VISON LABS Analytical Service & Environmental Consultants

Transcription

1 ENVIRONMENTAL STATEMENT FOR THE YEAR Sponsor SITAPURAM POWER LIMITED HYDERABAD Prepared By VISON LABS Analytical Service & Environmental Consultants Recognised by MoEF, GOI, Sr.no.2728 (E), ISO 9001:2008 H.No /37/A, 2 nd Floor, Sagar Hotel Building, Opp: R.T.A Office, Musaarambagh, Hyderabad. Tel Fax No : , Website: info@visonlabs.com & vison.labs@gmail.com September-2011

2 R E P O R T SITAPURAM POWER LIMITED, NALGONDA DISTRICT, ANDHRA PRADESH Environmental Statement For and on behalf of Vison Labs Approved by : T. Laxmikanth Reddy Signed : Position : Chief Executive Date : September, 2011 This Report has been prepared by Vison Labs with all reasonable skills, care and diligence within the terms of the contract with the client, incorporating our General Terms and Conditions of business and taking account of the resources devoted to it by agreement with the client. We disclaim any responsibility to the client and others in respect of any matters outside the scope of the above. This report is confidential to the client and we accept no responsibility of whatsoever nature to third parties to whom this report, or any part thereof, is made known, any such party relies on the report at their own risk. Vison Labs, Hyderabad. 2

3 Index of the Audit Report: The environmental statement report is based on data generated for twelve months during the period April 2010 to March The report consists of the following chapters: Chapter 1.0 Introduction This chapter provides background information, location of the plant, process being adopted and scope of the study. It also provides the information about climatic conditions in general in the project area. Chapter 2.0 Form V Ministry of Environment and Forest has made it mandatory to all industries which require authorization under Environmental (protection) act to submit an environment statement, for each financial year to the concerned state pollution control board. This chapter presents filled in form-v along with the supporting documents. Chapter 3.0 Pollution Audit This chapter presents detailed studies on Air Quality, Noise Quality in the 10 km radius taking the plant as a center. 3 sampling locations have been identified in 10 km radius in different directions and ambient air quality has been studied extensively for twelve months during the period April 2010 to March 2011, subsequently. The noise levels have been measured both in the plant for various equipments and at various human settlements within the 10 km radius. This chapter provides an insight of the existing pollution levels and provides the overall description of the existing environmental status during the operation of the plant. Chapter Safety and Energy Aspects This chapter provides information about various safety measures under taken by M/s. Sitapuram Power Limited. In view to safe guard manpower from the occupational health problems. This chapter also depicts the energy consumption for the captive power plant during Chapter 5.0 Auditor s Comments This chapter presents the exclusive comments on the existing pollution levels, measures taken for abatement of pollution and recurring Investment on operational maintenance of pollution control equipment. Vison Labs, Hyderabad. 3

4 Chapter 1.0 Introduction Vison Labs, Hyderabad. 4

5 1.0 INTRODUCTION: Industrial pollution in our country is on increase and is creating a high-risk environment. Various legislations viz. The water (Prevention & Control of Pollution) Act, 1974 and Environment (Protection) Act, 1986 have come into force and organization created to combat pollution. Gone are the days when industrialization meant profit making and environment was grossly neglected. It is being realized that industry and environment should go hand in hand so as to achieve sustainable development. Also over the years, awareness has brought in realization to consider environmental protection a bare necessity. Yet, the investments for such a protection are still considered a liability by many industrialists mainly due to lack of up-to-date scientific practices of environmental management. Consideration of environmental factors at par with production helps in minimizing material loses and also in reduction of liabilities in the long run. Environmental Audit is a technique being introduced for integrating the interest of the industry and the environment so that these could be mutually supportive. This technique is basically a part of industry s internal procedures in meeting their responsibilities towards better environment. Also the policy statement for abatement of pollution by the Govt. of India provides for submission of environmental statement by all concerned industries, which would subsequently evolve into an environmental audit. A notification under the Environment (Protection) Rules, 1986 has been issued on 1991, requiring industries to submit an environmental statement for the financial Year ending on March 31 in Form V to the concerned State Pollution Control Boards on or before September 30 every Year beginning 1993.The Department of Company Affairs also agreed to include this requirement as a part of the Director s Annual Report. The submission of an environmental statement is applicable to the following. i) Those who require consent under the water (Prevention & Control of Pollution) Act, 1974; ii) Those who require consent under the Air (Prevention & Control of Pollution) Act, 1986 and iii) Those who require authorization under Hazardous wastes (Management & Handling) Rules, In order to comply with the statutory requirement as well as to maintain corporate image in the region, recognizing the importance of comprehensive structural mechanism to ensure that the industrial activities do not cause any effects on environment, M/s. Sitapuram Power Limited, Nalgonda Dist., A.P. entrusted Vison Labs, Hyderabad the job of studying the various factors to prepare environmental statement. The enclosed report details about the environmental statement for the M/s.Sitapuram Power Limited, Nalgonda Dist., A. P. for the year of Vison Labs, Hyderabad. 5

