The Drouin WWTP Inlet Works Upgrade was urgently required as the population growth within Drouin meant the existing lagoon-based treatment plant system struggled to maintain compliance with EPA standards. Works were required to ensure Gippsland Water maintained compliance with EPA licensing in regards to both odour and discharged effluent quality.

Jaydo was contracted for Stage 1 of the Drouin WWTP Inlet works, with the scope of works
comprising:

Demolition Works

• Demolition and removal of existing steelwork, pipework, fittings, and redundant cabling from within aeration tank
• Saw cutting of existing tank floor and supports, followed by removal of concrete for installation of new tank footings, pump sump and wet weather reliever pipeline

Civil Site Works

• Installation of slabs for inlet screen and grit removal system
• Construction of inlet tank and a 22m diam x 8m deep Wet Weather Reliever (WWR) tank,
  including all reinforcing, hydracorr, coatings, dowels, sealants, wall penetrations and baffle wall
• Valve pit and associated pipework, thrust blocks and supports
• Installation of electromagnetic flowmeter
• Construction of 3x DN1500 maintenance holes
• Supply, fabricate and erect all hot dipped galvanized structural steel work, including steelwork such as handrails, stairs and platform
• Installation of 5x flygt pumps, 2 tonne electric hoist and trolley
• All required DICL inlet, overflow, outlet and dropper pipework