Jacks Gully landfill is a landfill located in Narellan, New South Wales, Australia. Jacks Gully was initially handed over to the State from the local authority in 1973 as the existing council landfill at Springs Road became full. Jacks Gully landfill is owned by WSN Environmental Solutions. Jacks Gully currently takes 115,000 to 130,000 tonnes of waste per annum from Camden, Campbelltown, Wollondilly and Wingecarribee councils plus a portion from Liverpool. Major redevelopment of the Jacks Gully landfill is underway into the Ecolibrium waste centre under a 15-year contract recently awarded to WSN. This development will feature an ArrowBio mechanical biological treatment system, in-vessel composting and a visitor's centre.