6 1.1 PHILOSOPHY OF ENVIRONMENTAL AUDIT: Definition: Environmental auditing is a management tool comprising a systematic, documented, periodic and objective evaluation of how well the management systems are performing with the aim of: i) Waste prevention and reduction; ii) Assessing compliance with regulatory requirements; iii) Facilitating control of environmental practices by a company s management; and iv) Placing environmental information in the public domain. In the industries, especially the chemical industries, raw materials are used in excess of the tachometric requirements because of the limitations on practically achievable operational efficiencies and the raw materials purity. These excess usages of raw materials, unless recovered, find their way include non-product discharges in gaseous, liquid and solid phases. End-of the-pipe waste treatment techniques, wherein all the wastes are carried to a common facility for treatment, is proving to be ineffective and uneconomical due to the complexity of problems associated with waste generation, their quantity and characteristics. The waste generation may vary hourly, daily and seasonally, especially in case of the multiplicity of manufacturing product in the same premises. The wastewater characteristics also widely vary from stream to stream discharged from various unit operations of a particular product. In this growing complexity of problems, the concept of waste prevention and reduction can workout to be more effective. It is important to find out whether the industry is complying with environmental standards and other regulatory requirements. It is also very essential to periodically monitor this aspect, determine the gaps and workout action plans for implementation with in a reasonable time frame keeping in view the financial and other considerations of a company. In cases of gaps for compliance with the regulatory requirements, the regulatory bodies could be apprised of these action plans and time obtained for implementation. Thus the regulatory risk can overcome and effective steps taken for pollution control. Many times, the top management of a company or an industry may not be aware of the factual situation of their industry from environmental angle. Such unknown facts form hidden liabilities more often than not expose an industry to regulatory risks. The management should be able to periodically review those environmental practices of the company to formulate / modify the company s environmental policy accordingly. Vison Labs, Hyderabad. 6

7 It is also imperative that the management of a company should have a clear picture of attitudes and technical capabilities of their organizational set-up for protecting environment, pollution control status, and their bounden social obligation related to environment so as to decide on the future mode of actions. Public are to be made aware of the environmental information of the company, especially to those who are shareholders, so as to build in among them confidence. Environmental auditing can be viewed as a management tool internally, and liaison externally with the public and regulatory bodies. 1.2 BENEFITS OF ENVIRONMENTAL AUDIT Environmental auditing has far reaching benefits to the industry, to the society and the nation at large. The benefits of environmental audit are, i) Determines how well the process systems and pollution control systems are performing and identifies the operations of poor performance; ii) ii) iii) iv) Identifies potential cost savings which can be accrued through reduction in raw material consumption by way of waste minimization, and adoption of recycle / recovery/ reduction in pollution load; Increases awareness of environmental requirements, policies and responsibilities; Helps in understanding the technical capabilities and attitude of the environmental organization in a company; Provides up-to-date environmental data base for use in plant modification, emergencies etc; v) Unravels surprises and hidden liabilities due to which regulatory risk and exposure to litigation can be reduced; vi) vii) Ensures independent verification identifies matters needing attention, and provides timely warning to management on potential future problems and Helps to safeguard environment, and assists in complying with local, regional and national laws and regulations, with the company s policy and with the environmental standards. Vison Labs, Hyderabad. 7

