ENVIRONMENTAL IMPACT ASSESSMENT REPORT & ENVIRONMENTAL MANAGEMENT PLAN
FOR
NEW UMRANGSHU LIMESTONE AREA
Near Village – Umrangshu, M.L. Area–430.00 ha., Tehsil – Umrangshu, District – Dima Hasao (N. C. Hills) (Assam) Purpose –EC for fresh grant Proposed production- 2.0 Million TPA(ROM) PROJECT COST – 13.00 Crores/- CATEGORY- ΄A΄ TOR LETTER No.J-1105/397/2014-IA.II (M) ON DATED 4/02/2015. Study Period- December 2014 to February 2015
LESSEE EIA CONSULTANT ASSAM MINERAL DEVELOPMENT CORPORATION LTD. M/S UDAIPUR MIN-TECH PVT. LTD. KHANIJ BHAWAN SAHJAHAN MARKET, 206, APEKSHA COMPLEX, SEC. -11 NEAR GANESH MANDIR, R.P. ROAD, DISPUR HIRAN MAGRI, UDAIPUR (RAJ.)-313002 GUWAHATI-781001, ASSAM PH. 91-294-2489672(OFF.) +91 9414167672 PH. 91-361-2384078 (Off.) EMAIL: [email protected] Email: [email protected]
ACCREDITED BY NABET CATEGORY “A” FOR MINING SECTOR (S. No. 137) . 1 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assaam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
2 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
ACCREDITATION BY NABET
2
3 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
LIST OF ABBREVIATIONS
AMSL Above Mean Sea Level AAQ Ambient Air Quality bgl Below Ground Level BOD Biochemical Oxygen Demand COD Chemical Oxygen Demand TDS Total Dissolve Solid CPCB Central Pollution Control Board CSR Corporate Social Responsibility dB Decibel DO Dissolved Oxygen EAC Expert Appraisal Committee EIA Environmental Impact Assessment EMC Environmental Management Cell EMP Environment Management Plan EPA The Environment Protection Act GLC Ground Level Concentration Ha Hectare HFL High Flood Level JIR Joint Inspection Report KLD Kilo litre Per Day Km Kilo Meter Leq Equivalent Noise Level LFL Low Flood Level LOS Level of Service LoI Letter of Intent MoEF Ministry of Environment and Forest NABET National Accreditation Board for Education and Training NH National Highway NOC No Objection Certificate OSHA Occupational Safety and Health Administration PCU Passenger Car Unit PFR Pre- feasibility Report PM Particulate Matter PUC Pollution Under Control QCI Quality Council of India RBM River Bed Material RL Reduced Level SH State Highway SPCB State Pollution Control Board ToR Terms of Reference TPA Tonnes Per Annum USEPA United State Environmental Protection Agency MT Metric tone 4 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
PF/RF Protected Forest/Reserve Forest PM10/2.5 Particulate Matter PP Project Proponent PPE Personal Protective Equipment R & R Plan Resettlement & Rehabilitation plan ToR Terms of Reference S South E East W West N North
5 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
INDEX S.NO. PARTICULAR PAGE NO. CHAPTER - I INTRODUCTION 1.1 PURPOSE OF THE REPORT 10 1.2 IDENTIFICATION OF PROJECT & PROJECT PROPONENT 10 1.3 BRIEF DESCRIPTION OF NATURE, SIZE AND LOCATION OF THE 11 PROJECT 1.4 SCOPE OF THE STUDY 12 CHAPTER – II PROJECT DESCRIPTION 2.1 TYPE OF PROJECT 26 2.2 NEED FOR THE PROJECT & ITS IMPORTANCE TO COUNTRY 26 2.3 LOCATION OF APPLIED AREA 26 2.4 SIZE OR MAGNITUDE OF OPERATION 30 2.5 TECHNOLOGY AND PROCESS DESCRIPTION 36 CHAPTER – III DESCRIPTION OF THE ENVIRONMENT 3.1 STUDY AREA 40 3.2 LAND ENVIRONMENT 40 3.3 WATER ENVIRONMENT 51 3.4 AIR ENVIRONMENT 56 3.5 NOISE ENVIRONMENT 64 3.6 BIOLOGICAL ENVIRONMENT 68 3.7 SOCIO ECONOMIC ENVIRONMENT 83 CHAPTER - IV ANTICIPATED ENVIRONMENTAL IMPACTS & MITIGATION MEASURES 4.1 INTRODUCTION 93 4.2 IMPACT ON LAND ENVIRONMENT AND MITIGATION MEASURES: 93 4.3 IMPACT ON WATER ENVIRONMENT AND MITIGATION 94 MEASURES 4.4 IMPACT ON AIR ENVIRONMENT AND MITIGATION MEASURES 95 4.5 IMPACT OF NOISE / VIBRATIONS & MITIGATION MEASURES 103 4.6 IMPACT ON BIOLOGICAL ENVIRONMENT & MITIGATION 104 MEASURES 4.7 IMPACT ON SOCIO ECONOMIC CONDITIONS 105 4.8 IMPACT ON OCCUPATIONAL HEALTH & SAFETY 107 4.9 IMPACT ON TRAFFIC DENSITY 109 CHAPTER – V ANALYSIS OF ALTERNATIVES (TECHNOLOGY & SITE ) 5.1 SITE ALTERNATIVES 110 5.2 TECHNOLOGY ALTERNATIVE 110 CHAPTER – VI ENVIRONMENTAL MONITORING PROGRAMME 6.1 INTRODUCTION 111 6.2 PROPOSED SET UP 111 6.3 ENVIRONMENT MANAGEMENT CELL 112 6.4 ENVIRONMENT POLICY 112 6.5 MONITORING SCHEDULE AND PARAMETER 113 6.6 BUDGETARY PROVISION FOR ENVIRONMENTAL MANAGEMENT 114
6 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER –VII ADDITIONAL STUDIES 7.1 INTRODUCTION 115 7.2 IDENTIFICATION OF HAZARD 115 7.3 SCENARIO CONSIDERED FOR RISK ASSESSMENT 115 7.4 DISASTER MANAGEMENT PLAN 118 7.5 OUTLINE OF DISASTER MANAGEMENT PLAN 118 7.6 SOCIAL IMPACT ASSESSMENT, R&R ACTION PLAN 119 CHAPTER - VIII PROJECT BENEFITS 8.1 INTRODUCTION 120 8.2 IMPROVEMENT IN SOCIAL INFRASTRUCTURE 120 8.3 IMPROVEMENT IN PHYSICAL INFRASTRUCTURE 120 8.4 EMPLOYMENT POTENTIAL 120 8.5 CONCLUSION 121
CHAPTER – IX ENVIRONMENT MANAGEMENT PLAN 9.1 INTRODUCTION 122 9.2 GREEN BELT DEVELOPMENT 126 9.3 SOCIO ECONOMIC ENVIRONMENT: 128 9.4 OCCUPATIONAL SAFETY & HEALTH 128 CHAPTER – X SUMMARY & CONCLUSION 10.1 INTRODUCTION 131 10.2 IDENTIFICATION OF PROJECT & PROJECT PROPONENT 131 10.3 LOCATION OF PROJECT 132 10.4 SIZE OR MAGNITUDE OF OPERATION 132 10.5 MINING METHOD 135 10.6 EMPLOYMENT DETAIL 135 10.7 MACHINERIES DEPLOYED 135 10.8 DESCRIPTION OF ENVIRONMENT 136 10.9 ENVIRONMENT MONITORING CELL 138 10.10 ENVIRONMENT MANAGEMENT PLAN 138 CHAPTER - XI DISCLOSURE OF CONSULTANT ENGAGED 140
LIST OF TABLES
TABLE PARTICULAR PAGE NO. NO. 2.1 TENTATIVE EXCAVATION DURING FIRST FIVE YEAR 37 2.2 MACHINERY DEPLOYED 37 2.3 EMPLOYMENT POTENTIAL 39 3.1 LAND USE PATTERN BASED ON SATELLITE IMAGE 42 3.2 LAND USE PLAN FOR PRE- OPERATIONAL, OPERATIONAL & POST 46 -OPERATIONAL PHASES (IN HECT.) 3.3 SOIL SAMPLING LOCATIONS IN THE STUDY AREA 49 3.4 ANALYSIS RESULTS OF SOIL SAMPLES 51 3.5 DAILY WATER REQUIREMENTS 52
7 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3.6 LOCATION OF WATER SAMPLING IN THE STUDY AREA 53 3.7 ANALYSIS RESULTS OF GROUND WATER SAMPLES 55 3.8 MEAN TEMPERATURE & RELATIVE HUMIDITY (FROM NEAREST 56 IMD STATION DABOK) 3.9 SITE SPECIFIC METEOROLOGICAL DATA 57 3.10 LOCATION OF AMBIENT AIR MONITORING STATIONS 57 3.11 PROCEDURE FOR DETERMINING VARIOUS AIR QUALITY 61 PARAMETERS 3.12 AMBIENT AIR QUALITY RESULT 62 3.13 LOCATION OF NOISE MONITORING STATIONS 65 3.14 NOISE LEVEL WITHIN THE STUDY AREA (UNIT – DBA) 67 3.15 CPCB NOISE STANDARD 67 3.16 LIST OF FLORAL SPECIES OBSERVED IN CORE ZONE 75 3.17 LIST OF FLORAL SPECIES OBSERVED IN BUFFER ZONE 79 3.18 LIST OF FAUNA SPECIES OBSERVED IN THE CORE ZONE 80 3.19 LIST OF FAUNAL SPECIES OBSERVED IN BUFFER ZONE 81 4.1 PREDICTED AMBIENT AIR QUALITY CONCENTRATIONS IN 102 OPERATION PHASE CUMULATIVE CONCENTRATIONS (BASELINE + INCREMENTAL) FOR PM10 6.1 MONITORING SCHEDULE FOR ENVIRONMENTAL PARAMETERS 114 6.2 COST OF ENVIRONMENTAL PROTECTION MEASURES 114 (INVESTMENT AND RECURRING COST) 8.1 EMPLOYMENT POTENTIAL 121 9.1 ENVIRONMENT MANAGEMENT PLAN IMPLEMENTATION 122 9.2 COST ESTIMATES OF EMP IMPLEMENTATION 126 9.3 STAGE WISE PLANTATION 127 9.4 SCHEDULE OF PLANTATION (STAGE WISE) 127 9.5 PLANTATION SPECIES 128 9.6 COST OF CSR ACTIVITIES 128 9.7 BUDGETARY PROVISION FOR WORKERS 130
LIST OF FIGURES
FIG. NO. PARTICULAR PAGE NO. 2.1 LOCATION MAP 27 2.2 KEY PLAN OF THE APPLIED AREA 28 2.3 GOOGLE IMAGE SHOWING GENERAL LOCATION OF THE APPLIED AREA 29 3.1 LAND USE / LAND COVER MAP PATTERN OF THE STUDY 43 3.2 SATELLITE IMAGE OF 10 KM RADIUS OF THE STUDY AREA 44 3.3 TOPOGRAPHY MAP OF THE STUDY AREA 47 3.4 DRAINAGE MAP OF THE STUDY AREA 48 3.5 SOIL SAMPLING LOCATIONS IN THE STUDY AREA 50 3.6 SCHEMATIC REPRESENTATION OF SITE ELEVATION, WORKING 52 DEPTH & GROUND WATER 3.7 WATER BALANCE DIAGRAM 52 3.8 GROUND WATER SAMPLING LOCATION IN STUDY AREA 54 3.9 WIND ROSE DIAGRAM 58 3.10 AMBIENT AIR SAMPLING LOCATION IN THE STUDY AREA 60 3.11 MAP FOR NOISE MONITORING 67
8 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3.12 PHOTOGRAPHS OF NOISE MONITORING IN THE STUDY AREA 69 3.13 BIOLOGICAL SAMPLING LOCATION MAP OF THE STUDY AREA 74 3.14 SAMPLING LOCATION FOR SOCIO ECONOMICS STUDY 92
LIST OF PLATES
1 LOCATION PLAN 2 KEY PLAN 3 SURFACE PLAN 4 SURFACE LAYOUT PLAN AND SECTION 5 SURFACE GEOLOGICAL PLAN 6 GEOLOGICAL SECTION 7 CONCEPTUAL PLAN
LIST OF ANNEXURE
I Copy of Certificate of Incorporation of the company II Copy of mining Lease application III Letter of grant of lease from state govt. IV Letter of extension of date for submission of mining plan V NOC from N C hills Autonomous District council VI Board resolution in favour of Nominated owner VII Voter ID with address proof VIII List of Board of Directors IX Copy of Tor letter X XI XII XIII
9 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER-I INTRODUCTION
1.1 PURPOSE OF THE REPORT This report is prepared to evaluate the environmental impacts of the Proposed production 2.0Million TPA of project namely New Umrangshu limestone area, mining applied area 430.00 ha. Govt. waste Land, near village- Umrangshu, Tehsil – Umrangshu , District – Dima Hasao(N. C. Hills) (Assam) in line with the requirements of EIA notification SO 1533(E) dated 14.9.2006 and amendments made thereof.
1.2 IDENTIFICATION OF PROJECT & PROJECT PROPONENT Project identification The Assam Mineral Development Corporation Limited (AMDC) is public limited
company wholly owned by Govt. of Assam. The company was incorporated on 19th May
1983 under Companies Act 1956. (Certificate of Incorporation of the Company is
attached as Annexure No. I ).
The AMDC applied for mining lease over an area of 430 hectares, near village
Umrangshu, Taluka Umrongshu, District – North Cachar, Assam for mineral limestone
on 05.11.2011 (Refer Annexure no. II ).
Govt. of Assam granted mining lease over an area of 430 hectares vide letter no.
PEM/48/2011/47 dt. 24 July 2012, with the condition to submit approved Mining Plan
within six months and prior EC under Environment Protection Act 1986.
( Refer Annexure No.III ).
We have submitted the mining plan within six month from issues of LOI for approval
but due to some reason, mining plan was not approved so applicant has applied for
extension of LOI and applicant has extension & now approval of mining plan under
process.
10 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Application for Environmental Clearance under the MoEF & CC EIA notification 14
September 2006 was submitted to the MOEF & CC, New Delhi and after the
presentation made before the committee, TOR was prescribed for the EIA study to be
done vide letter No. J-11015/397/2014-IA.II(M),dated 04/02/2015.
(Refer Annexure – IX Terms of reference).
Project Proponent:
Assam Mineral Development Corporation Limited is a Private Company incorporated on 19 May 1983. It is classified as State Govt. Company and is registered at Registrar of Companies, Shillong with registration number 2045. (refer Annexure –I Copy of Company incorporation certificate). Registered Office Address Assam Mineral Development Corporation Ltd. Khanij Bhawan Sahjahan Market, Near Ganesh Mandir, R.P. Road, Dispur Guwahati-781006, Assam Ph. 91-361-2384078 (off.) Email: [email protected] Contact Person Sh. J.P. Baruah (Managing Director) Assam Mineral Development Corporation Ltd. Sh. J.P. Baruah (Managing Director) and nominated owner of the Assam Mineral Development Corporation Ltd. for this project. (refer Annexure –VI Copy of Resolution Passed in the meeting of Board of Directors).
1.3 BRIEF DESCRIPTION OF NATURE, SIZE AND LOCATION OF THE PROJECT Nature of Project: This project is for mining of Limestone at near village-Umrangshu, Tehsil- Umrangshu, District – Dima Hasao (Assam)
11 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Size The Applied lease area covers an area of 430.00 hectare and it is proposed to produce 2.0 million TPA (RoM) of limestone. Location& Communication: The lease area falls on survey of India Toposheet No. 45M/14 & 83C/14 and is situated between: Latitude N Longitude E 25°32'45.44"N to 25°34'25.26"N 93°46'35.14"E to 92°47'44.70"E
Road link
Area is about 9.00 km (by road) away from the Near Village & Tehsil Umrangshu. Nearest state highway SH-20 is 0.8 km by road and SH-7 is 12.9 km by road from applied area. The applied area is presently well connected directly with the National and State highways. Rail link The nearest railway station is at Lanka which is 56.6 km from applied area. Air link Nearest airport is at Guwahati which is 273 km from applied area. Importance to country and region: Limestone mining will help in the economic growth of the country or region and provide direct and indirect employment to local people.
1.4 SCOPE OF THE STUDY The study for the proposed project was carried out as per the TOR prescribed by the MoEF & Climate change vide letter no- J-11015/397/2014-IA.II (M) (Refer Annexure-VI, Approved TOR letter by the MoEF Delhi)
12 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
The point wise compliance of the TOR prescribed by the committee in the tabular form is given as under.
S N. Description as per MOEF Covered in EIA as per details 1 Year-wise production details since It is new project only LOI has been issued and production 1994 should be given, clearly will be commenced after getting EC. stating the highest production achieved in any one year prior to 1994. It may also be categorically informed whether there had been any increase in production after the EIA Notification, 1994 came into force w.r.t the highest production achieved prior to 1994. 2 A copy of the document in support LOI has been issued by the state govt. of Assam in favour of of the fact that the proponent is Assam Mineral Development Corporation Ltd. which is the rightful lessee of the mine should be given. enclosed as annexure no. III
3 All documents including approved LOI has been issued by the state govt. of Assam in favour of mine plan, EIA report and Public Assam Mineral Development Corporation Ltd. which is hearing should be compatible with one another in terms of the mine enclosed as annexure no. III lease area, production levels,
waste generation and its management and mining Technology and should be in the name of lessee. 4 All corner coordinates of the mine All corner coordinates of the lease area, superimposed on lease area, superimposed on a toposheet (Key Plan of the Study Area). Refer Fig 2.2 & high resolution Land use plan is attached as Fig no 3.1 imagery/toposheet should be provided. Such as imagery of the proposed area should clearly show the land use and other ecological features of the study area (core and buffer zone). 5. Does the company have a well laid Yes, lessee has a well laid down Environment Policy i.e. to down Environment policy approved by its Board of Promote environmental awareness among the employees directors? If so, it may be spelt out and encourage them to work in an environmentally in the EIA report with description responsible manner. of the prescribed operating process/procedures to bring into Trained, educate and inform our employees about focus any environmental issues that may affect their work. infringement/deviation/violation of the environmental of forest Where required by legislation or where significant health, norms/conditions? The safety or environmental hazards exist, develop and 13 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
hierarchical system or maintain appropriate emergency and spill response administrative order of the programmes. company to deal with the environmental issues and for The Environmental policy, standard operating ensuring compliance with the EC procedures, hierarchal system, system of reporting non- conditions may also be given. The compliance has been furnished in Chapter – VI, EIA-EMP system of reporting of non- Report. compliances/ violations of environmental norms to the board of Directors of the company and/or shareholders or stakeholders at large may also be indicated in the EIA report. 6 Issues relating to mine safety, Mining is being done by opencast mining so no subsidence including subsidence study in case study is required. All the safety measures will adopted of underground mining and slope detail is given in Chapter No-IV study in case of open cast mining, blasting study etc. should be detailed. The proposed safeguard measures in each case should also be provided. 7 The study area will comprise of 10 The study area comprises of 10 km zone around the mine km zone around the mine lease lease boundary is shown in Fig No. 2.2 - Key Plan of the from lease periphery and the data Study Area. contained in the EIA such as waste generation etc. should be for the Data such as production and waste will be given for life of life of the mine / lease period. mine, detail is given in Chapter-II on Page No. 11. 8 Land use of the study area Land use of study area & land use of core zone is given in delineating forest area, Chapter –III on Page No 45 agricultural land, grazing land, PARTICLU PRE- OPERATIO POST - wildlife sanctuary and national ARS OPERATIO NAL OPERATIO park, migratory routes of fauna, NAL (area in NAL water bodies, human settlements (area in hect.), PHASES*(at & other ecological features should hect.), the end of be indicated. lease Land use plan of the mine lease period) area should be prepared to (area in encompass preoperational, hect.), operational and post operational Pits 0.0 21.80 177.46 phases and submitted. Impact, if Dump 0.0 7.24 17.00 any, of change of land use should Road/ 1.74 2.50 3.00 be given Building 0.00 5.50 5.50 Plantation 0.00 7.50 30.00 Mineral 0.00 3.00 3.00 Stack Remaining 428.26 382.46 194.04 land Total Area 430.00 430.00 430.00
14 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
LAND USE PATTERN OF THE STUDY AREA S. No. Class Names Area (Ha.) % (Area) i Open Degraded 112260.26 21.85 Forest ii Scrub Land 1540.80 2.99 iii Habitation 711.27 1.38 iv Fallow Land 4080.33 7.92 v Forest 32326.38 62.74 vi Water 1609.38 3.12 Bodies/River Total 51528.42 100
9 Details of the land for any There is no land required for dump outside the lease area. overburden dumps outside the mine lease, such as extent of land area, distance from mine lease, its land use, R&R issues, if any, should be given. 10 A Certificate from the Competent There is no involvement of forest land in the lease area. Authority in the State Forest Department should be provided, confirming the involvement of forest land, if any, in the project area. In the event of any contrary claim by the Project Proponent regarding the status of forests, the site may be inspected by the State Forest Department along with the Regional Office of the Ministry to ascertain the status of forests, based on which, the Certificate in this regard as mentioned above be issued. In all such cases, it would be desirable for representative of the State Forest Department to assist the Expert Appraisal Committees. 11 Status of forestry clearance for the No forest clearance required. broken up area and virgin forestland involved in the Project including deposition of net present value (NPV) and compensatory afforestation (CA) should be indicated. A copy of the forestry clearance should also be furnished. 12 Implementation status of There is no human settlement present within the lease recognition of forest rights under area so no Schedule tribes and other forest dwellers are the Scheduled Tribes and other present in lease area. Traditional Forest Dwellers 15 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
(Recognition of Forest Rights) Act, 2006 should be indicated. 13. The vegetation in the RF / PF No RF /PF are present in the study area. areas in the study area, with necessary details, Should be given. 14 A study shall be got done to ascertain the impact of the mining project on Wildlife of the study area and details furnished. Impact Impact Suggestive measure of the project on the wildlife in the Predicted surrounding and any other protected area and accordingly Disturbanc Noise produced due to vehicular detailed mitigative measures e to free movement for carrying materials will be required, should be worked out movement within permissible noise limit. with cost implications and / living of ones; submitted. wild fauna Care will be taken not to hunt viz. Birds, animals/birds by laborers; Reptiles If wild animals/birds are noticed etc. crossing the core zone, they will not be disturbed at all; Laborers will not be allowed to discard food, polythene waste etc., which can attract animals/birds near the core site;
Only low polluting vehicles having PUC will be allowed for carrying mining materials.
