Licence conditions for pollution studies and reduction program


  

Licence conditions for pollution studies and reduction programs

Summary
 
Licence number: 2094
Title: Particulate matter Control Best Practice - Wheel Generated Dust
Start date: 21 Dec 2012
 
Licence Condition
The Licensee must achieve and maintain a dust control efficiency of 80% or more on all active haul roads by 22 March 2013.   Control efficiency is calculated as:   CE =    E (uncontrolled) - E (controlled)       x 100               E (uncontrolled)      Where E =   the emission rate of the activity
The Licensee must assess its conformance with Condition U2.1 by monitoring the following parameters under varying meteorological conditions, including temperature, rainfall, solar radiation and evaporation rates:   -       haul road moisture and silt content; -       frequency, duration and rate of water/suppressant application to haul roads; -       compliance with manufacturer’s specifications for chemical or organic dust stabilisers or suppressants; and -       haul road dust levels.
Should the Licensee wish to use an alternative set of parameters to the ones specified in Condition U2.2, the licensee must submit a written request and supporting report to the EPA providing details of the parameters proposed to be used.  The report must contain a detailed justification of the applicability of the proposed parameters.  The report must be submitted in hard copy for approval by the Licensee to the Environment Protection Authority Regional Manager Hunter, at PO Box 488G, NEWCASTLE by 14 December 2012.
To assess compliance with Condition U2.1, the Licensee must: measure uncontrolled and controlled haul road emissions on at least 3 occasions using a mobile dust monitoring system; continuously measure and record ‘additional site data’ including:         -        vehicle kilometres travelled (VKT),         -        material movements around the site,         -        total and rate of rainfall,frequency, duration, rate and quantity of water applied to the haul roads, and         -        frequency, duration, rate and quantity of suppressant applied to haul roads in comparison to manufacturers specifications, undertake silt content and soil moisture sampling during each mobile dust sampling occasion; and determine if a site specific relationship can be derived between the measured control efficiency, additional site data and the soil moisture and silt content levels. The measurement of uncontrolled and controlled haul road PM10 emissions must not be undertaken at times when greater than 5mm of rain has been received in the last 24 hours or 20mm of rain has been received within the previous 7 days prior to sampling.
The Licensee must submit a report to the EPA which documents the results of the assessment undertaken in accordance with Condition U2.1.  The report must include an assessment of: the dust control effectiveness, the dust levels recorded, and any relationship established between control effectiveness and the additional site data. The report must be submitted by the Licensee to the Environment Protection Authority Regional Manager Hunter, at PO Box 488G, NEWCASTLE by 15 August 2014.
The report required by condition U2.3 must be made publicly available by the Licensee on the Licensee’s website by 29 August 2014. 
The EPA acknowledges that in order to determine uncontrolled PM10 emissions, the section of haul road to be sampled will need to be left untreated for a period of up to 48 hours prior to the sampling taking place.