LATE RFI - SCG 33114 (SWM) Rev A

8.0      CONCULSION

The stormwater management report demonstrates under the detailed plans the proposed residential
development at , Lot 1 on RP203032, 20 Kauri Street, Cooroy meets the quantity and quality stormwater
requirements as described in this report.


If the proposed development maintains pre-development drainage patterns and flow rates to the lawful
points of discharge, are the existing stormwater drainage reserve on the western boundary of the site and
the Kauri Street kerb and channel.


Sediment generated during the construction phase is to be dealt with in accordance with a Silt and
Sediment Control plan and is to be kept on-site throughout construction.


The proposed development does not trigger the State Planning Policy 2017 stormwater quality treatment
objectives. A water storage tank for re-use has been incorporated into the proposed development to
promote stormwater harvesting.


On-site detention has been provided to maintain existing peak flow rates and to ensure a non-worsening
to flooding of downstream properties. On-site detention is proposed to be contained with an
underground tank and the designed to contain all flows up to a Q100 (1% AEP) storm event.


The subject site is not affected by localised flooding.




SCG Consulting Engineers                   Page 17                                SCG Ref: 33114(SWMP)