Ocean Protect OceanGuard Manual

OceanGuardTM
Operations & Maintenance Manual

Ocean Protect | OceanGuard Operations & Maintenance Manual
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Table of Contents
Introduction ........................................................................................................................................... 2
Why do I need to perform maintenance?.................................................................................................... 2
Health and Safety................................................................................................................................... 3
Personnel health and safety......................................................................................................................... 3
How does it Work? ................................................................................................................................ 4
Maintenance Procedures....................................................................................................................... 4
Primary Types of Maintenance .................................................................................................................... 4
Minor Service................................................................................................................................................ 5
Hand Maintenance.................................................................................................................................... 5
Vacuum Maintenance............................................................................................................................... 5
Major Service (Filter Bag Replacement)....................................................................................................... 5
Additional Reasons of Maintenance ............................................................................................................ 6
Hazardous Material Spill........................................................................................................................... 6
Blockages................................................................................................................................................... 6
Major Storms and Flooding ...................................................................................................................... 6
Disposal of Waste Materials......................................................................................................................... 6
Maintenance Services............................................................................................................................ 6
Rev: 1 Last Updated: March 2019

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Introduction
The primary purpose of stormwater treatment devices is to capture and prevent pollutants from entering
waterways, maintenance is a critical component of ensuring the ongoing effectiveness of this process. The
specific requirements and frequency for maintenance depends on the treatment device and pollutant load
characteristics of each site. This manual has been designed to provide details on the cleaning and
maintenance processes as recommended by the manufacturer.
The OceanGuard technology is a gully pit basket designed to fit within new and existing gully pits to remove
pollution from stormwater runoff. The system has a choice of Filtration liners, designed to remove gross
pollutants, total suspended solids and attached pollutants as either a standalone technology or as part of a
treatment train with our StormFilter or Jellyfish Filtration products. OceanGuard pit baskets are highly
effective, easy to install and simple to maintain.
Why do I need to perform maintenance?
Adhering to the maintenance schedule of each stormwater treatment device is essential to ensuring that it
functions properly throughout its design life.
During each inspection and clean, details of the mass, volume and type of material that has been collected
by the device should be recorded. This data will assist with the revision of future management plans and help
determine maintenance interval frequency. It is also essential that qualified and experienced personnel carry
out all maintenance (including inspections, recording and reporting) in a systematic manner.
Maintenance of your stormwater management system is essential to ensuring ongoing at-source control of
stormwater pollution. Maintenance also helps prevent structural failures (e.g. prevents blocked outlets) and
aesthetic failures (e.g. debris build up), but most of all ensures the long term effective operation of the
OceanGuard.

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Health and Safety
Access to pits containing an OceanGuard typically requires removing (heavy) access covers/grates, but
typically it is not necessary to enter into a confined space. Pollutants collected by the OceanGuard will vary
depending on the nature of your site. There is potential for these materials to be harmful. For example,
sediments may contain heavy metals, carcinogenic substances or sharp objects such as broken glass and
syringes. For these reasons, there should be no primary contact with the waste collect and all aspects of
maintaining and cleaning your OceanGuard require careful adherence to Occupational Health and Safety
(OH&S) guidelines.
It is important to note that the same level of care needs to be taken to ensure the safety of non-work
personnel, as a result it may be necessary to employ traffic/pedestrian control measures when the device is
situated in, or near areas with high vehicular/pedestrian activity.
Personnel health and safety
Whilst performing maintenance on the OceanGuard pit insert, precautions should be taken in order to
minimise (or when possible prevent) contact with sediment and other captured pollutants by maintenance
personnel. In order to achieve this the following personal protective equipment (PPE) is recommended:
Puncture resistant gloves
Steel capped safety boots,
Long sleeve clothing, overalls or similar skin protection
Eye protection
High visibility clothing or vest
During maintenance activities it may be necessary to implement traffic control measures. Ocean Protect
recommend that a separate site specific traffic control plan is implemented as required to meet the relevant
governing authority guidelines.
The OceanGuard pit insert is designed to be maintained from surface level, without the need to enter the
pit. However depending on the installation configuration, location and site specific maintenance
requirements it may be necessary to enter a confined space occasionally. It is recommended that all
maintenance personnel evaluate their own needs for confined space entry and compliance with relevant
industry regulations and guidelines. Ocean Protect maintenance personnel are fully trained and carry
certification for confined space entry.