Noise level will be maintained within permissible limit Details are given in chapter-IV 15 Location of National parks, No National parks, Sanctuaries, Biosphere Reserves, Sanctuaries, Biosphere Reserves, Wildlife corridors, Tiger/Elephant reserves (existing as Wildlife corridors, Tiger/Elephant well as proposed), within 10 km of the applied mine lease. reserves (existing as well as proposed), if any, within 10 km of the mine lease should be clearly indicated, supported by a location map duly authenticated by Chief Wildlife Warden. Necessary clearance, as may be applicable to such projects due to proximity of the ecologically sensitive areas as mentioned above, should be obtained from the State Wildlife department/Chief Wildlife Warden under the Wildlife (Protection) Act, 1972 and copy furnished. 16 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
16 A detailed biological study for the Biological study of the study area [core zone & buffer zone study area [core zone & buffer (10 km radius of the periphery of the mine lease)] has zone (10 km radius of the been carried out by Ecology & Biodiversity Expert periphery of the mine lease)] shall be carried out. Details of flora & Details of flora and fauna of core & buffer zone are given fauna, duly authenticated, in Chapter III, of EIA-EMP Report. separately for core and buffer zone should be furnished based on During the survey no fauna of Schedule – I has been found such primary field survey, clearly in core zone as well as buffer zone. indicating the schedule of the fauna present. In case of any scheduled-I fauna found in the study area, the necessary plan for their conversion should be prepared in consultation with State Forest and Wildlife Deptt. and details furnished. Necessary allocation of funds for implementing the same should be made as part of the project cost. 17 Proximity to Areas declared as No Critically Polluted areas as notified by the Central ‘Critically Polluted’ or the Project Pollution Control board are located within 10 km radius areas likely to come under the from the boundary of applied mining lease area. The ‘Aravali Range’, (attracting court mining lease area does not fall under ‘Aravali Range’. restrictions for mining Certificate in this regards is under process operations), should also be indicated and where so required, clearance certifications from the prescribed Authorities, such as the SPCB or State Mining Dept. Should be secured and furnished to the effect that the proposed mining activities could be considered. 18 Similarly, for coastal Projects, A The proposed mining project does not fall under CRZ. CRZ map duly authenticated by one of the authorized agencies demarcating LTL. HTL, CRZ area, location of the mine lease w.r.t CRZ, coastal features such as mangroves, if any, should be furnished. (Note: The Mining Projects falling under CRZ would also need to obtain approval of the concerned Coastal Zone
Management Authority). 19 R&R Plan/compensation details There will be no displacement of people. So no R & R plan for the Project Affected People is not required.
17 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
(PAP) should be furnished. While preparing the R&R Plan, the relevant State/National Rehabilitation & Resettlement Policy should be kept in view. In respect of SCs /STs and other weaker sections of the society in the study area, a need based sample survey, family-wise, should be undertaken to assess their requirements, and action programmes prepared and submitted accordingly, integrating the sectoral programmes of line departments of the State Government. It may be clearly brought out whether the village located in the mine lease area will be shifted or not. The issues relating to shifting of Village including their R&R and socio economic aspects should be discussed in the report. 20 One season (non-monsoon) One season (non-monsoon) primary baseline data on primary baseline data on ambient ambient air quality (PM10, PM2.5 SO2 and NOx), water air quality (PM10, SO2 and NOx), quality, noise level, soil and flora and fauna has been water quality, noise level, soil and collected during post monsoon season (Dec. 2014 to Feb- flora and fauna shall be collected 2015) and the AAQ and other data are compiled in the EIA and the AAQ and other data so and EMP report. complied presented date-wise in the EIA and EMP report. Site The details of ambient air quality are given in Chapter III, specific meteorological data from Page No. 63 to 64of EIA-EMP Report. should also be collected. The location of the monitoring stations Site specific meteorological are given in Chapter III of EIA- should be such as to represent EMP Report. whole of the study area and justified keeping in view the re- One monitoring station set within 500 m of the mine lease dominant downwind direction and in the pre-dominant downwind direction. location of sensitive receptors. Refer Fig. 3.11 in EIA-EMP Report. There should be at least one monitoring station within 500 m The mineralogical composition of PM10 for free silica of the mine lease in the pre- given in Chapter III of EIA-EMP Report. dominant downwind direction. The mineralogical composition of PM10 particularly for free silica should be given. 21 Air quality modeling should be ISCST3 version: Perpetual Dispersion model, based on carried out for prediction of steady state Gaussian plume dispersion, was used for the impact of the project on the air prediction of ground level concentrations. Detail is given quality of the area. It should also in Chapter –IV
18 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
take in to account the impact of movement of vehicles for transportation of mineral. The details of the model used and the input parameters used for modeling should be provided. The Air quality contours may be shown on the location map clearly indicating the location of site, location of sensitive receptors, if any, and habitation. The wind roses showing pre-dominant wind direction may also be indicated on the map. 22 The water requirement for the The total water requirement for the project is estimated project, its availability and source 12 KLD. Water for mining operation (dust suppression) should be furnished. A detailed and for domestic & drinking purpose will be fulfill from water balance should also be dug wells and tankers. provided. Fresh water Water KLD requirement for the project should requirement be indicated. Dust Suppression 5.5 Drinking 2.0 Green belt 4.5 Total 12.0
23 Necessary clearance from the Water will be sourced from dug well/tube well nearby Competent Authority for drawl village and water tankers so no clearance is required. of requisite quantity of water for the project should be provided. 24 Description of water conservation Water conservation measures proposed to be adopted are measures proposed to be adopted as given below:- in the Project should be given. Optimum utilization avoiding unnecessary wastage of Details of rainwater harvesting water will be done. proposed in the Project, if any, Awareness programs will be taken up to educate public for should be provided. conservation of water.
25 Impact of the project on the water Mining will be done above the water table so no ground quality, both surface and water will be affected. Garland drain will be constructed groundwater should be assesses around the pit & Dump. Details of necessary safe guard is and necessary safeguard given in Chapter-IV measures, if any required, should be provided.
26 Based on actual monitored data, it No ground water will be intersecting during course of may clearly be shown whether mining as ultimate depth of mining will be 240 mRL & and working will intersect water table of area is 235 mRL ground water. groundwater. Necessary data and documentation in this regard may Permission from CGWB is not required as no ground be provided. In case the case water intersect during course of Sand. working will intersect groundwater table, a detailed 19 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Hydro geological study should be undertaken and report furnished. Necessary permission from Central Ground Water Authority for working below ground water and for pumping of ground water should also be obtained and copy furnished. 27 Details of any stream, seasonal or No proposal for modification/ diversion of any stream or otherwise, passing through the otherwise. lease area and modification / The drainage pattern of the study area is given in Chapter diversion proposed, if any, and the III, of EIA-EMP Report. impact of the same on the hydrology should be brought out. 28 Information on site elevation, Schematic Representation of Site Elevation, Ultimate working depth, groundwater table Depth & Ground etc. should be provided both in AMSL and bgl. A schematic HIGHEST CONTOUR diagram should also be provided 440 mRL LOWEST CONTOUR for the same. 265 mRL (0 BGL)
ULTIMATE DEPTH 240 mRL (25m BGL)
WATER TABLE 235 mRL (30 m BGL)
Proposed working will not intersect Ground water table. 29 A time bound Progressive Progressive Greenbelt Development is given in Chapter IX Greenbelt Development Plan shall of EIA/EMP report be prepared in a tabular form (indicating the linear and quantitative coverage, plant LIST OF PLANT SPECIES FOR GREEN BELT species and time frame) and DEVELOPMENT submitted, keeping in mind, the same will have to be executed up 1 Haldu front on commencement of the 2 Siris project 3 Simul 4 Kadam 5 Neem 6 Aam
30 Impact on local transport Mineral will stack in mineral stack yard within the lease infrastructure due to the project area material will be transport as per requirement so not should be indicated. Projected much impact is anticipated on traffic. increase in truck traffic as result of the project in the present road network (including those outside the project area) should be
20 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
worked out, indicating whether it is capable of handling the incremental load. Arrangement for improving the infrastructure, if contemplated (including action to be taken by other agencies such as State Government) should be covered. 31 Details of the onsite shelter and Onsite shelter and facilities will be provided to the mine facilities to be provided to the workers as per Approved Mining Plan & as per Mines mine workers should be included Rules. in the EIA report. Following are the infrastructural facilities which will be provided to the workers:
-Rest Shelter, Washrooms separately for male & female workers, sanitary facility, first aid facilities, etc.
- Personal protective equipment as ear muffs, gloves etc. will be provided to the workers 32 Conceptual post mining land use Land use of the core zone at conceptual stage is given in and Reclamation and Restoration Chapter –III , conceptual plans and sections are given in of mined out areas (with plans and EIA reports. with adequate number of sections) About 50.0Ha areas will be planted in which 6.58 ha on should be given in the EIA report. barren land/ ML boundary, 23.42 ha at road side and 20.00 ha. On Dump area at the end of mine life.
33. A time bound Progressive Progressive Greenbelt Development is given in Chapter IX Greenbelt Development Plan shall of EIA/EMP report be prepared in a tabular form (indicating the linear and quantitative coverage, plant species and time frame) and
submitted, keeping in mind, the same will have to be executed up front on commencement of the LIST OF PLANT SPECIES FOR GREEN BELT project. Phase wise plan of plantation and compensatory of DEVELOPMENT afforestation should be charted 1 Haldu clearly indicating the area to be covered under plantation and the 2 Siris species to be planted. The details 3 Simul of plantation already done should 4 Kadam be given. 5 Neem 6 Aam
34 Occupational health impact of the Safety of workers during mining operation and project should be anticipated and maintenance of transportation vehicles will be taken the proposed preventive measures care as per MMR 1961. To avoid any adverse effect on spelt out in details. Details of pre- the health of workers due to dust, noise sufficient placement medical examination measures will be provided. and periodical medical 21 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
examination schedules should be Anticipated incorporated in the EMP. Occupational Proposed mitigation measures Health & Safety Impacts Lung diseases- Dust mask will be provided to workers. and - Precaution will be adopted to prevent Respiratory dust generation at site and dispersing in disorder due the environment. to dust- Regular health monitoring of workers. exposure - Training & awareness camps will be conducted for workers on health problems. - Air emission control system such as water sprinkling, green belt development. - Free silica analysis of mineral will be done. - Budget of pollution control Rs. 3.0 lacs. I.e. dust suppression by water sprinkling is proposed in EMP. Noise - Ear muffs will be provided. - Good Maintenance of vehicles. Accident at- PPE will be provided to workers likely site hand gloves, safety shoes etc. Others - Awareness program/ training programme will be organized for workers for occupational safety. - Smoking & tobacco will be banned at site.
All periodic medical examination of the mine workers will be done regularly. - Pre-placement & periodically medical examination will be conducted as per mines rule 29 B of 1955. - Pre-placement health checkup will be made mandatory and periodic health checkup will be done. - Medical records of each employee will be maintained separately and will be updated as required. - Medical examination of workers including chest x- ray of employee will be undertaken. - 35 Public health implications of the The most common diseases in this region are common Project and related activities for cold and cough, malaria, enteric fever like typhoid. the population in the impact zone should be systematically evaluated In this proposed project, impact on the health of public and the proposed remedial has been assessed and the remedial measures have been measures should be detailed along proposed by the lessee. At the primary basis provision of with budgetary allocations. first aid has been adopted.
22 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Adverse health impact will be due to air pollution, noise pollution etc. All control measures for air emissions, noise control will be taken to strictly comply with norms. Periodical free health camps will be taken up in the villages.
Measures: - - Tractor trolley will be covered by tarpaulin covers to control the air pollution. - Catalyze combustion fitted with tractor trolley and silencers to air pollution. - All transportation vehicles carry a valid PUC Certificates to noise pollution. - Minimum use of horns and speed limit of 10 km/hr in the village area to noise pollution.
36 Measures of socio economic The mining activity in this area will have positive impact significance and influence to the on social economic condition of the area by way of local community proposed to be providing employment to the local in-habitats. provided by project proponent Wages paid to them will increase the per capital income, should be indicated. As far as housing, education, medical and transportation facilities, possible, quantitative dimension economic status health and agriculture. may be given with time frame for In order to further improve the socio economic conditions implementation. of the area, the management will contribute for development in consultation with local bodies. Thus project will have positive impact on the surrounding local community. CSR in area
The lessee proposed to do following social up-liftment in mining Lease area contributes Rs. 8.00 Lacs for each year
Details are given in Chapter-IV
37 Detailed environmental Particulars Details management plan to mitigate the Air Loading Water sprinkling will be environmental impact which, Quality done before loading by should inter-alia include the Manage making it moist. impacts of change of land use, loss ment Transport Water sprinkling during of agricultural and grazing land, if ation transportation over any, occupational health impacts approach roads will be besides other impacts pacific to done for suppression of the proposed project. dust. Regular maintenance of machinery will be carried out. Overloading will be prevented. Tractor trolley will be
23 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
covered by tarpaulin covers. Plantation Plantation will be carried out at the approach road, Monitorin Periodic air quality g monitoring will be done and adequate measures will be taken. Noise Transport Source of noise will be Manage ation during operation of ment transportation vehicles, for this proper maintenance will be done at regular intervals. Oiling & greasing at regular interval will be done. Adequate silencers will be provided in all the diesel engines of vehicles. Minimum use of horns and speed limit of 10 km/hr. in the village area. Its will be ensured that all transportation vehicles carry a valid PUC Certificates. Plantation Plantation will be carried out at the approach road Monitorin Periodic noise quality g monitoring will be done and adequate measures will be taken. Water Surface Waste water will not be Quality water generated during manage quality removal/ collection of ment mgt. sand. Ground Ground water will not be water intersected during quality mining activities. managem ent Waste Waste water will not be water generated during managem mining. ent Washrooms will be 24 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
made available ,Septic tanks and soak pits will be provided for the disposal of domestic/ washrooms effluents. Solid Waste Generated waste will be Management dumped at ear marked site. Environment Management plan is given in Chapter IX of EIA-EMP Report. 38 Public hearing points raised and Public hearing will be commenced. commitment of the project proponent on the same along with time bound action plan to implement the same should be provided and also incorporated in the final EIA/EMP report of the project. 39 Details of litigation pending There is no litigation pending against the project. against the project, if any, with direction /order passed by any Court of Law against the project should be given. 40 The cost of the project (capital Capital cost of project – 13 caror cost and recurring cost) as well as Capital cost of EMP –60 lacs the cost towards implementation Recurring cost of EMP – 11.0 lacs of EMP should clearly be spelt out.
======*******======
25 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – II PROJECT DESCRIPTION
2.1 TYPE OF PROJECT: The proposed project is for mining of limestone at near village Umrangshu. It is proposed to produce 2.0 million TPA (ROM) of limestone from area of 430.0 ha. By opencast mechanised method of mining. 2.2 NEED FOR THE PROJECT & ITS IMPORTANCE TO COUNTRY:
The basic objective of the project is to make effective utilization of material in the country or region. The Mineral produced at the mine will be sold to prospective buyers in the area. Limestone mining will help in the economic growth of the country or region and provides direct and indirect employment to local people. 2.3 LOCATION OF APPLIED AREA The applied area is situated near village –Umrangshu, Tehsil– Umrangshu, District- Dima Hasao (N. C. Hills) (Assam) The area is about 9.0 km from nearby village Umrangshu. The applied area falls on survey of India Toposheet No. 45M/14 & 83C/14 and is situated between: Latitude N Longitude E 25°32'45.44"N to 25°34'25.26"N 92°46'35.14"E to 92°47'44.70"E (Refer figure: 2.1 and 2.2 Location map and Key Plan)
26 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 2.1: LOCATION MAP
27 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 2.2: KEY PLAN OF THE APPLIED AREA
28 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 2.3: GOOGLE IMAGE OF THEAPPLIED APPLIED AREA WITH BOUNDARY PILLARS.
29 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
2.4 Size or magnitude of operation: It is proposed to produce 2.0 million TPA limestone from 430.0 ha. 2.4.1 Regional geology:
The thick pile of Eocene sediments starting from Basal sandstone Formation (Equivalent to Cherra Sandstone Formation) to Kopili Formation of the Jaintia Group is exposed in the Garampani-Umrangshu area over the Precambrian basement. Towards south-east, the Jaintia are conformably overlain by the litho units of the Barali Group. The Basal Sandstone Formation occupies its position just above the Pre-cambrian basement and exposed intermittently from near Panimur to Kopili – Kharkar confluence covering a distance of about 40 km. The litho units of formation are well exposed near Eili Falls and Panimur-Lanka areas. The limestone deposit of the area belongs to Sylhet-Limestone Formation of Jaintia Group. It occupies a large tract and exposed intermittently in NW-SW direction. The best section of this formation is exposed along the Amrang valley of Juiphar block. However, the major portion of the area covered by the alternating sequence of shale and sandstone of Kopili Formation. The lower most position of the Kopili formation is calcareous, the middle portion is argillaceous in nature. The litho units of the formation are found in a continuous sequence at places. The contact between the formation are either gradational or sharp. The general stratigraphic sequence of the area is as given below:
Group Formation Lithological units Jaintia Kopili Shale & Alternation of splintery shale and fine to (Eocene) Sandstone medium grained brownish sandstone , with occasional bands of calcareous shale.
Sylhet Thick limestone, fossiliferous, hard , Limestone well bedded with occasional partings Formation and bands of shale. Basal sandstone White, massive, hard sandstone with impersistent coal seam Jurassic Volcanic Rock Highly weathered trap Pre- Cam Basement Granite and various gneissic rocks crystalline
30 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
The traps and Pre-cambrian has very few exposures. Highly weathered traps exposed along the Lumdingnala and the pre-cambrians are explored along the Khandong ridge and at the dam site of the Kopili Hydel Project, west of the lime stone deposit.
Kopili shale and sandstones normally cap the limestone. The main exposure seen in The Umrongshu valley , which is a faulted block entirely , formed of kopili shale and sandstone . Other good outcrops are seen at many place along Umrongshu –Lanka road .
2.4.2Local geology of lease area(For surface geological plan & section refer plate no. III)
The investigated area is confined to an area of 6.5 sq.km. from near 7th to 12th km. post from Umrongsho and along southern of Umrongsho – Lanka road within the area, the Sylhet limestone formation attains a thickness of about 77 m. Overlain by Kopili Formation. It has been observed that the Lang-Kree nala is flowing just along the contact of sylhet limestone and Basal sandstone Formation. LOCAL STRATIGRAPHIC SEQUENCE Group Formation Lithological units Thickness Jantia (Eocene) Kopili Shale & Alteration of 0-6m Sandstone splintery shale and medium to fine grained variegated coloured sandstone current bedded and sometime laminated. Sylhet Limestone Top Band 28.5m Formation limestone, Top 3.0 to 5.0 ferruginous limestone with fossils mainly nummulites. Rest of the thickness is grey limestone fossiliferous and partly shaly at places. Intermediate shale Grey, splintery 5.0 – 6.0 m sticky and persistent shale Bottom Band Grey, hard and 49.0 m
31 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
limestone compact fossiliferous limestone, Basal sandstone Sandstone with Not Known carbonaceous shale
Description of the rocks units within the applied area:
Kopili Sandstone & Shale: The Kopili formation forms the upper most unit of the Jaintia Group and is composed of alternation of gray to brown splintery shale and yellowish brown sandstone. Thin bands of calcareous shale and impure limestone are also seen at places. This formation is encountered in 11 bore holes i.e. 1, 4, 8, 9, 10, 11, 12, 13, 15, 16 & 26.two boreholes. The sandstone is medium to fine grained well sorted, whitish to brown in colour. It is soft and sometime friable. The shale is dark gray to brownish in colour and splintery in nature
Sylhet Limestone: (Upper Band Limestone); The upper limestone band shows an average thickness of 28.00 m. This band has been encountered in 22 bore holes . Top 3.0 to 5.0 m is ferrugineous and red in colour. The colour gradually changes from dirty grey to fresh grey orientation of fossils in a definite direction and low to heavy concentration of fossils at certain horizons is the peculiar characteristics of this ferrugineous limestone. Calcite crystallization along the fractured planes are common. Towards the bottom of the colour of the limestone varies from light grey to buff and then gradually to grey. Fossil mainly nummulites) contents also varies a different vertical sections. CaO content seems to increase towards bottom of this band.
Chemical analysis of this band shows high percentage of R2O3 and low percentage of CaO.
