EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
EXECUTIVE SUMMARY
ES.1 INTRODUCTION
ES.1.1 Project Title and Location
This is a Schedule II Environmental Impact Assessment report prepared for project entitled, as per the Terms of Reference: THE PROPOSED RESIDENTIAL AND COMMERCIAL DEVELOPMENT ON LOT 26413, MUKIM SETAPAK AND LOT 3538, MUKIM ULU KELANG, KUALA LUMPUR
It is noted that in the documents that were submitted to Dewan Bandaraya Kuala Lumpur (DBKL) applying for amendment to the approved Layout Plan, the title of this project as per the correspondance with Dewan Bandaraya Kuala Lumpur is: CADANGAN PINDAAN PERMOHONAN PELAN SUSNATUR BAGI PEMBANGUNAN PERUMAHAN BERSTRATA BESERTA RUMAH KELAB DI ATAS LOT 26413 MUKIM SETAPAK DAN LOT 3538 MUKIM ULU KELANG, DAERAH KUALA LUMPUR (R12 WANGSA MAJU) PADA PELAN YANG TELAH DILULUSKAN PADA 11.10.2004 UNTUK TETUAN NOVA PESONA SDN BHD.
Thus both the above titles refer to the same project. For the sake of brevity, the proposed project shall herein after be referred to as the “Wangsa Maju Project” or just “Project”
The proposed development, covering an area of 54 hectares, is located on Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Daerah Kuala Lumpur, in Sector R-12 Wangsa Maju. The hilly site used to be part of a rubber estate (Ladang Hawthornden). It is approximately geo-referenced at 3o 11’ 40” N and longitude 101o 44’ 59” E. The project area is under the jurisdiction of Dewan Bandaraya Kuala Lumpur (DBKL) as the Local Authority.
The Key Plan and Location Plan of the proposed project is shwon in Figure 1.
ERINCO Sdn Bhd ES-1 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
ES.1.2 Project Proponent and Qualified Persons
The Project Initiator, Land Owner and Developer for the project is Messrs. Nova Pesona Sdn Bhd, a subsidiary of Tan & Tan Development Berhad and member of the IGB Corporation Bhd Group of Companies. Nova Pesona Sdn Bhd is a private organization.
The address, contact numbers and key responsible persons of the Project Initiator are provided below:
Nova Pesona Sdn Bhd Level 29, The Gardens South Tower, Mid Valley City Lingkaran Syed Putra 59200 KUALA LUMPUR Telephone: 603-2289 8989 Fax. 603-2287 9882 Contact: Mr. Teh Boon Ghee & Mr Tan Yee Seng (Directors)
The project consultants for the various aspects of the project include: Planner – GDP Planners Sdn Bhd Architect – GDP Architect Sdn Bhd Geotechnical Consultant – G&P Geotechnics Sdn Bhd C&S Engineering Consultant – G&P Special Structures Sdn Bhd Traffiic Consultant – Atur Trafik Sdn Bhd Landscape Architect – Walrus Design Sdn Bhd Land Surveyor – Studioukur Geomatics Sdn Bhd DEIA Study – ERINCO Sdn Bhd
The Study Team Leader for the EIA study is Ms Maria Violetta Thomas (DOE Registration No: C0154), from environmental consultant firm Messrs ERINCO Sdn Bhd.
The list of EIA Study Team members is summarised in Table 1
ERINCO Sdn Bhd ES-2 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
ES.1.3 Legal Aspects
The proposed Project is subject to section 34A of the Environmental Quality Act, 1974. An EIA is required for the proposed project under the Environmental Quality (Prescribed Activity) (Environmental Impact Assessment) Order, 2015. The project is listed as a Prescribed Activity under two of the Activities listed in the Second Schedule and one Activity listed in the First Schedule of the EIA Order 2015, as follows:
SECOND SCHEDULE 13. DEVELOPMENT IN SLOPE AREA: (a) Development or land clearing of 50 percent or more of an area with slope greater than or equal to 25o but lesser than 35o. (b) Construction of road, tunnel or bridge traversing an area with slope greater than or equal to 35o.
FIRST SCHEDULE 16. HOUSING: Housing development covering an area of 50 hectares or more.
As an activity specified in the Second Schedule, this EIA requires public display and comment. Public display and public comment are defined as display of the report, at a place and within the time determined by the Director General, to obtain public comment in relation to that report. The Second Schedule EIA was previously known as the Detailed EIA or DEIA.
The Terms of Reference for this study was endorsed by the Department of Environment, vide letter reference number: AS(PN) 50/011/100/1115 Jilid 5 (8), dated 12 May 2016, and valid for one year.
ES.1.4 Conformance to Government Development Plans
The proposed project concept (mixed residential and commercial development) and project location (R-12 of the Bandar Baru Wangsa Maju) is in line with the relevant Government Development Plans, namely the KL Structure Plan 2020 and the KL City Plan 2020.
ERINCO Sdn Bhd ES-3 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
The project area is zoned for residential development, as shown in the DBKL Land Use 2020 plan, in Figure 2.
ES.2 TERMS OF REFERENCE
ES.2.1 Endorsement of TOR
The Terms of Reference (TOR) was presented to the Review Panel on 26th Octboer 2015. The minutes of the TOR meeting is attached in Appendix 2.1A, including comments by the Review Panel members.
The Revised TOR was submitted to the Department of Environment (DOE) on 11th March 2016. The Revised TOR was endorsed by DOE vide letter Ref: AS(PN) 50/011/100/1115 Jilid 5 (8), dated 12 May 2016. The endorsement is valid for one year from the date of issue. The endorsement letter is attached in Appendix 2.1B.
The main report of the Revised TOR which was endorsed in May 2016, is attached in Appendix 2.1C.
ES.2.2 Summary of TOR
Key issues that will be addressed in the Schedule II EIA include:
1) Construction on slopes and slope stability 2) Control of stormwater drainage from the site 3) Control of erosion and sediment runoff 4) Traffic congestion due to the development 5) Water quality, air quality and noise 6) Potential loss of vegetation and habitat 7) Concerns and perceptions of the residents in the vicinity of the project
Findings of geotechnical design study, stormwater design study, erosion and sediment control plan, and traffic impact assessment will be presented.
ERINCO Sdn Bhd ES-4 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Socio economic survey shall be carried out within 3km from the Project site boundary with added emphasis on the nearer communities (i.e. within 1km from the Project site boundary).
Sampling of baseline environmental quality for water quality, air quality and noise shall focus on the following: Water quality: water courses leaving the site; Sungai Gisir (river receiving drainage flow from the project site, a tributary of Sungai Klang). Ambient Air Quality and Noise Levels: residences, schools and other receptors within 200m from the project boundary
Flora and fauna within the site boundary and surroundings will be described and assessed.
Recommendations for environmental pollution control and management of environmental impacts will be made based on professional judgement of known applications of technology and Best Management Practices for the control of pollutants into the environment.
