Could Your Driveway Be Making You Sick? Posted on June 8, 2017June 12, 2017 by BACOG Coal Tar and Other High PAH sealants (updated 4/17) More information on Coal Tar Sealants http://water.usgs.gov/nawqa/asphalt_sealers.html epa.gov/npdes/pubs/coaltar.pdf http://pubs.usgs.gov/fs/2011/3010/pdf/fs2011-3010.pdf
