Golden Valley Improvement District, AZ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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.
Golden Valley Improvement District at a glance
Golden Valley Improvement District serves about 3,950 people through 1,700 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Mohave County, Arizona. EPA system ID: AZ0408081; phone on file: 928-757-0910. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2020 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Golden Valley Improvement District is 0 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
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. Golden Valley Improvement District's reported as 0 (not detected) sits at the 55th percentile in Arizona and the 34th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Mohave County
49 other systems share Mohave County; 27 of them have a higher latest lead result than Golden Valley Improvement District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lake Havasu City Of | 54,610 | 3.1 ppb |
| Kingman Municipal Water | 45,000 | 0 (not detected) |
| Bullhead City Mohave | 36,330 | 0 (not detected) |
| Bermuda Water Company Inc | 25,000 | 5.6 ppb |
| Valley Pioneers Water Company Inc | 6,263 | 1.5 ppb |
| North Mohave Valley | 5,190 | 22 ppb |
| Epcor - Lake Havasu | 4,712 | 0 (not detected) |
| Golden Shores Water Company | 3,970 | 1.7 ppb |
| Epcor - Willow Valley/King Street | 3,566 | 0 (not detected) |
| Az State Prison - Geo Group - Kingman | 3,500 | 1.3 ppb |
Next steps for Kingman, AZ
Look up your address in Golden Valley Improvement District'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 Golden Valley Improvement District 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. A zero today does not rule out a jump later - the rules are tightening in 2027.