“…Research is ongoing at field installations and laboratories both in the U.S. and in other countries. Active researchers in the water-quality impacts of, and controlling factors for, infiltration through both engineered and natural soils include several researchers in Florida, Villanova University, the University of New Hampshire, North Carolina State University, the University of Maryland, the U.S. EPA Urban Watershed Management Branch (investigations in both New Jersey and Kansas City, Missouri), France, Germany, Norway, Australia, and Switzerland (Davis, 2008;Dechesne et al, 2005;Dechesne et al, 2001;Dierkes et al, 2006;Emerson et al, 2008;Ferguson, 1990;Fischer et al, 2003;Guo et al, 2006;Hathhorn and Yonge, 2005;Hatt et al, 2007;Hatt et al, 2008;Hsieh and Davis et al, 2007a,b;Hunt et al, 2008;Jayasuriya et al, 2007;Kumar et al, 2006;Kwiatkowski et al, 2007;Li and Davis, 2008a, b;Lucas and Greenway, 2008;Marcos et al, 2002;McKenzie and Irwin, 1988;Mikkelsen et al, 1997;Muthanna et al, 2007a,b;Nogaro et al, 2007;Osenbruck et al, 2007;Sample and Heaney, 2006;Sansalone and Glenn, 2007;SRF Consulting Group, 2004;Sun and Davis, 2007;Thomas, 2000;Van Cuyk and Siegrist, 2007;Warnaars et al, 1999;Welker et al, 2006;Zhang and Ross, 2007;Zheng et al, 2006;Zomorodi, 2006).…”