RFI - Attachment H - Stormwater Management Plan_Issue C_

Treatment Train
Specifications

                                                                  Regardless of the system type, the media filtration system
Performance Specification                                         shall consist of the following components;

The stormwater filtration treatment train shall consist           •   Inlet energy dissipation
of         x 200 micron gully pit basket/s and        x           •   Cartridge section
460/690mm passive, siphon-actuated, radial flow, self             •   Outlet section to bypass storm flows and convey
cleaning media filtration cartridge system/s operating at a           treated stormwater
specific flow rate of not more than 1.5L/s/m2.
                                                                  •   Access Lids in roof slab for access to Cartridges
                                                                  •   Siphon actuated cartridges filled with proprietary
The gully pit basket system shall consist of the
                                                                      ZPG™ filter media
following components;
                                                                  •   Specific flow rate of each individual cartridge limited
•   Removable 200 micron Nylon monofilament Precision
                                                                      not to exceed 1.5L/s/m2
    woven Filtration Bag
                                                                  •   Air Lock Cap complete with one way Air Valve Flap
•   Fixed Galvanised Mesh Cage (no greater than 80mm x
                                                                  •   Outer Hood complete with Scrubbing Regulators
    80mm) around the Filtration Bag
                                                                  •   Automated high-energy turbulence on the screen face
•   Recycled modified ABS plastic to seal the unit into the pit
                                                                      (only) at the end of storm flows to flush pollutants from
•   By-pass mechanism above the Filter with no moving parts
                                                                      the cartridge
•   System rigidly fixed to the walls of the pit.
                                                                  •   Centre Drainage Tube complete with Buoyancy Float
The media filtration system shall be located within the           •   Individual Cartridge Flow Restrictor Disc
following structure.
                                                                  •   ¼ Turn Bayonet Fittings
•   Manhole                                                       •   Under drain manifold to convey treated stormwater to
•   DownPipe                                                          the receiving environment.
•   Linear
•   Vault
•   Large Box
•   Detention.




2   Stormwater360 Operations and maintenance