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ATTACHMENT #5 10 <br /> IMPERVIOUS SURFACE CALCULATION TEMPLATE <br /> Version 1.11.91 Planning& Inspections Department— Orange County, NC <br /> PROJECT DATA:- <br /> Applicant Name: ONE—ACRE LOT — W/40,000 SQ FT OUTSIDE RIGHT—OF—WAY <br /> Location: — W/ONE—STORY HOUSE AT 40—FOOT SETBACK LINE <br /> Tax Map Reference: <br /> LOT DATA:. . IMPERVIOUS SURFACE DATA <br /> Width (Ft) 150 Maximum Impervious Surface Ratio(ISR): 12% <br /> Frontage (Ft): 150 Maximum Impervious Surface Area(SqFt): 5250 <br /> Depth (Ft) 290 <br /> Area (SqFt): 43750 BUILDING DATA: <br /> Area (Acres) 1.00 Number of Stories: 1 <br /> Front Setback 40 <br /> ROAD BATA: Total Floor Area 2200 <br /> Class: Public First Floor Area 2200 <br /> Width (Ft) 20 <br /> UTILITY:STRUCTURES/USES. <br /> .DRIVEWAY DATA:7,-. Length Width Area <br /> Length (Ft): 70 Structure/Use (Ft) (Ft) (SqFt) <br /> Width (Ft) 8 Garage 0 0 0 <br /> Storage 12 10 120 <br /> Utility 0 0 0 <br /> Porch 15 6 90 <br /> Sidewalk 40 4 160 <br /> Patio/Deck 0 0 0 <br /> Pool/Tennis 0 0 0 <br /> Other 0 0 0 <br /> Other 0 0 0 <br /> Total 370 <br /> IMPERVIOUS SURFACE CHARACTERISTICS . <br /> Structural Coverage Driveway W Road <br /> Parcel 1/2 <br /> Size Budding Utility Total Length Width Area Frontage Width Area <br /> (SqFt) (SqFt) (SqFt) (SqFt) (Ft) (Ft) (SqFt) (Ft) (Ft) (SqFt) <br /> 43750 2200 370 2570 70 8 560 150 10 1500 <br /> CALCULATIQNRESULT*.. <br /> Impervous Surface(SqFt): 4630 Exceeds Maximum ISR ( 0 )Yes = 1 <br /> % Impervious Surface: 10.58% No = 0 <br /> Variance from Required ISR: 1.42% OR 620.0 SqFt <br /> Minimum Lot Size Required to Comply: 0.89 Acres OR 38583 SqFt <br /> NOTES: (1)Utility structures but may be attached to the main building but are calculated separately. <br /> (2) Driveway length includes parking/back—up area plus property line—to—road pavement distance. <br /> (3)Open,wooden decks are not counted as impervious surfaces. <br /> (4)Lot area includes one—half of 50—foot right—of—way. <br />