In this issue

 

Welcome

†† - Whatís to Come

 

 

SPEL Breakfast Seminar

-  Review

 

 

Frequently Asked Question

-  Overland Flow FPA

 

 

Christmas Break

†† - Holiday Closure

 

 

Wrap Up

†† - See you next month

 

Visit our website:

www.stormw.com.au 

 

 

Phone:

07 3398 4992

 

Welcome

Hello everyone and welcome to the November edition of ďKeep Things FlowingĒ, the monthly newsletter presented by Storm Water Consulting.

In this monthís newsletter we review a recent SPEL Breakfast Seminar, we answer another frequently asked question and we bring you the latest news from Storm.

 

SPEL Breakfast Seminar

Earlier this month Jack and Steve attended SPELís Breakfast Seminar held at Southbank, Brisbane. The special guest speakers at the seminar were Andy Reese from AMEC Foster Wheeler and Jack Mullaly from Ideanthro.

Jack Hu (left), Jack Mullaly (centre), Andy Reese (right).

Andy shared his knowledge on the history of how local government stormwater utilities came about in the USA. Utilities such as stormwater and sewer are directly linked to household use, hence in the USA, the general public deems it reasonable to be charged on a user-pays basis. As a result, these utilities are well-funded and well-maintained.

Here is Australia, stormwater drainage infrastructure isnít driven directly by household use but rather individual Councilís allocation of funding. As a result, stormwater drainage infrastructure and maintenance only becomes a problem when it rains, hence these utilities are often under-funded and poorly maintained. The feedback from local governments and residents in the USA that have adopted the user-pays basis has been overwhelmingly positive with significant improvements in the stormwater utility sector for a relatively low user fee. Whilst here in Australia we are generally not in support of another form of levy, perhaps Councils could allocate a specific portion of rates received, dedicated solely to the maintenance and construction of stormwater infrastructure.

Jack Mullaly spoke about water quality treatment of stormwater runoff and how a different approach to setting water quality objectives would be fairer for developers and more beneficial to the environment. Under the current guidelines, developments are required to decrease the pollutants discharging from the site by a set percentage. This means that for developments with a higher concentration of pollutants, it is easier to meet water quality objectives than for a development the same size with lower concentration levels of pollutants. Also, the development with the higher concentration level of pollutants would still discharge more pollutants than the lower concentration level site.

Jack spoke about an alternative approach which would be to set a target pollutant level based on the area and use of the development. This would mean that developments of the same size but different use, would discharge the same amount of pollutants. Likewise, developments of the same use but different size would discharge pollutants proportional to the size of the sites. Jackís speech certainly brought to light some points for further discussion in future stormwater forums.

 

Frequently Asked Question

Question:

Brisbane City Councilís City Plan mapping shows that my property is located within the Overland Flow Flood Planning Area. What does this mean for my property?

Answer:

The Overland Flow Flood Planning Area shown on Councilís interactive mapping is only indicative that overland flow is expected in the area. It does not show the exact location of overland flow through a property. To determine the exact location of overland flow and the associated development impacts, a hydraulic engineer is required. The result of an assessment may find that the overland flow covers more or less site area than shown on the Flood Planning Area. If your development site is impacted by any of Councilís Flood Planning Areas we would be pleased to provide you with assistance in determining the flooding characteristics and associated development constraints with your property. †

 

Christmas Break

Storm Water Consulting will be closing over the Christmas Ė New Year period. The office will be closed from Wednesday 21st December 2016 Ė 6th January 2016, with the office reopening on Monday 9th January 2016.

 

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 donít hesitate to contact our office.

As always, Keep Things Flowing!

The Storm Team