20210153 - Maple Street SWMP

                              Figure 4.4 – 50kL Attenuation Tank node configuration




               4.2.1.1. Pit inserts
The pits within the driveways are to be treated by Ecosol litter baskets with 1.5mm screening mesh.
The litter baskets are modelled as a single generic treatment node with pollutant removal
configured as per the Ecosol Technical Specification (refer Appendix ). 5 pits located within the
driveway will be fitted with the litter baskets, so a high flow bypass of 0.530m³/s (5x106L/s) is set for
the node.



               4.2.1.2. Bioretention Areas
A 20m² bioretention areas is to be provided along the southern boundary in the lower portion of
the development, to capture and treat surface run-off from the driveways as well as the outflows
from the attenuation tanks. The bioretention areas are modelled in accordance with the Water by
Design MUSIC Guidelines 2018 with the node configuration for one of the areas shown below in
Figure 4.5 – Bioretention Node details.




Project number 20210153
File RECOR Preliminary Stormwater Management Report - 20210153.docx, 2022-03-31                                 Page 17 of 26
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