Disposal of Waste
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Most regulatory authorities promulgate guidelines for the disposal of non-liquid wastes. Many of these are written with factory or production processes in mind, however they also apply to soil removal.
Waste is classified as Inert, Solid, Industrial, Hazardous or Scheduled. In NSW
for example, Inert waste may be disposed of at any depot or suitable site. Solid
waste must be taken to to one of a few licensed land fills. For the other classes
of waste, the options include treatment such as setting in concrete to effect a
change in class, shipping out of the region or long term safe storage.
Existing licensed landfills may make application to install cells within existing
depots for some classes of waste. Certain types of waste, irrespective of their
analysis, are classified as Inert or Solid. For all other wastes, their classification
depends on their analysis for total concentration of various potential contaminants.
In most cases, a Leachable Concentration Test (TCLP) is also needed.
Until July 1999 in NSW, an application had to be made to the NSW Department of Environment
and Conservation for disposal of all Solid Waste. The receiving depot was also required
to make an application in respect of the same waste. In July 1999, a self assessment
system began and an application to DEC is not required. The generator of the waste
must now certify the waste classification to the receiving depot. Officers of DEC
spot check truckloads of waste arriving at depots and issue fines for non compliance.
Heggies can sample and analyse soil and waste and advise on appropriate disposal.
We can provide reports suitable for submission to the depot, as most depots now
require such a report.
Liquid waste is usually processed and treated in a purpose designed facility so
the rules have a different approach. Liquids are classified as:
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Liquids which may be discharged directly into waters in accordance with a licence
issued under the Pollution Control Act 1970 |
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Liquids which may be discharged to sewer |
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Other liquids |
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