News

BINGO working to address odour issues at Eastern Creek landfill facility

Published on 5th May 2021

Update: 17 May

As part of BINGO’s ongoing odour mitigation activities at Eastern Creek, we have engaged a leading international contractor to install a gas collection and management system in our landfill. 

Work commenced on 13 May 2021 and included the following activities:
  • monitoring of landfill gas emissions in the surface of the landfill to identify hot spots for targeted control; and
  • drilling and installation of gas wells connected to a flare which will collect and destroy odorous gases before they reach the surface of the landfill.

The system has a modular design that will allow for future expansion to ensure effective control of odour from the site upon operation and in future as landfilling continues

Following commissioning of the landfill gas collection and treatment system it will be continually monitored to ensure it is operated effectively.

The landfill gas and treatment system currently being installed will result in a significant improvement in odour emissions currently emanating from the site. These systems are routinely employed on landfills across the world for treatment of odour arising from landfill gas emissions.

There may be the potential for temporary unpleasant odour during well installation. A number of measures will be employed to control potential odour emissions as a result of drilling, including:
  • work will only be undertaken during daylight hours when odours are more readily dispersed and controlled;
  • a deodoriser will be employed on site at the drilling locations to treat any odours at the source of drilling;
  • any waste exhumed during drilling will be landfilled and covered immediately; 
  • gas wells will be covered and capped when left overnight if incomplete; and
  • odour monitoring will continue to be undertaken to allow responsive management.

Given BINGO’s commitment to resolving this issue we continue to expedite the delivery of all actions required to mitigate the odour issue at our site. 

The timeline for the installation of the gas management infrastructure is as follows: 

 
Action Timeframe
Gas drilling contractor and equipment arrives on site
13 May 2021
 
Gas well drilling and installation commences
14 – 17 May 2021
 
Connect gas wells to collection infrastructure
15 – 17 May 2021
 
Install and connect flare to gas collection system
15 – 18 May 2021
 
Commission flare
Week commencing 17 May 2021
 
Progressive installation and connection of additional gas wells (as required) to the flare for the period
17 May – 27 May 2021
 
Bingo Industries

Drilling rigs

Drilling rigs are on site and drilling has commenced
Bingo Industries

Infrastructure

Infrastructure installation has commenced on-site

Update: 10th May 2021

BINGO would like to provide the local community with an update on the actions we have taken to address the odour issue at our Eastern Creek landfill facility and to apologise for its occurrence.

As soon as we were made aware of odour within the local community in early April, we took the following immediate actions:

  • commissioning an odour audit and review to assist in identifying potential sources of odour;
  • commencing additional daily inspections of the landfill, including leachate tanks, to identify any areas of odour; and
  • if areas of odour were identified in the landfill, additional cover, in excess of licence requirements, was applied.


The NSW Environment Protection Agency (EPA) advised BINGO that two potential sources of odour were identified in the landfill - the leachate riser and vent pipe. The high levels of leachate impacting the leachate riser was the result of a one in a hundred-year rain event in March where significant volumes of water entered the landfill, increasing the potential for the production of odour.  Our landfill accepts inert, non-putrescible waste typically derived from construction and demolition and commercial and industrial sources and does not accept putrescible waste (such as waste in domestic red bins and food waste).  Odour is therefore not a typical issue at our facility, as it may otherwise be for other surrounding facilities.

BINGO took the following immediate actions in consultation with the EPA:

  • to manage any immediate odour within the vicinity of the leachate riser and vent, applied lime to those areas to disperse any potential odour;
  • expanded the scope of the odour audit given feedback on the location of the community complaints from the EPA;
  • commissioned a consultant to undertake a gas assessment (taking samples from the leachate tanks and riser) to determine whether there were specific chemical compounds responsible for the odours detected;
  • significantly reduced the tip face and application of additional cover and further compaction of fill at various locations across landfill; and
  • appointed staff to attend site outside of operating hours to monitor odour.

We then sealed the gaps or cracks in the riser, added mulch as a bio-filter to both the riser and the vent and applied additional cover.

In addition, we have:
  • applied activated carbon to impacted areas, as advised by our consultants;
  • undertaken leachate riser extension, including waterproofing and leachate pump replacement;
  • commenced an investigation into the effectiveness of an activated carbon filter to fit the leachate riser;
  • undertaken further monitoring and “hot spot” identification;
  • worked with Sydney Water to increase rates of leachate extraction;
  • increased the volume of clean soil we apply across the entire landfill and
  • investigated gas capture and management options.

We are expediting the installation of new infrastructure to collect and treat landfill gas. This infrastructure will resolve the problem for the long-term.

We are very conscious of the impact odour can have on local residents and once again we sincerely apologise for any discomfort and inconvenience this may have caused you in recent weeks. We are doing everything we can to manage the issue on our site.

We intend to fully resolve this matter as soon as possible and ensure it does not occur again in the future.

We encourage members of the public who may have any questions or concerns to contact us on our environmental hotline at 1300 032 747 or at bingoindustries.com.au/contact-us.

For further information:
Environmental hotline:             1300 032 747
General BINGO enquires:        1300 424 646

Update: 5th May 2021

BINGO has received a clean-up order from the NSW Environmental Protection Authority (EPA) relating to odour impacting residents around our Eastern Creek landfill facility. 

The EPA has requested that we take all reasonable action to prevent odorous gas emissions from the leachate riser and the leachate vent pipe, such as by sealing gaps or cracks in the leachate riser, capping the leachate vent pipe, or otherwise filtering the outlet to the leachate vent pipe.

We are very conscious of the impact odour can have on local residents and would like to reassure the public that we are doing everything we can to manage the issue on our site.

BINGO has taken a number of actions to identify and address the source of the odour, including:
  • applying additional cover and further compaction of fill at various locations across the landfill;
  • reducing the size of the tipping area within the landfill;
  • applying hydrated lime around leachate riser;
  • applying cover and hydrated lime to the area surrounding the landfill vent pipe;
  • commencing an Odour Audit;
  • conducting additional monitoring of leachate plant and transfer systems; and
  • increasing odour monitoring outside of operating hours.

BINGO will also be implementing a number of additional actions, including:
  • commencing a landfill gas assessment (scheduled for Friday 23 April 2021);
  • investigating options to safely seal landfill leachate riser and cap vent;
  • investigating options to safely capture and manage gas; and
  • reviewing and updating BINGO’s Landfill Management Plan for landfill gas and leachate management.

We encourage members of the public who may have any questions or concerns to contact us on our environmental hotline at 1300 032 747 or at bingoindustries.com.au/contact-us.

BINGO’s Eastern Creek landfill is an inert, non-putrescible landfill. It does not accept putrescible waste (such as waste in domestic red bins), which is solid waste that contains organic matter capable of being decomposed by microorganisms so as to cause odour, gases, or other offensive conditions.

However, there are a couple of factors that may have contributed to an increase in odour at our facility. Our facility has recently been impacted by the significant rain events (as have many others in the area) and this is believed to be a factor the increase in odour. In addition, during autumn, temperature inversions across the Sydney Basin can trap odours close to the ground. These odours can travel long distances under light breezes before being diluted.

For further information:

Environmental hotline:             1300 032 747
General BINGO enquiries:        1300 424 646

Have any questions?