Environmental Report 49 Mw Luat Hydro Power Project
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ENVIRONMENTAL REPORT 49 MW LUAT HYDRO POWER PROJECT Submitted To: Environmental Protection Agency Azad Jammu & Kashmir Submitted By: Neelum Green Energy (Pvt.) Ltd. Office # 7, MB City Mall, I‐8 Markaz, Islamabad +92 51 4861790 Consultant: Nasir Absar Consulting (Pvt.) Ltd. Office # 1, Second Floor, VIP Square I‐8 Markaz, Islamabad +92 51 4861323 EXECUTIVE SUMMARY 1 INTRODUCTION The proposed 49 MW Luat Hydropower Project “the Project” is identified in the lower 6-7 km stretch of Chutiari nullah, near Luat village, District Neelum, in the Azad State of Jammu and Kashmir. Chutiari nullah is a right bank tributary of Neelum River in the tehsils Athmuqam, Neelum district with its confluence about 95 km north-west of Muzaffarabad city. The Project layout has been planned on the right bank of Chutiari nullah with diversion weir intake, connecting channel, sandtrap, low pressure headrace tunnel, surge shaft, pressure shaft, pressure tunnel, underground powerhouse and a free flow tailrace tunnel to discharge the outflows back into the Nullah. An access tunnel is provided for handling of plant and equipment transportation to the powerhouse, the access tunnel is just over the tailrace tunnel. This site was first identified by a French Firm (CFG) in 1986. During the preliminary site identification studies the estimated installed capacity of the Project was estimated to be 25 MW. In November 2008, Hydro Electric Board (HEB) of the Azad State of Jammu and Kashmir (AJ&K) signed a Consultancy Agreement with M/s Fida Hussain Chaudhary - FHC Consulting Engineers, Lahore, in association with M/s Scott Wilson Limited of United Kingdom and M/s Electra Consultants, Peshawar for preparation of feasibility study reports. Now, the Project is given in the private sector and LOS was issued for development of the Project by Private Power Cell (PPC), Hydro Electric Board (HEB) to NEELUM GREEN ENERGY (PVT.) LTD. The Sponsors has now engaged NASIR ABSAR CONSULTING (PVT.) LTD. for the Development of the project. This report presents a description of the environmental aspects of the project area, including Nullah catchment and the areas to be occupied by the project components and their environs. 1.1 PURPOSE AND SCOPE OF THE IEE The purpose of this Initial Environmental Examination (IEE) study is to evaluate the proposed project activities, which are: construction of a hydropower plant of capacity 49 MW which comprises of a diversion weir, approach channel, desanders, power tunnel, forebay, penstock, power house, and tailrace against AJ&K-EPA standards and against international environmental guidelines. This IEE covers assessment of physical, biological and socioeconomic impacts of site evaluation, construction and post development phases of the project. To suggests the applicable remedial measures to minimize any damage to any environmental component. Further, to describe the detail approach and methodology to be adopted for fulfillment of the purpose and scope of the IEE. i 1.2 PROJECT DESCRIPTION Chutiari Nullah meanders down from its source towards its confluence with Neelum River with an average slope of over 10%. The Nullah valley is narrow and the flow is mostly through a V - shaped gorge. The entire project layout and its structures i.e. intake, approach channel, flushing / de-sanding basin headrace tunnel, forbay, steel penstock, power house and tail race are to be located within Tehsil Athmuqam. The Project is located about 5 km from the Keran village and 100 kms northwest of Muzaffarabad and. the entire project layout falls within Tehsil Athmuqam, District Neelum in Azad Jammu and Kashmir. The weir site lies just downstream of a right bank confluence of a small Nullah “Kandora Nullah” with Chutiari Nullah. The power house is just before the confluence of the Chutiari Nullah with the Neelum River. The location of the Project Area is shown in the below Figures ii The Project area is accessible from Muzaffarabad by metal road up to the power house area, a jeep-able road leads to the weir site from the main road to the Luat Bala village, this track has been constructed on steep slopes and it moves to higher elevation to enter into Luat Bala valley. This road, from main Neelum valley road, becomes quite inaccessible during winter months due to snowfall and it also needs to be widened. The road crosses Chutiari Nullah, at the Luat Bala village, about 5 km from its confluence with the Neelum River and few kilometer downstream from the weir site. The travel time, on a Small Passenger Vehicles, from Muzaffarabad to the power house is about three hour. Furthe access time to weir site is about one hour. The total Catchment of Chutiari Nullah upto its confluence with Neelum river is 121 km2, whereas the catchment area of the project is 102 km2. The Consultants' findings are presented in the reviewed / upgraded study report. Salient technical, physical and financial features of