StormTrooper Sizing Tool
|RATIONAL EQUATION -- STORM WATER INTERCEPTOR SIZING TOOL|
|Drainage Area||×||Runoff Coefficient||×||Rainfall Intensity||=||Flowrate (CFS)||or||Flowrate (GPM)|
City of Houston/Harris County Commercial Property Runoff Coefficient C=0.8 and rainfall intensity =0.27
For other methodologies such as City of Austin and iSWM-NCTCOG contact us for assistance.