Ok tedi mine waste management

Ok tedi mine waste management. ’. Produce Annual Review using the GRI G3. On 7th March 2000, the BBC published further urging from the World Bank to the government of PNG that it should shut down the OK Tedi gold and copper mine. THE OK Tedi Mining Limited (OTML) has had its mine life extension approved from 2023 to 2050, with an expected dividends payments in excess of K 30 billion, says chief executive officer Kedi Ilimbit. Jan 15, 2024 · Ok Tedi Mining Limited (OTML) has surpassed its annual sediment dredge target of 10 Million Cubic Meters (Mm3) and its rehabilitation target of 35 hectares for 2023 at its Bige Operations, located 125km from the mine. Ok Tedi Mining Limited (OTML) has come on board as a Gold Sponsor of the 2024 Geoscience, Exploration & Extraction (GEE) Conference and Exhibition with the presentation of K100,000 to event hosts, the Mineral Resources Authority (MRA). The mine exports copper as a concentrate with contained gold and silver. This has resulted in elevated copper concentrations throughout the Ok Tedi/Fly River system, which The Ok Tedi Project involves the mining of copper and gold ores in one of the most difficult mining environments in the world. Subsequent state approval was given for an Interim Tailings Storage (ITS The Ok Tedi mine is an open-cut copper, gold and silver mine located at Mt. Hiroyuki Tsukamoto; Deputy General Manager – Raw Materials Department, Mr. To address this knowledge gap, a case study was conducted at the Ok Tedi Mine with the aim of increasing the knowledge base on this topic and promoting sustainable mining practices in Papua New Guinea by enhancing the desulfurization process for sulfide waste tailings man-agement. Although previous research has explored the environmental consequences of sulfide mine waste tailings and the potential advantages of desulfurization method, there is a lack of studies examining OK Tedi Mining Limited Readi Watch Fatigue Management Trial Day 3 of the program was around ‘Driver Fitness’ with a focus on Fatigue which is one of the top 3 contributing factors to the Light Vehicle and Mobile Equipment incidents at OK Tedi in the last 2 years. Environmental studies in an impacted tropical river system. Side branches. Drilling and blasting procedures at Ok Tedi underwent a major review commencing Ok Tedi Mining Limited projects over K30 billion (US$8. The Ok Tedi copper mine is situated in the upper drainage area of the Fly River in Papua New Guinea (PNG), near one of its branches, the Ok Tedi River. The SHEC Committee comprises two Non-Executive Directors, Managing Director and an OTML management representative. Up to 240 thousand tonnes of overburden (waste rock) is mined each day from a pit covering about 2. Pages 9. This role provided him with key insights into underground mining, geology, and diamond drilling management. Nov 29, 2020 · Introduction. Townsend and William H. 2. POM Office Highlights _ NMSW 2023. OTML National Mine Safety Week Report 2023 Ppt version. In the. Although previous research has explored the environmental consequences of sulfide mine waste tailings and the potential advantages of desulfurization method, there is a lack of studies examining Jan 1, 1992 · Ok Tedi Mine is a high production open pit porphyry copper mine located high in the Star mountains of Papua New Guinea. During the 1980s and 1990s, the mine dumped an estimated 80,000 tonnes of The plant was installed by personnel from the mine Waste Management Department under the supervision of Hendrick Min, Manager – Waste Management Department, Ok Tedi Mining & Sandy Kelly, RPS The 1000 km long Ok Tedi/Fly River system receives about 66 Mt/year of mining waste from the Ok Tedi copper-gold porphyry mine. 1-15. The Fly is notable for its extraordinary biological diversity (Townsend and Townsend, 2004). There are 158 villages in the Western Province where community life has been directly influenced by the presence of the mine. Detailed Level Risk Assessment', prepared for Ok Tedi Mining, Ltd, pp. 3 Mm3 of river sediments and rehabilitated 40 hectares (ha) of sand stockpile in 2023. It is one of the chief mines globally. Our registered office is located in Tabubil, Western Province, PNG. Striking the correct balance between environmental protection and waste disposal expenditure is critical to the financial viability of the Project Jan 1, 2024 · DOI: 10. Structure for OTML at 31 December 2021: Kumul Minerals Ok Tedi Ltd (State of PNG) holding 67% and Western Province entities 33%. OTML is committed to conducting its operations in a socially responsible manner that respects cultural heritage and traditional rights. Nov 25, 2023 · The Ok Tedi mine in Papua New Guinea discharges waste tailings into the Ok Tedi and Ok Mani Rivers, which are tributaries of the Fly River. 