Erosion and Sediment Control
(Policy, Guidelines and Courses)
relation to the pressures that impact on the environmental quality
of the land in the Townsville region the City Council has developed
a number of responses.
TCC has recently completed an Assessment
of Loss of Undisturbed Vegetation by Satellite Imagery. This assessment
by Esys Consulting Pty Ltd, provides a snap shot comparison of Land
condition and vegetation
loss between 1996
This work complements the work by DNR (Land Cover Change) and provides
a more detailed analysis for these two time periods (1996
In combination, the studies show that there has been little loss
of vegetation in recent years in Townsville.
Use Constraints Analysis was established for Townsville Thuringowa
(TTSP Land Use Constraints Analysis 1997) and led to a final results
map. This was subsequently used in finalising the Regional Strategy
Plan and can also be used by Council for land use decisions. This
mapping include acid sulphate soils and erosion risk mapping (refer
TCC GIS and Soil Erosion Guidelines).
is currently undertaking a new town planning process under the Integrated
Planning Act (1997) or City Plan. This new plan is due for completion
by end of 2003 and will help to guide and direct efforts to manage
all environmental aspects of development and urban growth.
has prepared guidelines to help developers to comply with the city’s
environmental management strategies (Soil Erosion Sediment Control;
Open Space and Landscape Transitional Policies). Other guidelines
under preparation cover appropriate landscape design; architectural
aesthetics; the long-term maintenance requirement of the development;
the energy efficiency of the development; and the environmental
impact of the project.
TCC is now requiring development to set aside riverbank and wetland
environments in projects on the mainland (Riverside Gardens and
Fairfield) and on Magnetic Island (Horseshoe Bay and Nelly Bay).
are requiring Environmental Management Planning for large scale
developments and industry;
operational aspects of business and industry for environmental considerations
via devolved powers under the Queensland Environmental Protection
Act 1994 (Environmentally Relevant Activity assessment and requirements).
can report environmental offences (soil erosion, sediment, and rubbish)
under Sections 31 and 32 of the Environmental Protection Policy
(Water) to the EPA for action.
a native plant guide and CD-ROM for landscape architects and builders/developers
has also completed a Land Stability Study and adopted a Transitional
Planning Policy for Land Stability to ensure land is developed and
built on appropriately. Maps of steeply sloping land are also available
to assist Council in land use decision making
Soil Erosion and Sediment
(Policy, Guidelines and Courses)
City Council recognises that it can assist many in the community
to control and prevent soil erosion through well targeted programs
and leadership on the issue. We are working with the community in
various ways to demonstrate leadership and foster tangible improvements
in this area. For example, the Soil Erosion and Sediment Control
Policy is reducing erosion risk through targeted training and techniques,
and the use of Acid Sulphate Soils (ASS) training kits.
Erosion Risk Map is provided as part of the TCC Soil Erosion Guidelines.
light of the dangerous landslides of recent years in the city and
on Magnetic Island, TCC has brought in rules that require developers
to better address land stability constraints. TCC recognised that
it can assist many in the community to control and prevent soil
erosion through well targeted programs and leadership on the issue.
The TCC is working with the community in various ways to demonstrate
leadership and foster tangible improvements in this area.
assist planners, regulators and engineers with ability to effectively
manage and regulate development/building sites, Council in collaboration
with leading professionals in the soil and water management industry
has coordinated the formation of a five
day Soil Erosion and Planning Course for North Queensland. This
has meant accredited professionals are beginning to emerge across
the whole of Northern Australia throughout the development and building
industry. To date, 87 people from local government, engineering,
environmental and building industry have completed the course from
across Northern Australia (Mackay to Northern Territory). Of these
18 have become qualified as accredited Soil Erosion and Sediment
Control practitioners in Northern Australia. Click for information about the
erosion awareness training for builders and subcontractors has also
been coordinated by TCC and delivered to 80 people from the building
has also recently adopted a Transitional Planning Policy on Soil
Erosion and Sediment Control. This policy provides the guidelines
and directions for managing soil, water and sediment on development
sites. The Policy is accompanied by a set of flyers about
on-site Soil and Sediment Control. Council produced these documents
based on information obtained from Brisbane City Council and the
Engineering Institute of Queensland.
