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Appendix 1 <br /> Method 1 for Quantifying TN Export from Residential Developments when <br /> Building and Driveway Footprints are Not Shown <br /> Step 1:. Determine area for each type of land use and enter in Column <br /> (2)• <br /> Step 2: Total the areas for each type of land use and enter at the bottom of Column(2). <br /> Step 3: Determine the TN export coefficient associated with right-of-way using Graph 1. <br /> Step 4: Determine the TN export coefficient associated with lots using Graph 2. <br /> Step 5: Multiply the areas in Column(2)by the TN export coefficients in Column(3) and <br /> enter in Column(4). <br /> Step 6: Total the TN exports for each type of land use and enter at the bottom of Column(4). <br /> Step 7: Determine the export coefficient for site by dividing the total TN export from uses at <br /> the bottom of Column(4) by the total area at the bottom of Column(2). <br /> (�) (2) (3) (4) <br /> Type of Land Cover Area TN export TN export from <br /> coeff. use <br /> (acres) (Ibs/ac/yr) (Ibs/yr) <br /> Permanently protected undisturbed 0.6 <br /> open space (forest, unmown meadow) <br /> Permanently protected managed 1.2 <br /> open space (grass, landscaping, etc.) <br /> Right-of-way (read TN export from <br /> Graph 1) <br /> Lots (read TN export from Graph <br /> 2) <br /> TOTAL <br /> 1 <br />