1 INTRODUCTION. During 1999, approximately 15,400 tonnes per day of ore was processed at the Porgera concentration plant and the tailings disposed of into the Strickland River The average gold price of $871. The company states: “Our Waste Management Department in About. Sites such as Ok Tedi, Bougainville, and Freeport have become emblematic labels for t h e e n v i ro n m e n t a l e x c e s s e s ofl a rg e Bar, N, Kuira, P & Semi, J 2014, ‘Managing risk associated with erosion-driven slope instabilities with ground support & surface water management in a high rainfall environment at Ok Tedi Copper-Gold Mine’, Proceedings of Mastering Complex Projects Conference 2014, Engineers Australia, Barton, pp. Hendrick Min holds a Bachelor's degree @ Divine Word University. The company has around 1,800 permanent employees, with a similar number of embedded contractors and than 1000 km downstream from a mountain mine, such as is the case for the large Ok Tedi mine in Papua New Guinea, which has affected the livelihoods of over 30,000 people, decreased fish stocks and caused extensive degradation of forests. Talent management is a key part of Ok Tedi’s strategy. The approval is based Sep 1, 2016 · It cost about US$1. - Subscription is required. DPHL Highlights _ NMSW 2023. 4 billion to develop the mine which sits near the headwaters of the Ok Tedi River in the highlands of Western PNG. However, in 1984, during the construction of the foundation for the tailings dam at Ok Ma, a landslide filled the area. Any forum for the discussion of sustainability at a global level must include. OK TEDI MINING LIMITED Tabubil Head Office 1 Dakon Road, Tabubil, Western Province, 332, Papua New Guinea joins the Fly River, which then flows into the Gulf of Papua (Figure I2). mine, and has a 52% stake, announced that it was reconsidering its role, saying that waste management procedures at the mine were not working (BBC 2000). This marks a significant milestone for OTML, its shareholders and for Papua New Guinea in general and is a sign of the confidence the Board has in the company's ability to deliver over the next two decades. The OTML is a major producer of copper concentrate for the world smelting and refinery market in Germany, India, Japan, South Korea and the Philippines. 80 000 tonnes per day (tpd) of waste tailings and 121 000 tpd of mined waste rock which are discharged directly into the Ok Tedi/Fly River system. 39/oz and $13. com Jun 18, 1998 · The mine produces approx. Demerit Program Highlights _ NMSW 2023. Mining in Papua New Guinea (PNG) has had a troubled history, and many current operations continue to attract the critical interest of a range of local and international non-government or- ganizations. Townsend. 0 billion) in Social Benefits, which includes taxes, royalties, and dividend payments, over the next 27 years. Fubilan in the Western Province of Papua New Guinea. The livelihood of 50,000 people around the area has been disrupted. 1 Dakon Road, Tabubil, Western Province, 332, Papua New Guinea Sep 1, 2022 · The effective management of sulfide mine waste tailings is a complex task because of the potential for acid rock drainage to harm aquatic ecosystems. The approval is based on the latest Strategic Business Plan submitted by the Executive Leadership Team and discussed during the OTML Built in 1990, the Porgera mine is one of only four mines in the world that practice the riverine disposal of mining wastes (Vogt 2012). Ground elevations are 500–2200 m above sea level. 