P17004 Plant 3 EIA Chapter 6
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Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019 CHAPTER 6 EXISTING ENVIRONMENT 6.1 INTRODUCTION This section presents the existing environmental characteristics within 5 km radius from the Project site boundaries (Zone of Study). Information collected and sourced covered three (3) major components, namely physical, chemical, biological and human activities within the Project’s vicinity to provide an overview of existing environmental conditions of the surrounding the project site at the time of Study. The Zone of Study extends 5 km from the boundary of the study area that covers the overall Press Metal premise including the Line 1 and Line 2 areas. In the event, the assessment impacts are found extending beyond the Zone of Study, the Zone of Study may be expanded where necessary. 6.2 PHYSICAL ENVIRONMENT Premise Physical Setting Lot 36 has total area of 480 acres (195 hectares) and is divided into three (3) blocks as shown in Figure 1-2 and Figure 5-1. Plant 1 is located in Block 1 which is located towards the northern section of Lot 36 while Plant 2 is sited in Block 2 Phase 1 which is located adjacent to Block 1 and in the middle section of Lot 36. Remaining of Block 2 is marked for Phase 2, i.e. for the Project, and for Phase 3, i.e. for future development, whereby both are located towards the southern section. In between Plant 1 and Plant 2, a 70 m buffer is provided and currently houses the supporting components for the operations, such as storage silos, weighing station and concrete batching plant. The overall land terrain of Lot 36 is observed flat with Block 1 and Block 2 Phase 1 being occupied with buildings and structures. Landscaping is also observed surrounding the Plant 1 and Plant 2. At Project site, the land has been levelled. Vegetations comprising of shrubs were observed at Project site. Near to the Plant 2, some areas were being used for storage of leftover construction material and site office from Plant 2 development. These materials will be removed prior commencement of Project’s construction. Plate 6- 1 to Plate 6-6 shows the physical structure are components within Lot 36. Plate 6-1 Existing Potline Building Plate 6-2 Existing Casthouse Page 6-1 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019 Plate 6-3 Existing Anode Rodding Plate 6-4 Existing Storage Silo Workshop Plate 6-5 Product Storage Area Plate 6-6 Project Site Note: Date of images March 2018, January 2019 Page 6-2 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019 Samalaju Industrial Park Samalaju Industrial Park (SIP) is a 7,000 hectare-industrial area developed in 2009 under the Sarawak Corridor of Renewable Energy (SCORE) as one of its five economic development corridors being proposed to be developed over span from 2008 to 2030. SIP development was undertaken by the Regional Corridor Development Authority (RECODA) and currently under the jurisdiction enforcement of the Bintulu Development Authority (BDA). SIP is located approximately 50 km towards northeast from Bintulu town, measured by direct distance, and is accessible by road, namely Jalan Coastal Bintulu-Miri, with land distance approximately 70 km from Bintulu town. Prior to SIP development, the area was mainly oil palm plantation located along the coastal area. As part of SIP planning, BDA has developed the supporting infrastructures and facilities for the industries. These include a dedicated port facility at SIP, centralised sewerage treatment plant, water treatment plant, electricity supply, telecommunication, social infrastructure as well as a new township, of which has been developed in phases over the years. Plate 6-7 to Plate 6-10 shows the current facility infrastructures at SIP. Samalaju Industrial Port Samalaju Industrial Port (Plate 6-7) has total area of 393 hectares and designed for handling up to 18 million tonnes of cargo per year. It commenced its initial operation in 2014 and being developed in phases as SIP progresses. It is now operated and managed by Bintulu Port Holdings Bhd. The port is designed for handling seven major vessels at any one time with productivity capacity or cargo volume of 1,000 tonnes per hour by each of the four conveyor lines. It is fully equipped with sophisticated systems and equipment including handy size berth, handyman berth, barge berth, harbour crane, storage