Grandview Water Company, AZ
Lead detected, under the action levels
Latest 90th-percentile lead: 1.1 ppb (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Grandview Water Company
Grandview Water Company serves about 50 people through 20 service connections, which makes it a very small system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Maricopa County, Arizona. EPA system ID: AZ0407039; phone on file: 602-469-6253. They can tell you what your service line is made of and whether they pay to replace it.
Grandview Water Company's lead record
That is down 2.2 ppb from 3.3 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Grandview Water Company is 3.6 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 1.1 ppb |
| 2020 | 3.3 ppb |
| 2019 | 3.6 ppb |
| 2019 | 1.9 ppb |
| 2018 | 3.3 ppb |
| 2017 | 1.9 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. Grandview Water Company's 1.1 ppb sits at the 76th percentile in Arizona and the 56th nationally (higher means more lead).
Neighbouring systems
99 other systems share Maricopa County; 20 of them have a higher latest lead result than Grandview Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Phoenix City Of | 1,695,000 | 2.74 ppb |
| Mesa City Of | 466,000 | 5.01 ppb |
| Gilbert, Town Of | 247,600 | 0 (not detected) |
| Chandler City Of | 247,328 | 1.4 ppb |
| Scottsdale City Of | 241,361 | 2.3 ppb |
| Glendale City Of | 234,766 | 2.11 ppb |
| Peoria City Of | 187,676 | 0 (not detected) |
| Tempe City Of | 165,000 | 4.4 ppb |
| Epcor - Agua Fria | 128,040 | 0 (not detected) |
| Avondale City Of | 96,130 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; Buckeye, 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 Grandview Water Company 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. Size matters more than most people expect: small vs large water systems.