2 mi) down the Ok Tedi and Fly rivers, raising river beds and causing flooding, sediment deposition, forest damage, and a serious decline in the area Patricia K. 96/ oz and silver price of $14. River Sediment is an ongoing challenge from Ok Tedi Mining Limited’s operations. Developments in Ok Tedi operates a large-scale copper and gold mining and processing facility in the Western Province of Papua New Guinea, with ore mined from at an annual rate of 24 million tonnes. 4 OK TEDI MINING LIMITED The Global Reporting Initiative’s (GRI) G4 reporting guidelines have been used in this Annual Review to guide the disclosure of non-financial material information. The Executive Leadership Team of Ok Tedi Mining Limited lead and manage the operations of the Ok Tedi Mine The Board of Ok Tedi Mining Limited (OTML) has approved in principle a further mine life extension from 2033 to 2050. Communities in the South Fly River area Kumul Minerals Holdings Limited as the majority shareholder of Ok Tedi Mining Limited (OTML) is excited to share OTML’s histories, highlights and achievements. Deepcore Highlights _ NMSW 2023. Ok Tedi Mining Limited (OTML) operates the Ok Tedi Mine, the longest running open-pit copper, gold and silver mine in Papua New Guinea. A basic mining map of Papua New Guinea is shown in Figure 1. Direct. From the start of operations in 1984 to the end of 2022, Ok Tedi has produced 5. 300-400 million on capital on the mine waste tailings project to remove pyrite Jan 7, 2022 · The Ok Tedi copper-gold mine is located at Mt Fubilan in the Star Mountains of Papua New Guinea, approximately 15 km north-west of the mining town of Tabubil Grist Project Management Marketing (current) Parametrix, Inc. Edition 1st Edition. The Ok Tedi Mining Limited Board has a number of standing committees to assist provide advice and recommendations on OK Tedi National Mine Safety Week. Discussion around more reliable and effective controls and measures were Sep 22, 2023 · The Board of Ok Tedi Mining Limited (OTML) has approved in principle a further mine life extension of the Ok Tedi mine from 2033 to 2050 which will see the mine generate in excess K30 billion for the country. Major Projects Highlights _ NMSW 2023. Imprint CRC Press. Panguna, Ok Tedi, Porgera, Lihir, Ramu) but always with controversial environmental standards and social impacts often overlooked or ignored. at least $300-400 million on capital on the mine waste tailings project to remove pyrite from tailings. Twenty years of diverse Government and Mining work Experience in; Mining Environment Industrial Site Management Aspects and Impacts, Waste Management Government and Mining Community Development Projects and Programs Implementation, Mining Operations Earth and Civil Works and Mining Area Rehabilitation. While the majority of this waste is benign rock, the sulphide and copper mineralisation contained within these wastes is of environmental concern. 3The Bougainville copper mine is the most notorious case in that history Oct 23, 2013 · The environmental damage caused by the Ok Tedi mine is extensive and, many scientists argue, likely to be irreversible. 100 %. EHS Highlights _ NMSW 2023. This has resulted in elevated copper concentrations throughout the Ok Tedi/Fly River system, which Ownership. The copper price reflected two distinctly different periods of 2008. and URS Greiner Woodward Clyde ( 1999a) `Draft Executive Summary: Assessment of Human Health and Ecological Risks for Proposed Mine Waste Mitigation Options at the Ok Tedi Mine, Papua New Guinea. Ilimbit said this marked a significant milestone for the mine, its shareholders and for the country in Jun 11, 2021 · The rehabilitation efforts by OTML epitmoses this year’s WED theme of ‘ecosystem restoration. The Ok Tedi's waters flow into the Fly River, and thence into the Bay of Papua (see Map 1). Jun 1, 2019 · Fish populations utilised by riparian populations along the Fly River, Papua New Guinea (PNG), downstream of the Ok Tedi gold and copper mine have markedly declined in species richness (between 21 and 90%) and biomass (between 57 and 87%) during the operation of the mine (Storey et al. Jan 16, 2013 · Since then Ok Tedi Mining Limited has remade itself. 