Attachment 1 - Stormwater Management Plan

                                           Ocean Protect | OceanGuard Operations & Maintenance Manual

How does it Work?
OceanGuard is designed to intercept stormwater as it enters the stormwater pits throughout a site. The
OceanGuard has diversion panels that sit flush with the pit walls, this ensures that as stormwater enters at
the top of the pit it is directed to the middle of the insert where the Filtration bag is situated. The filtration
bag allows for screening to occur removing 100% of pollutants greater than the opening of the filtration
material (200micron, 1600micron bags available).




During larger rain events the large flows overflow slots in the flow diverter of the OceanGuard ensure that
the conveyance of stormwater is not impeded thus eliminating the potential for surface flooding. As the flow
subsides, the captured pollutants are held in the OceanGuard Filtration bag dry. The waste then starts to dry
which reduces the magnitude of organic material decomposition transitioning between maintenance
intervals.

Maintenance Procedures
To ensure that each OceanGuard pit insert achieves optimal performance, it is advisable that regular
maintenance is performed. Typically the OceanGuard requires 2-4 minor services annually, pending the
outcome of these inspections additional maintenance servicing may be required.


Primary Types of Maintenance
The table below outlines the primary types of maintenance activities that typically take place as part of an
ongoing maintenance schedule for the OceanGuard.

                                        Description of Typical Activities                       Frequency

                                      Filter bag inspection and evaluation
    Minor Service                         Removal of capture pollutants                     2-4 Times Annually
                                               Disposal of material

                                            Filter Bag Replacement
    Major Service                                                                               As required
                                          Support frame rectification




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