Manitou Falls Sanitary District No 1, WI
Exceeded the action level in the past
Latest 90th-percentile lead: 6.3 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Manitou Falls Sanitary District No 1 serves about 95 people through 35 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Douglas County, Wisconsin. EPA system ID: WI8160145. Ask the utility on your bill for your address in their service line inventory.
Manitou Falls Sanitary District No 1's lead record
That is up 5 ppb from 1.3 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for Manitou Falls Sanitary District No 1 is 49.45 ppb across 4 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 6.3 ppb |
| 2023 | 1.3 ppb |
| 2022 | 49.45 ppb over 15 |
| 2017 | 5.25 ppb |
How Manitou Falls Sanitary District No 1 compares
Of the 947 Wisconsin systems with a lead result, the median latest reading is 1.33 ppb; 6 are over 15 ppb right now and 71 have gone over at some point. Manitou Falls Sanitary District No 1's 6.3 ppb sits at the 92nd percentile in Wisconsin and the 94th nationally (higher means more lead).
Neighbouring systems
3 other systems share Douglas County; 0 of them have a higher latest lead result than Manitou Falls Sanitary District No 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Superior Water Light & Power Company | 26,084 | 2.9 ppb |
| Middle River Health And Rehab Center | 200 | 2.8 ppb |
| Gordon Correctional Center | 124 | 4.9 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Superior, WI 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 Manitou Falls Sanitary District No 1 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. More in what a past exceedance means today.