Licence conditions for pollution studies and reduction program


  

Licence conditions for pollution studies and reduction programs

Summary
 
Licence number: 378
Title: PRP 304: Wet weather overflow abatement Pollution Reduction Program 2014-2016
Start date: 09 Feb 2015
 
Licence Condition
304.1 The objective of the wet weather overflow abatement pollution reduction program (PRP) 2014-2016 is to require investigations, planning, works and activities to be undertaken in order to reduce the number of wet weather overflows and improve wet weather overflow environmental performance in prioritised areas of the Northern Suburbs sewage treatment system.
Northbridge Baths Wet Weather Overflow Abatement 304.2 By 30 June 2015 the licensee must undertake all works and actions necessary to reduce the number of wet weather overflows from the West Middle Harbour Submain overflow at Sailors Creek to no more than 20 overflows per 10 years.
304.3 By 30 August 2016 the licensee must provide an assessment of how the works completed to meet the objective of condition PRP304.2 will impact on sewer overflow performance, expressed as: i) the frequency of wet weather overflows per 10 years for the whole sewer treatment system; ii) the number of overflows in any 10 year period in 50 percent of directed overflow locations in the whole sewer treatment system; and iii) the number of overflows in any 10 year period in 90 percent of directed overflow locations in the whole sewer treatment system.
304.4 In addition to the reporting requirements of condition R5.6, the licensee must submit with each Annual System Performance Report: i) a statement outlining the number of wet weather overflows from the area that is the subject of this PRP; ii) details of any investigations, plans, works and activities that were undertaken during the reporting period and an outline of progress toward achieving the objective of this PRP; and iii) details of any activities undertaken during the reporting period to evaluate the benefits realised from works to achieve the objective of this PRP.
For the purposes of PRP304 the frequency of overflows for the reporting period is to be determined using the Hydraulic Sewer System Model required by condition L7.1 with the 10 year rainfall time series data in the model.