In this issue



   - In this Edition



The Game Changes

-  Jellyfish Moves to SW360



Cyclone Debbie

-  Storm-tide Flooding

-  Emergency Evacuation



Wrap Up

   - See you next month



Visit our website: 




07 3398 4992



Hello everyone and welcome to the March edition of “Keep Things Flowing”, the monthly newsletter presented by Storm Water Consulting.

In this month’s newsletter we bring you some news from the water quality sector and we take a very brief look at the effects of Cyclone Debbie.


Jellyfish Moves to Stormwater 360

Over the past 12 months the stormwater quality sector has had a real shake up, with new water quality treatment products coming into the market place and going through various Council’s rigorous approval processes.

Previously there were three main providers offering tertiary stormwater treatment products. These were:

·         Stormwater 360 – StormFilter

·         SPEL – SPELFilter

·         HUMES – Jellyfish

Property developments that triggered the State Planning Policy or local Council’s policies to meet water quality objectives were required to utilise either a traditional bio-retention basin or one of the products listed above. Earlier this month we were notified that Stormwater 360 had become the exclusive Australian license holder for the Jellyfish. This is major news in that one company holds exclusive licenses for two tertiary treatment devices.

For those of you who do not know how a Jellyfish device works, we have summarised the concept below.

The Jellyfish system works by discharging polluted stormwater into the bottom of the system and forcing the stormwater up through membranes, filtering runoff and removing key pollutants. The Jellyfish device is located underground with access through a manhole. The Jellyfish device is capable of achieving water quality objectives without the need for pre-treatment of runoff. The Jellyfish filter device is pictured below.

If your development requires water quality treatment we would be pleased to provide you with assistance in designing a treatment train for your site. When designing a treatment train we look at the most practical and economical stormwater treatment option for the site.


Cyclone Debbie

Earlier this week Cyclone Debbie made landfall in and around Bowen, North Queensland. Along with the destructive winds and heavy rainfall brought about by the cyclone, Bowen and many other areas experienced significant storm-tide inundation.

Storm-tide flooding is the inundation of dry land from a rise in sea levels or tidal event. Storm-tide inundation usually occurs in severe weather events such as cyclones. As hydraulic engineers we do account for storm-tide flooding when undertaking the design of a development. Councils in South East Queensland have undertaken coastal flood modelling and provide storm tide flood levels for all properties affected by storm-tide flooding (up to a 1 in 100yr ARI event).

Cyclones trigger evacuation procedures for areas expected to be impacted by the cyclone. A stormwater emergency management plan is required for developments that are significantly impacted by storm-tide inundation or if the access road is significantly impacted by storm-tide inundation. A stormwater emergency management plan describes procedures to follow before, during and after a storm-tide (or other) flood event. The stormwater emergency management plan also provides details about emergency services, access to storm information, evacuation routes and flood level information.  

If you are proposed to develop in an area known to be affected by storm-tide or other types of flooding you may be required to provide a stormwater emergency management plan. We are able to assist with the preparation of such plans. Please contact us to find out how we can assist.


Wrap Up

We hope you enjoyed this edition of Keep Things Flowing. Feedback on articles presented is always welcomed and for further information on any of the articles presented please don’t hesitate to contact our office.

As always, Keep Things Flowing!

The Storm Team



To unsubscribe from this newsletter send a reply email and you will be removed from our mailing list.