Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

STUDY PERIOD – DEC. 2013 TO FEB 2014 & DEC. 2017 TO Feb. 2018 NON FOREST LAND

ENVIRONMENTAL IMPACT ASSESSMENT & ENVIRONMENTAL MANAGEMENT PLAN

NAME OF THE MINE – NEW UMRANGSHU LIMESTONE MINE NEAR VILLAGE – NEW UMRANGSHU, TEHSIL- UMRAMGSHU DISTT – DIMA HASAO (N.C. HILLS), ASSAM LEASE AREA– 200.00 HECT, PROJECT COST – 260 LAC CATEGORY - “A”

PURPOSE:

Proposed Production -4,44,500 tonnes/annum (ROM)

LESSEE EIA CONSULTANT M/s ASSAM MINERAL DEVELOPMENT CORPORATION LTD M/s UDAIPUR MINTECH PVT. LTD. KHANIJ BHAWAN, BEHIND 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.),+919414167672 (M) Ph. 91-361-2384078 (Off.) Email- [email protected] Email- [email protected]

ACCREDITED BY NABET UNDER “A” CATEGORY FOR OPEN CAST MINES S.NO. 163

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 1 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 2 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 3 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CONTENTS

CHAPTER PARTICULARS PAGE NO. NO. COMPLIANCE TO TERM OF REFERENCE (TOR) 12-24 I INTRODUCTION 25-40 II PROJECT DESCRIPTION 41-59 III DESCRIPTION OF THE ENVIRONMENT 60-137 IV ANTICIPATED ENVIRONMENTAL IMPACTS 138-160 & MITIGATION MEASURES V ANALYSIS OF ALTERNATIVES (TECHNOLOGY 161-161 & SITE) VI ENVIRONMENTAL MONITORING PROGRAM 162-166 VII ADDITIONAL STUDIES 167-178 VIII PROJECT BENEFITS 179-181 IX ENVIRONMENTAL MANAGEMENT PLAN 182-205 X SUMMARY & CONCLUSION 203-206 XI DAMAGE ASSESSMENT, REMEDIATION PLAN 207-228 & NATURAL & COMMUNITY RESOURCE AUGMENTATION PLAN(NCRAP) XI CONSULTANTS ENGAGED 229-233

- QUESTIONNAIRE 234-271

- ANNEXURES

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 4 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

INDEX S. NO. PARTICULAR PAGE NO. CHAPTER – I INTRODUCTION (22-33) 1.1 PURPOSE OF REPORT 22 1.2 PROJECT PROPONENT 23 1.3 BRIEF PROJECT DESCRIPTION 25 1.4 PRODUCTION DETAILS 26 1.5 LOCATION AND COMMUNICATION 27 1.6 OBJECTIVES OF ENVIRONMENTAL MANAGEMENT 28 PLAN 1.7 MARKET POTENTIAL 29 1.8 METHODOLOGY FOR EIA 29 1.9 SCOPE OF THE STUDY 30 1.10 TERMS OF REFERENCE 33 CHAPTER – II PROJECT DESCRIPTION (34-52) 2.1 BRIEF DESCRIPTION & NATURE OF PROJECT 34 2.2 NEED OF THE PROJECT 34 2.3 LOCATION OF THE PROJECT 34 2.4 TOPOGRAPHY, DRAINAGE PATTERN 34 2.5 DEMAND-SUPPLY GAP 35 2.6 DOMESTIC/EXPORT MARKET 35 2.7 GENERAL GEOLOGY & LOCAL GEOLOGY 36 2.8 ESTIMATION OF RESERVES & MINEABLE 40 RESERVES 2.9 PROPOSED METHOD OF MINING 44 2.10 EXTENT OF MECHANIZATION 45 2.11 QUANTUM OF DEVELOPMENT & TONNAGE OF 48 PRODUCTION 2.12 USE OF MINERALS 49 2.13 UTILITIES AND PROPOSED SITE FACILITIES 50 CHAPTER – III DESCRIPTION OF THE ENVIRONMENT (35-126) 3.1 GENERAL 53 3.2 STUDY AREA AT A GLANCE 54 3.3 TOPOGRAPHY 56 3.4 CLIMATIC CONDITION 58 3.5 PHYSIOGRAPHY 58 3.6 HUMAN SETTLEMENT 61 3.7 HYDROLOGICAL ASPECT 61 3.8 ATMOSPHERIC CONDITION 62 3.9 METEOROLOGY 62 3.10 AMBIENT AIR ENVIRONMENT 68 3.11 NOISE ENVIRONMENT 80

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 5 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.12 SOIL ENVIRONMENT 85 3.13 WATER ENVIRONMENT 89 3.14 BIOLOGICAL ASPECTS 95 3.15 LAND ENVIRONMENT 111 3.16 SOCIO – ECONOMIC ENVIRONMENT 117 3.17 SOCIO-ECONOMIC SURVEY 126 CHAPTER – IV ANTICIPATED ENVIRONMENTAL IMPACTS & MITIGATION MEASURES(129-147) 4.1 INTRODUCTION 129 4.2 TOPOGRAPHY & DRAINAGE 130 4.3 IMPACT ON CLIMATE 130 4.4 IMPACT ON AIR ENVIRONMENT 131 4.5 IMPACT ON NOISE LEVEL 140 4.6 IMPACT ON WATER QUALITY 140 4.7 IMPACT ON FLORA 142 4.8 IMPACT ON FAUNA 143 4.9 IMPACT ON LAND ENVIRONMENT 143 4.10 IMPACT ON SOIL 145 4.11 IMPACT ON SOCIO-ECONOMIC ENVIRONMENT 145 4.12 STRUCTURED ENVIRONMENT MANAGEMENT 146 ACTION PLAN

CHAPTER –V ANALYSIS OF ALTERNATIVES (TECHNOLOGY & SITE ) 5.1 SITE ALTERNATIVES 148 5.2 TECHNOLOGY ALTERNATIVE 148

CHAPTER – VI ENVIRONMENTAL MONITORING PROGRAMME (149-153) 6.1 INTRODUCTION 149 6.2 PROPOSED SET UP 149 6.3 ENVIRONMENT MANAGEMENT CELL 150 6.4 ENVIRONMENTAL POLICY 150 6.5 MONITORING SCHEDULE AND PARAMETERS 152 6.6 BUDGETARY PROVISION FOR ENVIRONMENTAL 152 MANAGEMENT CHAPTER – VII ADDITIONAL STUDIES(154-165) 7.1 INTRODUCTION 154 7.2 PUBLIC CONSULTATION 154 7.3 RISK ASSESSMENT AND DISASTER MANAGEMENT 159 PLAN 7.4 CARE AND MAINTENANCE DURING TEMPORARY 162 DISCONTINUANCE 7.5 SOCIAL IMPACT ASSESSMENT , R&R ACTION PLAN 164 7.6 DISASTER PREVENTION MEASURES 164 CHAPTER – VIII PROJECT BENEFITS(166-168)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 6 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

8.1 INTRODUCTION 166 8.2 IMPROVEMENT IN SOCIAL INFRASTRUCTURE 166 8.3 IMPROVEMENT IN PHYSICAL INFRASTRUCTURE 166 8.4 HEALTH AND SAFETY 167 8.5 EMPLOYMENT POTENTIAL 167 8.6 CONCLUSION 168 CHAPTER – IX ENVIRONMENT MANAGEMENT PLAN (169-191) 9.1 INTRODUCTION 169 9.2 LAND RECLAMATION 170 9.3 AIR POLLUTION CONTROL MEASURES 172 9.4 NOISE POLLUTION CONTROL MEASURES 174 9.5 WATER POLLUTION CONTROL MEASURES 176 9.6 CONTROL MEASURES OF ECOLOGICAL FACTOR 177 9.7 STABILIZATION & VEGETATION OF DUMPS 178 9.8 TREATMENT & DISPOSAL OF WATER FROM MINE 180 9.9 SOIL CONSERVATION MEASURES 180 9.10 PROGRAMME OF AFFORESTATION 181 9.11 MEASURES FOR PROTECTING HISTORICAL 186 MONUMENTS & REHABILITATION 9.12 MEASURES TO IMPROVE SOCIAL – ECONOMIC 186 CONDITION 9.13 CORPORATE SOCIAL RESPONSIBILITIES 188 9.14 OCCUPATIONAL SAFETY & HEALTH 189 9.15 TRAINING AND HUMAN RESOURCES 190 DEVELOPMENT 9.16 ENVIRONMENT MANAGEMENT CELL 191 CHAPTER – X SUMMARY & CONCLUSION(203-206) 10.1 INTRODUCTION 203 10.2 AVAILABILITY OF FUNDS FOR 203 ENVIRONMENTAL PROTECTION MEASURES 10.3 DETAILS OF THE PROJECT 204 10.4 IMPLEMENTATION SCHEDULE 204 10.5 BUDGETARY PROVISION FOR ENVIRONMENTAL 205 MANAGEMENT 10.6 GREENBELT DEVELOPMENT 206 10.7 RECOMMENDATION 206 CHAPTER-XI 11.0 ASSESSMENT OF ECOLOGICAL DAMAGE , 207 REMEDIATION PLAN AND NATURAL AND COMMUNITY RESOURCE AUGMENTATION PLAN 12.0 DISCLOSURE OF CONSULTANTS ENGAGED 229

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 7 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

LIST OF TABLES TABLE PARTICULAR PAGE NO. NO. 1.1 LIST OF BOARD OF DIRECTORS 24 1.2 PRODUCTION DETAILS 26 1.3 PROJECT DETAILS 26 1.4 DATA GENERATION 30 2.1 LOCATION OF THE PROJECT 34 2.2 REGIONAL STRATIGRAPHIC SEQUENCE 36 2.3 LOCAL STRATIGRAPHIC SEQUENCE 38 2.4 CHEMICAL COMPOSITION 40 2.5 MEASURED MINERAL RESOURCES 41 2.6 RESERVE CALCULATION 41 2.7 PRESENTATION OF MINERAL LIMESTONE 44 RESOURCES 2.8 MINEABLE RESOURCES 44 2.9 OPERATING PARAMETERS 45 2.10 EQUIPMENT REQUIRED 46 2.11 BLASTING PARAMETERS 47 2.12 PRODUCTION & WASTE GENERATION 49 2.13 CHEMICAL SPECIFICATIONS 49 2.14 PEAK WATER REQUIREMENT 50 3.1 STUDY AREA AT A GLANCE 54 3.2 MEAN TEMPERATURE & RELATIVE HUMIDITY 63 RECORDS FROM IMD STATION 3.2A TEMPERATURE RECORDS AND RELATIVE 63 HUMIDITY AT MINE SITE 3.2B MEAN TEMPERATURE & RELATIVE HUMIDITY 64 (DEC. 2017 to FEB. 2018) 3.2C TABLE 3.2C: MEAN TEMPERATURE & RELATIVE 64 HUMIDITY (DEC. 2017 to FEB. 2018) 3.3 LOCATION OF AMBIENT AIR MONITORING 68 STATIONS 3.4 PROCEDURE FOR DETERMINING VARIOUS AIR 70 QUALITY PARAMETERS 3.5 AMBIENT AIR QUALITY (PM10 24- HR CONC.) 71 3.6 AMBIENT AIR QUALITY (SOX 24- HR CONC.) 72 3.7 AMBIENT AIR QUALITY (NOX 24- HR CONC.) 73 3.8 COMPARISON OF AIR MONITORING RESULTS 74 3.8A AMBIENT AIR QUALITY (Dec. 2017 to Feb. 2018) 75 3.9 LOCATION OF NOISE MONITORING STATIONS 81 3.10 NOISE LEVEL WITHIN THE STUDY AREA 83 3.10A NOISE LEVEL WITHIN THE STUDY AREA 83 3.11 CPCB NOISE STANDARDS 84 3.12 TRAFFIC DENSITY 84 3.13 LOCATION OF SOIL MONITORING STATIONS 85

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 8 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.14 SOIL SAMPLE ANALYSIS 88 3.14A SOIL ANALYSIS RESULTS 88 3.15 GROUND & SURFACE WATER SAMPLING 90 LOCATION 3.16 ANALYSIS RESULTS OF GROUND WATER SAMPLE 92 3.16A ANALYSIS RESULTS OF SURFACE WATER SAMPLE 93 3.17 ANALYSIS RESULTS OF SURFACE WATER SAMPLE 93 3.17A ANALYSIS RESULTS OF GROUND WATER SAMPLE 94 3.18 LIST OF PLANT SPECIES RECORDED IN THE 103 STUDY AREA 3.19 LIST OF MEDICINAL PLANTS SPECIES OBSERVED 106 IN THE STUDY AREA 3.20 LIST OF FAUNA SPECIES OBSERVED IN THE 107 STUDY AREA 3.21 LIST OF BIRD SPECIES OBSERVED IN THE STUDY 109 AREA 3.22 LAND USE PATTERN ON SATELLITE IMAGE 114 3.23 LAND USE PATTERN – PRE OPERATIONAL, 117 OPERATIONAL & POST OPERATIONAL PHASE 3.24 DEMOGRAPHIC STRUCTURE 120 3.25 LITERATE AND ILLITERATE POPULATION 121 DETAILS 3.26 EMPLOYMENT PATTERN 123 3.27 MAIN WORKER EMPLOYMENT PATTERN 124 4.1 LAND USE PATTERN – PRE OPERATIONAL, 144 OPERATIONAL & POST OPERATIONAL PHASE 4.2 ENVIRONMENTAL MANAGEMENT MATRIX 146 6.1 MONITORING SCHEDULE FOR 152 ENVIRONMENTAL PARAMETERS 6.2 COST OF ENVIRONMENT PROTECTION MEASURES 153 7.1 MINUTES OF PUBLIC HEARING 155 8.1 EMPLOYMENT POTENTIAL 168 9.1 LAND USE OF ML AT THE END OF LEASE 171 PERIOD 9.2 RECLAIMED LAND IN DIFFERENT STAGES 172 9.3 WASTE GENERATION DURING PLAN PERIOD 178 9.4 STAGE WISE PLANTATION PROGRAMME 181 9.5 SCHEDULE OF PLANTATION 182 9.6 BUDGETARY PROVISION FOR SOCIAL 188 DEVELOPMENT ACTIVITIES 10.1 PROJECT DETAILS 204 10.2 MONITORING SCHEDULE FOR ENVIRONMENTAL 205 PARAMETERS 10.3 COST OF ENVIRONMENTAL PROTECTION 205 MEASURES 11.1 PROGRESSIVE GREEN BELT DEVELOPMENT (HA) 220 11.2 COST PROVISION OF EMP 224 11.3 PROPOSED CSR ACTIVITIES 225

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 9 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

LIST OF FIGURES FIG NO. PARTICULAR PAGE NO. 2.1 WATER BALANCE DIAGRAM 50 3.1 TOPOGRAPHY MAP OF THE STUDY AREA 57 3.2 DRAINAGE PATTERN OF THE STUDY AREA 60 3.3 WIND ROSE DIAGRAM 66 3.4 AIR MONITORING SAMPLING LOCATION MAP 69 3.5 NOISE AND TRAFFIC DENSITY MONITORING 82 SAMPLING LOCATION MAP 3.6 SOIL MONITORING SAMPLING LOCATION MAP 87 3.7 SCHEMATIC REPRESENTATION OF SITE 90 ELEVATION, ULTIMATE DEPTH & GROUND WATER 3.8 WATER SAMPLING LOCATION MAP 91 3.9 PHOTOGRAPH OF MINE LEASE AREA 96 3.10 VEGETATION OBSERVED IN THE LEASE AREA 101 3.11 LAND USE PATTERN OF THE STUDY AREA 115 3.12 SATELLITE IMAGE OF THE STUDY AREA 116 3.13 POPULATION DETAILS IN THE STUDY AREA 122 3.14 SEX RATIO IN THE STUDY AREA 122 3.15 LITERATE & ILLITERATE POPULATION IN THE 122 STUDY AREA 3.16 EMPLOYMENT PATTERN IN THE STUDY AREA 125 3.17 MAIN WORKER EMPLOYMENT PATTERN IN THE 125 STUDY AREA 4.1 GROUND LEVEL CONCENTRATION OF AMBIENT AIR QUALITY IN OPERATION PHASE 1KM FOR 138 PM10 4.2 GROUND LEVEL CONCENTRATION OF AMBIENT AIR QUALITY IN OPERATION PHASE 10KM FOR 138 PM10 6.1 ENVIRONMENT MANAGEMENT CELL 150 11.1 WORKING POSITION UP TO 31ST MARCH 2001 210 11.2 WORKING POSITION UP TO 01ST APRIL 2001 TO 12TH 211 JAN. 2012 11.3 GOOGLE IMAGE AS ON MARCH 2001 212 11.4 GOOGLE IMAGE AS ON JAN. 2012 212

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 10 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

LIST OF ANNEXURE ANNEX PARTICULAR NO. I COPY OF TOR LETTER OLD DATED 06/12/2013 IA COPY OF TOR LETTER NEW DATED 12/04/2017 IB COPY OF ADDITIONAL TOR DATED 15/09/2020 II COPY OF CERTIFICATE OF INCORPORATION OF THE COMPANY III COPY OF BOARD RESOLUTION IN FAVOR OF NOMINATED OWNER IV COPY OF LIST OF BOARD OF DIRECTORS V COPY OF PHOTO ID AND ADDRESS PROOF OF THE NOMINATED OWNER VI COPY OF LEASE GRANT ORDER OF 33 HA. LAND VII COPY OF LEASE DEED FOR 33 HA. VIII COPY OF LEASE GRANT ORDER OF 167 HA. LAND IX COPY OF LEASE DEED FOR 167 HA. X COPY OF APPROVAL LETTER FOR AMALGAMATION OF LEASES XI COPY OF APPROVAL LETTER OF MINING PLAN XII COPY OF MINING LEASE GRANT ORDER 200 HECT. XIIA COPY OF AUTHENTICATED PRODUCTION FIGURES XIII COPY OF ANALYSIS REPORT XIV COPY OF LETTER TO AUTHANTIC LIST OF FLORA AND FUNNA XV COPY OF MINUTES OF PUBLIC HEARING & PICS

