Lake Juniper County Improvement District, AZ
Lead detected, under the action levels
Latest 90th-percentile lead: 3.8 ppb (monitoring period 2025-2025). 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.
Lake Juniper County Improvement District at a glance
Lake Juniper County Improvement District serves about 63 people through 27 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Mohave County, Arizona. EPA system ID: AZ0408145; phone on file: 928-757-0914. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is up 3.8 ppb from 0 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Lake Juniper County Improvement District is 13 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3.8 ppb |
| 2024 | 0 (not detected) |
| 2023 | 13 ppb over 10 |
How Lake Juniper County Improvement District compares
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. Lake Juniper County Improvement District's 3.8 ppb sits at the 88th percentile in Arizona and the 86th nationally (higher means more lead).
Nearby utilities
49 other systems share Mohave County; 5 of them have a higher latest lead result than Lake Juniper County 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 |
| Golden Valley Improvement District | 3,950 | 0 (not detected) |
| Epcor - Willow Valley/King Street | 3,566 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Kingman, 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 Lake Juniper County 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. The action level is dropping - the 10 ppb rule from 2027.