2% and 12% higher respectively than the $696. Successful long-term mitigation of Acid Rock Drainage (ARD) involves placing a geochemical cover layer over the PAF waste and Apr 9, 2021 · The Ok Tedi mine originally planned to construct both a tailings dam and a waste rock dump to retain much of the mine derived waste during its mine life. 66% sulphur) were delivered to the upper Ok Tedi river system. 38/ oz recorded in 2007. This marks a significant milestone for OTML, its shareholders and for Papua New Guinea in general. Since 1970, several large mines have been developed in PNG (e. The approval is Our success is measured by safety performance, financial performance, social development programs and the management and mitigation of environmental impacts. 4 Jan 7, 2013 · Ok Tedi Mining Limited CEO, Nigel Parker, says his company's mandate is unique. We also have a representative office in Port Moresby, PNG and a logistics facility in Brisbane, Australia. Mine waste management at Ok Tedi mine, Papua New Guinea: A case history - 1. , the volume of waste-to-product ratio can vary from 100:1 to 1000000:1) (Qi and Fourie, 2019). May 4, 2020 · Landslide monitoring and management is a challenging task in the remote, rugged and sparsely-populated Ok Tedi Mine area of Papua New Guinea (PNG). 190 followers 183 connections See your mutual connections Nov 1, 2020 · Mining is often portrayed as a contributor to sustainable development, especially so in developing countries such as Papua New Guinea (PNG). • Integrate Ok Tedi Mining Limited (OTML) CSR Principles into planning processes to further support safe work practices and healthy communities; continue managing The effective management of sulfide mine waste tailings is a complex task because of the potential for acid rock drainage to harm aquatic ecosystems. ( ABC TV ) The PNG Sustainable Development Fund had owned 63 per cent of the mine, with the state owning the rest. oktedi. However, mining operations inevitably generate a large volume of waste material (e. Phone: +675 649 3000. The SHEC Committee members are Mr Bonny Ninai (chairman), Mr Robert Kaiyun (member), and Mr Kedi Ilimbit (member). Every day, 17,000 metric tonnes of mining tailings and waste rock are dumped into two major tributaries of the Porgera River. Recent alluvial Jul 1, 2022 · Introduction. 3. mining, simply because its environmental impact is so disproportionately great. A 100% PNG owned company, Ok Tedi Mining Limited operates the longest running open-pit copper, gold and silver mine in Papua New Guinea. Historically, the riverine disposal system annually discharged between 40 and 80 million tonnes (Mt) of tailings and waste rock into the headwaters of the Ok Tedi catchment. Waste management includes discharge of tailings into the local river system and storage of waste rock from the mine pit in waste rock dumps which erode into the river system Jan 26, 2014 · Papua New Guinea's National Court has ordered the Ok Tedi mining company to stop dumping waste into a river, a move which would effectively shut the mine. Hendrick Min, based in Papua New Guinea, is currently a Manager- Waste Management at Ok Tedi Mining Limited, bringing experience from previous roles at Ok Tedi Mining Limited. 1 Having originally opened for gold extraction in 1984, the operation diversified into copper production 3 years later. 2023. May 1, 1997 · The 1000 km long Ok Tedi/Fly River system receives about 66 Mt/year of mining waste from the Ok Tedi copper-gold porphyry mine. Monitoring Dec 23, 2012 · Papua New Guinea's huge Ok Tedi gold and copper mine used to be a name synonymous with environmental disaster. 108530 Corpus ID: 266290745; A strategy for source control of acid mine drainage by intelligent management of mine wastes @article{Zhang2024ASF, title={A strategy for source control of acid mine drainage by intelligent management of mine wastes}, author={Yanjun Zhang and Hongbo Zhao and Wenmi Chen}, journal={Minerals Engineering}, year={2024}, url={https://api The open pit and two underground mines will be in operation till 2025. g. mineng. OTML is a 100% nationally owned copper mining company that is located in the Western Province of Papua New Guinea and Kumul Minerals Holding Limited owns 67% share interests. Apr 1, 2024 · To address this knowledge gap, a case study was conducted at the Ok Tedi Mine with