SWMP change reps

5.3      Completed Development


We are proposing to use a combination of active and passive stormwater treatment measures. Active
measures will include bio-retention basins, water storage tanks for re-use and passive measures via gross
pollutant inserts into stormwater pits across the site.

For the proposed development we have proposed incorporate Water Sensitive Urban Design (WSUD)
principles stormwater harvesting has been proposed for stormwater re-use for communal landscaping,
pool top up & the communal WC. The proposed water re-use tank has been sized in accordance with
Figure 5.1. All stormwater harvesting shall be in accordance with QDC MP1.4 – Rainwater Tanks &
Other Supplementary Water Supply Systems and the Water by design Stormwater Harvesting Guidelines




                           Figure 5.3 – Water Tank Balance Model Calculations



5.3.1    Water Quality Objectives
Water quality objectives for South East Queensland are outlined in the State Planning Policy 2017 and
are displayed in Table 5.1. These reductions are achieved by adopting best practice techniques in
accordance with the abovementioned guidelines.

                               Table 5.1: Minimum Mean Annual Load Reductions


SCG Consulting Engineers                    Page 10                             SCG Ref: 33132(SWMP).RevC