Ash Creek Water Company, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2025-2025). 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.
Ash Creek Water Company at a glance
Ash Creek Water Company serves about 310 people through 132 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Graham County, Arizona. EPA system ID: AZ0405007; phone on file: 928-485-2451. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Ash Creek Water Company is 11 ppb across 7 monitoring periods, none of them over 15 ppb (2 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2022 | 10 ppb |
| 2021 | 3.3 ppb |
| 2018 | 11 ppb over 10 |
| 2017 | 11 ppb over 10 |
How Ash Creek Water Company 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. Ash Creek Water Company's reported as 0 (not detected) sits at the 29th percentile in Arizona and the 19th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Graham County
6 other systems share Graham County; 4 of them have a higher latest lead result than Ash Creek Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Safford City Of | 20,600 | 0 (not detected) |
| Graham County Utilities - Pima | 3,899 | 0 (not detected) |
| Usdj Fbp Fed Corr Inst Safford | 949 | 5.7 ppb |
| Adoc Aspc Fort Grant | 800 | 9.5 ppb |
| Graham County Utilities-Fort Thomas | 452 | 32 ppb |
| Eden Water Company Inc | 400 | 0.9 ppb |
What to do in your house
Look up your address in Ash Creek Water Company'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 Ash 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. A zero today does not rule out a jump later - the rules are tightening in 2027.