sdap-response-template-v1-6-10-1 · OPW15/0240

_______________________________________________________________________________________________________________________________________________Callaghan & Toth Pty Ltd

Performance outcomes                      Acceptable outcomes                                              Response       Comment
                                          AND

                                          AO7.5 Measures are to be incorporated as part of siting                        The directional drilling of the rising main means there are no
                                          and design of the development to protect and retain                             impacts to mangroves, and very limited impacts to the
                                          identified ecological values and underlying ecosystem                           coastal ecosystems. The impact areas are the launch pit,
                                          processes within or adjacent to the development site to                         connection pits and exit pits which will be rehabilitated with
                                          the greatest extent practicable. This includes:                                 vegetation.
                                          (1) maintaining or restoring vegetated buffers between
                                               development and coastal waters to the extent
                                               practicable, unless the development is within ports or
                                               airports, or is marine development
                                          (2) maintaining or enhancing the connectivity of
                                               ecosystems in consideration of the cumulative effect
                                               of the development in addition to existing developed
                                               areas
                                          (3) retaining coastal wetlands, seagrass beds and other
                                               locally important feeding, nesting or breeding sites for
                                               native wildlife.
                                          AND

                                          AO7.6 Measures are incorporated as part of siting and                          The directional drilling of the new rising main means there is
                                          design of the development to maintain or enhance water                          minimal potential impacts to the water quality of Weyba
                                          quality to achieve the environmental values and water                           Creek. Works will be conducted under a Construction EMP
                                          quality objectives outlined in the Environmental Protection                     which will detail measures for equipment and E&SC to
                                          (Water) Policy 2009.                                                            minimise impacts to water quality, in the areas adjacent to
                                          AND                                                                             the creek.
                                                                                                                          The emergency works were such to limit impacts to the
                                                                                                                          coastal ecosystems. The rising main was isolated quickly
                                                                                                                          and sewage flows redirected away from the broken rising
                                                                                                                          main. Contaminated soil in Weyba Creek was removed and
                                                                                                                          taken offsite.
                                                                                                                          Water quality testing has demonstrated that there has been
                                                                                                                          no long term impact to water quality objectives of the EPP
                                                                                                                          2009.
                                          AO7.7 Development avoids the disturbance of acid                               Works will be conducted under a CEMP and Unitywater
                                          sulphate soils, or where it is demonstrated that this is not                    construction standards. ASS will be managed to comply
                                          possible, the disturbance of acid sulphate soils is carefully                   with current standards and any PASS material will be
                                          managed to minimise and mitigate the adverse effects of                         treated accordingly.
                                          the disturbance on coastal resources.

PO8 Coastal protection work is            AO8.1 Coastal protection work is only undertaken to              N/A            N/A
undertaken only as a last resort where    protect existing permanent structures from imminent


State development assessment provisions                                   Module 10 — Coastal protection         10.1 Tidal works, or development in the coastal management district state code
6 July 2015 V1.6                                                                                                                                                                   Page 8 of 16