The Lake Macquarie Project Management Committee was
established to implement the recommendations of the
Premier’s Taskforce on Lake Macquarie.
in 1999 to address the issues contributing to the degradation
of the Lake environment. These include sedimentation
and nutrient enrichment from stormwater run-off.
The emphasis of the work program is to treat the problem
at the source, by addressing the cause of the Lake’s
problems arising from its catchment and foreshore. It
also includes removal of some sediment and ooze from
a number of bays, as well as some maintenance and navigation
dredging of the entrance channels.
The Lake Macquarie Project Management Committee is
responsible for the oversight of the implementation
of environmental improvements to the Lake, which are
delivered through the Office of the Lake Macquarie
and Catchment Coordinator. The work by the Office of
the Lake Macquarie and Catchment Coordinator is integrated
with, but additional to the existing activities of
Government agencies and Councils with regard to estuary
and catchment management.
The range of activities undertaken by the Office of
the Lake Macquarie and Catchment Coordinator include
the implementation of the work program, increasing
community understanding and awareness of the Lake
and its catchment and scientific monitoring of key
environmental indicators. Stormwater treatment devices
can range from pre-cast concrete boxes that capture
or filter coarse sediment and litter, to constructed
wetlands and vegetated swales (watercourses) that
remove finer sediments and nutrients through natural
physical, chemical and biological processes.
Foreshore stabilisation and vegetation is carried out
to prevent foreshore erosion on public lands. It normally
consists of construction of a natural sloping beach
and planting of native species. The vegetation also
provides a filter for run-off into the Lake. While high
levels of exposure to wave action in some areas mean
that rock work is needed, endeavours are made to mimic
nature as much as possible.