Intermediate Shale : The top band and bottom band limestone are separated by a thin but persistent shale band, thickness of which varies from 5.0 to 6.0 m. This shale has been encountered in all the boreholes except in two boreholes, the shale band might have been missed as they are located at lower levels then the shale band. The shale is dark gray in color with occasional thin shally limestone band.
Lower Band Limestone: In general immediately below the intermediate shale band the bottom band limestone is
32 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
encountered in almost all the boreholes of the area. The contact is observed to be gradational one the average thickness of this band is 48 meters. Limestone of this band is grey to dark grey in colour and less fossiliferous. In contrast to the upper band limestone,
this limestone band shows low percentage of R2O3 and high CaO. The bottom most (about 22.0 m) portion is , however, more rich in CaO. This band can be classified in to three recognizable sub horizons as stated below: (a) Top dirty grey to gray limestone with shale intercalation. (b) Middle gray to high gray massive and compact limestone. (c) Lower gray limestone with sandy limestone band.
Basal Sandstone : The Basal sandstone formation lying un-conformably over the pre –Cambrian , is mainly made up of whitish to pale brown sandstone, medium to fine grained, slighty quartzitic with occasional presence of carbonaceous shales and thin coal seams. It makes its presence along Amrangnala.
33 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
2.4.3Reserves estimation: Reserves of the limestone under Indicated Mineral Resources category is taken into consideration for calculation of the mineable reserve has been calculated graphically. Reserves blocked under 7.5m barrier zone and UPL have been calculated by surface area method.
Lower Band Limestone:
RESERVES REMAINNG RESOURCES (in tonnes) (in tonnes) Economic (Mineable) Potentially Economic( Non-mineable) Intrinsically Quantity Non- Total Constraints wise Break up of Economic (Mineable) (in-situ mineable Quantity quantities Reserves (in-situ) Proved 196,591,256 Pre- 7,332,5801 28,282,363 Ultimate pit limit Remaining (122) Feasibility 1,133,332 Lease Measured Mineral barrier/statutory Resources Resources pillars in U/G (332) (222) workings Non Non-diverted forest Forest land land Permanent Infrastructure like Road, power lines, Low grade part Non beneficiable part 43,910,106 Others ( On either side of Nallah)
34 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
PRESENTATION OF MINERAL LIMESTONE RESOURCES (T) AS PER UNFC
CATEGORY CODE Lower Band Upper Band Limestone Limestone Tonnes Grade Tonnes Grade Total (A+B) 269,917,057 CaO = CaO = Resources 39.75 28.89 Reserves Proved (111) % MgO %, (A) Probable (121) = MgO = (122) 196,591,256 1.95% 2.21% Remaining Feasibility Mineral (211) Resources resources (B) Pre-Feasibility (221) Mineral resources (222) 73,325,801 Remaining (331) Measured Mineral Resources Remaining (332) 48,782,769 Indicated Mineral Resources Inferred Mineral (333) 71,119,576 51,135,238 Resources Reconnaissance (334) Mineral Resources
2.4.5 Life of mine: Total mineable reserves = 196,591,256 tonnes. Proposed production = 2.0 million tonnes Life of mine = 98 years.
35 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
2.4.6 Associated activities required by or for the project: Proposed site facility:- At present there is no site service available in the applied area. Following facilities are proposed to be installed and maintained. 1. Office; A mine office with required furniture and facilities will be constructed. 2. First Aid Room: A First Aid room as per the provision of Rule 43 of Mines Rules 1955 will be maintained under the charge of qualified medical practitioner. Equipment shall be provided as per second schedule of Mines Rules. 3. Rest Shelter: Rest shelter as required under Rule 62 of MR 1955 shall be constructed and maintained. 4. Canteen; Canteen as required under rule 64 of MR 12955 shall be constructed and maintained. 5. Toilets: Sufficient number of toilets shall be provided as per Mines Rules 1955. 6. Drinking water; A water cooler shall be installed and maintained. 7. Workshop; Workshop with all the facility required for maintenance of equipment will be constructed and maintained. 2.5 Technology and process description Requirement of Machinery
Operating Parameters No. of working Days 300 No. of Shifts per day 2 Total Rock handling in cu. m. In-situ ( Max in 3rd Year) 1344898 Total Rock handling in cu. m. In-situ per day 4483 Total ROM + Waste in cu. m. 4483 ROM per shift in cu. m. 2242
Proposed mining method: -
Salient features to work the mine by mechanized open cast method of mining. Height of bench will be maintained at 8.0 m. Slope of bench will be 800 from horizontal. Bench width will be 18-25 m. Approach road to have gradient of 1:16. Drilling of holes will be with compressed air operated Wagon drill. Hole diameter will be 110-115 mm and 10% sub grade drilling. ii) Layout of Mine working, faces and disposal of OB/waste:
36 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
(Refer Plant no 5A & B, Five year dev. Plan & sections) Faces will be opened in central part of area and will advance in East & North direction, as shown on the plan. Year wise description is given above .upper bench will be kept sufficiently advanced for safe working of lower benched. Waste will be dumped in the south-west corner of the applied area.
TABLE 2.1: TENTATIVE EXCAVATION DURING FIRST FIVE YEARS IN TERMS OF TONNES
Year Total Top OB/ SB/ ROM cu.m. RoM in ROM / tentative Soil IB tonnes waste Excavation in in cu.m. Ratio in cu.m. cu.m. Ore Mineral Cum:Cum Ratio Reject cu.m. cu.m. I 1270939 00 1001707 269232 00 700003 1:3.72 II 1275838 00 948862 326976 00 850137 1:2.90 III 1344898 00 998738 346160 00 900016 1:2.89 IV 1279280 00 836962 442312 00 1150011 1:1.89 V 1340560 00 571168 769392 00 2000419 1:0.74 Total 6511515 00 4357437 2154072 00 5600586 1:2.02
Waste & Topsoil The deposit is exposed on the surface and stratified. The Kopili formation forms upper most unit of the Jaintia Group and is composed of alternation of gray to brown splintery shale and yellowish brown sandstone with loose nodules of ferruginous sandstone. The overburden consists of shale and sandstone. Year Top soil Mineral rejects in cu.m. Reuse/ Storage Backfilling Storage Blending Beneficiation spreading I Nil Nil Nil 1001707 Nil Nil Ii Nil Nil Nil 948862 Nil Nil III Nil Nil Nil 998738 Nil Nil IV Nil Nil Nil 836968 Nil Nil V Nil Nil Nil 571168 Nil Nil 4357443
Method of disposal of waste
During first year of mining development work will comprise of a) Development of approach road to pit and dump yard.
37 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
b) Stone retaining wall around the proposed dump site . c) Garland drain around proposed dump site. e) Garland drain on pit top side. f) Check dams.
TABLE 2.2: MACHINERY DEPLOYED. Sl. Machinery Units Total HP Capacity No. 1. BE450LC Excavator 4 320 2.76 m3 2. Rock Drill Wagon, Atlas Copco BVB 3 354 cfm 105-130 mm 25-10 DTH with COP 42 dia. 3. BH 40 – BEML 18 455 H.P 24 m3 4. BEML – BD40 Crawler Dozer 01 180 5 Water Tanker, WS 28 KL 01 260 20 KL 6. Road Roller 01 82.5 7. Compressor CM-341 03 XAH210 445 cfm @150 psi 8. Motor Grader BG 825 01 280 Blade 4928 mm 9. ANFO Mixer 01 10. Jeep 02 11. Maint. Van with necessary 01 equipments 12. Explosive Van ( Common with other leases) 13. Communication Equipment 01 set 14. Lights as required 15. Office equipments
38 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 2.3: EMPLOYMENT DETAIL S.No. PARTICULARS NUMBER 1. Managerial and Supervisory personel Mines Manager (As per MMR,1961) 1 Mining Engineer (As per MCDR, 1988) Full Time 1 Mining Geologist(As per MCDR, 1988) Full time 1 Asstt. Mines Manager 2 Mining Mate/Supervisor 2 Mechanical Engineer 1 Environment Engineer 1 Total 9 2. Skilled: Excavator operator 4 Tipper operator 20
Mechanic 1
Electrician 1
Blaster 1
Drill m/c operator 3
Driver Dozer 1
Driver Water Tanker 1
Driver Jeep 1
3. Semi- skilled: Helpers 15 Clerk-cum-store keeper 1 Total 5 21
4. Un-Skilled: 2 Total 65
39 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER-III
DESCRIPTION OF THE ENVIRONMENT
3.1 STUDY AREA: For the purpose of studying the baseline status of the environment, core zone and buffer zone are considered for Impact Assessment. The core area for the purpose comprising mining applied area & the buffer zone comprising a 10 km radius around core area. This chapter contains a description of the existing base line environmental status of the area surrounding mining applied area the data collected has been defined the environmental scenario of the area. The baseline environmental monitoring was carried out during winter season of year 2014-15 (December 2014 to February 2015)
3.1.2 ENVIRONMENTAL COMPONENTS: The various environmental components, which are thoroughly studied during the study period, include: Land Environment Water Environment Air Environment Noise Environment Biological Environment Socio- Economic Environment 3.1.3 METHODOLOGY The methodology for collection of baseline data for different environmental component is based on the MoEF & CC and CPCB guidelines. The baseline information on micro meteorology, ambient air quality, water quality, noise levels, soil quality and floristic descriptions was collected by primary sampling / field studies during study period by Udaipur Min-tech Pvt. Ltd.(NABL Accredited lab) However secondary data have been obtained from government agencies and other published sources.
3.2 ESTABLISHMENT OF BASELINE FOR VALUED ENVIRONMENT COMPONENT (A) LAND ENVIRONMENT Land Use Pattern of Study Area
The land of the study area is divided into different categories.
40 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Open Scrub Land Mine Area Crop Land Fallow Land Scrub Land Scrub Forest Habitation Industrial Water Bodies
Data Input
IRS-P6, resource rat -1, LISS-III Multispectral digital TCC (true Colour Composite) data from NRSC Bhuwan Portal has been used for preparation of Land use/ Land cover thematic map of study area. Project site mine plan map & Google maps and Toposheet has been used as a reference map for preparation of base layer map like road, rail network, project site boundary, build-up land water bodies, forest etc.
Technical Details
Satellite Image IRS LISS-III, IRS-P6, resource rat -1, LISS-III
Band Combination 3,2,1
DIP Software ERDAS Imagine 9.2
GIS Software Arc GIS 10.1
Methodology
Land use / Land cover map preparation, Base map creation; and Geometric correction of satellite image has been processed using ERDAS Imagine 9.2 Software.
The methodology used for Land use pattern of study area is explained in following headings.
Geo-referencing of Topographical base (topo sheet)
SOI Toposheet has been geo-referenced in geographic lat/long coordinate system using Arc GIS 10.1 Software.
41 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Base Map Layer Creation
Project site mine map & Google maps and geo-referenced Toposheet has used as a reference map for base layer creation. In base layer linear, polygon and point feature like road, rail, canal, village location and project site have been created in vector data format. Base map layer information has been used for analysis of surrounding feature like road, rail, and village location near project site activity through superimposed on thematic map for data integration.
TABLE 3.1: LAND USE PATTERN BASED ON SATELLITE IMAGE
S. No. Class Names Area (Ha.) % (Area) i Open Degraded Forest 112260.26 21.85 ii Scrub Land 1540.80 2.99 iii Habitation 711.27 1.38 iv Fallow Land 4080.33 7.92 v Forest 32326.38 62.74 vi Water Bodies/River 1609.38 3.12 Total 51528.42 100
42 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE3.1 LAND USE / LAND COVER MAP PATTERN OF THE STUDY
43 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 3.2: SATELLITE IMAGE OF 10 KM RADIUS OF THE STUDY AREA
44 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Interpretation of Satellite Image
Hybrid technique has been used i.e. visual interpretation and digital image processing for identification of different land use and vegetation cover classes based on spectral signature of geographic feature. Spectral signature represents various land use class. Image interpretation keys are developed, based on image characteristics like color, tone, size, shape, texture, pattern, shadow, association etc, which enables interpretation of satellite images for ground feature.
For validation of Land Use Plan Ground truth data on geographic features of the study area has been collected by site visit to the area for verification of information of the different doubtful features of the study areas, which were found to be responsible for the occurrence of specific spectral reflectance behavioural patterns. Ground truth data has been carried out for verification of the ground features (esp. one in doubt) interpretation accuracy and reliability of remotely sensed data.
Conclusion
All vector layer superimposed on land use land cover map for final map composition and used for analysis and study of area.
Agricultural Yield of the Study Area
Agricultural practice is the main source of income of the study area.
The major field crops grown are Soyabean, Maize, Coriander, Wheat, Rapeseed, Mustard, Urd, Gram etc.
Horticulture crops – Orange, Mango, Guava, Lime, Papaya etc.
Horticulture crops vegetable – Cauliflower, Garlic, Onion, Brinjal, Tomato,
Medicinal and Aromatic crops – Ashwagandha, Rose,
Fodder crops Chari Jawar, Chari Maize, Lucerne, Berseem etc.
45 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
(b) Land use of lease area (Core Zone) The detail of present land use of the applied area and proposed utilization for different purpose of mining during operational and post operational phase is given in the table below. TABLE 3.2: LAND USE PLAN FOR PRE- OPERATIONAL, OPERATIONAL & POST - OPERATIONAL PHASES (IN HECT.)
PARTICLUARS PRE- OPERATIONAL POST - OPERATIONAL (area in hect.), OPERATIONAL (area in hect.), PHASES*(at the end of lease period) (area in hect.), Pits 0.0 21.80 177.46 Dump 0.0 7.24 17.00 Road/ 1.74 2.50 3.00 Building 0.00 5.50 5.50 Plantation 0.00 7.50 30.00 Mineral Stack 0.00 3.00 3.00 Remaining land 428.26 382.46 194.04 Total Area 430.00 430.00 430.00 About 50.0Ha areas will be planted in which 6.58 ha on barren land/ ML boundary, 23.42 ha at road side and 20.00 ha. On Dump area at the end of mine life.
(c) Topography& Drainage The area is characterized by steep-slopped hill ranges divided by narrow sharp nallas. The altitude ranges from 300 m at Langkru nalla bed to 500 m. on the hill top near Langmaklo village above mean sea level. The topographical features on the area is mainly controlled by the characters of the litho units and pre-existing spring system of the topmost Kopili Formation. The Langkru river-let a tributary to the Kopili river is the main stream which has controlled the drainage system of the area. The drainage system is consequent one.
46 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 3.3: TOPOGRAPHY MAP OF THE STUDY AREA
47 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 3.4: DRAINAGE MAP OF THE STUDY AREA
48 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Methodology for soil monitoring
Soil samples from depth (0-15 cm) were collected from different sites in the study area for estimation of the physicochemical characteristics of soil. Air-dried and Sieved samples have been used for determination of physical properties of soil. Standard methods were followed for the analysis of soil samples. Soil sampling location is given in the table below. TABLE 3.3: SOIL SAMPLING LOCATIONS IN THE STUDY AREA S. No. Station Code. Station Name 1 S1 Near Umrangshu 2 S2 Near Dithur 3 S3 Near Chota Larpheng 4 S4 Near Tungkhrang
49 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 3.5: SOIL SAMPLING LOCATIONS IN THE STUDY AREA
50 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Soil Analysis Results: TABLE 3.4: ANALYSIS RESULTS OF SOIL SAMPLES:
Parameters unit S1 S2 S3 S4 Test method pH (1:2.5) - 7.40 7.42 6.98 6.95 IS:2720 (P-26) 1987
Color - Brown Blackish Light Brown Soil & Solid waste brown Brown Analysis Manual
Texture - Sandy Sandy Sandy Loam Sandy IS: 2720 (Part-4) Loam Loam Loam 1985
Water % 27.53 28.01 25.96 27.3 Based on Lab SOP holding LP-32 S4 capacity
Potassium Kg/hect 207 218 191.9 272.8 Soil & Solid waste Analysis Manual- P.K.Behera
Nitrogen Kg/hect 264 352 281.6 396.6 Soil & Solid waste Analysis Manual- P.K.Behera
Bulk Density gm/cc 1.35 1.22 1.66 0.16 IS:2720 (Part-III): 1980
Organic % 1.2 1.6 1.28 1.68 IS:2720 (Part-22): Matter 1972
EC µmhos/c 143 180 160 140 IS:14767:2000 m
Source : Udaipur Min- Tech Pvt. Ltd. Results: The pH values of the Soil samples collected were in the range of 6.95 to 7.42 Organic matter in the range of 1.2(%) to 1.68 (%)
3.3WATER ENVIRONMENT Water availability and water quality are two major aspects considered for baseline. No water body exists within the applied area. No perennial nallah or river is found in the study area except the seasonal Mongle Nadi is 3.0 km in E direction, Langhen Nadi is 4.0 in S direction, Kopili River is 5.0 km in 51 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
NW direction, Langlai River is 11 km in S direction and Dithur Nadi is 12.5 is SE direction.
FIG 3.6 SCHEMATIC REPRESENTATION OF SITE ELEVATION, WORKING DEPTH & GROUND WATER
HIGHEST CONTOUR 440 mRL LOWEST CONTOUR 265mRL (0 bgl)
ULTIMATE DEPTH 240 mRL (25 bgl)
WATER TABLE 235 mRL (30 bgl)
Proposed working will not intersect Ground
water table.
Water consumption: Total water requirement in the mine will be about 12 KLD for drinking, spraying and plantation. Water will be available from nearby tube well. & tankers from nearby water supply.
TABLE 3.5 DAILY WATER REQUIREMENTS. SN Water requirement KLD 1. Dust Suppression 5.5 2. Drinking 02 3. Green belt 4.5 Total 12
FIG No-3.7 WATER BALANCE DIAGRAM
TOTAL WATER REQUIREMENT 12 KLD
4.10 KLD
Source - Tube well/Tankers
Drinking 2.0 KLD Dust Suppression Green belt 4.5 KLD 5.5 KLD
52 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Water monitoring methodology: Four ground water samples were collected during the winter season and characterized for physico-chemical parameters. The samples were taken as grab sample and were analysed for various parameters and compared with standards IS: 10500. The locations of water sampling stations are given in table below.
TABLE 3.6: LOCATION OF WATER SAMPLING IN THE STUDY AREA S. No. Station Code. Station Name 1 SW1 Umrangshu dam 2 GW1 Umrangshu village 3 GW2 Tungkhrang village 4 GW3 Dithur village
53 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 3.9: GROUND WATER SAMPLING LOCATIONS IN THE STUDY AREA
54 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd.
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Analysis Report of Ground Water Quality TABLE 3.7: ANALYSIS RESULTS OF GROUND WATER SAMPLES
Water sampling locations Parameter Unit In Absence of SW1 GW1 GW2 GW3 Alternate Source pH value -- 6.84 7.86 6.52 6.77 APHA-(22nd Edition) - 4500-H B:2012 Colour Hazen <5.0 <5.0 <5.0 <5.0 IS: 3025(P-4)1983 R- 2002 Turbidity NTU BDL BDL BDL BDL IS: 3025(P- 10) 1984 R-2002 (DL=1 NTU) Odour -- Agreeable Agreeable Agreeable Agreeable IS: 3025(P -5)1983 R- 2002 Total Hardness mg/l 124 160 84 48 IS: 3025(P-11)1983 R- (as CaCO3) 2002 Total Dissolved mg/l 164 220 240 100 APHA-(22nd Edition) - solids 2540-C:2012 Total Suspended mg/l 10 4.7 4 4.7 APHA-(22nd Edition) - Solid 2540-D:2012 Chlorides (as Cl) mg/l 8 12 20 14 APHA-(22nd Edition) - 4500-Cl E:2012 nd Sulphate (So4) mg/l 12.45 11.15 7.61 6.64 APHA-(22 Edition) – 4500-C E:2012 Iron (as Fe) mg/l 0.33 0.31 0.23 0.3 APHA-(22nd Edition) – 3500-C B:2012 Nitrate (as NO3) mg/l 2.81 2.56 3.61 3.99 IS: 3025(P-34)1988 R 1999
Fluoride (as F) mg/l 0.13 0.3 0.6 0.3 APHA 22nd ED. 2005- 4500D
Alkalinity mg/l 12 56 56 123 APHA-21st Ed 2005- 2320-B Dissolved Oxygen mg/l 9.1 - - - IS: 3025(P-38): 1989 E Coli APHA- 9213D/3a mg/l Absent - - - (22nd Edition) . 55 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assaam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Conclusion: It is observed that the pH of the ground water samples are range from 6.52 to 7.86 which is between the acceptable pH limit for drinking water. The concentration of Total dissolved solids (TDS) are in the range of 100 to 240 mg/l which falls in permissible category stipulated by Bureau of Indian standards. The desirable limit for total dissolved solids as per IS-10500 Standards is 500 mg/l whereas the permissible limit in absence of alternate source is 2000 mg/l. Total hardness of the ground water sample observed in the range of 48 to 160 mg/l as CaCO3. The desirable limit is 200 mg/l and permissible limit is 600 mg/l. Fluoride Concentration is between 0.13 to 0.6 mg/l. The desirable limit of 1 mg/l and permissible limit of 1.5 mg/l.
3.4 AMBIENT AIR ENVIRONMENT 3.4.1 Meteorology Meteorological factors such as wind speed, direction variation in temperature, humidity etc. play a direct role in dispersion of pollutants atmospheric pressure, rainfall and cloud cover also govern this activity. In order to establish the prevailing climatic condition, a meteorological monitoring station was installed in the study area during the study period. Based on the site meteorological information gathered during the monitoring period, wind rose diagram was generated to understand the prevailing wind direction so as to anticipate the dispersion of pollutants in the wind direction.