Particular attention is given to the following: The protection of existing and engineered slopes: The control of erosion and sediment runoff from the site; The control of stormwater drainage from the site; The control of noise and dust emission during the construction phase The preservation of green areas and natural habitat; The reduction of social conflicts with the affected population; The principles of zoning and buffering for the proposed project in relation to other land uses in the vicinity
ES.3 STATEMENT OF NEED
The proposed Project is located in the Maluri-Wangsa Maju Strategic zone as outlined in the Kuala Lumpur Structure Plan 2020. The proposed development aims to fulfill the needs of providing residential units that was identified for the Maluri-Wangsa Maju Strategic zone.
The Project will provide 1,212 high cost residintial units comprising strata and landed strata properties consisting of low rise condominiums, town houses and strata landed. This
ERINCO Sdn Bhd ES-5 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017 development will also involve infrastructure development and increase the standards of living within the identified strategic zone.
Prior to the 1980s, the whole area of Wangsa Maju used to be a rubber plantation, known as Ladang Hawthornden. In 1983, the Masterplan for the area, then known as Projek Pusat Pertumbuhan Bandar Baru Ladang Hawthornden, was approved, and shown in Figure 3. The proposed site is located in the R-12 sector, and the land use for R-12 was proposed to be developed as High Cost Apartment. For the last 30 years, the Wangsa Maju area has gradually been developing, section by section. Seksyen 1 as low cost apartment, Seksyen 2- 4 medium cost apartment, and Seksyen 5 comprising mixed terrace house, apartment and condominium, all have been completed.
ES.4 PROJECT OPTIONS
The recommended options for the project are as follows:
(1) Develop the project site into a residential and commercial area
(2) Minimize environmental impact, maintenance and security issues by providing landed strata development with gated community concept
(3) Proceed with the “Build Out” option of the proposed project to be in line with the needs outlined in the KL Structure Plan 2020 and KL City Plan 2020
ES.5 PROJECT DESCRIPTION
ES.5.1 History
The project has been undergoing planning procedures since 2003, when Nova Pesona Sdn Bhd was formed and given the responsibility for the planning construction and management of this Project.
A summary of the key approvals is provided in Figure 4.
ERINCO Sdn Bhd ES-6 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
ES.5.2 Location
The Project site is located on Lot 26413, Mukim Setapak and Lot 3538, Mukim Ulu Kelang, Kuala Lumpur. This area is known as Sector R12, Bandar Baru Wangsa Maju, Kuala Lumpur. It is approximately geo-referenced at 3o 11’ 40” N and longitude 101o 44’ 59” E.
The Project site can be accessed along its western boundary, via Jalan 1/27c, from Jalan 34/26 in Seksyen 5 Wangsa Maju. Major roads and highways leading to the site include: Jalan Genting Kelang, to the west of the site Lebuhraya Duta – Ulu Kelang (DUKE), to the south of the site Middle Ring Road 2 (MRR2), to the east and north of the site
Figure 5 shows the major roads surrounding the project site.
ES.5.3 Concept
Approximately 54 hectares of hilly terrain will be developed under this project located in Sector R12 of Projek Pusat Pertumbuhan Bandar Baru. The hill slope development project comprising 1,212 high-end residential and commercial units adopts a “landed strata residential development within a gated community” concept.
The development will follow the topography of the site, involve minimal earthworks, and minimal clearing (clear only the building plinth area and build on stilts).
Ambient landscaping and retention of existing vegetation as green lungs and buffers is an important inclusion for the project. A large portion of the site will remain green with the incorporation of a Linear Park, Green Area to the east of the Telecom road to be surrendered to DBKL, and green areas around the strata buildings. The Linear Green Park will provide vegetated buffer of up to 200m as well as hiking trail and viewing decks for recreation.
Figure 6 shows the overall extent of green area including landscaped open spaces within building lots.
ERINCO Sdn Bhd ES-7 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
ES.5.4 Development Density
The development is designed with a density of 9 units/acre or 45 persons per acre. This is lower than the norm for development within DBKL of 12 units/acre or 60 persons per acre. The plot ratio for commercial and recreation area is 1:3. This is relatively lower than the standard of 1:1.25 as outlined by the Town and Country Planning Department.
ES.5.5 Development Components
The Project comprises 1,212 residential units, including low and medium rise condominium units, strata villas, strata town houses, strata terrace houses, and a bungalow unit; a commercial village near the entrance, Linear Recreational Park, green area and related amenities.
The Layout Plan is shown in Figure 7, and the breakdown of the development components ish provided in Table 2.
ES.5.6 Project Phasing Plan
The Phasing Plan (Figure 8) will generally follow the parcels of the project. The description of each phasing parcel is provided in Table 3, and the tentative development phasing program is shown in Table 4.
The main access road and infrastructure will be constructed in phase 1. Subsequently, as each parcel or phase is developed, the associated infrastructure and amenities will be constructed. These include internal roads and drains, OSDs, water supply pipe work and water tanks, sewer pipeline reticulation, electrical power lines and telecommunication lines. Landscaping for the internal open spaces will also be carried out as each parcel is completed. Structures for the Linear Park will be constructed once all other parcels have been developed. The vegetation in the Green Area will remain untouched and later surrendered to the DBKL.
ES.5.7 Summary of Project Activities
Project activities include:
ERINCO Sdn Bhd ES-8 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Pre-construction activities such as surveys, site investigation and baseline environmental monitoring. Construction activities such as site clearing and earthworks, construction of infrastructure components (e.g. road, water storage tanks, sewer pipeline, electricity substation and cables), building of residential units and structures, landscaping. Operational activities are all those activities generated by the occupation of the development, such as consumption of electrical power and potable water, generation of wastewater and solid waste, generation of in-coming and out-going traffic, maintenance of slopes and drainage system.
The main activities involved in each stage of project development are summarised in Table 5.
ES.6 EXISTING ENVIRONMENT
ES.6.1 Topography
The project site is situated in hilly terrain with ground elevations ranging from 90m to 290m above mean sea level. The northern (Seksyen 6) and western (Seksyen 5) boundary is at a lower ground elevation, and the southern and eastern (Bukit Dinding) boundary is at a higher ground elevation. The residential areas of Seksyen 5 and Seksyen 6 are located to the west and north of the site, respectively. The site is generally covered by rubber trees, shrubs and other secondary vegetation.
Some pre-formed cut slopes ranging from about 34m to 40m height are found next to the boundary at the southwest. The cut slopes with slope gradients of more than 40o are generally covered with vegetation. Rock outcrops are observed within some of the cut slopes mentioned above, and along the boundary.
The topographical survey shows that several creeks have formed. These natural ephemeral or intermittent streams traverse the site from the highest part near Bukit Dinding and telecommunication tower, down to valleys at the north, west and southwest of the proposed site.