8 1.3 OBJECTIVES: The environmental audit helps in pollution control, improving production, safety and health and conservation of natural resources. Hence overall objective can be stated as achieving of sustainable development. However for conducting environmental audit, objectives are to be defined clearly or else the audit procedure will be subject to varying interpretations, which may yield and contribute to differences in approach thereby influencing the end results. The objectives of environmental audit in an industry are: i) To determine the mass balance of various materials used and the performance of various process equipment so as to identify usage of materials in excess than required, to review to conversion efficiencies of process equipment and accordingly fix up norms for equipment / operations performance and minimization of the wastes. ii) (a) To identify the areas of water usage and wastewater generation and Determine the Characteristics of wastewater; (b) To determine the emissions, there sources, quantities and Characteristics and (c) To determine the solid wastes and hazardous wastes generated, their Sources, Quantities and characteristics iii) To identify the possibilities of waste minimization, and recovery and Recycling of wastes; iv) To determine the performance of the existing waste treatment / control systems so as to modify or install additional or alternative control equipment accordingly; v) To determine the impact on the surrounding environment ` (groundwater, stream, residential area, agricultural area, sensitive zone, etc.) vi) due to the disposal of wastewater, emissions and solid wastes from the industry and accordingly identify suitable preventive measures, if necessary; vii) To verify compliance with the standards and conditions prescribed by the regulatory bodies under the Water Act, the Air Act and the Environmental (Protection) Act; and viii) To check the effectiveness of (a) organizational set-up of the industry for decision making and environmental management with special reference to their technical view point, attitudinal view point and training, and (b) environmental policy of the company. Recognizing the importance of the structured and comprehensive mechanism for ensuring that the activities and products do not have any adverse affects on environment, M/s. SITAPURAM POWER LIMITED retained M/s.VISON LABS to under take the Environment Statement Studies. Vison Labs, Hyderabad. 8

9 1.4 Project Setting: VS Lignite Power private Limited has been promoted by the KSK Energy Ventures Limited (KSK), a company engaged in development of power generation projects. KSK has successfully implemented and operating power generation plants in the country. KSK is currently implementing many projects, with an installed capacity of over 800 MW in various states of AP, Tamil Nadu, Chhattisgarh, Maharashtra and Kerala. Some of the projects are listed below: Arasmeta Captive Power Company Pvt. Ltd. 2 X 43 MW (Phase-I & II ) coal based power plant for Lafarge India Pvt. Ltd at Janjgir-Champa District of Chhattisgarh; Sitapuram Power Limited - 43 MW coal based power plant for Zuari Cements, Andhra Pradesh; Kasorgod Power Company Limited (KPCL) 21 MW Independent Power Plant (IPP) based on LSHS at Kasorgod, Kerala; Sai Regency Power Company Private Limited - 58 MW Gas Based Power Plant at Ramanathapuram, Tamil Nadu; VS Lignite Power Private Limited (VSLP) - 1 X 135 MW Lignite Based Power Plant, Village Gurha, District Bikaner, Rajastan; Wardha Power Company Limted (WPCL) 4 x 135 MW coal based power plant at MIDC, Warora, Dist Chandrapur, Maharastra; The coal based thermal power plant is located near Dondapadu Village, Mellacheruvu Mandal, Nalgonda District, Andhra Pradesh. The index map of the Power plant 10 km radius study area map shown in figure-1 and figure-2 Respectively. The 96 m high stack is the main source of air pollution from the power plant. Fugitive emissions are expected from coal handling area, coal storage area and ash handling area. Vison Labs, Hyderabad. 9

10 1.5 Process Description : The Sitapuram Power Limited is a unit with configuration of 2 x 21.5 MW units, with one steam turbine and two boilers. The project involves two AFBC boilers, generating steam at 89 bars at 515 o C with one condensing turbo generator set having generating capacity of 43 MW of power. The salient features of the power plant are given in Table-1. TABLE - 1 SALIENT FEATURES OF SITAPURAM POWER LTD. S. N. Parameter Description 1 Plant capacity 43 MW (2 X 21.5 MW) 2 Capacity of steam generator 90 TPH AFBC type Boiler 3 Generator 43 MW 4 Fuel 30 MT/hr. sourced from SCCL 5 Ash Generation 280 TPD 6 Water requirement and 6000 KLD from river Krishna source 7 Total waste water generation 1569 KLD with total recycle and reuse 8 Waste water treatment Neutralization pond Guard pond RO plant 9 Fire fighting system Adequate fire fighting systems as per tariff Advisory Committee(TAC) and OISD Guidelines 10 Stack height and diameter at top (m) 96 m and 4.0 m 11 Air pollution control equipments Source: Sitapuram Power Limited. ESP s with four fields for each boiler outlet Vison Labs, Hyderabad. 10

