Environmental Scoping Information
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SECOND SCHEDULE ENVIRONMENTAL IMPACT ASSESSMENT (S2EIA) JABATAN PENGURUSAN SISA PEPEJAL NEGARA (JPSPN) SECOND SCHEDULE ENVIRONMENTALHYDROLOGY, SCOPING HYDROGEOLOGY INFORMATION AND (ESI) GEOLOGY IN ENVIRONMENTAL IMPACT ASSESSMENTProposed Development OF PROPOSED of Solid Waste TransferSOLID Station WASTE TRANSFERon 12.474 STATION, Acres of Land PEKAN on Lots NENAS,1336 & 1337, PONTIAN Pekan Nenas, MukimJOHOR Jeram Batu , Daerah Pontian, Johor Darul Takzim PROJECT PROPONENT EIA CONSULTANT MAY/2019 Jabatan Pengurusan Sisa Pepejal Negara Iktisas Environment Sdn. Bhd. Kementerian Perumahan dan Kerajaan Tempatan Lot 303C, Lorong Selangor, Fasa 4B, Aras 23 & 24, No. 51, Pusat Bandar Melawati, Taman Melawati, Jalan Persiaran Perdana, Presint 4 53100 Kuala Lumpur 62100 Putrajaya DECEMBER 2018 ii TABLE OF CONTENT CHAPTER TITLE PAGE 1.0 INTRODUCTION 1 1.1 Aim and Objectives 2 1.2 Scope and Limitation of Work 2 2.0 PROJECT BACKGROUND 2 2.1 Study Area 3 2.2 Topography 3 3.0 EXISTING ENVIRONMENT 5 3.1 Hydrology and Drainage 5 3.1.1 Rainfall Distribution Data 7 3.1.2 Surface Runoff 8 3.1.3 Estimation of Peak Flow 8 3.1.4 Existing Drainage 8 3.2 Hydrogeology 11 3.3 Geology 12 3.3.1 Geomorphology of Project Area 12 3.3.2 General Geology and Mineralization 14 3.3.3 Soils in Project Area 16 3.4 Groundwater Quality 18 3.5 Sensitive Areas 20 4.0 METHODOLOGY 21 4.1 Modelling Approach 22 4.1.1 Flow Model 24 4.1.2 Transport Model 25 4.2 The Conceptual Model 25 4.3 Boundary Conditions 29 4.5 Method of Impact Assessment and Analysis 31 5.0 EVALUATION OF IMPACT ON THE ENVIRONMENT 32 5.1 Hydrology and Hydrogeology 32 5.2 Results of Groundwater Modelling 33 5.3 Discussion on Potential of Groundwater Contamination 36 5.4 Geology 36 iii REFERENCES 38 1.0 INTRODUCTION The Environmental Impact Assessment (EIA) is prepared to identify, predict, evaluate, and communicate information on beneficial and adverse impacts on the hydrology, hydrogeology and geology condition that can detail out the mitigating measures. The emphasis on the these environment provides suitable options of perspectives on the site, resources, and mitigation measures that can be identified at an early stage to maximize positive impacts, leverage adverse and damaging impacts, and reduced costly remedial measures. As stated in statutory requirement for activities which have been prescribed under Section 34A (2C) of the Environmental Quality Act (EQA) 1974, any prescribed activities require an EIA to be submitted to the Director General of Environment. In the EIA Report, the Project Proponent makes a legal pledge with commitment to implement pollution prevention and mitigation measures (P2M2) to reduce the adverse impacts to the environment. The EIA Report also serves as a decision making tool for the project approval authority to consider approval for implementation. The document that reported the Second Schedule Environmental Impact Assessment (S2EIA) Study for the Proposed Development of Solid Waste Transfer Station (PNTS) on 12.474 acres of land on Lots 1336 & 1337, Pekan Nenas, Mukim Jeram Batu, Daerah Pontian, Johor Darul Takzim. Ikhtisas Environment Sdn Bhd (IESB) was appointed by Jabatan Pengurusan Sisa Pepejal Negara (JPSPN), Kementerian Perumahan dan Kerajaan Tempatan Ministry of Housing and Local Government (KPKT) as the environmental consultant to carry out the EIA study for this Project. Enquiries and correspondence pertaining to this study can be made to the proponent or consultant given in Table 1.1. Table 1.1 Proponent and EIA Consultant for the DEIA Proponent EIA Consultant Aras 23, 24 dan 34, Kementerian Iktisas Environment Sdn. Bhd. Perumahan dan Kerajaan Tempatan Lot 303C, Lorong Selangor Fasa 4B, Pusat No.51, Persiaran Perdana, Presint 4 Bandar Melawati, 53100 Kuala Lumpur 62100Putrajaya. Tel: +603-4105 4417 Tel: +603-8000 8000 Email: [email protected] Faks: +603-8891 3190 Golden Ecosystem Sdn. Bhd. Address: D-06-01 – D-06-08, Menara Mitraland, No. 13A, Jalan PJU 5/1, Kota Damansara PJU 5, 47810 Petaling Jaya, Selangor, Malaysia. Tel: +603 7629 4112 Fax: +603 7629 4113 The future solid waste PNTS play an important role in a community’s total waste management system, serving as the link between a community’s solid waste collection program and a final waste disposal facility. While facility ownership, sizes, and services offered vary significantly among TSs, all the TSs serve the same purpose of consolidating waste from multiple collection vehicles into larger, high-volume transfer 2 vehicles for more economical shipment to distant disposal sites. In its simplest form, a transfer station is a facility with a designated receiving area where waste collection vehicles discharge their loads. The waste is often compacted, then loaded into larger vehicles (usually transfer trailers) for long-haul transportation to a final disposal site, typically a landfill, waste to- energy plant, or a composting facility, or