LIST OF PLATES PLATE NO. PARTICULAR 1 LOCATION MAP 2 KEY PLAN 3 SURFACE PLAN 4A GEOLOGICAL PLAN 4B GEOLOGICAL SECTIONS 5A SURFACE LAYOUT PLAN 5B LAYOUT SECTIONS 6 CONCEPTUAL PLAN & SECTIONS

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 11 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

POINTS TO BE CLARIFIED TO THE MINISTRY OF ENVIRONMENT & FORESTS, GOVT OF INDIA AS PER THE APPROVED TOR FOR NEW UMRANGSHU LIMESTONE MINE OF M/S ASSAM MINERAL DEVELOPMENT CORPORATION LTD. ASSAM, LEASE AREA 200.00 HECTARE. A STANDARD TOR S. SUGGESTED TOR BY EAC COMPLIANCE No. 1 Year-wise production details Year M.T. Year M.T. since 1994 should be given, 1994-95 Nil 2003-04 -- clearly stating the Highest production achieved in any one 1995-96 99056.470 2004-05 -- year prior to 1994. It may also 1996-97 56271.040 2005-06 700.000 be categorically informed 1997-98 45748.700 2006-07 2720.100 whether there had been any 1998-99 25817.370 2007-08 23813.190 increase in production after the 1999-00 47149.980 2008-09 19783.23 EIA Notification, 1994 came 2000-01 39233.570 2009-10 44882.190 into force w.r.t. the highest 2001-02 29584.250 2010-11 39120.220 production achieved prior to 1994. 2002-03 Nil 2011-12 16874.72* *Production stopped since Jan. 2012 till Now. Year- wise production details since 1994-95 is given in Chapter I, para. 1.4 table 1.2 on page no. 26 of EIA-EMP Report. Authenticated production figures are enclosed as Annexure – XII. 2 A copy of the document in Copy of the document in support of the fact that the support of the fact that the proponent is the rightful lessee of the mine details is proponent is the rightful lessee given in Annexure II to X of EIA-EMP Report. of the mine should be given. 3 All document including Copy of the document in support of the fact that the approved mine plan, EIA and proponent is the rightful lessee of the mine details is public hearing should be given in Annexure II to X of EIA-EMP Report. compatible with one another in During the plan period about 481840 cum. waste terms of the mine lease area, generated and management with A stone parapet production levels, waste wall will be constructed all around the waste dump. generation and its management The wall will prevent any roll out of stones from and mining technology and dump. A garland drain will also be constructed all should be in the name of the around the dump. This drain will arrest any wash lessee. out from the dump reaching the natural drainage system. For more details is given in Chapter IX, para. 9.7 on page no. 178 of EIA-EMP Report. 4 All corner coordinates of the All corner coordinates of the mine lease area, mine lease area, superimposed superimposed on a high Resolution Imagery / on a high Resolution Imagery / toposheet is incorporated. For more details please toposheet should be provided. refer Chapter III, para. 3.15.1, fig. 3.11 & 3.12on Such an Imagery of the page no. 115 to 116 of EIA-EMP Report. Also refer proposed area should clearly plate of surface plan. show the land use and other ecological features of the study area (core and buffer zone). 5 Information should be provided Key plan (on Survey of India Toposheet) showing in survey of India Toposheet in geomorphology, important water bodies, stream, 1;5000 scale indicating river & soil characteristics is enclosed with plates. geological map of area, Drainage map also attached as figure no. 3.2 on Pg- geomorphology of land forms of the area, existing minerals and 60.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 12 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

mining history of the area, Surface Geological plan showing Geology & existing important water bodies, minerals & mining history is also enclosed with streams and rivers and soil plates. characteristics. 6. Details about the land proposed Mining is proposed on Govt. waste land and mining for mining activities should be will be done as per the approved mining plan given with information as to conditions stipulated in lease deed. whether mining conforms to the land use policy of the state, land diversion for mining should have approval from state land use board or concerned authority. 7. It should be clearly stated M/s. AMDC is committed to providing a quality in a whether the proponent manner that ensure a safe and healthy workplace for company has a well laid down employees and minimize potential impact on the Environment policy approved environment. For more details about the company by its Board of directors? If so, policy and environment management cell is given in it may be spelt out in the EIA Chapter VI, para 6.2, 6.3 & 6.4 on page no. 149 to report with description of the 150 of EIA-EMP Report. prescribed operating Board of directors of the company details given in process/procedures to bring into Chapter I, para. 1.2, table 1.1 on page no. 24 & also focus any Annexure No. IV of EIA-EMP Report. infringement/deviation/violation of the environmental of forest Norms/conditions? The hierarchical system or administrative order of the company to deal with the environmental issues and for ensuring compliance with the EC Conditions may also be given. The system of reporting of noncompliance/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. 8 Issues relating to the mine All safety measures as prescribed under MMR 1961 safety, including subsidence and circulars issued by DGMS. study, blasting study etc. should be detailed. The proposed safeguard measures in each case should be provided. 9 The study area will comprise of The study area comprises of 10 km zone around the 10 km zone around the mine mine lease boundary year-wise accretions of lease from lease periphery and overburden is given below: the data contained in the EIA Waste in cum such as waste generation etc. Year In-situ volume Broken rock volume should be for the life of the mine/ lease period. I 109870 142831 II 70150 91195 III 99910 129883 IV 106390 138307 V 95480 124124 Total 481800 626340

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 13 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Waste generated during plan period and afterwards will be stored at the proposed site. A stone parapet wall will be constructed all around the waste dump. The wall will prevent any roll out of stones from dump. A garland drain will also be constructed all around the dump. This drain will arrest any wash out from the dump reaching the natural drainage system. There is no proposal for backfilling. For more details please refer Chapter IX, para. 9.7 on page no. 178 of EIA-EMP Report. 10 Land use of the study area Land use of the study area delineating forest area, delineating forest area, water bodies, open scrub land, Fallow land, agricultural land, grazing land, Habitation, Open Degraded land based on satellite wildlife sanctuary, national image. park, migratory routes of fauna, Class Names Area (Ha.) % (Area) water bodies, human Water Bodies 1082.79 2.57 settlements and other ecological Open Scrub Land 1152.00 2.74 features should be indicated. Fallow Land 3190.59 7.58 Land use plan of the mine lease Habitation 566.28 1.34 area should be prepared to Forest 25603.02 60.79 encompass preoperational, Open Degraded 10522.44 24.98 operational and post operational Total 42117.12 100 phases and submitted. Impact, For more details please refer Chapter III, para. if any, of change of land use 3.15.1, on page no. 111 of EIA-EMP Report. should be given. Land use plan of the mine lease area is prepared to encompass pre-operational, operational and post operational phase is given below. All figures in Hect. At the At the end of Description Existing end of lease 5th year period Pits 6.390 26.040 90.720 Waste 3.190 6.200 10.000* Dump Road & 2.138 3.010 4.000 Building Plantation 5.180 15.180 27.800** Remaining 183.102 149.570 67.480 Land Total area 200.00 200.00 200.00 * At the end of lease period total 65.180 ha. area will be planted which includes 5.180 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area. For more details is given in Chapter III, para. 3.15.2, table 3.23 on page no. 117 of EIA-EMP Report. 11 Details of the land for Over About 10 hect. area will be used for dump, no outside Burden Dumps outside the dump area is proposed & no R&R plan required. mine lease, such as extent of land area, distance from mine lease, its land use, R&R issues, if any, should be given. 12 A Certificate from the The lease area is govt. waste land. A biological study

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 14 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Competent Authority in the of the project is incorporated. Please refer Chapter State Forest Department III, para. 3.14, on page no. 95 of EIA-EMP Report. should be provided, confirming the involvement of the forest land, if any, in the project area. In the event of any contrary claim by the Project Proponent regarding the status of forest , the site may be inspected by the State Forest Department along with the Regional office of the Ministry to ascertain the status of forest, 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. 13 Status of forestry clearance for There is no forest land within the lease area. Hence, the broken up area and virgin no forest clearance is required. 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. 14 Implementation status of The lease area is Govt. waste land. recognition of forest rights under the Scheduled Tribes and other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006 should be indicated. 15 The vegetation in the RF/ PF Krungming Reserve Forest is about 2.0 km in west areas in the study area, with direction of the mining lease area. necessary details, should be given 16 A study shall be got done to Krungming Reserve Forest is about 2.0 km in west ascertain the impact of the direction of the mining lease area. Krungming RF mining Project on wildlife of the will not be affected due to mining activity. The study area and details impact of the project in the core zone area i.e. land furnished. Impact of the project degradation, dumping etc. on the wildlife in the surrounding and any other protected area and accordingly detailed mitigative measures required, should be worked out with cost implications and submitted. 17 Location of National parks , No National parks, Sanctuaries, Biosphere Reserves, Sanctuaries, Biosphere Wildlife Corridors, Tiger/ Elephant Reserves / Reserves, Wildlife Corridors , Critically Polluted Areas / Aravali (existing as well Tiger/ Elephant Reserves / as proposed) within 10 km of the mine lease area. Critically Polluted Areas / Krungming Reserve Forest is about 2.0 km in west Aravali (existing as well as direction of the mining lease area in the buffer zone.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 15 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

proposed ), if any, within 10 km So no clearance is required by Chief Wildlife of the mine lease should be Warden. clearly indicated , supported by a location map duly authenticated by Chief Wildlife Warden .Necessary clearance , as may be applicable to such project 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. 18 A detailed biological study of A detailed biological study of the study area [core the study area [core zone & zone & buffer zone (10 km radius of the periphery of buffer zone (10 km radius of the the mine lease)] has been carried out. Details of flora periphery of the mine lease)] & fauna based on such primary field survey given in shall be carried out. Details of report. For details please refer Chapter III, para. flora & fauna, duly 3.14 on page no. 95 of EIA-EMP Report. authenticated, separately for core and buffer zone should be furnished based on such primary field survey, clearly indicating the Schedule of the fauna present. In case of any scheduled –I fauna found in the study area , the necessary plan for their conservation should be prepared in consultation with State Forest and Wildlife Department and details furnished. Necessary allocation of funds for implementing the same should be made as part of the project cost. 19. Proximity to Areas declared as Not Applicable ‘Critically Polluted’ or the project areas likely to come under the ‘Aravali Range’, (attracting court restrictions for mining 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. 20. Similarly, for coastal projects, A Not Applicable. 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 16 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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). 17 Impacts, if any, of change of Topography of the surrounding area will remain land use should be given. unchanged. While that of mining lease area will change due to mining, excavation, dumping. POST MINING LAND USE OF CORE ZONE Activity Area In Ha. Pits 90.72*** Waste Dump 10.00* Road & Building 4.000 Plantation 27.80** Agriculture land -- Mineral stack -- Remaining Land 67.48 Total area 200.00 At the end of lease period total 65.180 ha. area will be planted which includes 5.180 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area. For more details please refer Chapter IX, para. 9.2, table 9.1 on page no. 171 of EIA-EMP Report. 21. R&R Plan/compensation details No R&R plan is required the socio-economic study is for the Project Affected People given in Chapter III, para. 3.16 on page no. 117 of (PAP) should be furnished. EIA-EMP Report. 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 min lease area will be shifted or not. The issues relating to shifting of village including their R&R and Socioeconomic aspects should be discussed in the report. 22 One season (non-monsoon) One season (non-monsoon) in winter season primary baseline data on (December, 2013 to February, 2014 and Dec. 2017 to ambient air quality (PM10 SO2 , Feb. 2018) primary baseline data on ambient air

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 17 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

& NOx), water quality , noise quality (PM10 SO2, & NOx), water quality, noise level, level , soil and flora & fauna soil and flora & fauna has been collected. Site shall be collected and the AAQ specific meteorological data also collected for more & other data so compiled details please refer Chapter III, on page no. 63 to presented date-wise in the EIA 126 of EIA-EMP Report. AAQ station in the study and EMP Report. Site-specific area is given in para. 3.4, fig. 3.4 on page no. 69. meteorological data should also be collected. The location of the monitoring stations should be such as to represent whole of the study area and justified keeping in view the predominant downwind direction and location of sensitive receptors. There should be at least one monitoring station within 500 m of the mine lease in the pre- dominant downwind direction. The mineralogical composition of PM10, particularly for free silica, should be given. 23 Air quality modeling should be Air quality modeling has been carried out for carried out for prediction of prediction of impact of the project on the air quality impact of the Project on the air of the area. For more details is given in Chapter IV, quality of the area. It should para. 4.4 on page no. 131 & Air sampling station is also take in to account the mark in Chapter III, fig.3.4 on page no. 69 of EIA- impact of movement of vehicles EMP Report. for transportation of mineral. The details of the model used and input parameters used for modeling should be provided. The air quality contours may be shown on a location map clearly indicating the location of the site, location of sensitive receptors, if any, and the habitation. The wind roses showing pre-dominant wind direction may also be indicated on the map. 24 The water requirement for the Water requirement for the project is 10.0 KLD and project, its availability and its availability from dug well/tube well outside the sources should be furnished. A lease area. detailed water balance should Drinking 1.5 KLD also be provided. Fresh water Dust suppression 4.5 KLD requirement for the Project Plantation 3.0 KLD should be indicated. Total 10.0 KLD A detailed water balance diagram and for more details please refer Chapter II, para 2.13, on page no. 50 of EIA-EMP Report. 25 Necessary clearance from the The water requirement for the project will be Competent Authority for drawl fulfilled by dug well/tube well outside the lease area. of requisite quantity of water So no clearance is required from competent for the project should be authority. provided. 26 Description of water About 56.820 hect. area will be used as a water conservation measures reservoir at the end of lease period. For more details

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 18 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

proposed to be adopted in the is given in Chapter IX, para. 9.5.3 on page no. 176 of project should be given. Details EIA-EMP Report. of rainwater harvesting proposed in the project, if any, should be provided. 27 Impact of the project on the During the mine operation surface water body will water quality, both surface and not be disturbed and not intersect the water table. groundwater should be assessed So no measures are required. and necessary safeguard measures, if any required should be provided. 28 Based on actual monitored No water table intersects while mining, hence no data, it may clearly be shown hydrological study is required. No permission is whether working will intersect required from Central Ground Water Authority for groundwater. Necessary data working below ground water and pumping of ground documentation in the regard water. may be provided. In case the Highest Lowest Ultimate Water level working will intersect ground elevation elevation depth water table, a detailed Hydro 295 mRL Geological Study should be (20 m bgl) undertaken and report Post furnished. Necessary 304 mRL monsoon 445 mRL 315 mRL permission from Central (11 m BGL) 290 mRL Ground Water Authority for (25 m bgl) working below ground water pre and pumping of ground water monsoon should also be obtained and For more details please refer Chapter III, para. copy furnished. 3.13.2 fig. 3.7 on page no. 90 of EIA-EMP Report. 29 Details of any stream, seasonal No diversion, modification is proposed of any stream. or otherwise, passing through For details please refer Chapter III, para. 3.3 fig. 3.1 the lease area and modification/ on page no. 56 of EIA-EMP Report. diversion proposed, if any, and the impact of the same on the hydrology should be brought out. 30 Information on site elevation, Highest Lowest Ultimate Water level working depth, groundwater elevation elevation depth table etc. should be provided 295 mRL both in AMSL and bgl. A (20 m bgl) 304 schematic diagram may also be Post monsoon 445 mRL 315 mRL mRL (11 provided for the same. 290 mRL m BGL) (25 m bgl) pre monsoon Information on site elevation, working depth, groundwater table has been incorporated both in AMSL and bgl. For more details please refer Chapter III, para. 3.13.2 fig. 3.7 on page no. 90 of EIA-EMP Report. 31 A time bound Progressive Time bound green belt plan is given in Chapter – IX Greenbelt Development Plan on Pg. no. 181. shall 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 19 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

the project. Phase-wise plan of plantation and compensatory afforestation should be charted clearly indicating the area to be covered under plantation and the species to be planted. The details of plantation already done should be given. The plant species selected for green belt should have greater ecological value and should be of good utility value to the local population with emphasis on local and native species and the species which are tolerant to pollution. 32 Impact on local transport No major impact on local transport infrastructure infrastructure due to the project due to the project. should be indicated. Projected Traffic vehicle No. of vehicles per day at increase in truck traffic as H.M.V. 086 result of the Project in the L.M.V. 118 present road network 2/3 wheelers 134 (including those outside the Grand Total 338 Project area) should be worked For more details of the traffic density is given in out, indicating whether it is Chapter III, para. 3.11.4 on page no. 77 of EIA-EMP capable of handling the Report. incremental load. Arrangement for improving the infrastructure, if contemplated (including action to be taken by other agencies such as State Government) should be covered. 33 Details of the onsite shelter and Details of the onsite shelter and facilities will be facilities to be provided to the provided as per mines rules to the mine workers. For mine workers should be more details please refer Chapter II, para. 2.13 on included in the EIA report. page no. 50 of EIA-EMP Report. 34 Conceptual post mining land At the end of lease period total 65.180 ha. area will use and reclamation and be planted which includes 5.180 hect area along Restoration of mined out areas lease boundary/ barren land, 10.0 hect around office (with plans and with adequate and magazine site, 12.62 hect on either side of number of sections) should be Amreng nallah, 27.38 hect on mined out benches and given in the EIA Report. 10.0 ha. on dump area. For more details please refer Chapter IX, para. 9.2, table 9.1 on page no. 171 of EIA-EMP Report. 35 Occupational health impact of The Occupational health and safety of all employees the project should be will be maintained as per mines rules 1955, chapter anticipated and the proposed – IV. Other preventative measures like rest shelter, preventive measures spelt out drinking water, toilets, rotation of workers exposed in detail. Details of pre- to noisy area etc. For more details please refer placement medical examination Chapter IX, para. 9.14 on page no. 189 of EIA-EMP and periodical medical Report. examination schedules should be incorporated in the EMP. The project specific occupational health mitigation measures with required facilities proposed in the mining area may be detailed.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 20 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