11 Sitapuram Power Limited SOURCE: MAPS OF INDIA FIGURE -1 INDEX MAP Vison Labs, Hyderabad. 11

12 FIGURE-2 STUDY AREA MAP OF 10 KM RADIUS SHOWING SAMPLING LOCATIONS Vison Labs, Hyderabad. 12

13 1.6 Scope of the study: The study covers core area of 5 km radius circle with the plant site as the center. The scope of study broadly includes: To conduct liter rate review and to collect data relevant to the study area; To undertake environmental monitoring so as to establish the baseline environmental status of the study area; To identify various existing Pollution loads due to various activities in the Ambient Levels; and To identify critical environmental attributes required to be monitored. 1.7 Methodology of the study: The consultants conducted reconnaissance survey and sampling locations were identified on the basis of: Predominant wind directions in the study area as record by Indian meteorological department (IMD) station at khammam. Existing topography; location of surface water bodies like ponds, canals and rivers. Location of villagers / towns/ sensitive areas; Accessibility, power availability and security of monitoring equipment; pollution Packets in the area; Areas which represent baseline conditions; and Collection, collation and analysis of baseline data for various environmental Attributes. The field observations area used to: Identify extent of negative impacts on community/ natural resources, and Identify mitigation measures and monitoring requirements. Field studies have been conducted during April 2009 to March2010, which will determine existing conditions of various Environmental attributes. Vison Labs, Hyderabad. 13

14 CHAPTER 2.0 Form V Vison Labs, Hyderabad. 14

15 FORM - V (See Rule 14) Environmental Statement Report for the financial year ending the 31 st March PART-A (i) Name and adders of the Owner/Occupier of the Industry, Operation or process : Mr. K. A. Sastry Director M/s. Sitapuram Power Limited, Dondapadu Village, Mellacheruvu Mandal, Nalgonda District Andhra Pradesh Tel. & Fax No.: (ii) Industry Category (iii) Production capacity : Red Category Hazardous Coal based power plant : 43MW (iv) Year of Establishment : 2008 (v) Date of the last environmental : September 2010 Audit report submitted. PART B Water and Raw Material Consumption (i) Water consumption, m 3 /day : Please refer Annexure 1A Previous Year Current Year ( ) ( ) DM Plant Cooling Tower Domestic Name of Product Water Consumption per unit of product During the During the Previous current Financial year financial year ( ) ( ) Electricity 4.97 lit/ KWH 3.52 lit/ KWH Vison Labs, Hyderabad. 15

16 Raw Material consumption: Name of raw Name of Consumption of raw material per unit of output Material. Products. (Tons/KWH, Lit. /KWH of Electricity) During the During the previous current financial year financial year ( ) ( ) Coal Electricity LDO Oil Electricity PART C Pollution Generated (Parameters as specified in the consent issued) Pollution discharged to Environment/ Unit of output (i) Pollutant Quantity of Percentage of Pollution variation from Generated Prescribed standards a) Water Please refer Annexure I B & I C b) Air Please refer Annexure I D PART D Hazardous Wastes (As specified under Hazardous wastes / management and handling rules, 1989) Hazardous Wastes Total Quantity During the During the Previous current Financial year financial year ( ) ( ) (a) From process 49 lit. 11 lit. Waste oil (b) From pollution control Nil Nil Facility (c) Quantity recycled or Re-utilized Nil Nil Waste oil generated in the process will be sold to APPCB authorized waste recycler. Vison Labs, Hyderabad. 16

17 PART-E Solid Wastes Total Quantity During the During the previous current financial year financial year ( ) ( ) (a) From process Fly ash 1.23 Lac MT Lac MT Bottom ash 0.15 Lac MT Lac MT (b) From Pollution Control facility Nil Nil (c) Quality recycled or re-utilized i) Bottom ash and Fly Ash The total generated (i.e., 100%) fly ash was sent to M/s. Italcementi Group (Zuari Cement Limited) for use in Portland Pozzolona Cement manufacturing. PART F Please specify the characteristics in terms of composition and quantum of hazardous as well as solid wastes and indicate disposal practice adopted for both these categories of wastes. The generated waste oil will be sold to APPCB authorized waste recyclers after having adequate quantity of it. The total generated fly ash was sent to M/s. Italcementi Group (Zuari Cement Limited) for use in Portland Pozzolona Cement manufacturing. Also the generated bottom ash was sent to M/s. Italcementi Group for further disposal. Vison Labs, Hyderabad. 17

18 PART G Impact of the pollution control measures on conservation of natural resources and on the cost of production. Regular monitoring of ambient air quality, stack emissions and effluent quality have been taken up to evaluate the efficiency of the pollution control systems and control measures on the overall emissions from stack and ambient air. Cost details of pollution control equipment & environmental monitoring for the financial year are follows: I. Revenue nature (Rs. in Lacs) a) Air pollution control Department Expense (including stores & spares) b) Waste water treatment plant c) Solid waste disposal d) Noise assessment Rs. 63,58,000/- e) Environmental Monitoring f) Fire protection/fire fighting f) Greenbelt Development/Maintenance h) Water cess Total quality of products Cost per unit of product MU Rs per KWH Vison Labs, Hyderabad. 18

