Taisei Corporation, Japan
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Prepared By Environmental Section TAISEI CORPORATION, JAPAN (Main Contractor) Implementation of Environmental Management Action Plan for the Outer Circular Highway to the City of Colombo (Project Phase II) OCH, Northern Section 1from Kadawatha to Kaduwela Table of Contents Chapter 1 Introduction…………………………………………………………………………………… 1 1.1 Environmental Organization Chart……………………………………………………………. 2 1.2 Environmental Responsibilities……………………………………………………………….. 3 1.2.1 Engineer (Oriental Consultants Company Limited)…………………………………………………... 3 1.2.2 Main Contractor(Taisei Corporation)…………………………………………………………. 3 1.2.3 Environmental Manager and Deputy Environment Manager ………………………………… 3 1.2.4 Sub contractors………………………………………………………………………………… 4 1.3 Major Construction Activities…………………………………………………………………. 6 1.4 Locations of Construction Activities…………………………………………………………... 7 Chapter 2 EMAP Implementation …………………………………………………………………… 12 2.1 Introduction ……………………………………………………………………………………. 12 2.2 Pre Construction Stage………………………………………………………………………… 12 2.3 Construction Phase…………………………………………………………………………….. 13 2.3.1 Controlling of Social impacts due to the influx of construction workers to local areas……….. 14 2.3.2 Controlling of Hydrological impacts…………………………………………………………... 14 2.3.3 Controlling of Impact on water quality/quantity………………………………………………. 16 2.3.4 Controlling of Impact on air quality /dust……………………………………………………... 16 2.3.5 Controlling of Noise/ Vibration………………………………………………………………... 17 2.3.6 Controlling of Soil erosion or surface run-off ………………………………………………… 18 2.3.7 Safe Handling and storage of hazardous material……………………………………………... 19 2.3.8 Spoil and construction waste disposal methods………………………………………………... 20 2.3.9 Operation of work camps and provision of sanitary facilities for the workers………………... 21 2.3.10 Controlling of Loss of vegetation covers of the areas for temporary yard…………………….. 22 2.3.11 Controlling of Impacts on wetlands……………………………………………………………. 22 2.3.12 Controlling of Visual and aesthetic impact…………………………………………………..... 23 2.3.13 Controlling of Impacts from traffic……………………………………………………………. 23 2.3.14 Controlling of Social impacts………………………………………………………………….. 24 2.3.15 Safety and precaution measures taken for the workers and public…………………………….. 31 2.3.16 Controlling of impacts on transportation of haulage material…………………………………. 32 2.4 Implementation of EMAP on Prescribed activities carried out Beyond Project Area………... 33 2.4.1 Batching Plants………………………………………………………………………………… 33 2.4.2 Asphalt Plants………………………………………………………………………………….. 35 2.4.3 Gravel Barrow Pits…………………………………………………………………………….. 35 2.4.4 Disposal Dumping Yards………………………………………………………………………. 36 2.4.5 Crusher Plants………………………………………………………………………………….. 36 Chapter 3 Environmental Management Monitoring…………………………………………………… 37 3.1 Monitoring Requirements as per the contract………………………………………………….. 37 3.1.1 Water Quality…………………………………………………………………………………... 37 ii Implementation of Environmental Management Action Plan for the Outer Circular Highway to the City of Colombo (Project Phase II) OCH, Northern Section 1from Kadawatha to Kaduwela 3.1.2 Air Quality……………………………………………………………………………………... 37 3.1.3 Noise………………………………………………………………………………………….... 38 3.1.4 Vibration……………………………………………………………………………………….. 39 3.1.5 Well water monitoring…………………………………………………………………………. 39 3.1.6 Rainfall………………………………………………………………………………………… 40 3.1.7 Flood / Water level……………………………………………………………………………. 40 3.2 Routine Inspections……………………………………………………………………………. 41 3.3 Joint Inspections……………………………………………………………………………….. 41 Chapter 4 Reporting Mechanism for Environmental Management and Monitoring Activities...................................................................................................................................... 42 iii Implementation of Environmental Management Action Plan for the Outer Circular Highway to the City of Colombo (Project Phase II) OCH, Northern Section 1from Kadawatha to Kaduwela LIST OF ANNEXTURES A. Public complain register B. License and clearances obtained for project activities C. Details of compensation for house damages D. List of affected parties who temporary evacuated E. List of affected parties who compensated for well water depletion F. Details of flood damage compensation G. List of miscellaneous compensation H. Final status of disposal sites I. SLLRDC clearance for removing pilot road J. Noise and vibration analysis K. Public road rehabilitation, Frontage/access road provision iv Implementation of Environmental Management Action Plan for the Outer Circular Highway to the City of Colombo (Project Phase II) OCH, Northern Section 1from Kadawatha to Kaduwela ABBREVIATIONS CEA Central Environmental Authority EIA Environment Impact Assessment EMAP