Environmentally Relevant Activities.
stated previously, annual monitoring and environmental audits are
conducted by Council’s Environmental Health Services (EHS) on licensed
and approved activities.
order to inform the public about the role that TCC Environmental
Health Services plays in the Community, the Department has developed
a series of interpretative posters under the title "…is
a part of environmental Health". See below:
Healthy Cities Plan
addition TCC Environmental Health Services with the support of other
Council departments, is producing a "Healthy
Cities Plan". This plan takes into account all aspects
of a Healthy City, including life style, recreation, natural environment,
water quality, air pollution, as well as traditional environmental
health concerns (e.g.. safe practices, waste management, preventative
health, and mosquitos).
has a number of programs in place in relation to the identification,
remediation and monitoring of contaminated sites. The Council is
responding to the problem of contaminated land in three main ways.
the first instance, the Council is working to improve knowledge
and risk management in relation to the large number of contaminated
sites in the Townsville local government area. Currently, the Council
is assembling a range of data sources on contaminated sites – some
held at State Government level, others locally – in order to produce
a more definitive assessment of existing and potential contaminated
initiative has been commenced in part due to the inadequacy of existing
information available. Presently, proven contaminated land which
is causing or may cause serious environmental harm is listed with
the Queensland EPA on the Contaminated Land Register (CLR). Sites
recorded on the Environmental Management Register (EMR), on the
other hand, pose a low risk to human health and the environment
under the current land use. Research by the Townsville City Council
has identified some sites which are listed on neither.
program of information gathering by the Council would incorporate
CLR, EMR and other sites into a Geographic Information System (GIS)
that would, in addition to location, cover ownership, level of contamination,
and existing or previous environmental management programs applied.
This will significantly improve the capacity of the Council to plan
and manage the risks potentially posed to the local environment.
Click here for EPA overview of
Contaminated Land in Townsville
second area where the City Council is responding is in requiring
detailed site assessments to be undertaken when applications or
proposals for use or change of use of registered contaminated land
are made then detailed site assessments are undertaken (e.g. Reid
third area of council response relates to on-ground remediation
works to reduce the risks posed by contaminated sites. TCC has
in place a number innovative urban stormwater management programs
designed to improve the quality of freshwater resources on land
and flowing into Cleveland Bay. Funded by the National Heritage
Trust and the Urban Storm Water Initiative, EMS has coordinated
these projects with consultants, Citiworks, and local community
groups. A number of these programs are outlined below.
Park is an old landfill along the Ross River and follow overland
stormwater flow problems has had erosion of the bank leading to
exposing of landfill rubbish. In 2000 this site was remedied with
best practice riverbank protection and overland stormwater management.
This work was based on Soil and Water Management Planning previously
carried out by Council for the ex-landfill site.
is one of Townsville’s contaminated sites, the scene of a disused
landfill. TCC has established a stormwater management system here
which is built into the abandoned landfill site. The trilock lined
gross pollutant trap feeds water into a constructed tidal saltwater
wetland for nutrient scrubbing and sediment removal. Both the gross
pollutant trap and the wetland are tidally flushed.
contaminated site in Townsville which the City Council is addressing
is the North Railway
Yards. A subsurface stormwater drain feeding from Walker Street
to the Ross Creek has been installed. Using riblock lining technology,
the 100m long stormwater pipe has been plastic lined. This has extended
the longevity of the concrete pipe and has prevented the intrusion
into the pipe of contaminated water from the railway yards soil.
management systems associated with light industrial areas are an
important means of minimising land contamination by preventing stormwater
pollution from reaching the waterways. These projects also have
the benefit of inculcating an appreciation of urban waterways and
therefore lending pressure against the lands becoming contaminated
in the first place. Some of these type of projects in place in Townsville
Lakes Stage 2:
This project is a linear stormwater treatment system incorporating
a litter trap, rock lined channel, gross pollutant trap with tri-lock
and a freshwater wetland and another rock lined channel. It polishes
stormwater from a light industrial area that feeds into the Lakes.
Sunfish, Townsville Port Authority and Conservation Volunteers Australia
are involved in the environmental monitoring of the site.
Court: This is a former Council trapezoidal drain that had become
choked with typha and paragrass. This drain serviced a light industrial
area and become an ineffective hydraulic corridor. This project
saw the grasses removed from the drain, riparian vegetation planted
along the banks, and a stormwater management system constructed.
This system consists of a gross pollutant trap, two rock ripples
and three constructed ponds.
Two lots were taken from a light industrial zone and an elaborate
stormwater management systems was developed. The system incorporates
three gross pollutant and sediment traps and a series of wetlands.
During low flows, water moves slowly through these wetlands, and
in high flows, stormwater flows straight over the top.
projects have been developed by TCC EMS in conjunction with Citiworks, Citiwaste, and local community
groups and businesses in Townsville, with funding from the Commonwealth
Government via the National Heritage Trust
and the Urban Stormwater
Initiative. Further information about these projects and information
sheets can be found via the hyperlinks in the Inland Waters Section of the SOE.