Nekoosa Waterworks, 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.
About Nekoosa Waterworks
Nekoosa Waterworks serves about 2,394 people through 1,035 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 Wood County, Wisconsin. EPA system ID: WI7720169. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2020 (0.78 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Nekoosa Waterworks is 2.5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 0.78 ppb |
| 2017 | 2.5 ppb |
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. Nekoosa Waterworks's reported as 0 (not detected) sits at the 16th percentile in Wisconsin and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
12 other systems share Wood County; 12 of them have a higher latest lead result than Nekoosa Waterworks. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Wis Rapids Water Works & Lighting Comm | 20,000 | 8.3 ppb |
| Marshfield Utilities | 18,815 | 8.2 ppb |
| Port Edwards Water Utility | 1,866 | 2.6 ppb |
| Biron Water Utility | 879 | 0.65 ppb |
| Pittsville Waterworks | 800 | 2.06 ppb |
| Vesper Waterworks | 512 | 1.1 ppb |
| Milladore Waterworks | 280 | 0.49 ppb |
| Pirco Mhp | 97 | 3.77 ppb |
| Hickory Shade | 55 | 0.45 ppb |
| Prairie Meadow Estates 1 | 50 | 1.08 ppb |
What to do in your house
Look up your address in Nekoosa Waterworks'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 Nekoosa Waterworks 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.