Stormwater Report 1

Time (Min) 0 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120 126 132 138 144 150 156 162 168 174 180 186 192 198 204 210 216 222 228 234 240 TABLE 7 EXISTING VS. PROPOSED RUNOFF RATES - CURRENT ADJUSTED RAINFALL Existing Conditions Proposed Conditions Difference 2-Year 10-Year 100-Year 2-Year 10-Year 100-Year 2-Year 10-Year 100-Year (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) 0 0 0 0 0 0 0.000 0.000 0.000 0 0 0 0 0 0 0.000 0.000 0.000 0 0 0 0 0 0 0.000 0.000 0.000 0 0 0 0 0 0 0.000 0.000 0.000 0 0 0 0 0 0 0.000 0.000 0.000 0 0 0.003225 0 0 0.003069 0.000 0.000 0.000 0 0 0.015587 0 0 0.014836 0.000 0.000 -0.001 0 0 0.036973 0 0 0.035191 0.000 0.000 -0.002 0 0.001798 0.062243 0 0.001712 0.059243 0.000 0.000 -0.003 0 0.007612 0.086874 0 0.007245 0.082687 0.000 0.000 -0.004 0 0.016587 0.109252 0 0.015788 0.103987 0.000 -0.001 -0.005 0.000251 0.026946 0.129527 0.000239 0.025648 0.123285 0.000 -0.001 -0.006 0.001802 0.037058 0.147887 0.001715 0.035272 0.14076 0.000 -0.002 -0.007 0.005251 0.046701 0.164983 0.004998 0.044451 0.157032 0.000 -0.002 -0.008 0.009828 0.055803 0.180575 0.009355 0.053114 0.171872 0.000 -0.003 -0.009 0.014789 0.064426 0.194963 0.014076 0.061321 0.185568 -0.001 -0.003 -0.009 0.019584 0.072561 0.208121 0.01864 0.069064 0.198091 -0.001 -0.003 -0.010 0.02422 0.080286 0.22034 0.023053 0.076417 0.209721 -0.001 -0.004 -0.011 0.028707 0.087635 0.23173 0.027323 0.083412 0.220562 -0.001 -0.004 -0.011 0.033114 0.094804 0.24279 0.031518 0.090235 0.231089 -0.002 -0.005 -0.012 0.037393 0.101662 0.253209 0.035591 0.096762 0.241006 -0.002 -0.005 -0.012 0.04152 0.10814 0.262809 0.039519 0.102928 0.250143 -0.002 -0.005 -0.013 0.045606 0.114535 0.272321 0.043408 0.109016 0.259197 -0.002 -0.006 -0.013 0.049545 0.120581 0.281112 0.047157 0.11477 0.267564 -0.002 -0.006 -0.014 0.053375 0.126394 0.28948 0.050803 0.120302 0.27553 -0.003 -0.006 -0.014 0.057058 0.131874 0.297193 0.054308 0.125519 0.28287 -0.003 -0.006 -0.014 0.060639 0.137149 0.304555 0.057717 0.13054 0.289877 -0.003 -0.007 -0.015 0.064226 0.142451 0.312067 0.061131 0.135586 0.297027 -0.003 -0.007 -0.015 0.067727 0.147581 0.319297 0.064463 0.140468 0.303909 -0.003 -0.007 -0.015 0.071084 0.152413 0.325969 0.067658 0.145068 0.31026 -0.003 -0.007 -0.016 0.07436 0.157091 0.332403 0.070776 0.14952 0.316383 -0.004 -0.008 -0.016 0.077491 0.161481 0.338308 0.073757 0.153699 0.322004

0.071084 0.152413 0.325969 0.067658 0.145068 0.31026 -0.003 -0.007 -0.016 0.07436 0.157091 0.332403 0.070776 0.14952 0.316383 -0.004 -0.008 -0.016 0.077491 0.161481 0.338308 0.073757 0.153699 0.322004 -0.004 -0.008 -0.016 0.080734 0.16612 0.344813 0.076843 0.158115 0.328196 -0.004 -0.008 -0.017 0.083837 0.170488 0.350823 0.079797 0.162271 0.333916 -0.004 -0.008 -0.017 0.086874 0.174736 0.356663 0.082687 0.166315 0.339475 -0.004 -0.008 -0.017 0.089899 0.17897 0.362529 0.085566 0.170345 0.345058 -0.004 -0.009 -0.017 0.092863 0.1831 0.368252 0.088388 0.174276 0.350505 -0.004 -0.009 -0.018 0.095689 0.186971 0.373512 0.091077 0.17796 0.355512 -0.005 -0.009 -0.018 0.098457 0.190748 0.378648 0.093712 0.181555 0.3604 -0.005 -0.009 -0.018 0.101085 0.19427 0.383334 0.096213 0.184907 0.36486 -0.005 -0.009 -0.018 0.103886 0.198141 0.388765 0.09888 0.188592 0.370029 -0.005 -0.010 -0.019 1 of 12