TABLE 3.8: MEAN TEMPERATURE & RELATIVE HUMIDITY Temperature Relative Wind Speed (km/hr.) (°C) Humidity (%) Month 8.30 HRS 17.30 HRS Max. Min. Max. Min. Max. Min. Max. Min. Dec., 13 27.8 8.4 100 65 08 03 -- -- Jan., 14 28.9 8.5 100 49 10 03 08 08 Feb., 14 34.3 9.8 100 42 08 02 05 05 Source – IMD Station (Silchar)
56 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 3.9: SITE SPECIFIC METEOROLOGICAL DATA Temperature Relative Wind Speed (km/hr.) (°C) Humidity (%) Month 8.30 HRS 17.30 HRS Max. Min. Max. Min. Max. Min. Max. Min. Dec., 13 28.3 8.8 100 65 09 03 07 02 Jan., 14 28.5 8.1 100 51 10 03 04 02 Feb., 14 34.5 9.7 100 43 06 02 05 02
57 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIG-9 WIND ROSE DIAGRAM
58 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Climatology The climate of the district of N.C. Hills is fairly diverse climate with an average annual precipitation of around 1500 mm to 2000 mm with average of 1673 mm and 40 to 90% relative humidity. The rainfall is mostly distributed between the months of July and September. About 90 percent of the annual rainfall is received during the period June to September, July and August being the rainiest months. The variation in annual rainfall from year to year is very large. During the North-East monsoon season, the relative humidity is generally over 90 percent. The coldest month is January and the hottest month is May. Ambient air quality monitoring Ambient air quality monitoring was carried out during the study period to establish the ambient air quality. Sampling was carried out with the help of Respirable particulate matter Sampler “Respirable Dust Sampler” (RDS). The data generated by M/s Udaipur Min-tech Pvt. Ltd. for ambient air quality status within 10 km. radius of the lease has been compiled along with meteorological conditions. 3.4.2 Location of Ambient Air Sampling Stations Sampling locations were established for ambient air monitoring in and around the core zone within a radius of 10.0 km, to study the present quality of the air. The monitoring locations are marked in the map presented as fig.3.12. Location of sampling points along with distance and direction with respect to lease are given as under:
TABLE 3.10: LOCATION OF AMBIENT AIR MONITORING STATIONS
S. No. Station Code. Station Name 1 A1 Project site 2 A2 Near Umrangshu village 3 A3 Chota Larpheng village 4 A4 Near kopili village 5 A5 Boro Tungkhrang village 6 A6 Dithur village
FIGURE 3.10: AMBIENT AIR SAMPLING LOCATION IN THE STUDY AREA
59 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3.4.3. Sampling Schedule
60 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Sampling was done 24/8 hourly from each station round the clock, twice a week for continuous three month (Study period). 3.4.4. Air quality parameter The following parameters were analysed for each sample.
- Particulate Matter (PM2.5)
- Particulate Matter (PM10)
- Sulphur dioxide (SO2)
- Nitrogen dioxide (NO2) The sampling and testing of ambient air quality parameters were carried out as per relevant parts of IS 5182. The brief details of testing method are given in below table. TABLE 3.11: PROCEDURE FOR DETERMINING VARIOUS AIR QUALITY PARAMETERS Parameters Testing method
PM2.5 Lab SOP UM-A-10
PM10 IS: 5182 (P-23) 2006 RA 2012
SO2 IS: 5182 (P-2) 2006 (DL=3μg/m3 )
NO2 IS: 5182 (P-6) 1975 RA 2006 The detailed results of ambient air quality are given in table below:
TABLE 3.12: AMBIENT AIR QUALITY RESULT Unit- µg/m3
61 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
1. Near Project site A1
Results S. No Test Parameters Units A-01 December-14 A-01 January-15 A-01 February-15 Min Max Avg Min Max Avg Min Max Avg 3 1. Particulate Matter (PM10) µg/m 45.77 56.59 51.68 46.10 58.24 52.18 49.6 60.04 54.82 3 2. Sulphur Dioxide (SO2) µg/m BDL 4.57 3.68 BDL 4.12 3.44 BDL 3.88 3.35 3 3. Nitrogen Oxides (as NO2) µg/m 3.11 5.76 4.78 3.11 5.62 4.62 3.08 5.20 4.07
2. Near Umrangshu Village A2
Results S. Test Parameters Units A-02 December-14 A-02 January-15 A-02 February-15 No Min Max Avg Min Max Avg Min Max Avg Particulate Matter µg/m3 1. 43.73 58.29 52.14 45.23 56.62 54.38 45.79 60.41 54.10 (PM10) 3 2. Sulphur Dioxide (SO2) µg/m BDL 4.71 3.39 BDL 3.91 3.34 BDL 3.42 3.15
3 3. Nitrogen Oxides (as NO2) µg/m 3.18 6.05 4.12 3.02 4.63 3.87 3.32 5.57 3.63
3. Near Chota Larpheng Village A3
S. Results N Test Parameters Units A-03 December-14 A-03 January-15 A-03 February-15 o Min Max Avg Min Max Avg Min Max Avg µg/m3 1. Particulate Matter (PM10) 40.17 57.51 49.34 43.46 56.87 50.67 46.65 58.06 51.27
3 2. Sulphur Dioxide (SO2) µg/m BDL 3.86 3.32 BDL 3.93 3.24 BDL 4.17 3.18
3 3. Nitrogen Oxides (as NO2) µg/m 3.14 5.81 4.17 3.07 4.84 3.78 3.13 4.74 3.49
4. Near Kopili Village A4 62 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Results S. No Test Parameters Units A-06 December-14 A-06 January-15 A-06 February-15 Min Max Avg Min Max Avg Min Max Avg Particulate Matter µg/m3 1. 43.06 59.35 55.28 42.57 61.55 56.74 50.8 63.36 58.81 (PM10) 3 2. Sulphur Dioxide (SO2) µg/m BDL 4.37 4.14 BDL 4.57 3.85 BDL 4.45 3.33 3 3. Nitrogen Oxides (as NO2) µg/m 3.12 6.41 5.42 3.06 6.17 5.67 3.77 6.85 4.82 5. Near Boro Tungkhrang Village A5
Results S. No Test Parameters Units A-05 December-14 A-05 January-15 A-05 February-15 Min Max Avg Min Max Avg Min Max Avg Particulate Matter µg/m3 1. 40.64 56.32 48.48 42.03 57.37 49.32 42.89 59.64 49.37 (PM10) Sulphur Dioxide (SO ) µg/m3 2. 2 BDL 5.52 4.23 BDL 5.43 3.64 BDL 6.21 3.55 Nitrogen Oxides (as NO ) µg/m3 3. 2 3.27 6.18 4.19 3.34 7.81 4.43 5.53 7.65 5.10
6. Near Dithur Village A6
Results S. No Test Parameters Units A-04 December-14 A-04 January-15 A-04 February-15 Min Max Avg Min Max Avg Min Max Avg Particulate Matter µg/m3 42.3 1. 54.06 48.20 46.19 59.13 52.75 46.10 56.44 51.27 (PM10) 3 3 2. Sulphur Dioxide (SO2) µg/m BDL 3.73 3.41 BDL 4.04 3.35 BDL 4.44 3.24 3 3. Nitrogen Oxides (as NO2) µg/m 3.25 6.18 5.43 3.23 5.79 4.26 3.27 5.06 4.18 Source: M/S Udaipur Min- Tech Pvt. Ltd.
The observed range of various parameters recorded, have been compared with the National Ambient Quality Standards laid down by the Central Pollution Control Board.
63 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3.4.5 Interpretation of Ambient Air quality.
PM10 level in the study area:
PM10 value recorded during the study period ranges between 40.17 µg/m3 to 63.36 µg/m3.
SO2 level in the study area: During study period, the concentration of sulphur dioxide recorded in ranges between BDL µg/m3 to 6.21 µg/m3
NO2 level in the study area: The concentration of nitrogen dioxide recorded in ranges between 3.02 to 7.81 µg/m3 Conclusion From the baseline monitoring result, it is observed that the monitored parameters
(PM10, PM2.5, SO2 & NO2) are within the permissible limits as per NAAQS, 2009 during the study period.
3.5 NOISE ENVIRONMENT The noise level monitoring in the study area was done at the ambient air environment monitoring locations. Monitoring was done as per the CPCB guideline. The noise monitoring results were compared with the Ambient Noise Quality Standard notified under Environment (Protection) Act, 1986.
3.5.1 Monitoring Methodology of Noise Level Noise standards have been designated for different types of land use, i.e. residential, commercial, industrial and silence zones, as per ‘The Noise Pollution (Regulation and Control) Rules, 2000, Notified by the Ministry of Environment and Forests, New Delhi on February 14, 2000’. Different standards have been stipulated during day time (6 am to 10 pm) and night time (10 pm to 6 am). The noise analysis within the study area was recorded using Lutron sound level meter. The noise rating method as Leq i.e. equivalent sound pressure level has been adopted for the measurement of noise level in various selected sampling locations
64 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
of this region. It is the energy means of the noise level over a specified period and is expressed in terms of decibels. 3.5.2 Location of noise monitoring stations The location of Noise level monitoring is presented in below table.
TABLE 3.13: LOCATION OF NOISE MONITORING STATIONS
S. No. Station Code. Station Name 1 N1 Project site 2 N2 Umrangshu village 3 N3 Chota Larpheng village 4 N4 Kopili village 5 N5 Boro Tungkhrang village 6 N6 Dithur Village
65 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE 3.11: NOISE MONITORING LOCATION MAP
66 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3.5.3 Noise Level Results The noise monitoring within the study area was recorded using sound level meter and results are given in the table below:
TABLE 3.14: NOISE LEVEL WITHIN THE STUDY AREA (Unit – dBA) Average Day Average Night S. No Location noise level noise level (dBA) (dBA) N1 Project site 48.4 36.3
47.3 35.9 N2 Umrangshu village
Chota Larpheng 51.8 45.3 N3 village 49.5 40.2 N4 Kopili village
Boro Tungkhrang 52.4 43.6 N5 village N6 Dithur Villagre 51.3 44.5
Source: M/S Udaipur Min-Tech Pvt. Ltd.
TABLE 3.15: CPCB NOISE STANDARD Category of Zones Leq in dB (A) Day Night Industrial 75 70 Commercial 65 55 Residential 55 45 Silence Zone 50 40 a. Day time is from 6.00 Am to 10.00PM. b. Night time is reckoned between 10.00 PM to 6.00AM c. Silence zone is defined as an area up to 100m around premises of hospitals, educational institution and courts. Use of vehicle horn, loudspeaker and bursting of crackers is banned in these zones. Note: Mixed categories of areas be declared as one of the four above mentioned categories by the competent Authority and the corresponding standards shall apply.
Conclusion During the study period ambient noise level were monitored and observed minimum level was: 35.9 during night time & maximum was 52.4 during day time.
67 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3.6 BIOLOGICAL ENVIRONMENT: Biological Aspects The basic purpose to exploring the biological environment under Environmental Impact Assessment (EIA) is to assist in the decision making process and to ensure that the project options under consideration are bio-environmental-friendly. EIA identifies ways of improving project environmentally by preventing, minimizing, mitigating or compensating for adverse impacts before exploration and development phase. The present study on the floral assessment of the proposed project is based on field survey of the area supported by secondary data from various governmental and non-governmental sources.
Objective of the study The objectives of this study were as follows:
1. To conduct detail study for floral/ faunal/ avifaunal elements in the study area of proposed project site. 2. To assess scheduled species in the proposed site. (Rare, endangered, critically endangered, endemic and vulnerable). 3. To identify locations and features of ecological significance 4. To collect Baseline data for the study area along with a description of the existing terrestrial, wetland and aquatic vegetation. 5. To identify Impact of proposed project before exploration and during development phase on the biological environment 3.6.1 Activities undertaken during the study 1. Flora survey - Identification and documentation of Tree, shrub, herb, climber and grass species - Analysis of scheduled taxa of the proposed site 2. Fauna survey - Identification and Documentation of Avian, Reptilian, Amphibian, Mammal and other faunal diversity - Observations by direct and indirect evidences - Analysis of Scheduled species
68 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3. Study of Habitat/microhabitat for the faunal elements in the project site and surrounding areas within 10 km range from the site. 4. Photo documentation for flora and fauna (E – herbarium for flora) Study area:
The proposed project is Limestone Mine project spread over an area of 200 hectares. The applied lease area is non-Government Barren Land situated at Village and Taluka Umrangshu, district Dima Hasao (North Cachar Hills), Assam. The lease area is located in hilly terrain and no reserves or protected forest is present within the applied area. No National Park, Sanctuary exists within 10 km of the applied area.
FIGURE 3.12: PHOTOGRAPHS OF MINE LEASE AREA
Umrangshu and neighbouring areas lie in the western extremity of N.C. hills district and are bordered on west by the Kopili River. The region constitutes the eastern flank of the Shillong plateau. The drainage system of the area is controlled by river Kopili that flows in an east – west direction. The area comprises small flat – topped hillocks whose elevations vary from 580 m to around 820 m above msl. 69 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
The highest point at Khandong which is approximately 12 km. west of the deposit is at 837.29 above M.S.L.
The climate of the district of N.C. Hills is fairly diverse climate with an average annual precipitation of around 1500 mm to 2000 mm with average of 1673 mm and 40 to 90% relative humidity. The rainfall is mostly distributed between the months of July and September. About 90 percent of the annual rainfall is received during the period June to September, July and August being the rainiest months. The variation in annual rainfall from year to year is very large. During the North- East monsoon season, the relative humidity is generally over 90 percent. The coldest month is January and the hottest month is May. 10 km buffer area was taken for the present biodiversity study from the project boundary. The study was under taken during winter season (December, 2013 to February, 2014)
3.6.2 Survey methodology
Flora The present study on the floral assessment for the proposed project activity is based on extensive field survey of the area. The study has been conducted in winter season. The plant species were identified during floral survey and with the help of nearby institutions / University and by secondary sources. Besides the collection of plant species, information was also collected with vernacular names of plant species made by local inhabitants. In this process the whole study area was divided into different sections to get the maximum diversity of plant species. The sampling sites were selected based on land use pattern, topography and floristic composition of the study area. Data on forest type, legal status and their extent in the study area has been collected from forest department. The other relevant data on biodiversity, economically important plant species and medicinal plant, rare and endangered species in the study area have been collected during site visit and from different secondary sources.
70 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Fauna
The study of fauna takes substantial amount of time to understand the specific faunal characteristics of the area. The assessment of fauna has been done by extensive field survey of the area. During survey, Line Transect method was used for the study of mammals and Transact & Patch sampling was used for Amphibians. In addition the following sources were also used during survey.
Sighting during ecological studies Animal call Foot mark and excreta During survey, the presence of wildlife was also confirmed from the local inhabitants depending on the animal sightings and the frequency of their visits in the project area which was later confirmed from different government offices like forest department, wildlife department etc.
Avifauna
During Birds survey actual counts of birds were made following the standard survey technique. Observations were made during a walk through in the chosen transect for sighting birds. The number of birds observed in each sampling location was directly counted and listing was made. Birds were noted, counted and identified with the help of 8X40 “Optima Zenith” binocular and standard field identification guides.
Forest and forest types in the study area
Depending upon the pre-dominant species, the natural forest of the Dima Hasao, fall under the following category of subtypes-
1. Cachar Tropical evergreen Forests (IB/C3) 2. Cachar Tropical semi-evergreen Forest (2B/C3) 3. Northern Tropical, Sub-tropical Broad leaved Hill Forest Forests (8B/C2) 71 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
4. Tropical Moist Mixed Deciduous Forests- 8B (Ghogra, Oak Type) 5. Cane Brakes 6. Secondary Moist Bamboo Brakes (2B/C a) Cachar Tropical evergreen Forests type is generally found on the lower slopes of the northern and eastern aspects. The Forest is largely composed of evergreen species. Cachar tropical semi-evergreen occurs in hill tops, ridges and the upper slopes and in the forest areas affected by Jhum in the past. The forests have both evergreen and deciduous species. Northern Sub-tropical Broad leaved Hills Forests, originally forest cover of Board leaved evergreen species have mostly been cleared and altered by repeated felling, burning and Jhum cultivation. These are now considerable areas of open grasslands with scattered trees. In some patches almost pine, oak forests and found along with schism wallichii species.
The tree growths in these Forests are three different storeys, though they look monolithic from distant. The top consists of species like Artocarpus Chaplasa (Cham) Michelia Champaca (Titasopa), Mansonia depikae (Badam), Schima wallichii (Makrisal), Phoebe goalparensist (Bonsum), Adina cordifloa (Galdu), Gmelina arborea (Gamari), Duabanga species (Khokan) Bhelu (Tetrameles mudiflora), Albezzia procera (Koroi), Terminalia (Bohera etc.), Middle storey consists of trees like Eugenia species (Jam) Callicarpa species (Kum), Emblica officinalis (Amla) Albezzia species (Moj), Holarhena antidysentrica ( Dudhuri) etc.
The under storey consists of Eupatorium, Odoratum (Asom Lota),Imperata Cycindrica, Flemingia species, Leea species, Lantana camara , Zizyphus species (Bonbogari), Clerodendron species ( Dhatpat titu ) Litsea species, Phrtninum species (Kaupat) Murraya koenijii (Narsingha), Cnes etc. Besides these, the forests are made impregnable with multitude of tree climbers. Dima Hasao Forests is rich in non-wood Forests products (NWEP). NWEP are Forest products of human consumption, other timber, firewood etc. These products include oil-bearing seeds, leaf edible fruits, bark yielding tannin and dye, bamboos, medicinal plants
72 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
etc. These products not only meet the commercial requirements but are an important source of employment to people living in and around forest.
Bamboo Forests
The Bamboo forests occurring in the area can be classified as under 2B/la and 2B/251. The first type occurs under tree forest as a secondary storey. The main Bamboo Forests falls under the category of secondary moist bamboo brakes. This type occurs over an extensive area almost as a pure crop, either of Melocanna baccifera (muli) or Oxytenanthera parviflora (hill jati).
Some important species found in the area are-Dendrocalamus amiltonii (kako/pecha) Bambusa tulda (jati) Teinostachyum dulloa (Dalu), Melocanna bacciferra (muli), Oxytenanthera parviflora (Hilljati), Bambusa arundinacea (kata), Pseudostachyum polymorphum (Bajal/Bijullee), Bambusa pallida (Makalo, Oxytenanthera nigrocilliata ( Kalisundi) Gigantochloa macrostachya (Terai) etc.
Floral investigation
Core zone
The core zone of the study area is mine lease area. Mining of limestone is proposed in the new Umrangshu project, the lease area is 200 ha (Govt. Land,). Mining will be carried out by opencast semi-mechanized method.
The lease area is undulating in nature. The land use of the applied area is Non Govt. Barren land. The lease area is having very sparse tree species and dominant herbs and shrub species.
The species observed in the lease area are Michelia champca, Adina cordifolia, Lagerstromia parviflora, Terminalia chebula, Mangifera indica, Albizzia procera, Bridelia retusa, Garuga pinnata, Bombax ceiba, Alstonia scholaris, Anthrocephalus cadamba, Sapium bacatum, Azadirachta indica and Parkia roxburghii.
73 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
The Climbers, Weeds and grasses including Bamboo and canes species observed in the lease area are Abrus precatorius, Bauhinia anguina, Saccharum spontaneum, Saccharum procerum, Thysanolaena maxima, Polinia ciliate, Calamus guruba, Clamus latifolius, Calamus tenuis, Daemonorps jenkinsianus, Bambusa tulda, Melocanna bambusoides.
FIGURE 3.13: VEGETATION OBSERVED IN THE STUDY AREA
Buffer Zone
The structure and composition of vegetation in the buffer zone was studied by visual observations during the site visit. The buffer zone of 10 km is dominated by bushy vegetation and agriculture fields. The study area is located in a landform, which is surrounded by hills and undulations. The tree species are observed around the human settlement, hill slopes and hill top and in peripheral areas of agriculture fields. Common tree species observed during the site visit are Gmelina arborea, Michelia champca, Adina cordifolia, Lagerstromia parviflora, Artocarpus fraxinifolius, Terminalia chebula, Mangifera indica, Albizzia procera, Bridelia retusa, Pterospermum acerifolium, Garuga pinnata, Bombax ceiba, Alstonia scholaris, 74 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Dillenia indica, Anthrocephalus cadamba, Lannea grandis, Sterculia villosa, Sapium bacatum, Azadirachta indica and Parkia roxburghii.
In some patches of the study area there is luxuriant growth of Climbers, Weeds and grasses including Bamboo and canes. The species observed in the study area are Abrus precatorius, Bauhinia anguina, Bauhinia macrostachya, Bauhinia Vahlii, Mikenia macrantha, Spatholobus roxburghii, Thunbergia grandiflora, Impereta cylindrical, Phragmites karka, Saccharum spontaneum, Saccharum procerum, Thysanolaena maxima, Polinia ciliate, Calamus guruba, Clamus latifolius, Calamus tenuis, Daemonorps jenkinsianus, Bambusa tulda, Dendrocalamus hamiltonii, Melocanna bambusoides, Teinostachyum dulloa. A detailed List of Floral Species observed in the study area is given in below table.
