Marsh Creek Impervious Surfaces Table XX. Percent % of impervious surface in Marsh Creek Watershed (as based on ARC impervious quotients) Classes TOTAL Year Majo r Road s Commerci al Fore st Low Density Residen tial Apartmen t/ Townhous e Single Family Residenti al Agricul ture Office/ Light Industrial % impervious surface in watershed 2003 7.81 6.61 0.13 1.06 7.5 4.40 0.05 2.6 30.16 2005 8.66 3.76 0.12 1.67 8.7 3.81 0.06 2.5 29.28 2006 7.87 5.5 0.13 2.37 8.33 3.94 0.04 2.12 30.3 2008 6.93 3.74 0.10 1.72 11.75 2.74 0.09 0.24 27.31 2009 9.36 11.31 0.10 1.8 3.7 1.43 0.03 6.37 34.1 2011 7.47 5.97 0.13 2.33 6.77 3.87 0.04 1.8 28.38