36 Public health implications of Public health implications of the project and related the project and related activities for the populations in the impact zone will activities for the populations in be systematically evaluated details given in Chapter the impact zone should be IX, para. 9.13 on page no. 188 and the recurring systematically evaluated and budgetary allocation for occupational health is 0.75 the proposed remedial lack/year. For more details please refer Chapter X, measures should be detailed para. 10.5, table. 10.3 on page no. 194 of EIA-EMP along with budgetary allocation. Report. 37 Measures of socio economic Measures to improve socio economic conditions will significance and influence to be positive and generated employment for local the local community proposed population, reduction in the migration of jobless to be provided by the Project laborers from native place to other distant place. Proponent should be indicated. About 36 persons will be engaged in mining As far as possible, quantities operations. For more details please refer Chapter IX, dimensions may be given with para. 9.12 on page no. 186 of EIA-EMP Report. time frames for implementation. 38 Detailed environmental Detailed environmental management plan to management plan to mitigate mitigate the environmental impacts has been the environmental impacts prepared. For more details please refer Chapter IX which, should inter-alia include on page no. 169 to 191 of EIA-EMP Report. the impacts of change of land use , loss of agriculture and grazing land, if any, occupational health impacts besides other impacts specific to the proposed project. 39 Public hearing points raised Public hearing was conducted as per EIA and commitment of the project Notification on dated 12.03.2020, at Lime stone proponent on the same along Mining Project Area of Assam Mineral Development with time bound action plan Corporation Ltd. (AMDCL) Near Village – New to implement the same should Umrangsho, P.O.: Umrangsho, Dist – Dima Hasao, be provided and also Assam. Details given in Chapter – VII, pg. no. 154. incorporated in the final EIA/EMP Report of the project. 40 Details of litigation pending 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. 41 The cost of the project (capital The cost of the project is 260 Lac. cost and recurring cost) as well Capital cost for EMP – 28.0 Lac. as the cost towards Recurring cost for EMP – 7.25 Lac. implementation of EMP should For more details the budgetary provision for clearly be spelt out. environmental management for EMP is given in Chapter X, para. 10.5, table 10.3 on page no.194 of EIA-EMP Report. 42. A Disaster management Plan Details are given in Chapter VII on Page No 159. shall be prepared and included in the EIA/EMP Report. 43. Benefits of the Project if the Details given in Chapter – VIII on pg. no. 166. Project is implemented should be spelt out. The benefits of the Project shall clearly indicate environmental, social, economic, employment potential, etc.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 21 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

44 Details of action plan with CSR detail is given in Chapter - IX on pg. no. 188 financial and physical break up (2.5% of the toatal cost of the project) to be earmarked towards the Enterprise Social Commitment (ESC) based on local needs. B ADDITIONAL TOR 45 Impact of mining activity on There will be no outside discharge from mining area. adjacent land with particular No toxic elements present in the mineral which may reference to run off, soil erosion contaminate the soil. The scanty sub-soil is present and loss of top soil due to in cracks and fissures. Efforts shall be made to change in topography. recover the sub-soil from the cracks and fissures, it shall be scrapped in separate slice and shall be kept preserved as stack and utilizes for plantation works. 46 Details of Transportation of Details of Transportation of mined out materials mined out materials as per the study as per Indian Road Congress guide line is Indian Road Congress for both given in chapter no.IV, para 4.4.5. the ways(loaded as well as unloaded trucks) load and its impact on Environment. 47 Cumulative impact of all In the study area total 12 limestone blocks for existing mining on the present mining allotted, out of 12, only 3 mining block land use in the study area. executed for mining lease only. At present one mining lease is in working with EC(Vinay Cement- 35 hect.) only. To determine the impact due to other mining activities Air monitoring has been done in study area during the conduction of baseline study & results of which that, all the parameters are within the prescribed limit. 48 Details of the permission of the Not Applicable State Govt. as per law for diversion of land use change, if applicable, need to be submitted.

POINTS TO BE CLARIFIED OF ADDITIONAL TOR AS SEPRATE CHAPTER ( AS PER THE 19TH MEETING OF THE EXPERT APPRAISAL COMMITTEE FOR ENVIRONMENTAL APPRAISAL OF M/S ASSAM MINERAL DEVELOPMENT CORPORATION LTD. ASSAM, LEASE AREA 200.00 HECTARE HELD THROUGH VEDIO CONFREANCE HELD ON DT. 23RD JULY 2020.) S. SUGGESTED TOR BY EAC COMPLIANCE No. 1 The State Government/SPCB to take action against the project proponent under the The AMDC has not obtained CTE & CTO till date. It will be obtained after EC grant from provisions of section 19 of the MoEF, New Delhi. Environment (Protection) Act, 1986, and further no consent to operate or occupancy certificate to be issued till the project is granted EC.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 22 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

2 Assessment of ecological One season (non-monsoon) in winter season damage with respect to air, (December, 2013 to February, 2014 and Dec. water, land and other 2017 to Feb. 2018) primary baseline data on ambient air quality (PM10 SO2, & NOx), water environmental attributes. The quality, noise level, soil and flora & fauna has collection and analysis of data been collected. Site specific meteorological data shall be done by an also collected for more details please refer environmental laboratory duly Chapter III, on page no. 63 to 126 of EIA-EMP notified under the Report. AAQ station in the study area is given in Environment(Protection) Act, para. 3.4, fig. 3.4 on page no. 69. 1986, or an environmental laboratory accredited by NABL, or a laboratory of a Council of Scientific and Industrial Research (CSIR) institution working in the field of environment. 3 Preparation of EMP comprising Separate chapter given for EMP comprising remediation plan and natural remediation plan & natural & community and community resource resource augmentation plan. Refer Chapter No.XI. augmentation plan corresponding to the ecological damage assessed and economic benefits derived due to violation. 4 The remediation plan and the Separate chapter given for EMP comprising natural and community remediation plan & natural & community resource augmentation plan to resource augmentation plan. Refer Chapter No.XI. be prepared as an independent chapter in the EIA report by the accredited consultants. 5 The project proponent shall be Agreed. required to submit a bank guarantee equivalent to the amount of remediation plan & natural & community resource augmentation plan with the SPCB prior to the grant of EC. The quantum shall be recommended by the EAC and finalized by the regulatory authority. The bank guarantee shall be released after successful implementation of the EMP, followed by recommendations of the EAC and approval of the regulatory authority. 6 Budget of remediation plan and Separate chapter given for EMP comprising natural and community remediation plan & natural & community resource augmentation plan. Refer Chapter

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 23 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

resource augmentation plan No.XI. corresponding to the ecological damage shall be completed within three years and to be prepared accordingly. 7 The Project Proponent shall Enclosed. give an undertaking by way of affidavit to comply with all the statutory requirements and judgment of Hon’ble Supreme Court dated the 2nd August 2017 in Writ Petition (Civil) No. 114 of 2014 in the matter of Common Cause versus Union of India and Ors. before grant of ToR/ EC. The undertaking, inter-alia, include commitment of the PP not to repeat any such violation in future.

===== ****** =====

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 24 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

ENVIRONMENTAL IMPACT ASSESSMENT & ENVIRONMENTAL MANAGEMENT PLAN

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 25 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – I

INTRODUCTION

Mining Environment and development have become complimentary to each other. As a result of developmental activities visible ill-effects of the environmental degradation are clear and give signals of the concern. Therefore, a sustainable development of the area involving extraction of mineral wealth vis-à-vis protection of environment is the ultimate solution for betterment of mankind.

1.1 PURPOSE OF REPORT

As per new EIA Notification Dated 14th Sept. 2006 & further amendments thereon. Its is necessary to obtain Environmental Clearance for any new project/industry or enhancement/expansion of project/industry, Renewal of Mining lease from MoEF, Govt. of India, New Delhi.

Environmental clearance is a statutory requirement for the new and old establishment of any mining project of which EIA has to be prepared and submitted to respective agencies of state and centre level in line with EIA Notification.

The study involves, impacts on the environment, measuring effects and proposed control measures & management to secure, healthy environment in report with public consultation and comments and then final EC grant to project to informing public about decision later on.

The AMDC was granted mining lease over an area of 33 hectares, near village New Umrangshu, Taluka Umrangshu, District – North Cachar, Assam for mineral limestone on 21.09.1985 vide letter no PEM/22/84/34 for a period of 20 years. The Mining Lease was executed on 30.09.1988 for 20 years.(refer Annexure No.VI & VII)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 26 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The company was granted another lease over an area of 167 hectares in the adjacent area in New Umrangshu area vide letter no. PEM/22/84/228 dated 17.06.1992. The Mining Lease was executed on 24.08.1992 for 20 years.(Refer Annexure no. VIII & IX)

The AMDC, applied for renewal of mining lease, on 22.07.2008 in Form J for both the leases along with request for amalgamation of both the leases. Govt. of Assam approved the amalgamation of both the leases vide their letter no. PEM.22/84/Pt.I/11 dated 05.05.2010(refer Annexure No.X). But renewal of lease was pending.

Therefore, AMDC Ltd. had submitted application (Form-I and Pre- Feasibility Report) for prior Environmental Clearance (EC) under renewal of mine Category for proposed production 4,44,500 TPA to MOEF, New Delhi, vide letter no. AMDC/P/277/2012-13/937 dated 26.10.2012 and Ministry received the application on 09.11.2012. Presentation of ToRs was conducted on 13-15/03.2013 at MoEF, New Delhi. MoEF had released the ToRs, vide order no. J-11015/443/2012-IA.II (M), dated 06.12.2013 for preparation of an Environment Impact Assessment (EIA)/EMP Report in respect of the project(Annexure No. I).

The Approval of mining plan along with progressive mine closure plan in respect of Limestone Mine of M/s Assam Mineral Development corporation Ltd. Over an area of 200 Ha N/v-Umarngshu in Dima Hasao (N. C. Hills) district of Assam State, submitted under rules 16(1) of MCR 2016 & 23 (B) of MCDR 1988, and got approved vide letter No- IBM/GHY/AS/DH/LST/MP-78 on dated 01/12/2016(refer Annexure XI). The Grant of Mining lease as per Gazette Notification, Ministry Of Mine Dated 4th Jan.2017, vide letter no. PEM.22/84/Pt-I/41 Dt.10th Jan.2017.(Annexure No.XII)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 27 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

STAGES OF ENVIRONMENTAL CLEARANCE : Particular Description

th Submission of Application to MoEF, 26 Dec. 2012 New Delhi

th First Technical Presentation before 13-15 March. 2013 EAC, New Delhi (For ToR approval) Issuance of ToR Letter by MoEF, New No. 11015/443/2012-IA.II(M) Dated: - Delhi . 06.12.2013.(Annexure no.I) Baseline study period Dec.2013 to Feb.2014(Winter Season) Draft EIA & EMP submit to SPCB, July 2016. Assam Public hearing The SPCB, Assam requested the District Administration, Dima Hasao for giving a suitable date for conducting the Public Hearing Vide their Letter No.WB/SLC/T-644/14- 15/10-A/2502 Dt. 04/01/2016. But during TOR period(06/12/2013 to 05/12/2016) PH date was not informed by DM, Dima Hasao to SPCB, Assam meanwhile TOR has been expired. Fresh TOR applied Proposal No. IA/AS/MIN/662692/2017 in Jan.2017. Technical Presentation before EAC, 20-21 March.2017 New Delhi(for TOR approval) Issuance of ToR Letter by MoEF, New No. 11015/19/2017-IA.II(M) Dated: - Delhi . 12.04.2017.(Annexure –IA) Baseline study period Dec.2017 to Feb.2018(Winter Season) Revised Draft EIA & EMP report to June 2018 SPCB, Assam Public hearing 1. 30th Oct.2019-Postponed 2. 08th Jan.2020-Postponed 3. 12th Feb.2020 -Postponed 4. 12th Mar.2020- Done Date of Final EIA Submission 30th June 2020

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 28 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The EC case was considered in 19th EAC meeting held during 22-24 july 2020. During presentation committee noted that the mining is in operation since 1994 without prior environmental clearance, therefore the mining since 1994 is constitute as a violation of EIA Notification, 1994 & 2006. Therefore Chairman, EAC agreed to consider the instant proposal for appraisal under S.O.804€, dated 14.03.2017 and the committee, recommended to prescribe the following additional ToRs in respect of violation under the provisions of S.O.804(E), dated 14.03.2017 for preparation of additional chapter to the EIA/EMP already prepared based on the ToR granted on 12th April 2017. The committee also exempted the requirement of fresh EIA/EMP and Public consultation, since the EIA/EMP and Public consultation was carried recently for the proposed production capacity and ML area and as per the order of Hon'ble Madras High Court, repeat PH is not required. Therefore, the PP may submit the revised EIA/EMP incorporating the compliance to the given additional ToRs as a separate chapter.(Annexure No. IC).

1.2 PROJECT PROPONENT

The Assam Mineral Corporation Ltd. (AMDC) is public limited company wholly owned by Govt. of Assam. The company was incorporated on 19.05.1983 under Companies Act 1956; the company is having its registered office at Guwahati, Assam, Refer Annexure No. II: Copy of Certificate of Incorporation of the Company having the following aspects: 1. M/s Assam Mineral Development Corporation Limited is planning to excavate limestone ore. 2. The unit is coming up in New Umrangshu area of Dist. - Dima Hasao (North Cachar Hills) of Assam state. 3. The mining process to be adopted by M/s Assam Mineral Development Corporation Ltd will simply be mechanized open cast mining with the use of Excavator for loading of blasted rock. 4. The mineral Limestone which will be excavated at the mine holds good market in cement industry in India.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 29 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

About the Company M/s AMDC is a Public Limited and wholly owned by Govt. of Assam. The company is controlled by Board of Directors.

Assam Mineral Development Corporation Limited is a Public Limited Company incorporated on 19 May 1983. It is classified as State Government Company and is registered at Registrar of Companies, Shillong. Its authorized share capital is Rs. 80,000,000 and its paid up capital is Rs. 48,860,000.

Assam Mineral Development Corporation Limited's Annual General Meeting (AGM) was last held on 27 September 2013 and as per records from Ministry of Corporate Affairs (MCA), its balance sheet was last filed on 31 March 2013.

Shri Udai Aditya ACS, Managing Director and nominated owner of the AMDC Ltd. Refer Annexure No. III: Copy of Board Resolution in favor of Nominated owner. TABLE 1.1: LIST OF BOARD OF DIRECTORS S. No. Board of Directors 1 Shri Klegdoon Engti, M L A, Chairman, AMDC Ltd. 2 Dr. P K Choudhuri, Director, AMDC Ltd. Shri K C Samaria, IAS, Commissioner & Secretary, Finance 3 Department Smt. Tamiza Rahman, ACS, Dy. Secretary, Mines & 4 Minerals Department Shri Tarun Ch. Saharia, Adviser (Production), Public 5 Enterprises Department 6 Shri L. C. Bezbaruah, Director, Geology & Mining, Assam Shri Jayram Engleng, CEM, Karbi Anglong Autonomous 7 Council, Diphu 8 Shri Udai Aditya ACS, Managing Director, AMDC Ltd. Refer Annexure No. IV: Copy of Board of Directors. Contact Person:- Sh. Udai Aditya ACS. (Managing Director), M/s. Assam Mineral Development Corporation Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 30 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Khanij Bhawan, Behind Sahjahan Market, Near Ganesh Mandir, R.P. Road, Dispur, Guwahati – 781001, Assam Ph. 91 - 361 - 2384078 (off.) E-mail:- [email protected]

Refer Annexure No. V: Copy of Photo ID and address proof of the Nominated owner.

1.3 BRIEF PROJECT DESCRIPTION The AMDC was granted mining lease over an area of 33 hectares, near village New Umrangshu, Taluka Umrangshu, District – North Cachar, Assam for mineral limestone on 21.09.1985 vide letter no PEM/22/84/34 for a period of 20 years. Refer Annexure No. VI: Copy of Lease Grant order of 33 ha. area.

The Mining Lease was executed on 30.09.1988 for 20 years. Refer Annexure No. VII: Copy of Lease Deed of 33 hect. area.

The company was granted another lease over an area of 167 hectares in the adjacent area in New Umrangshu area vide letter no. PEM/22/84/228 dated 17.06.1992. Refer Annexure No. VIII: Copy of Lease Grant order of 167 ha. area.

The Mining Lease was executed on 24.08.1992 for 20 years. Refer Annexure No. IX: Copy of Lease Deed of 167 hect. area.

AMDC, applied for renewal of mining lease, on 22.07.2008 in Form J for both the leases along with request for amalgamation of both the leases. Govt. of Assam approved the amalgamation of both the leases vide their letter no. PEM.22/84/Pt.I/11 dated 05.05.2010. Refer Annexure No. X: Copy of Approval Letter for Amalgamation of leases. Approval of mining plan along with progressive mine closure plan in respect of Limestone deposit of M/s Assam Mineral Development corporation Ltd. Over an area of 200 Ha N/v-Umarngshu in Dima Hasao (N. C. Hills) district of Assam State, submitted under rules 16(1) of MCR

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 31 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

2016 & 23 (B) of MCDR 1988, and got approved vide letter No- IBM/GHY/AS/DH/LST/MP-78 on dated 01/12/2016. The Grant of Mining lease as per new mineral policy, vide letter no. PEM.22/84/Pt-I/41 Dt.10th Jan.2017.Refer Annexure No-XI & XII.

