Lynn:

 

Please review the attached detention pond and outlet orifice calculations.  The storage volume generated is significantly different than what is currently provided on the plans.

 

If you agree with the calculations, please revise the plans accordingly.  

 

Thank you,

 

Chris Robinson, P.E.

Grantham & Associates

6570 Naaman Forest Blvd.

Suite #200, LB 2

Garland, TX 75044

972-864-2333 ext. 121

972-342-5351 cell

972-864-2334 fax