TABLE 3.16: LIST OF PLANT SPECIES RECORDED IN THE STUDY AREA
S. No. Species Name of Botanical Family 1 Gamari Gmelina arborea Verbenaceae 2 T. Chap. Michelia champca Magnoliaceae 3 Bola Morus laevigate Moraceae 4 Haldu Adina cordifolia Rubiaceae 5 Sidha Lagerstromia parviflora Lythraceae 6 B. Poma Chikrassia tabularia Meliaceae 7 B. Jam. Eugenia pracco Myrtaceae 8 B. Dima Dysoxlylum binectiferum Meliaceae 9 Mandani Artocarpus fraxinifolius Moraceae 10 Gonsoroi Cinnamomum cecidodaphnac Lauraceae 11 Hilika Terminalia chebula Combretaceae 12 Am. Mangifera indica Anacardiaceae 13 Ashoi. Vitex pendunwlaria Verbinaceae 14 Sirish Albizzia procera Ceasalpiniaceae 15 Kushir Bridelia retusa Euphorbiaceae 16 H. Poila Pterospermum acerifolium Steracuniaceae 17 Kathal Artocarpus integrifolia Moraceae 18 Khakon Duabanga sonnaretioides Lythraceae 19 Bhelu Tetramelia nudiflora Combretaceae 20 Paroli Stereospermum chelanoldis Begnoniace
75 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
S. No. Species Name of Botanical Family 21 T. Mala Garuga pinnata Burseraceae 22 Simul Bombax ceiba Malvaceae 23 Satiana Alstonia scholaris Apocynaceae 24 Owtenga Dillenia indica Dilleniaceae 25 Dhuna Trewia nudiflora Euphorbiaceae 26 Kadam Anthrocephalus cadamba Rubiaceae 27 Oxi Dillenia pentagyna Dilleniaceae 28 Jia Lannea grandis Anacardiaceae 29 Kawla Machilus globusa Louraceae 30 Udal Sterculia villosa Sterculiaceae 31 Amora Spondius mangifera Anacardiaceae 32 Seleng Sapium bacatum Euphorbiaceae 33 S. Gamari Premna milliflora Verbinaceae 34 Rali Gleditsia assamica Fabaceae 35 G. Jam Eugenia eperculate Myrtaceae 36 D. Champa Gironniera species Cretaceae 37 Boroi Lonicera acuminate Caprifoliaceae 38 B Champa Litsa panamonja Lauraceae 39 Neem Azadirachta indica Meliaceae 40 M. Seem Parkia roxburghii Leguminaceae
76 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Climber
S. No. LOCAL NAME Scientific Name Family 1 Raturmoni Abrus precatorius Papilionaceae 2 Kuchai Acacia pifinata Mimosaceae 3 Deojakhala Bauhinia anguina Caesalpiniaceae 4 Ramjakhala Bauhinia macrostachya Caesalpiniaceae 5 Nakkatilota Bauhinia Vahlii Caesalpiniaceae 6 Bakullota Embelia ribes Myrsinaceae 7 Ghilalota Fentada scadens Mimosaceae 8 Refusilota Mikenia macrantha Compositeae 9 Bagachora Mezonuerum cuculatum Caesalpiniaceae 10 Bandorkakuwa Mucuna prurieta Papilionaceae 11 Bhedalilota Paederia foetida Rubiaceae 12 Hatibandhalota Spatholobus roxburghii Papilionaceae 13 Dhekialota Steochlaena palustris Blechnaceae 14 Kukraloti Thunbergia grandiflora Acanthaceae 15 Bonbogori Ziziphus rugusus Rhamnaceae
Weed and Grasses S. No. Local Name Scientific Name Family 1 Ekra Eriathusravneae Andropogoneae 2 Kher Impereta cylindrical Andropogoneae 3 Nal Phragmites karka Arundineae 4 Khagra Saccharum spontaneum Andropogoneae 5 Kush Saccharum procerum Andropogoneae 6 Rema Thysanolaena maxima Thysanolaeneae 7 Ghanh Polinia ciliate Andropogoneae CANES 1 Sundi Calamus guruba - 2 Homa Clamus latifolius - 3 Jali Calamus tenuis - 4 Gola Daemonorps jenkinsianus - Bamboo : (Dominant spp.) 1 Jati (Wati) Bambusa tulda - 2 Pecha Dendrocalamus hamiltonii - 3 Muli Melocanna bambusoides - 77 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
4 Dulloa Teinostachyum dulloa - 5 Hill jati Oxytenanthera spp. - (parvifolia) Source: Survey team in consultation with concern state forest officials and local people Medicinal Plants
The economic life of the tribal communities living in the rural areas in the district is still closely linked to surrounding forests and its produce. The medicinal plants from forests are an important component of the Minor Forest Produce. Otherwise known as Non-Timber Forests Produce (NTFP). The district is rich in medicinal plants. They are principal health care resource for majority of rural people. The N.T.F.P. including medicinal plants may play more than a subsidiary role in supplementing household income. Some of the Medicinal tree, herbs and shrubs, which grow naturally in some of our forests have great potential economic value. The demand for medicinal plants is increasing within and outside countries. There is depletion of medicinal plant resource in the district due to over exploitation as well as for practice of Jhum cultivation. The Medicinal Plants are mostly harvested from wild resource i.e. forest land and only a very few of number of species are cultivated.
Some of the important Medicinal Plants species found in the district are- Azadirachta indica (neem), Emblica Officinalis (Amla), Terminalia chebula (Hilika) T.belerica (Bohera), T. arjuna (Arjun) Aegle marmilos (Bel) Cinnamomum tamala (Tejpata) Crataeva magna (Sibidokti) Oroxyhum indica (Bhat ghila) Aquilaria,Agallocha (Agar), Taxus. Walliciana etc. Other important herbs & shrubs etc. are - Similax macrophylla (Chopchini), Rowlfia serpentine (Sarpagarila) Aspargus racemosus (Satamul) Homolaen species (Gandhi), Tinospora cordifolia (Hagunilata) Discorea alata (Bonkapahi) alatita (Kath Alu) Acalypha indica (Bishohory), Jatropha curcus (Bongali Ara/Bhotera) Swertia tita (Chirata Tita) etc. The plants observed in the study area having some medicinal properties are presented in below table.
78 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 3.17: LIST OF MEDICINAL PLANTS SPECIES OBSERVED IN THE STUDY AREA
S. No. Local Name Scientific Name Family 1 Boss Acorus clamus Araceae 2 Ultihoth Achyranthes aspera Amaranthaceae 3 Kuhumkata Argimone mexicana Papaveraceae 4 Doachuntry Ageratum conizoides Asteraceae 5 Satmul Asparagus racimosus Asparagaceae 6 Bhang Cannabis sativa Canabinaceae 7 Lotaguti Caesapinia cristia Caesalpiniaceae 8 Konasimalu Commelina bengalensis Commelnaceae 9 Bonhaldi Curcuma aromatic Zingiberaceae 10 Kalihari Gloriosa superb Liliaceae 11 TitaPhul Phlogocanthus thyrsiflorus Acanthaceae 12 Chirata Swertia chirata Gentianaceae 13 Huin (trade name) Spilanthes acmella Compositae 14 Sarpagondha Rauwolfia serpentine Apocynaceae 15 Sonborial Urena lobata Malvaceae Source: Survey team in consultation with concern state forest officials and local people Fauna
Faunal assessment provides a basis for determining relative abundance and rarity of each species which is important for assessing the diversity of fauna of a particular area. Since animals are capable of movements from one place to another, this makes their study entirely different. Different animals prefer different types of habitat for food and shelter.
With increase in population and consequence expansion of shifting cultivation with increasing short period, there has been considerable degradation of these prime wild life habitats. The forest in the hill tract is habitat for great variety of wild animals, which are representative of wild life of the oriental Zoogeographic realm.
79 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
The core zone of the study area is having bushy vegetation and supports species like Field mouse (Mus booduya), Hare (Lepus nigrocollis), Mongoose (Lapestes auropunctuatus) and Wild boar (Sus scrofa), which is also confirmed by the people residing near the lease area. The buffer zone is having different land use which supports different species like jungle cat (Felis chaus), rhesus (Macaca multta), Samber (Curvus unicolor), common langur (Presbytis entellus), goral (Nemorhacdus goral), Porcupine (Hystrix indica) etc. The list of fauna species found in the study area is given in below table.
TABLE 3.18: LIST OF FAUNA OBSERVED IN THE STUDY AREA
S. No. Local name English name Scientific name Schedule 1 Baduli (Badur) Fruit bat Rousettas leshenaultia V 2 BorIndur Field mouse Mus booduya IV 3 Ban birali The jungle cat Felis chaus II PART-2 4 Bandar The rhesus Macaca multta II PART-1 5 Bholangi (sarpahu) Samber Curvus unicolor III 6 Boroendur Bamboo rat Cannomis badius IV 7 Chika Mole Talpa micrura - 8 Endur Tree shrew Tupia glis - 9 Honuman The common Presbytis entellus II PART-1 10 Hugoripahu Balanrkguinrg deer Muntiacus muntjak III 11 Khorgosh Hare Lepus nigrocollis IV 12 N(Xeahayul pahu) The mongoose Lapestes auropunctuatus II PART-2 13 Paharichagal The goral Nemorhacdus goral III 14 Sajaru (Ketelapahu) Porcupine Hystrix indica IV 15 Shiyal/Hiyal The jackal Canis aureus II PART-2 16 Hiyal The fox Vules benglensis II PART-2 17 Suwar (gahori) Wild boar Sus scrofa III 18 Uood Common otter Lutra lutra II PART-2 Source: Survey team in consultation with concern state forest officials and local people
80 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Avifauna
Diversity of avifauna is one of the most important ecological indicators to evaluate the quality of habitats. Now-a-days, avifaunal diversity has been decreasing due to the destruction of natural habitats and human disturbances. Random destruction of natural habitats by cutting nesting trees and foraging plants for commercial use of woods and lands are the main factor responsible for narrow down in avian diversity. Both plant and bird diversity has an important role in maintaining the ecological balance and these are the indicator of health of the ecosystem. Bird diversity has a direct relationship with plant diversity. Plant diversity provides a space to birds for nesting, feeding and breeding.
During survey, The bird species which observed in the core zone are Koel, Magpie Robin, Jungle crow, House sparrow, Red Jungle Fowl, House swift, White wagtail, Little green bee eater, Yellow backed sun bird, House crow and Spotted munia etc.
The study area is having different land use pattern in the form of dense vegetation, bushy vegetation, water-bodies etc. which attracts different bird species. Most of the birds in the project area are distinctive to the habitat. During survey the species i.e. House sparrow, Pariah kite, Jungle crow, White breasted water hen, Magpie Robin, Cattle Egret, Green pigeon, Black headed oriole, Blossom headed parakeet, Rufous wood pecker, White wagtail, Koel, Common king fisher, Hoopoe, Indian roller, House crow were observed in different locations of the study area. List of birds observed in the study area are presented in below table.
TABLE 3.19: LIST OF BIRD SPECIES OBSERVED IN THE STUDY AREA
S. No. Local name English name Scientific name Schedule 1. Babul Baya Ploceus philppinus IV 2. Bata Rain quail Coturnix IV 3. Batasi Crested tree swift Hcoermoimpraoncdneel ica IV 4. Batasia House swift Alopnugsi paeffnniniiss IV 5. Bhutumphech Indian Eagle Owl Bubu bubu IV 6. Bona murgi Red Jungle Fowl Gallus gallus IV
81 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
7. Bou kaka kkou Brainfever bird Cuclus varius IV 8. Bulbul Bulbul Pycnonotus jokosus IV 9. Gharchirica House sparrow Passer domesticus IV 10. Chatak Small skylark Alauda gulgula IV 11. Cheel Pariah kite Milvas migrans IV 12. Darkak Jungle crow Corvus macrorhynchus IV 13. Dauk White breasted water hen Amaurournis IV 14. Doyel Magpie Robin Cpohposeyncihcusr usas ularis IV 15. Dub dubi Dabchick Tachylaptrus ruficollis IV 16. Gachphecha Spottet owlet Streptopelia Chinensis IV 17. Bogoli Egret heron Egretta garzetta IV 18. Kanimusuri Grey heron Ardea cinerea IV 19. Gorubogoli Cattle heron Bubulcus ibis IV 20. Haital Green pigeon Treron phoenicoptera IV 21. Patmadoi Black headed oriole Oriolus xanthornus IV 22. Hargila Adjucent stork Leptopilos dubius IV 23. Hiramon Blossomheaded parakeet Psittacula IV 24. Hutumphecha Brown fish owl KCyeatunpoace zpehyalolan ensis IV 25. Jalghuri Pheasant tailed Jacana Hydrophaisannus IV 26. Teltupi Red rumped shallow Hchiirrunurdgou ds aurica IV 27. Jangalipaora Maroon backed Imperial Dukula badia IV 28. Jangalishalika Gprigeeyo hne aded myna Sturnus malabaricus IV 29. Kath thukra Rufous wood pecker Micropternus IV 30. Dhobani White wagtail Mbaotarchciylular uasl ba IV 31. Kukil/kuli Koel Eudynamys scolopacea IV 32. Lakhiphecha Barn owl Tyto alba IV 33. Laldhupi Redtutle dove Streptopelia IV tranquebarica 34. Latkan Indian lorikeet Loriculus vernalis IV 35. Lanjo Pintail Anus acuta IV 36. Machhranga Common king fisher Alcedo atthis IV 37. Maupiya Fire breasted flower pecker Dicacum ignipectus IV 38. Mohonchura Hoopoe Upupa epops IV 39. Munia Spotted munia Lonchura punchulata IV 40. Myna Hill myna Gracula religiosa IV 41. Neelpakhi Fairy blue bird Irena puella IV 42. Nilkantha Indian roller Coracias bengalensis IV 43. Panicowri Little cormorant Phalacrocorex niger IV
82 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
44. Pan duri Darter Anhiga rufa IV 45. Paticowri House crow Corvus spendens IV 46. PechKunda Black drongo Dicrurus adsimilis IV 47. Patringa Little green bee eater Merops orientalis IV 48. Phultooshi Yellow backed sun bird Aethopyga siparaja IV 49. Raj Chaha Painted snipe Rostratula bengalensis IV 50. Raj hanh Barheaded goose Anser indicus IV 51. Raitkanda Indian night jar Caprimulgus asiaticus IV 52. Raja rani Scarlet minivet Pericroctus fflammeus IV 53. Sabajpeki Gold fronted leaf bird Chloropsis aurifronts IV Source: Survey team in consultation with concern state forest officials and local people Threatened species
During the course of survey, no threatened species were recorded in the study area.
3.7 SOCIO-ECONOMIC ENVIRONMENT:
INTRODUCTION The aesthetic component of environment study refers to the scenic value if any in the study area, tourist attraction, details about forest, wild life historic, and Cultural Monuments. The study of these parameters helps in identified, prediction and evaluation of likely impacts on socioeconomic and parameters of human interest due to proposed project.
METHODOLOGY: - The general methodology of impact assessment that we have used to assess socio- economic impacts associated with the project is as follows: Description of existing socio-economic or demographic environment in the area of influence (baseline socio-economic set up of the proposed project area) Procurement of relevant standards and criteria. Review of secondary data obtained almost socio-format in local village are this Choto Langherang, Ditpur, Waterdisa, Umarandam etc., such as district census data 2011 prepared by statistics department of state government, for the 83 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
parameters of demography, occupational structure of people and other details available within the core and buffer zone of study area. identified for socioeconomic survey in study area is shown below: Socio-economic survey done with group discussion withgrampanchayat,mukhia,gramsevak,wardpanch,sarpanch,school,stakeholder,l ocal,people,government official authority and village leaders. Assessment of socio-economic impact significance. Mitigation measures for adverse socio-economic impacts and the monitoring process. BASELINE STATUS (EXISTING SOCIAL CONDITION) To assess the impact on the socio economic environment, it is essential to collect the following data: data base thus generated in this study includes. Demographic structure Infrastructure base in the area Economic structure Health status Cultural attributes Socio economic status in relation to quality of life
Public awareness and their concern about the project
The primary socio economic data was collected through field survey team members, in sample villages in study area as well as the observations by the survey team. The secondary data has been used from census and NGO. It has been sub stained with relevant socioeconomic data from secondary sources of various official records. Viz., census records, Porbandar district statistical abstract, district health office, district industry center tourism office etc. the list of sampling villages identified for socioeconomic survey in study area is shown below: Socio-economic survey done with group discussion with gram panchayat Socio-economic survey done with group discussion with gram panchayat,
84 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
mukhia,gramsevak,wardpanch,sarpanch,school,stakeholder,local,people,governm ent official authority and village leaders
Demographic Structure
Demographic Structure
As per the census data for the year 2011 the study area over a radius of 10 km has a number of villages’ total population. Below Table No. 1
Socio -Economic Survey Villages
Sr. Name Of Village Distance Direction No. atMinesite [K.M.] 1 Umrangshu 6.6 South-West 2 Chota Larpheng 0.40 West 3 Kopili 5.1 West West North 4 Tongkhrang 5.40 South East 5 Dithur 6.0 South
Detail Of Summarized TABLE NO Demographic Parameters Details Name of state Assam Name of district. Dima Hasso New Name of subdivision Umrangshu N0.of village 10 Number of house holds 201 (19.37%) Total population 1038 Total Male 527 (50.78%) Total Female 511 (49.23%) Sex ratio (no. of female\ 1000 males) 969 Scheduled castes (%) 8 (0.77%) Scheduled tribes (%) 922 (88.83%) Literate (%) 554 (53.38%)
85 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Ill-literate (%) 487 (46.92%) Main worker 232 (22.36%) Marginal worker 10 (4.31%) Non worker 589 (56.74%)
Source: Village Directory 2011, Dima Hasao District, and State Assam
Table No.1, Shown In Fig.1
Sr. Name Of No. Details Of Sc St T- Ill- Employment No Village Of Population Lit Lit Worker . Hous Tp Tm Tf Ma Ma Non e in rg Hold Sub-Division New Umranghshu State Assam 1 ChotoLang 25 herang 50 256 125 131 0 5 188 68 11 0 38 2 Mungele 12 62 33 29 1 60 31 31 12 2 48 3 Waterdisa 6 31 17 14 1 30 17 14 6 0 25 4 Longsome pi 12 52 22 30 0 52 21 34 17 0 35 5 Sainilangs o 11 52 32 20 0 52 23 29 14 0 38 6 JangpangL 15 angso 30 163 73 90 2 8 107 56 39 3 121 7 15 15 Ditpur 49 258 142 116 4 6 107 1 60 0 198 8 Umaranda 11 m 23 118 61 57 0 3 42 76 55 3 60 9 Umrangdi sa 8 46 22 24 0 46 18 28 18 2 26 Ground 52 92 48 23 Total 201 1038 7 511 8 2 554 7 2 10 589 0. 19.3 50. 49.2 7 88. 53. 46. 22. 4.3 56. % 7 100 78 3 7 83 38 92 36 1 74
NOTE:H.H: HOUSE HOLD, TOT _P: TOTAL POPULATION, TOT_ M: TOTAL MALE, TOT_F: TOTAL
86 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FEMALE T_P_SC: TOTAL SCHEDULED CAST, T-P: SCHEDULED TRIBE, TOTAL LITERACY ,ILL-LITERACY
MAIN WORKER,MARGINALWORKER,AND NON WORKER
Fig. Total population distributed by male female ratio in study area
Detail of population
1200 1000 800 600 1038 922 400 527 511 554 487 200 201 0 8
SHOWN IN FIG. 1
literacy rate of survey area
46.92% 53.38% Total-literacy ill-literacy
SHOWN IN FIG. 2
87 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Occupational structure
with reference to the table2 which have been generated through the study of secondary occupational data for the villages within 10 km radius f the proposed mining site in the study area, predominant activity is agriculture, cultivators and agricultural labours. the total workers in the study area are
Main & Marginal Workers
The census classifies workers into two groups namely, main workers and marginal workers, main workers are those workers who had worked for the major part of the reference period 6 months or more marginal workers are those workers who had not worked for the major part of the reference period less than 6 months the main worker are classified on the basis of industrial category of workers into the following four category :
Fig. Employment working of population in study area
Employment worker
60 50 40
30 22.36 56.74 20 4.31 10 0 Main worker Marginal Non Series1 22.36 4.31 56.74
SHOWN IN FIG. 3
88 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Sex ratio (number of male per thousand female) in region is 969 this shows that male population is higher in the region as compared with the female population. Shown In Fig. 4
Sex ratio of survey area
Male Female
969 1000
Fig. Male and female sex ratio of population in study area
Infrastructure base in the area
Infrastructure resource base in village of the study area of proposed project at near village New Umrangshu sub-division Umrangshudist. Assamis satisfactory. Education facility up to primary level is available in all villages. Almost facility up to middle school and highschool is also available in Umranshuof villages. Medical facility inincludes primary health centre, registered private practitioner available.medical facility is available at distance in 5 to 10 km.govt. Hospital, communication facility like post and telegraph is also available within in buffer zone. The main drinking water resource is dugwell,handpump,pond, borewell.road are built pacca and kaccha both type.other facility includes rest shelter, canteen, amusement centre, amenities for workers and staff in form of bonus,PF is provide timely. Basic amenities /facilities Basic amenities / facilities available in nearby village & Sub-Division Dima- hasao, Umrangshu and town are such as road, power supply, communication, 89 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
medical and health etc. site is well connected with road and other infrstructurefcilities. Communication facilities such as post office, available near villageChotoLangherang,Ditpur,Waterdisa,Umarandametc.Hospital and dispensary facilities available in near town is Dimahasao
Amenities/Facilities House holds:-Most of the houses are in kaccha houses,it said hut there live tribal caste, which is made by wood,mud. Fuel:-Mainly firewood and chips, dung cake, coal etc. are used for cooking purpose in the study area. Very few villagers used the LPG Gas facility avalilable. Language :- Assamese Sanitation: - 100% population depends on site sanitation facility toilet facilities area inadequate in the study area.. River:it nearest flowing Kopili Riverit belongs distances 8 km. and water supply in study area. Irrigation:Rice is main crop in assam other food crop cultivated in agariculture include jute, sugarcane,tea, coconut, cotton, in area Water supply: kopili river is major sources and available hand pump,strem,etc. Road Transport facility: -villages are well connected with pakka road. For transportation purpose auto, jeep, and private buses are main sources for the villager’s private vehicle like bicycle & motor cycle also used by villagers. which study area is well connected to road network through local road which connected the site with SH- 7,NH-54 Rail transport: Railway Station is 44.34 km. distance at Umrangshu Village. Communication facility :-In the study area mobile phones ,television ,radio, news papers, post offices are mainly used for Communication purpose . Medical facility:-, Available At Dima Hasao
90 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Electricity:-The water from Umrangshu reservoir is taken through a 5473 meter tunnel to the Kopili power station to generate 100 MW (2 × 50 MW) of power. Market facility: - Study area is mainly rural area. in villages small shops and available near Dima Hasao.