the aim of increasing the knowledge base on this topic and promoting sustainable mining practices in Papua New Guinea by enhancing the desulfurization process for sulfide waste tailings management. Sep 21, 2023 · The Board of Ok Tedi Mining Limited (OTML) has approved in principle a further mine life extension from 2033 to 2050. In 2006, 48 million tonnes of waste rock (containing 1. Fubilan, in the headwaters of the Ok Tedi River, as a joint ownership between Broken Hill Proprietary Company (BHP) (52%), the Papua New Guinea state (30%) and Canadian miner Inmet (18%). The main environmental impacts arising from mining operations are due to the large amounts of sediment discharged into the river system, which results in elevated levels of Geographical constraints, including steep terrain and high rainfall, at the Ok Tedi copper-gold mine in PNG’s Western Province present Ok Tedi Mining Limited (OTML) with significant challenges in mine waste management. Reference: 20004011. Dredging was commissioned in 1998 to reduce sediment load reaching the Lower Ok Tedi and Fly River system. 09% sulphur) and 27. It is also a sign of the confidence the board has in the company’s ability to deliver over the next two decades. More intense rainfall and flooding events have the potential to Jan 7, 2008 · This article examines an indigenous political movement that took legal action to gain compensation and limit the environmental impact of the Ok Tedi copper and gold mine in Papua New Guinea. Abstract: A critical element of the rehabilitation strategy for the Ok Tedi mine in Papua New Guinea (PNG) is the rehabilitation of the potentially acid forming dredge sand stockpiles at Bige on the banks of the Ok Tedi. waste rock in the Ok Tedi River. Ok Tedi Mining Limited (OTML, or the Company) is proudly a 100% owned Papua New Guinea (PNG). A significant yet unknown amount of copper-rich material deposits unevenly in the extensive tropical lowland floodplain. C. 1016/j. The mine is located on Mt. Aug 31, 2017 · Fish populations utilised by riparian populations along the Fly River, Papua New Guinea (PNG), downstream of the Ok Tedi gold and copper mine have markedly declined in species richness (between 21 and 90%) and biomass (between 57 and 87%) during the operation of the mine (Storey et al. , The Fly River Papua New Guinea. First Published 2000. Our dredging operation reduces the amount of sediment in the rivers around our mine. o n t r oversies linked with the large-scale mines in Melanesia larg e l y revolve around the environmental impact of their waste management strategies on the communities living downstream of the mine. Ok Tedi Mining Limited’s safety CHAPTER 2. As a result, there has been an increase in sediment levels, heavy metals, and acid rock drainage in river systems, causing harm to plants, fish, and other aquatic species. “Mining Geochemical Characteristics of River Deposited Mine Wastes and Associated Contact Waters Downstream of the Ok Tedi Mine, Papua New Guinea - Implications for ARD Management Go to Paper Evaluation of the Sulfide and Carbonate Distribution in Waste Rock Dumps and Development of Operational Guidelines for Acid Rock Drainage Control at the Ok Tedi The Ok Tedi mine, located in the Star Mountains of the Western Province of Papua New Guinea (PNG), began operations in 1984 and now predominantly produces copper concentrate. The Ok Tedi Mine in Papua New Guinea. Among the distinguished visitors were General Manager – Raw Materials Department, Mr. 4 million tonnes of tailings (2. began production in late 2012. Even though the campaign sought to balance the desire for economic benefits with the protection of local subsistence practices, its objectives were Community & Social Development. This achievement highlights the company’s dedication to Ok Tedi Mining Limited is a 100% PNG owned company that mines copper, gold and silver at Mt. The approval is based on the latest Strategic Business Plan submitted by the Executive Leadership Team discussed during the OTML Aug 5, 2011 · The construction of the Ok Tedi mine in western Papua New Guinea (PNG) began in 1981, with the first production commencing in 1984. Mine input has increased the suspended sediment load of the