an incineration plant. No long-term storage of waste occurs at a transfer station; waste is quickly consolidated and loaded into a larger vehicle and moved off site, usually in a matter of hours. In Pontian District Local Plan (RTD) 2030 (JBPD Johor, 2017), 60% of solid waste will undergo an integrated isolation method (Material Recovery Facilities) from a solid waste disposal site or PNTS which is the separation method will be applied to the solid waste that can be recycled. For solid waste management, Pontian District has a proposal to provide a PNTS that will collect solid waste before being sent to the Seelong solid waste disposal site within capacity in 1914 tons/day. The proposed transfer station should be equipped with the latest technologies such as the preparation of "Material Recovery Facilities" as well as compactor machines to condense solid waste to reduce volume and load more to transfer lorry (RORO). 1.1 Aim and Objectives As part of the approved Term of Reference (TOR), a study on hydrology, hydrogeology and geology condition is needed for the mentioned EIA. Therefore, the study was carried out with the aim to investigate the hydrological, hydrogeological and geological condition for Environmental Impact Assessment (EIA) at PNTS. To achieve the aim, two objectives are summarized as follows: (1) To develop groundwater flow and transport using site-specific parameters of the proposed project area in Pekan Nenas, Pontian. (2) To evaluate model simulation and calibration based on existing baseline data. 1.2 Scope and Limitation of Work The scope of study is divided into two main part of work, which are (1) data collection and baseline condition of the site hydrology, hydrogeology and geology, and (2) groundwater flow and transport modelling that considered designated input data, initial and boundary condition of the groundwater model. 2.0 PROJECT BACKGROUND Transfer stations are the integral part of municipal solid waste management. They essentially function as transit waste collection centres enroute to the landfill facility. The concept of a transfer station is based on the fact that when the final disposal site is remote from the collection area. This method is considered more cost effective to transport the waste in larger load vehicles or trailers more suited for the long journey to the final disposal site, rather than to be disposed off by small collection vehicles 3 designed for house-to-house collection of municipal solid waste. In addition, TSs can also serve as collection points for recyclable wastes and materials. The Ministry of Housing and Local Government (MHLG) has identified a 12.474 acres site in Pekan Nenas to be developed for 150 tonne per day (TPD) solid waste reception within 20 years of operation. The solid waste is expected to be disposed at Seelong Sanitary Landfill. 2.1 Study Area The proposed waste PNTS will be developed on the Lot 1336 and 1337 of Mukim Jeram Batu located at latitude 1.53185 and longitude 103.51714 as shown in Figure 2.1, which is adjacent to an existing landfill at the end of Jalan Ayer Puteh, Pekan Nenas. The project area is estimated to be about 2.58 ha. The existing landfill, which surpassed its design capacity and is overdue for full closure. The landfill was design to function as Level 2 landfill (controlled tipping) but lacks treatment facilities and environmental controls to mitigate contamination of surrounding areas. Some of the waste landfilled is exposed to the elements without sufficient earth covering since source of earth is not available at site. Scavenging activities is prevalent and the site posed an environmental and safety hazard. Public complaints from neighbouring settlements of odour, vectors, and smoke from frequent landfill fires, as well as the poor condition of the access road, has rendered this site a disposal crisis and warrants immediate full closure and to be substituted with another more environmental disposal facility. Portions of the landfill have been partially closed, but since waste is still entering the landfill daily, the remaining operating area is becoming more difficult to control in terms of trafficability and safety. Leachate is discharged from the waste landfill via leaching from exposed and uncovered slopes, as well as mixing with stormwater drainage flow if earth cover is insufficient to prevent contamination of surface water. In the case of Pekan Nenas landfill, some uncovered portions of the waste fill has allowed leachate to mix with the stormwater drainage trenches, resulting in leachate eventually finding its way to Sg Jeram Choh since there is no current functioning leachate treatment system at the site (Ranhill Consulting Sdn Bhd, 2011). In considering the existing landfill, chemicals can leach into the ground water by means of precipitation and surface runoff. New landfills are required to have clay or synthetic liners and leachate (liquid from a landfill containing contaminants) collection systems to protect ground water.