2026 02 12 Crestmont CC and Eagle Rock Ave Stormwater Management Report

Hydrograph Discharge Table, cont'd PR-1A Routing Time Outflow Time Outflow Time Outflow Time Outflow Time Outflow (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) 11.72 0.840 12.32 3.056 12.92 1.760 13.52 1.176 14.12 0.884 11.73 0.855 12.33 3.044 12.93 1.730 13.53 1.168 14.13 0.876 11.75 0.872 12.35 3.026 12.95 1.700 13.55 1.160 14.15 0.868 11.77 0.890 12.37 3.004 12.97 1.671 13.57 1.151 14.17 0.860 11.78 0.909 12.38 2.978 12.98 1.642 13.58 1.143 14.18 0.853 11.80 0.928 12.40 2.951 13.00 1.615 13.60 1.134 14.20 0.845 11.82 0.946 12.42 2.924 13.02 1.588 13.62 1.126 14.22 0.838 11.83 0.966 12.43 2.895 13.03 1.561 13.63 1.118 14.23 0.830 11.85 0.990 12.45 2.866 13.05 1.534 13.65 1.109 14.25 0.823 11.87 1.015 12.47 2.837 13.07 1.507 13.67 1.101 14.27 0.816 11.88 1.042 12.48 2.808 13.08 1.487 13.68 1.093 14.28 0.809 11.90 1.067 12.50 2.778 13.10 1.469 13.70 1.085 14.30 0.802 11.92 1.093 12.52 2.745 13.12 1.452 13.72 1.077 14.32 0.795 11.93 1.125 12.53 2.711 13.13 1.434 13.73 1.069 14.33 0.788 11.95 1.165 12.55 2.674 13.15 1.417 13.75 1.061 14.35 0.781 11.97 1.206 12.57 2.637 13.17 1.400 13.77 1.053 14.37 0.774 11.98 1.248

75 1.061 14.35 0.781 11.97 1.206 12.57 2.637 13.17 1.400 13.77 1.053 14.37 0.774 11.98 1.248 12.58 2.600 13.18 1.383 13.78 1.045 14.38 0.764 12.00 1.306 12.60 2.563 13.20 1.366 13.80 1.036 14.40 0.754 12.02 1.405 12.62 2.523 13.22 1.350 13.82 1.028 14.42 0.745 12.03 1.533 12.63 2.475 13.23 1.333 13.83 1.019 14.43 0.736 12.05 1.730 12.65 2.428 13.25 1.317 13.85 1.011 14.45 0.726 12.07 1.968 12.67 2.381 13.27 1.301 13.87 1.003 14.47 0.717 12.08 2.226 12.68 2.336 13.28 1.285 13.88 0.995 14.48 0.709 12.10 2.454 12.70 2.291 13.30 1.274 13.90 0.987 14.50 0.700 12.12 2.636 12.72 2.248 13.32 1.266 13.92 0.979 14.52 0.692 12.13 2.765 12.73 2.206 13.33 1.259 13.93 0.971 14.53 0.683 12.15 2.850 12.75 2.158 13.35 1.251 13.95 0.963 14.55 0.675 12.17 2.910 12.77 2.111 13.37 1.244 13.97 0.955 14.57 0.667 12.18 2.958 12.78 2.066 13.38 1.236 13.98 0.948 14.58 0.659 12.20 3.001 12.80 2.022 13.40 1.229 14.00 0.940 14.60 0.652 12.22 3.032 12.82 1.980 13.42 1.221 14.02 0.933 14.62 0.644 12.23 3.053 12.83 1.939 13.43 1.214 14.03 0.925 14.63 0.637 12.25 3.064 12.85 1.899 13.45 1.206 14.05 0.917 14.65 0.630 12.27 3.069 12.87 1.859 13.47 1.199 14.07 0.908 14.67 0.622 12.28

