Attachment 1 - Stormwater Management Plan

                                                        Ocean Protect | OceanGuard Technical Design Guide

Introduction
The OceanGuard technology is a gully pit basket designed to fit within new and existing stormwater pits
targeting pollution in stormwater runoff. The system is offered with a choice of filtration bag liners, designed
to remove gross pollutants, total suspended solids and attached pollutants. It can be adopter as a stand-
alone technology or as part of a treatment train with our StormFilter or Jellyfish filtration products.

The filtration bag, filtration cage and flow diverter work together to maximise the flow treated, pollutant
capture, hydraulic efficiency and ultimately retaining captured pollutants dry. OceanGuard pit inserts are
highly effective, easy to install and simple to maintain.

Operational Overview
The OceanGuard is installed into field or kerb inlet gully pits. The flow diverter at top of the unit has a rigid
recycled plastic HDPE skirt that is installed against the walls directing all incoming stormwater flows into the
filtration bag.

The stormwater is then filtered via direct screening through the filtration bag liner ensuring that any debris
larger than the openings in the filtration bag are captured and retained.

During large storm events the water elevation in the filtration bag can rise and peak flows are internally
bypassed through slots created in the flow diverter which has no moving parts that may prematurely fail.

At the end of the storm event debris and stormwater rest at the base of the filtration bag where the stored
material will start to dry until the next storm event.




                                      Figure 1: OceanGuard components




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