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 Tribal School | ppb | 14.3 | 11 | 7.8 | 4.7 | 2.7 | 1.7 | 1 | 0.9 | 1.4 | 4.2 | 7.6 | 10.9 | 14.5 | 17.9 | 21.1 | 24.5 | 27 | 27.1 | 26.4 | 25.7 | 24.9 | 24 | 22.5 | 20.1 |
| Dodge | Horicon Wildlife Area | ppb | 18.1 | 16.6 | 14.9 | 13.5 | 12.5 | 11.7 | 11.2 | 10.8 | 10.9 | 11.7 | 12.9 | 14.7 | 16.7 | 18.7 | 20.8 | 23.2 | 25 | 25.5 | 25.1 | 24.7 | 24.2 | 23.3 | 22.5 | 21.6 |
| Forest | Potawatomi | ppb | 24.2 | 23.6 | 23.2 | 22.6 | 21.7 | 20.9 | 20.1 | 19.6 | 19.5 | 19.9 | 20.5 | 21.3 | 22.6 | 23.9 | 25.6 | 27.1 | 28.2 | 28.7 | 28.8 | 28.5 | 28 | 27.4 | 26.5 | 25.6 |
| Kenosha | Chiwaukee Prairie | ppb | 32.4 | 31.7 | 30 | 28.1 | 26 | 23.7 | 21.2 | 19 | 17.6 | 17.5 | 18.5 | 19.9 | 21.5 | 23.6 | 25.7 | 27.8 | 28.9 | 29.5 | 30 | 30.2 | 30.3 | 30.7 | 30.8 | 30.6 |
| Kenosha | Kenosha-Water Tower | ppb | 23.9 | 22.5 | 20.9 | 19.1 | 18.6 | 18 | 15.4 | 14 | 13.8 | 14.4 | 15.6 | 17.1 | 18.8 | 20.5 | 23.1 | 25.4 | 26.7 | 27 | 26.6 | 26.1 | 25.7 | 25.9 | 26.1 | 25.8 |