facilities, conveyer system, reach stacker, heavy and high mast forklift, excavator, cranes, wheel loader and many more. For Press Metal operation, the port is fitted with a conveyor system for transfer of alumina from the port to Press Metal, as described in Chapter 5.4. Plate 6-7 Samalaju Industrial Port Page 6-3 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019 Power Supply Power supply to SIP is by Sarawak Energy Berhad (SEB), an entity responsible for the generation, transmission and distribution of electricity in the Sarawak. Electricity supply is sourced from Bakun dam and Murum dam with power generation capacity of 2,400 MW and 944 MW respectively. Water Treatment Plant Sungai Similajau raw water intake plant (Plate 6-8) was developed in 2015 with treatment capacity of 80 million litres per day (80MLD). The water treatment plant supplies treated water to all industries in SIP. Plate 6-8 Water Treatment Plant Sewerage Treatment Plant A centralised sewage treatment plant (STP) (Plate 6-9) has been constructed and operated by the BDA since 2013. The STP was designed with treatment capacity of 25,000 PE catering to all industries in the SIP. Plate 6-9 Centralised Sewage Treatment Plant Page 6-4 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019 Samalaju Eco Park Township Samalaju Eco Park is an 810 hectare (2000 acre) eco-friendly township that was developed by Cahya Mata Sarawak Berhad, to support the development of SIP. In view of its distance from Bintulu, the township is aimed to serve the SIP commercially. The first phase of the Samalaju Eco Park development consisting of low-density residential development with 16 blocks of 4-storey walk-up apartment (Plate 6-10), totalled to 256 units has now been completed. Development of two blocks of shop lot are also completed (Plate 6-10). Plate 6-10 Samalaju Eco Park Township Topography Prior to SIP development, the overall area was reported mostly undulating to slightly hilly land which was previously planted with oil palm or of secondary vegetation. Towards the coastal area and river (Sg Similajau) is relatively low lying (>20m above mean sea level (m.s.l.) Areas that have been developed for the industrial activities and Samalaju Port were filled up to platform levels. Topography map of SIP and Project area is shown in Figure 6-1. The current Press Metal premise site occupies a large piece of land with area size of 487 acres (197 hectares). Plant 1 and Plant 2 areas were raised to platform level of 15 m above m.s.l. for its development. For the new Project, the proposed land area will be raised to same platform level. Geology Project site and most of SIP are underlain by arenaceous and argillaceous sedimentary rocks, as well as coal and calcareous beds. This geology formation is a deposit of Neogene Age, a period encompasses the interval between 23 million and 2.6 million years ago. Geological map for the Project area is illustrated in Figure 6-2. Page 6-5 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn. Bhd. Date: June 2019 Soil Soil map for Project area is depicted in Figure 6-3. Soil underlying Project site is mainly red yellow podzolic soils (northern section) and podzols (southern section). Red yellow podzolic soils is characterized as shallow to deep, yellow to red loamy sands to clays; on sedimentary, acid igneous and metamorphic rocks on a gently sloping to steep land. Podzols is characterized as shallow to deep, pale-coloured sands with prominent subsurface accumulation of humus, or, locally, iron; on old or subrecent alluvium or coarse-textured sedimentary rocks on a flat to gently sloping land. Hydrology and Hydrogeology SIP is located at the north end of Similajau River basin (Figure 6-5). Within the basin and at Project area, several river systems were observed, namely Similajau River, Siat River, and several unnamed river streams (Sg. Siod, Sg. Selungun and Sg. Haik). Sg Nyalau is observed north of SIP and reported flows northerly into the South China Sea. Southern section of SIP which include the Press Metal premise has been developed into proper drainage systems and channelled the discharges into Similajau River, that is found towards the south of SIP. Page 6-6 Environmental Impact Assessment for Proposed Expansion of Project No: P17004 Aluminium Smelting Plant on Lot 36, Samalaju Industrial Park, Revision: 0 Bintulu, Sarawak for Press Metal Bintulu Sdn.