ERINCO Sdn Bhd ES-9 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
ES.6.2 Geological Terrain Mapping
Based on the topographical survey, slope analysis and terrain classification was carried out, and the Construction Suitability Map was generated. The Geological Terrain Mapping report was submitted to Jabatan Mineral & Geosains (JMG) and approval was obtained on 10th April 2014. The approved Construction Suitability Map is shown in Figure 9.
ES.6.3 Geology and Subsurface Condition
The general geology of the site comprises the Hawthornden Schist Formation, which consists of metamorphic sedimentary rock of fine grain phyllite and schist. Chemical weathering is the dominant weathering process.
Subsurface Investigation (SI) showed that the overburden subsoil was between 1m and 35m thick. The majority of the subsoil comprised Sandy SILT and SILT, while the bedrock formation was categorised as Meta-sedimentary.
Boulders of sizes ranging from 0.3m to 1.5m were also detected in some of the boreholes. Site observation concurs that rock outcrop and rock slope are commonly found within the proposed site.
The highest groundwater level recorded in the standpipes was 3.7m below ground level. Generally, it was deduced that groundwater level is low, deeper than 5m, for the proposed site.
ES.6.4 Hydrology and Drainage
The Survey Plan shows that there are valleys where rainfall runoff would flow. However site observations indicate that many of these drainage courses are ephemeral or intermittent streams that are usually dry, and only have flow when there has been rain.
There are some road side drains at the downstream portion of the site near the residential areas of Seksyen 5 and Seksyen 6 Wangsa Maju. These drains receive stream discharge from the site, and eventually flow into Sungai Gisir to the north, thence into Sungai Klang to the east. The urban drainage in the immediate vicinity of the site is shown in Figure 10.
ERINCO Sdn Bhd ES-10 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
ES.6.5 Meteorology
The metreological data was obtained from the Subang meteorological station for the period from 2004 to 2016.
The project site and surrounding area experiences an equatorial climate, which can be characterized by relatively uniform temperature with high relative humidity with little daily and seasonal variation. The region also experiences an abundance of rainfall.
The 24-hour mean maximum temperature was within 31.9 °C to 33.8 °C, with highest mean maximum temperature of 33.8 °C (recorded in April) and lowest mean minimum temperature of 24°C (recorded in January). The monthly average relative humidity was within the range of 75.9 % to 82.4 %, with higher humidity observed in month of November.
The month of November experiences the highest rainfall (369 mm), whilst June experienced the lowest average rainfall (129 mm). During the period of 2004 to December 2016, the average annual rainfall was found to be 2,910 mm/year. The number of rainy days per year ranged from the lowest of 182 days in 2005, to the highst of 225 days in 2006.
Calm periods (wind speed less than 0.3m/s) were prevalant for 17.9% of the time. Wind speed of 0.3m/s to 1.5 m/s from varying directions were experienced about 40.4% of the time, but mainly from the northerly direction. Highest wind speed of 5.5m/s to 7.9m/s was experienced only 1% of the time, mainly from the north, west and south directions.
ES.6.6 Baseline Environmental Quality
Baseline environmental monitoring and analysis was done to evaluate the existing quality of river water, air and noise level near the Wangsa Maju Project site. The environmental monitoring stations are shown in Figure 11.
Water samples were taken from 8 locations, including one location for river water location (RW1 along Sg Gisir) and the rest are from the drainage streams leaving the site (S1 to S7). The drainage stream at S4 was found to be dry at the time of sampling.
ERINCO Sdn Bhd ES-11 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
The water quality index (WQI) of the samples were was found to fall within Class II except S1, S2 and RW1. The WQI for S1 and S2 fell into Class III. The WQI for RW1 (Sg Gisir) fell into Class IV. This is due to drainage runoff from the residential and commercial areas of Lembah Keramat in the north, and Wangsa Maju (Seksyen 5 and Seksyen 6) in the south, all of which flows into Sg Gisir.
The baseline ambient air quality in the vicinity of the project site, in terms of Total
Suspended Particulates, PM10, PM2.5, Sulphur Dioxide, Nitrogen Dioxide, Ozone and Carbon Monixide, all fall within the recommended Malaysian Ambient Air Quality Standard.
Ambient noise levels at most of the sampling locations were recorded above the guideline limit of 55 dB(A) for day time and 45 dB(AP for night time, for medium densitiy suburban residential areas. The main source of noise at the sampling points from the traffic movement at nearby roads. At point N5, the additional sources of noise are from school activities and commercial activities in the vicinity.
ES.6.7 Biological Environment (Flora and Fauna)
The Project Area is part of a much larger non-operational rubber area. The Project Area is now dominated by old rubber trees and their saplings. Some secondary vegetation have crept in. The Project Area is surrounded by several housing schemes.
The sensitive areas in the vicinity of the Project Area, in terms of biological environment, indicated in Figure 12, are as follows
Adjoining south is a "Green Area" of Bukit Dinding, which includes the corridors of the road up the hill to the telecommunication tower at the peak of Bukit Dinding. Hutan Rizab Ampang, about 1.5 km to the east. Zoo Negara about 1.5km to the northeast of the Project site Klang Gates Dam, about 4 km to the north. Sungai Klang, running from north to south, about 1 km to the east.
Reflecting the original status of the Project Area as an old rubber estate, 90% of the canopy is dominated by old rubber trees. Several segments of the fringes of the Project Area had been previously cleared and are now dominated by Acacia, Atrocarpus species (Sukun and
ERINCO Sdn Bhd ES-12 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Terap), Leucaena species and Alstonia augustifolia (Pulai) There were about 130 plant species in the Project Area. About 32 of them are introduced and cultivated species, mostly of fruits and ornamentals, while about 40 are also found in natural forests. The rest are mostly secondary vegetation.
The plant biodiversity in the Project Area is lower than that found in a more natural forest area like in the Klang Gates region with about 176 species..
Due to the poor vegetation status, the wildlife status is also poor. The Project Area has about 54 species of birds. There are about 121 bird species in the more natural forest area of the Selangor Heritage Park. Thus, the bird biodiversity of the Project Area is much less than that of a natural habitat. About 16 species of birds found in the Project Area were also found in Selangor Heritage Park.
Investigations indicate these large animals were found in the Bukit Dinding rubber area, vis civet cats, monkeys, wild boars. No tapirs, tigers, and elephants are found in the Project Area.
ES.6.8 Land Use
The project site and most of its surroundings are located within the DBKL local authority area of the Federal Territory of Kuala Lumpur. However, some of the areas beyond the 1km radius to the east of the site, falls in the Majlis Perbandaran Ampang Jaya (MPAJ) local authority in the state of Selangor.
Figure 13A shows the overall land use within 5 km radius of the project site, as provided in the Draft Kuala Lumpur City Plan 2020, the Rancangan Tempatan Majlis Perbandaran Ampang Jaya 2020, and Rancangan Tempatan Majlis Perbandaran Selayang, 2020. The legend for the land use maps is provided in Figure 13B.