1.4 PRODUCTION DETAILS

The mining method will be mechanized open cast method of mining. The targeted productions of Limestone mineral will about 4,44,500 TPA. Production details from 1994-95 onwards:

TABLE 1.2: PRODUCTION DETAILS

Year M.T. Year M.T. 1994-95 Nil 2003-04 -- 1995-96 99056.470 2004-05 -- 1996-97 56271.040 2005-06 700.000 1997-98 45744.300 2006-07 2720.100 1998-99 25817.370 2007-08 23813.190 1999-00 47149.98 2008-09 19783.230 2000-01 39233.570 2009-10 44882.190 2001-02 29584.250 2010-11 39120.220 2002-03 -- 2011-12 16874.72*

*Production Stopped since Jan.2012 till now, Authenticated production figures are enclosed as Annexure – XIIA. TABLE 1.3: PROJECT DETAILS S. No. Particulars Details 1 Name of project New Umrangshu Limestone Mine 2 Location 3 Near village New Umrangshu 4 Taluka Umrangshu 5 District Dima Hasao (N.C Hills) 6 State Assam Nearest highway NH-37(36Km in East direction) 7 SH–07(1.7 km in West direction) Nearest railway Nearest Railway station is Lanka – 62 8 station & airport km. National park, Wild No National park, Wild life sanctuary life sanctuary, reserved exist within core as well buffer zone. 9 /protective Forest etc. Krungming RF – 2.0 km in west direction.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 32 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Nearest water bodies Following Six seasonal river exist within buffer zone : Kopili River – 7.0 km in NW, Langlai River – 8.0 km in SE, Langyen River – 3.5 km E, 10 Mongla River – 8.1 km in NE, Langklam Nadi-7.5 Km in South Bangphiri Nadi-8.0 Km in SSE Umrang Dam – 6.7 km in SW. Amrang Nallah passing through the mining lease area. Nearest town Umrangshu is about 7 km from the 11 lease area. Archaeological None within 10 km radius of mining 12 Important site within lease area. 10 km Radius 13 Seismic Zone Zone-V[as per IS 1893(Part I):2002] 14 Project Cost details Total Cost – 260 lac Environment Capital Cost -28 lac 15 protection Cost Recurring Cost- 7.25 lac/annum 16 Water Requirements 10 KLD Manpower 36 Nos 17 requirements

As per EIA Notification, 2006, AMDC wants Environmental Clearance from MoEF, New Delhi, for proposed production capacity of 4, 44,500 TPA of Limestone Mineral.

1.5 LOCATION AND COMMUNICATION 1.5.1 Location M/s Assam Mineral Development Corporation Limited proposes to set up Limestone Mine near village New Umrangshu, District Dima Hasao (NC Hills), Assam. The lease area forms a part of Survey of India topo-sheet no. 83C/NE & 83C/14 lying the co-ordinates Latitudes 25°31’17.27” :: 25°32’40.56” N & Longitudes 92°47’” :: 92°47’26.39” E. The deposit can be approached by an all weathered road from Guwahati via Nangaon, Doboka and Lanka, covering 254 km. except for last 40 km. which passes through hilly terrain, the road is on flat country. The deposit is 140 km. by road from Shillong via Jowai. Umrongshu is connected with Halflong, the district H.Q. of N. C. hills, by an all-weather road of 102 km. by the SH-

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 33 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

20. The nearest railway station is Lanka 62 km. on meter gauge section of the N.F. railway. The nearest civilian airport Guwahati is at a distance of 254 km through NH-37 from Umrangshu village.

1.5.2 Communication

Road link The Lease area is located at a distance of about 1.7 km from SH-7.

Rail link The nearest railway station at Lanka 62 km. of the N.F. railway.

Air link The nearest civilian airport Shillong Airport(Umroi Airport-82 Km) & Guwahati(Borjhar Airport-264 Km).

1.5.3 Basic Amenities Power At present there is no power connection required for mine site, However Mine office & Colony & Umrangshu village and nearby area is electrified.

Amenities Nearest facilities like Post office, School, Panchayat office, Primary Health Centre etc. are available at village Umrangshu. Mobile networks of BSNL, AIRTELL & VODAPHONE company available at mine & near by areas.

1.6 OBJECTIVES OF ENVIRONMENTAL MANAGEMENT PLAN The main objectives of this EMP are listed below :  To establish the present environmental scenario.  To anticipate the impacts of proposed future mining operations on the environment.

 To prepare a detailed action plan for implementation of mitigative measures.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 34 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 To suggest preventive and mitigative measures to minimize adverse impact and to maximize beneficial impacts.

 To prepare a compensatory afforestation scheme.  To suggest a monitoring programmed to evaluate the effectiveness of mitigative measures.

 To suggest the formation of a core group responsible for implementation of environmental control and protective measures and monitoring of such implementation.

 To suggest a feedback mechanism enabling to make mid-course corrections

 To prepare a capital cost estimate and annual recurring cost for Environmental Management Plan.

1.7 MARKET POTENTIAL Limestone is an important industrial mineral having wide variety of usage depending on its physical and chemical properties. The most important and common use of limestone is in the manufacture of cement. Limestone, either directly or on calcination of lime, also finds extensive use in metallurgical, chemical, sugar, textile and other industries.

1.8 METHODOLOGY FOR EIA M/s Udaipur Min – Tech Pvt. Ltd. was assigned the job of conduction of EIA of New Umrangshu Limestone Area, near village Umrangshu of M/s Assam Mineral Corporation Ltd.

The study was conducted within 10 Km radius from the mine as centre. The base line data collection involves the data’s of air quality, water quality status, land use, socio-economic structure of the study area, existing flora, fauna, prevailing noise levels, along with the physiographical status and meteorological conditions of the area. The current report is based on the mining technique, air emissions, waste water generation and discharge and solid waste management. It also highlights the storage and safety measures to be adopted for handling of explosive.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 35 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Effective plans to mitigate the adverse impacts and suggestive pollution control measures along with environmental management plan have been summarized.

1.9 SCOPE OF THE STUDY The terms of reference on the basis of which the EIA has been prepared are given below:

1.9.1 Data generation The data has been generated by M/s Udaipur Min-Tech Pvt. Ltd & M/s Eco Laboratories & Consultants Pvt. Ltd. Mohali, Punjab in accordance with the requirement of statutory agencies. The monitoring and testing has been done as per the guidelines of MoEF and the IS standards. Monitoring has been conducted for the following parameters. TABLE 1.4: DATA GENERATION S. No. of Total Description No locations No. of samples 1.0 AIR Ambient air monitoring (24 hourly samples), twice a week 6 144 for 3 months for one season. Parameters: PM10,SO2,NOx, 1.1 Meteorological parameters will be measured at hourly duration simultaneously at one air monitoring station for 3 months Parameters: 1 90 days a. Wind speed, direction b. Relative humidity c. Temperature d. Cloudiness e. Rainfall 2.0 WATER Water/effluents sample to be 2 Ground 2 Ground collected from each of the Water Water various locations (surface and & & ground water) in core and 1 Surface 1 Surface buffer zone (10 km radius). Water Water Parameters: Water/effluents: tested for

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 36 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

physical and chemical and biological parameters as well as according to applicable standards. 3.0 SOIL 4 4 samples 4.0 NOISE Hourly readings taken for 24 6 6 sets hours (Leq) 5.0 TRAFFIC DENSITY 1 1 set

1.9.2 Data Collection The EIA study is being done for the Mine Lease (core zone) and area within 10 km radius (buffer zone), both of which comprise the ‘study area’. The following data, through field survey and other sources has been collected by M/s Udaipur Min-Tech Pvt. Ltd, for preparing the EIA/EMP for the proposed mining lease area with related facilities. I. Details of wild fauna and flora within a distance of 10 km from the project site and information about forests, if any.

II. Eco-sensitive places, sanctuaries, biosphere reserves within 10 km radius.

III. Major industries within 10 km radius. IV. Religious places / historical monuments and tourist places within 10 km radius.

V. Land use pattern within core zone and buffer zone (10 km radius around the core zone) based on census and satellite image and cropping pattern.

VI. Demography and Socio-economic based on last available Census data for entire study area.

VII. Relevant meteorological data, for previous decades from Indian Meteorological Department (IMD).

VIII. Study of present environmental protection and mitigation measures in nearby operating similar projects, if any.

IX. Geo-hydrological aspects based on available data from various secondary sources.

X. Identification of water bodies, hills, roads etc. within 10 km radius.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 37 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

1.9.3 Preparation of EMP The EMP will include the following details: a. Study of the reports like Geological report, made available by the client where as PFR and Mining Plan was prepared by M/s Udaipur Min- Tech Pvt. Ltd. b. Present Environmental Scenario. The base line data generated and collected as per para 1.9.1 and 1.9.2 will be used to establish the present environmental scenario.

c. Identification, prediction and evaluation of Anticipated Environmental Impact due to the proposed Mine and related facilities.

The environmental impacts would be anticipated in core and buffer zone on:

- Topography and drainage - Climate - Water quality(Surface/Ground) - Hydro-geological Regime - Air quality - Noise Levels - Flora and Fauna - Traffic density - Land-Use - Socio-Economic Conditions - Habitat - Health, culture, human environment including public health, occupational health and safety.

- Sensitive Places/Historical Monuments. The impacts would be anticipated based on experience of similar projects. d. Proposed Environmental Safeguards and Monitoring Mechanism. Relevant guidelines as per Environment Impact Assessment (EIA) Notification issued in January 1994 and subsequently on 14th September 2006 under the Environment (Protection) Act, 1986 will be kept in mind while spelling out mitigation measures.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 38 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The following aspects would be covered i. Reclamation of areas disturbed during mining but not required for any activity after exhaustion of reserves.

ii.Measures to control the surface and ground water pollution due to various effluents to be discharged, if any.

iii. Measures to control air pollution due to proposed activities/operation. iv. Green belt development plan and reclamation plan of mine. v. Measures to contain noise pollution & mitigate adverse impact on workers and habitat in core and buffer zone. vi. Pronounce the improvement in socio-economic conditions & benefits the people will get on implementation of the project. vii. Measures to control health hazard of workers and surrounding population. viii. Total and specific cost of control measures. ix. Environmental monitoring, implementation organization and feedback mechanism to effect mid-course corrections. x. Identification of flora species which can be planted in and around the project.

1.10 TERMS OF REFERENCE The terms of reference have been issued by Ministry of Environment and Forest (MoEF), New Delhi vide order no. J-11015/443/2012-IA.II (M), dated 06.12.2013 and Fresh TOR after expiry of Previous ToR’s, vide letter no. J-11015/19/2017-IA.II(M) Dated 12/04/2017 and again Additional ToR’s vide letter no. J-11015/19/2017-IA.II(M) Dated 15/09/2020 with additional chapter for preparation of an Environment Impact Assessment (EIA)/EMP Report in respect of the project.

======*******======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 39 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER - II PROJECT DESCRIPTION

2.1 BRIEF DESCRIPTION & NATURE OF THE PROJECT

Mining of limestone is proposed in the mine, the lease area is 200 hect. Mining will be carried out by mechanized open cast method. Proposed production is 4,44,500 tons per annum of limestone. M/s. Assam Mineral Development Corporation Limited proposes to renew the lease area for limestone mine at Umrangshu area of Dima Hasao (North Cachar Hills) District Assam.

2.2 NEED OF THE PROJECT

Limestone is an important mineral which is used in the manufacture of cement, as flux in iron and steel production, and as raw materials for chemical industries. There are now several cement factories which have come up in Assam due to the availability of high quality limestone in the region.

2.3 LOCATION OF THE PROJECT

TABLE 2.1: LOCATION OF THE PROJECT

Particulars Details Name of the Mine New Umrangshu Limestone Area Village New Umrangshu District Dima Hasao State Assam Lease Area 200 Hect Latitude (N) 25°31’17.27” :: 25°32’40.56” N Longitude (E) 92°47’54.36” :: 92°47’26.39” E. Toposheet No 83C/NE & 83C/14

2.4 TOPOGRAPHY, DRAINAGE PATTERN 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 40 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. direction. Streams like Largen, cut across the main deposit forming ravines. The area comprises small flat – topped hillocks whose elevations vary from 580 m to around 820 m above msl. The highest point at Khandong which is approximately 12 km. west of the deposit is at 837.29 above M.S.L.

The topography of the lease area is mainly undulating land marked with shallow nallah and hilly type. The higher elevation point is 445 mRL and lower elevation point is 315 mRL.

The Amrang Nallah cuts across the lease area and flows SW to NE. Very little water remains in the nallah during eight months period of the year, however the nallah remains very active during monsoon.

2.5 DEMAND-SUPPLY GAP The demand for cement mainly depends on the level of development and the rate of growth of the economy. There are no close substitutes for cement and hence the demand for cement is price inelastic.

With a goal of speed up the sustaining growth in the cement industry the government has taken a range of steps in the Union budget 2011-12. The infrastructure sector has received a momentum in the form of improved funds and tax related incentives offered to magnetize investors for tapping the infrastructure opportunities across the country. Introduction of tax free bonds, formation of infrastructure debt funds and formulating a comprehensive policy for developing public private partnership projects (PPPs) are some of the steps that will provide required stimulus for growth of the cement industry in India.

2.6 DOMESTIC /EXPORT MARKET

The demand for Limestone for cement making has been increasing every day. The mine project aims to cater the raw material requirement of the nearby areas cement plant. All Limestone will be used for the captive purpose.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 41 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

2.7 GENERAL GEOLOGY AND LOCAL GEOLOGY:-

2.7.1 General Geology:-

The limestone deposits near New Umrangshu are part of the Carbonate belt extending from the Kopili – Kharkar confluence in the south-west to Panimur in the North-east. Along its 40 km of extension, good outcrops appear at Tumbung and at 4 km, 11th km and 13th km on the Garampani – Lanka road and also near New Umrangshu village. The width of limestone belt varies from 1 km to 2.4 km.

The limestone belongs to the Sylhet limestone Formation of the Jaintia Group of Eocene age. It is overlain by thick Shale-sandstone alternation and is underlain by Sandstone bed, which occurs at the top of Pre- Cambrian rocks. The general stratigraphic sequence of the area is given below:

TABLE 2.2: REGIONAL STRATIGRAPHIC SEQUENCE

Group Formation Lithological units Kopili Shale & Alternation of splintery shale and fine to Sandstone medium grained brownish sandstones, with occasional bands of calcareous shale. Sylhet Thick limestone, fossiliferous, hard, well Limestone bedded with occasional partings and bands

Formation of shale.

Basal sandstone White, massive, hard sandstone with

impersistent coal seam

Jaintia (Eocene) ------Un-Conformity------Jurassic Volcanic Rock Highly weathered trap ------Un-Conformity------Pre- Basement Granite and various gneissic rocks Cambrian crystalline

The traps and Pre-Cambrians has very few exposures. Highly weathered traps exposed along the Lumding nallah and the pre-Cambrians are

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 42 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. exposed along the Khandong ridge and at the dam sites of the Kopili Hydel Project, west of the limestone deposit.

Basal sandstones are well exposed near Kopili Kharkar confluence and on the beds of nallah cutting across the limestone country. Sylhet limestone occupies a large tract along the Kopili valley and is exposed intermittently all along its 40 km of strike length from Elli falls to Panimur.

Kopili shale and sandstones normally cap the limestone. The main exposure seen in the Umrangshu valley, which is a faulted block entirely, formed of Kopili shale and sandstone. Other good outcrops are seen at many places along Umrangshu – Lanka road.

Structure:

A thick pile of Eocene sediments consisting of shale, sandstone and limestone occur in sub-horizontal disposition. These beds rest uncomfortably over the Pre-Cambrian basement crystalline.

The general strike of the sedimentary beds is NE-SW with a dip of 2° to 6° towards SE. The limestone ridge is bounded by a major fault along its southern base. However , no major faults have been detected affecting the limestone deposit. A few minor dislocations of localized nature have been identified within the deposit. Sink holes and solution cavities are present but they are normally restricted towards the base of the limestone bed. Limestone are well jointed.

2.7.2 Local Geology:

The limestone deposit lies along the eastern side of the Umrangshu – Lanka road at a distance of about 5 km. from Umrangshu Township. It is exposed over an area of 11 sq.km. The present prospect forms the western flank of the AMDC block of the deposit. The limestone is exposed along the bed of the deep ravine curved out by the Amrang nallah. The Amrang Nula flowing on NNE-SSE course within the prospect has moderate to steep gradient.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 43 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The block consists of two distinct limestone beds intervened by a thin but consistent shale band of approximately 6 – 8 m thick. The top and bottom bands are about 30 – 80 m thickness. The Kopili shale and sandstone immediately overlies limestone sequence occupying the high ground along the ridges. A thin mantle of top soil normally covered the Kopili formation. The bottom band limestone is underlined by Quartzite sandstone.

TABLE 2.3: LOCAL STRATIGRAPHIC SEQUENCE

Group Formation Lithological units Thickness Kopili Shale & Shale & sandstone 0-8 m

Sandstone

Sylhet Limestone Top Band limestone 28 – 29 m

Formation Bottom Band limestone 50-52 m Jaintia ( Eocene) ( Basal sandstone Sandstone with carbonaceous Not Known shale

Description of the rocks units within the ML area: Basal Sandstone: The Basal sandstone formation lying unconformable over the pre-Cambrian, is mainly made up of whitish to pale brown sandstone, medium to fine grained, slightly quartzite with occasional presence of carbonaceous shale’s and thin coal seams. It makes its presence along Amrang nallah.

Bottom Band limestone: Immediately above the Basal sandstone lies the bottom band limestone. The contact is a gradual one. This band was encountered in all the boreholes. It has an average thickness of about 45 m based on physical, chemical and lithological characters; this band can be classified in to three recognizable sub horizons as stated below: (a) Top dirty gray to gray limestone with shale intercalation (b) Middle gray to high gray massive and compact limestone. (c ) Lower gray limestone with sandy limestone band

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 44 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The lower unit tends to become arenaceous towards bottom. In fact, the contact with Basal sandstone formation is more or less gradational. Thickness of sub – horizons varies from 6 to 8 m.

Thickness of middle unit varies from 20 to 28 m. Limestone of this horizon contains comparatively higher CaO with lesser Fe2O3, Al2O3 and SiO2. The topmost horizon of limestone unit is gray in color. It shows comparatively lower CaO content and higher Fe2O3 and Al2O3 compared to underlying unit. The thickness of this unit varies from 20 to 25 m.

Intermediate shale: The top band and bottom band limestone are separated by a thin but persistent shale band, thickness of which varies from 1.75 m to 8 m. The shale is dark gray in color with occasional thin shally limestone band. In dry condition the shale breaks into thin fragments along bedding plane.

