Mcnaughton Correctional Center, WI
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2023). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Mcnaughton Correctional Center serves about 133 people through 1 service connections, which makes it a very small system under EPA's size classes. It is owned by the state and draws groundwater, in Oneida County, Wisconsin. EPA system ID: WI7440115. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2020 (0.26 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Mcnaughton Correctional Center is 0.53 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0.26 ppb |
| 2019 | 0.38 ppb |
| 2017 | 0.53 ppb |
Against other Wisconsin systems
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. Mcnaughton Correctional Center's reported as 0 (not detected) sits at the 6th percentile in Wisconsin and the 12th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
7 other systems share Oneida County; 7 of them have a higher latest lead result than Mcnaughton Correctional Center. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Rhinelander Water & Wastewater | 8,234 | 1 ppb |
| Lakeland Sanitary Dist 1 | 2,381 | 2.2 ppb |
| Three Lakes Sanitary District | 500 | 11.2 ppb |
| Northernaire Sanitary District | 315 | 2.5 ppb |
| Patricia Lake Manufactured Housing Community | 56 | 1.18 ppb |
| Fishermans Paradise Mhp | 54 | 3.09 ppb |
| Rockwood Estates | 48 | 1.14 ppb |
Your move
Look up your address in Mcnaughton Correctional Center's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Mcnaughton Correctional Center 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. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.