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 0.392 0.628 1.159 0.388 0.625 1.157 -0.004 -0.003 -0.002 1026 0.384 0.616 1.136 0.381 0.613 1.134 -0.004 -0.003 -0.002 1032 0.377 0.604 1.114 0.373 0.601 1.112 -0.004 -0.003 -0.002 1038 0.369 0.592 1.091 0.366 0.589 1.089 -0.004 -0.003 -0.002 1044 0.362 0.579 1.069 0.358 0.576 1.067 -0.004 -0.003 -0.002 1050 0.354 0.567 1.046 0.351 0.564 1.044 -0.004 -0.003 -0.002 1056 0.346 0.555 1.023 0.343 0.552 1.021 -0.003 -0.003 -0.002 1062 0.339 0.543 1.001 0.335 0.540 0.999 -0.003 -0.003 -0.002 1068 0.332 0.531 0.979 0.328 0.528 0.977 -0.003 -0.003 -0.002 1074 0.324 0.519 0.957 0.321 0.517 0.956 -0.003 -0.003 -0.002 1080 0.317 0.507 0.935 0.314 0.505 0.934 -0.003 -0.003 -0.002 1086 0.309 0.495 0.913 0.306 0.493 0.911 -0.003 -0.003 -0.002 1092 0.303 0.485 0.893 0.300 0.482 0.891 -0.003 -0.002 -0.002 1098 0.298 0.478 0.881 0.296 0.475 0.879 -0.003 -0.002 -0.002 1104 0.296 0.474 0.873 0.293 0.471 0.871 -0.003 -0.002 -0.002 1110 0.294 0.470 0.867 0.291 0.468 0.865 -0.003 -0.002 -0.002 1116 0.292 0.467 0.861 0.289 0.465 0.859 -0.003 -0.002 -0.002 1122 0.290 0.464 0.856 0.287 0.462 0.854 -0.003 -0.002 -0.002 1128 0.288 0.461 0.850 0.286 0.459 0.849 -0.003 -0.002 -0.002 1134 0.287 0.459 0.846 0.284 0.457 0.844 -0.003 -0.002 -0.002 1140 0.285 0.456 0.839 0.282 0.453 0.838 -0.003 -0.002

0.002 1134 0.287 0.459 0.846 0.284 0.457 0.844 -0.003 -0.002 -0.002 1140 0.285 0.456 0.839 0.282 0.453 0.838 -0.003 -0.002 -0.002 1146 0.283 0.452 0.834 0.280 0.450 0.832 -0.003 -0.002 -0.002 1152 0.281 0.449 0.828 0.278 0.447 0.826 -0.003 -0.002 -0.002 1158 0.279 0.447 0.823 0.276 0.444 0.821 -0.003 -0.002 -0.002 1164 0.277 0.443 0.817 0.275 0.441 0.815 -0.003 -0.002 -0.002 1170 0.275 0.440 0.811 0.273 0.438 0.809 -0.003 -0.002 -0.002 1176 0.273 0.437 0.806 0.271 0.435 0.804 -0.003 -0.002 -0.002 1182 0.272 0.434 0.800 0.269 0.432 0.799 -0.003 -0.002 -0.001 1188 0.270 0.432 0.796 0.267 0.430 0.794 -0.003 -0.002 -0.001 1194 0.268 0.428 0.789 0.265 0.426 0.788 -0.003 -0.002 -0.001 1200 0.266 0.425 0.783 0.263 0.423 0.782 -0.002 -0.002 -0.001 1206 0.264 0.422 0.778 0.262 0.420 0.776 -0.002 -0.002 -0.001 1212 0.262 0.420 0.773 0.260 0.418 0.771 -0.002 -0.002 -0.001 1218 0.260 0.416 0.767 0.258 0.414 0.765 -0.002 -0.002 -0.001 1224 0.258 0.413 0.761 0.256 0.411 0.759 -0.002 -0.002 -0.001 1230 0.257 0.410 0.755 0.254 0.408 0.754 -0.002 -0.002 -0.001 1236 0.255 0.407 0.750 0.252 0.405 0.749 -0.002 -0.002 -0.001 1242 0.253 0.405 0.745 0.251 0.403 0.744 -0.002 -0.002 -0.001 1248 0.251 0.401 0.739 0.249 0.399 0.738 -0.002 -0.002 -0.001 1254 0.249 0.398 0.733 0.247 0.396 0.732 -0.002 -0.002 -0.001 1260 0.247 0.395 0.728 0.245 0.393 0.726 -0.002 -0.002 -0.001 1266 0.245 0.392 0.722 0.243 0.390 0.720 -0.002 -0.002 -0.001 1272 0.243 0.389 0.716 0.241 0.387 0.714

-0.002 -0.002 -0.001 1266 0.245 0.392 0.722 0.243 0.390 0.720 -0.002 -0.002 -0.001 1272 0.243 0.389 0.716 0.241 0.387 0.714 -0.002 -0.002 -0.001 17 of 24