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## Environmental risk 

AGL’s seeks to maintain an environmental risk profile that is As Low As Reasonably Practicable (ALARP). This requires continual improvement based on an understanding of risks, and a commitment to reduce the highest risk items where practicable. 

AGL maintains environmental risk registers for all our coal seam gas projects and large power generation facilities. Risk registers are regularly reviewed and assessed by a range of operations personnel and environmental specialists. 

AGL’s approach to the identification of environmental risks is consistent with the approach taken in the ISO 14001 Environmental Management Systems standard. Risks identified through the ‘aspects and impacts’ approach are assessed from the perspectives of ‘inherent risks’, and ‘treated risks’ (which take into consideration existing control measures). This approach enables AGL to put in place critical controls and to identify where the highest residual risks remain so resources can be targeted appropriately, or informed decisions can be made about accepting certain risks. 

During FY2012, AGL’s main environmental risks have related to surface water, groundwater, biodiversity and the management of historic land contamination. Work programs have been developed to manage these risks. 

Further information on AGL’s environmental risks and detailed environmental performance data will be published in the 2012 Sustainability Performance Report. 

## Water management 

AGL is continuing to develop dedicated groundwater and surface water monitoring networks across its Gloucester, Hunter and Galilee CSG exploration areas, and is in the process of establishing dedicated monitoring bore networks at its production wellfield at Camden and expansion area at Camden North. In addition, there are dedicated monitoring locations in the vicinity of its proposed natural gas storage facility at Tomago. 

Seventy dedicated groundwater monitoring bores, 5 perched water monitoring bores, and 16 surface monitoring locations are now operational across the Hunter, Gloucester, Galilee, Camden North and Tomago project areas. In FY2012, 18 new dedicated groundwater monitoring bores and 2 new surface monitoring locations were installed and became operational (in the Gloucester, Camden North and Tomago project areas). 

Results to date from AGL’s dewatering activities in the Hunter, Galilee and Camden Gas Projects suggest that groundwater in deep coal seams in these CSG project areas is isolated from water resources in shallow aquifers and streams. Water level declines have been negligible and water quality has not been impaired as a result of AGL’s activities. 

