Classification of the Stockpile Material
10. Mr Jacka's opinion of the classification of the material for offsite disposal to a licensed landfill facility is as follows:
(a) Based on the NSW OEH (then DECCW) Waste Classification Guidelines 2009, the presence of asbestos in the materials provides an immediate pre-classification as Special Waste (asbestos containing).
(b) It is the opinion of Mr Jacka that due to the high proportion of ACM materials observed that all materials onsite, including the entire stockpile of waste, the road surface and any screened materials must be classified as Special Waste (asbestos containing). JACKA P.2 PARA 4.
11. Mr Edwards classification of the material is as follows:
(a) Based on the asbestos content, the stockpile would principally be classified as SPECIAL WASTE (Soil Contaminated with Asbestos Cement Pieces) - as per Department of Environment & Climate Change NSW, Waste Classification Guidelines Part 1: Classifying Waste (April 2008).
(b) The above classification would be dependent on further chemical analysis of the soil. In accordance with the guidelines above the soil would need to be analysed for its chemical constituents. The analysis is dependent on site conditions. Usual and common analytes within the Sydney area are:
- Heavy metals (lead, arsenic, cadmium, chromium, mercury, nickel);
- PAH (Polyaromatic hydrocarbons - commonly found in soil around the Sydney area and usually attributed to coal ash or slag);
- OCPs (Organochlorine pesticides);
- PCBs (Polychlorinated biphenyls - transformer oils etc);
- BTEX & TRH (Hydrocarbon fuel and oils).
Waste Removal Options Available Based on the Classification of the Stockpile
12. Mr Jacka concluded in relation to potential options for reprocessing and classification under [the] existing NSW EPA Resource Recovery Exemption that:
(a) the materials observed on the site show significant contamination with asbestos and as such would be classified as Special Waste (asbestos containing) for the purpose of offsite disposal to a licensed landfill, pending the chemical analysis required by the waste classification guidelines.
(b) the material cannot be processed in any way to reduce the classification due to the high level of asbestos contamination.
13. Mr Edwards, assisted by Mr Jamieson, concluded as follows:
(a) removal and disposal of the waste would take approximately 44 working days;
(b) the estimated cost of removal and disposal based on potential classification as special waste is as follows:
Item Calculation Cost
Cost as of 1 July: $125/tonne (EPA levy increases each year) PLUS 15% contractor P+O (Profit and Overheads) to cover tipping costs until payment etc.
Disposal of material at Blacktown Waste as Special Waste Costs per tonne: $143.75 $3,915,462.00
Tonnes: 27,238
Transport Estimate only - depending on trucks used and weather etc $98,056.80
$3.60/tonne
Excavation costs Load-out - Includes excavator and excavator operator - $2.20/tonne $59,923.60
Chemical analysis by laboratory for chemical classification 38 samples @ $260/sample $9,880.00
Air monitoring for asbestos fibre on site during removal Est. $750 per day for 10 monitors for approx. 44 days $33,000.00
1. Bonded Asbestos Supervisor
Labour $85/hr $29,920.00
(8 hours - $680/day x 44) $22,880.00
2. Bonded Asbestos Labourer $65/hr (8 hours - $520/day x 44)
Supervision - 3 hours a day
Environmental Consultant (Qualified Experienced Professional) At $150/hr incl. transport (est. $15,950) $23,250.00
Plus final validation report and sampling of remaining soil (est. $7,500.00)
ESTIMATED TOTAL $4,192,372.40
(If material disposed as Special Waste) (excluding GST)