Appendix B - IWMP_2PearsonsRd_REV0

                                                                                 Callaghan & Toth


6.0 CONCLUSIONS & RECOMMENDATIONS
An integrated water management approach has been used to assess the site’s stormwater
requirements and water management needs. In summary:

        The proposed reconfiguration at 2 Pearsons Road from one (1) lot into eighteen (18) lots
         plus the balance park lot, can be treated by a stormwater treatment train consisting of:
         o One Bioretention Basin (BioBasin 1)
        This proposed stormwater treatment train achieves the current best practice load based
         reduction targets as prescribed in State Planning Policy 2017 (Appendix 2: Table B)
        The new lots have sufficient flood free areas to build residential infrastructure in
         accordance with Council’s requirements.
        The increased flood storage achieved with the measures:
                    o Detention volume in the BioBasin, and
                    o 47m3 EcoAID underground storage facility.
        The riparian re-vegetation and minor filling in flood plain will be offset by compensatory
         earthworks to the proposed park. Other impacts from possible increase in vegetation
         density are not adjacent to freehold land, and freehold land is elevated well above flood
         levels.




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2035 2 Pearsons Road IWMP                                                    September 2020