Warrnambool STP Upgrade

Construction of a new Lift Pump Station, Inlet Works (screenings and grit removal), two train bioreactor, effluent screening and associated chemical dosing and electrical works. A new 130mt long 600dia GRP trenchless outfall connection was also required.

The $85 Million Warrnambool Wastewater Treatment being constructed by Reeves Envico involves:

Over 80,000m3 of sand and clay is being moved to create an earthern mound to protect protect the local visual amenity.
Remediation of contaminated soil around the old nearby rifle butt and all disturbed areas will be revegetated to improve and match the local flora.
Construction and commissioning of a new influent pump station and screening facility is being built to screen Raw sewage and remove rubbish, grit and other coarse solids.
Provision of a new Septage receival system - to screen wastewater from septage tankers is being constructed.
Construction of four off approx. 5000m3 Concrete Treatment Intermittent Decant Exended Aeration tanks utilising precast elements bonded together with wet concrete joints.
Supply and Commissioning a a large Chemical dosing facility to serve the entire site.
Incorporation of a new Odour control facility - treating foul air from the influent pump station, inlet screening and septage receival facility.
Tertiary effluent screening - providing tertiary screening in the effluent channel of the two new IDEA tanks, ensuring no particles greater than one millimetre are discharged to the ocean.
All this discharges to Ocean outfall or to new re-use schemes.