2025 12 19 Stormwater Report Rev 1

Existing Conditions Proposed Conditions Difference Time 2-Year 10-Year 100-Year 2-Year 10-Year 100-Year 2-Year 10-Year 100-Year (Min) (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) (CFS) 1020 0.328 0.526 0.918 0.324 0.522 0.916 -0.004 -0.004 -0.003 1026 0.321 0.516 0.900 0.317 0.512 0.898 -0.004 -0.004 -0.003 1032 0.315 0.505 0.883 0.311 0.502 0.880 -0.004 -0.003 -0.003 1038 0.309 0.495 0.865 0.305 0.492 0.862 -0.004 -0.003 -0.003 1044 0.302 0.485 0.847 0.299 0.482 0.844 -0.004 -0.003 -0.002 1050 0.296 0.475 0.829 0.292 0.472 0.826 -0.004 -0.003 -0.002 1056 0.290 0.465 0.811 0.286 0.461 0.809 -0.004 -0.003 -0.002 1062 0.283 0.454 0.793 0.280 0.451 0.791 -0.003 -0.003 -0.002 1068 0.277 0.445 0.776 0.274 0.442 0.774 -0.003 -0.003 -0.002 1074 0.271 0.435 0.759 0.268 0.432 0.757 -0.003 -0.003 -0.002 1080 0.265 0.425 0.741 0.262 0.422 0.739 -0.003 -0.003 -0.002 1086 0.259 0.415 0.723 0.255 0.412 0.721 -0.003 -0.003 -0.002 1092 0.253 0.406 0.708 0.250 0.403 0.706 -0.003 -0.003 -0.002 1098 0.250 0.400 0.698 0.247 0.397 0.696 -0.003 -0.003 -0.002 1104 0.247 0.397 0.692 0.244 0.394 0.690 -0.003 -0.003 -0.002 1110 0.246 0.394 0.687 0.243 0.391 0.685 -0.003 -0.003 -0.002 1116 0.244 0.391 0.682 0.241 0.389 0.680 -0.003 -0.003 -0.002 1122 0.243 0.389 0.678 0.240 0.386 0.676 -0.003 -0.003 -0.002 1128 0.241 0.386 0.674 0.238 0.384 0.672 -0.003 -0.003 -0.002 1134 0.240 0.384 0.670 0.237 0.382 0.668 -0.003 -0.002 -0.002 1140 0.238 0.381 0.665 0.235 0.379 0.663 -0.003 -0.002

0.002 1134 0.240 0.384 0.670 0.237 0.382 0.668 -0.003 -0.002 -0.002 1140 0.238 0.381 0.665 0.235 0.379 0.663 -0.003 -0.002 -0.002 1146 0.236 0.379 0.661 0.234 0.376 0.659 -0.003 -0.002 -0.002 1152 0.235 0.376 0.656 0.232 0.374 0.654 -0.003 -0.002 -0.002 1158 0.234 0.374 0.652 0.231 0.372 0.650 -0.003 -0.002 -0.002 1164 0.232 0.371 0.648 0.229 0.369 0.646 -0.003 -0.002 -0.002 1170 0.230 0.369 0.643 0.227 0.366 0.641 -0.003 -0.002 -0.002 1176 0.229 0.366 0.639 0.226 0.364 0.637 -0.003 -0.002 -0.002 1182 0.227 0.364 0.634 0.225 0.361 0.633 -0.003 -0.002 -0.002 1188 0.226 0.362 0.631 0.223 0.359 0.629 -0.003 -0.002 -0.002 1194 0.224 0.359 0.626 0.221 0.357 0.624 -0.003 -0.002 -0.002 1200 0.223 0.356 0.621 0.220 0.354 0.619 -0.003 -0.002 -0.002 1206 0.221 0.354 0.617 0.218 0.351 0.615 -0.003 -0.002 -0.002 1212 0.220 0.351 0.613 0.217 0.349 0.611 -0.003 -0.002 -0.002 1218 0.218 0.349 0.608 0.215 0.347 0.606 -0.003 -0.002 -0.002 1224 0.216 0.346 0.603 0.214 0.344 0.601 -0.002 -0.002 -0.002 1230 0.215 0.344 0.599 0.212 0.341 0.597 -0.002 -0.002 -0.002 1236 0.213 0.341 0.595 0.211 0.339 0.593 -0.002 -0.002 -0.002 1242 0.212 0.339 0.591 0.209 0.337 0.589 -0.002 -0.002 -0.002 1248 0.210 0.336 0.586 0.208 0.334 0.584 -0.002 -0.002 -0.002 1254 0.208 0.334 0.581 0.206 0.332 0.580 -0.002 -0.002 -0.002 1260 0.207 0.331 0.577 0.205 0.329 0.575 -0.002 -0.002 -0.002 1266 0.205 0.328 0.572 0.203 0.326 0.571 -0.002 -0.002 -0.002 1272 0.203 0.326 0.567 0.201 0.324 0.566

-0.002 -0.002 -0.002 1266 0.205 0.328 0.572 0.203 0.326 0.571 -0.002 -0.002 -0.002 1272 0.203 0.326 0.567 0.201 0.324 0.566 -0.002 -0.002 -0.001 5 of 24