Infiltration Basin Drain time Calculations
Project:Proposed Office BuildingComputed By:
Job #:3342-99-007Checked By:
Location:Jackson, NJDate:
NC
8/9/23
Revised:
02/10/2026
Basin Name: Prop. StormBrixx
Effective Depth of Runoff to be Infiltrated = Volume of Runoff to be Infiltrated / Surface Area of Infiltration Area = 7,267 cubic feet
3,040 square feet
2.39 feet
20 inches per hour
10 inches per hour
Effective Depth of Runoff to be Infiltrated / Design Recharge Rate = Time to Empty Basin =
2.87 hours**
*Note : Factor of Safety of 2 is applied to the Field Tested Recharge Rate to establish the Design Recharge Rate**Note : Time to Empty Basin must be less than 72 hours. Therefore; Drain time is less than 72 Hours, therefore, design is acceptable