19 PART H Additional measures investment proposal for environmental protection including abatement of pollution, prevention of pollution. 1. All internal roads are either concreted or black topped to reduce the fugitive dust emission inside the plant premises. 2. A massive tree plantation is in progress inside as well as outside of the Plant premises. Also small patches of gardens are developed inside of the plant premises wherever the open space is available to improve the plant beautification. 3. A guard pond is constructed in the plant for storage of generated waste water and the same is recycled for plantation and coal dust suppression in the plant area. The remaining waste water from guard pond is sent to M/s. Italcementi Group (Zuari Cement Limited) for recycle/ reuse. Hence there is no discharge of waste water from the plant area and the unit is zero discharge unit. 4. A water sprinkling arrangement is provided in the coal handling area to reduce the fugitive dust emission in the plant. 5. Housekeeping is taking on top priority and engaged 20 no. of manpower for maintaining neat and clean environment in the plant premises. As already adequate measures have been taken for pollution control, no further capital investment is planned for the next financial year PART I Miscellaneous Any other particulars for improving environment protection and abatement of pollution plants have been planted inside & all along the periphery of the plant boundary as on 31 st march The no. of saplings proposed for next financial year is 2000 no. Mr. M. Venukumar (Plant Head) M/s. Sitapuram Power Limited, Dondapadu Village, Mellacheruvu Mandal, Nalgonda District, Andhra Pradesh Vison Labs, Hyderabad. 19

20 ANNEXURE I A WATER BALANCE STATEMENT (m 3 /day) (April 2010 March 2011) 1. Water drawn from river Utilization Requirement Effluent Losses Recycle A} Industrial DM Plant Cooling Towers/Boiler Blow down B} Domestic Canteen Sanitation C} Miscellaneous Fire Practice Green belt Development Total Note: The generated effluent is reused for green belt development and coal dust suppression in the plant. The remaining wastewater from the guard pond is sent to M/s. Italcementi Group (Zuari Cement Limited) for recycle/reuse. Vison Labs, Hyderabad. 20

21 ANNEXURE- I B DATA OF INDUSTRIAL EFFLUENT (Guard Pond), (APRIL MARCH 2011) Month ph Suspended solids mg/l Oil & Grease mg/l April <1.0 May <1.0 June <1.0 July <1.0 August <1.0 September <1.0 October <1.0 November <1.0 December <1.0 January <1.0 February <1.0 March <1.0 ANNEXURE I C WASTE WATER GENERATION AND POLLUTANT DISCHARGE MAIN DRAIN EFFLUENT Parameter Quantity of Pollution Generated, TPA Quantity of Pollution Generated, Kgs/ Lac MU Electricity Total Suspended Solids (TSS) Oil & Grease (O.&G.) - - Average flow considered (Effluent) is m 3 /d. Total quantity of wastewater generated during April 2010 to March 2011 is m 3. Vison Labs, Hyderabad. 21

22 ANNEXURE I D AIR [Source Emissions] (April 2010 March 2011) Stack Attached to Coal fired Boiler Stack Height (m) Stack Diamet er (m) Average Velocity (m/s) Average Temp ( 0 C) Dust Concentration (mg/nm 3 ) SO 2 (mg/nm 3 ) NOx (mg/nm 3 ) Max. Min. Max. Min. Max. Min. Max CO (PPM) Min Dust Control Equipme nt ESP s Pollutants Discharged POLLUTION GENERATED AND QUANTITY OF POLLUTION Quantity of pollution Generated in the period April 2010 to March 2011 (In tones) Percentage variation from Prescribed Standards Particulate Matter 26.7 < 34 Sulphur Dioxide (SO 2 ) Oxides of Nitrogen (NOx) ve = Above the APPCB prescribed Limit - ve = Below the APPCB prescribed Limit Vison Labs, Hyderabad. 22