ECONOMIC ATTRIBUTES It near Industries VINAY cement, NECEM cement, CALCOM etc. CULTURAL AND AESTHETIC ATTRIBUTE Dima Hasao District is a land of sensuousness. The population of the district if of various tribes and races who maintain their own dialect, culture, customs and usages. Apart from various tribes, non-tribal’s also account for a sizable amount of the population. They are mostly government employees, traders, graziers living in urban and semi-urban area. The small and serene villages shelter the lovely people – warm and fascinating – and as colorful as the land itself. Among the various tribes, the prominent ones are as follows.
91 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
3.14: SAMPLING LOCATION FOR SOCIO ECONOMIC STUDY
92 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER - IV
ANTICIPATED IMPACTS& MITIGATION MEASURES
4.1INTRODUCTION Environmental impacts due to open cast mining and allied activities are very common which degrade the quality of environment to a considerable Arial extent from the source. In this chapter the likely impacts on different environmental components are identified and mitigation measures are proposed accordingly.
4.2 IMPACT ON LAND ENVIRONMENT AND MITIGATION MEASURES: Topography and Drainage: Anticipated Impacts: The proposed mining will certain change the topography and drainage pattern of the mining applied lease area in the form of pits. However, mining operation confined to the core zone only, hence no impact is anticipated on the topography and drainage pattern of the buffer zone. Mitigation measures: To minimise the impact on the drainage pattern garland drain is proposed to be made around the working pit and dump so as to prevent the flow of water into the pit. Garland drain will be routed through adequately sized sumps for settling of suspended particles and the runoff thus collected will be used for afforestation. Mining will be done in scientific manner so minimum impact will be anticipated on drainage pattern of the area. Land use in core and buffer zone: Anticipated Impacts: No adverse impact is anticipated on land use of buffer zone due to the proposed mining operations, as all the related activities will be confined to the core zone. The land use of the core zone will undergo considerable change as arising from: - Excavations - Establishment of facilities in the area. The summarized detail of land use plan for pre-operational, operational and post operational phase as per the approved mining plan is given as under:
93 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
PARTICLUARS PRE- OPERATIONAL POST - OPERATIONAL (area in hect.), OPERATIONAL (area in hect.), PHASES*(at the end of lease period) (area in hect.), Pits 0.0 21.80 177.46 Dump 0.0 7.24 17.00 Road/ 1.74 2.50 3.00 Building 0.00 5.50 5.50 Plantation 0.00 7.50 30.00 Mineral Stack 0.00 3.00 3.00 Remaining land 428.26 382.46 194.04 Total Area 430.00 430.00 430.00
Mitigation Measures: A well laid out closure plan is given in the mining plan about 50.0Ha areas will be planted in which 6.58 ha on barren land/ ML boundary, 23.42 ha at road side and 20.00 ha. On Dump area at the end of mine life.
4.3 IMPACT ON WATER ENVIRONMENT AND MITIGATION MEASURES: Anticipated Impacts on ground water source: There is no proposal for abstraction of groundwater for the proposed limestone mining. The proposed mining will not intersect the water table of the area as the ultimate depth of mining will be 240mRL and general water table of the area is 245mRL. The excavation of limestone further does not add to any harmful ingredients that could leach down to the water table. Thus the mine workings will not affect the ground water quality.
Anticipated Impacts on Surface water source: There is no nallah in flow in applied lease area and some river flowing in the buffer zone such as Mongle Nadi is 3.0 km in E direction, Langhen Nadi is 4.0 in S direction, Kopili River is 5.0 km in NW direction, Langlai River is 11 km in S direction and Dithur Nadi is 12.5 is SE direction. If mining will not done by scientific manner than it may be affect the drainage of the area.
94 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Mitigation measures to minimize impacts on water environment: Garland drains will be constructed on all side of quarries. All the garland drains will be routed through settling pits to remove suspended solids from flowing into storm water. The water collected in the pit, after settling of the suspensions, will be used for plantation. Mining will be done above ground water table and there is no any harmful contents are present in lime stone which affects the ground water. Regular water monitoring will be done at specific intervals.
4.4 IMPACT ON AIR ENVIRONMENT AND MITIGATION MEASURES As explained in the previous chapter, the ambient air quality monitoring
results show that all the parameters such as PM 2.5 PM10, SO2, NO2 and are within the limits prescribed by CPCB for “Industrial and Mixed use” areas as well as areas meant for “Residential and Rural” areas. The major contribution of air pollution is by opencast mining, such as excavation, loading and transportation etc. which will lead to momentary rise in the
suspended particulate matter (PM10). The dust liberated in mining and other related operations is injurious to heath if inhaled in sufficient quantity. As such there will be no noticeable impact on air quality. Anticipated Impact: Mining operations and associated activities generally causes air pollution and the major air pollutant is the suspended particulate matter. Most of the air pollution problems are due to fugitive dust. 4.4.1 Pollutants / Model Options Considered for Computations:
The model simulations deal with major Pollution Particulate Matter (PM10) (PM2.5)
and gaseous emissions viz. SO2 & NO2. 4.4.2 Meteorological Data: Data recorded by continuous weather monitoring station on wind speed, direction, and temperature at one hour interval for the monitoring period was used as meteorological input.
95 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
4.4.3 Presentation of result: In the present case model simulations have been carried using the hourly triple joint frequency data. Short – term simulations were carried to estimate concentration at the receptors to obtain an optimum description of variations in concentrations over the site in 10-km radius covering 16 directions. The incremental concentration is estimated for the monitoring period. For each time scale, i.e. for 24/8 hr. the model computes the highest concentration observed during the period over all the measurement points. Dust emission rate from the applied mining area, based on the following empirical formula. a) Dust emission due to excavation: Pa x 23.6 Dust émission (DE) = ------Wd x Wh x 1000 DE = Dust emission in kg/hr Pa = Annual Excavation in Tonnes Wd = No. of days of operation in a year Wh = Effective working hrs in a day About 23.6 Quantity of dust emitted in kg/for 1000 tonnes of excavation Dust emission rate=(20,00,000 x23.6)/ 300x 8.0 x1000)= 19.67 kg/hr. The above mentioned emission rate is without adoption of dust control measures of each blocks. The literature suggests that dust control measures reduce the emissions and effective emission rate is one third of the computed emission. Accordingly emission rate to be in the modeling is 19.67/3) i.e. 6.55 kg/hr. Mine Dimensions The mine dimensions are as follows: Applied Area = 430.0hectare Meteorological Data On site hourly meteorological data for summer months (Dec. 2014 to Feb. 2015) in respect of wind speed, wind direction, temperature and cloud amount are
96 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
utilized in this study. The data was put in model format. The mixing heights have been extracted from CPCB publications. Modeling Procedure Methodology: Prediction of ground level concentrations (GLC’S) due to mining has been made by Industrial Source Complex, Short Term (ISCST3) as per CPCB guidelines. ISCST3 is US-EPA approved model to predict the air quality. The model uses rural dispersion and regulatory defaults options as per guidelines on air quality models (PROBES/70/1997-1998). The model assumes receptors on undulating and hilly. This model is capable of handling point, area, and line sources simultaneously. Meteorological inputs required are hourly wind speed and direction ambient temperature, stability class, mixing height and wind exponents. The model details follow. Gaussian Plume Model
Ground Level Concentration, from a point source at any receptor under unlimited mixing is given by (USEPA ISCST3, 1988).
Qg1g2
= (2 yzu) where,
g1 = exp(-y2/2y2)
g2 = exp[-(z-H)2/2z2] + exp[-(z+H)2/2z2]
In unstable or neutral conditions if z > 1.6 L (limited mixing) the distribution below the mixing height is uniform with height provided that both the effective height H, and the receptor height z are below the mixing height
Qg1 = In unstable(yLu2 case ) or neutral conditions when z < 1.6 L
Qg1 97 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
= (2 u) Where, y z Q = source strength Z = receptor height above the ground u = wind speed L = mixing height and
y&z = dispersion parameters
g3 = exp[-(z-H+2NL)2/2z2] + exp[-(z+H+2NL)2/2z2] Evaluation with N the number of reflections, varying from –4 to +4 is usually sufficient Stability Classification Hourly stability is determined by wind direction fluctuation method as suggested by Slade(1965)and recommended by CPCB (PROBES/70/1997-1998).
= Wdr/6
, is standard deviation of wind direction fluctuation, Wdr is the overall wind direction fluctuation or width of the wind direction in degrees. The table for stability classes is given as under.
Stability Class (degree) A > 22.5 B 22.4 – 17.5 C 17.4 – 12.5 D 12.4 – 7.5 E 7.4 – 3.5 F < 3.5 Dispersion Parameters
Dispersion parameters y and z for open country conditions (Briggs, 1974) are used as the project is located on a flat terrain in a rural area. Atmospheric dispersion coefficients vary with downwind distance (x) from emission sources for different atmospheric stability conditions. (CPCB – PROBES/70/1997-98). Rural Conditions
Stability Class y z A 0.22x(1+0.0001x)-.5 0.20x B 0.16x(1+0.0001x)-.5 0.12x
98 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
C 0.11x(1+0.0001x)-.5 0.08x(1+0.0002x).5 D 0.08x(1+0.0001x)-.5 0.06(1+0.0015x).5 E 0.06x(1+0.0001x)-.5 0.03x(1+0.0003x)-1 F 0.04x(1+0.0001x)-.5 0.16x(1+0.0003x)-1
Ambient Air Quality Standards Ambient air quality standards promulgated by Central Pollution Control Board (CPCB) for all type of land uses for the relevant air quality parameters are as follows:
Concentration (g/m3)
PM10 PM2.5 SO2 NOx
100 60 80 80
Plan and frame work of computations & selection of locations The locations have been selected around the applied lease area covering an area of 10 km radius from the centre of mining. Plan of Computation The emission rate, dispersion coefficients and other input data being now available; it was planned to compute the following: -The 24/8 hourly averaged incremental concentration with hourly data. -The identification of grid point having peak concentration for the incremental values. -Preparation of isopleths of for various pollutants. Predicted Ambient Air Quality With a wide fluctuation in meteorological parameters it is a complex task to predict post project ambient air quality. With available ambient air quality data and incremental concentrations computed through mathematical modeling the post project ambient air quality have been predicted in below table.
The maximum incremental GLCs due to the mining project for PM10, PM2.5, SO2 and
NO2 are superimposed on the maximum baseline PM10,PM2.5,SO2 and NO2 concentration recorded at the monitoring location during the field monitoring
99 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
period. The cumulative concentration (baseline + incremental) after implementation of the project. The maximum GLCs after implementation of the project are likely to be not in the prescribed NAAQ standards.
FIGURE 4.1: GROUND LEVEL CONCENTRATION OF AAQ DURING OPERATION
PHASE IN 10 KM FOR PM10.
100 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
FIGURE-4.2: GROUND LEVEL CONCENTRATION OF AAQ DURING OPERATION
PHASE IN 1 KM FOR PM10
101 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 4.1: PREDICTED AMBIENT AIR QUALITY CONCENTRATIONS IN OPERATION PHASE CUMULATIVE CONCENTRATIONS (BASELINE + INCREMENTAL) FOR PM10
S. Mining Particular No. lease area Monitored Maximum concentrations in 1. 76.6 µg/m3 Predicted incremental Maximum 2. 1.6 concentrations in µg/m3 Resultant Maximum concentrations in 3. 78.2 µg/m3 4. NAAQS (dated 2009) 100
Resultant maximum concentration with in permissible limit.
Mitigation Measures to Minimize Air Pollution
Main source of air pollution is dust from the movement of dumpers/trucks. The road is metalled except that inside the connecting link. Paving of road is proposed to be done, this will reduce the dust level from the movement of vehicles to a large extent. The sprinkling of water will be undertaken as and when required on roads as well as stockpile. The dust may also generate due to low level blasting. It will be very limited to the explosion site within 100 m. It will be minimized by plantation around the mine boundary. Wet drilling will be proposed with use of sharp drill bits. Further while manual lifting of the material and dumping into truck or by using excavator in this case being lime stone pieces, the dust generated will be minimum. However, drivers will be trained to drop the material from minimum height. Proper maintenance of vehicles will be done to minimize the pollutants; Pollution Under Control certificates will be maintained for the trucks and
102 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
drivers are instructed to drive at slow speed and proper supervision is maintained. The trucks will be covered while moving the material and care will be taken so that loading will be done without spillage of material during the movement. Effective traffic management will be done by ensuring that there are no traffic jams on mine route by deputing manpower and by planning truck movement. Proper management of waste dump yard. Effective mine closure plan or post mining land use Ambient Air Quality Monitoring will be conducted on regular basis to assess the quality of ambient air as per the proposed monitoring plan in Chapter-5 to have a watchful eye on dust levels and to assess the effectiveness of mitigation measures.
4.5 IMPACT OF NOISE / VIBRATIONS & MITIGATION MEASURES There is no habitation in and around the core zone. The nearest village is Umrangshu which is about 9.0 Km by road away from the mine site. The main source of noise pollution and vibrations will be (i) movement of trucks (ii) Operation of excavator (iii) Drilling of holes for blasting and (iv) Blasting itself. Anticipated Impacts: Noise generated from the proposed machinery ranges between 58 to 101dB (A) (during drill holes). The exposure time for the maximum noise level of 101dB (A) is one hour as per the Indian Bureau of Mines. Noise levels beyond the prescribed standards can have an impact on workers. These can have also impact, on fauna. Mitigation measures In order to reduce the effect of noise pollution, ear plugs /earmuffs will be provided to workers. The compressor used for drilling holes will be provided with proper enclosures. The workers will not be allowed to work more than one hour in noise prone area, and will be shifted to other places. Plantation will be carried out along mining lease boundary. The greenbelt minimizes propagation of noise.
103 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Proper maintenance of vehicles will be done. Mine operations will be limited to day time i. e 9AM to 6 PM Power Horns will not be allowed in trucks. Drivers will be further instructed not to use music systems at high volumes. The blasting will be of low impact type with a maximum impact area of 500 m The excavator use will be for limited hours with breaks at regular intervals. The excavator will be regularly serviced. By carefully designing a blast hole using experience and deciding drilling pattern or blast geometry with appropriate burden distance, spacing as holes, hole size, hole depth, and stemming height, and powder factor. Ambient and Source Noise level Monitoring will be conducted on regular basis to assess the quality of ambient air w.r.t noise as per the proposed monitoring plan in Chapter-5 to have a watchful eye on noise levels and to assess the effectiveness of mitigation measures.
4.6 IMPACT ON BIOLOGICAL ENVIRONMENT & MITIGATION MEASURES The applied lease area is a mixture of government waste land. There are no national parks, sanctuaries, notified biospheres, Tiger/Elephant Corridors, Birds migratory routes, etc. within 10 km radius. There is no interference with any first order streams. There is no release of any effluent. Impact on Flora and Fauna: The dust is the only major pollutant which will be generated from different activities of mining. The effect of particulate matter on vegetation is in the form of incrustation, plugging of stomata, and loss of chlorophyll and reduction of photosynthesis process. Disturbance in plant metabolism due to deposition of dust particles on foliar surfaces leads to reduction in plant growth. The activities such as blasting including drilling holes, operation of machinery as excavator and movement of dumpers/trucks can have impact in terms of disturbance due to noise; interference in movement etc. Mitigation Measures: During setting up and operation phase of mine following measures will be taken up to mitigate impacts on surrounding biodiversity:
104 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Mining activities will be restricted to day time so that fauna will not disturb at night. Tar road will be used for transportation to minimise fugitive emissions. Material will be covered during transportation. Plantation will be taken up in consultation with Forest department and species local to the area shall be planted as per findings during baseline environment which help maintain the regional ecological balance, soil and hydrological conditions. Water sprinkling will be done on haul roads to control fugitive emissions. Hedge of sturdy woody shrubs along the lease area will be created. The removal or picking of any protected/unprotected plant will not be permitted. Proper traffic management including ban on use of pressure horns; restriction on use of music in vehicles at high volume as well as regular maintenance of vehicles shall be insisted to minimize disturbance from vehicular movement. The noise causing activities as operation of excavator shall be stopped at regular intervals so that the continuity is broken. The blasting shall be restricted of low impact and shall be planned in consultation to have minimum impact. Educational and awareness programmes for mine workers will be arranged.
4.7 IMPACT ON SOCIO ECONOMIC CONDITIONS Impact on the population: In the study area, the population composition will not be affected as mostly local people will be employed. In the study area the non-working population will get employment both direct and indirect. The new employment avenue will help in giving employment to the non-working population. Females will also be provided employment Impact on the employment: In the study area, peak employment will be provided to 65 persons. Skilled, semi- skilled and unskilled workers will be employed on the basis of qualification, experience and skill. The proposed project will provide various opportunities of
105 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
indirect employment such as transportation, wholesale and retail selling etc. It will help in generating income in and around the study area. Impact on the Rural Development: The mining project will impact the rural development in many ways. It will increase the employment both directly and indirectly, increase the purchasing power and saving also. New employment opportunities will help in increasing the living standards also.
Impact on Economic conditions: The proposed mining project will bring employment in the study area and also in the surrounding areas. It will help in generating income in the study area. The purchasing power of the people in the study area will also increase duly. Both direct and indirect employment will help in improving the economic conditions and increase savings. Positive impacts There will be generation of employment opportunities directly or indirectly for the skilled or unskilled worker. The economic level and living standard of the local people will gradually increase due to outcome of mining industries. Additional facilities of medical, educational, and infrastructure will be development nearby village. Negative impact Damage to road connecting to the villages especially during rainy season because of running of heavy vehicles i.e. trucks, tractors, dumpers, and bull dozers jeeps etc. The mining dust may have negative impact on the health of local people living in the surrounding areas by the way of certain disease as related to lungs. Social and welfare activities Since the company present in this area for, they are aware of the social obligations towards the welfare of the society for the purpose of socio- economic
106 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
development of the area falling under the working zone New Umrangshu limestone mine mining the lessee is taking all possible efforts to improve the social life of the surrounding villagers of mine areas by generating direct & indirect employment. Further, additional aid is being provided to schools, panchayat under social development activity.
4.8 IMPACT ON OCCUPATIONAL HEALTH & SAFETY Healthy and safe working conditions are among the first expectations for sustainability, i.e. the expectation that risks in mining will not deprive workers of their livelihoods or of their quality of life. Occupational injuries and ill-health have huge social and economic implications for individuals, their families and their communities. They also have an adverse impact on the economy of the society as a whole. Occupational accidents and health hazards can also affect public health and safety, and the environment. The effect on the health and safety of people, costs to the economy and impacts the environment. Efforts will be made to address occupational health and safety with broader social agenda for sustainable development. Hazards, which are associated with poor engineering design, contribute to increased safety risks. Although health risks can be avoided by implementing controls at source in the work environment, designing such controls for mining environment presents considerable challenges because dust and noise are generated by mining itself. A range of control measures that act together to reduce exposure to such risks is therefore necessary. These could include methods for minimizing dust levels by reducing dust generation and methods for dilution, suppression, capture, and containment. While significant uncertainties remain in controlling dust exposures and maintaining the effectiveness of controls, the use of appropriate personal protective equipment (PPE) is important.
107 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Exposure to Dust Exposure to fine particulates is associated with work in most of the dust- generating stages notably from drilling and blasting, mineral handling, and transportation. Long term of dust exposure may causes lung diseses. Methods to prevent and control exposure to dust include the following: Control of dust through water spraying, Use of PPE, as appropriate to address residual exposures. Physical hazards Injuries during Project operation are typically related to slips and falls; contact with falling / moving objects; and lifting / over-exertion. Other injuries may occur due to contact with, or capture in, moving machinery (e.g. trucks). In case of any accident immediate & proper first –aid medical care shall be provided at the site. Pre-placement medical examination and periodical medical examination schedules The fresh employees when taken are thoroughly medically examined under initial medical examination and thereafter during continuation of employment; the periodic medical examination is being done as suggested by DGMS. Measures to Control Occupational Health Hazard & Safety The working in the mine lease area will be done with all safety measures under the supervision of qualified staff. The workers will be provided dust mask, safety boot, helmet and other safety equipment. Slope angle will be maintained in an accurate angle. Blasting will be done to take all precautionary measures. A well- equipped first aid box will be maintained at site. For mitigating the aspect the following measures will be implemented: Regular water sprinkling on haul roads. Dust mask will be provided to the workers, Periodical medical examinations will be carried out for the workers, Medical records will be maintained, Medical facilities to the workers,
108 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Any early symptom of diseases, if observed, such workers will be taken off from the dusty atmosphere and will be employed at other suitable place, Personal Protective Equipment’s will be provided to the workers, Vocational Training will be provided to the workers. Safety of the employee during mining will be taken care. Details of Infrastructural Facilities for Worker Water for drinking & other purpose will be arranged. All the safety equipment’s such as helmets, safety shoes, goggles, dust masks etc. A well-equipped first aid facilities, Rest shelter, washrooms etc. will provided near the working blocks. 4.9 IMPACT ON TRAFFIC DENSITY:
Mineral will stack in mineral stack yard within the lease area material will be transport as per requirement so not much impact anticipated on traffic.
