Tonto Creek Water Company, AZ
Above the federal action level
Latest 90th-percentile lead: 23 ppb (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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
About Tonto Creek Water Company
Tonto Creek Water Company serves about 190 people through 79 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Gila County, Arizona. EPA system ID: AZ0404021; phone on file: 623-691-0567. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Tonto Creek Water Company's lead record
That is up 18.9 ppb from 4.1 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Tonto Creek Water Company is 23 ppb across 6 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 23 ppb over 15 |
| 2022 | 4.1 ppb |
| 2020 | 8 ppb |
| 2019 | 13 ppb over 10 |
| 2017 | 11 ppb over 10 |
| 2016 | 4.5 ppb |
Against other Arizona systems
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. Tonto Creek Water Company's 23 ppb sits at the 99th percentile in Arizona and the 99th nationally (higher means more lead).
Other water systems in Gila County
37 other systems share Gila County; 0 of them have a higher latest lead result than Tonto Creek Water Company. 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 |
| Gisela | 508 | 0 (not detected) |
What to do in your house
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Tonto Creek Water Company 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. Systems that went over once often dip back under; here is what that means.