16-001014-01A (Swmp)

 Item   Brief Summary of Item                       Response to Item
                                                    oil will be pre-treated by GPT’s. Since the catchment to the Northern
                                                    Bioretention Basin is smaller than 5ha and does not contain significant
                                                    areas of car parking or road, a sediment forebay is proposed.
 66     Stormwater Quality Treatment Devices to     Bioretention Basins and the Pond have been designed accordingly.
        be designed in accordance with Healthy      Details are provided in Section 2.1 and Section 3.1 of the SMCMP
        Waterway and Water By Design                Report.
        guidelines.
 67     Stormwater design and maintenance           The criteria and framework for design, construction and operational
        strategy in accordance with Council’s       maintenance for stormwater devices is in accordance with the
        approved Framework Letter Report (No.       Framework Letter Report approved by Council. Refer to the SMCMP
        B14158.W.07L dated 8 October 2015)          Report for details.
 68     The SMCMP Report to be in accordance        The SMCMP Report has been written in accordance with this approved
        with Council’s approved Framework           document.
        Letter Report (No. B14158.W.07L dated
        8 October 2015)
 69     Owner responsibility for construction,      This condition is stipulated in this report.
        maintenance and repair costs of
        stormwater management devices.
 70     Calculations to demonstrate runoff to       Energy dissipaters (i.e. rock scour protection) have been provided at
        northern swale within the site will not     drainage outlets into the northern site swale. Energy Dissipation
        cause scour.                                Calculations and Manning’s Sections (comparing existing and
                                                    developed conditions of the swale) are provided in Appendix A of the
                                                    SMCMP Report.
 71     Any waters captured to be plumbed and       The capture of all water for external uses was not proposed as part
        used for external or non-potable uses.      of the previously approved MCU submission. The capture of all
                                                    water on site is not required for the site to meet both Stormwater
                                                    Quality and Quantity Objectives to be achieved and is therefore not
                                                    proposed or required.
 72     Developed peak flows from the site          As per response to Condition 63, Section 3.2.6 of this report
        during the 63% AEP storm event to be        demonstrates that proposed detention basins are adequate in reducing
        reduced back to or below existing levels.   peak flows to meet this condition.
 73     Performance bond to be provided to          Monitoring and maintenance costs are detailed in Appendix A of the
        Council equivalent to 150% of the value     SMCMP Report. A performance bond will be provided to Council for the
        of monitoring and maintenance of the        first 5 years of full operation of the pond.
        water bodies.




16-001014-01 | STORMWATER MANAGEMENT PLAN (SWMP)                 COOROY RETIREMENT COMMUNITY, TRADING POST
| PALM LAKE RESORTS                                                                          ROAD, COOROY                     |4