Alpine Dwid, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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
Alpine Dwid serves about 1,320 people through 595 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Apache County, Arizona. EPA system ID: AZ0401001; phone on file: 928-339-4631. They can tell you what your service line is made of and whether they pay to replace it.
Alpine Dwid's lead record
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Alpine Dwid is 0 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 0 (not detected) |
Where this result ranks
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. Alpine Dwid's reported as 0 (not detected) sits at the 46th percentile in Arizona and the 28th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
16 other systems share Apache County; 7 of them have a higher latest lead result than Alpine Dwid. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Eagar Town Of | 4,590 | 1.2 ppb |
| St Johns City Of | 3,500 | 0 (not detected) |
| Springerville Town Of | 1,972 | 0 (not detected) |
| Petrified Forest Np | 1,742 | 0 (not detected) |
| Cedar Grove Water Company | 1,564 | 1.4 ppb |
| Lord Az Water 2 - Winchester Trails | 1,289 | 0 (not detected) |
| Livco Water Company | 1,120 | 6 ppb |
| Aspc Apache | 540 | 5.9 ppb |
| Sanders School District | 350 | 1.5 ppb |
| Timber Knoll Dwid | 153 | 0 (not detected) |
Next steps for Alpine, AZ
Look up your address in Alpine Dwid'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 Alpine Dwid 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.