For Engineers and Designers:


We offer a free analysis simply by emailing to the address below as attachments the following information:

a. Six (6) hydrographs representing the inflow to your current designed retention system.  The required format is as follows; 2000 ordinates; time and Q cfs as a text file or comma separated data.  There would be 6 files, generally for 2, 5, 10, 25, 50, and 100 year storms.

b. A separate file containing the desired FINAL peak flows for each of the six (6) storms.

c. A separate file indicating the general footprint area of the detention basin in terms of square feet or acres.

Email these to: rgm@extentionbasin.com

The EBS minimized detention volume will be sent back to as a REPLY to the initial email.