Harsens Island, MI Radon Mitigation and Testing
Harsens Island, MI resides in St Clair County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification. Testing is recommended for all homes in the 48028 zip code area.
Harsens Island, MI Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Harsens Island, MI Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Harsens Island Radon Facts
Key details about the radon risk profile for Harsens Island and the 48028 zip code area.
Harsens Island and the 48028 zip code are located in St Clair County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Harsens Island, MI
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Most Active Radon Markets in Michigan
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Novi | 5.00 pCi/L | 7 |
| Rochester | 9.00 pCi/L | 5 |
| Battle Creek | 6.60 pCi/L | 5 |
| White Lake | 10.00 pCi/L | 4 |
| Ypsilanti | 8.50 pCi/L | 4 |
| Waterford | 7.75 pCi/L | 4 |
| Howell | 7.50 pCi/L | 4 |
| Gaylord | 6.00 pCi/L | 4 |
| Gladstone | 5.25 pCi/L | 4 |
| West Bloomfield | 5.25 pCi/L | 4 |
| Clarkston | 5.00 pCi/L | 4 |
| Flint | 9.00 pCi/L | 3 |
| Pinckney | 7.33 pCi/L | 3 |
| Northville | 5.33 pCi/L | 3 |
| Milford | 4.33 pCi/L | 3 |
| Plymouth | 4.33 pCi/L | 3 |
| Portage | 3.33 pCi/L | 3 |
| Lake Orion | 11.00 pCi/L | 2 |
| Oxford | 11.00 pCi/L | 2 |
| Grand Ledge | 7.00 pCi/L | 2 |