RFI -21-10-13 - 20169 - RFI Response

                                                                        MORGAN CONSULTING
                                                                       E NGINEERS P TY LTD
                                                                                     20169
                                                                                     Page 3




           The wall of the basin has also been set back 300mm from the downstream
           boundary to ensure that any overflow has an opportunity to return to existing
           conditions prior to crossing the boundary.

Item 5:    Provide an updated SWMP which includes stormwater detention modelling and
           updated drainage designs which includes allowance for the 1%AEP event at end of
           planning period 2100.

Response: Refer to section 5.4.5 of the attached updated Site Based Stormwater
          Management Plan (20169-SBSMP-Rev 4) for the considerations in regards to the
          allowance for the 1%AEP event at end of planning period 2100.

Please contact me if you have any further queries on (07) 3369 8411.

Yours faithfully,

MORGAN CONSULTING ENGINEERS PTY LTD



Henry Morgan
Director