AGL's Camden Gas Project, in the Macarthur region of south-west Sydney, has 144 coal seam gas (CSG) wells, of which 96 are currently in production. Twenty of the wells are close to the Nepean River and the upper canal, which carries drinking water from Nepean Dam to Prospect Reservoir. One well is just 40 metres from the river. AGL's CSG mining alongside the Nepean River risks contaminating this water with carcinogenic chemicals and volatile organic compounds.