Page 78 - AnnualReport_2011-2012

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Note 10: Return of Funds from Member Councils
In 2003 the Western Region Waste Management Authority received legal advice on its charter
that it could return some of its cash holdings to Member Councils subject to each Council signing
a Deed of Agreement to repay amounts as and when required to meet the costs of the Garden
island site remediation.
2012
2011
Funds returned from Member Councils
$
$
Charles Sturt
1,768,600
2,000,000
West Torrens
799,633
Port Adelaide Enfield
0
Holdfast Bay
394,970
Total
1,768,600
3,194,603
2012
Funds Outstanding from Member Councils at June 30
$
West Torrens
799,633
Total
799,633
Table of Member Council Ownership Interest
%
Charles Sturt
56.39
West Torrens
23.93
Port Adelaide Enfield
13.77
Holdfast Bay
5.91
Note 11: Contingent Liability - Risk from possible future events
As stated in the Actuarial Review completed by KPMG dated 8 August 2008 (30 June 2008
Provision for the rehabilitation of the Garden Island landfill site), under section 6 there is some
potential risk from events such as ground water and air contamination. KPMG considered these
risks and stated that consistent with AASB 137 the provision assessment they undertook does not
allow for these risks.
An Environmental Monitoring Plan report investigated and appraised two components, biological
and groundwater contamination. The report by Eco Management Services was completed in
association with Australian Groundwater Technologies and SARDI (South Australian Research
and Development Institute). The investigation results and conclusions on the biological and
groundwater contamination in the EMP report found:
• The groundwater contamination which focused on the behaviour of ammonium nitrogen in
the leachate concluded that ammonia concentrations are generally low and well within the
range that could be expected for mangrove sediments in the waterways surrounding the
island.
• The biological monitoring results whilst inconclusive showed the low diversity and density
of in fauna that are naturally generally occurring in mangrove sediments in areas similar to
Garden Island. As the groundwater contamination investigation found low ammonia
concentrations it appears additional biological assessment investigations are not warranted.
Western Region Waste Management Authority Annual Report 2011/2012
Member Councils: Charles Sturt; Holdfast Bay; Port Adelaide Enfield; West Torrens
For the Year Ended 30 June 2012