18-0165B Stormwater Management Report_Issue D

batter.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        5.     All right angle subsoil pipe bends are to be created using 2x 45°                or approved equivalent for the duration of construction.
                                                                                                                                                                                                            OUTLET 9/1                               Existing Stormwater Pit                                  1 in 2 batter.




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          SW
                                                                                                                                                                                                                                                     to be removed.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      bends.




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              SW
                                                                               Proposed bio-retention basin to
                                                                               accept stormwater discharge from
                                                                               all building roofs, majority hardstands

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  SW
                                                                                                                                                                                                                       SW




                                                                               and landscape areas. Refer detail on C04.                                                                                                                  PIT 3/4                              450Ø RCP at 1.5% below bio-basin.                100Ø slotted underdrain collector         PIT 2/4                                                             Sandstone retaining wall.                       PIT 1/4                                                                                                                                                          SW
                                                                               Total surface area = 250m2                                                                                                                                                                      Not shown for clarity. Refer bio-basin           pipes with slotted pipe clean-out
                                                                                                                                                                                                                                                                                                                                                                                                                                              Typical along stepped
                                                                               Filter media Area - 120m2                                                                                                                                                                       details.                                         risers (capped) at ends. Typical.                                                                                                                                                                                                                                                                        SW
                                                                                                                                                                                                                                                                                                                                                                                                                                              bio-retention basin.
                                                                                                                                                                      900Ø                  I.L. - T.B.C.                                                                                                                                                                                                                                                                                     SW               SW                         SW                                   SW                              SW
                                                                                                                                                            SW                              SW                              SW                SW                      SW                  SW                    SW                  SW                SW                      SW                  SW                   SW                  SW                  SW
                                                                                                                                                                                                                                                                                                                                                                                                 450Ø RCP at 1.5% below bio-basin.
                                                                                                                                                                                                                                                                                                                                                                                                 Not shown for clarity. Refer bio-basin
                                                                                                                                                                      EXISTING PIT 4/4                                                                                                                                                                                                           details.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Issue    Made By    Date        Description                                                                            PROPOSED COMMERCIAL DEVELOPMENT                                                                                                                                                                                                  Scale : 1:200 AT A1                                               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.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      B        PC         19/10/18    SW tanks changed to blockwork                                                          CLIENT: HASS HOLDINGS PTY LTD
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Dwg No.: C03                                                      3. Check and verify all dimensions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C        BJW        O6/11/18    Bio-basins updated                                                                     Designed By : B.J. WINNING BEngTech (Civil)                        Drawn By : PC                  Date : 29/05/18                                                                                                                                                                                    prior to commencement of work.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      D        BJW        O7/11/18    General amendments                                                                     Certified By : B.R. CROMAR BEng (Civil), MIEAust, CPEng, RPEQ, NPER                               Date : 11/09/18                              Ph: (07) 5444 5578    Email: [email protected]                       STORMWATER DRAINAGE