1.899 13.45 1.206 14.05 0.917 14.65 0.630 12.27 3.069 12.87 1.859 13.47 1.199 14.07 0.908 14.67 0.622 12.28 3.068 12.88 1.821 13.48 1.191 14.08 0.900 14.68 0.615 12.30 3.064 12.90 1.790 13.50 1.184 14.10 0.892 14.70 0.608 Printed values > 1% of Qpeak. nth-point print interval = 1

SSBB-2

Hydrograph Report File: Eagle Rock Proposed (Current).hys Hydrology Studio v 3.0.0.39 10-22-2025 PR-2A Routing Hyd. No. 46 Hydrograph Type = Pond Route Peak Flow = 4.531 cfs Storm Frequency = 25-yr Time to Peak = 12.25 hrs Time Interval = 1 min Hydrograph Volume = 38,803 cuft Inflow Hydrograph = 45 - PR-2A Max. Elevation = 538.80 ft Pond Name = SSBB-2 Max. Storage = 16,329 cuft Pond Routing by Storage Indication Method Center of mass detention time = 2.04 hrs Hydrograph Discharge Table Time Outflow Time Outflow Time Outflow Time Outflow Time Outflow (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) 9.37 0.046 9.78 0.098 10.20 0.181 10.62 0.276 11.03 0.421 9.38 0.048 9.80 0.102 10.22 0.184 10.63 0.281 11.05 0.427 9.40 0.050 9.82 0.105 10.23 0.187 10.65 0.286 11.07 0.434 9.42 0.051 9.83 0.108 10.25 0.191 10.67 0.291 11.08 0.440 9.43 0.053 9.85 0.111 10.27 0.194 10.68 0.296 11.10 0.446 9.45 0.055 9.87 0.115 10.28 0.197 10.70 0.301 11.12 0.453 9.47

0.296 11.10 0.446 9.45 0.055 9.87 0.115 10.28 0.197 10.70 0.301 11.12 0.453 9.47 0.056 9.88 0.118 10.30 0.201 10.72 0.307 11.13 0.459 9.48 0.058 9.90 0.121 10.32 0.204 10.73 0.312 11.15 0.466 9.50 0.060 9.92 0.125 10.33 0.207 10.75 0.317 11.17 0.474 9.52 0.062 9.93 0.128 10.35 0.211 10.77 0.323 11.18 0.481 9.53 0.063 9.95 0.131 10.37 0.214 10.78 0.329 11.20 0.488 9.55 0.065 9.97 0.135 10.38 0.217 10.80 0.334 11.22 0.496 9.57 0.067 9.98 0.138 10.40 0.221 10.82 0.340 11.23 0.503 9.58 0.069 10.00 0.141 10.42 0.224 10.83 0.346 11.25 0.511 9.60 0.070 10.02 0.145 10.43 0.227 10.85 0.352 11.27 0.519 9.62 0.072 10.03 0.148 10.45 0.231 10.87 0.358 11.28 0.527 9.63 0.074 10.05 0.151 10.47 0.236 10.88 0.364 11.30 0.535 9.65 0.076 10.07 0.154 10.48 0.240 10.90 0.370 11.32 0.544 9.67 0.078 10.08 0.158 10.50 0.244 10.92 0.376 11.33 0.552 9.68 0.079 10.10 0.161 10.52 0.248 10.93 0.382 11.35 0.561 9.70 0.082 10.12 0.164 10.53 0.253 10.95 0.389 11.37 0.570 9.72 0.085 10.13 0.168 10.55 0.257 10.97 0.395

0.164 10.53 0.253 10.95 0.389 11.37 0.570 9.72 0.085 10.13 0.168 10.55 0.257 10.97 0.395 11.38 0.579 9.73 0.088 10.15 0.171 10.57 0.262 10.98 0.402 11.40 0.586 9.75 0.092 10.17 0.174 10.58 0.267 11.00 0.408 11.42 0.593 9.77 0.095 10.18 0.178 10.60 0.271 11.02 0.415 11.43 0.599 Printed values > 1% of Qpeak. nth-point print interval = 1

