Advisories:
.png)
| County | Site | Units | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ashland | Bad River | ppb | 34.8 | 33.9 | 33 | 31.6 | 30.7 | 30.2 | 29.5 | 29.8 | 30.5 | 31.2 | 32.6 | 34.9 | 37.3 | 40 | 43.1 | 45.4 | 46.9 | 48.3 | 49 | 49.2 | 49.1 | 49.2 | 49 | 48.2 |
| Dodge | Horicon | ppb | 30.8 | 29.2 | 28.2 | 27.4 | 26.3 | 25.1 | 23.9 | 23.1 | 22.9 | 23.8 | 25.3 | 27.2 | 29.7 | 32 | 34.6 | 37.4 | 39.7 | 40.9 | 40.5 | 39.8 | 38.8 | 37.9 | 36.8 | 35.6 |
| Kenosha | Chiwaukee Prairie | ppb | 38.6 | 36.7 | 34.7 | 32.6 | 31.4 | 29.3 | 27.6 | 26.4 | 26.1 | 26.9 | 28.4 | 30.5 | 32 | 34.5 | 35 | 37.2 | 38.6 | 39.1 | 38.6 | 37.7 | 36.1 | 34.6 | 35.1 | 33.7 |
| Kenosha | Kenosha | ppb | 36.1 | 34.3 | 32.3 | 30.2 | 27.5 | 25 | 23.1 | 21.8 | 21.4 | 21.9 | 23.4 | 25.3 | 28.3 | 31.6 | 34.6 | 37.3 | 39.2 | 40.1 | 39.6 | 38.9 | 37.5 | 35.8 | 34.4 | 33.2 |