North Mohave Valley, AZ
Above the federal action level
Latest 90th-percentile lead: 22 ppb (monitoring period 2024-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
About North Mohave Valley
North Mohave Valley serves about 5,190 people through 2,218 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: AZ0408068; phone on file: 928-763-9400. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 20.7 ppb from 1.3 ppb in the period ending 2026. The highest 90th-percentile result EPA holds for North Mohave Valley is 22 ppb across 5 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 22 ppb over 15 |
| 2026 | 1.3 ppb |
| 2023 | 1.3 ppb |
| 2020 | 9.5 ppb |
| 2017 | 2.3 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. North Mohave Valley's 22 ppb sits at the 99th percentile in Arizona and the 99th nationally (higher means more lead).
Neighbouring systems
49 other systems share Mohave County; 0 of them have a higher latest lead result than North Mohave Valley. 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 |
| Epcor - Lake Havasu | 4,712 | 0 (not detected) |
| Golden Shores Water Company | 3,970 | 1.7 ppb |
| Golden Valley Improvement District | 3,950 | 0 (not detected) |
| Epcor - Willow Valley/King Street | 3,566 | 0 (not detected) |
| Az State Prison - Geo Group - Kingman | 3,500 | 1.3 ppb |
Next steps for Bullhead City, AZ
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask North Mohave 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.