Licence conditions for pollution studies and reduction program


  

Licence conditions for pollution studies and reduction programs

Summary
 
Licence number: 3232
Title: Water Quality and Groundwater Impact Assessment
Start date: 16 Dec 2016
 
Licence Condition
By 5pm on 31 December 2019, the licensee must implement, undertake and complete a surface and ground water quality monitoring program at the Kearsley WWTW to be undertaken by an appropriately qualified and experienced person. The surface water monitoring program must include but need not be limited to: a) an assessment of up gradient and down gradient water quality in Swamp Creek, via collection of 24 surface water samples (twelve instances across two locations), where available, with sampling events targeting the three environmental conditions listed below and tested according to the analyte list nominated below         i) Dry weather effluent discharge from tailings dam,         ii) Wet weather effluent discharge from tailing dam,         iii) No effluent discharge from tailings dam. b) an assessment of water quality in the oxidation ponds and tailings dam. Regular sample collection from the oxidation pond effluent and tailngs dam effluent must be tested for the following analytes: pH, Total Suspended Solids (NRF), Biochemical Oxygen Demand (BOD), Cholorophyll 'a', Total Oxidisable Nitorgen (TON), Total Kjeldahl Nitrogen, Total Phosphorous, Filterable Reactive Phosphorous, Ammonia, Total Oil and Grease, Faecal Coliforms (FC), E Coli and Enterococci. The groundwater monitoring program must include but need not be limited to: a) an assessment of up gradient and down gradient groundwater quality; b) identification of the general gradient of groundwater movement; c) identification of the depth to groundwater source(s); d) quarterly groundwater sampling for duration of the effluent investigation; and e) Groundwater sample testing of the following analytes; Bicaronate, Calcium, Carbonate, Chloride, Magnesium, Potassium, Sodium, Sulfate, Total Nitrogen, Total Oxidisable Nitorgen (TON), Ammonia, Total Kjeldah Nitrogen (TKN), Total Phosphorus, Filterable Reactive Phosphorus, Arsenic (total and dissolved), Aluminium (total and dissolved), Chromium (total and dissolved), Copper (total and dissolved), Lead (total and dissolved), Mercury (total and dissolved), Zinc (total and dissolved), pH, Faecal Coliforms (FC), E Coli and Enterococci.
By 5pm on 28 February 2020, the licensee must provide the EPA's Director Hunter with a report prepared by an appropriately qualified and experienced person that addresses, but need not be limited to, the following:  a) a description of the study area; b) a description of the monitoring program; c) a description of downstream water users (surface and groundwater); d) results of surface and groundwater quality and the groundwater gradient; e) analysis of the surface and groundwater quality;  f) assessment of the impact on downstream water users and the environment; g) assessment against relevant water quality guidelines for the downstream uses; and h) any recommendations based on the analysis and assessments made.