Wenden Dwid, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
About Wenden Dwid
Wenden Dwid serves about 360 people through 235 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in La Paz County, Arizona. EPA system ID: AZ0415023; phone on file: 928-859-3881. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2022 (0.6 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Wenden Dwid is 4.4 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0.6 ppb |
| 2019 | 2.8 ppb |
| 2016 | 4.4 ppb |
| 2016 | 4.4 ppb |
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. Wenden Dwid's reported as 0 (not detected) sits at the 31st percentile in Arizona and the 20th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
18 other systems share La Paz County; 5 of them have a higher latest lead result than Wenden Dwid. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Quartzsite Town Of | 2,761 | 9.9 ppb |
| Epcor - Lakeside | 1,775 | 0 (not detected) |
| Epcor - Moovalya Keys | 1,298 | 6.2 ppb |
| Ehrenberg Improvement District | 989 | 1.5 ppb |
| Epcor - Holiday Harbor | 559 | 0 (not detected) |
| Epcor - Marina Village | 528 | 0 (not detected) |
| 88 Shades Rv Park | 488 | 0 (not detected) |
| Hillcrest Water Company | 459 | 6 ppb |
| Q Mountain Vista Mhp | 440 | 2.9 ppb |
| Epcor - Parker Dam | 429 | 0 (not detected) |
Next steps for Wenden, AZ
Look up your address in Wenden 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 Wenden 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.