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95 <br /> Project Summary <br /> Project Name: Lawerence Road Development <br /> Project Area (ft): 3,680,820 ft84.5000 acres Submission Date: <br /> Disturbed Area(ft): 3,680,820 ft2 84.5000 acres <br /> County: Local Jurisdiction: Orange County <br /> Development Land Use Type: Mixed-Use Owner Type: Private <br /> Development Activity Type: Development- New Designated Downtown Area? no <br /> Nutrient Management Watershed: Falls Lake Subwatershed: Falls- Upper <br /> Phosphorus Delivery Zone:1 Falls- Upper Nitrogen Delivery Zone: Falls- Upper <br /> Phosphorus Delivery Factor(%): 100% Nitrogen Delivery Factor(%): 100% <br /> Phosphorus Loading Rate Target(Ib/ac/yr): 0.33 Nitrogen Loading Rate Target(Ib/ac/yr): 2.20 <br /> Phosphorus Load Target at Site(Ib/yr): 27.89 Nitrogen Load Target at Site(Ib/yr): 185.90 <br /> Phosphorus Load Leaving Site w/SCMs(Ib/yr): 21.59 Nitrogen Load Leaving Site w/SCMs(Ib/yr): 154.15 <br /> P Offsite Buy-Down Threshold Loading Rate(Ib/ac/yr): 0.53 N Offsite Buy-Down Threshold Loading Rate 2.83 <br /> Total P Load Reduction Needed(Ib/yr): 34.11 Total N Load Reduction Needed (Ib/yr): 106.72 <br /> P Load Treatment Balance at Site(Ib/yr): -6.30 N Load Treatment Balance at Site(Ib/yr): -31.75 <br /> P Load Treatment Balance at Lake(Ib/yr): -6.30 N Load Treatment Balance at Lake(Ib/yr): -31.75 <br /> Pre-Project Post-Project Post-Project Post-Project <br /> Nutrient Export Summa Post-Project <br /> p �"�( Whole Site Whole Site Whole Site with SCM-Treated Untreated Area <br /> Conditions without SCMs SCMs Area <br /> Percent Impervious(for runoff calculation) (%) 0.0% 19.9% 19.9% 20.2% 0.0% <br /> Percent Built-Upon Area (BUA) (%) 0.0% 16.4% 16.4% 16.6% 0.0% <br /> Annual Runoff Volume ft3/ r 653,023 3,010,726 2,504,160 2,493,711 10,449 <br /> Annual Runoff%Change(relative to pre-D) 0% 361% 283% <br /> Total Nitrogen EMC(mg/L) 2.48 1.56 0.99 0.99 2.48 <br /> Total Nitrogen Load Leaving Site(Ib/yr) 101.13 292.62 154.15 152.53 1.62 <br /> Total Nitrogen Loading Rate(Ib/ac/yr) 1.20 3.46 1.82 1.83 1.20 <br /> Total Nitrogen%Change(relative to pre-D) 0% 189% 52% <br /> Total Phosphorus EMC(mg/L) 1.07 0.33 0.14 0.14 1.07 <br /> Total Phosphorus Load Leaving Site(Ib/yr) 43.63 61.99 21.59 20.89 0.70 <br /> Total Phosphorus Loading Rate(Ib/ac/yr) 0.52 0.73 0.26 0.25 0.52 <br /> Total Phosphorus%Change(relative to pre-D) 0% 42% -51% <br />