Top Band Limestone; the top band limestone shows an average thickness of 30 m. It is characterized by highly ferruginous and argillaceous carbonate with low CaO content. On the basis of physical character and chemical composition, this unit can be demarcated in to sub units. The lower 20 to 22 m gray to dirty gray in color, highly fossiliferous, comparatively less hard and less compact with frequent presence of shally matter. The top most 8 to 10 m is reddish in color, highly ferruginous limestone. It is hard and compact with evenly distributed mega fossils.

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 with loose nodules of ferruginous sandstone. Thin bands of calcareous shale and impure limestone are also seen at places. This formation is encountered in two boreholes. The kopili formation generally occupies the ridge top. The sandstone is medium to fine grained well sorted, whitish to brown in color. It is soft and sometime friable. The shale is dark gray to brownish in color

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 45 Prepared by M/s Udaipur Min-Tech Pvt. Ltd. and splintery in nature. The limestone band shows the following chemical composition in totality: TABLE 2.4: CHEMICAL COMPOSITION The range and weighted average composition of the limestone are given below: Constituents Range % Wt. average CaO 31.5 53.50 48.02 MgO 0.03 6.05 1.31 Fe2O3 0.50 10.45 2.90 Al2O3 0.03 8.91 3.01 SiO2 0.92 17.50 5.38 SM 0.90 AM 1.02 LSF 2.15

2.8 ESTIMATION OF RESERVES & MINEABLE RESERVES The entire lease area of 200 Hect area has been considered for reserve estimation. The estimation of Reserves* out of Measured Mineral Resources is given below:

Geological Resources have been estimated on the basis of results obtained in twenty six bore holes within the lease area and mine workings.

The area is having 26 bore holes drilled of depth ranging from 26 m ( BH 19/ & BH 19/2to 108.50 m (BH 20/2) with average depth at 64.5 m. Spacing of the holes is not at regular interval.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 46 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 2.5: MEASURED MINERAL RESOURCES Summary of resources available in the applied area as below:

Sr. RESOURCE TYPE UNFC Resources in Total no (Intrinsically Economic) Code Million Tonnes Bottom Top Band Band 1 Measured resources (331) Nil Nil Nil 2 Indicated resources (332) 76.396 18.932 95.328 3 Inferred resources (333) 125.973 75.593 201.566

Mineable reserve:

Estimation of Reserves* out of Measured Mineral Resources

Sr. RESOURCE TYPE UNFC Resources in no (Intrinsically Economic) Code Million Tonnes Bottom Top Band Band 1 Indicated Mineral resources (332) 76.396 18.932

Methodology:-

Reserves of the limestone under Indicated Mineral Resources category is taken into consideration for the calculation of the mineable reserve. Mineable reserve have been calculated graphically. Reserves blocked under 7.5m barrier zone and UPL and along the Amrang Nallah have been calculated by surface area method.

Detailed brake up of resources in UNFC system as given as below. TABLE 2.6: RESERVE CALCULATION (In million tonnes) Minerals UNFC Blocked in Statutory Barriers UNFC Code 332 UPL 7.5 On Either Total Code 122 Boundary side of Mineable Barrier Amrang Reserves Nallah Bottom Band 76.396 4.261 1.389 4.615 10.267 66.129 Limestone Top Band 18.932 0.328 0.378 Nil 0.707 18.225 limestone Total 95.328 4.588 1.758 4.615 10.974 84.354

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 47 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Bottom Band Limestone RESERVES REMAINNG RESOURCES (in million tonnes) (in million tonnes) Economic (Mineable) Potentially Economic( Non-mineable) Intrinsically (Mineable) Quantity Non-mineable Total Constraints wise Break up Economic Reserves (in-situ Quantity of quantities (in-situ) Probable 66.129 Pre-Feasibility 10.267 4.261 Ultimate pit Remaining (122) Mineral limit Indicated Resources 1.389 Lease Resources (222) barrier/statutory (332) Non forest land pillars in U/G workings -- Non-diverted Forest land -- Permanent Infrastructure like Road, power lines, habitation -- Low grade part -- Non beneficiable part 4.615 Others ( On either side of Amrang Nallah)

Top Band Limestone RESERVES REMAINNG RESOURCES (in million tonnes) (in million tonnes) Economic (Mineable) Potentially Economic( Non-mineable) Intrinsically (Mineable) Quantity Non- Total Constraints wise Break up of Economic Reserves (in-situ mineable Quantity quantities (in-situ) Probable 18.225 Pre- 0.707 0.328 Ultimate pit limit Remaining (122) Feasibility Indicated 0.378 Lease Mineral barrier/statutory Resources Resources pillars in U/G (332) (222) workings Non forest -- Non-diverted land Forest land -- Permanent Infrastructure like Road, power lines, habitation -- Low grade part -- Non beneficiable part Others ( On either side of Amrang Nallah)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 48 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Summary of Resources under UNFC (Million Tonnes)

Total resources =Reserves+ Limestone Detailed breakup constraint wise remaining resources

Proved (111)

Probable (121) Nil rves Rese (122) 84.354 Feasibility (211) Ultimate pit limit Mineral Lease barrier/ safety barrier resources Non-diverted Forest land Permanent Infrastructure like Road, power line, habitation Low grade part Non beneficiable part Others (On either side of Amrang Nallah)

Pre-Feasibility (221) Ultimate pit limit Mineral Lease barrier/ safety barrier resources Non-diverted Forest land Permanent Infrastructure like Road, power line, habitation Löw grade part Non beneficiable part Others (to specify) (222) 4.588 Ultimate pit limit 1.758 Lease barrier/safety barrier Non-diverted Forest land Permanent Infrastructure like Road, power line, habitation Low grade part Non beneficiable part 4.615 Others (to specify)( Amrang Nalllah) Measured (331) Specify /outline Mineral Resources

Remaining Mineral Resources Indicated (332) Mineral Resources Inferred (333) 201.566 Mineral Resources Reconnaissance (334) Mineral Resources SUB RESERVES (a) TOTAL Remaining resources(b) ALL Total Resources (a+b) 296.895

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 49 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 2.7: PRESENTATION OF MINERAL LIMESTONE RESOURCES (MT) AS PER UNFC CATEGORY CODE Quantity Total (A+B) 296.895 Resources Reserves (A) Proved (111) Probable (121) (122) 84.354 Remaining Feasibility Mineral resources (211) Resources Pre-Feasibility Mineral resources (221) (B) (222) 10.974 Remaining Measured Mineral (331) Resources Remaining Indicated Mineral (332) Resources Inferred Mineral Resources (333) 201.566 Reconnaissance Mineral Resources (334)

Mineable Reserves & Life of Mine:

The mine planning has been devised for a peak annual ROM production of 4,44,500 tonnes of ROM limestone. TABLE 2.8: MINEABLE RESERVE Mineable Reserves 84.35 million tonnes Proposed to be mined in MP Period 2.02 million tonnes Future rate of production 0.45 million tonnes Remaining Reserves at the end of Plan 82.33 million tonnes Period Mine Life after Plan Period 82.33/0.45 = 183 years Total mine life 183+5 = 188 year 188 years

2.9 PROPOSED METHOD OF MINING

The area is located in hilly terrain and involves development of access road and removal of overburden. Mine is in operation and ancillary facilities are already established.

It is proposed to produce 330,932 tonnes of ROM per year in the first year to 4,44,574 tonnes per year in fifth year. The mineral produced here will be sold to nearby industries.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 50 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

It is proposed to work the deposit by mechanized open cast method of mining with the use of Excavator for loading of blasted rock. Following broad design parameters have been considered.

 Bench height of 6.0 m will be developed.

 Minimum bench width will be 18-25 m.

 Individual bench slope will be 800 from vertical.

 100-115 mm dia blast holes using wagon drill.

 Excavator of bucket capacity 0.93 Cum. will be used.

 For ore and waste 15 tippers are proposed to be used.

 Haul roads will be developed at minimum gradient of 1:16.

 ANFO with cap sensitive explosive will be used.

 Secondary blasting will be carried out as and when required.

 Water sprinkler will be used for dust suppression in the mine.

Provisions of MMR 1961 will be strictly be adhered.

2.10 EXTENT OF MECHANIZATION It is proposed to work the deposit by mechanized open cast method of mining with the use of Excavator for loading of blasted rock. The mineral produced here will be sold to nearby industries. It is proposed to produce 330,932 tonnes ROM limestone’s in the first year and gradually increasing to 444,574 in the fifth year.

Requirement of Machinery:- TABLE 2.9: OPERATING PARAMETERS No. of working Days 300 No. of Shifts per day 2 Limestone Production & O.B per year (Max) 277402 cu.m Total Rock handling in Cu.m. In-situ per day 925 Total ROM + Waste 2404 tpd ROM per shift 1202 t

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 51 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The area is located in hilly terrain and involves development of access road and removal of overburden. The mine is in operation and all the facilities including an explosive magazine are available in the area.

Drill Machines: - The blast hole will be drilled by compressed air operated Jack hammer drill. Two drill machines will be required to meet the scheduled rate of production on two shift basis, one for OB and another for mineral.

Excavator: - Two excavators of 0.93cu.m. bucket capacity and 6 tippers of 15 t capacity will be required to meet the production target. Excavator will be used for loading of blasted rocks.

Air Compressor: One compressor will be required.

Loading equipment: Usually manual loading shall be adopted with occasional deployment of machinery i.e. JCB Model 4DX. Loading of mineral and overburden will be with the use of excavator having bucket capacity of 0.93 cu.m.

Haulage & Transport Equipment: The haulage & transport operations will be effected by 15 tone tippers of transport contractors. TABLE 2.10: EQUIPMENT REQUIRED S. Total Machinery Units Capacity No. HP 1. L & T- Komatsu PC 200-6 Excavator 2 128 0.93 m3 2. Rock Drill Wagon, Atlas Copco ICM 260 2 465 3. Truck, Tata Engineering LPK2516 6 2700 14 m3 4. Komatsu Dozer – D 65 E-8 01 165 5 Water Tanker, 9 KL capacity 01 260 9 KL 6. Road Roller 01 82.5 7. Compressor CM-341 01 XAH210

2.10.1 BLASTING: The Holes will be drilled parallel to free face and at an inclination of 800 of the bench and staggered in the subsequent rows.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 52 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 2.11: BROAD BLASTING PARAMETERS Mineral / OB ( Max) per day 2,404 t Height of bench 6.0 m Depth of hole including sub grade drilling 7.0 m Burden 3.5 m Spacing 4.5 m Volume blasted per hole (6 x 3.5 x 4.5 = 94.5) 94.5 cu.m. Tonnes blasted per hole (94.5 x 2.6) 246 t Powder Factor t / kg of explosive 6 Explosive per hole 41 kg Explosive per day (2404/6 = 400 kg) 400 kg Booster Charge 10% 40 kg / day ANFO @ 90 % 360 kg/ day

2.10.2 Types of Explosive to be used:

For the booster charge, any cap-sensitive explosive and for column charge, any non-cap-sensitive explosive, mainly ANFO would be used. The ratio of booster charge to column charge would be 10:90.

2.10.3 Powder Factor

Powder factor is 6.0 tonnes / kg.

2.10.4 Secondary Blasting

Even a good and planned primary blast would need some secondary blasting. In similar mine about 10% of tonnage requires secondary blasting. It is proposed to carry out secondary drilling and blasting using compressed air operated Jack hammer drill and high explosives. About 40 kg of explosives for this will be required per day.

2.10.5 Storage of Explosives:

Company has a licensed magazine of 10 t capacity.

Precautionary Measures:

As the mining area is in close proximity to human settlements, adequate precautionary measures will be taken as given below:

 Adequate siren system will be in operation.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 53 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 Legible warning sign in the language understood by the local people.

 Enough security guards, especially posted on roads etc.

 Before blasting the upper surface of the bench shall be cleaned off, of any stones lying on top, as it is a major source of flying stones.

 The trunk line of the detonating cord shall be covered with sand to reduce air over pressure, as it is major source of air blast noise.

 Controlled blasting shall be practiced and only during day time.

 All safety measures as prescribed under MMR 1961 and circulars issued by DGMS.

 The danger zone shall be distinctly demarcated (by means of red flags properly arranged and supported) at least 30 minutes before firing of holes is to commence.

 Ten minutes before firing, a siren installed for the purpose shall be blown three times for one minute each at interval of one minute.

 An effective record of instruction to guards given for working and clearance shall be maintained.

 No shots shall be fired when there is traffic on any road within danger zone.

2.11 THE QUANTUM OF DEVELOPMENT AND TONNAGE OF PRODUCTION

It is proposed to produce 330932 tonnes of ROM per year in the first year to 4, 44,574 tonnes per year in fifth year. The mineral produced here will be sold to nearby industries.

TABLE 2.12: PRODUCTION & WASTE GENERATION Year Total Waste Limestone (ROM) Stripping Ratio Excavation Waste: Mineral Cu.m. Cu.m. Cu.m. Tonnes Cu.m.: Cu.m. First 237,152 109,870 127,282 330,932 0.86:1 Second 215,450 70,190 145,260 377,675 0.48:1 Third 262,510 99,910 162,600 422,760 0.61:1 Fourth 277,402 106,390 171,012 444,631 0.62:1 Fifth 266,470 95,480 170,990 444,574 0.56:1 Total 1,258,984 481,840 777,144 2,020,572

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 54 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

2.12 USE OF MINERALS The limestone of this area will be utilised as given below;  High grade limestone (+48% CaO for manufacture of paper grade lime to be supplied to Hindustan Paper Corporation. This grade of limestone has been designated as Paper grade Limestone.

 Cement Grade Limestone: (+45% CaO) to be supplied to mini cement plant around the lease area. Part of the limestone will be supplied to Assam Industrial Dev. Corporation’s project at Ding in Nawgaon district.

Broad Specifications of limestone required by Hindustan Paper Corporation and for Cement plant are given below:

TABLE 2.13: CHEMICAL SPECIFICATIONS

Chemical Specifications

Hindustan Paper Corp. Cement Plant CaO 50.27 44 to 52 MgO 1.23 >3.5 SiO2 3.27 To satisfy Silica moduli Al2O3 1.79 <0.5 Fe2O3 1.29 R2O <0.6 P2O5 <0.6 Total S as SO3 <0.6

2.13 UTILITIES AND PROPOSED SITE FACILITIES

Mine is in operation and ancillary facilities are already established.

A. Site Services

Site services as per Mines Rules 1956 are available in the area. An explosive magazine and ANFO mixing shed is also in operation in the area. First Aid station, Toilets as per the provisions of Mines Rules shall be continued to be maintained. Regular medical checkup of the mine employees will be carried out as per the provisions of Mines Rules 1955.

A. Power Supply

At present there is no power connection required for plan period.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 55 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

B. Water Requirement

Water requirement for domestic/drinking purpose is fulfilled through the nearby village/dug wells. The total water requirement for the project is estimated 10 KLD. Water for mining operation (dust suppression) and for domestic & drinking purpose will be supplied with the help of dug well/tube well situated in the nearby village and water tankers.

TABLE 2.14: PEAK WATER REQUIREMENT Purpose Total Requirement (KLD) Drinking 1.5 Dust Suppression 4.5 Plantation 3.0 Total 10.0

FIGURE 2.1: WATER BALANCE DIAGRAM

Dug well/ Tube well outside the lease area

10.0 KLD

Dust supper. Drinking Plantation 4.5 KLD 1.50 KLD 3.00 KLD

No out flow Soak Pit No Outflow

C. Man Power Total manpower required for the project is approx. 36 persons. The mining project will generate direct & indirect employment. About 36 people will get direct employment and 10-20 people will also be affected indirectly and employed with allied and related industries, such as transportation, maintenance, etc. Small scale manual opencast mining has been proposed accordingly following persons are to be employed at the mine.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 56 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

S. No. Particulars Number 1. Managerial and Supervisory personel (i) Mines Manager (As per MMR,1961) 1 (ii) Mining Engineer (As per MCDR, 1988) 1 (iii) Mining Geologist(As per MCDR, 1988) 1 (iv) Mining Mate/Supervisor 2 (v) Blaster 1 Total 6 2. Skilled: (i) Excavator operator 4 (ii) Tipper operator 12 (ii) Drill m/c operator 4 (iv) Driver Dozer 1 (v) Driver Water Tanker 1 (vi) Driver Jeep 1 Total 23 3. Semi- skilled: (i) Helpers 4 (ii) Clerk-cum-store keeper 1 Total 5 4. Un-Skilled: 2 Total 36

D. Office:

The Company has common office cum store will be available outside the lease area.

E. First Aid Room :

Regular medical checkup of the mine employees will be carried out as per the provision of Mines Rules, 1956. A first aid room with proper equipment will be maintained at the mine site office. First aid-box with all necessary facilities will be maintained and provided.

F. Washrooms :

Washroom will be provided separately for male and female worker as per Mine Rules shall be continued to be maintained.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 57 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Other services :

 A store and yard is required near the office to keep tools etc.  A fully fledged dispensary with qualified doctor will be maintained near the mine office.

 A canteen will be established and maintained.  Drinking water, toilets and urinals as per the provisions of Mines Rules.

 Drinking water facility will also be provided near the working faces.  Latrines, urinals, shall be provided and maintained as per Mines Rules 1955.

======******======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 58 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – III

DESCRIPTION OF THE ENVIRONMENT

3.1 GENERAL

3.1.1 Study area

Exploitation of mineral resources from the land through mining causes environmental and ecological instability, severe land degradation besides biological physical and socio-economic imbalance. The impact of the mining activities can be quantified through Environmental Impact Assessment Studies within the impact zone. The findings of EIA studies help in preparation of the environmental management plan for mitigating the adverse impacts.

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 comprises mining lease area of 200 Hect. The buffer zone comprises a 10 km from around the core area.

This section contains a description of the existing baseline environmental status of the area surrounding New Umrangshu Limestone Mine the data collected has been used to define the environmental scenario of the area, against which the potential impacts of the project has been assessed.

