Gisela, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Gisela serves about 508 people through 218 service connections, which makes it a small system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Gila County, Arizona. EPA system ID: AZ0404346; phone on file: 928-478-6516. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is down 10 ppb from 10 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Gisela is 10 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 10 ppb |
| 2020 | 10 ppb |
| 2019 | 6 ppb |
| 2017 | 6 ppb |
| 2016 | 4 ppb |
How Gisela compares
Of the 730 Arizona systems with a lead result, the median latest reading is 0 ppb; 9 are over 15 ppb right now and 58 have gone over at some point. Gisela's reported as 0 (not detected) sits at the 36th percentile in Arizona and the 22nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Gila County
37 other systems share Gila County; 13 of them have a higher latest lead result than Gisela. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Payson Town Of | 17,682 | 3.5 ppb |
| Arizona Water Co - Miami Claypool | 8,616 | 0 (not detected) |
| Pine Strawberry Wid | 8,013 | 13 ppb |
| Globe City Of | 7,536 | 0.68 ppb |
| Tonto Basin Water - Lr Gardens West | 1,172 | 8.5 ppb |
| Town Of Star Valley Water Department | 1,157 | 0 (not detected) |
| Payson Water - Mesa De Caballo | 976 | 0 (not detected) |
| Hayden Town Of | 517 | 0 (not detected) |
| Tonto Basin Water Roosevelt Lake Estates | 508 | 7.5 ppb |
| Roosevelt Ranch Rv & Mhp | 430 | 0 (not detected) |
What to do in your house
Look up your address in Gisela's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Gisela whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. A zero today does not rule out a jump later - the rules are tightening in 2027.