LANCO ANPARA POWER PVT. LTD PLOT No. 229, PHASE-I, UDYOG VIHAR, GURGAON-122016, HARYANA Ph: 0124 4691000-04, 2341625, Fax: 0124 2341627, 4691005 SUMMARY OF RAPID ENVIRONMENTAL IMPACT ASSESSMENT AND ENVIRONMENTAL MANAGEMENT PLAN FOR 2 x 600 MW COAL BASED LANCO ANPARA THERMAL POWER PLANT AT ANPARA VILLAGE, DISTRICT SONEBHADRA, UTTAR PRADESH JUNE, 2007 (ISSUE 01, REV.0) Prepared by: Estb. 1983 M I N M E C C ON S U L TANCY P V T. L TD. A- 1 2 1, P a r y av a r a n C o mp l e x, IG N O U R o a d, N e w D e l h i 1 10 0 3 0 Ph : 29 53 47 77, 29 53 22 36, 29 53 58 9 1 ; F a x: +9 1-11- 29 53 25 68 An ISO 9001:2000 E ma i l : mi n _ me c @ v s n l. c o m; W e b s i t e : http://www.minmec.co.in approved company
1.0 INTRODUCTION TO PROJECT This Summary of the Rapid Environmental Impact Assessment (REIA) and Environmental Management Plan (EMP) has been prepared for 2X600 MW Lanco Anpara Thermal Power Plant (TPS) to be set up at Anpara in District Sonebhadra, Uttar Pradesh by Lanco Anpara Power Pvt. Ltd. The location of the project is adjacent to the existing Anpara A & B thermal power plant of Uttar Pradesh Rajya Vidyut Utpadan Nigam Limited (UPRVNL) and is situated on the bank of Rihand Reservoir, which is also the source of water supply to the TPS. The land available for the project is 255 acres (103.24 hectare) for the plant and 20 acres (8.1 hectare) for the colony. The estimated cost of the project is around 4200 Crores. 2.0 PROJECT DESCRIPTION 2.1 Project Site The proposed plant will be located in village Anapra, in District Sonebhadra, Uttar Pradesh. The 255 acres of land includes 9 acres of forest land required for the plant has been leased to Lanco Anpara Power Pvt. Ltd. by Forest Department. The colony for Lanco Anpara Thermal Power Plant will be located in 20 acres land adjacent to Anpara- A&B township, at a distance of about 2 km from the plant site which has also been leased from UPRVUNL. 2.2 Process Description In a coal based thermal power station, the heat of combustion is first converted into mechanical and then to electrical energy. The main units of a thermal power plant are steam generator, steam turbine and electrical generator. Steam generator is a combination of heating surfaces in which super-heated steam is generated at high pressure and temperature by utilizing the heat liberated from combustion of fuel. The steam so generated is fed into a turbine, which converts the thermal energy of steam into mechanical energy and drives the generator for producing electricity. Exhaust steam from the turbine is condensed by means of a condenser. Thus, the water evaporated in the boiler is conserved in a closed cycle. To meet the minor water shortfall of the cycle, a small quantity of demineralised water is continuously fed into the condenser hotwell. 2.3 Facility Proposed It is proposed to install 2 X 600 MW power station using coal as primary fuel. Major equipment of the power plant are as follows: 1) steam generators and accessories 2) steam turbine generator and auxiliaries 3) ash handling system 4) chimney 5) condenser cooling water system 6) water reservoir 7) water treatment system 8) coal handling and transportation 2.4 Raw material quantity and quality Coal is the primary fuel and will be obtained from the Khadia Coal Mine Expansion. Coal consumption for design coal at 100%PLF shall be about 18000 TPD. Coal consumption for worst coal at 100% PLF shall be about 21000 TPD. Annual coal consumption at 80% PLF for design coal shall be about 5.25 million tonnes. The total moisture in the coal is 12%, ash 34.1%, volatile matter 24.6%, fixed carbon 29.3% and gross calorific value 3800 Kcal/kg. Summary of REIA/EMP of 2X600 MW Lanco Anpara Thermal Power Plant at Anpara, UP 1
