Attachment 7- Site Based Stormwater Management Plan

 

 

What are the impacts?
Soil, sediment and litter from building sites can be major
sources of stormwater pollution, and can cause:

* negative impacts on recreational fishing and
the seafood industry

© sediment build-up within waterways which
can lead to weed growth

e loss of valuable topsoil

 

© — significant public safety problems when washed

onto roads and intersections Mud and dirt on road after rain due to poor
on-site erosion and sediment control

¢ blocked drains and water sensitive urban design
features leading to flooding and increased

maintenance costs to the community

¢ significant harm to the environment of freshwater
and marine systems through the loss of valuable
seagrass habitat for marine creatures

¢ public health issues from increased algal blooms

¢ reduced recreational opportunities due to increased
turbidity

 

Sediment moving out of Moreton Bay into the ocean
through Jumpinpin

Erosion and sediment control on residential building sites

Principles of effective stormwater pollution control include:
¢ — sensible site planning

* — diversion of up-slope water (where appropriate)

¢ — stabilised site entry/exit point

¢ minimisation of site disturbance and duration of
disturbance

¢ installation of sediment controls along the lower
edge of the site

* appropriate location and protection of stockpiles
¢ early connection of roofwater downpipes

© — trap on-site run-off from tool, paint and concrete
washing and brick, tile and concrete cutting

* continual monitoring and maintenance of all
control measures

¢ compaction of backfilled trenches
* revegetation and stabilisation of the site

¢ development and implementation of Erosion
and Sediment Control Management Plans
when appropriate.

 

Control measures in place on a residential building site