service area maps place most of Pima in Graham County Utilities - Pima's service area (PWSID AZ0405002). Eden Water Company INC also serves parts of the city or nearby areas.
How do I check whether my Pima home has a lead service line?
Search your address on Graham County Utilities - Pima'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 Pima 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 Graham County Utilities - Pima whether your street is scheduled and whether it covers the private side.