======******======
109 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – V ANALYSIS OF ALTERNATIVES 5.1 SITE ALTERNATIVES This is freshly granted area for mining of mineral lime stone .the area is chosen for mining activities is not having habitation of any kind. Availability of labour from nearby villages so no alternative site is required at this time.
5.2 TECHNOLOGY ALTERNATIVES Limestone is exposed in the area and depending upon the availability opencast method of mining will be appropriate for the excavation of mineral. Moreover small scale drilling and blasting will also be done for excavation and loading and transportation will be carried out by excavator & dumpers respectively. Therefore as per the nature of mineral deposit and proposed rate of production the technology chosen is suitable for mining.
======******======
110 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – VI ENVIRONMENTAL MONITORING PROGRAMME
6.1 INTRODUCTION Success of any environmental management programme depends upon the efficiency of the organizational set up responsible for implementation of the programme. Regular monitoring of the various environmental parameters is necessary to evaluate the effectiveness of the management programme and take, if required, necessary mid-term corrective measures. Work zone environmental quality is also important to ensure compliance with safety measures. 6.2 PROPOSED SET UP An environmental cell for the area will be formed. The organization will be headed by General Manager (mine), Supervised by an Environmental Engineer/ Environment officer and supported by operating staff
1. Implementing the control and protective measures.
2. Coordinating the environment related activities within the project as well as with outside agencies.
3 Collecting statistics on health of workers and population of surroundings villages.
6. Green belt development etc.
7. Monitoring and evaluating the progress of implementation of environmental management programme.
6.3 ENVIRONMENT MANAGEMENT CELL In order to maintain the environmental quality within the stipulated standards, regular monitoring of various environmental components is necessary which will comply as per condition for this Environmental management team is constituted.
111 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
6.3: ENVIRONMENTAL MANAGEMENT CELL
General Manager Mines
Environmental Officer
Empanelled Consultants / Experts individually pooled Skilled Officers
Inputs
Additional Responsibility for EMP Environmental and Mitigation Laboratories Measures
6.4 ENVIRONMENTAL POLICY:- The management of the company will be very conscious to minimize the existing pollution load in the mining area. Apart from having an EIA-EMP, a permanent organizational set up will be charged for task of ensuring its effective implementation. This Company will undertake to monitor the environmental pollution levels by measuring ambient air quality, water and effluent quality, noise levels etc., by appointing external agencies. The company proposes to continue the monitoring in future also to ensure that the pollution is limited to allowable values and to take corrective action if required. In case the monitored results of environmental pollution are found to exceed the allowable values, the Environmental Management Cell will suggest remedial action and get these suggestions implemented through the concerned departments.
112 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
The Environmental Management Cell will also co-ordinate all the related activities such as collection of statistics of health of workers and population of the region, a forestation and green belt development. Assam Mineral Development Corporation Ltd is committed to providing a quality service in a manner that ensure a safe and healthy workplace for employees and minimize potential impact on the environment. They will operate in compliance with all relevant environmental legislation and strive to use pollution prevention and environmental best practices. The Company will:- Integrate the consideration of environmental concerns and impact in to all of our decision making and activities. Promote environmental awareness among employees and encourage them to work in an environmentally responsible manner. Trained, educate and inform to employees about environmental issues that may affect their work. Where required by legislation or where significant health, safety or environmental hazards exist, develop and maintain appropriate emergency and spill response programme. Strive to continually improve environmental performance and minimize the social impact and damage of activities by periodic review of environmental policy in light of current and planned future activities. For maintenance & repair or pollution control device, maintenance crew shall be taken from private agency. Massive plantation shall be done on contract from outside agencies. 6.5 MONITORING SCHEDULE AND PARAMETERS To evaluate the effectiveness of environmental management programme, regular monitoring of the important environment parameters will be taken up. The schedule, duration and parameters to be monitored are shown in table:
113 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 6.1: MONITORING SCHEDULE FOR ENVIRONMENTAL PARAMETERS
Monitoring Duration of Important Monitoring Particulars Frequencies Station Parameters Surface water/ pH, SS, TDS, Iron, Hardness, Ground water Twice in a year Grab Alkalinity, Chlorides, Nitrates, Sampling Sulphate & Fluorides Ambient air quality Twice in a year. 24/8 hr. PM2.5 PM10, SO2 and NO2 monitoring Noise Twice in a year. 8/1 hr. Level in dB(A) and dB(C) Monitoring PH, Conductivity, Sulphate, Soil Sampling Twice in a year Grab Nitrate, Phosphates, Alkalinity & texture.
6.6 BUDGETARY PROVISION FOR ENVIRONMENTAL MANAGEMENT The below table give overall investment on the environmental safeguards and recurring expenditure for successful monitoring and implementation of control measures.
TABLE 6.2: COST OF ENVIRONMENTAL PROTECTION MEASURES
(Investment and recurring cost)
Capital Cost Recurring Cost/ Annum S. No. Particulars (In Rs) Pollution Control (Water 15,00,000 3,00,000 1 tanker, garland drain, fencing. Settling pond
2 Pollution Monitoring 10,00,000 1,50,000 3 Green Belt development 10,00,000 2,00,000 4 Occupational health 10,00,000 1.00 5 Dump management 10,00,000 2.50 Miscellaneous (etc.) 6 5,00,000 1,00,000
Total 60,00,000 11,00,000 Recurring expenditure during the stage of production will be Rs. 11 Lac per year.
======**************======114 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – VII ADDITIONAL STUDIES
7.1 INTRODUCTION The additional study carried out for the proposed limestone project of production capacity 2.0 million TPA.
The anticipated risks in the mining operations are mentioned below: Hazard identification and risk analysis:
This deal with the hazards associated with various mining works during operation of the mine and can happen due to excavation, handling of material, machinery breakdown electric failures and natural calamities.
It also presents the calculated frequencies of occurrence of different accident scenarios for the identified potential hazard occurrence.
Risk Reducing Measures based on the calculated frequencies and consequences. 7.2 IDENTIFICATION OF HAZARDS Technological Hazards
Technological hazards may be due to intense noise during excavation / loading, transportation, drilling & blasting etc. fire in the excavator, and road mishap. Structural failure Structural failure is associated with the failure of slope, it can be bench fall, slope failure due to undercutting and fall of machinery and workers due to fall of bench/slope, any of the said activity can cause major injury and fatalities. 7.3 SCENARIOS CONSIDERED FOR RISK ASSESSMENT Knowledge of work The application of risk assessment depends upon full understanding of all aspects of the job being undertaken. In carrying out a risk assessment in relation to a particular task, the evaluation must include a review of the knowledge, experience and training of those persons carrying out the work.
115 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Personal Competence It follows that the knowledge, experience and training of personnel involved in work is critical to evaluate any risk assessment. A knowledgeable, experienced well-trained and competently supervised workforce will be at a lower risk of accidents occurring than a poorly trained and badly supervised workforce. Co-ordination It is essential that the coordinator ensures that everyone engaged in the work is capable and understands the role of others and their responsibility for each other. Health hazards Health hazards are associated with the dust and noise, it is necessary to quantify the key pollutants during surface mining operations that may result into health hazard. Inundation The nearest water body is Mongle Nadi is 3.0 km in E direction, Langhen Nadi is 4.0 in S direction, Kopili River is 5.0 km in NW direction, Langlai River is 11 km in S direction and Dithur Nadi is 12.5 is SE direction from the applied lease area. There is no possibility of inundation of mine due to this river. Noise Noise is considered as a common occupational hazard in mine environment. Prolonged exposure to noise over a period of years may cause permanent damage to auditory nerves and its sensory components (Noise Induced Hearing Loss). In order to avoid Noise Induced Hearing Loss (NIHL) to the operators of the HEMMs, the cabins of these machines will be made sound proof. Also, the operators and other workers working in the high noise generating areas are being provided with ear plugs/ ear muffs to protect their hearing. No worker will be allowed to enter high noise generating areas without wearing proper protection equipment’s.
116 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Surface Fire There are no ignitable materials in limestone deposit. However, the excavator to be deployed in the mine may catch fire. All precautionary measures will be taken to prevent the occurrence of such activity. Loading There will be no risk associated with the activity. However, precautions will be required to be taken to remove workers away from the loading operations, to avoid any fall of material on persons. Also, the loading operations will be supervised by a site supervisor for properly guiding the loading machine operator. Pit Slope Failure The sides of the mine benches will be suitably sloped to avoid bench failure. The bench height is planned to be kept 8.0 m height with width more than 18m to 25m of the bench. The bench sides and edges will be regularly inspected for any signs of failure, development of cracks, etc. Due precautionary measures will be adopted to avoid any bench or pit slope failure. Heavy Vehicles Proper care will be taken while loading and transportation of mineral and overburden. Good maintenance and regular testing will be done to avoid any mishap. Personal Protective Equipment (PPE) The PPE should be of good construction, where ever possible ISI certified, suitable for the hazard e.g. a dust respirator fitted with the correct filter to capture the particular hazardous dust and maintained to recommended standards. Traffic Movement The mining operation will be of small scale and the machinery proposed to be used for mining is less in number, therefore there will be no risk of accidents due to the traffic movement. However, haulage roads will be properly maintained and the speed limits shall be implied on the vehicles plying for mineral transport to avoid accidents.
117 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
7.4 DISASTER MANAGEMENT PLAN The complete mining operation will be carried out under the management control and direction of qualified Mines Manager. The Directorate General of Mines Safety (DGMS), Dhanbad have issued a number of standing orders, model standing orders and circulars to be followed by the mine management: Checking and regular maintenance of garland drains and earthen bunds to avoid any inflow of surface water in the mine pit. Provision of pumps for pumping out water from the mining pit. Entry of unauthorized persons will be prohibited. Fire fighting and first aid provision shall be kept in the mines office complex and mining area. Safety equipment such as safety boots, helmets, goggles etc. Will be made available to the employees and regular checked for their use. Training and refresher courses for all the workers. Working of mine as per approved scheme and regular updating for the same. Regular cleaning of mine faces. Regular maintenance and testing of all mining equipment as per manufacture’s guidelines. Suppression of dust on the haulage roads. Increasing the awareness of safe practices through competitions, posters and other similar drive. 7.5 OUTLINE OF DISASTER MANAGEMENT PLAN The purpose of disaster management plan is to restore the normalcy for early resumption of mining operation due to an unexpected, sudden occurrence resulting to abnormalities in the course of mining activity leading to a serious danger to workers or any machinery or the environment. The main objectives of preparing a disaster management plan in mining project include: • To protect workers in mine from accident.
118 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
• To prevent or reduce the incidence and severity of injury during mining operations. • To respond immediately and adequately in case of a serious accident. First Aid & medical facilities The mine management will provide first aid facilities for use in emergency situation. All casualties would be registered and will be given first aid. The mine management will provide all facilities to evacuate the injured person from the accident site to the nearby hospital. Care and maintenance during temporary discontinuance In case of any temporarily discontinuance or if mine closes temporarily, then the mining working will be in the watch of a watchman. Before reopen of the mine maintenance working will be provide to all the machineries deployed at mine site. Before entering the labourers into the mine working/faces the workings and faces are proposed to be inspected by manager for safety purposes as Mines Act. 7.6 SOCIAL IMPACT ASSESSMENT, R&R ACTION PLAN There will be the positive impact on the villagers of the nearby villages in the form of employment. There is no human settlement in the applied lease area. Thus there is no impact on the human settlement and thus no R & R plan is required
119 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – VIII PROJECT BENEFIT
8.1 INTRODUCTION: This is a proposal for the production of 2.0million TPA limestone from applied mining lease area of 430.0 ha. 8.2 IMPROVEMENT IN SOCIAL INFRASTRUCTURE: The mining activity will generate many socioeconomic benefits to the people of the area. There will be generation of employment to the local people as well as their earning will also be increased. Additional facilities such as medical, educational and transportation will be made available to the local population. There will be positive impact on population by way of employment, housing, education, medical and transportation facilities, economic status, health and agriculture. Literacy rate may go up. Local people may be taken into confidence. 8.3 IMPROVEMENT IN PHYSICAL INFRASTRUCTURE There will be mining activities in this region. Though there is local population available but due to increase in demand or increase in mining activity, there is possibility of employing labour from the surrounding areas. Due to increased revenue earnings in the area there will be development of infrastructural facilities such as transport, road, housing, schools as well as hospitals. Due to improved earning there will be improvement in the entertainment facilities and marketing facilities with the improvement in social status. 8.4 EMPLOYMENT POTENTIAL In the mine number of skilled and unskilled local workers will be employed. The project will generate direct and indirect employment. At present there is no technical and non-technical employed in the mine. The employment potential due to the proposed project is given as under.
120 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 8.1: EMPLOYMENT POTENTIAL
b) Employment potential- (60-70% employment shall be from surrounding area) Highly Skilled 9 Skilled 33 Semi-Skilled 21 Un-Skilled 2 Total - 65
8.5 CONCLUSION The project will generate a fair amount of direct, indirect and induced employment in the study region. The local economy will receive a boost due to employee spending and services generated by the project proponent. The overall effect will improve buying power of employees and thus a higher standard of living viz. better education, improved health and sanitation facilities housing and acquisition of consumer durable. This is envisaged as a major positive benefit.
======**************======
121 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – IX
ENVIRONMENT MANAGEMENT PLAN
9.1 INTRODUCTION The environmental management plan has been formulated in keeping view the process of mine planning so that ecological balance of the area will be maintained and identified adverse impacts that are likely to arise will bemitigated. Mitigation measures for identified environmental impacts have already been discussed earlier in Chapter-IV. The main objective of environmental management plan is implementation of all environment pollution controlling system effectively to maintain the ecological balance of the area and also to promote the sustainable development during the operational and post operational phase in the area.
TABLE 9.1: ENVIRONMENT MANAGEMENT PLAN IMPLEMENTATION Environmental Mitigation measures Implementation Issue Air pollution Paving of road. Project authorities The sprinkling of water will be through Regular undertaken as and when required on monitoring of the roads, roads as well as stockpile. plantation sites, random Wet drilling. checking of equipment, Plantation around the mine lease. provide dust mask to Training to driver for unloading the labours and employees. material from safe height to prevent dust generation. The trucks will be covered while moving the material and care will be taken so that loading will be done without spillage of material during the movement. Traffic management to ensuring that there are no traffic jams on mine route by deputing manpower and by planning truck movement. Proper management of waste dump. Effective mine closure plan or post mining land use. Noise pollution Plantation along mining lease boundary. Project authorities The greenbelt minimizes propagation of through Regular
122 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
noise. monitoring. Proper maintenance of vehicles will be done. Mine operations will be limited to day time. Power Horns will not be allowed in trucks. Drivers will be further instructed not to use music systems at high volumes. The compressor used for drilling holes will be provided with proper enclosures. The blasting will be of low impact type with a maximum impact area of 500 m The excavator use will be for limited hours with breaks at regular intervals. The excavator will be regularly serviced. By carefully designing a blast hole using experience and deciding drilling pattern or blast geometry with appropriate burden distance, spacing as holes, hole size, hole depth, and stemming height, and powder factor. In order to reduce the effect of noise pollution, ear plugs /earmuffs will be provided to workers Ambient and Source Noise level Monitoring will be conducted on regular basis to assess the quality of ambient air w.r.t noise as per the proposed monitoring plan to have a watchful eye on noise levels and to assess the effectiveness of mitigation measures. Water pollution Garland drains will be constructed on all Project authorities side of quarries. All the garland drains through regular will be routed through settling pits to monitoring. remove suspended solids from flowing into storm water. The water collected in the pit, after settling of the suspensions, will be used for plantation. Plantation shall further help to reduce surface water pollution. Land degradation A well laid out closure plan is given in the Project authorities mining plan and approved from the through regular authorities. Detail is given for reclamation monitoring. of the degraded mine lease area to the maximum possible extent by backfilling of 123 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
the worked out pit and plantation in the statutory boundary barrier and over backfilled part of the lease About 50.0Ha areas will be planted in which 6.58 ha on barren land/ ML boundary, 23.42 ha at road side and 20.00 ha. On Dump area at the end of mine life. Biological Mining activities will be restricted to Project authorities Environment day time so that fauna will not through regular disturb at night. monitoring. Tar road will be used for transportation to minimise fugitive emissions. Material will be covered with tarpaulin during transportation. Plantation will be taken up in consultation with Forest department and species local to the area shall be planted as per findings during baseline environment which help maintain the regional ecological balance, soil and hydrological conditions. Water sprinkling will be done on haul roads to control fugitive emissions. Hedge of sturdy woody shrubs along the mine will be created. The removal or picking of any protected/unprotected plant will not be permitted. Proper traffic management including ban on use of pressure horns; restriction on use of music in vehicles at high volume as well as regular maintenance of vehicles shall be insisted to minimize disturbance from vehicular movement. Educational and awareness programmes for mine workers will be arranged.
124 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Occupational health Regular water sprinkling on haul Vocational Training will & safety & public roads. be provided to the health & safety. Dust mask will be provided to the workers. workers. Periodical medical examinations will A well-equipped first aid be carried out for the workers as facility will be made per Norms. available round the clock Medical records will be keeping in ML area. By Project maintained. authority. Medical facilities to the workers. Any early symptom of diseases, if observed, such workers will be taken off in the dusty atmosphere and suitable employed elsewhere. Personal Protective Equipment’s will be provided to the workers. Vocational Training will be provided to the workers. Safety of the employee during mining will be taken care as per Mine Regulations. Waste management Waste generated from the mining will be Regular monitoring by backfilled to the worked out pit and project authorities. plantation will be done over it.
125 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 9.2: COST ESTIMATES OF EMP IMPLEMENTATION
(Investment and recurring cost)
Capital Cost Recurring Cost/ Annum S. No. Particulars (In Rs) Pollution Control (Water 15,00,000 3,00,000 1 tanker, garland drain, fencing. Settling pond
2 Pollution Monitoring 10,00,000 1,50,000 3 Green Belt development 10,00,000 2,00,000 4 Occupational health 10,00,000 1.00 5 Dump management 10,00,000 2.50 Miscellaneous (etc.) 6 5,00,000 1,00,000
Total 60,00,000 11,00,000
9.2 GREEN BELT DEVELOPMENT Green belt development is the most effective pollution control measures. Trees play vital role in keeping the ground level concentration in control within the project and its surrounding premises and also in preventing the horizontal dispersion of the pollutants to the surrounding areas. They are very effective in trapping the pollution causing agents viz. dust and gaseous pollutants. The green belt is being proposed for following objectives. Arresting of fugitive dust emission. Noise pollution control. Prevention of soil erosion. Balancing eco environment. Aesthetics. The action plan for green belt development is given in the following table:
126 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
TABLE 9.3: STAGE WISE PLANTATION On Mined Peripheral Backfilled area Dump area Total benches Year Area Area Area Area Tre Area Trees Trees (Hect. Trees Trees (Hect.) (Hect.) (Hect.) es (Hect.) ) Existing ------I 1.5 1500 ------1.5 1500 II 1.5 1500 ------1.5 1500 III 1.5 1500 ------1.5 1500 IV 1.5 1500 ------1.5 1500 V 1.5 1500 ------1.5 1500 Upto 5th 7.5 7500 ------7.5 7500 year End of life of 22.5 22500 - - - - 20.0 20,000 42.5 42,500 mine Total 30.0 30,000 - - - - 20.0 20,000 50.0 50,000
TABLE 9.4: SCHEDULE OF PLANTATION (stage wise) AREA IN HECT. YEAR/ Afforestation on Back-filled Mined out NO. OF TREES STAGE Dump statuary barrier area benches
Present ------
5th Year 7.5 - - - 7500
At the end of 22.5 - 20.0 - 42,500 mine life
Protection of Plantation Sites Plants will be protected from diseases by the application of proper pesticides. Soil workings, manuring etc. will be done whenever necessary. Plants will be protected by providing fencing and proper watch and ward.
127 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
9.5 PLANTATION SPECIES 1 Haldu 2 Siris 3 Simul 4 Kadam 5 Neem 6 Aam
9.3 SOCIO ECONOMIC ENVIRONMENT Based on the findings of the socioeconomic study, CSR proposal has been made by the PP and it is aimed at the socio-economic upliftment of the area The cost estimates for CSR implementation is given as under. According to Survey following deficiencies was seen and for that CSR has prepared. Common CSR has been proposed for both the mines. TABLE 9.6: COST OF CSR ACTIVITIES
S.No. Detail Expenditure per year( in lac)
1. Provide clean drinking facility in 1,00,000 Umranshu village
2. Construct village road of 3,50,000 umrangshu 3. Distribute free books & school 1,50,000 uniform in School in Umrangshu village 4. Construct washroom for girls at 2,00,000 Umrangshu village. 5. Provide free medical health check- 3,00,000 up camps & free medicine distribution. 6. Give scholarship to bright 1,00,000 students.