2.5 Fire Protection System An elaborate fire protection arrangement is planned for this plant. A multitude of system will be provided to combat various types of fire in the different areas of plant. 2.6 Ventilation and Air Conditioning System In order to maintain suitable space conditions as required for personnel comfort as well as equipment protection, properly designed ventilation and air conditioning system shall be provided in various areas of the plant. All air-conditioned space shall be designed for 22 C ± 1% and maximum 60% RH indoor condition. 2.7 Manpower The total permanent manpower required at plant during operation stage will be about 300 persons. The number of working days in a year will be 365 days with three-shift operation of 8 hours each. 2.8 Water requirement The water consumption of the plant will be 5100 m 3 /hr. Since recirculation and reuse of water is proposed, the total fresh water consumption can be reduced from 5100m 3 /hr after the operation of the treatment and recirculation system. The source of water shall be the Rihand or Gobind Ballabh Pant Sagar reservoir. The permission for the withdrawal of the same had been taken by UPRVUNL from Central Water Commission (CWC) 2.9 Details Of Common Facilities To Be Used For Lanco Anpara The Lanco Anpara project shall be sharing the facilities already developed for the adjacent Anpara A and B thermal power plants belonging to UPRVUNL. They include Merry-Go-Round System (MGR), Railway Siding, Ash pond and ash facilities, Raw Water Intake Channel and Auxiliary steam for start up and operating period. 3.0 PRESENT ENVIRONMENT SCENARIO The project area is referred to as core zone while the area within 10 km radius is called the buffer zone. Together the two comprise the study area. 3.1 Topography, drainage and climate The study area in general is uneven and ground is undulating. The north eastern quadrant is full of weathered rocks in the shape of small hillocks. The elevation within the study area ranges 275 m a.m.s.l around the Anpara Thermal Power Plant to 571 m a.m.s.l near Aunri in the west of the plant. The general gradient is south easterly i.e. towards Rihand Reservoir, also known as, Govind Ballabhpant reservoir. The climate of this district is characterized by a hot dry summer and a bracing winter. 3.2 Monitored micro-meteorology Micro-meteorological survey was undertaken during March to May 2007. The temperature varied between 14.50 to 46.40 C, RH between 20.0 to 97.0% and wind speed between 0 to 18.0 kmph. Predominant wind direction is from NE (23.32%). 3.3 Ambient Air quality and noise levels The ambient air quality was studied for ten locations. It is found that the suspended particulate matter (SPM) or air borne dust is found to vary from 47 µg/m 3 to maximum of 280 µg/m 3 while respirable particulate matter (RSPM) varied from 18 µg/m 3 to maximum of 88 µg/m 3. The concentration of NOx and SO 2 are found to be low (below 22.0 and 15.9 µg/m 3 respectively). The noise levels recorded within the study area are in the range of 43.0 to 53.0 db(a) during day and between 36.60 to 40.30 db(a) during night. Summary of REIA/EMP of 2X600 MW Lanco Anpara Thermal Power Plant at Anpara, UP 2
3.4 Water Resources and quality The study area represents hilly and rolling topography and is drained by large number of streams which are seasonal. All the streams drain out the storm water during monsoon season, into the Govind Ballabh Pant reservoir. The reservoir covers 468 sq. m. and has a gross storage capacity of 10.6 X 10 9 m 3. The ground water table varies from less than 10 m below ground level (bgl) near the reservoir to as much as 27.5 m bgl in the hills. The level of ground water development is 18.5%. Quality of ground water in general is good and suitable for domestic and irrigation purposes which was confirmed by water quality sampling and testing. 3.5 Land use pattern and Soil Quality In the study area, more than 33.84% of the land not available for cultivation. About 11.83% of land in the study area is under cultivation, most of which is unirrigated Forests cover 51.67% of the study area. The soil sample was found to be sandy in nature with poor organic content, neutral and having low conductivity. 3.6 Ecology In the buffer zone, the reserve/protected/ village forest cover is 23117.54 Ha. i.e. about 51.67% of the total area. The forests in the study area are mainly Sal forests. There are 9 protected forests in the study area. The flora in the buffer zone consists of mostly Khair, Riunja, Kalmi, Bel, Safed Siras, Siras, and neem, small trees are Kikar, Amaltas, Bhiimla, Tilwan and Ber, herbs and shrubs include Gekharu, Bireta, Tulsi and Pawar etc. Climbers, grasses and bamboos also present in the buffer zone. The buffer zone has mammals like Langur or Hanuman Monkey, Rhesus Macaque, Short-Nosed Fruit Bat, Sloth Bear, Leopard or Panther, Indian Fox, Nilgai or Blue Bull, Indian Wild Boar (Wild Pig), Muntjac or Barking Deer, etc. The Schedule I animals are sloth bear, leopard, honey badger and peafowl. 