and welcome to the April edition of “Keep Things Flowing”, the
monthly newsletter presented by Storm Water Consulting.
month’s newsletter we bring you information about a flood
mitigation product and we look at an example of poor sediment and
erosion control on a development. Let’s begin this month’s
newsletter with a poll question!
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a property for protection from flood water is often a time
consuming and labour intensive job. Sand bagging also requires
advance notice of an impending flood event so that sand bags can be
prepared and stacked in a protective arrangement.
recently informed about a product that could be stored on a
property with minimal storage space, could be set up in a matter of
minutes and claims to perform in the same manner as a traditional
sand bag. The “FloodSax Instant Sandbag” is a sand less sand bag
filled with hundreds of absorbent crystals that absorb water and
form a protective barrier much like a traditional sand bag. Each
FloodSax is biodegradable and environmentally safe, weighs
approximately 200g and can absorb up to 22L of water.
could be great to use on properties that experience inundation
during heavy or prolonged rainfall events as the setup time is
significantly reduced compared to a traditional sandbag barrier.
There is obviously a downside to this solution, the cost.
information about the FloodSax product can be viewed on the
FloodSax website using the link below:
from a building or construction site is a major source of
stormwater pollution. Once sediment laden stormwater enters a
waterway it can cause both short term and long term environmental
impacts. It is for this reason that all construction and building
sites are required (under the Sustainable Planning Act 2009) to
implement adequate sediment and erosion control measures. Earlier
this month during Brisbane’s significant rainfall event caused by
Ex Tropical Cyclone Debbie, we witnessed sediment laden runoff
entering a relatively clean flow path. We took the time to explore
upstream to determine the cause of the polluted runoff. The photo
presented below shows the polluted runoff entering a relatively
clean flow path. Notice the dirty water from the top of the photo
entering the clear water at the bottom of the photo.
Photo 1 – Sediment laden
runoff entering the flow path.
We then searcher
upstream to find the cause of the polluted runoff. We took a video
of the stormwater in the kerb and channel as it flowed towards the
flow path shown in Photo 1.Click the picture below to play the
Video 1 – Poor Sediment and
runoff came from several construction sites. Brisbane City Council
investigates water pollution resulting from the release of sediment
from a building or construction site. If appropriate sediment and
erosion control measures are not implemented Council may issue on
the spot fines.
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.
Keep Things Flowing!
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