Advisories:
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| 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 | 26.8 | 23.3 | 19.9 | 17.8 | 17.2 | 18.6 | 20.7 | 23.2 | 26.1 | 28.9 | 31.7 | 34.5 | 37.1 | 38 | 38.5 | 39 | 39.6 | 40 | 40.2 | 40.4 | 40.1 | 39 | 37.5 | 35.8 |
| Dodge | Horicon | ppb | 38.7 | 38.3 | 38.2 | 38.5 | 38.7 | 38.4 | 38.2 | 37.9 | 37.4 | 36.8 | 36.2 | 35.8 | 35.4 | 35.3 | 35.4 | 35.7 | 36.4 | 37 | 36.9 | 36.3 | 35.5 | 34.8 | 33.7 | 32.3 |
| Kenosha | Chiwaukee Prairie | ppb | 44.9 | 44.9 | 44.8 | 44.7 | 44.2 | 43.1 | 41.7 | 40.4 | 39.2 | 38.1 | 36.9 | 35.8 | 35 | 34.7 | 35.6 | 36.6 | 37.6 | 38.9 | 40.2 | 41.2 | 42.2 | 42.4 | 41.6 | 40.2 |
| Kenosha | Kenosha | ppb | 39.8 | 39.4 | 39 | 39.2 | 39.4 | 39.1 | 38.1 | 36.6 | 35.5 | 34.8 | 34 | 32.9 | 32.2 | 32 | 33 | 34.5 | 35.7 | 36.9 | 38.1 | 39.1 | 39.9 | 40.1 | 39.2 | 37.7 |