3.7 Socio-economic Conditions About 83.30 % of the population in the area are categorised as non workers, while literacy is only about 58.02%. The composition of SC and ST in the study area is 21.05% and 5.92%, respectively. The major source of income of the local population is nonagricultural. 3.8 Industries and other places of archaeological/historical/tourist/ religious importance There are several thermal power stations within 25 kms such as Singrauli, Vindhyachal, Rihand, Renusagar, Anpara A & B. There are plants of Hindalco, Kanoria and Hi Tech carbon in Renukut while several mines are also operational. There are no places of historical/tourist/religious or archaeological importance in either core zone or study area. There are local places of worship at some villages. 4.0 ENVIRONMENTAL IMPACT ASSESSMENT AND MITIGATION MEASURES 4.1 Impact on Climate and mitigation During construction no effect on climate and meteorology of area is expected, except contribution of CO 2 to the atmosphere on consumption of fossil fuels such as diesel on operation of heavy construction machinery, etc. During operation, the thermal pollution will be restricted to an atmospheric zone higher than 250 m from ground level and not cause any impact on the surrounding ground dwelling biota. Moreover, the climate is controlled by the pressure depression in the Bay of Bengal and this project cannot affect any large scale climatic changes. Hence no, mitigation measures are being taken. Summary of REIA/EMP of 2X600 MW Lanco Anpara Thermal Power Plant at Anpara, UP 3
4.2 Impact on Air Quality and mitigation During construction phase, large quantities of sand, cement, bricks, stone, steel, etc. will be transported and handled at the site creating dust in the air. During operation phase, the air pollution shall be due to emission from the stack. Ground level concentration (GLC) predictions have been performed for the emission source in three predominant directions. The results of modelled incremental GLC s due to stack have been calculated based on hourly average wind speed in each direction. The maximum values have been observed at 5 km from the stack in ENE direction. The anticipated 24 hours average GLC s will be maximum 0.30 µg/m 3 SPM, 9.94 µg/m 3 SO 2 and 7.45 µg/m 3 NOx at a distance of 5 km from the stack towards the most second predominant wind direction (towards ESE with 8.20% of the time). During operation, various mitigation measures shall be taken which include installation of an electrostatic precipitator with an efficiency of 99.8%, dispersal of pollutants through 275 m high stack, water spraying provided in coal yard to suppress dust at suitable location including transfer points, loading and unloading points and installation of continuous type particulate and gases (SO 2, NOx and CO) monitors (online analysers). 4.3 Land Degradation and management The total land area requirement is 275 acres for installation of power plant including the land requirement for colony. Ash will be disposed in the existing ash pond. The construction activities will contribute to the deterioration of environment but this will be for limited time and reversible. During operation phase, a green belt will be developed. This green belt will help in preventing fugitive dust from spreading beyond the plant boundary. 4.4 Impact on Water Resources and mitigation Water requirement will be for construction purposes as well as for the consumption of labourers will be met from surface and ground water. Since there is no withdrawal of ground water during operation phase for plant and colony, there shall not be any long term impact on ground water. The estimated consumptive water requirement is 5100 m3/hr without ash water recycling and 4300 m3/hr with ash water recycling. This shall be sourced from the Rihand reservoir. The waste water generated in the colony shall be treated through a sewage treatment plant while the waste water generated in the plant shall be treated through an effluent treatment plant. The waste water after treatment shall be reutilised in green belt watering and similar activities. The maximum quantity of effluent expected to be dischrged is 180 CuM/H, which will be further reduced based on the usage for Green belt. 4.5 Impact on Noise Level and Traffic Noise levels in the vicinity of construction activity will increase but will only be for a limited