Opening hours of Sewage treatment plant in Forest Hill, Western Australia Opening hours of Sewage treatment plant in Forest Hill, Western Australia Home / Western Australia / Forest Hill / Sewage treatment plant Sewage treatment plant e-Teq Resources, formerly Great Southern Liquid Waste 481 Pile Rd, Forest Hill WA 6324, Forest Hill, Western Australia 6324 0427 411 404 Categories of local businesses in Forest Hill Establishment Food Industry & Agriculture Park Sewage treatment plant