Reference Document - RAL23/0013.02 - Part 2 (As Published)

Table 2-3. A time of concentration of 20.6 minutes was determined for SUB3 rational method. It can be
seen there is values are generally within ten percent difference across events assessed, indicating that the
WBNM model flows are suitable for use. Refer to Appendix B for a summary of rational method parameters
used.




23-0167SMP01-V3 | Stormwater Management Plan | 33 Pavilion Street, Pomona                           Page 20