McHenry County includes a community called Lake-in-the-Hills, where:
- the USGS found the highest levels of PAHs along a residential driveway from coal tar sealer
- as much as 4% of some watersheds are coated in coal tar sealcoat
- the Chicago Tribune featured an article highlighting the local findings (New Doubts Cast on Safety of Common Driveway Sealant), which was circulated around the US
- the County government had seminars and produced a robust reference of coal tar sealant resources
http://www.ilga.gov/legislation/billstatus.asp?DocNum=3509&GAID=11&GA=97&DocTypeID=SB&LegID=65191&SessionID=84

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