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First Defense® Inquiry
Fields marked * are required.
Client Information
*Contact Name:
*Company:
*Address:
*City:
*State:
*Zip Code:
*Tel:
*Fax:
*E-mail:
Date of Inquiry:
 
Project information
*Project Name:
*Project Location:
   
 
Application
In line Unit
Catchbasin Inlet
Both
 
Design Criteria  
Design Flow cfs
Peak Flow cfs
Inlet Pipe Invert Elevation ft
Outlet Pipe Invert Elevation ft
Ground Level ft
Downstream TWL at Design Flow ft
Downstream TWP at Peak Flow cfs
Removal Efficiency Required at Design Flow %
Bypass Required: Yes    No
Inlet Pipe Size: in
Outlet Pipe Size: in
 
For Net Annual Sizing
Total Drainage Area Acres
Percent Impervious Area %
Runoff Coefficient
Particle Size Distribution
 
Is this inquiry for:
Study/Planning Stage
Initial Design Stage
Bidding Stage

Other Comments
Please enter any additional comments or design considerations:

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