3.1.2 Sources of Environmental Data

The baseline information on micro meteorology, ambient air quality, water quality, noise levels, soil quality and floristic descriptions are largely drawn from the data generated by M/s Udaipur Min-Tech Pvt. Ltd, M/s Eco Laboratories & Consultants Pvt. Ltd. Mohali, (Punjab), and (NABL Accredited Lab). Long term meteorological data recorded at the nearest IMD station, Silchar was collected. Apart from these, secondary data have been collected from Census Handbook, Revenue Records, Statistical Department, Soil Survey and Land use Organization, District Industries Centre, Forest Department, Central Ground Water Authority, etc. The generation of primary data as well as collection of secondary data and

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 59 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

information from the site and surroundings was carried out during winter season i.e. December - 2013 to February – 2014 and Dec. 2017 to Feb. 2018.

3.1.3 Aspect Studied

As per the gazette notification dated 14th September 2006 and guidelines of CPCB, the study area was demarked. The study was conducted within a radius of 10 km within mine as center. The study period defined is Winter Season.

The discipline covered by the baseline data collection programme includes the following:-

Topography, Physiography, Hydrological aspects, Atmospheric condition, Biological environment, Land use, cropping pattern & Socioeconomic aspects.

3.1.4 Presentation

Each of the aspects listed above considered ahead in a sequential manner. Data Collected during the baseline study period are given ahead and provides a sound knowledge of the existing environment.

3.2 STUDY AREA AT A GLANCE

The study area includes the villages of Umrangshu Tehsil within 10 Kms. radius from the mine as center.

TABLE 3.1: STUDY AREA AT A GLANCE S. Particulars Details No. 1.0 General Particulars 1.1 Latitude & Longitude Latitude 25°31’17.27” :: 25°32’40.56” N Longitude 92°47’54.36” :: 92°47’26.39” E 1.2 Populations 12869 1.3 Taluka Umrangshu 1.4 District H.Q. Dima Hasao 2.0 Demography 2.1 Total Population 12869 Male 6890 Female 5979

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 60 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

2.2 Literates 9488 2.3 No. of Household 2865 2.4 No. of Villages 16 3.0 Land Use Pattern Ha. 3.1 Water Bodies 1082.79 3.2 Open Scrub Land 1152.00 3.3 Fallow Land 3190.59 3.4 Habitation 566.28 3.5 Forest 25603.02 3.6 Open Degraded 10522.44 Total 42117.12 4.0 Climatology 4.1 Total rainfall in mm. 23.2 (December, 13 – February, 14) 4.2 Mean monthly maximum temp. °C 34.9 4.3 Mean monthly minimum temp. °C 8.7 4.4 Relative humidity % 42 to 100 % 4.5 Total rainfall in mm. 20.5 (December, 2017 – February - 2018) 4.6 Mean monthly maximum temp. °C 33.7 4.7 Mean monthly minimum temp. °C 7.4 4.8 Relative humidity % 44 to 100 %

3.3 TOPOGRAPHY 3.3.1 Existing Conditions The topography of the lease area is mainly undulating land marked with shallow nallah and hilly type. The higher elevation point is 445 mRL and lower elevation point is 315 mRL. The Amrang Nallah cuts across the lease area and flows SW to NE. Very little water remains in the nallah during eight months period of the year, however the nallah remains very active during monsoon. Refer Figure 3.1: Topography Map of the Study Area.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 61 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.1: TOPOGRAPHY MAP OF THE STUDY AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 62 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.4 CLIMATIC CONDITION Although the average annual rainfall of the district is 1,145 mm, there is wide range of disparity in rainfall distribution from place to place. Diyungmukh area represents a dry belt. The winter season commences from the month of October and continues up to February. The average maximum temperature is 26° C while the average minimum temperature is 14° C. The temperature is lowest in the month of January and is recorded as 6°C. The relative humidity values from 73% to 84% (1994-95). The area represents a sub-tropical climate. CGWB, North Cachar Hills District, Assam

3.5 PHYSIOGRAPHY 3.5.1 Relief 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. Streams like Largen, cut across the main deposit forming ravines. The area comprises small flat – topped hillocks whose elevations vary from 580 m to around 820 m above msl. The highest point at Khandong which is approximately 12 km. west of the deposit is at 837.29 above M.S.L.

The topography of the lease area is mainly undulating land marked with shallow nallah and hilly type. The higher elevation point is 445 mRL and lower elevation point is 315 mRL.

3.5.2 Drainage Drainage pattern of the area is dendritic. The Amrang Nalla cuts across the lease area and flows SW to NE. Very little water remains in the nallah during eight months period of the year, however the nallah remains very active during monsoon. Therefore, ground water table will not be touched due to mining operations. There will be no drainage of water to mine workings. Pumping shall be not done. Refer Figure 3.2: Drainage Pattern of the Study Area M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 63 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.2: DRAINAGE PATTERN OF THE STUDY AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 64 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.6 HUMAN SETTLEMENT There is no human settlement within the lease area. Total 16 villages with 2865 household within the study area with population of 12869.

3.7 HYDROLOGICAL ASPECTS Hydrology Hydro geologically, the district of North Cachar Hills is divided into two distinct groups, i.e. i) semi-consolidated and ii) unconsolidated group.

Semi-consolidated rocks occupying the major parts of the district constitutes clay stone, shale, siltstone ferruginous compact sandstones, fossil ferrous limestone etc. The southern part is more argillaceous and represents poor permeability. The rock unit is well jointed and highly fractured. Ground water manifests in the forms of perennial and seasonal springs and the discharge of the spring and seepage depends on the amount of precipitation in the area. The area represents a high run-off zone.

Unconsolidated sediments constitute Recent to Sub-Recent alluvial sediments which are very restricted in nature and confined to small linear valleys. These are gravel, pebble, and sand of various grades, silt and clay.

Central Ground Water Board has drilled as many as 10 tube wells in the semi-consolidated rocks, out of which 5 tube wells are successful and rests are abandoned. The drilling depth of the tube well ranges from 23.00 to 89.45 m BGL at Umrangshu. The yield of tube well ranges from 5.3 to 58 LPM with drawdown of 3.11 to 4.22 m. The transmissivity value ranges

2 from 7.96 to 172 m /day. The aquifer materials are sandstone, light grey to yellowish and grey limestone. CGWB, North Cachar Hills District, Assam

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 65 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.7.1 Introduction Local hydrological parameters and ground level water levels are not affected due to mining activity in the area.

Ground Water Condition The ground water level in the area of Umrangshu limestone mine varies on an average from 60 meters to 80 meters.

3.8 ATMOSPHERIC CONDITION Atmospheric conditions include meteorological condition and ambient air quality of the study area. Meteorological conditions with respect to wind velocity and direction in the study area was determined by IMD station Silchar. The required data for interpretation the ambient air quality of the study area was generated by establishing a monitoring network. Regular field observations as per the norms of MoEF and CPCB were taken from the established monitoring stations.

3.9 METEOROLOGY Introduction 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. Other factors such as terrain and local topography also take part in atmospheric dispersion. Meteorology plays a vital role in affecting the dispersion of pollutants. Since meteorological factors show wide fluctuations with time, meaningful interpretation can be drawn only from long term reliable data. Such source of data is the Indian Meteorological Department (IMD), which maintains a network of meteorological stations at several important locations. The nearest IMD stations Silchar, which is about 80 km from the mine site. Meteorological information available for this station is temperature, humidity, rainfall, wind speed and wind direction. The data recorded at Silchar IMD station for the period December, 13 to February, 14 are summarized. M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 66 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Meteorological Data’s from IMD Station Silchar The data recorded at Silchar for the study period December, 2013 to February, 2014 are temperature and relative humidity were recorded during the study period which are summarized in the below table. TABLE 3.2: 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 27.4 8.6 100 62 06 02 -- -- Jan., 14 28.4 8.7 100 48 10 02 06 06 Feb., 14 34.6 9.9 100 40 06 02 04 04 Source – IMD Station (Silchar)

Micro - Meteorological Data’s The data recorded at site for the study period December, 2013 to February, 2014 are temperature and relative humidity were recorded during the study period which are summarized in the below table. TABLE 3.2A: 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 28.0 8.7 100 64 08 02 06 02 Jan., 14 28.8 8.8 100 50 10 02 06 02 Feb., 14 34.9 9.6 100 42 06 02 04 02

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 67 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.2B: MEAN TEMPERATURE & RELATIVE HUMIDITY (DEC. 2017 to FEB. 2018) Temperature Relative Wind Speed (km/hr.) (°C) Humidity (%) Month 8.30 HRS 17.30 HRS Max. Min. Max. Min. Max. Min. Max. Min. Dec., 17 29.1 7.2 100 58 08 02 05 06 Jan., 18 26.4 6.9 100 42 11 02 05 06 Feb., 18 31.7 8.7 100 41 05 02 07 04 Source – IMD Station (Silchar)

Micro - Meteorological Data’s The data recorded at site for the study period December, 2017 to February, 2018 are temperature and relative humidity were recorded during the study period which are summarized in the below table. TABLE 3.2C: MEAN TEMPERATURE & RELATIVE HUMIDITY (DEC. 2017 to FEB. 2018) Temperature Relative Wind Speed (km/hr.) (°C) Humidity (%) Month 8.30 HRS 17.30 HRS Max. Min. Max. Min. Max. Min. Max. Min. Dec., 17 29.4 8.4 100 60 07 02 09 02 Jan., 18 30.5 7.4 100 48 11 02 05 02 Feb., 18 33.7 9.4 100 44 07 02 06 02

The mean maximum temperature ranges recorded was 33.7°C and minimum temperature was 7.4°C during the study period. The relative humidity is high during the study period, being generally over 100%. Wind speed plays a dominant role in the dispersion of air pollutants. An observation of the wind rose shows that the predominant wind directions are East to West.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 68 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Wind Rose Wind speed of a site plays a vital role in predicting the extent of air pollution. It gives a clear view about the extent to which air pollutants are carried before they touch the ground. Wind rose is diagrammatic representation of wind speed in a specified direction with its arms representing sixteen directions; each arm gives a clear frequency distribution of wind speed.

Wind roses are generated with the site meteorological information’s initially collected. These raw data are processed with certain interpolation and stability classes and joint frequency function are developed to eventually reach to the development of wind roses. Refer Figure 3.3: Wind Rose Diagram

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 69 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.3: WIND ROSE DIAGRAM

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 70 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.3A: WIND ROSE DIAGRAM (DEC. 2017 to FEB. 2018)

3.10 AMBIENT AIR ENVIRONMENT To establish the ambient air quality the studies were carried out during winter season of the Month December, 2013 to February, 2014 and Dec. 2017 to Feb. 2018.

3.10.1 Ambient Air Sampling 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 Eco Laboratories & Consultants Pvt. Ltd. for ambient air quality status within 10 km. radius of the mine has been compiled along with meteorological conditions for particulars season.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 71 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.10.2. Location of Ambient Air Sampling Stations Six sampling stations were established around the core zone within 10 km radius to study the present air quality. The locations are given in below table and the area marked in Figure. TABLE 3.3: LOCATION OF AMBIENT AIR MONITORING STATIONS Station Location with respect to Site Station Name Code. Distance (Km) Direction A1 Mine site -- -- A2 Mine site (31 hect) Adjoin mine area W Near 19 Kilo A3 Umrangshu (Chirstian 1.0 NW Basti) A4 Near AMDC Workshop 1.0 SW (Near SH-20) A5 Near New Umrangshu 2.0 W Village A6 Near Leng Cheruoi 2.5 SW

Refer Figure 3.4: Ambient air sampling location in the study area.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 72 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.4: AMBIENT AIR SAMPLING LOCATION IN THE STUDY AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 73 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.10.3. Sampling Schedule Twenty four hourly samples were collected from each station round the clock, twice a week for continuous three month in winter season.

3.10.4. Air quality parameter The following parameters were analyzed for each sample.

- Particulate Matter (PM10)

- Sulphur dioxide (SO2)

- Oxides of nitrogen (Nox)

The sampling and testing of ambient air quality parameters were carried out as per relevant parts of IS 5182. The brief details of testing procedure adopted are given in below table.

TABLE 3.4: PROCEDURE FOR DETERMINING VARIOUS AIR QUALITY PARAMETERS Parameters Testing Procedure Gravimetric method using Respirable particulate

PM10 matter Sampler “ Respirable Dust Sampler” (RDS) IS:5182(Part IV)1973 Absorption in dil. NaOH and then estimated calorimetrically with sulphanilamide and N(I- NOx Nepthyle) Ethylene diamine Dihydrochloride and Hydrogen Peroxide(IS:5182 1975, Part VI) Absorption in Sodium Tetra Chloro- Mercurate followed by Colorimetric estimation using P- SO2 Rosaniline hydrochloride and Formaldehyde(IS:5182 Part II. 1969)

The detailed results of ambient air quality are given in table below table.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 74 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.5: AMBIENT AIR QUALITY (PM10, 24-hr Concentration in ug/m3) Near 19 Near Near Kilo New AMDC Near Mine site Umrangs Umra Station ► Mine site Workshop Leng (31 hect) hu ngshu (Near SH- Cheruoi (Chirstia Villag 20) n Basti) e S. Result A1 A2 A3 A4 A5 A6 No.▼ December -2013

1. Minimum 52.22 43.73 45.77 40.17 42.33 40.64 2. Maximum 58.37 52.55 57.59 52.51 54.06 50.32 3. Average 55.30 48.14 51.68 46.34 48.20 45.48 4. 98% 57.20 51.50 56.44 51.46 52.98 49.31 January – 2014

1. Minimum 53.21 46.11 46.09 43.46 46.19 42.03 2. Maximum 60.27 56.62 58.25 57.87 59.3 50.30 3. Average 56.74 51.37 52.17 50.67 52.75 45.48 4. 98% 59.06 55.49 57.09 56.71 58.11 49.29 February – 2014

1. Minimum 55.80 47.79 49.6 46.55 46.10 42.89 2. Maximum 63.81 56.41 60.04 57.6 56.44 58.64 3. Average 59.87 52.10 54.82 51.27 51.27 47.77 4. 98% 62.53 55.28 58.84 56.45 55.31 57.47 Source: Eco Laboratories & Consultants Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 75 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.6: AMBIENT AIR QUALITY

(SOx 24-hr Concentration in ug/m3) Near 19 Near Near Kilo AMDC New Near Mine site Umrangs Worksh Station ► Mine site Umrangs Leng (31 hect) hu op hu Cheruoi (Chirstia (Near Village n Basti) SH-20) S. Result A1 A2 A3 A4 A5 A6 No.▼ December -2013

1. Minimum 4.13 3.62 4.19 3.66 4.11 3.34 2. Maximum 6.68 6.11 6.55 5.77 6.03 5.52 3. Average 5.41 4.87 5.37 4.72 5.07 4.43 4. 98% 6.55 5.99 6.42 5.65 5.91 5.41 January – 2014

1. Minimum 3.93 4.19 3.82 4.03 4.17 3.65 2. Maximum 6.77 6.65 5.89 6.08 6.24 5.63 3. Average 5.35 5.42 4.86 5.06 5.21 4.64 4. 98% 6.63 6.52 5.77 5.96 6.12 5.52 February – 2014

1. Minimum 3.78 4.63 4.55 4.29 4.31 3.74 2. Maximum 6.85 7.42 6.37 6.46 6.44 6.21 3. Average 5.32 6.03 5.46 5.38 5.38 4.98 4. 98% 6.71 7.27 6.24 6.33 6.31 6.09 Source: Eco Laboratories & Consultants Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 76 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.7: AMBIENT AIR QUALITY (NOx 24-hr Concentration in ug/m3) Near 19 Near Near Kilo New AMDC Near Mine site Umra Umra Station ► Mine site Worksho Leng (31 hect) ngshu ngshu p (Near Cheruoi (Chirs Villag SH-20) tian e Basti) S. Result A1 A2 A3 A4 A5 A6 No.▼ December -2013

1. Minimum 7.32 6.98 7.37 6.33 4.17 4.60 2. Maximum 9.51 9.65 9.75 8.61 8.48 8.18 3. Average 8.42 8.32 8.56 7.47 5.53 6.39 4. 98% 9.32 9.46 9.56 8.44 8.31 8.02 January – 2014

1. Minimum 7.51 7.07 7.29 6.65 4.13 5.34 2. Maximum 9.77 9.82 10.04 7.54 7.79 8.31 3. Average 8.64 8.45 8.67 7.10 5.26 6.83 4. 98% 9.57 9.62 9.84 7.39 7.63 8.14 February – 2014

1. Minimum 7.78 7.33 8.41 7.07 4.08 5.53 2. Maximum 9.85 9.92 10.21 9.63 8.06 8.67 3. Average 8.82 8.63 9.31 8.35 5.48 7.10 4. 98% 9.65 9.72 10.01 9.44 7.90 8.50

Source: Eco Laboratories & Consultants Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 77 Prepared by 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.

TABLE 3.8: COMPARISON OF AIR MONITORING RESULTS Near NAAQS* Near 19 Kilo Near Mine New Umran AMDC site Umra Near Leng Mine site gshu Workshop Parameter (31 ngshu Cheruoi (Chirst (Near SH- Ind. & s hect) Villag ian 20) Res. , e Basti) Rural use A1 A2 A3 A4 A5 A6

PM10 Concentration Minimum 52.22 43.73 45.77 40.17 42.33 40.64 Maximum 63.81 56.62 60.04 57.87 59.3 58.64 100 Average 58.02 50.18 52.91 49.02 50.82 49.64 98% tile 62.53 55.49 58.84 56.71 58.11 57.47

SO2 Concentration Minimum 3.78 3.62 3.82 3.66 4.11 3.34 Maximum 6.85 7.42 6.55 6.46 6.44 6.21 80 Average 5.32 5.52 5.19 5.06 5.28 4.78 98% tile 6.71 7.27 6.42 6.33 6.31 6.09 NOx Concentration Minimum 7.32 6.98 7.29 6.33 4.08 4.6 Maximum 9.85 9.92 10.21 9.63 8.48 8.67 80 Average 8.59 8.45 8.75 7.98 6.28 6.64 98% tile 9.65 9.72 10.01 9.44 8.31 8.50

* NAAQS – National Ambient Air Quality Standards. 24-hr concentration in ug/m3.

