Ponderosa Park Dwid, AZ
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 11 ppb (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. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Who runs the water here
Ponderosa Park Dwid serves about 602 people through 305 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Yavapai County, Arizona. EPA system ID: AZ0413044; phone on file: 928-778-6423. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is up 5.6 ppb from 5.4 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Ponderosa Park Dwid is 45 ppb across 12 monitoring periods, 2 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 11 ppb over 10 |
| 2024 | 5.4 ppb |
| 2023 | 7.2 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 45 ppb over 15 |
| 2020 | 6.4 ppb |
| 2020 | 0 (not detected) |
| 2019 | 40 ppb over 15 |
| 2018 | 3.5 ppb |
| 2016 | 3.5 ppb |
| 2016 | 3.5 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. Ponderosa Park Dwid's 11 ppb sits at the 97th percentile in Arizona and the 98th nationally (higher means more lead).
Nearby utilities
100 other systems share Yavapai County; 3 of them have a higher latest lead result than Ponderosa Park Dwid. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Town Of Prescott Valley | 57,048 | 0 (not detected) |
| Prescott City Of | 42,217 | 0 (not detected) |
| Cottonwood Municipal Water Cw1 | 11,288 | 0 (not detected) |
| Big Park Water Company | 7,392 | 0 (not detected) |
| Town Of Camp Verde Utilities | 5,380 | 0 (not detected) |
| Clarkdale Municipal Water System | 5,201 | 0 (not detected) |
| Cottonwood Municipal Water Vv6 | 4,518 | 18 ppb |
| Cordes Lakes Water Company | 4,425 | 4.1 ppb |
| Arizona Water Co - Rimrock | 3,532 | 0 (not detected) |
| Freeport Mcmoran Bagdad Town | 3,200 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Prescott, AZ may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Ponderosa Park 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. Why sampled homes are the worst-case ones is in the guide to reading the number. This system is in the band the 2027 10 ppb rule changes.