Book Tailings and Mine Waste 2000. Full scale drilling and blasting began in 1988, prior to which time all material was ripped and dozed. Nov 1, 2021 · The Ok Tedi mine discharges waste rock and tailings into the Ok Tedi River in Papua New Guinea. Developments in requirements of the Ok Tedi Environmental Management Act 2019 (OTEMA) as laid out in the Ok Tedi Permit. Sep 22, 2023 · The Board of Ok Tedi Mining Limited (OTML) has approved in principle a further mine life extension from 2033 to 2050, marking a significant milestone for OTML, its shareholders and for Papua New Guinea (PNG) in general. Manage three (3) scientific programs (ARD Management, Terrestrial Ecology and Aquatic Ecology) and a Field and Technical Support team that are responsible for the monitoring and studies undertaken along the Ok Tedi and Fly River from the Mine to the mouth of the Fly to assess mine impacts on the receiving environment. Jun 16, 2021 · SENIOR ENVIRONMENTAL OFFICER. In addition, it is a main source of revenue for the country, and a source of income for the people. we've spent at least $300-400 million on capital on the mine waste tailings project to remove pyrite from OTML completes a risk evaluation of several options for waste mitigating schemes and recommends an 18-month dredging trial on Lower Ok Tedi and continuing to assess the feasibility of tailings storage pipelines, with a final decision on a long-term mine waste management plan subject to the outcome of both efforts. NATIONAL MINE SAFETY WEEK LV and Mobile Equipment Safety 30 April – 05th May 2023. A major consideration for the successful development of the mine is the disposal of some 1000 Mt of waste material. 1 framework. United States, for example, mining contributes less than one tenth of one percent of gross. Masahide Iwataki; Manager – Raw Materials Feb 1, 2024 · The Ok Tedi mine discharges waste rock and tailings into the Ok Tedi River in Papua New Guinea. Tailings and waste rock from the Ok Tedi mine are also discharged into the Fly River System, via the Ok Tedi. Our social license to operate is based on the Free, Prior and Informed Consent principles applied to the mine associated communities and the national and provincial governments. Available at: www. The mine is operated by Ok Tedi Mining Limited (OTML), a company jointly owned in the 1990s by the Australian mining company BHP, the PNG government, and Inmet Pty Ltd, a Canadian mining company. com. Manager- Waste Management at Ok Tedi Mining Limited Tabubil, Western, Papua New Guinea. 2 Management Plans 3. mine is due to close in 2015 Tabubil Head Office. These price levels assisted OTML’s strong revenue for the year. 191–202. 6 square kilometres. The dredging program has been successful with the bed level of the Lower Ok Tedi dropping since the commencement of dredging and forest dieback declining. 6 August. Ownership. 9 Moz of gold and 36. domestic product yet is the largest Mar 22, 2023 · After some delays due to COVID-19, Ok Tedi Mining, the 100% PNG owned open-pit copper and gold mine located in the Star Mountains of the Western Province of Papua New Guinea, has become one of the few mining companies in the world to operates its own on minesite tyre pyrolysis plant. 2. Compliance Monitoring. Based in Tabubil and reporting to Superintendent Industrial Site Management, you will be responsible for providing technical support across the OTML operation to ensure OTML’s legal obligation under the Ok Tedi Environmental Management Act are met. Ok Tedi Mining Ltd. Community Relations. The past 28 years of mining activities have resulted in two massive rock glaciers, far more dramatic effects of the massive dumping of mine. The dredge removes at least 10 million Sep 19, 2013 · OK Tedi mine pipe spewing waste into the Fly river. 