The land use within the 1km radius falls within the DBKL area, comprising mainly residential commercial and institutional areas. Some of the signficant land use components in this area are:
Wangsa Maju Seksyen 5 (west) – residential area, SMK Seksyen 5, Surau Jumaat An-Naim
ERINCO Sdn Bhd ES-13 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Wangsa Walk, Wangsa Link, Aeon Big (west) – commercial area Kementerian Pertahanan, Jabatan Latihan Khidmat Negara (west) – institutional area Wangsa Maju Seksyen 6 (north) – residential area, Fairview International School, Kompleks Sukan MSN Bukit Setiawangsa (south) – residential area Bukit Dinding and Telecommunication Tower (east) – green area
As the distance from the site increases beyond 1km, some patterns emerge. The land use to the northwest, west, southwest and south becomes more and more urbanized. The Kuala Lumpur City Centre lies about 4km from the Project site in the southwest direction. Institutions in this region include the Kolej Universiti Tunku Abdul Rahman, Army Camp, Police Academy, University Teknologi Malaysia, Institut Jantung Negara and Hospital Kuala Lumpur. There are a few recreational areas such as Zoo Negara, Kelab Golf Darul Ehsan, Royal Selangor Golf Club, PDRM Golf Club and Taman Titiwangsa.
In the east, northeast and southeast direction, the land use changes from sub-urban to green and forest reserve area beyond the 3km radius. The Klang Gates Dam lies to the north, while the Hutan Rizab Ampang lies to the east and southeast of the site.
ES.6.9 Socio Economic Aspects
Total population under Mukim Setapak is 293,280 in which 274,639 is Malaysian citizens and the balance of 18,641 is non-Malaysian citizens. Meanwhile for Mukim Ulu Kelang, total population recorded 26,467 citizens which are 25,763 is Malaysian citizens and 704 is non- Malaysian citizens. Referring to the stastical data from Malaysia Population and Housing Census, 2010, Malays and Bumiputera showed the highest ethnicity in Kuala Lumpur at 45.9%, second Chinese (43.2%), Indian (10.3%) and others 1.6%. Gender wise, the male population is slightly higher than female for 2012 to 2015 data.
Primary data were gathered through interviews using structured social survey questionnaires, to further understand the people’s anticipation and feelings about the project.
The socio-economic study covered the human settlements up to 3- km radius around the proposed site. This area was found to be developed with a moderate to high population density, and located within an urbanized setting with established infrastructure. Beyond the
ERINCO Sdn Bhd ES-14 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
3-km radius the settlements would not be significantly affected by the project. The map of the area surveyed is shown in Figure 14.
In addition to the interview-based data, information was also obtained through Public Dialogue sessions attended by residents and resident association representatives, as well as representatives from DBKL, technical agencies, consultants and developers.
The main issues of concern that were raised during the survey and Public Dialogue were: 1) Lack of information about the project 2) Fear of potential landslides due to development on hill slopes 3) Traffic impedance and traffic congestion due to the construction and occupation of the proposed development
ES.6.10 Traffic and Transportation
The travel demand to and from the vicinity of the Study Area is presently served by private vehicles running on a relatively well developed urban road network and an efficient public transportation system comprising buses, taxis and rail transportation. The proposed development area in Wangsa Maju is served by the LRT Kelana Jaya Line. Numerous bus stops are also provided in the surrounding area for feeder bus services.
The main roads in the vicinity of the Project site are: Jalan 34/26 Jalan 8/27a, Jalan 6/27a Jalan Mohd Yatim Yahaya
Smaller roads serving the residential areas that are near the Project site include: Jalan 1/27c, Jalan 10/27a, Jalan 14/27 (Seksyen 5) Jalan 1/27d (Seksyen 6) Jalan Bukit Setiawangsa
The traffic survey was conducted as shown in Figure 15. The junction analysis shows that while some of the juctions are currently operating at a very good level of service during the AM and PM peak hours, many of the junctions studied are currently operating at a LOS of F (forced flow). It was oberserved that eight of the junctions nearest to the Project site, namely
ERINCO Sdn Bhd ES-15 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
JC1, JC2, JC3, JC4, JC5, JC6, JC8 and JC14 are all currently operating at good to tolerable Level of Service during the AM and PM peak hours, while the rest are currently operating at LOS of F.
The primary ingress and egress access to the Proposed Development site is at Jalan 1/27C, while the secondary ingress and egress access to the Proposed Development site is on Jalan Bukit Setiawangsa. Figure 16 show the ingress accessibility to the Proposed Development.
ES.7 ENVIRONMENTAL IMPACTS AND MITIGATION MEASURES
The potential environmental impacts expected to arise from the implementation of the proposed Wangsa Maju Project can be classified into construction phase impacts and operational phase impacts. (Chapter 7 and Chapter 8 of the EIA respectively). These impacts and the associated mitigation measures are summarized in Table 6 attached and briefly discussed in the following paragraphs.
ES.7.1 CONSTRUCTION PHASE
ES.7.1.1 Slope Stability
Impacts The issue of slope stability one of the main considerations in the design of this development. Potential impacts arising from slope stability issues: Loss of protective vegetative cover which exposes the soil to erosive agents Uncontrolled runoff which are agents for erosion Disturbance to soil strata leading to weakness in the slopes
Mitigation Measures Designed to minimise clearing and earthworks so that erosion is minimised Roads will closely follow the natural contour Use of retaining walls and soil nailed slopes along the roads to minimize earthworks and reduce potential for erosion Buildings are designed to have small building footprint and building on stilts, to minimize cut-and-fill requirements
ERINCO Sdn Bhd ES-16 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Achieve desired Factor of Safety (FOS) for slopes by regrading the slopes to gentler gradient, use of retaining walls to retain slopes and reinforcing slopes with soil nails Install instrumentation to monitor ground movement during and after construction works. Monitoring of ground movements will allow mitigation of geotechnical issues in a timely manner.
ES.7.1.2 Soil Erosion and Sedimentation Impacts Sediment deposition in downstream watercourses reduce the stream capacity and can lead to localised flooding. Silt on roads pose potential hazard to road user and cause unpleasant aesthetic surroundings. Increased TSS content and turbidity in surface water reduce light penetration into the water column and reduce photosynthetic rates of aquatic flora, impact on aquatic life.
Erosion Risk Analysis
By applying the Universal Soil Loss Equation (USLE), the soil erosion risk model was developed to predict erosion rates at the Project site under four scenarios: 1) Existing Condition – the site as it is now 2) Worst Case Scenario – the construction site completely cleared with no mitigation measures 3) With Mitigation Measures – the site during construction phase having incorporated all mitigation measures 4) Post Construction Scenario – the site after construction has been fully completed and occupied
Figure 17 shows the result of the erosion risk analysis under the four conditions described above.
