Volume a : Executive Summary Sotpela Ripot English Translation of Sotpela Ripot
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Ramu Nickel Joint Venture Ramu Nickel Project Environmental Plan Volume A : Executive Summary Sotpela Ripot English Translation of Sotpela Ripot January 1999 CR 161/9/v4 Prepared by: NSR Environmental Consultants Pty Ltd 124 Camberwell Road Hawthorn East, Victoria 3123 Australia Tel: 61-3-9882 3555 Fax: 61-3-9882 3533 e-mail: [email protected] Contents Contents Executive Summary 1 1. Introduction 1 1.1 Participants and Proponent 1 1.2 Ramu Nickel Project’s Environmental Plan 1 1.3 Project History and Development Concept 1 2. Rationale for the Development 3 2.1 PNG Government Objectives 3 2.2 Provincial Government and Landowner Attitudes 4 2.3 Opportunity for Nickel Commercialisation 4 2.4 Project Objectives 6 3. Environmental Planning and Permitting Process 6 3.1 Legislative Requirements 6 3.2 Consultation 7 3.3 Schedule 8 4. Project Description 8 4.1 Kurumbukari Facilities 8 4.2 Transport Infrastructure 12 4.3 Basamuk Facilities 12 4.4 Services 14 4.5 Tailing Treatment and Disposal 15 4.6 Workforce 17 4.7 Decommissioning 17 5. Project Setting and Issues 18 5.1 Description 18 5.2 Issues 19 6. Environmental Planning 19 6.1 Investigations 19 6.2 Main Planning and Management Options 19 6.3 Impact Assessment and Safeguards 23 6.4 Accidental Events and Natural Hazards 36 7. Social and Economic Development 37 7.1 Benefit Streams 37 7.2 Sector Impacts 37 Ramu Nickel Project—Environmental Plan v Contents 7.3 Impacts on Archaeology and Material Culture 41 7.4 Implications for Local Communities 41 8. Environmental Management and Monitoring 41 9. References 43 9.1 Ramu Environmental Plan Appendices 43 9.2 References Cited 44 10. Study Team 44 10.1 Highlands Pacific Limited 44 10.2 NSR Environmental Consultants Pty Ltd 45 10.3 Specialist Consultants 45 10.4 Engineering Consultants 45 Figures 1 Locality map 2 2 Distribution of total project revenues 4 3 Nickel cash cost and production comparisons 6 4 The relationship between resources and reserves 6 5 Special mining lease (SML) procedure 7 6 Permitting and development schedule 8 7 Plan of main project and infrastructure components 9 8 Idealised Ramu laterite profile 10 9 Greater Ramu mineralised zone 10 10 Schematic cross-section of preparation, mining and rehabilitation stages 11 11 Clearing, mining and rehabilitation sequence to Year 11 13 12 Beneficiation flowsheet 14 13 Refinery flowsheet 15 14 Layout of the DSTP system option 17 15 Conceptual DSTP disposal system 18 16 Typical oceanographic profile, August 1995 18 µ 17 Predicted percentage of time that the assumed SO2 1-hour maximum goal (350 g/m3) is exceeded under emission control options 2 and 3 24 18 Hamlets and populations at Kurumbukari 24 19 Aquatic biological impact zones at the end of mine life, Kurumbukari 25 20 Baseline and predicted mean daily TSS at Ramu River at Sepu 26 21 Predicted nearshore biological impact zones (physical and biological effects) during the construction phase 28 22 Schematic of density flows and plumes 29 23 Predicted main tailing deposit footprint 30 24 Sediment flux, New Guinea and Vitiaz Basin 32 25 Three-dimensional image of submarine canyons off Basamuk 34 26 Construction workforce profile 39 27 Provisional Ramu Nickel landowner business development structure 40 vi Ramu Nickel Project—Environmental Plan Contents Tables 1 Estimated value* of benefit streams 4 2 Power demand and supply 16 3 Water requirements and supply 16 4 Accommodation for employees during construction and operations 16 5 Refinery siting factors 20 6 Site selection criteria for on-land tailing disposal 21 7 A comparison of identified conceptual on-land tailing disposal options 21 8 Site investigations to assess suitability for DSTP 22 9 Tailing disposal option comparison 22 10 Dilutions of tailing required to comply with ambient water quality standards/guidelines 29 11 Project-adopted seismic and tsunami design criteria 36 12 Types of benefit streams and relevant stakeholder group 37 13 Project land requirements 38 14 Composition of operations workforce 39 15 Potential contracting opportunities for local businesses according to location 40 16 Archaeological and cultural sites likely to be affected by the project 41 Plates 1 Kurumbukari exploration camp located on the Kurumbukari Plateau 1 2 Proposed refinery site at Basamuk on the Rai Coast 3 3 Trial mining at Kurumbukari undertaken as part of the project’s feasibility assessment 5 4 Rehabilitation trials conducted at Kurumbukari 5 5 Millet cover crop trial on red limonite (fertilised) 12 6 Basamuk Bay and hinterland 14 7 Basamuk Bay 19 8 Banap Oxbow in the foreground with the Ramu River in the distance 25 9 Nape Swamp with Kurumbukari Plateau in the background 25 10 Lihir silt curtain 27 11 Finisterre Range behind Basamuk Bay 31 12 Sediment-laden plume of the Gogol River 31 13 Mouth of the Yaganon River 33 14 Dissected