Underground Petroleum Storage Tanks and Related Wastes - Code ...

Since the principal toxic hazard of sludge arises from the organic lead compounds,
it is important to reduce their concentrations to an acceptable level or to otherwise
render the sludge innocuous to ensure final safe disposal. Recommended methods
are contained in Octel Instruction Publication No. 5 - 01/92, and must be
followed.
12.6 Disposal of Sludge
Some contractors may not wish to involve themselves in treatment to reduce the
toxicity of leaded sludge, but will wish to dispose of it as it is removed from the
tanks.
• Where a contractor stores leaded sludge on-site, storage is to be in sound
and sealed marked drums, in a separate dangerous goods compound, and
each drum is to be numbered and documented to ensure that disposal at
some later date can be monitored.
• The contractor must give the principal, in writing, full details of how he/she
intends to treat and dispose of the sludge.
12.7 Documentation of Disposal
It is the contractor’s responsibility to ensure that, when any wastes resulting from
tank disposal are removed from his compound, that movement is documented.
The recipient must also fully document the receipt, movement and final disposal
of the wastes.
Before final disposal of these wastes, e.g. in hazardous waste landfill, the contractor
must obtain all necessary documentation and consents from the local and
regional authorities and copies of these are to be made available to the principal
on request.
13. SPECIAL HAZARDS
Additional protective clothing shall be worn for the operations involving possible
lead hazard in accordance with the following table:
Transport and Disposal of Petroleum Storage Tanks 25