Generally, the analysis shows that the erosion risk will revert to pre-development levels or less once the construction of project has been completed. This is because the whole development area will be under some form of surface cover such as turfing, shrubs, trees, road, pavement and building.
ERINCO Sdn Bhd ES-17 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Mitigation Measures It should be noted at the outset, that the development of the Wangsa Maju Project will carried out in such a way as to: Preserve the existing vegetation as much as possible, for example in the Linear Park, the Green Area near Telekom Tower, and the open spaces/green area within the development parcel; Follow the topography of the site in order to minimize cut and fill; Minimize disturbance of the land. As far as possible, only the building plinth for the residential units will be worked on, while the rest of the land will be untouched, except for slope strengthening and slope stabilization work; Ensure that slopes are stable or engineered to be stable; Ensure that erosion and surface runoff is properly controlled
The erosion and sedimentation impacts arising from the land activities can be contained and effectively mitigated through application of structural and non-structural Best Management Practices (BMPs). The land disturbing pollution prevention and mitigation measures proposed for the Wangsa Maju project site are as follows:
Minimizing Soil Erosion
1) Land clearing and construction work shall be conducted by stages. a. Demarcate areas to be cleared within the Parcel to be developed. b. Clearing and earthwork to be carried out ONLY within the demarcated area. c. Only the area currently under construction is exposed at any one time d. Retain vegetation on slopes that are not disturbed e. Upon completion of work, stabilize worked area and slopes, before proceeding to the next stage or parcel of development. f. Any exposed land shall be turfed or vegetated within two weeks
2) Schedule construction of key structural controls before site clearing a. Stabilized site access points b. Main sediment basins and temporary access roads c. Silt traps for each phase d. Main earth drains and water ways to be planned with buffer strip of vegetation e. Earthworks to be planned and managed such that any cut portions will be filled in a section of the same phase and compacted the same day. This approach minimizes the need for stockpiling of suitable earth
ERINCO Sdn Bhd ES-18 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
3) Planning and design of development within natural constraints and topography of the site. Cut and fill to be minimized.
4) Planning of development activities, especially clearing and earthworks, shall take into consideration the hydrological and weather conditions.
5) Earthworks activities, which include clearing, filling, grading and temporary turfing for each development phase, will be completed in as short a timeframe as possible.
6) Existing vegetation shall be maintained as filters along contours to reduce velocity of surface runoff and improve water quality
7) In the interim between land clearing and earthworks, cleared vegetation and unsaleable tree trunks will be left to mulch on the ground as a temporary measure to provide soil cover for the exposed land.
Preserving the Topsoil 1) All excavated topsoil shall be stockpiled and later used for re-vegetation. 2) Topsoil should be stockpiled in areas where it will not contribute to erosion and sedimentation.
3) Stockpiles of topsoil also conincide with designated biomass decomposition sites and may be mixed with chipped biomass for composting
4) Material stockpiles, access roads and other land disturbing acitvities should be located away from critical areas such as steep slopes 5) Temporary cover or stabilization is required for exposed stockpiles. a. To prevent erosion and sediment runoff b. Tarpaulin or plastic sheets to cover small stockpiles, c. Erosion blankets or seeding for large stockpiles
Access Routes 1) All right-of ways or access routes shall be shown on the ESCP drawing. All vehicular traffic shall stay within the designated right-of-ways. 2) Roads and permanent storm drains shall be installed as early as possible to control runoff during construction. The drains shall be temporarily connected to sediment basins until stabilization. 3) Road shoulders shall be protected mechanically or vegetative against erosion. 4) Unsurfaced areas and roads shall be sprayed with water to reduce dust dispersion during dry periods.
ERINCO Sdn Bhd ES-19 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
5) All access roads to the site shall be paved with heavy duty paver blocks, for a distance at least 10m from where these access roads join the existing paved roads. 6) Wash trough and wheel washing facilities shall be provided at the exit points of construction vehicles, to clean the wheels of vehicles of mud and silt before they leave the site. The washing bay should be the full width of the exit lane.
Drainage Control at Construction Site 1) Drainage control for the construction seeks to a. Intercept runoff and divert away from work area b. Keep onsite runoff velocities low and therefore reduce erosion. 2) Construct perimeter earth drain and earth bund to prevent flow of silt and mud out of the site.
3) Earth bund of compacted soil a. This is used to divert runoff or channel water to a desired location (e.g. towards drainage channels and sediment basin). b. Built near perimeter to keep sediment, and mud from leaving the site c. Constructed across slope to reduce slope length d. Turfed or hydroseeded. 4) Direct runoff water so that it does not run across disturbed and unstable areas. 5) Construct drainage routes and channels in such way that the beds do not self- degrade and contribute to sedimentation problems. 6) Remove the sediment load accumulated in channels during dry season to avoid downstream sedimentation. 7) Temporary interceptor ditches and berms with filters at inlets shall be constructed to direct runoff from development area into sediment basin. 8) No watercourse or the reserves along the watercourse shall be disturbed until approval obtained from JPS. 9) Drains that are not mechanically stabilized shall be grassed and maintained. 10) Provide check dam to control the water flow. 11) Temporary diversion channel will be provided and the sized shall using Manning’s formula.
Earthworks and Erosion Control 1) The cut and fill volume is designed to minimize earth material transportation to or from the project site. The cut volume is more than double of the fill volume; Cut material : 580,415 m3
ERINCO Sdn Bhd ES-20 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Fill material : 282,113 m3 Excess cut material : 298,302 m3 2) Import and export material only for debris and unsuitable material. All surplus material should be place where uneven area or flatten the area till finished. 3) Provide protection covers such as vegetation and plastic sheets on exposed areas. 4) Small areas shall be exposed and graded at a time. The size of the area depends on erodibility of soil and time required for area stabilization after grading is completed. 5) All earthworks exceeding 1.5m in height and depth shall not be cut or cleared until the site is ready to be worked. 6) The cleared ground shall be re-vegetated within three months after commencement of earthworks during the dry season and within one month after commencement of earthworks during wet season.
Sediment Prevention and Control 1) All sediment basins and silt traps shall be located where failure of the embankment will not result in loss of life, damage to homes or buildings or interruption of use or service of public roads or utilities. For the Wangsa Maju project, ten (10) silt traps will be provided. The first 5 silt traps shall be installed at the start of construction during Phase 1 work (building of Road 1). 2) All the site drainage with check dams should be flowing to the proposed sediment basins and silt traps. 3) The proposed sediment trap should be adequately sized and constructed prior to commencement of earthworks. 4) Silt fence shall be installed along site boundary, internal road and foot of slopes. 5) Silt traps and other temporary control measure should only be removed and dismantled when the permanent vegetative cover and control measures are satisfactorily established.