23 Chapter 3.0 Pollution Audit Vison Labs, Hyderabad. 23

24 3.0 Pollution Audit The basic objective of pollution audit is to investigative the status/ efficiency of environmental management system and equipment vis-à-vis the regulatory requirements. The environmental quality can be assessed by studying the following: 3.1 Ambient Air Quality 3.2 Noise Monitoring 3.3 Water and Waste Water Quality 3.1 Ambient Air Quality The ambient air quality monitoring was carried out in there locations during April - 10 to March 2010 covering to the baseline details of ambient air quality monitoring locations are given in Table 3.1 TABLE-3.1 DETAILS OF AMBIENT AIR QUALITY MONITORING LOCATIONS Location code Location Name Direction w.r.t Plant Distance from plant (km) Inside the Premises AAQ 1 Top of ENMAS Building Within the plant Within the plant AAQ 2 Top of security office Within the plant Within the plant AAQ 3 Top of Administrative Building Within the plant Within the plant Outside the Premises AAQ 4 Dondapadu Village SW 1.5 AAQ 5 Ramapuram Village NW 5.0 AAQ 6 Muktishwarpuram Village E Sampling and Analytical Techniques: Whatman GF/A filter paper was used in PM10 & PM 2.5 and weighed in Mettler electronic balance and computed as per standard methods. Ambient Air samples were analyzed for SO2 concentration levels using Improved West Gaeke method using preprogrammed HACH spectrophotometer at a wavelength of 560nm. NOx concentration levels were estimated using Jacob and Hocheiser modified (Na-As) method using preprogrammed HACH spectrophotometer at a wavelength of 540 nm. Ozone (O3) concentration levels, using Improved IS 5182 (Part IX) Ammonia (NH3) concentration levels using Improved APHA-401. Lead(Pb), Arsenic(As), Nickel(Ni) concentration levels using improved ASTMD Benzene(C6H6) concentration levels using Improved APHA-401. Benzo(a)Pyrene (BaP) concentration levels using Improved APHA-401 and Carbon Monoxide concentration levels using indicator tub method. The details are given below in Table-3.1.1: Vison Labs, Hyderabad. 24

25 Calibration Calibration charts have been prepared for all gaseous pollutants. The calibration is carried out whenever new absorbing solutions are prepared. The following techniques have been used for ambient air quality monitoring: TABLE TECHNIQUES USED FOR AMBIENT AIR QUALITY MONITORING S.No Parameter Testing Method to be Followed Minimum detectable 1 PM 10 IS:5182 (Part IV) µg/m 3 2 PM 2.5 IS:5182 (Part IV) µg/m 3 3 SO 2 (Sulfur Dioxide) IS:5182 (Part II) 1969, with Improved West & Gaeke Method 4.0 µg/m 3 4 NO 2 (Nitrogen Dioxide) Modified Jacobs Hochheiser Method / Arsenite Method 5.0 µg/m 3 5 Ozone (O 3 ) IS:5182 (Part IX) µg/m 3 6 Ammonia NH 3, APHA µg/m 3 7 Lead (Pb), ASTMD µg/m 3 8 Arsenic(As), ASTMD ng/m 3 9 Nickel (Ni) ASTMD ng/m 3 10 Benzene (C 6 H 6 ) 1005 OSHA 0.01µg/m 3 11 Benzo(α)Pyrene (BαP) 58 OSHA 0.01 ng/m 3 12 Carbon Monoxide Indicator tub Method 1 mg/m Presentation of Primary Data The various statistical parameters like 98 th percentile, average, maximum and minimum concentrations for the study period have been computed from the observed raw data for all the AAQ monitoring stations. The summary of these results is presented in Table Observations on Primary Data Inside The Plant PM10: The 98 th percentile of maximum and minimum PM 10 concentrations during the study period were observed to be 89.0 µg/m 3 and 82.7 µg/m 3 respectively. PM2.5: The 98 th percentile of maximum and minimum PM 2.5 concentrations during the study period were observed to be 27.9 µg/m 3 and 24.5 µg/m 3 respectively. SO 2 : The 98 th percentile of maximum and minimum SO 2 concentrations during the study period were observed to be 15.8 µg/m 3 and 13.6 µg/m 3 respectively. NO2: The 98 th percentile of maximum and minimum NO2 concentrations during the study period were observed to be 21.3 µg/m 3 and 19.7 µg/m 3 respectively. Vison Labs, Hyderabad. 25

