Arizona Water Co - Pinal Valley, 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.
Arizona Water Co - Pinal Valley at a glance
Arizona Water Co - Pinal Valley serves about 134,432 people through 38,340 service connections, which makes it a very large system under EPA's size classes. It is privately owned and draws groundwater, in Pinal County, Arizona. EPA system ID: AZ0411009; phone on file: 602-206-3765. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Arizona Water Co - Pinal Valley is 1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 1 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. Arizona Water Co - Pinal Valley's reported as 0 (not detected) sits at the 67th percentile in Arizona and the 40th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
61 other systems share Pinal County; 16 of them have a higher latest lead result than Arizona Water Co - Pinal Valley. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Epcor - San Tan | 87,435 | 0 (not detected) |
| Gw Santa Cruz Water Co | 84,000 | 0 (not detected) |
| Arizona Water Co - Apache Junction | 62,055 | 0 (not detected) |
| Lago Del Oro Water Company | 18,132 | 0 (not detected) |
| Apache Junction Water District | 15,610 | 0 (not detected) |
| Florence Water Company | 14,593 | 0 (not detected) |
| Arizona Water Co - Oracle | 10,585 | 0 (not detected) |
| Epcor - San Tan Anthem | 10,362 | 0 (not detected) |
| Eloy City Of | 8,999 | 1.8 ppb |
| Cca - Eloy Complex | 8,852 | 2.3 ppb |
What to do in your house
Look up your address in Arizona Water Co - Pinal Valley'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 Arizona Water Co - Pinal Valley 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.