Total 12,00,000
128 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
9.4 OCCUPATIONAL SAFETY & HEALTH
The medical histories of all employees will be maintained in a standard format. Thereafter, the employees are subjected to medical examination on annual basis. The said medical examination keep upgrading the database of medical history of the employees. Safety of employee during mining operation and maintenance of mining equipment will be taken to avoid any adverse effect on the health of workers. To avoid any adverse effect on the health of workers due to dust, heat, noise sufficient measures will be provided in the mining project. These include: Provision of rest shelters for mine workers with amenities like drinking water, washrooms etc. Provision of personal protection devices to the workers. Rotation of workers exposed to noisy areas. Dust suppression on haul road. First-aid facilities in the mining area. Additionally, the health status of workers in the mine shall be regularly monitored under an occupational surveillance programme. Under this programme, all the employees will be subjected to a details medical examination at the time of employment. The medical examination covers the following tests.
General Physical Examination and Blood Pressure. X-ray Chest and ECG. Detailed Routine Blood and Urine examination. TRAINING & HUMAN RESOURCES DEVELOPMENT The training of mine personnel will be conducted regularly with respect to environmental protection. Training facilities will be envisaged in the mine site. Specialized courses will be arranged for afforestation, re-vegetation, reclamation etc. in various Institutes and organizations.
129 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Training and human resource development is not a single time function but a continuous requirement to up-date and improve the skills of employees. Hence, in addition to whatever statutory training is required, the company looks forward to continue the process by way of participative training of the personnel in various workshops, training courses organized by manufactures /professional agencies. Budgetary provision for occupational health and safety of the worker is given in the table TABLE 9.7 BUDGETARY PROVISIONS FOR WORKERS Facility Provided for Capital Cost Total amount in per Remark Labourers year (Rs.) Drinking water By 12000 144,000 - Tanker First Aid Box 30,000/- 30,000 One time Rest Shelter 1,00,000/- 1,00,000 One time Washrooms 1,00,000/- 100,000 One time Safety shoes 31,800/- 63600/- Two time in a year Hand Gloves 10,600/- 130,000 One time in a month Dust mask 5300/- 1,30,000 Two time in a month Earmuffs 5300/- 1,30,000 - Helmet 31,800/- 31,800 Three year Regular health - 5,00000 check-up Insurance 1,00,000/- 1,00,000 One time Total 426800 14,59,400
130 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – X
SUMMARY & CONCLUSION 10.1 INTRODUCTION
This report is prepared to evaluate the environmental impacts of the project namely New Umrangshu limestone area over 430.0 hect. (Govt. Waste land ) near village Umrangshu, Tehsil – Umrangshu , District – Dima Hasao (N. C. Hills) (Assam) in line with the requirements of EIA notification SO 1533(E) dated 14.9.2006 and amendments made thereof. 10.2 IDENTIFICATION OF PROJECT & PROJECT PROPONENT:
Project identification The Assam Mineral Development Corporation Limited (AMDC) is public limited
company wholly owned by Govt. of Assam. The company was incorporated on 19th
May 1983 under Companies Act 1956.
The AMDC applied for mining lease over an area of 430 hectares, near village 22
km, Taluka Umrongshu, District – North Cachar, Assam for mineral limestone on
05.11.2011.
Govt. of Assam granted mining lease over an area of 430 hectares vide letter no.
PEM/48/2011/47 dt. 24 July 2012, with the condition to submit approved Mining
Plan within six months and prior EC under Environment Protection Act 1986.
We have submitted the mining plan within six month from issues of LOI for
approval but due to some reason, mining plan was not approved so applicant has
applied for extension of LOI and applicant has extension & now approval of mining
plan under process.
Application for Environmental Clearance under the MoEF & CC notification 2006
was submitted to the MOEF & CC,Delhi and after the presentation made before the
131 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
committee, TOR was prescribed for the EIA study to be done vide letter No. J-
11015/397/2014-IA.II(M),dated 04/02/2015.
Project Proponent:
Assam Mineral Development Corporation Limited is a Private Company incorporated on 19 May 1983. It is classified as State Govt. Company and is registered at Registrar of Companies, Shillong with registration number 2045. Registered Office Address Assam Mineral Development Corporation Ltd. Khanij Bhawan Sahjahan Market, Near Ganesh Mandir, R.P. Road, Dispur Guwahati-781006, Assam Ph. 91-361-2384078 (off.) Email: [email protected] Contact Person Sh. J.P. Baruah (Managing Director) Assam Mineral Development Corporation Ltd. Sh. J. P. Baruah (Managing Director) and nominated owner of the Assam Mineral Development Corporation Ltd. for this project. 10.3 LOCATION OF PROJECT
The applied lease area falls on survey of India Toposheet No. 45M/14 & 83C/14 and is situated between: Latitude N Longitude E 25°32'45.44"N to 25°34'25.26"N 92°46'35.14"E to 92°47'44.70"E
10.4 SIZE OR MAGNITUDE OF OPERATION:
About 2.0 million tonnes lime stone will be mined out from 430.0 ha area.
Local geology of area: The investigated area is confined to an area of 6.5 sq.km. from near 7th to 12th km. post
132 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
from Umrongsho and along southern of Umrongsho – Lanka road within the area, the Sylhet limestone formation attains a thickness of about 77 m. Overlain by Kopili Formation. It has been observed that the Lang-Kree nala is flowing just along the contact of sylhet limestone and Basal sandstone Formation.
LOCAL STRATIGRAPHIC SEQUENCE Group Formation Lithological units Thickness Jantia (Eocene) Kopili Shale & Alteration of 0-6m Sandstone splintery shale and medium to fine grained variegated coloured sandstone current bedded and sometime laminated. Sylhet Limestone Top Band 28.5m Formation limestone, Top 3.0 to 5.0 ferruginous limestone with fossils mainly nummulites. Rest of the thickness is grey limestone fossiliferous and partly shaly at places. Intermediate shale Grey, splintery 5.0 – 6.0 m sticky and persistent shale Bottom Band Grey, hard and 49.0 m limestone compact fossiliferous limestone, Basal sandstone Sandstone with Not Known carbonaceous shale
Description of the rocks units within the applied area:
133 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Kopili Sandstone & Shale: The Kopili formation forms the upper most unit of the Jaintia Group and is composed of alternation of gray to brown splintery shale and yellowish brown sandstone . Thin bands of calcareous shale and impure limestone are also seen at places. This formation is encountered in 11 bore holes i.e. 1, 4, 8, 9, 10, 11, 12, 13, 15, 16 & 26.two boreholes. The sandstone is medium to fine grained well sorted, whitish to brown in colour. It is soft and sometime friable. The shale is dark gray to brownish in colour and splintery in nature
Sylhet Limestone: (Upper Band Limestone); The upper limestone band shows an average thickness of 28.00 m. This band has been encountered in 22 bore holes . Top 3.0 to 5.0 m is ferrugineous and red in colour. The colour gradually changes from dirty grey to fresh grey orientation of fossils in a definite direction and low to heavy concentration of fossils at certain horizons is the peculiar characteristics of this ferrugineous limestone. Calcite crystallization along the fractured planes are common. Towards the bottom of the colour of the limestone varies from light grey to buff and then gradually to grey. Fossil mainly nummulites) contents also varies a different vertical sections. CaO content seems to increase towards bottom of this band. Chemical analysis of this band shows high percentage of
R2O3 and low percentage of CaO.
Intermediate Shale : The top band and bottom band limestone are separated by a thin but persistent shale band, thickness of which varies from 5.0 to 6.0 m. This shale has been encountered in all the boreholes except in two boreholes, the shale band might have been missed as they are located at lower levels then the shale band. The shale is dark gray in color with occasional thin shally limestone band.
Lower Band Limestone: In general immediately below the intermediate shale band the bottom band limestone is encountered in almost all the boreholes of the area. The contact is observed to be gradational one the average thickness of this band is 48 meters. Limestone of this band is grey to dark grey in colour and less fossiliferous. In contrast to the upper band 134 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
limestone, this limestone band shows low percentage of R2O3 and high CaO. The bottom most (about 22.0 m) portion is , however, more rich in CaO. This band can be classified in to three recognizable sub horizons as stated below: (a) Top dirty grey to gray limestone with shale intercalation. (b) Middle gray to high gray massive and compact limestone. (c) Lower gray limestone with sandy limestone band. Basal Sandstone : The Basal sandstone formation lying un-conformably over the pre –Cambrian , is mainly made up of whitish to pale brown sandstone, medium to fine grained, slighty quartzitic with occasional presence of carbonaceous shales and thin coal seams. It makes its presence along Amrangnala. 10.5 MINING METHOD Salient features to work the mine by mechanized open cast method of mining. Height of bench will be maintained at 8.0 m. Slope of bench will be 800 from horizontal. Bench width will be 18-25 m. Approach road to have gradient of 1:16. Drilling of holes will be with compressed air operated Wagon drill. Hole diameter will be 110-115 mm and 10% sub grade drilling. ii) Layout of Mine working, faces and disposal of OB/waste: (Refer Plant no 5A & B, Five year dev. Plan & sections) Faces will be opened in central part of area and will advance in East & North direction, as shown on the plan. Year wise description is given above .upper bench will be kept sufficiently advanced for safe working of lower benched. Waste will be dumped in the south-west corner of the applied area. 10.6 EMPLOYEE DETAIL: About 65 workers is being working in mines.
10.7 MACHINERIES DEPLOYED:, excavator, atlas copco, water tanker, road roller, jeep, etc
135 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
10.7 DESCRIPTION OF ENVIRONMENT TOPOGRAPHY: The area is characterized by steep-slopped hill ranges divided by narrow sharp nallas. The altitude ranges from 300 m at Langkru nalla bed to 500 m. on the hilltop near Langmaklo village above mean sea level. The topographical features on the area is mainly controlled by the characters of the litho units and pre- existing spring system of the topmost Kopili Formation. The Langkru river-let a tributary to the Kopili river is the main stream which has controlled the drainage system of the area. The drainage system is consequent one.
The region falls within the tropical monsoon belt. The average annual rainfall ranges between 200 cm and 250 cm. The climate is damp and humid in summer. The temperature ranges from 60C during winter to 400C during summer.
LAND USE OF CORE AREA
PARTICLUARS PRE- OPERATIONAL *Post- OPERATIONAL (area in hect.), OPERATIONAL (area in hect.), PHASES (at the end of lease period) (area in hect.), Pits 0.0 21.80 177.46 Dump 0.0 7.24 17.00 Road/ 1.74 2.50 3.00 Building 0.00 5.50 5.50 Plantation 0.00 7.50 30.00 Mineral Stack 0.00 3.00 3.00 Remaining land 428.26 382.46 194.04 Total Area 430.00 430.00 430.00 About 50.0Ha areas will be planted in which 6.58 ha on barren land/ ML boundary, 23.42 ha at road side and 20.00 ha. On Dump area at the end of mine life. AVAILABLE GROUND WATER IN AREA: Analysis of different Samples of ground water shows that all parameter are well with in limit. AMBIENT AIR QUALITY MONITORING Sampling locations were established for ambient air monitoring in and around the core zone within a radius of 10.0 km, to study the present quality of the air. From 136 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
the baseline monitoring result, it is observed that the monitored parameters (PM10,
PM2.5, and SO2&NO2) are within the permissible limits as per NAAQS, 2009 during the study period. NOISE MONITORING OF AREA: During the study period ambient noise level were monitored and are within CPCB Noise standard.
BIOLOGICAL ENVIRONMENT: following plants & animals has been reported in the area Gamari, Bhelu, Badam, Sundi, Sida, Mangoose, Pig, Rat, Dove, Pigeon etc.
S. No. Local Name Botanical Name 1. Gamari Gamolina arborea 2. Bogipoma Chirassia tabularia 3. Bhelu Tettramalia nudiflora 4. Hilika Terminalia chedula 5. Badam Mansonia dipikae 6. Khokon Duabanga sonnerationdes 7. Sundi Michelia chapace 8. Sam Atrocarpus Chaplasa 9. Amra Ammora wallichil 10. Koroi Albiziza procera 11. Aldu Adina cordifoilia 12. Sida Lagaertroamia parviflora 13. Bonsum Phoeba goalperendia 14. Bohera Terminalia belerica 15. Ghogra Schima wallichil 16. Dhuna Canarium spp. 17. Parauli Sterosperrmum Chelonides 18. Uriam Bischofia javanica 19. Teak Tectona grandis 20. Ashoka Polyalthia longifolia 21. Mango Mangifera indica 22. Neem Azadirachta indica 23. Amaltas Cassia fistula 24. Silver oak Gravalia robusta 25. Banana Musa pudica 26. Guava Psidium guava 27. Lemon Citrus lemon 28. Thuja Thuja spp. 29. Peepal Ficus religiosa
137 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
SOCIO ECONOMIC ENVIRONMENT: Study has been conducted through filled survey and results reviled that area is very undeveloped, literacy rate is poor, unemployment. Health and sanitation problems.
10.8 ENVIRONMENT MONITORING CELL The monitoring will be taken up by the supervisory officers of the mine. Mine manager will be in charge of the environment cell and will be responsible for the effective functioning of the monitoring programme. The environmental data will be monitored by an outside agency. Monitoring will be done twice in year. 10.9 ENVIRONMENT MANAGEMENT PLAN At the end of mine life about 50.0ha area will used for plantation. Air pollution management: 1. Water sprinkling will be done on haul road. 2. Planation will be done along lease boundary & with the lease area. 3. All vehicles will be regularly maintained. 4. Air quality will be regularly monitored. Water pollution management. 1. Water conservation measures have been proposed in the project to recover the rain water. 2. Suitable rainwater Storage is proposed at post operational phase. 3. No waste water will be generated & discharge to any water body. Noise & vibration Pollution Management 1. Proper planation along lease boundary. 2. Proper maintenance of Noise generating Machinery. 3. Provide PPE to workers (Ear muffs). Solid waste management Waste generated during plan period will be stored at the proposed site and will
be used for backfilling after sixth year.
138 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Green belt Development: Development of green belt along lease boundary, Only local species will be planted after discussion with local people. Socio- Economic Environment The proposed project would aid in the overall Social and economic development of the region. Mine project will enhance the economic status. Apart from employment this project shall provide medical & educational facilities to the employees and people living within the study area. Occupational health & safety measures The medical histories of all employees will be maintained as per mines rules, 1955. Thereafter, the employees will be subjected to medical examination on annual basis. Apart from that rest shelters, potable drinking water, wash room will be provided, Personal protective devices will be provided to the workers. Amount of Rs 11.0 lac will be spend per year for EMP Amount of RS 12.0 lac will be spent for CSR
139 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
CHAPTER – XI
CONSULTANTS ENGAGED (RQP/UDP/354/2009/B)
The consultant engaged for the preparation of the EIA/EMP of the project is M/s Udaipur Min-Tech Pvt. Ltd. The information about the company with address is as follows:
INTRODUCTION:
Realizing the need for multi-disciplinary and progmatic approach to mine development and mine environment management, a few dedicated Mining engineers & Geo-scientists with decades of practical experience started M/S Udaipur Min-Tech Pvt. Ltd. company as a consultancy organization in 1994 registered as company with the Registrar of Companies, Rajasthan and got recognized (RQP/UDP/354/2009/B) from Indian Bureau of Mines, Ministry of Mines, Govt. of India and ISO 9001:2008, 14001:2004, & 18001:2007 Certified Company and accreditation by NABET “A’’ category for open cast mines. Today it has grown not only to handle anything in mining of non-fuel minerals but ready to face any challenging environmental assignment in the field of mining industry and modification of varied industries and environmental clearance of diverse industries.
M/s Udaipur Min-Tech Pvt. Ltd. Provides services in the field of Environmental impact assessment and management for Mining area.
OUR SERVICES: We provide wide range of services. These include: At Mining Services:-
Evolution of Mineral property and feasibility studies. Preparation of Mining Plan, Scheme of Mining with Mine Closure Plan(Progressive & Final) as per MCR1960, MCDR 1988 &GCDR 1999. Up gradation & Processing of Non-Metallic Minerals. 140 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
At Environmental Services: EIA / EMP report. Monitoring of Ambient Air quality, Stack emissions, Work zone air quality, Source monitoring and Control. Monitoring of water, Waste water, and Pollution source identification and control process. Monitoring of Soil Quality, Noise level, Solid waste or Sludge quality. Environmental audit, Industrial risk assessment and risk management and hazardous waste management. ACHIEVEMENTS:- The Udaipur Min-Tech Pvt. Ltd.(UMTPL) in a short period after its inception has prepared more than 1000 Mining Plan and Scheme of mining with Progressive Mine Closure/Final Mine Closure Plan of various minerals in Rajasthan, Gujarat, Himachal Pradesh, Assam & M.P. and more than 950 of them have already approved from IBM- Udaipur/Dehradun/Ajmer/Nagpur, Deptt. Of Mines & Geology-Rajasthan, Deptt.of Geology & Mining –Gandhinagar (Gujarat), Deptt. of Geology& Mining- Bhopal(MP).
UMTPL has conducted Mine Surveys, Geological Mapping, Geological reserves as per UNFC, Mine Planning, Environment monitoring for various mines in different states of India as well as Abroad.
UMTPL has prepared during year 2000-01 to 2010-11, more than 150 EIA/EMP report of various major mineral mines for MOEF, New Delhi, SEIAA – Jaipur, SEIAA-Gandhinagar, SEIAA-Shimla and 100 of them have already secured approval & Environmental clearance. The 25 EMP in cluster approved from Dist. Level Environment Committee in Rajasthan as per RMMCR -2012.
141 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
The UMTPLhas also prepared during year 2012-13, more than 50 EC cases of minor mineral mines for SEIAA-Jaipur, SEIAA-Gandhinagar, SEIAA-Shimla, SEIAA-Haryana & Panjab & SEIAA-Mumbai.
THE CORE TEAM: The key persons of team are: 1) Mr. S. S. BIST– M.Sc. (Geology), M.Tech. (Applied Geology) & PG Diploma in Environment & Ecology, RQP (IBM), MMGI, FGSI etc. having 20 years professional experience of survey and geological mapping, prospecting & mine planning for various non-metallic/metallic minerals, preparation of pre-feasibility& feasibility report, preparation of Mining plan/Scheme of Mining with PMCP/FMCP, Preparation of EIA/EMP report and mining of Granite, Marbles etc. 2) Mr. B. L. MOD- Diploma in Mining and AMIE(Mining) with First Class Mine Manager Certificate of competency (Unrestricted), Certified Mine Surveyor’s Certificate of competency (Unrestricted), RQP(IBM), MMGI, C. Engg. MIE, MMEA, having 45 years working experience in field of mining viz underground as well as opencast mine of various metallic and non-metallic mineral in India as well as abroad. Preparation of Mining plan/Scheme of Mining with PMCP/FMCP, preparation of EIA/EMP report. 3) Mr. S. K. MOHTA – Diploma in Mining with First Class Mine Manager Certificate having 45 years working experience in field of mining viz underground as well as opencast mine of various metallic and non-metallic mineral in India as well as abroad
4) Mr. U. C. SHARMA-M.E in Environmental Engineering, B.E in Civil Engineering, MBA in H.R, having 20 years’ experience in field of Civil Environment Engineer. Preparation of EIA/EMP report of Mining Project. Besides, our team of Professionals is given below : 1 Mr. Ashok Kumar Pardesi Diploma in Mining & Certified Surveyor. 2 Mrs Rashmi Shrimali M. Sc.(Chemistry) 3 Mr. Narottam kumawat M. Sc.(Geology) 4 Mr. Jitendra Singh Sankhala B.E.(Mining) 5 Mr. Rajveer Singh M.Sc.(Remote Sensing & GIS) 6 Mr. Ajeet singh M. Sc.(Geology) & PG diploma in Geo informatics
142 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
7 Ms. Swapnil M. Sc.(Geology) & PG diploma in Geo informatics
8 Ms. Deepika purohit M.Sc. Environment
9 Mrs Manisha Tanwar M.sc (Env. Science & PG Diploma in Env. Management in Industries & Mining) 10 Naveen Kumar Meena M.A. (Political Science) 11 Mast Ram Suthar M .Sc Geology 12 Lakshmi Lal Meghwal Diploma in Draftsman & Certified Surveyor. 13 Harish Kumar Pardesi Drafts man & AutoCAD Master. 14 Praveen Koted Computer Operator & AutoCAD Master. 15 Madan Lal Dangi Computer Operator & AutoCAD Master. 16 Anil Damor Computer Operator & AutoCAD Master. 17 LokeshMenaria Computer Operator & AutoCAD Master. 18 Mr. Vishal soni Computer Operator & AutoCAD Master.
CONTACT PERSON - S. S. BIST
206 “APEKSHA COMPLEX”
HIRAN MAGRI, SECTOR-11
UDAIPUR – 313002 (RAJ.)- INDIA
PHONE - +91-294-2489672(OFF), MOBILE - +9194141 67672
E mail :[email protected]
Visit us at: www.udrmintech.com
143 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
ANNEXURES
144 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure I
145 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure II
146 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure III
147 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
148 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
149 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
150 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
151 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
152 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
153 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
154 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure IV
155 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure V
156 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure VI
157 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure VII
158 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
Annexure VIII
159 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
ANNEXURE NO.IX
160 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
161 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
162 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
163 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
164 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
165 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd
Environment Impact Assessment & Environment Management Plan for New Umrangshu limestone area
Near Village & Tehsil – Umrangshu, District- Dima Hasao (Assam), Area- 430.0 hectare, Proposed Production – 2.0 Million TPA (ROM.)
166 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. Assam Mineral Development Corporation Ltd