****** NOTE: Impervious Cover Is the Maximum Allowed by Zoning or Watershed Ordinance *******
Input Total Site Area and Impervious over Percent
OR
Input Impervious Cover Acres
Total Site Area acres
Impervious Cover % percent
Impervious Cover acres
Construction Cost Component (CCC)
ENR AF = ENR 2009 / ENR 2002
ENR 2002 = 6579 and ENR 2009 = 8596.31