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 | 47.6 | 46.4 | 45.5 | 44.4 | 42.7 | 40.8 | 39.1 | 37.8 | 37.3 | 37.6 | 38.1 | 39.5 | 41.5 | 43.7 | 46 | 48.5 | 49.9 | 50.6 | 50.9 | 50.9 | 50.9 | 50.7 | 49.2 | 48.7 |
| Dodge | Horicon | ppb | 34.2 | 33.2 | 33.3 | 33.5 | 34.4 | 35.5 | 35.8 | 36.4 | 37.6 | 38.6 | 39.4 | 40.5 | 41.5 | 42.7 | 44.7 | 46.3 | 47.3 | 48.2 | 48.8 | 49 | 48.9 | 48.5 | 47.9 | 47.4 |
| Kenosha | Chiwaukee Prairie | ppb | 32.3 | 31.1 | 30.3 | 29.4 | 29.9 | 30.2 | 30 | 30.2 | 31.4 | 33.2 | 35.2 | 37.3 | 38.8 | 41 | 43.8 | 46.2 | 47.7 | 48.7 | 49.6 | 50.6 | 51.5 | 51.9 | 51.8 | 51.5 |
| Kenosha | Kenosha | ppb | 31.9 | 30.7 | 30.2 | 29.8 | 29.9 | 30 | 28.9 | 28.1 | 28.6 | 30.5 | 32.8 | 35.2 | 37.2 | 39.6 | 43.4 | 46.6 | 48.4 | 48.8 | 48.7 | 49 | 49.5 | 49.7 | 49.6 | 49.4 |