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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
Minor Service
Filter bag inspection and evaluation
Removal of capture pollutants
Disposal of material
2-4 Times Annually
Major Service
Filter Bag Replacement
Support frame rectification
As required

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Maintenance requirements and frequencies are dependent on the pollutant load characteristics of each site.
The frequencies provided in this document represent what the manufacturer considers to be best practice
to ensure the continuing operation of the device is in line with the original design specification.
Minor Service
This service is designed to return the OceanGuard device back to optimal operating performance. This type
of service can be undertaken either by hand or with the assistance of a Vacuum unit.
Hand Maintenance
1. Establish a safe working area around the pit insert
2. Remove access cover/grate
3. Use two lifting hooks to remove the filtration bag
4. Empty the contents of the filtration bag into a disposal container
5. Inspect and evaluate the filtration bag
6. Inspect and evaluate remaining OceanGuard components
(i.e. flow diverter, filtration cage and supporting frame)
7. Rejuvenate filtration bag by removing pollutant build up with a stiff brush, additionally the filtration
bag can be washed using high pressure water
8. Re-install filtration bag and replace access cover/grate
Vacuum Maintenance
1. Establish a safe working area around the pit insert
2. Remove access cover/grate
3. Vacuum captured pollutants from the filtration bag
4. Remove filtration bag
5. Inspect and evaluate the filtration bag
6. Inspect and evaluate remaining OceanGuard components
(i.e. flow diverter, filtration cage and supporting frame)
7. Rejuvenate filtration bag by removing pollutant build up with a stiff brush, additionally the filtration
bag can be washed using high pressure water
8. Re-install filtration bag and replace access cover/grate
Major Service (Filter Bag Replacement)
For the OceanGuard system, a major service is a reactionary process based on the outcomes from the
minor service.
Trigger Event from Minor Service
Maintenance Action
Filtration bag inspection reveals
damage
Replace the filtration bag[1]
Component inspection reveals damage
Perform rectification works and if
necessary replace components[1]
[1] Replacement filtration bags and components are available for purchase from Ocean Protect.

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Additional Reasons of Maintenance
Occasionally, events on site can make it necessary to perform additional maintenance to ensure the
continuing performance of the device.
Hazardous Material Spill
If there is a spill event on site, all OceanGuard pits that potentially received flow should be inspected and
cleaned. Specifically all captured pollutants from within the filtration bag should be removed and disposed
in accordance with any additional requirements that may relate to the type of spill event. All filtration bags
should be rejuvenated (replaced if required) and re-installed.
Blockages
The OceanGuards internal high flow bypass functionality is designed to minimise the potential of
blockages/flooding. In the unlikely event that flooding occurs around the stormwater pit the following steps
should be undertaken to assist in diagnosing the issue and implementing the appropriate response.
1. Inspect the OceanGuard flow diverter, ensuring that they are free of debris and pollutants
2. Perform a minor service on the OceanGuard
3. Remove the OceanGuard insert to access the pit and inspect both the inlet and outlet pipes, ensuring
they are free of debris and pollutants
Major Storms and Flooding
In addition to the scheduled activities, it is important to inspect the condition of the OceanGuard pit insert
after a major storm event. The inspection should focus on checking for damage and higher than normal
sediment accumulation that may result from localised erosion. Where necessary damaged components
should be replaced and accumulated pollutants disposed.
Disposal of Waste Materials
The accumulated pollutants found in the OceanGuard must be handled and disposed of in a manner that is
in accordance with all applicable waste disposal regulations. When scheduling maintenance, consideration
must be made for the disposal of solid and liquid wastes. If the filtration bag has been contaminated with
any unusual substance, there may be additional special handling and disposal methods required to comply
with relevant government/authority/industry regulations.
Maintenance Services
With over a decade and a half of maintenance experience Ocean Protect has developed a systematic
approach to inspecting, cleaning and maintaining a wide variety of stormwater treatment devices. Our fully
trained and professional staff are familiar with the characteristics of each type of system, and the processes
required to ensure its optimal performance.
Ocean Protect has several stormwater maintenance service options available to help ensure that your
stormwater device functions properly throughout its design life. In the case of our OceanGuard system we
offer long term pay-as-you-go contracts, pre-paid once off servicing and replacement filter bags.
For more information please visit www.OceanProtect.com.au