Environment Management Action Plan EMMP Environment Management Monitoring Plan EMP Environment Management Plan GSMB TS Geological Survey & Mines Bureau Technical Services OCH Outer Circular Highway ROW Right of Way RDA Road Development Authority SLLRDC Sri Lanka Land Reclamation and Development Corporation SIEI Special Internal Environmental Inspection ESD Environment and safety division v Implementation of Environmental Management Action Plan for the Outer Circular Highway to the City of Colombo (Project Phase II) OCH, Northern Section 1from Kadawatha to Kaduwela Chapter 1 Introduction Outer Circular Highway (OCH) was originally planned by Road Development Authority (RDA) with the objectives to cater for the growing need in the transport sector in Sri Lanka. This was proposed as a connecting ring road to the existing trunk roads and other proposed highways. In addition to easing the traffic congestion in Colombo by reducing through traffic, OCH was expected to promote regional development leading to a balanced urban economy. The Phase II of the Outer Circular Highway Project (Phase II – OCHP) extending a total of 8.9 km from Kadawatha (Ch 8 + 648) to Kaduwela (Ch 17 + 500), funded by Japan International Corporation Agency (JICA) was to be completed in 36 months. Phase II – OCHP was constructed by Taisei Corporation, Japan – the contractor. The project construction was commenced on the 9th January 2012 and it was open for public on 5th August 2015. Proposed ROW is given in Fig.1. Environment Management Plan (EMP) was developed by Road Development Authority considering the anticipated impacts of the construction project. EMP gave a strong base for EMAP preparation. According to the contract agreement, it was essential to fulfill the requirements of EMP. Since it was a contractual agreement with the employer and the contractor, the engineer instructed to prepare a mechanism for implementation of the EMP. EMAP was prepared by Contractor in order to implement the EMP of Phase II – OCHP. The Environment Management Action Plan was the document which describes possible environmental and social impact and proposal to avoid and minimize those impacts during the construction of Greater Colombo Urban Transport Development Project Outer Circular Highway to the City of Colombo (OCH) Northern Section from Kadawatha to Kaduwela in Sri lanka. The EMAP based on the Environmental Management Plan, Environmental Management Monitoring Plan and the Technical Specifications which was provided by the employer according to the EIA studies. Taisei Corporation implemented counter measures in order to prevent Environmental and social impacts under Engineer’s supervision. 1 Implementation of Environmental Management Action Plan for the Outer Circular Highway to the City of Colombo (Project Phase II) OCH, Northern Section 1from Kadawatha to Kaduwela 1.1 Environmental Organization Chart The following officers were responsible for the implementation of EMAP during the construction period. Project Manager Mr Akira Tanabe Env Manager Mr. W.A.I.A. Rodrigo Deputy Env Manager Ms.K.H.Jayasinghe Env Specialist Env Specialist Mr.D.Meegaswatta Mr. S.N.Rajapaksha ENV & Social Technical Team 1 Technical Team 2 Officer GSMB Mr Rohan Liyanage ITI Env. Assistant (Documentation) Ms.K.L.D.K.Maduwanthi Env Assistant Mr Pallegedara Data Controller Ms.F.G.Abewickrame Supervisor Mr.John Antony 2 Implementation of Environmental Management Action Plan for the Outer Circular Highway to the City of Colombo (Project Phase II) OCH, Northern Section 1from Kadawatha to Kaduwela 1.2 Environmental Responsibilities 1.2.1 Engineer (Oriental Consultants Company Limited) Engineer on behalf of the employer was overseeing the monitoring of environmental issues of the project during the construction period in accordance with the contract. 1.2.2 Main Contractor(Taisei Corporation) The management of Taisei Corporation got the leadership to address the possible environmental issues and to control/minimize the adverse impacts, which arise due to particular anticipated environmental issues. Necessary management approaches were implemented by the Contractor in order to, Ensure that the correct mitigation measures were understood and fully accepted at each level of management, supervisory staff and all other employees. Ensure that the correct mitigation measures were implemented at each project activity as planned. Ensure that all subcontractors of the project follow the given instructions regarding the mitigation of adverse environmental impacts. 1.2.3 Environmental Manager and Deputy Environmental Manager Environment manager and Deputy Environment manager equally contributed for the implementation of EMAP throughout the project with fulfilling following responsibilities, in collaboration with the project manager. Identified