Inspection and Maintenance It is vital that all control measures and management practices be inspected and monitored on a regular basis, and particularly after heavy rainfall. This includes sampling and analysis of discharge from silt trap. Maintenance and repair shall be carried out promptly. For example: o Desilting of silt trap whenever the functional capacity is reduced by two-thirds of the design capacity. o Replacing a stretch of silt fence that has torn or fallen down
ERINCO Sdn Bhd ES-21 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
o Re-turfing a slope, where the turf has not established itself properly o Clearing a blocked drainage channel
Good site management such as the implementation of proper site BMPs to control and treat run-off prior to discharge will ensure that the construction works will not have a significant impact upon the quality of the receiving waters. Monitoring of surface water quality will also be carried out to check that these measures are effective and adequate.
ES.7.1.3 Hydrology and Drainage
Impacts Sediment deposition in drainage system and downstream watercourses reduce the stream capacity and can lead to localised flooding during heavy rainstorms Potential sources of pollution from site drainage are: Sediment from exposed site surfaces, drainage channels, earthworks and stockpiles of excavated materials Fuel, oil and lubricants from construction vehicles Debris and rubbish such as packaging, used construction materials Spillages of chemicals
Mitigation Measures Provide perimeter earth drain and temporary site drainage system, with check dams All site drainage shall be conveyed to sediment basins and silt traps Inspect drainage system at the site regularly, e.g. for blockage, failure, etc The silt/sediment trap should be cleaned regularly once it is filled to about two-thirds capacity and inspected after a heavy rain. Exposed area should be planted with cover crops such as mat turfing and closed turfing to reduce the water flow
ES.7.1.4 Water Quality
Impacts The potential sources of impact on water quality degradation are as follows: Surface runoff from bare areas will have high TSS and turbidity levels Leaks and spills of waste oil and lubricants will contaminate receiving waterways
ERINCO Sdn Bhd ES-22 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Discharge of untreated sewage will pollute the receiving waterways with high BOD, COD, ammonia, phosphorus and E.coli. Gastro-enteric micro-organisms in the sewage discharged can cause outbreaks of water borne diseases such as cholera and typhoid.
Mitigation Measures In maintaining water quality from deterioration during construction period, measures below shall be taken: Proper storage of diesel and fuel in skid tank on hardstanding ground surface with bunded perimeter Proper storage of scheduled waste in labelled drums, on hardstanding ground surface in covered shed Regular collection and disposal of solid wastes Provide adequate temporary sanitary facilities away from drainage systems. The temporary sanitary facilities such as individual septic tanks or package plant or portable toilets must meet specification set by Health Ministry and any effluent discharge must comply with Environmental Quality (Sewage) Regulations 2009. Regular inspection of on-site treatment systems and sanitary facilities. Similar measures as for “Erosion and Sedimentation” above.
ES.7.1.5 Air Quality
Emission of fugitive dust, especially during dry weather and exhaust emission from vehicles and machines are the main concern of air quality. The potential sources of fugitive dust include: Clearing and earthwork activities Movement of construction vehicles and machinery Materials handling Soil tracked out of site and deposited on local public roads
The near sensitive receptors are the residents of: Seksyen 5 Wangsa Maju to the west, especially those living along Jalan 1/27c Seksyen 6 Wangsa Maju to the north, Bukit Setiawangsa to the south.
ERINCO Sdn Bhd ES-23 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Impacts The potential impacts arising from fugitive dust emission: Reduced air quality and visibility due to fugitive dust emissions Emissions from vehicles and machinery. On a regional basis, a greater concern would be the formation of ‘haze’ during the
drier monsoonal months caused by suspended PM10 particles.
Mitigation Measures Spilled earth or soil on the public road leading to the site shall be removed and cleaned immediately. Provide tire washing facilities and wash troughs at the egress points (Jalan 1/27c) Carry out regular surface damping or wetting on bare surface, route used by construction vehicle and stockpiled materials when necessary. Retain vegetation along the boundary. Turf/cover/dampen bare surfaces and stockpiles. Practice strict compliance with speed restriction (30km/hr) for construction vehicles operating within the site or on access roads to the site Open burning is prohibited Periodic maintenance and service of construction vehicles to control black smoke emission
ES.7.1.6 Noise and Vibration
Noise and vibration sources: General construction work and use of construction equipment, such as power generator, compressor, pneumatic tools, earth moving equipment Movement of construction vehicles
The main sensitive receptors are the construction workers within the site, residents of Seksyen 5 Wangsa Maju, Seksyen 6 Wangsa Maju and Bukit Setiawangsa
Impacts Unwanted sound has various effects on human beings ranging from annoyance and discomfort to hearing loss Noise is recognised as a form of pollution because it is hazardous to public health, can cause hearing impairment and psychological stress
ERINCO Sdn Bhd ES-24 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Noise generated during the construction phase is generally short-term and localised
Mitigation Measures Limit work hours from 0830 to 1800 hours Use quieter machines and methods Provide sound insulation and noise barriers On-site plant should be well maintained and regularly serviced. Machines and equipment that may be in intermittent use should be throttled down to minimum when not in use Erect site hoarding at work areas to help contain noise generated
ES.7.1.7 Solid Waste and Scheduled Waste Management i) Municipal solid waste
Municipal waste generated from construction activities include: Used or rejected construction material Domestic waste from the site office and worker’s camp
Impacts Unattended municipal waste at the construction sites could result in: Public health hazard, Unhealthy and unattractive surroundings Obstruct waterways during the rainy season and cause localized flooding Create breeding ground for disease vectors such as mosquitoes, flies and rats. Indiscriminate disposal into or near waterways will result in water quality degradation. Pose fire hazards during the dry season Generate malodour
Mitigation Measures Recycle construction spoil when /where possible. Regular collection and disposal of wastes by licensed solid waste disposal contractors. No burning of waste is allowed On-site reduction through decomposition.
ERINCO Sdn Bhd ES-25 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Good housekeeping practices are essential within the site. ii) Scheduled Waste
Scheduled waste most likely to be generated on site includes those which are generated from vehicle repairs, aesthetics (e.g. painting) and other works associated with building construction. Some of the items which can be classified as scheduled waste are: Spent filter cartridges, scrap batteries, mineral oils/engine cleaning fluids Spent oil and grease Spent solvents Paints
Impacts Scheduled waste, if carelessly handled on site and not stored in suitable containers, can contaminate surface waters and also pose a potential fire hazard on site.
Mitigation Measures Practise good house keeping Store scheduled wastes on hard standing ground in covered area Strictly adhere to Environmental Quality (Scheduled Wastes) Regulations 2005, with regard to handling, storage, and disposal Scheduled waste should be disposed off to Kualiti Alam scheduled waste facility in Bukit Nanas iii) Unregulated Waste Unregulated waste includes the cleared vegetation and waste biomass.
