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Stormwater Pollution Prevention Plan <br />0 <br />2-year stormwater iunoff peak flow during construction: 0.71 cfs <br />10-year stormwater runoff peak flow during construction: 1.07 cfs <br />2-year stormwater runoff peak flow after construction: 0.61 cfs <br />10-year stormwater runoff peak flow after construction: 0.96 cfs <br />The following summarizes details regarding site areas for the Big J project site: <br />Total site area: .69 acres <br />Percent impervious area before construction: 19 % <br />Percent impervious area after construction: 59 % <br />Disturbed area during construction: 0.69 acres <br />Disturbed area that is characterized as impervious (i.e., <br />access roads, staging, parking): 0.42 acres <br />2-year stormwater runoff peak flow during construction: 0.21 cfs <br />l 0-year stoimwater runoff peak flow during construction: 0.29 cfs <br />The following summarizes details regarding site areas for the Index Project Site: <br />Total site area: 0.81 acres <br />Percent impervious area before construction: 93 % <br />Percent impervious area after construction: 88 % <br />Disturbed area during construction: 0.81 acres <br />Disturbed area that is characterized as impervious (i.e., <br />access roads, staging, parking): 0.74 acres <br />2-year stormwater runoff peak flow during construction: 0.24 cfs <br />10-year stormwater runoff peak flow during construction: 0.33 cfs <br />All stormwater flow calculations are provided in Appendix F. <br />7 <br />