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  • ERA - Water
    water ERA s Environment Safety and Health Management System encompasses all aspects of water capture storage supply distribution use and disposal at Ranger mine ERA s Water Management Plan directs the management of water on site The Water Management Plan is updated each year and approved by key stakeholders In recent years ERA has successfully completed a range of water management projects including installation of additional ground water monitoring bores and continuous real time water quality monitoring stations surface water and seepage interception trenches around stockpiles lifts of the Tailings Storage Facility clay core and the installation of over 7 000 prefabricated vertical drains wicks across the Pit 1 tailings area In 2013 ERA completed further significant water management infrastructure projects including the construction of a 220 million Brine Concentrator in September the commissioning of the new one gigalitre capacity Retention Pond 6 in January and the commissioning of the new process water contingency transfer pumping system between the Tailings Storage Facility and Pit 3 Brine concentrators use thermal energy to evaporate water which is subsequently condensed and discharged as clean distilled water This proven technology is scientifically and environmentally sound and will provide ERA with effective treatment means to reduce the process water inventory and to manage the impacts of future heavy rainfall events In March 2013 ERA and the Gundjeihmi Aboriginal Corporation representing the Mirarr Traditional Owners released the findings and 15 recommendations of the Independent Surface Water Working Group ISWWG The ISWWG was established in May 2012 to review surface water management and monitoring associated with the Ranger mine The outcome of the report and the consensus agreed to between the parties delivered a watershed agreement and helped improve relations between the Mirarr Traditional Owners and ERA Click here to view Volume 1 of the report Click

    Original URL path: http://www.energyres.com.au/ourapproach/2684.asp?fsize=m (2016-02-10)
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  • ERA - Different types of water
    type Origin How it is managed Uses and destination Stormwater Rain falling on undisturbed areas i e catchments outside the mine footprint Diverted away from disturbed or operational areas Directed to waterways as natural rainwater run off Potable water Brockman and Majela bore fields Separate pipe system strict operational controls and real time monitoring non return valves unique colour coded connection fittings Bore field water is used for drinking water wash water and washroom facilities septic is captured and transferred to septic tanks and infiltration galleries for disposal Release water Rain falling on catchments within the Ranger footprint Water quality is the guiding principle used for managing the release of water The quality of release waters is such that they do not require incorporation into the pond water inventory but are shed and leave the site as stormwater runoff under controlled conditions Release water is closely monitored as an integral part of statutory and operational monitoring to ensure that water quality objectives are met in Magela Creek Specific streams are routed through passive treatment systems or staging points for management and release Pond water Rainfall that falls on the active pit catchment and stockpile waste and ore catchments generating water of a quality that requires active management All pond water is contained on site and cannot be released unless it has been treated or released via evaporation Directed to Retention Pond 2 RP2 Retention Pond 3 RP3 or Ranger Pit 3 Pond water treatment is by a wetland filtration for uranium polishing followed by land application or b through two pond water treatment plants which utilise microfiltration reverse osmosis and ultrafiltration reverse osmosis technology Pond water is used for general dust suppression within the mining area in the power station as cooling water in the dust collection systems within the

    Original URL path: http://www.energyres.com.au/ourapproach/2684_different_types_of_water.asp (2016-02-10)
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  • ERA - Water monitoring
    Our approach Vision Social Economic Environment Water Different types of water Water monitoring Process Water Management Strategy Tailings Storage Facility Traditional Owners Uranium industry Doing business with us Email this page Home Our approach Water Water monitoring Water monitoring ERA has an extensive water monitoring system which tracks changes in composition and flow rates in surface water ground water and waterways This system includes 200 ground water monitoring bores and 13 realtime monitoring points in waterways upstream and downstream of the Ranger mine Real time water quality results from ERA s in stream monitoring points in Magela Creek confirmed improvements to water quality in 2011 due to diversion and control of ore stockpilerun off and catchment improvements completed in 2010 The construction of a stockpile interception trench and catchment improvements to manage water run off from stockpiles combined with high inflows of high quality water treatment plant permeate has improved water quality in Retention Pond 1 which flows to Magela Creek The levels of electrical conductivity a measure of dissolved salts calcium magnesium and sulphate concentrations in Retention Pond 1 all show a significant reduction compared with previous years The Supervising Scientist Division SSD also conducts independent monitoring of waters

    Original URL path: http://www.energyres.com.au/ourapproach/2684_water_monitoring.asp (2016-02-10)
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  • ERA - Process Water Management Strategy
    Vacancies Indigenous employment Diversity Our approach Vision Social Economic Environment Water Different types of water Water monitoring Process Water Management Strategy Tailings Storage Facility Traditional Owners Uranium industry Doing business with us Email this page Home Our approach Water Process Water Management Strategy Process Water Management Strategy ERA s Process Water Management Strategy is critical for maximising production and enabling progress on new projects as well as allowing the closure of the now exhausted Pit 1 which has been used to store tailings and process water Process water is water that has come into contact with the uranium extraction process and is of a quality that requires containment within the Tailings Storage facility and Pit 1 Process water inventories are reduced by passive evaporation or by treatment through ERA s high density sludge HDS process water treatment plant The retrofitted water treatment plant has a capacity of up to 1 5 megalitres per day Treated water can be released into ERA s wetland water polishing systems In 2013 ERA completed construction on the 220 million Brine Concentrator facility to treat process water which has the capacity to roduce1 83 billion litres of distillate per year This Brine Concentrator permeate meets

