Stormwater Mgmt Plan

SC-8407 – 45 Maple Street, Cooroy                                                               6


3.3       Operational Phase
During the operational stage of the development, the following impacts have been identified in relation to
stormwater runoff and water quality of the receiving waterways:
         Gross pollutants which include human derived litter and vegetation
         Coarse sediment
To target these potential pollutants coarse sediment traps or GPT baskets are proposed to be incorporated
within the drainage within trafficable pavement areas.


3.3.1     Water Quality Objectives
The water quality objectives (WQO’s) for this site were determined in accordance with Appendix 2 of the
State Planning Policy (SPP) Jul 2017. As the development proposal involves a material change of use for
urban purpose that involves premises of less than 2500 square metres, the development is exempt from
demonstrating WSUD load reductions.


Noosa Councils Planning Scheme Policy, ‘Division 20’ Water Sensitive Design Code requires the capture
and utilising of run-off from appropriate areas on-site. Accordingly, 60kL of harvesting and reuse is
proposed to be available for all external uses including gardening, irrigation, ponds and outdoor cleaning,
to satisfy specific outcome O2, Table 14-61 to this code.