Digital Train Radio System Como Site Review of Environmental ...

contamination in the vicinity of the site. No waste dumping, soil discoloration, odours and/or
similar were noticed.
RailCorp does not have any record or evidence that the site may be contaminated. There are no
contaminated sites in the suburb of Como listed on the NSW register.
Hazardous materials will not be used during construction and operation and, therefore, the
proposed work will not result in any new site contamination.
Possible Control Measures
It is highly unlikely that the site can be contaminated by known activities or by contaminants
migrating from the known contaminated sites.
However, the limited investigation cannot exclude potential contamination as the result of
unknown past activities, either on the site or in the vicinity. There is a risk that contaminants
could be encountered during the proposed work. If encountered, contaminants may pose a risk
to the health of workers and the environment in general.
Risk Management and Possible Controls
The risk of encountering unknown contaminants during excavation will be managed in
accordance with RailCorp procedures, the Environmental Management Plan for DTRS project
and land contamination legislation.
The impact of potential contaminants will be minimised through a range of control measures
including, but not limited to, those outlined below.
• During excavation, site workers will look for signs of potential contamination such as the
presence of waste and/or other imported materials, odours, soil colouring, floating
layers in groundwater etc.
• If any contamination is encountered or suspected, work will stop immediately and the
site will be fenced off.
• Any potential contamination will be investigated and work resumed only when approved
by the Site Supervisor.
• A remedial action plan will be prepared before clean up operations begin.
• The site will be validated before work begins.
• Contaminated soil will be segregated in a special container before classification and
disposal.
The CEMP will further detail the proposed control measures.