Radon Mitigation Across York County

The York guide is the main page. Each town page below shows that zip's official DEP test data, which in several cases is worse than York itself.

• Red Lion (17356) — basement average 16.3 pCi/L
• Dover (17315) — 7.4 pCi/L
• Dallastown (17313) — 16.7 pCi/L
• Hanover (17331) — 11.0 pCi/L
• Spring Grove (17362) — 21.0 pCi/L, highest in the county set