26 O3 The 98 th percentile of maximum and minimum O3 concentrations during the study period were observed to be 34.2 µg/m 3 and 28.5 µg/m 3 respectively. NH3: The 98 th percentile of maximum and minimum NH3 concentrations during the study period were observed to be 17.7 µg/m 3 and 14.1 µg/m 3 respectively. Pb: The value of Pb observed in all locations are Below Detectable Limit respectively. As: The value of AS observed in all locations are Below Detectable Limit respectively. Ni: The value of Ni observed in all locations are Below Detectable Limit respectively. C 6 H 6 : The value of C 6 H 6 observed in all locations are Below Detectable Limit respectively. Benzo(α)Pyrene (BaP): The values of BαP observed in all locations are Below Detectable Limit respectively. CO: The 98 th percentile of maximum and minimum CO concentrations during the study period were observed to be 2.1 mg/m 3 and 1.9 mg/m 3 respectively Observations on Primary Data Outside the Premises PM10: The 98 th percentile of maximum and minimum PM 10 concentrations during the study period were observed to be 36.6 µg/m 3 and 33.5 µg/m 3 respectively. PM2.5: The 98 th percentile of maximum and minimum PM 2.5 concentrations during the study period were observed to be 13.4 µg/m 3 and 12.3 µg/m 3 respectively. SO 2 : The 98 th percentile of maximum and minimum SO 2 concentrations during the study period were observed to be 13.0 µg/m 3 and 11.5 µg/m 3 respectively. NO2: The 98 th percentile of maximum and minimum NO2 concentrations during the study period were observed to be 15.2 µg/m 3 and 14.1 µg/m 3 respectively. O3: The 98 th percentile of maximum and minimum O3 concentrations during the study period were observed to be 23.4 µg/m 3 and 21.9 µg/m 3 respectively. NH3: The 98 th percentile of maximum and minimum NH3 concentrations during the study period were observed to be 12.9 µg/m 3 and 11.8 µg/m 3 respectively. Pb: The value of Pb observed in all locations are Below Detectable Limit respectively. Vison Labs, Hyderabad. 26

27 As: The value of AS observed in all locations are Below Detectable Limit respectively. Ni: The value of Ni observed in all locations are Below Detectable Limit respectively. C 6 H 6 : The value of C 6 H 6 observed in all locations are Below Detectable Limit respectively. Benzo(α)Pyrene (BaP): The values of BαP observed in all locations are Below Detectable Limit respectively. CO: The 98 th percentile of maximum and minimum CO concentrations during the study period were observed to be 1.8 mg/m 3 and 1.4 mg/m 3 respectively. TABLE Ambient Air quality Results per the year Inside Plant Area Station PM10 PM2.5 SO 2 NO 2 Code 98 th 98 th Min. Max. Avg. Min. Max. Avg. %tile %tile Min. Max. Avg. 98 th 98 th Min. Max. Avg. %tile %tile AAQ AAQ AAQ Station Code O3 NH 2 CO 98 th Min. Max. Avg. %tile Min. Max. Avg. %tile Min. Max. Avg. AAQ AAQ AAQ Note: 1. The values of Pb, As, Ni, C 6 H 6, BaP are in Below Detectable Limit. 2. The concentrations (PM 10, PM 2.5, SO 2, NO 2, O 3, Pb, NH 3 and C 6 H 6 ) are expressed in µg/m 3, Concentrations (As, Ni and BaP) are expressed in ng/m 3 and Concentrations CO is expressed in mg/m 3. Location Code and Name: 1. AAQ-1 : Top of ENMAS Building 2. AAQ-2 : Top of Security Office 3. AAQ-3 : Top of Administrative Building 98 th 98 th %tile Vison Labs, Hyderabad. 27

28 Ambient Air Quality Results for the year Outside the Premises Station PM10 PM2.5 SO 2 NO 2 Code 98 th 98 th 98 th 98 th Min. Max. Avg. Min. Max. Avg. Min. Max. Avg. Min. Max. Avg. %tile %tile %tile %tile AAQ AAQ AAQ Station Code O3 NH 2 CO 98 th Min. Max. Avg. %tile Min. Max. Avg. %tile Min. Max. Avg. AAQ AAQ AAQ Note: 1. The values of Pb, As, Ni, C 6 H 6, BaP are in Below Detectable Limit. 2.The concentrations (PM 10, PM 2.5, SO 2, NO 2, O 3, Pb, NH 3 and C 6 H 6 ) are expressed in µg/m 3, Concentrations (As, Ni and BaP) are expressed in ng/m 3 and Concentrations CO is expressed in mg/m 3. Location Code and Name: 4. AAQ-4 : Dondapadu Village 5. AAQ-5 : Ramapuram Village 6. AAQ-6 : Muktishwarapuram Village 98 th 98 th %tile 3.2 Noise Level Monitoring The Ambient noise levels monitoring were carried out in 12 different locations identified inside of the plant area to find out the day time and night time noise levels Method of monitoring Sound pressure level (SPL) measurements were measured at all locations; one reading for every hour was taken for 24 hours. The day noise levels have been monitored during 6 am to 10 pm and night levels during 10 pm to 6 am at all the locations in the plant area. The details of sampling locations along with the monitoring results are presented in the Table Vison Labs, Hyderabad. 28