the project are summarized for a quick reference in the following table: General About 95 km from Muzaffarabad city, On right bank of Chutiari Nullah which is a Location right tributary of Neelum River Hydrology Catchment Area 102 km2 Mean Annual Flow 6.90 m3/s Design Discharge 9.6 m3/s Design Flood (Tr = 1000) 242m3/s Topography Gross Head 618 m Net Head 606.5 m Civil Structures Diversion Weir Type of Intake Weir with Lateral Intake Height above Nullah Bed 6.8 m Length of the Crest 30 m Crest Elevation 2154.0 m Type of Stilling Basin Roller Bucket Connecting Channel Cross Section (Internal) 2.8 m x 2.3 m, RCC Velocity 2.3 m/s Length of the Channel 45 m Sand Trap Number of Chambers 2 Clear Width 10 m Length of Chamber 40 m iii Headrace Tunnel Cross Section (Internal) 2.8 m x 3.1 m Type of Section Horse Shoe Type Length of the Tunnel 3915 m Lining Partially Lined Surge Tank Diameter 6 m Depth 38 m Pressure Shaft And Pressure Tunnel Diameter 2.4 m Length 907 m Power House Type Cavern Length 57.6 m Width 20.5 m Access Tunnel 340 m Tailrace Tunnel 340 m ELECTRO-MECHANICAL Pelton Wheel with Horizontal Type of Turbine Axis, 600 rpm No. of Units Four (04) Installed Capacity 49 MW Annual Energy Generated 214.13 GWh Firm Power (95% of time) 5.1 MW Plant Factor 49.9 % Generation Voltage 11 kV Voltage of Dispatch 132 kV CONSTRUCTION PERIOD Preliminary Works One and Half (1.5) Year Construction of Civil and E&M Works Period Four (4) Year 1.3 ENVIRONMENTALLY RELEVANT CONSTRUCTION MILESTONE • Start of land acquisition proceedings January 2016 • Completion of land Acquisition process September 2016 • Houses Acquisition September 2016 • Start of Compensation Process October 2016 • Start of Construction Process April 2017 • Completion of project April 2021 iv 1.4 RESERVOIR SEDIMENTATION AND MANAGEMENT The sediment load at the weir site has been estimated at 0.079 M ST. It carries bottom load of pebbles, boulders and suspended load of sand, silt and clay. Sediment flushing will take place during monsoon. 2 STATUTORY REQUIREMENTS Pakistan responded to its environmental concerns by introducing laws, establishing environmental protection institutions and developing human resources and technical capability through local resources and foreign assistance. This section describes the policy, legal and administrative framework as well as institutional set up relevant to environmental and social assessment. The Environmental and social guidelines from the national agencies as well as international donors and other organizations, have also been discussed. Government of Pakistan Environmental Laws are applicable throughout the Country. The same law was promulgated on 11 October 2000 by Azad Government of Jammu and Kashmir “AJ&K”. Following laws, related to environment are applicable in Pakistan and AJ&K. i. Pakistan Environmental Protection Act -1997 / AJ&K Environmental Protection Act 2000 ii. Land Acquisition Act 1894 iii. Draft National Resettlement Policy 2002 iv. Explosive Act 1894 v. AJ&K Local Government Act 1997 The report has been prepared along the guidelines established by these laws. Pakistan Environmental Protection Act -1997, later adopted and promulgated on 11 October 2000 by Azad Government of Jammu and Kashmir as AJ&K Environmental Protection Act 2000, lays down requirements for Initial Environmental Examination (IEE) and Environmental Impact Assessment (EIA), it says that a Hydroelectric power generation less than 50 MW falls in Schedule I section B, which says that proponent of the Project shall file an IEE to the Agency. The Federal EPA has delegated responsibility to the Provincial EPAs, in this case to EPA AJ&K for permission and/or approval. 3 DESCRIPTION OF ENVIRONMENT This includes physical environment (geography, climatic pattern, geology, seismicity, hydrology and sedimentation, sediment load, water resources, population, ambient air quality, ambient noise and vibration), physical infrastructure (roads, airports, power, piped water etc), social infrastructure (health, education, etc), biological environment (agriculture, forestry, flora and fauna), and socio- economics (population, economy and livestock). 4 RESOURCE REQUIREMENT AND SOURCES OF ENVIRONMENTAL IMPACTS This section discusses the requirement of resources for different phases of the project. Different activities during the entire phases of the project likely to impact the physical, social and ecological environment are also discussed so as to further assess the environmental impacts of the proposed hydropower project. The site evaluation has been purposed at all stages of project development, i.e. v Pre-construction, Construction and Operation. An impact assessment method is developed which defines three levels of consequence (or severity) and likelihood (or probability of occurrence) - High, Medium or Low - of an impact. A standard risk based approach has been used in which; the significance of an impact is determined on the basis of the level of consequence and likelihood of the impact e.g.