Hydrograph Discharge Table, cont'd PR-2A Routing Time Outflow Time Outflow Time Outflow Time Outflow Time Outflow (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) (hrs) (cfs) 11.45 0.606 12.05 1.643 12.65 3.123 13.25 1.699 13.85 1.154 11.47 0.613 12.07 1.971 12.67 3.056 13.27 1.675 13.87 1.144 11.48 0.620 12.08 2.395 12.68 2.992 13.28 1.653 13.88 1.135 11.50 0.627 12.10 2.832 12.70 2.930 13.30 1.630 13.90 1.126 11.52 0.635 12.12 3.286 12.72 2.870 13.32 1.608 13.92 1.116 11.53 0.643 12.13 3.656 12.73 2.811 13.33 1.587 13.93 1.107 11.55 0.652 12.15 3.940 12.75 2.753 13.35 1.565 13.95 1.098 11.57 0.662 12.17 4.135 12.77 2.699 13.37 1.544 13.97 1.089 11.58 0.672 12.18 4.275 12.78 2.652 13.38 1.522 13.98 1.080 11.60 0.683 12.20 4.386 12.80 2.606 13.40 1.502 14.00 1.072 11.62 0.694 12.22 4.467 12.82 2.562 13.42 1.482 14.02 1.063 11.63 0.703 12.23 4.514 12.83 2.518 13.43 1.462 14.03 1.055 11.65 0.713 12.25 4.531 12.85 2.474 13.45 1.442 14.05 1.046 11.67 0.723 12.27 4.527 12.87 2.431 13.47 1.422 14.07 1.038 11.68 0.733 12.28 4.513 12.88 2.389 13.48 1.402 14.08 1.031 11.70 0.743 12.30 4.494 12.90 2.349 13.50 1.384 14.10 1.029 11.72 0.753

48 1.402 14.08 1.031 11.70 0.743 12.30 4.494 12.90 2.349 13.50 1.384 14.10 1.029 11.72 0.753 12.32 4.468 12.92 2.309 13.52 1.373 14.12 1.027 11.73 0.765 12.33 4.429 12.93 2.270 13.53 1.361 14.13 1.026 11.75 0.778 12.35 4.377 12.95 2.231 13.55 1.349 14.15 1.024 11.77 0.792 12.37 4.315 12.97 2.192 13.57 1.338 14.17 1.022 11.78 0.803 12.38 4.250 12.98 2.155 13.58 1.326 14.18 1.020 11.80 0.814 12.40 4.183 13.00 2.119 13.60 1.314 14.20 1.019 11.82 0.826 12.42 4.114 13.02 2.083 13.62 1.303 14.22 1.017 11.83 0.839 12.43 4.044 13.03 2.048 13.63 1.291 14.23 1.015 11.85 0.854 12.45 3.973 13.05 2.012 13.65 1.280 14.25 1.014 11.87 0.870 12.47 3.902 13.07 1.977 13.67 1.269 14.27 1.012 11.88 0.885 12.48 3.832 13.08 1.950 13.68 1.257 14.28 1.010 11.90 0.901 12.50 3.763 13.10 1.923 13.70 1.246 14.30 1.008 11.92 0.917 12.52 3.694 13.12 1.897 13.72 1.236 14.32 1.006 11.93 0.937 12.53 3.620 13.13 1.871 13.73 1.225 14.33 1.005 11.95 0.961 12.55 3.546 13.15 1.845 13.75 1.214 14.35 1.003 11.97 0.985 12.57 3.473 13.17 1.819 13.77 1.204 14.37 1.001 11.98 1.010 12.58 3.401 13.18 1.794 13.78 1.194 14.38 0.999 12.00 1.061 12.60 3.330 13.20 1.770 13.80 1.184 14.40 0.997 12.02

3.401 13.18 1.794 13.78 1.194 14.38 0.999 12.00 1.061 12.60 3.330 13.20 1.770 13.80 1.184 14.40 0.997 12.02 1.198 12.62 3.260 13.22 1.746 13.82 1.174 14.42 0.996 12.03 1.358 12.63 3.191 13.23 1.722 13.83 1.164 14.43 0.994 Printed values > 1% of Qpeak. nth-point print interval = 1