Petrified Forest Np, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). 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.
Petrified Forest Np at a glance
Petrified Forest Np serves about 1,742 people through 58 service connections, which makes it a small system under EPA's size classes. It is federally owned and draws groundwater, in Apache County, Arizona. EPA system ID: AZ0401704; phone on file: 928-524-6228. They can tell you what your service line is made of and whether they pay to replace it.
Petrified Forest Np's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Petrified Forest Np is 1.9 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2023 | 1.2 ppb |
| 2022 | 1.9 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. Petrified Forest Np's reported as 0 (not detected) sits at the 49th percentile in Arizona and the 30th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Apache County
16 other systems share Apache County; 7 of them have a higher latest lead result than Petrified Forest Np. 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) |
| Cedar Grove Water Company | 1,564 | 1.4 ppb |
| Alpine Dwid | 1,320 | 0 (not detected) |
| 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 Petrified Forest, AZ
Look up your address in Petrified Forest Np'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 Petrified Forest Np 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.