Planning Report - 100988 · RAL25/0004

            network up to and including the design horizon (2036). Further, the proposed
            extension to the water network provides adequate flow and pressure to the
            proposed development both during peak hour and under fire flow conditions.

            The sewer network analysis analysed the network between the development
            connection points to the existing sewer pump station CRY020 which ultimately
            discharges to STP-CRY001 via a rising main. The initial assessment of the
            existing sewer network identified that the pumps in CRY020 had adequate
            capacity for all pre-development scenarios and the 2021 post-development
            scenario. For the 2036 post-development scenario, with the development
            loading, a pump upgrade was required. Through further analysis it was
            determined that the pump station capacity needed to increase to 18 L/s. It is
            recommended that the pump station capacity be upgraded before 2031 based
            on Unitywater’s current demand forecast. With the proposed pump upgrade
            detailed in this report, the downstream network demonstrated acceptable
            performance between the development connection point and pump station
            CRY020. Further, using gravity sewer mains the performance of the network
            within the proposed development was also acceptable.

            Therefore, as demonstrated in the report, with the inclusion of the proposed
            pump station upgrade at CRY020 the development will not have a detrimental
            impact on current and future Unitywater customers.’

            The findings and recommendations of this Analysis will be implemented (see
            Appendix G for details).




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Planning Report No. 100988     Murray & Associates (QLD) Pty Ltd               February 25