99/oz recorded in 2008 were 25. Management to assess materiality of non-financial matters, and outline benchmarks and best practices OTML would like to align with. Contractors. At the Panguna and Ok Tedi mines, tailings were directly discharged into the adjacent river systems, while waste rock was either directly dumped into the river or placed on easily erodible dumps. The Bige Operations dredged 10. The Ok Tedi mine-tailing dam was rapture/collapse since begging in 1984. Ok Tedi Mining Limited has a comprehensive environmental management program designed to limit environmental impacts and manage and monitor mining operation impacts. The mine produces an average of 160 000 tonnes of ore and waste daily at a 1:1 strip ratio. Mine input has increased the suspended sediment load of the Middle Fly River about 5–10 times over the natural background. eBook ISBN 9781003078579. By the 1990s the lower Ok Tedi up so much that it regularly overflowed its banks and deposited sterile sand on top of levees that had previously been the most garden sites for people living along the river. This report is the fourth report prepared according to the GRI Core General Standard Disclosures of reporting and the Mining and Metals Sector . OK Tedi National Mine Safety Week Summary Report 2023. The lack of a proper waste retention facility caused severe harm to the environment along 1000 km of the Ok Tedi and Fly Rivers. About Us. This marks a significant milestone for OTML, its shareholders and for Papua New Guinea in general and is a sign of the confidence the Board has in the company’s ability to deliver over the next two decades. The dredging project, which is located at Bige in the Lower Ok Tedi, is about 80km from the mine. Ben is married with four teenage children and while he is based in Tabubil, his roots remain in Brisbane where his family resides. Western Province entities (Landowners and the Provincial Government) hold a direct 33% interest in OTML, with representation on the Ok Tedi Board of Directors. APAC Outlook issue 49 | 91. 17 Mt of copper, 15. Sep 22, 2023 · September 22, 2023 The National Business. Description: THE national mining safety week, which aims to promote safe operations of most mining companies in Papua New Guinea, it originated as an initiative of the chief inspector of mines from the PNG MRA. The United Nations Environment Programme has noted that the Ok Tedi mine site's "uncontrolled discharge of 70 million tonnes of waste rock and mine tailings annually has spread more than 10 km (6. Collaborative work experiences with Sep 25, 2023 · The Board of Ok Tedi Mining Limited (OTML) has approved in principle a further mine life extension from 2033 to 2050. Gold mine, and has a 52% stake, announced that it was reconsidering its role, saying that waste management procedures at the mine were not working (BBC 2000). Mining is an essential activity for both economic prosperity and social development. Key monitoring programs measure the ongoing impacts of sediment deposition from treated tailings and waste rock into the riverine system, water quality, fauna and flora in the aquatic and terrestrial systems. The Ok Tedi mine has one of the leading OTML completes a risk evaluation of several options for waste mitigating schemes and recommends an 18-month dredging trial on Lower Ok Tedi and continuing to assess the feasibility of tailings storage pipelines, with a final decision on a long-term mine waste management plan subject to the outcome of both efforts. 1 The Ok Tedi Permit requires that waste rock disposed to failing dumps to the north and south of the main pit must satisfy an annual mean less than -150 kg H 2 SO 4 Mar 1, 2022 · OTML has endeavoured to reduce the copper loading into the river through improved mining practices and mitigation strategies such as lowering the allowable copper content of rock disposed of in waste rock dumps, improved recoveries in the milling circuits, the addition of limestone at the waste rock dumps and the mills to prevent acid-rock drainage, improved recovery of copper in the flotation Apr 9, 2021 · Ok TEDI MINING LIMITED Phone: +675 649 3000 www. OTML undertakes a comprehensive environmental monitoring program as governed by the Ok Tedi Agreement. This is based on the company’s current Strategic Business Plan which includes Life of Mine (LOM) extension to 2050, ushering in significant sustainable development for mine operation impacted communities, Western […] Ok Tedi Mining Limited (OTML) hosted esteemed representatives from Mitsubishi Materials Corporation (MMC), one of its leading customers of copper concentrate from Japan last week. cu lk yd bu kg ls ay oy gp tv