De Pere Waterworks Sa 2, WI
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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
De Pere Waterworks Sa 2 serves about 118 people through 43 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 surface water, in Brown County, Wisconsin. EPA system ID: WI4052638. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2024 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for De Pere Waterworks Sa 2 is 0 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
Where this result ranks
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. De Pere Waterworks Sa 2's reported as 0 (not detected) sits at the 6th percentile in Wisconsin and the 11th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
21 other systems share Brown County; 16 of them have a higher latest lead result than De Pere Waterworks Sa 2. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Green Bay Waterworks | 107,369 | 2.5 ppb |
| De Pere Waterworks Sa 1 | 25,660 | 0.66 ppb |
| Howard Waterworks | 21,133 | 1.2 ppb |
| Ashwaubenon Waterworks | 17,730 | 3.4 ppb |
| Bellevue Waterworks | 16,715 | 2.7 ppb |
| Allouez Waterworks | 13,923 | 5.9 ppb |
| Ledgeview Tn Sanitary Dist 2 | 7,602 | 2.1 ppb |
| Lawrence Waterworks | 5,398 | 0 (not detected) |
| Suamico Waterworks | 4,697 | 1.1 ppb |
| Pulaski Waterworks | 4,040 | 0.81 ppb |
Next steps for De Pere, WI
Look up your address in De Pere Waterworks Sa 2'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 De Pere Waterworks Sa 2 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. A zero today does not rule out a jump later - the rules are tightening in 2027.