211109 OPW Information Response Letter

                                            Appendix B for updated architectural drawings and
                                            Appendix C for Landscape drawings
 3     Geotechnical Certification           Refer to Appendix F for geotechnical certifications
 4     Geotechnical Report                  Refer to Appendix F for updated geotechnical report
 5     Earthworks                           Refer to Appendix A for engineering response and
                                            updated earthworks
 6     CMP                                  Refer to Appendix E for the Construction Management
                                            Plan

Water Quality and Stormwater
      Issue                                 Response
 7    Stormwater Design – hydraulic         Refer to Appendix A for engineering response and
      design                                updated stormwater documentation.
 8    Stormwater Design – pipe sizes        Refer to Appendix A for engineering response and
                                            updated stormwater documentation.
 9     Stormwater Design – re-              No works are now being undertaken in verge and
       instatement works agreements         therefore no cross-overs will be impacted. Refer to
                                            Appendix A for engineering response and updated
                                            stormwater documentation.
 10    Pollutant Reduction Target           Refer to Appendix A for engineering response and
       Calculations                         updated stormwater documentation.
 11    Currency of References               Refer to Appendix A for engineering response and
                                            updated stormwater documentation.
 12    Swale drain and Rubble Pit           Refer to Appendix A for engineering response and
                                            updated stormwater documentation.
 13    Flow velocities                      Refer to Appendix A for engineering response and
                                            updated stormwater documentation.
 14    Biobasin Retaining Wall Heights      Refer to Appendix A for engineering response and
                                            updated stormwater documentation.
 15    Biobasin Maintenance                 Link to “Guide to the Cost of Maintaining Bioretention
                                            Systems” is contained with the SWMP, the
                                            maintenance regime detailed in this document is our
                                            intention.
 16    Filtration Prior to Discharge        Refer to Appendix A for engineering response and
                                            updated stormwater documentation.

Landscaping and Vegetation Clearing/Retention
      Issue                               Response
      Impacted Street Trees               Refer to Appendix D for updated Arborist Report
 17   Street Fencing                      Refer to Appendix C for updated landscape drawings
 18   Frontage Landscaping Buffer         Refer to Appendix C for updated landscape drawings


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