Rollingstone, MN
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (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. 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 Rollingstone
Rollingstone serves about 664 people through 243 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Winona County, Minnesota. EPA system ID: MN1850008; phone on file: 5076894110. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
The highest 90th-percentile result EPA holds for Rollingstone is 1 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 1 ppb |
Where this result ranks
Of the 966 Minnesota systems with a lead result, the median latest reading is 0 ppb; 7 are over 15 ppb right now and 48 have gone over at some point. Rollingstone's 1 ppb sits at the 59th percentile in Minnesota and the 53rd nationally (higher means more lead).
Other water systems in Winona County
11 other systems share Winona County; 5 of them have a higher latest lead result than Rollingstone. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Winona | 27,782 | 2 ppb |
| Goodview | 4,158 | 1 ppb |
| Saint Charles | 3,825 | 0 (not detected) |
| Lewiston | 1,512 | 0 (not detected) |
| Stockton | 697 | 3 ppb |
| Altura | 493 | 5 ppb |
| Hidden Valley Mobile Home Park | 464 | 0 (not detected) |
| Utica | 293 | 1 ppb |
| Elba | 146 | 2 ppb |
| Green Terrace Mobile Estates | 86 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Rollingstone, MN 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 Rollingstone 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.