29 TABLE DETAILS OF NOISE MONITORING LOCATIONS AND MONITORING RESULTS Ld Ln S. N. Locations [db(a)] [db(a)] 1 Turbine area Compressors room Near feed pump Near id fan Near FD fan Near MCW Pump Near martial gate Near main gate Near administrative building Near crushers PFV system Near garden The day time levels in the study area are ranged from 48.1 db(a) to 74.6 db (A), where as the night time noise levels are observed to be in the range of 40.8 db (A) to 69.7 db (A) it is observed that, noise levels in the study area are well within the prescribed standards. 3.3 Water Quality One water sample in the plant area was collected and analyzed at a frequency of once in a month during the study period i.e. April to March The result of the water sample is given Table Vison Labs, Hyderabad. 29

30 TABLE Water Analysis Results (April 2010 to March 2011) S. N. Parameter UOM Range 1 ph Turbidity (NTU) mg/l Total Dissolve solids mg/l Dissolved Oxygen mg/l Total Suspended Solids mg/l Total Hardness as CaCO 3 mg/l Residual Free Chlorine mg/l < < Chloride as Cl mg/l Sulphate as SO 4 mg/l Copper as Cu mg/l < Iron as Fe mg/l Chromium as Cr 6+ mg/l < Zinc as Zn mg/l < Phosphates as PO 4 mg/l < Chemical oxygen Demand mg/l Biochemical Oxygen Demand (3days 27 0 C) mg/l Oil & Grease mg/l < 1.0 Vison Labs, Hyderabad. 30

31 Chapter Safety and Energy Aspects Vison Labs, Hyderabad. 31

32 4.0 Safety Aspects The following are the identified fire/ accident-prone areas in captive power plant are coal yard, LDO oil storage area, ESP and boiler area etc. 4.1 Fire Fighting Equipment Sitapuram power limited has taken up adequate measure to safeguard the worked and property with the following steps. I. Approx. 34 nos. of different types of portable fire extinguishers are available in the plant premises II. III. Fire hydrant system consisting of 24 nos of hydrant posts, 13 nos of fire escape points and 3 nos of water monitoring systems are installed in the plant premises Fire direction cum alarm system and manual call points installed in the TG building and electrical control points. 4.2 Safety function Some of the important safety related activities viz. plant safety audits, safety training, conducting safety meetings, testing of lifting equipments/ tickles, procurement & inventory control of various personal protective equipments &maintaining of safety statistics etc are looked by the SED. 4.3 Specific Energy Consumption Sitapuram Power Limited is commissioned in January 2008 and planning to set up an energy conservation cell to monitor and implement various conservation measures to reduce the specific energy consumption per unit of electricity generated. Vison Labs, Hyderabad. 32

33 Chapter 5.0 Auditor s Comments Vison Labs, Hyderabad. 33

34 5.0 Auditor s Comments. This report presents the findings of study carried out to prepare the Environmental Statement for the year , for M/s.Sitapuram Power Limited, Nalgonda District, Andhra Pradesh. 1. The present air quality concentration in the plant and out side the plant area shows that the PM 10, PM 2.5, SO 2, NO 2, O 3, Pb, NH 3, C 6 H 6, As, Ni and BaP are well within the permissible limits prescribed by CPCB. 2. Good house keeping is in practice to reduce the fugitive emissions from the operations. 3. The total of the fly ash generated in the process is being sent to M/s.Italcementi Group (Zuari Cement Limited) for use in Portland Pozzolona Cement manufacturing. 4. The water quality is observed to be without any significant change that can cause damage to the existing biotic systems. 5. SPL has established an RO plant to treat the waste water generated in the process to recycle/reuse back in the process to reduce the water consumption. 6. The waste oil generated from the plant machinery will be sold to APPCB authorized recyclers. 7. The SPL has taken up the plantation program to develop the green belt around the periphery of the plant area. As on 31 st March 2010, the total of plants have been planted and about 2000 samplings are proposed for plantation in The project authorities have spent Rs lakhs for Operation and Maintenance of the Air Pollution Control equipment and other pollution control activities and for safety aspects. Findings reviewed & passed T.Laxmikanth Reddy Chief Executive Vison Labs; Vison Labs, Hyderabad. 34