period. During construction phase, increase in traffic due to movement of truck shall be there. During operation, noise level will increase, to a limited extent. As noise-generating equipment will be placed within enclosures, their impact on ambient noise level will be negligible. The impact on traffic shall be low because the transportation of coal shall be done through merry-go-round railway system. In order to maintain low noise levels, there shall be green belt, regular maintenance, air silencers on machines, equipments and vehicles. Workers shall be protected against noise and their exposure controlled as per OSHA and CPCB standards 4.6 Ecological impacts and management Before construction, vegetation will be cleared for accommodating the different facilities. There are no wildlife sanctuaries or fragile ecosystems within the study area. Green belt shall be planted over 20 ha. Treated sewage, in adequate quantity and suitable quality, will be available for survival and healthy growth of plantation. Trees, grasses, flowers and Summary of REIA/EMP of 2X600 MW Lanco Anpara Thermal Power Plant at Anpara, UP 4
vegetables developed and grown in the open spaces as mentioned above will provide food and habitat for fauna. Thus, the project will have positive impact on the ecology. 4.7 Impact due to Solid Waste and management The ash content of coal fuel will be 32.4 37.4%. About 17% of ash would be collected as bottom and coarse ash and the balance 83% would be collected as fly ash.this will be largest source of solid waste. Hence, at 90% PLF, 1.67 MTPA of fly ash and 0.35 MTPA of bottom ash shall get generated. Fly ash shall be utilized in dry form for commercial uses such as bricks & cement manufacturing, construction activities and land filling. Remaining ash shall be dumped in existing ash pond. An ash disposal scheme has been worked out as per the MoEF guidelines. 4.8 Impact on Socio-Economic Conditions During construction phase there will be direct and indirect employment generation to local people, therefore, having a positive impact. During operation 300 persons will get employment. There is no plan for displacement of the villagers. Social welfare measures shall be undertaken in the surrounding villages by the LANCO Institute of General Humanitatrian Trust (LIGHT). 4.9 Impact on topography and drainage and their management The elevation of the plot is approximately 275 m a.m.s.l. It does not require any filling or cutting. Hence no impact shall be there except the permanent building of structures. The nearest nala is the Marghatiya which is passing through the north east corner of the plot. The nala shall remain undisturbed and for installing an overhead power line above it, the support for shall be given by installing towers on either bank if the nala. Storm water drainage will be laid out to collect the rain water and drain it to Rihand reservoir. 5.0 ANALYSIS OF ALTERNATIVES The location for the power plant was selected by UPRVUNL mainly based on availability of coal, which shall be from the Singrauli coal field s Khadia mine expansion. The second important aspect is the availability of water from Rihand reservoir. The third important aspect is the land is next to Anpara A & B resulting in usage of common facilities such as intake channel, ash pond, coal transportation system, transmission system etc. which had been designed keeping in view the demand from Lanco Anpara TPP. Based on the fuel quality and to adopt reliable and proven technology, sub-critical two pass boiler with tandem compound single reheat turbine generator has been adopted. For conservation of water, closed cycle cooling water system with induced draft cooling tower has been adopted. 6.0 ENVIRONMENTAL CONTROL AND MONITORING ORGANISATION A maintenance team has been proposed to take care of pollution monitoring aspects and implementation of control measures. A schedule has been spelt out in EIA for periodical monitoring. The total capital investment on environmental improvement work is envisaged as Rs 31058 lakhs which is 7.39% of the estimated cost of the project (Rs 420000 lakhs). The cost of existing ash pond common with Anpara A&B TPP is not included in the above cost estimate. The recurring expenditure estimated during the power generation is Rs. 6443.09 lakhs/year. Summary of REIA/EMP of 2X600 MW Lanco Anpara Thermal Power Plant at Anpara, UP 5