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First Defense® Enquiry
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Client Information
*Contact Name:
*Company:
*Address:
*Town:
*County:
*Postcode:
*Tel:
*Fax:
*E-mail:
Date of Enquiry:
 
Project information
*Project Name:
*Project Location:
   
 
Application
In line Unit
Catchbasin Inlet
Both
 
Design Criteria  
Design Flow l/s
Peak Flow l/s
Inlet Pipe Invert Elevation m
Outlet Pipe Invert Elevation m
Ground Level m
Downstream TWL at Design Flow l/s
Donstream TWP at Peak Flow l/s
Removal Efficiency Required at Design Flow %
Bypass Required: Yes    No
 
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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