Wills Street Waste Water Treatment Plant

Environmental Protection License No: 3925

The Wills Street Plant was originally constructed in 1939, augmented in 1956 and upgraded in the 1980’s. It is a Trickling Filter Plant, comprising:

  • Manually raked screens
  • Grit removal
  • Primary sedimentation
  • Trickling filtration
  • Secondary sedimentation
  • Anaerobic sludge digestion (open unheated tanks).

The Plant treats approximately 4 ML per day.

Catchment Equivalent Population Average Dry Weather Flow (ML/Day) (240 L/capital/day) Peak Dry Weather Flow (ML/day) (480 L/capital/day) Wet Weather Flow (3.6 x PDWF)
Wills St WWTP 16,131 3.90 7.80 28.08

Monitoring Data
The following links provide details of monitoring data for Wills Street WWTP. Results shall be updated monthly, in accordance with the Environmental Protection Licence conditions of the facility.

Wills St WWTP results Jan 2018 (16KB)

Wills St WWTP results Nov 2017 (16KB)
Wills St WWTP results 31 Oct 2017 (16KB)
EPL monitoring data correction log