ADG1290.21 Dewatering Management Plan_Rev1_02.02.22 · OPW21/0315

                                                                                      ADG Consulting Pty Ltd


     requirement for regular de‐sludging of sedimentation tank/s to suitable area onsite, if available (cost
     minimisation).
5.7 Nominated Hold Points
     In accordance with Development Approval RAP2020/0020 Condition 22(e), nominated hold points to be
     enacted during construction have been proposed to facilitate for certification by the suitably qualified
     person experienced with Acid Sulfate Soils, as well as Council Development Engineer to ensure all possible
     avenues for continual dewatering below permanent groundwater level, including around pipework
     bedding that outlet to waterways, are appropriately sealed. The nominated hold points regarding
     dewatering for this project are:
     1. Prior to commencement of dewatering/initial pump out
     2. At finished excavation level, prior to blinding layer application
     3. External to basement service installation trench opening/s prior to backfilling.

     The above nominated hold points are subject to confirmation by the consulting engineer, and liaison with
     council representatives and the Site Manager.




ADG1290.21 Dewatering Management Plan_Rev1_02.02.22                                                     Page 12