Executive Summary
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EIA STUDY for 2x600MW Coal Based Thermal Power Plant at Anuppur, Madhya Pradesh EXECUTIVE Client: Moser Baer Power & Infrastructures Ltd. SUMMARY EEXXEECCUUTTIIVVEE SSUUMMMMAARRYY INTRODUCTION Moser Baer Power & Infrastructures Ltd. (MBPIL) proposes to establish a 1200 MW (2 x 600 MW) coal fired thermal power plant in Anuppur district, Madhya Pradesh. MBPIL has appointed GIS Enabled Environment & Neo-graphic Centre (GreenC) to carry out Environmental Impact Assessment (EIA) study for preparation of Environmental Management Plan (EMP) for the proposed 1200 MW coal fired Thermal Power Plant (TPP). Location: The main plant site is located adjacent to villages of Murra, Guwari, Belia and Jaithari village. The site is near the Jaithari - Chandpur road. The site can be also approached from Anuppur- Bilaspur Link Road originating near Belia village. The project site is located at a distance of about 2 km from Jaithari railway station on the Katni - Bilaspur Broad Gauge (BG) section of South East Central Railway (main line). Chhulha Railway Station is also located 3.5 km away from the site. PROJECT DESCRIPTION Land: Total land requirement for the proposed 2X600MW Thermal Power Plant is 996 acres. This land has been acquired in the villages of Murra, Guwari, Belia and Jaithari. The land for the project has been already optimized. Coordinates : The coordinates of the plant site is 23°4'05.16"N and 81°47'28.68" E The altitude of the region is between 490-510 m above Mean Sea Level (MSL). Water: The source of water for the plant is Son River, which is a perennial river. It is planned that a barrage would be built over the river to cater to the plant. Provision has been kept for storage of 30 day make up water requirement in plant area to take care of the lean period. The estimated annual requirement of makeup water for the 1200 MW capacity power project would be about 48MCM. Coal: Coal requirement for the proposed plant, is estimated at 6.6 MTPA considering average GCV of 3280 kcal/kg at 85% PLF. SECL Coalfield has been considered as source of coal. Coal is proposed to be transported through Indian Railways network from SECL source to Jaithari Railway Station (RS) and then to site through dedicated railway siding (to be constructed). Raw Water System: The Raw Water System shall be designed to supply cooling water makeup and other consumptive water requirement like service water, potable water etc. for the proposed plant. Raw water shall be pumped from the barrage pond to the raw water reservoir located in the plant boundary. De-silting basin will be provided if required. It is envisaged to provide three (2W+1S)) numbers of raw water intake pumps in the raw water pump house. Coal Handling System: It is proposed to provide one common coal handling plant of 1600 MTPH rated capacity for 2 X 600 MW with parallel double stream belt conveyor (one working and one stand by). The capacity of tripper conveyor shall be 1300TPH. The coal handling plant is proposed to operate for 15 hours (two shifts) and the third shift (9 hours) will be used for maintenance. Coal received in BOX-N wagons will be unloaded in underground RCC GIS Enabled Environment and Neo-Graphic Centre 1 EIA STUDY for 2x600MW Coal Based Thermal Power Plant at Anuppur, Madhya Pradesh EXECUTIVE Client: Moser Baer Power & Infrastructures Ltd. SUMMARY hoppers by wagon tipplers. Coal received in BOBR wagons will be unloaded at a track hopper terminal. Ash Handling System: The quantum of ash generation would depend on the plant load factor and the quality of coal being fed. Bottom ash shall be collected in water impounded, refractory lined W-type hopper having four (4) outlets. Each outlet shall be provided with a hydraulically operated gate, a clinker grinder and a jet pump. The bottom ash hopper shall have capacity to store about 8 hours of bottom ash collection. The fly ash handling system shall be of vacuum-cum-pressure type. Fly ash shall be conveyed by vacuum type system up to intermediate silo and there after pressure type system up to the main silo. Steam Generator: The Steam Generator shall be drum type sub critical water tube, pulverized coal fired, single re-heat, balanced draft, outdoor type. The configuration/ arrangement of the steam generator will be as per the standard proven design of the manufacturer. Steam Generator design shall be suitable for variable pressure operation from 30% to 100% BMCR.The steam generator would be designed for firing 100% indigenous coal. Each steam-generating unit would be provided with electro-static precipitators. Each precipitator will have two parallel gas paths, any of which can be isolated for maintenance