12 2026 02 12 Crestmont CC Stormwater Management Report

= = APPENDIX A TABLE OF CONTENTS NOAA RAINFALL PRECIPITATION DATA NOAA REGION D RAINFALL DISTRIBUTION EXISTING RUNOFF CURVE NUMBER CALCULATIONS CURRENT HYDROGRAPH CALCULATIONS EX-1-DISTURBED WATERSHED Time of Concentration Calculation 2 Year Design Storm Event 10 Year Design Storm Event 100 Year Design Storm Event EX-1-DISTURBED WATERSHED ALLOWABLE PEAK DISCHARGE 2 Year Design Storm Event 10 Year Design Storm Event 100 Year Design Storm Event EX-1-UNDISTURBED WATERSHED Time of Concentration Calculation 2 Year Design Storm Event 10 Year Design Storm Event 100 Year Design Storm Event TOTAL EXISTING FLOW TO POA-1 2 Year Design Storm Event 10 Year Design Storm Event 100 Year Design Storm Event TOTAL ALLOWABLE FLOW TO POA-1 2 Year Design Storm Event 10 Year Design Storm Event 100 Year Design Storm Event EX-2-DISTURBED WATERSHED Time of Concentration Calculation 2 Year Design Storm Event 10 Year Design Storm Event 100 Year Design Storm Event EX-2-DISTURBED WATERSHED ALLOWABLE PEAK DISCHARGE 2 Year Design Storm Event 10 Year Design Storm Event 100 Year Design Storm Event