Stormwater Management Report

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           LEGEND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               CWDC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indicates      Clean Water Diversion Channel
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            (Refer DC-01 in IECA Std Dwg's)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               DWDC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indicates      Dirty Water Diversion Channel
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            (Refer DC-01 in IECA Std Dwg's)
                                                                                                                                                                                                                                                                                      Hatched area indicates
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indicates      Stockpile area
                                                                                                                                                                                                                                                                                      No Go Zone.


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indicates      Sediment Basin (Refer SB-01 to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            SB-06 in IECA Std Dwg's)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                FD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indicates      Fabric Drop Inlet (Refer FD-01 to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            FD-02 in IECA Std Dwg's)

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indicates      Rock Entry/Exit Pad (Refer Exit-01
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            to Exit-06 in IECA Std Dwg's)
                                                     CWDC                                                                            CWDC                                                       CWDC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indicates      Sediment Fence (Refer SF-01 to
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            SF-02 in IECA Std Dwg's)
                                                                                                                                                                                                                                           S   S   S

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           SEDIMENT BASIN NOTES




                                                                                                                                                                                                                                       S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ·   Water from the Sediment Basin is to be
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                discharged onto the stabilised outlet structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                or into the existing easement after 7 days from
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                the completion of a rainfall event.




                                                                                                                                                                                                                                   S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ·    A 'full of sediment' marker must be placed in the
                          DWDC




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                sediment basin to show the design capacity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                depth of the settling zone volume & to indicate
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                when removal of the sediment is to be carried




                                                                                                                                                                                                                               S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                out.
Existing concrete lined
stormwater swale.




                                                                                                                                                                                                                           S
                                                                                                                                                                                                                      S
                                                                                                                                                                                                                  S
                                                                                                                                                                                                         S
                                             DWDC




                                                                                                                                                                                                     S
                                                                                                                                                                                                                                                                                                                                    Inflow
                                                                                                                                                                                                                                                                                                                                                                                                                                        Maximum water level.                                        Internal Baffle.                                                                  Spillway.
                                                                                                                                                   Site office.




                                                                                                                                                                                            S
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Settling Zone
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Total Volume = 390 m3




                                                                                                                                                                                       S




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             3000


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    1200
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Sediment Storage Zone
                                                                  DWDC




                                                                                                                                                                          S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Total Volume = 196m3
                                                                                   DC




                                                                                                                                                                                  T
                                                                                 DW




                                                                                                                                                                                            SW
                                                                                                                                                                              T
                                                                                                                                                          S


                                                                                                                                                                      T
                                                                                         DWDC
                                                         Baffle



                                                                                                                                                                                       SW
                                                                                                                                                                                                                                                                                                                                                                                                                                   TYPICAL SEDIMENT BASIN SECTION
                                                                                                                                                                  T




                                                                                                                                                                                                                      SW
                                                                         Baffl




                                                                                                                                                   S


                                                                                                                                                              T




                                                                                                                    DW                                                                                       SW
                                                                          e




                                                                                                                      DC
                                                                                                                                                                          SW




                                                                                                                                            DWDC
                                                                                                                                                                                                SW
                                                                                                                                                          T
                                                                    SW




                                                                                                                                                                                  SW
                                 Spillway wier &                                                                                SW           SW    SW
                                                    SW                             SW                   SW                 SW
                                 outlet pump.                       FD

                                                                                           Existing SW Pit & line to be
                                                                                           disconnected & removed.

                                                                             Rock lined batter to
                                                                             existing SW Pit.

                                                                                                             FD




                                                                                                                                                                                                                                                                  Issue   Made By   Date       Description                                   PROPOSED COMMERCIAL DEVELOPMENT                                                                                                                                             Scale : 1:500 AT A1 U.N.O.                                          NOTES:
                                                                                                                                                                                                                                                                  0       PC        06/07/18   Preliminary ONLY - for DA Approval
                                                                                                                                                                                                                                                                                                                                             at NO. 5 TAYLOR COURT, COOROY
                                                                                                                                                                                                                                                       REVISION




                                                                                                                                                                                                                                                                  A       PC        06/07/18   Issue for BA                                                                                                                                                                                                              Job No.: 18-0165                                                    1. Do not scale drawings.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             2. Scale is correct at A1.
                                                                                                                                                                                                                                                                                                                                             CLIENT: HASS HOLDINGS PTY LTD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Dwg No.: C06                                                        3. Check and verify all dimensions
                                                                                                                                                                                                                                                                                                                                             Designed By : B.J. WINNING BEngTech (Civil)                        Drawn By : PC   Date : 29/05/18                                                                                                                                                prior to commencement of work.
                                                                                                                                                                                                                                                                                                                                             Certified By : B.R. CROMAR BEng (Civil), MIEAust, CPEng, RPEQ, NPER                Date : 11/09/18    Ph: (07) 5444 5578   Email: [email protected]            SEDIMENT & EROSION