Impacts Indiscriminate disposal not approved by the local authority will result in unhealthy and unattractive surroundings Provide habitat for disease vectors such as mosquitos, flies and rats.
Mitigation Measures Open burning is prohibited Rubber wood to be sold off for downstream beneficial use such as furniture making
ERINCO Sdn Bhd ES-26 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Waste biomass to be used as temporary cover for exposed soil, and mulched or composted on site Excess waste to be disposed at by licensed contractor to nearest approved disposal site
ES.7.1.8 Flora and Fauna
Impacts The Project Area is mostly in an alienated area dominated by old rubber trees. The current status of the vegetation and wildlife is poor. Hence, the Project will have no major impacts on the natural resources.
However, with the development, habitat for the extant wildlife will be reduced. The animals will be confined to a more restricted area to the south of the Projet Area. . During construiction, the large animals such as monkeys, wild boars and civet cats from the adjoining rubber areas may invade workers sites within the Project site. There may be potential conflicts between workers and passing animals. Workers have to take precautions with respect to the passing presence of the snakes cobras and vipers.
For the Project Area of about 54 ha, the total biomass to be removed will not exceed 7,830 tons. The old rubber trunks can be sold off and the remainder can be macerated within site to serve as compost for green areas in the Project Area.
Mitigation Measures Any clearing must be done with adequate controls to prevent soil erosions. All solid waste materials must be disposed to approved dump site. Workers must be trained how to handle passing large animals, especially as not to harm them. Both during construction and operation stages, precautions must be taken with respect to animals fleeing the area, especially venomous snakes. The assistance of PERHILITAN should be sought to remove large animals.
ERINCO Sdn Bhd ES-27 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
ES.7.1.9 Socio Economics
Impacts Complaints about the insufficient information about the project Concerns regarding slope stability, traffic congestion, drainage, dust and noise. Potential for import of communicable diseases previously no endemic to the area, brought in by foreign workers Socio-cultural tensions brought about be the influx of construction workers comprising foreign nationals
Mitigation Measures Specially dedicated access road for the construction vehicles at the safest and quietest point of entry Close supervision of movement of construction vehicles, with limits on timing and speed Adequate signage to alert road users, Provide flag man to control traffic Foreign labour must be approved by immigration authorities and screened by health authorities Ensure the workers are well managed with little confrontation with the local community Provide liaison and communications with the local development and security committee (Jawatankuasa Keselamatan dan Kemajuan Kampung (JKKK)) to disseminate information and deal with complaints
ES.7.1.10 Transportation and Traffic
Impacts Increase in traffic volume from construction transporting vehicles thereby causing congestion of the main access road Transportation of construction vehicle, machinery/equipment and construction material will cause traffic impedance. Increased risk of accidents due to spillage from the construction vehicles that causes the road to be muddy and slippery Deterioration of local road conditions, potholes etc.
ERINCO Sdn Bhd ES-28 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Causes air pollution from exhaust emissions of vehicles.
Mitigation Measures Minimize disruption to the main access road by avoiding the use of construction vehicles on this road during the peak hours (7.00-9.00am and 5.00-7.00pm) Control speed on construction vehicles in residential neighbourhoods and observe all road safety measures. Loads should be covered with tarpaulin, secured with chains and strong ropes Maintain road surface regularly including covering of potholes and wetting of dry surface during dry season. Contractors must ensure that construction vehicles must be well maintained and the drivers observe traffic regulations and are extra careful especially around the settlements
ES.7.2 OPERATIONAL PHASE
ES.7.2.1 Slope Stability
Impacts Slope failure can lead to property damage and threat to human life, in Class II and Class III areas Residual impacts such as minor localised erosion, and minor localised movement of soil across the site
Mitigation Measures Install instrumentation to monitor ground movement Carry out regular slope maintenance inspections (Category A) at least twice a year and during monsoon season and after every heavy rainstorm Carry out Category B inspection when the Category A inspection has observed any abnormalities, or at least every 5 years Inspection and maintenance programme to check on: o Retaining walls o Retaining wall at toe of the slope to stabilize from slide, overturn or collapse o Soil nails o Drains on slopes and berms
ERINCO Sdn Bhd ES-29 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
o Hydroseeding and/or turfing of slopes o Toe of slope o Planting trees with deep roots on the slope to further strengthen the slope Any maintenance or repair work required shall be carried out promptly
ES.7.2.2 Erosion and Sedimentation
Impacts Surface erosion will be minimal as the development area will be under some form of surface cover such as turfing, shrubs, trees, roads, pavement and buildings.
Mitigation Measures At earlier stage after construction completed, siltation and sedimentation are anticipated to persist for some time until the soil settles and stabilizes when exposed areas are vegetated or built up. Any exposed bare earth shall be immediately close-turfed or hydro seeded to reduce the exposure of bare earth to elements such as rain and wind. The pest management shall be planned and using the best techniques to control the pests in acceptance level of golf course standard.
ES.7.2.3 Hydrology and Drainage
Impacts Due to impervious nature of roads and pavements, surface runoff quantities have the potential to increase and contribute to nuisance flooding. Unauthorised disposal of domestic waste directly to the drainage system will lead to clogging and reduction in drainage capacity.
Mitigation Measures Stormwater drainage system has been designed in accordance to the MASMA requirements On Site Detention (OSD) tanks will provide adequate storage and detention of stormwater OSD, inlet and treatment systems should be inspected at least annually Install Gross Pollutant Traps at strategic locations to trap debris and floatables Debris should be regularly removed from stormwater systems for suitable disposal
ERINCO Sdn Bhd ES-30 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Structural integrity should be inspected and any threats repaired immediately Cleaning and maintenance programs to be reviewed regularly to take into consideration local factors such as type of trees, season and rainfall characteristics
ES.7.2.4 Water Quality
When fully occupied, the Wangsa Maju Project (6,958 PE) will generate 1,566 m3/d wastewater into the Bunus Regional STP or Bunus CSTP (Asset No KLR 124 and KLR 347). The Bunus CSTP is located about 4km to the west of the Project Site, at Jalan Chan Chin Mooi, adjacent to the PDRM Golf Course in Taman Titiwangsa. The location of the Bunus CSTP is shown in Figure 18.
Impacts Treatment to design Standard A provides a reduction of more than 90% for BOD and TSS (comparing raw wastewater influent with expected treated effluent). Failure of STP will cause discharge of untreated sewage into Sg Gombak resulting in anaerobic conditions, proliferation of pathogenic organisms, malodour and eutrophication. Blockage and leaks along the sewer enroute to the Network Pumping Station (NPS) at KLR 145 causing unaesthetic, unhygienic and malodorous conditions at the point of leakage or manhole overflow, as well as downstream points.