A perusal of above table shows that PM10, NOx & SO2 are well within limits prescribed for areas meant for “Residential and Rural Use.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 78 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.8A: AMBIENT AIR QUALITY (Dec. 2017 to Feb. 2018)

A1) Near Mine Site

Sample No. Date PM2.5 (ug/m3) PM10 (ug/m3) NO2 (ug/m3) SO2 (ug/m3)

1. 04/12/2017 21.25 66.85 8.35 4.12

2. 05/12/2017 29.39 75.59 7.58 5.24

3. 12/12/2017 28.88 72.18 8.45 4.17

4. 13/12/2017 24.19 79.23 7.12 4.91

5. 20/12/2017 27.39 76.06 9.49 5.12

6. 21/12/2017 31.44 68.97 9.57 5.06

7. 28/12/2017 32.14 80.81 10.30 6.84 8. 29/12/2017 29.15 76.67 10.22 5.62 9. 05/01/2018 26.67 71.00 7.31 4.18

10. 06/01/2018 23.01 73.34 7.47 4.06

11. 13/01/2018 27.99 69.71 8.20 3.30

12. 14/01/2018 29.49 69.96 7.57 5.13

13. 21/01/2018 28.87 77.02 8.39 6.32

14. 22/01/2018 30.86 80.05 8.30 6.16

15. 29/01/2018 29.01 70.40 9.79 5.70

16. 30/01/2018 32.04 81.98 9.41 4.74

17. 02/02/2018 23.47 64.13 8.09 3.88

18. 03/02/2018 29.77 74.67 9.22 4.23

19. 10/02/2018 28.56 76.70 9.12 5.15

20. 11/02/2018 27.60 77.78 8.08 6.31

21. 18/02/2018 28.29 65.76 9.00 5.44

22. 19/02/2018 28.56 72.23 9.45 4.95

23. 26/02/2018 30.57 78.83 10.21 6.28

24. 27/02/2018 26.40 68.97 10.70 6.95 Min. 21.25 64.13 7.12 3.30 Max. 32.14 81.98 10.70 6.95 Average 28.12 73.70 8.81 5.16

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 79 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

A2) 500mtr D/W dirrection (Mine site 31 hect)

Sample No. Date PM2.5 (ug/m3) PM10 (ug/m3) NO2 (ug/m3) SO2 (ug/m3)

1. 04/12/2017 20.78 65.14 4.79 3.88

2. 05/12/2017 27.26 68.24 7.25 4.20

3. 12/12/2017 29.86 72.01 6.12 3.97

4. 13/12/2017 28.66 76.82 8.25 5.92

5. 20/12/2017 30.17 70.69 9.24 6.89

6. 21/12/2017 26.85 66.07 7.85 7.30

7. 28/12/2017 28.46 74.29 9.80 6.59 8. 29/12/2017 29.18 77.20 9.73 7.01 9. 05/01/2018 21.01 73.12 5.21 4.04

10. 06/01/2018 25.83 64.95 7.31 3.41

11. 13/01/2018 27.14 62.55 7.20 4.02

12. 14/01/2018 22.79 76.26 6.46 6.97

13. 21/01/2018 29.44 79.53 9.18 7.02

14. 22/01/2018 28.55 80.03 8.38 5.57

15. 29/01/2018 29.23 77.09 8.89 6.93

16. 30/01/2018 31.46 78.06 9.19 7.08

17. 02/02/2018 22.98 68.16 6.78 4.10

18. 03/02/2018 20.71 74.18 7.08 5.10

19. 10/02/2018 28.24 70.50 7.08 5.15

20. 11/02/2018 22.81 69.80 6.50 6.86

21. 18/02/2018 27.40 77.05 8.08 4.67

22. 19/02/2018 29.55 73.81 10.11 5.85

23. 26/02/2018 26.98 79.32 9.19 6.01

24. 27/02/2018 29.21 80.83 9.77 6.26 Min. 20.71 62.55 4.79 3.41 Max. 31.46 80.83 10.11 7.30 Average 26.86 73.15 7.89 5.62

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 80 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

A3) “ New Umrangshu Village”

Sample No. Date PM2.5 (ug/m3) PM10 (ug/m3) NO2 (ug/m3) SO2 (ug/m3)

1. 04/12/2017 19.18 73.02 4.24 3.39

2. 05/12/2017 22.65 65.99 6.21 4.13

3. 12/12/2017 23.24 63.18 5.18 3.14

4. 13/12/2017 27.03 72.06 6.37 4.90

5. 20/12/2017 27.59 68.15 8.53 5.90

6. 21/12/2017 20.69 72.99 8.25 5.42

7. 28/12/2017 24.21 75.19 7.98 6.59 8. 29/12/2017 28.79 65.68 7.08 6.88

9. 05/01/2018 22.69 68.04 5.07 3.33

10. 06/01/2018 20.23 73.17 7.26 4.94

11. 13/01/2018 27.17 69.43 8.29 6.89

12. 14/01/2018 26.20 70.41 5.18 5.96

13. 21/01/2018 29.77 77.18 8.90 4.61

14. 22/01/2018 24.11 75.19 6.49 6.54

15. 29/01/2018 28.87 77.20 7.15 4.09

16. 30/01/2018 27.28 66.06 7.98 6.73

17. 02/02/2018 25.41 63.94 6.88 4.04

18. 03/02/2018 27.65 72.42 4.49 4.96

19. 10/02/2018 23.44 75.32 6.07 5.97

20. 11/02/2018 26.50 66.12 4.70 4.58

21. 18/02/2018 25.65 70.21 5.72 4.75

22. 19/02/2018 23.61 69.47 6.19 5.27

23. 26/02/2018 26.09 75.90 5.25 4.94

24. 27/02/2018 29.07 73.04 6.48 5.16 Min 19.18 63.18 4.24 3.14 Max 29.77 77.20 8.90 6.89 Average 25.30 70.81 6.50 5.13

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 81 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

A4) “ Near Leng Cheruoi”

Sample No. Date PM2.5 (ug/m3) PM10 (ug/m3) NO2 (ug/m3) SO2 (ug/m3)

1. 06/12/2017 17.92 69.14 7.00 2.99

2. 07/12/2017 21.17 55.81 5.71 3.59

3. 14/12/2017 25.29 59.34 4.47 6.04

4. 15/12/2017 29.05 60.00 5.08 3.66

5. 22/12/2017 18.32 61.18 6.57 4.99

6. 23/12/2017 26.34 63.04 4.61 5.86

7. 30/12/2017 22.80 65.04 6.40 5.94

8. 31/12/2017 27.99 66.53 5.75 5.30 9. 07/01/2018 16.70 60.00 5.56 3.08

10. 08/01/2018 19.41 71.43 6.16 4.22

11. 15/01/2018 28.31 64.52 3.99 5.57

12. 16/01/2018 17.49 57.45 4.24 5.71

13. 22/01/2018 24.41 65.15 5.49 5.01

14. 23/01/2018 27.41 67.47 5.21 4.50

15. 30/01/2018 26.10 70.59 6.09 4.85

16. 31/01/2018 27.79 69.47 5.27 5.45

17. 04/02/2018 30.52 63.41 7.00 3.07

18. 05/02/2018 15.84 58.43 4.01 4.14

19. 12/02/2018 20.58 66.67 6.19 5.03

20. 13/02/2018 22.76 59.30 4.84 6.13

21. 20/02/2018 19.01 68.63 5.31 4.43

22. 21/02/2018 21.34 61.46 5.62 5.05

23. 27/02/2018 26.45 67.86 6.00 6.02

24. 28/02/2018 28.73 64.37 6.40 5.21 Min 15.84 55.81 3.99 2.99 Max 30.52 71.43 7.00 6.13 Average 23.41 64.01 5.54 4.83

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 82 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

A5) “ Dithur Village”

Sample No. Date PM2.5 (ug/m3) PM10 (ug/m3) NO2 (ug/m3) SO2 (ug/m3)

1. 06/12/2017 22.49 56.93 5.57 3.71

2. 07/12/2017 19.36 62.96 4.40 5.61

3. 14/12/2017 16.62 58.56 5.91 4.87

4. 15/12/2017 29.99 69.97 6.25 5.02

5. 22/12/2017 28.28 62.08 5.50 4.54

6. 23/12/2017 16.91 68.12 6.21 5.37

7. 30/12/2017 26.25 67.30 5.70 4.26 8. 31/12/2017 27.45 69.46 6.24 4.84 9. 07/01/2018 25.32 57.37 6.68 2.70

10. 08/01/2018 28.72 61.38 3.78 4.37

11. 15/01/2018 18.19 67.70 4.78 5.95

12. 16/01/2018 21.24 58.75 5.45 3.53

13. 22/01/2018 28.30 65.37 5.05 5.38

14. 23/01/2018 27.32 67.06 6.12 4.68

15. 30/01/2018 22.84 65.13 5.62 5.31

16. 31/01/2018 28.40 66.19 5.92 5.89

17. 04/02/2018 24.44 60.93 4.58 4.05

18. 05/02/2018 22.56 58.80 6.79 5.01

19. 12/02/2018 15.71 64.15 5.99 3.27

20. 13/02/2018 27.04 68.16 4.59 5.21

21. 20/02/2018 26.59 59.37 5.49 3.99

22. 21/02/2018 27.24 66.52 6.21 5.02

23. 27/02/2018 25.95 68.06 5.73 4.91

24. 28/02/2018 26.33 67.70 6.36 5.10 Min 15.71 56.93 3.78 2.70 Max 29.99 69.97 6.79 5.95 Average 24.31 64.08 5.62 4.69 Source – M/s Udaipur Min Tech Pvt. Ltd.

Analysis results of both the monitoring reveals that all the parameters are well within limits prescribed National Ambient Air Quality Standards for

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 83 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

areas meant for “Residential and Rural Use. Analysis Report is enclosed as Annexure – XIII.

3.11 NOISE ENVIRONMENT Mining and allied activities are usually noise-prone activities. Excessive noise levels may cause adverse effects on human being and its associated environment including domestic animals, wild life, natural ecosystem and structure.

The noise problem is said to exist when the sound level in the air causes interference in human activities such as disturbance in sleep, work and speech communication leading to annoyance. Perception of noise by individuals varies depending on number of factors such as natural sensitivity / hearing ability, level of exposure, time of the day, socio-cultural activities etc. at the time of exposure to sound. The impact of noise at community level can have different effects varying from aesthetic impairment such as annoyance, frequent hypertension to as high as loss of hearing. The health impact of noise on individual depends on several factors, viz. physical dose (intensity of sound pressure level and duration of exposure), frequency spectrum, intermittency etc. as well as human factors like sex, age, health condition, occupational exposure etc. The background noise levels within the mine and around it were recorded using sound meter to establish the existing scenario.

3.11.1 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).

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 84 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The noise analysis within the study area was recorded using sound level meter. The analysis reveals that the noise’s well within the permissible range.

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 of this region. It is the energy means of the noise level over a specified period and is expressed in terms of decibels. Methodology for monitoring of noise levels is given in below table.

3.11.2 Location of noise monitoring stations The location of Noise level monitoring is presented in below table. TABLE 3.9: LOCATION OF NOISE MONITORING STATIONS Station Location with respect to Site Station Name Code. Distance (Km) Direction N1 Mine site -- -- N2 Mine site (31 hect) Adjoin mine area W

N3 Near 19 Kilo Umrangshu 1.0 NW (Chirstian Basti) N4 Near AMDC Workshop 1.0 SW (Near SH-07) N5 Near New Umrangshu 2.0 W Village N6 Near Leng Cheruoi 2.5 SW Refer Figure 3.5: Noise Monitoring Station in the Study Area

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 85 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.5: NOISE & TRAFFIC DENSITY MONITORING LOCATION MAP

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 86 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.11.3 Noise Level Results The noise monitoring within the study area was recorded using sound level meter. Noise readings were taken at six different locations in the study area. TABLE 3.10: NOISE LEVEL WITHIN THE STUDY AREA (Unit – dBA) S. Result Location Test Test Method No Day Night

1 Mine site 53.4 45.8 1Hour Leq IS:9989 : 1981 R -2002 Mine site (31 2 52.4 45.0 1Hour Leq IS:9989 : 1981 R -2002 hect) Near 19 Kilo Umrangshu 3 50.5 43.1 1Hour Leq IS:9989 : 1981 R -2002 (Chirstian Basti) Near AMDC 4 Workshop 52.6 43.2 1Hour Leq IS:9989 : 1981 R -2002 (Near SH-07) Near New 5 Umrangshu 50.7 44.7 1Hour Leq IS:9989 : 1981 R -2002 Village Near Leng 6 47.3 42.9 1Hour Leq IS:9989 : 1981 R -2002 Cheruoi Source: Eco Laboratories & Consultants Pvt. Ltd. TABLE 3.10A: NOISE LEVEL WITHIN THE STUDY AREA (Dec. 2017 – Feb. 2018) TEST RESULT Equivalent Noise Equivalent Noise S. Station Location Level dB(A) Level dB(A) No. Code (6.00 AM to 10.00 PM) (10.00 PM to 6.00 AM) 1. N1 Near Project Site 56.3 43.0 500m D/W from 2. N2 53.9 40.7 Project New Umrangshu 3. N3 50.7 44.2 Village Near Leng 4. N4 52.6 39.5 Cheruoi 5. N5 Dithur Village 49.0 38.2 Source – M/s Udaipur Min Tech Pvt. Ltd. Analysis Report is enclosed as Annexure – XIII.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 87 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.11: CPCB NOISE STANDERD 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.

3.11.4 Traffic density Traffic density measurements were performed at one location at near village Umrangshu (SH – 07, 19 Kilo to Umrangshu). Locations of these stations are marked on the map.

Traffic density measurement were made continuously for 24 hours by visual observation and counting of vehicles under three categories, viz., heavy motor vehicles, light motor vehicles and two/three wheelers. As traffic densities on the roads are high, two skilled persons were deployed simultaneously at each station during each shift- one person on each of the two directions for counting the traffic. At the end of each hour, fresh counting and recording was undertaken. Total numbers of vehicles per hour under the three categories were determined. The results of measurements are given in the summery in below table. TABLE 3.12: TRAFFIC DENSITY Traffic vehicle No. of vehicles per day at Umrangshu (SH – 20, 19 Kilo to Umrangshu). H.M.V. 086 L.M.V. 118 2/3 wheelers 134 Grand Total 338

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 88 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.12 SOIL ENVIRONMENT Soil is defined as a thin layer of earth's crust which serves as a natural medium for the growth of plants. It is the unconsolidated mineral matter that has been subjected to and influenced by genetic and environmental factors, such as, parent material, climate organism and physiochemical action of wind, water and sum light an acting over a long period of time. Soil differs from the parent materials in the morphological, physical, chemical and biological properties. Also soils differ among themselves in some or all the properties depending on the differences in the gothic and environmental factors. The soil samples were analyzed for physical and chemical characteristics.

The soil characteristic include both physical and chemical details, the soil survey was carried out by the M/s Udaipur Min-Tech Pvt. Ltd. Udaipur & M/s. Eco Laboratories & Consultants Pvt. Ltd., Mohali, to assess the soil characteristics of the area.

3.12.1 Methodology for Soil Monitoring Soil samples from depth (0-15 cm) were collected from these villages 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.

3.12.2 Soil Sampling Location Soil survey was carried out by Environmental Expert Team, while conducting the studies for preparing the report for the main plant of the applicant, by drawing samples from various locations in winter seasons 2013-14 and analyses the same for physical and chemical parameters.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 89 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.13: SOIL SAMPLING LOCATIONS IN THE STUDY AREA Station Location with respect to Site Station Name Code. Distance (Km) Direction

S1 Near Dithur 3.0 S S2 Near Tungkharang 5.5 E S3 Near Bora Larphing 2.0 NNW S4 Near Umrangshu 5.5 SWW

Refer Figure 3.6: Soil Sampling Location in the Study Area

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 90 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.6: SOIL SAMPLING LOCATION IN THE STUDY AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 91 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.12.3 Soil Analysis Results Soil analysis was carried out and the results following below table. TABLE 3.14: SOIL ANALYSIS RESULTS Near Near S. Near Near Bora Tungkh Umra Parameters unit Dithur Larphing No arang ngshu S1 S2 S3 S4 1 pH (1:2.5) -- 7.42 6.95 6.98 7.40 Color Blackish Light 2 -- Brown Brown brown brown Sandy Sandy Sandy Sandy 3 Texture -- loam loam loam loam Water holding 4 % 28.01 27.30 25.96 27.53 capacity 5 Potassium Kg/hect 218.0 272.8 191.9 207.0 6 Nitrogen Kg/hect 352 396.6 281.6 264.0 7 Bulk Density gm/cc 1.22 0.160 1.66 1.35 8 Organic Matter % 1.60 1.68 1.28 1.20 9 EC μmhos/cm 180 140 160 143 Source: Eco Laboratories & Consultants Pvt. Ltd. TABLE 3.14A: SOIL ANALYSIS RESULTS (Dec. 2017 – Feb. 2018) S. No. Test Parameters Units Results S2 S3 S4 S1 “New “Near Bora “Dithur “Near Project Umrangshu Larphing” Village” Site” Village” 1. pH -- 7.56 8.01 7.04 7.56 2. Conductivity µS/cm 298 298 354 287 3. Moisture 2.5 % 2.2 2.0 1.20 Content 4. Organic Matter % 0.86 1.12 0.64 0.84 5. Bulk Density g/cc 1.18 1.20 1.08 1.22 6. Available Kg/Ha. 29.42 34.68 40.78 54.04 Nitrogen 7. Available Kg/Ha. 15.62 16.84 16.89 18.42 Phosphorus 8. Available Kg/Ha. 90 110 110 90 Potassium Source – M/s Udaipur Min Tech Pvt. Ltd. Analysis Report is enclosed as Annexure – XIII.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 92 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.13 WATER ENVIRONMENT

In order to conduct EIA Studies, baseline data pertaining to water environment of the existing project was carried out evaluating the basin characteristics, drainage pattern, and hydrology.

