46 Directors’  Report 2011 Table 1 – Summary of AGL’s Environmental Incidents and Non–Compliances Site Key Environment  and Planning legislation Comments Torrens Island  Power Station, SA Environment Protection Act  1993; and Environment Protection (Site  Contamination) Regulations  2008 In May 2010, voluntary site investigations detected trichloroethylene in groundwater  at a specific location beneath the Torrens Island Power Station site. The South Australia EPA  was notified under Section 83A of the Environment Protection Act. Investigations are  continuing to determine the extent and nature of the impact, and the development of a  management plan. Hallett 2 Wind  Farm, SA Environment Protection Act  1993; and South Australian EPA Wind  Farms Environmental Noise  Guidelines 2009 Noise testing in November 2010 and May 2011 found unacceptable tonality levels at the  residence of a person living in close proximity to the wind farm. AGL and the EPC  construction contractor are working with the local resident to identify a full solution.  AGL is keeping EPA informed of progress. Suncoast Gold  Macadamias, Qld Environmental Protection Act  1994 Audits initiated by AGL in May and November 2010 identified non–compliances related to  the site-based environmental management plan, frequency of air emissions monitoring and  particulate fallout. Corrective actions have been taken, and will be detailed in the next  annual report to the Department of Environment and Resource Management (DERM) in  accordance with permit requirements. Downlands oil  and gas facility,  Qld Environmental Protection Act  1994 Following sustained heavy rain in early December 2010, water overflowed from a pond to  an adjacent property. DERM and the landowner were notified about the incident, and a  Transitional Environment Program was approved by DERM and implemented to return the  site to compliance. Silver Springs and  Fairymount oil  and gas project,  Qld Environmental Protection Act  1994; Petroleum Act 1923; and Queensland Petroleum and  Gas (Production and Safety)  Act 2004 In January 2011, AGL completed an internal environmental assessment of the oil and gas  operations that it acquired from Mosaic Oil N.L. in October 2010. A number of potential and  actual non–compliances with environmental authorities were identified and, where  required, were reported to DERM. Corrective actions are being undertaken to bring  operations into compliance. Moranbah Power  Station, Qld Environmental Protection Act  1994 In May 2011, an internal audit identified non–compliances related to the site based  environmental management plan, air emissions monitoring and spill prevention. These will  be detailed in the next annual report to DERM in accordance with permit requirements. Camden Gas  Project, NSW Protection of the Environment  Operations Act 1997; Petroleum (Onshore) Act  1991; and Environmental Planning and  Assessment Act 1979 In May 2011, non–hazardous soap foam was emitted from a degasser unit during well  workover activities. The Office of Environment and Heritage (OEH), has issued a formal  warning to AGL on the basis that the degasser was not being operated in a proper and  efficient manner, as is required by the Environmental Protection Licence. The OEH also  advised AGL that it found that there was no significant harm to the surrounding  environment resulting from the incident, and that AGL has taken corrective actions to  reduce the likelihood of this type of incident reoccurring. Dartmouth Power  Station, Vic Environment Protection Act  1970; and State Environment Protection  Policy (Waters of Victoria)  1993 In June 2011, a faulty turbine pump seal resulted in a spill of approximately 1L of oil into the  power station’s tail bay. The EPA and Goulburn Murray Water were notified about  the incident.