    Original URL path: http://www.energyres.com.au/ourapproach/2684_process_water_management_strategy.asp (2016-02-10)
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  • ERA - Tailings Storage Facility
    water Water monitoring Process Water Management Strategy Tailings Storage Facility Traditional Owners Uranium industry Doing business with us Email this page Home Our approach Water Tailings Storage Facility Tailings Storage Facility Preparing Pit 3 to receive tailings from the Tailings Storage Facility TSF in 2015 is a critical component of ERA s Water Management Strategy ERA will begin transferring tailings from processing operations and from the Tailings Storage Facility into

    Original URL path: http://www.energyres.com.au/ourapproach/2684_tailings_storage_facility.asp (2016-02-10)
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  • ERA - Traditional Owners
    in discussions and negotiations with ERA on matters of mutual interest This includes water management cultural heritage and environmental protection employment and training housing and town planning involvement in decision making processes royalties and the future of mining at Ranger Mining Agreement In January 2013 a suite of agreements covering the Ranger Project Area were executed by the Mirarr Traditional Owners ERA the Northern Land Council and the Commonwealth Government These agreements cover the existing mining operations and address a range of historical issues They also provide a structured approach for ongoing engagement and collaboration between the Gundjeihmi Aboriginal Corporation and ERA The agreements entitle the Mirarr to greater participation in the benefits from mining on their land This includes an increased share of royalties establishment of a regional socio economic sustainability trust In addition the agreement resulted in the formation of a relationship committee with ERA to promote information sharing and collaboration and an agreed approach to increasing opportunities for local Aboriginal participation in business development training and employment The Gundjeihmi Aboriginal Corporation and ERA are represented on the Kakadu West Arnhem Social Trust and will each contribute funds on an annual basis The Mirarr Traditional Owners are also represented via the Gundjeihmi Aboriginal Corporation on the Closure Criteria Committee Working Group and are formal members of the Ranger Minesite Technical Committee Independent Surface Water Working Group The Mirarr Traditional Owners and ERA worked together on the Independent Surface Water Working Group ISWWG which began work in 2012 and reported in March 2013 on surface water management and monitoring associated with the Ranger mine The outcome of the report and the consensus agreed to between the parties has delivered a watershed agreement The main findings of the Independent Surface Water Working Group were The current surface water management and

    Original URL path: http://www.energyres.com.au/ourapproach/1697_traditional_owners.asp?band=hi (2016-02-10)
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  • ERA - Traditional Owners
    in discussions and negotiations with ERA on matters of mutual interest This includes water management cultural heritage and environmental protection employment and training housing and town planning involvement in decision making processes royalties and the future of mining at Ranger Mining Agreement In January 2013 a suite of agreements covering the Ranger Project Area were executed by the Mirarr Traditional Owners ERA the Northern Land Council and the Commonwealth Government These agreements cover the existing mining operations and address a range of historical issues They also provide a structured approach for ongoing engagement and collaboration between the Gundjeihmi Aboriginal Corporation and ERA The agreements entitle the Mirarr to greater participation in the benefits from mining on their land This includes an increased share of royalties establishment of a regional socio economic sustainability trust In addition the agreement resulted in the formation of a relationship committee with ERA to promote information sharing and collaboration and an agreed approach to increasing opportunities for local Aboriginal participation in business development training and employment The Gundjeihmi Aboriginal Corporation and ERA are represented on the Kakadu West Arnhem Social Trust and will each contribute funds on an annual basis The Mirarr Traditional Owners are also represented via the Gundjeihmi Aboriginal Corporation on the Closure Criteria Committee Working Group and are formal members of the Ranger Minesite Technical Committee Independent Surface Water Working Group The Mirarr Traditional Owners and ERA worked together on the Independent Surface Water Working Group ISWWG which began work in 2012 and reported in March 2013 on surface water management and monitoring associated with the Ranger mine The outcome of the report and the consensus agreed to between the parties has delivered a watershed agreement The main findings of the Independent Surface Water Working Group were The current surface water management and

    Original URL path: http://www.energyres.com.au/ourapproach/1697_traditional_owners.asp?fsize=s (2016-02-10)
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  • ERA - Traditional Owners
    in discussions and negotiations with ERA on matters of mutual interest This includes water management cultural heritage and environmental protection employment and training housing and town planning involvement in decision making processes royalties and the future of mining at Ranger Mining Agreement In January 2013 a suite of agreements covering the Ranger Project Area were executed by the Mirarr Traditional Owners ERA the Northern Land Council and the Commonwealth Government These agreements cover the existing mining operations and address a range of historical issues They also provide a structured approach for ongoing engagement and collaboration between the Gundjeihmi Aboriginal Corporation and ERA The agreements entitle the Mirarr to greater participation in the benefits from mining on their land This includes an increased share of royalties establishment of a regional socio economic sustainability trust In addition the agreement resulted in the formation of a relationship committee with ERA to promote information sharing and collaboration and an agreed approach to increasing opportunities for local Aboriginal participation in business development training and employment The Gundjeihmi Aboriginal Corporation and ERA are represented on the Kakadu West Arnhem Social Trust and will each contribute funds on an annual basis The Mirarr Traditional Owners are also represented via the Gundjeihmi Aboriginal Corporation on the Closure Criteria Committee Working Group and are formal members of the Ranger Minesite Technical Committee Independent Surface Water Working Group The Mirarr Traditional Owners and ERA worked together on the Independent Surface Water Working Group ISWWG which began work in 2012 and reported in March 2013 on surface water management and monitoring associated with the Ranger mine The outcome of the report and the consensus agreed to between the parties has delivered a watershed agreement The main findings of the Independent Surface Water Working Group were The current surface water management and

    Original URL path: http://www.energyres.com.au/ourapproach/1697_traditional_owners.asp?fsize=m (2016-02-10)
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