when required, keeping the other path in operation. Each path will have fields in series for collection of fly ash. Stack Characteristics: One bi-flue RCC Chimney of height 275m is planned. The flue gas emission point shall be at the top of the chimney. Internal and external platforms shall be of structural steel construction and shall be supported from the windshield. The floors/walkways shall be of chequered plate construction. The grade level slab shall be of reinforced concrete with a metallic hardener floor finish. Necessary protection and access systems like large roll up door, access door, line hatches, test ports, water drainage system, etc. shall be provided. Project Schedule: The plant is envisaged to be commissioned (COD) in 36 months from the date of award of main plant equipment contract. BASELINE ENVIRONMENT STATUS Study Area: The study area is 10 km radial distance from center of proposed plant site. All the monitoring is done in various locations within the study area during the period of October- December 2008. Baseline Study: The findings of the baseline environmental status on land (topography, geology, soil quality, land use pattern), meteorology (Temperature, Relative Humidity, rainfall, wind speed, wind rose), air (ambient air quality- SPM, RSPM, SO 2, NO X. Ozone), water (surface water, groundwater), noise level, ecological environment (flora & fauna), socio economic conditions (demographic profile and households condition) were presented and interpreted with reference to environmental standards. Topography: The proposed project site has average altitude within 490 – 510 m above MSL. In the southern and central part of the site, the land is within 500 - 510 m. The slope of the site varies from NW to SE. Overall there will be no requirements for cutting and filling. Only leveling of land will be required. Soil: The soil cover of the study was found of red to brownish in colour. The texture of the soil in the study area was found predominantly clay in nature. The pH of the soil samples was found to be neutral to alkaline in nature. Organic carbon content of the soil samples was found to be in the range of 0.19% to 0.78%, which indicates that fertility status is moderate GIS Enabled Environment and Neo-Graphic Centre 2 EIA STUDY for 2x600MW Coal Based Thermal Power Plant at Anuppur, Madhya Pradesh EXECUTIVE Client: Moser Baer Power & Infrastructures Ltd. SUMMARY Land-Use of Study Area: The scrub and open grasses land are predominant in the 10-km radius study area. These areas consist of 86.53 sq. km, which is of 27.53% of the total area. Forests are present in the northeast and southwestern part of the study area and these covers about 21.04% of the study area. There are 47 villages in the Project Influence area. Micro-meteorology: The maximum and minimum dry bulb temperatures recorded during the study period were 32.0°C and 7.6°C respectively, while the average temperature was 22.2°C. The mean humidity was recorded at 64.7% while maximum and minimum humidity were observed as 86.0% and 46.0% respectively. The maximum rainfall i.e. 3.1 mm was observed in December. However, no rainfall was observed during the months of October and November 2008. The average wind velocity was observed to be 1.3 m/s and the predominant direction was North and North-West. Ambient Air Quality: Ambient air quality at ten different locations was monitored during the 3 study period. It was noted that P 98 value of SPM varied between 138.5 and 157.0µg/m . The 24 hrs RSPM level of ambient air in all the stations during monitoring period was recorded in between 50.5 to 57.5µg/m 3 as against allowable value of 100µg/m 3 stipulated in National Ambient Air Quality Standards (NAAQS) for residential cum rural area. Similarly values of 3 3 SO 2 and NO X ranging from 9.1 to 10.8µg/m and 9.1 to 10.3µg/m respectively are well within the stipulated levels of NAAQS. The range of ozone varied from 7.1 to 9.8µg/m 3. On the whole, the prevailing ambient air quality within the study area is well within the NAAQS standard. Noise Level: The ambient noise levels monitored at different locations indicate that they were within the standards. The L eq were recorded between 41 to 44dB (A) during daytime and 34 to 38dB (A) during nighttime. Area Drainage: The general drainage of the area is from south-east to the north-west. All first and second order seasonal streams join the Tipan or the Son River within the study area. In the core zone area there is a seasonal nala flowing in the southern part of the core zone. The nala finally drains into Tipan River near its confluence with Son. Water Quality: Water samples have been collected from 10 stations (5 for groundwater and 5 for surface water).