Forest Hill No 2 Wastewater Treatment Plant, Wagga Wagga, New South Wales

Forest Hill No 2 is a wastewater treatment plant located on Sturt Highway in Gumly Gumly, within the Wagga Wagga City Council area of New South Wales, Australia. The plant serves a population of 1,749 and operates under secondary treatment standards, providing biological treatment to reduce organic matter and suspended solids. The plant discharges 452.63 megalitres of treated wastewater per year. As a secondary treatment facility, it meets the standard requirements for inland plants under Australian regulations, which typically mandate secondary treatment to protect receiving water quality. The plant's operational status is active, contributing to the regional wastewater management infrastructure. The treated effluent from Forest Hill No 2 is discharged into the local watershed, which ultimately drains into the Murrumbidgee River, a major tributary of the Murray-Darling Basin. This basin supports diverse aquatic ecosystems and is a critical water resource for agriculture and communities in southeastern Australia.

The plant discharges into the Murrumbidgee River catchment, part of the Murray-Darling Basin, Australia's largest river system. The basin supports a range of aquatic habitats and is ecologically sensitive, particularly during low-flow periods. Downstream, the Murrumbidgee joins the Murray River, which flows to the Southern Ocean via the Coorong and Murray Mouth, an area of significant ecological importance for migratory birds and fish.