Mille Lacs Island Resort, AZ
Lead detected, under the action levels
Latest 90th-percentile lead: 4 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 Mille Lacs Island Resort
Mille Lacs Island Resort serves about 400 people through 278 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Mille Lacs County, Arizona. EPA system ID: MN1480011. Ask the utility on your bill for your address in their service line inventory.
Mille Lacs Island Resort's lead record
That is up 4 ppb from 0 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Mille Lacs Island Resort is 4 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 4 ppb |
| 2021 | 0 (not detected) |
How Mille Lacs Island Resort 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. Mille Lacs Island Resort's 4 ppb sits at the 88th percentile in Arizona and the 87th nationally (higher means more lead).
Next steps for Scottsdale, AZ
Test your own tap with a certified lab first-draw sample; Scottsdale, 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 Mille Lacs Island Resort 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. The action level is dropping - the 10 ppb rule from 2027.