Mitigation Measures Regular inspection and maintenance of the sewer pipe network within the development site, which convey domestic wastewater to NPS at Wangsa Maju R4, (Asset No. KLR 145) The NPS and Bunus CSTP is operated and maintained by Indah Water Konsortium, and shall comply with the Standard A of the Environmental Quality (Sewage) Regulations 2009. The Bunus CSTP has been designed to discharge treated effluent at better than Standard A levels to ensure protection of downstream receiving waters; whereby the
design effluent levels are as follows: BOD5 = 2 mg/L, SS = 20 mg/L, COD = 30 mg/L
and NH3-N = 1 mg/L. Install grease traps at restaurants and food courts to minimise release of Oil & Grease into the sewerage system. Use organic based herbicide and pesticide for landscape vegetation
ERINCO Sdn Bhd ES-31 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Use slow-release fertilizers to reduce excessive nutrients runoff into receiving water bodies. Avoid over-fertilizing Practise good housekeeping at all times.
ES.7.2.5 Air Quality
Air pollution from the project site is not expected to be significant during the operational phase of the development.
Impacts Emission from exhaust vehicles will be minimal. Fugitive dust emission from the movement of traffic will be substantially reduced as the roads will be paved.
Mitigation Measures Air pollution in the form of exhaust emissions, although not significant, can be further reduced with the adoption of the following measures: Proper maintenance of road network and road surfaces. Landscape road-verges and project boundary with suitable plants to trap dust and particulate matter. Prohibit open burning. Off-site disposal of municipal waste to ensure that the area will not be subject to malodour problems.
ES.7.2.6 Noise and Vibration
Operation of the residential development will not generate any significant noise. No significant adverse impacts are envisaged. No additional mitigation measures are required.
ES.7.2.7 Solid Waste Management
In operational phase, solid waste generated comprises of domestic waste and garden waste.
Impacts Irregular collection and careless dumping of the waste within and outside the project boundary will result in:
ERINCO Sdn Bhd ES-32 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Blockage in drainage system will lead to localised flooding. Accumulation and decomposition of uncollected waste will create unhygienic conditions with both odour and visual impacts and public health related problems Provide ideal habitat for diseases vectors to proliferate. Leachate may cause surface/groundwater pollution. Dumped waste pose a fire hazard
Mitigation Measures Recycle all recyclable material and should be encouraged. Recycle bins should be provided at strategic locations in the development area. Remove debris found in waterways as part of a regular drainage maintenance programme. Solid wastes should be collected 3 times a week for residential units and every day for commercial units, and disposed at approved landfill. No open burning permitted.
ES.7.2.8 Flora and Fauna
Impacts During operation, due to the reduction in habitat, the wildlife are likely to invade the surounding settlements. Intrusion by snakes will be a continual concern
Mitigation Measures Landscaping the project site will be done upon completion of each parcel. Small animals, birds and butterflies can escape to the eastern side of Bukit Dinding area Precautions must be taken with respect to animals fleeing the area, especially venomous snakes. If there is intrusion of snakes or large animals into the development, the assistance of PERHILITAN should be sought to capture and transfer the animals to a safe habitate, e.g. Hutan Rizab Ampang 1.5 km to the east required.
ES.7.2.9 Socio-Economics
Operation of the proposed project involves influx of new residential population into the area, whether owner-occupier or tenants, as well as some commercial activity.
ERINCO Sdn Bhd ES-33 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Impacts Increase population density in the region leading to traffic congestion Concerns regarding slope stability and localised flooding Positive impact: increased revenue to the City due to the new housing development
Mitigation Measures Upgrading of existing road infrastructure and key junctions to achieve acceptable LOS during operation phase Regular routine maintenance of slopes and drainage system Development to progress in tandem with demand.
ES.7.2.10 Transportation and Traffic
Proper access roads and junctions will be provided.
Impacts Within the site, roads and junctions are designed to cater for the predicted population of the proposed Project.
Mitigation Measures Upgrading of the existing road infrastructure, roads and junctions (JC3, JC5, JC12, JC13) Proper directional signage.
ES.8 ENVIRONMENTAL MANAGEMENT AND MONITORING
This section presents the environmental management requirements for the construction and operational phase of the proposed proposed Wangsa Maju Project. Effective management and monitoring of activities on the site will be essential in order to ensure environmental objectives are met and operations are carried out in an environmentally sound and safe manner.
ERINCO Sdn Bhd ES-34 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Environmental Management Plan
The Environmental Management Plan (EMP) is a document that describes how the recommendations of the EIA and any further conditions imposed by the DOE, will be implemented. The EMP will specify monitoring of silt trap discharges, stream quality, air quality and noise levels will be carried out during the construction period, in terms of location, frequency, and parameters. Regular site inspections and environmental audit will be carried out to ensure that environmental protection measures are functioning optimally.
Monitoring of Silt Trap Discharge
The efficiency of sediment retention structures (e.g. silt traps, silt fences) will be monitored by analysing the quality of the discharge. In general the acceptable limits of discharge for silt trap discharge are as follows: Total Suspended Solids (TSS) should be not more than 50 mg/L Turbidity should not be more than 250 NTU
Monitoring of Stream Water Quality
River water samples will be collected and analysed once a month throughout the earthworks phase and every three months thereafter until all construction works are completed. The parameters tested are pH, Total Suspended Solid (TSS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO), Ammoniacal Nitrogen, Faecal Coliform, and Oil and Grease.
Monitoring of Ambient Air Quality
Air quality monitoring will be carried out at the site bordering the nearest residential areas residential and institutional areas (Seksyen 5 and Seksyen 6 Wangsa Maju). Parameters to be analysed include TSP and PM10, and monitoring should be conducted on a monthly or quarterly basis depending on DOE’s Approval Conditions for the EIA Report.
Monitoring of Ambient Noise Levels
Monitoring of noise levels should be carried out at both daytime and night time on a monthly or quarterly basis. The noise levels will be compared against the DOE’s criteria limits.
ERINCO Sdn Bhd ES-35 EIA for the Proposed Residential and Commercial Development Schedule II On Lot 26413 Mukim Setapak and Lot 3538 Mukim Ulu Kelang, Kuala Lumpur For Nova Pesona Sdn Bhd July 2017
Environmental Audit
Environmental auditing is recommended to ensure compliance with the EMP by checking the environmental management procedures and the recommended mitigation measures and monitoring recommendations are being fully implemented. During construction phase, the contractor’s activities should be audited every three months to check for the effectiveness of the EMP.
ES.9 CONCLUSION
The Schedule II EIA has addressed the salient environmental impacts and also provided suitable measures that can effectively mitigate the impacts.
This report concludes that with the implementation of the recommended mitigation measures, and if environmental management of the development is addressed in a manner that promotes awareness and sustainability, there will be minimal significant environmental impacts from the construction or operations of the Proposed Residential and Commercial Development Project at R12 Wangsa Maju, Kuala Lumpur as per the present proposal. It is recommended that the project be allowed to proceed.
ERINCO Sdn Bhd ES-36