16-001014-02A (Ultimate SCMMP)

                                                                                                                                 HumeGard® GPT
HumeGard® GPT
The HumeGard® system is a Gross Pollutant Trap (GPT) that is specifically designed
to remove gross pollutants and coarse sediments ≥ 150 microns, from stormwater
runoff. A wide range of models are available to provide solutions for normal and
super-critical flow conditions.


The patented HumeGard® GPT incorporates a unique               • It has low operational velocities
floating boom and bypass chamber to enable the                   Flow velocity in the storage chamber is <0.2 m/s to
continued capture of floating material, even during peak         ensure the comb self-cleans and improves settling of
flows. The configuration also prevents re-suspension             coarse sediment.
and release of trapped materials during subsequent
                                                               • It retains floating material even in bypass
storm events.
                                                                 All GPTs bypass at high flows. The patented floating
                                                                 boom will capture and retain floating materials even
The HumeGard® GPT is designed for residential and
                                                                 when bypass occurs.
commercial developments where litter and sediment are
the target pollutants. It is particularly useful in retrofit   • It provides cost effective treatment for litter and

applications or drainage systems on flat grades where            coarse sediments

low head loss requirements are critical, and in high             The system’s large capacity and long maintenance

backwater situations.                                            intervals reduces the overall lifecycle costs in
                                                                 comparison with other treatment measures.

The value of the HumeGard® GPT has proven it to                • It can reduce the footprint of the stormwater
be one of the most successful treatment devices in               treatment train
Australia today:                                                 Installation of a HumeGard® GPT prior to vegetated
                                                                 treatment measures can assist in reducing their
• The system provides high performance with negligible           overall footprint.
  head loss
                                                               • It maximises above ground land use
  The HumeGard® GPT has a head loss ‘k’ factor of 0.2,
                                                                 The HumeGard® GPT is a fully trafficable solution, so
  important for retrofit and surcharging systems.
                                                                 it can be installed under pavements and hardstands to
• It captures and stores a large volume of pollutants            maximise land use on constrained sites.
  For pollutant export rates reported by Australia Runoff
                                                               • It is easy to maintain
  Quality (1 m3/hectare/year), the HumeGard® GPT is
                                                                 Cleanout of the HumeGard® GPT can be performed
  sized for maintenance intervals up to annual durations.
                                                                 safely and effectively from the surface using a
• It uses independently proven technology                        vacuum truck.
  The system was developed and tested by Swinburne
                                                               • It is made from quality componentry
  University of Technology, Australia, in 1998, to
                                                                 All internal metal components are made from
  demonstrate compliance with operational criteria from
                                                                 304 stainless steel or fibreglass, and the system
  the Victorian EPA.
                                                                 undergoes rigorous quality control prior to dispatch.




                                                                                                             HumeGard® GPT   1