Licence conditions for pollution studies and reduction program


  

Licence conditions for pollution studies and reduction programs

Summary
 
Licence number: 2863
Title: Pollution Reduction Study (PRS) 4 - Investigate chlorine test method
Start date: 24 Oct 2017
 
Licence Condition
Background During 2014 the licensee had a discharge of chlorinated waters from the premises which highlighted the need to include chlorine limits/monitoring on the licence. EPA research suggests that the current chlorine test method used by the licensee is subject to interference and can generate "false positive" results. The current test method also cannot detect chlorine down to sufficiently low levels. Deliverables The licensee must undertake investigations into an appropriate test method for chlorine which can be implemented at the premises. The test method must be such that it does not generate "false positives" and can measure concentrations as close as reasonably achievable to the ANZECC (2000) aquatic ecosystem trigger level for the protection of 80% of species of 0.013 mg/L. The investigations must be written into a report that details and justifies the following: a) test method to be used at the premises; b) the proposed limit of reporting for the method that will not result in false positives; and c) the timeframe required to install and assess the application of the method at the premises. The report must be submitted to the Director - Hunter, at hunter.region@epa.nsw.gov.au, by no later than 26 January 2018. Should the proposed test method and limit of reporting be acceptable to the EPA, a Pollution Reduction Program will be developed to require the installation and commissioning phase of the test method. The objective of the commissioning phase is to allow the EPA to identify an appropriate chlorine limit, based on the commissioning phase data.