goldband snapper 35 15 Banap Creek at low flow 42 16 Banap Creek at high flow 42 Boxes 1 Relevant international conventions and treaties 8 2 List of environmental planning and impact assessment studies 20 Sotpela Ripot 47 English Translation of Sotpela Ripot 53 Ramu Nickel Project—Environmental Plan vii Executive Summary Executive Summary 1. Introduction The EP seeks approval for the project to and following the implementation of proceed and, to this end, provides: the proposal. The Ramu Nickel Project is a proposal to mine and refine lateritic ores to pro- • For interested bodies and persons, a 1.3 Project History and duce nickel and cobalt for sale on world basis for understanding the proposal, Development Concept markets. The project is located in Ma- alternatives and preferred solutions, The Ramu lateritic nickel and cobalt re- dang Province, Papua New Guinea the existing environment, and the ex- source is located on the Kurumbukari (PNG) (Figure 1). pected changes to that environment Plateau (Plate 1), part of the southern should the proposal be implemented. flank of the valley of the Ramu River. 1.1 Participants and Proponent The Kurumbukari deposits have been The Ramu Nickel Joint Venture (RNJV) • For groups or persons with rights or explored discontinuously since 1962 by is owned in joint venture by Ramu Nickel interests in land, an outline of the a succession of companies. Highlands Limited, a wholly owned subsidiary of effects of the proposal on that land, Gold Properties Pty Limited (HGP) as- Highlands Pacific Limited (HPL) (65%), and of benefits and compensation. sumed the management of the current and Nord Australex Nominees Pty Ltd • For PNG decision-makers, informa- joint venture in 1992. An intensive pe- (35%). It is anticipated that the PNG tion for assessing the potential im- riod of geological exploration and engi- National Government and project area pacts of the proposed project and neering culminated in the prefeasibility landowners will acquire a 30% partici- associated development, having re- study in July 1996 (HGP 1996), which pating interest in the joint venture. Fol- gard to legislative and policy provi- indicated technical and commercial vi- lowing acquisition of its interest, the State sions. ability. Thereafter, RNJV was established would on sell 25% to Orogen Minerals to prepare the bankable feasibility study Limited (Orogen) whilst the landowners • For the proponent, a series of com- for the project. would retain 5% for their benefit. Orogen mitments to measures or actions is owned 51% by the PNG Government which are to be undertaken to mini- RNJV expects the project to produce and 49% by public shareholding. East- mise adverse impacts before, during some 32,800 t/a of high-grade nickel ern Pacific Minerals Limited has a right to take a 10% participating interest in the joint venture, which will dilute to 7% following State and landowner par- ticipation. The project proponent is HPL as man- ager for the joint venture. 1.2 Ramu Nickel Project’s Environmental Plan The Ramu Nickel Project’s Environmen- tal Plan (EP) comprises three volumes: • Volume A: Executive Summary (this volume) which comprises an ex- tended summary in English (first), a shortened summary in Tok Pisin (sec- ond) and an English translation of the shortened summary (third). • Volume B: Main Report. • Volume C: twenty-five technical ap- pendices. Plate 1 Kurumbukari exploration camp located on the Kurumbukari Plateau Ramu Nickel Project—Environmental Plan 1 Executive Summary N 145°00' E MANUS ° NEW 146 00' E IRELAND W E Cape Franseski WEST EAST S River SEPIK SEPIK Bismarck Sea 0 200 New km Bismarck Sea Ireland 4Sepik°00' S MADANG 4°00' S Venus Point Manam Is. Madang PAPUA NEW GUINEA 105m WESTERN New Britain HIGHLANDS 35m SOUTHERN EASTERN 122m HIGHLANDS Lae Bunapak CHIMBU HIGHLANDS Solomon Sea EAST NEW Lake MOROBE WEST NEW BRITAIN Bunapak WESTERN BRITAIN 363m NORTHEN GULF International Port Moresby boundaries 242m Provincial 420m boundaries Coral Sea AUSTRALIA CENTRAL MILNE BAY 254m 128m ADELBERT River Karkar Is. 32m Isumrud Strait Guam Josephstaol RANGE Banum Bagabag Is. Annanberg S o 237m g e r ra ive m R 130m 5°00' S N 5°00' S 1273m SCHRADER Useruk Kerangum Lagoon Alexishafen Aiome Ramu W E Sogeram Gogol Asai River RANGE River Madang S River 020 BISMARCKSimbai River Ato Junction R. 690m km Musak Nuru R. Astrolabe River R. Bagasin Duduela Erima Bay Cape 716m Sepu R. Erima Harbour Rigny RANGE AndalaramOn g an Rai Coast Usino IoworoR. Basamuk 869m R. Ileg Kepler Palpa Point Mea Rai Marum R. R. Nopu Saidor Baia Ahapia R. Highway R. 2315m Karamukei Imbrum 1250 MadangÐLae R. Marea Brahman Bundi R. 3879m Banz 3774m FINISTERRE Mt Wilhelm R. 4509m Dumpu Tauya RANGE Ramu Minj 3135m 3827m 4176 ° ° 6 00' S River 6 00' S Kundiawa Highway Greater Ramu resource block Goroka 1709m Ramu West resource block 3146m M Kurumbukari resource block a r k h Built-up area a m Village 1950m 1638m Kainantu R Proposed 2684mrefinery .