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Section 22 Appendix 1 <br />Method 1 for Quantifying TN Export from Residential Developments when Building and <br />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 IN export from uses at <br />the bottom of Column (4) by the total area at the bottom of Column (2). <br />(1) (2) <br />(3) <br />(4) <br />Type of Land Cover Area <br />TN export <br />TN export from <br />coeff. <br />use <br />acres <br />Ibs /ac/ r) <br />Ibs/ r) <br />Permanently protected undisturbed <br />0.6 <br />open s ace forest, unmown meadow <br />Permanently protected managed <br />1.2 <br />open s ace (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 />37 <br />