3.13.1 Surface Water Quality

The lease Umrangshu limestone mine area falls, near village Umranghu, District – Dima Hasao of State Assam. The sample of Umrangshu dam surface water body collected and analyzed. The lease area is free of industrial pollutants.

3.13.2 Ground Water Quality Assessment

The sources of potable water are the hand pumps, tub-wells & dug well in the area. Samples were collected from the available water resources around the mine lease area. The samples were collected & tested from different sites.

The quality of ground water was studied by collecting water samples from representative open dug wells, tube wells, & hand pumps. The details of water quality sites are given in below table. The samples were collected during winter season (Dec., 2013 to Feb., 2014 and Dec. 2017 to Feb. 2018).

The ground water table is in this region between 20 and 25 mts from the ground level.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 93 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.7: SCHEMATIC REPRESENTATION OF SITE ELEVATION, ULTIMATE DEPTH & GROUND WATER TABLE

HIGHEST CONTOUR 445mRL

LOWEST CONTOUR 315 mRL

ULTIMATE DEPTH 304 mRL (11 m BGL)

WATER TABLE 295 mRL (20m BGL) Post Monsoon 290 mRL (25m BGL) Pre Monsoon) Proposed working will not intersect Ground water table.

3.13.3 Ground Water Monitoring Methodology To evaluate the physico-chemical characteristics of the water resources existing in the study area, water samples from two ground water sources were collected during the winter season and characterized for physico- chemical parameters. Water samples from two ground water source were characterized. There samples were taken as grab sample and were analysed for various parameters and compared with standards IS: 10500. The locations of water sampling stations have been shown in below table. TABLE 3.15: GROUND & SURFACE WATER SAMPLING LOCATIONS IN THE STUDY AREA(Dec.13 to Feb.14) Station Code Location Remarks GW1 Near Tungkharang Ground Water GW2 Near Bora Larphing Ground Water SW1 Near Umrangshu Dam Surface Water

Refer Figure 3.8: Ground & Surface Water Sampling Station in the study area.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 94 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.8: WATER SAMPLING LOCATION(DEC.13 TO FEB.14)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 95

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.13.4 Analysis Report of Ground Water Quality The quality of ground & surface water was studied by collecting two water samples from representative hand pump & wells. The physico-chemical characteristics of ground water samples presented in below table. TABLE 3.16: ANALYSIS RESULTS OF GROUND WATER SAMPLE Near Near Bora S. Parameter Unit Tungkharang Larphing No. GW1 GW2 1 Color -- <5 <5 2 Odour -- Agreeable Agreeable 3 Turbidity NTU 1.1 0.8 4 pH value -- 6.9 5.7 Total Hardness (as mg/l 5 84 48 CaCO3) Total Dissolved mg/l 6 240 100 solids Total suspended 7 mg/l 5.0 4.7 solid 8 Chlorides (as Cl) mg/l 20 14

9 Sulphate (So4) mg/l 7.61 6.64 10 Iron (as Fe) mg/l 0.29 0.30 11 Nitrate (as NO3) mg/l 3.61 3.99 12 Fluoride (as F) mg/l 0.2 0.3 Source: Eco Laboratories & Consultants Pvt. Ltd.

A review of the above chemical analysis that there is some variation in chemical composition of water tapped from different tube wells and hand pumps, but the ground water from all sources remains suitable for drinking purposes as all the constituents are within the limits prescribed for drinking water standards promulgated by Indian standard.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 96

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.13.5 Analysis Report of Surface Water Quality

The quality of ground & surface water was studied by collecting one water samples from representative Umrangshu dam. The physico-chemical characteristics of surface water samples presented in below table.

TABLE 3.16 A- ANALYSIS RESULTS OF SURFACE WATER SAMPLE S. Near Umrangshu Dam Parameter Unit No. SW1 1 Color -- <5 2 Odour -- Agreeable 3 Turbidity NTU 0.2 4 pH value -- 6.5 5 Total Hardness (as CaCO3) mg/l 124 6 Total Dissolved solids mg/l 164 7 Total suspended solid mg/l 10 8 Chlorides (as Cl) mg/l 8

9 Sulphate (So4) mg/l 12.45 10 Iron (as Fe) mg/l 0.27 11 Nitrate (as NO3) mg/l 2.81 12 Fluoride (as F) mg/l 0.13 13 Dissolved Oxygen mg/l 9.1 14 E. Coli. -- Absent Source: Eco Laboratories & Consultants Pvt. Ltd.

GROUND & SURFACE WATER SAMPLING LOCATIONS IN THE STUDY AREA (Dec. 2017 to Feb. 2018) Station Code Location Remarks SW1 Kopili River Surface Water SW2 Mangla Nadi Surface Water SW3 Umrang Dam Surface Water SW4 Langlai River Surface Water GW1 Near Project Site Ground Water

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 97 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIG.3.8A- GROUND & SURFACE WATER SAMPLING LOCATIONS (Dec. 2017 to Feb. 2018)

TABLE 3.17: ANALYSIS RESULTS OF SURFACE WATER SAMPLE

S. Results Desirable Test Parameters Units No. SW1 SW2 SW3 SW4 Limits (mg/l) 1. pH value -- 7.56 7.10 7.18 7.60 6.5 to 8.5 2. Total Dissolve mg/l 156.0 376.0 360.0 104.0 Max 500 Solids 3. Total Suspended mg/l 36.0 24.0 32.0 36.0 Max 500 Solids 4. Chlorides (as Cl) mg/l 51.20 24.99 9.98 19.99 Max 250 5. Sulphate (as SO4) mg/l 7.33 3.91 15.03 10.45 Max 200 6. BOD (3 Days 27O mg/l <5 <5 <5 <5 Max 30 C) 7. COD mg/l 28.0 16.0 32.0 40.0 Max 250 8. DO mg/l 4.2 4.8 5.2 6.4 Max 10 9. Oil & Grease mg/l <5 <5 <5 <5 Max 10

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 98 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.17A: ANALYSIS RESULTS OF GROUND WATER SAMPLE Limits as per BIS:10500:2012 S. Desirable Permissible Test Parameters Units Results No. Limits Limits (mg/l) (mg/l) 1. Colour Hazen < 5 Max 5 Max 15 2. Odour -- Agreeable Agreeable 3. Turbidity NTU < 1 Max 1 Max 5 4. Conductivity µS/cm 306 -- -- 5. pH value -- 7.08 6.5-8.5 No Relaxation 6. Total Dissolved solids mg/l 260.0 Max 500 Max 2000 7. Total Hardness as mg/l 130.0 Max 200 Max 600 CaCO3 8. Chlorides (as Cl) mg/l 34.98 Max 250 Max 1000 9. Calcium (as Ca) mg/l 28.0 Max 75 Max 200 10. Magnesium (as Mg) mg/l 14.40 Max 30 Max 100 11. Total Alkalinity as mg/l 60.0 Max 200 Max 600 CaCO3 12. Fluoride (as F) mg/l 0.13 Max 1.0 Max 1.5 13. Iron (as Fe) mg/l BDL Max 0.3 No Relaxation 14. Sulphate (as SO4) mg/l 51.20 Max 200 Max 400 15. Nitrate (as NO3) mg/l 28.32 Max 45 No Relaxation 16. Chlorine (Free mg/l BDL Max 0.2 Max 1.0 Residual) 17. Boron (as B) mg/l BDL Max 0.5 Max 1.0 18. Copper (as Cu) mg/l BDL Max 0.5 Max 1.5 19. Chromium (as Cr) mg/l BDL Max 0.05 No Relaxation Source – M/s Udaipur Min Tech Pvt. Ltd. Analysis Report is enclosed as Annexure – XIII. All the parameters are well within the permissible limit.

3.14 BIOLOGICAL ENVIRONMENT: 3.14.1 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 99 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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.

3.14.1 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 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 mine lease area is Council Khas 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 lease area, Only one Reserves forest(Krungming R.F. 2 Km West) falls within 10 km radius . No Ecological Sensitive Area i.e.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 100 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

National Park, Wildlife Sanctuary, Biosphere Reserves, Tiger/Elephant Reserves, Wildlife Corridor etc. falls within 10 km of the Mine lease area.

FIGURE 3.9: 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. 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 101 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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.

3.14.2 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. 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 102 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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 (8B/C2) 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 103 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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 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).

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 104 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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.

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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 105 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.10: VEGETATION OBSERVED IN THE LEASE AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 106 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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, 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 3.18: 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 107 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

S. No. Species Name of Botanical Family 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 Lauraceae cecidodaphnac 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 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

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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 108 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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 - 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).

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 109 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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.

TABLE 3.19: 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 110 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

9 Bonhaldi Curcuma aromatic Zingiberaceae 10 Kalihari Gloriosa superb Liliaceae 11 TitaPhul Phlogocanthus Acanthaceae thyrsiflorus 12 Chirata Swertia chirata Gentianaceae 13 Huin (trade Spilanthes acmella Compositae name) 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.

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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 111 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.20: LIST OF FAUNA OBSERVED IN THE STUDY AREA

S. No. Local name English name Scientific name Schedule 1 Baduli (Badur) Fruit bat Rousettas V 2 BorIndur Field mouse Mlesuhse bnooaudlutyia 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 II PART-2 13 Paharichagal The goral Nauropunctuatusemorhacdus g oral III 14 Sajaru Porcupine Hystrix indica IV 15 S(Kheiytealla/Hpahiyaul ) 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

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,

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 112 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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 3.21: 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 Hcoermomiparnocdneeli ca IV 4. Batasia House swift Alopnugsi paeffnninis IV 5. Bhutumphec Indian Eagle Owl Bubu bubu IV 6. Bonha murgi Red Jungle Fowl Gallus gallus IV 7. Bou kaka Brainfever bird Cuclus varius IV 8. Bkkuoulbu l Bulbul Pycnonotus jokosus IV 9. Gharchirica House sparrow Passer domesticus IV 10. Chat ak Small skylark Alauda gulgula IV 11. Chee l Pariah kite Milvas migrans IV 12. Dark ak Jungle crow Corvus IV 13. Dauk White breasted water hen Ammaacruorrohuyrnncihsu s IV 14. Doye l Magpie Robin Cpohposeyncihcurs ussa ularis IV 15. Dub du bi Dabchick Tachylaptrus IV 16. Gach phecha Spottet owlet Srutrfiecpolltoisp elia IV 17. Bogoli Egret heron EChgirneetntasi sg arzetta IV 18. Kani musuri Grey heron Ardea cinerea IV 19. Goru bogoli Cattle heron Bubulcus ibis IV 20. Haita l Green pigeon Treron IV 21. Patm adoi Black headed oriole Ophriooelnuisc oxpatnetrhao rnus IV 22. Harg ila Adjucent stork Leptopilos dubius IV

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 113 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

23. Hiram on Blossomheaded parakeet Psittacula IV 24. Hutu mphech Brown fish owl KCyeatunpocae pzehyalolan ensis IV 25. Jaa lgh uri Pheasant tailed Jacana Hydrophaisannus IV 26. Teltu pi Red rumped shallow Hchiirrunurdgou ds aurica IV 27. Janga lipaora Maroon backed Imperial Dukula badia IV 28. Janga lishalik Gpirgeeyo hne aded myna Sturnus IV 29. Katha thukra Rufous wood pecker Mmiaclraobpaterricnuuss IV 30. Dhob ani White wagtail Mbaotarchciylular uasl ba IV 31. Kukil /kuli Koel Eudynamys IV 32. Lakh iphecha Barn owl Tscyotloo paalbcaea IV 33. Laldh upi Redtutle dove Streptopelia IV tranquebarica 34. Latka n Indian lorikeet Loriculus vernalis IV 35. Lanjo Pintail Anus acuta IV 36. Machh ranga Common king fisher Alcedo atthis IV 37. Maup iya Fire breasted flower pecker Dicacum ignipectus IV 38. Moho nchura Hoopoe Upupa epops IV 39. Muni a Spotted munia Lonchura IV 40. Myna Hill myna Gpurancuhlual arteali giosa IV 41. Neelp akhi Fairy blue bird Irena puella IV 42. Nilka ntha Indian roller Coracias bengalensis IV 43. Pani cowri Little cormorant Phalacrocorex niger IV 44. Pan du ri Darter Anhiga rufa IV 45. Patic owri House crow Corvus spendens IV 46. Pech Kunda Black drongo Dicrurus adsimilis IV 47. Patr inga Little green bee eater Merops orientalis IV 48. Phul tooshi Yellow backed sun bird Aethopyga siparaja IV 49. Raj C haha Painted snipe Rostratula IV 50. Raj ha nh Barheaded goose Abennsegra lienndsiicsu s IV 51. Raitk anda Indian night jar Caprimulgus IV 52. Raja rani Scarlet minivet Paseiraictricoucts us IV 53. Saba jpeki Gold fronted leaf bird Cffhlalommropesuis IV Source: Survey team in consultation with concern astateurif rforestonts officials and local people

CONCLUSION OF FAUNAL STUDY In Core Zone No wild animal. Rare, Endemic & Threatened Species etc. were not recorded within 10 Km radius area of the mine site & No Schedule –I species were recorded within 10 km radius area of the mine

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 114 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

site during base line study. Authenticated List of Flora and Fauna is enclosed as Annexure – XIV.

3.15 LAND ENVIRONMENT 3.15.1 Land use of Study Area (Buffer Zone) The total and of the study area is divided into following categories:- i. Water bodies ii. Open Scrub Land iii. Fallow Land iv. Habitation v. Forest vi. Open Degraded

3.15.1.1 DATA INPUT IRS LISS3 Multispectral digital FCC (False Color 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, landmarks point etc.

Technical Details  Satellite Image IRS LISS3  Band Combination 2,3,4  DIP Software ERDAS Imagine 9.2 & Arc GIS 9

3.15.1.2 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 115 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.15.1.3 GEOREFERENCING OF TOPOMAPS SOI toposheet has been geo-referenced in geographic lat/long coordinate system using ERDAS Imagine Software.

3.15.1.4 BASE MAP LAYER CREATION Project site mine plan 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.

3.15.1.5 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 behavioral 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 116 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.15.1.6 Agricultural Yield of the Study Area Agriculture is the main occupation of the people and along with the allied occupations its accounts for 63% of the state’s work force. Rice is the staple diet of the people and cultivations of rice is the main occupation of those engaged in Agriculture. Different pulses, jute, tea and fruit cultivation are the other agricultural crops, Sugarcane, potatoes, cotton, oil seeds coconut. Jhum cultivation or Shifting cultivation, under which tribal peoples clean or burn, in part of forest land and use for cultivation in periodic period, is main problem in Assam.

Among fruit crops in state has oranges and other citrus fruit, bananas, guavas, pineapples and mangoes. There are extensive plans to expand the cultivation of these fruit products and market them to bring greater benefits to the farmers. The gross cropped area in the state is about 35 lakh hect. out of which rice cultivation is 26 lakhs. Forests is playing important role in Assam’s economy. Timber and bamboo are major products of the Assam state. Assam tea is famous and its major cash crops of state. About 15% of the world’s total output of tea comes from garden of Assam.

Table 3.22 : AREA AND PRODUCTION OF THE MAIN CROPS (North Cachar Hills District) Sr. No. Crop Area in hect. Production in Tones A. CEREALS : 1. AUTUMN RICE 5815 6661 2. WINTER RICE 7480 11899 3. SUMMER RICE 28 44 4. WHEAT 53 66 5. MAIZE 1260 823 6. OTHER CEREALS & SMALL MILLETS 53 24 B. PULSES : 1. TUR 210 168 2. GRAM 21 7 3. BLACK GRAM 900 365 4. LENTIL 69 33 C. OIL SEEDS 1. LINSEED 1 0.5 2. CASTOR 97 45 3. SESAMUM 416 211 4. RAPE & MUSTARD 2118 578

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 117 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

D. FIBRE CROPS 1. JUTE 110 997 2. MESTA 10 43 3. COTTON 778 389 E. MISCELLANEOUS CROPS 1. SUGARCANE 875 30003 2. TAPIOCA 44 220 3. POTATO 289 2092 4. SWEET POTATO 20 138 5. TOBACCO 32 25 F. PLANTATION CROPS 1. BANANA 390 4875 2. PAPAYA 4515 69628 3. ORANGE 4569 45996 4. PINEAPPLE 12129 177594 5. ARECANUT 320 244 6. COCONUT 20 136 G. SPICES 1. CHILLY 244 142 2. ONION 7 25 3. TURMERIC 246 127 Source : Agriculture Deptt., Govt. of Assam.

The study area present a hilly topography. A small area falls under the Ag. Land in study area, therefore Ag. activities is very less in villages exits in within study area. About 6300 hect. area available in Dima Hasau Dist. The following main crops observed within study area(10 Km).

Kharif Crops: - The areas appear in distinct red color and smooth texture on the image. Paddy is the Kharif crop grown in the district. Cotton and Jute are grown in limited areas.

Rabi Crops: - Paddy pulses, rape, mustered, castor etc. are the main Rabi crops grown in the district.

Cropping pattern of the area depends upon the climatological conditions and need of the local population of the area. Sometimes cropping pattern may get changed during construction and operational phase because of particular requirement of specified anthropogenic activities.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 118 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Besides the above-mentioned crops Bamboo, pineapple, ginger, jackfruit, etc. are also grown in the area. Tea is the major cash crop of the area and it is grown in N.C. Hills but on a scale.

TABLE 3.22A: LAND USE PATTERN ON SATELLITE IMAGE S.no. Class Names Area (Ha.) % (Area) i Water Bodies 1082.79 2.57 ii Open Scrub Land 1152.00 2.74 iii Fallow Land 3190.59 7.58 iv Habitation 566.28 1.34 v Forest 25603.02 60.79 vi Open Degraded 10522.44 24.98 Total 42117.12 100

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 119 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.11: LANDUSE PATTERN OF THE STUDY AREA.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 120

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.12: SETTLITE IMAGE OF THE STUDY AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 121

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.15.2 Land use of Lease area (Core Zone) The mining lease area is 200 hect. has undulating topography with shallow nallah in the area. No Agriculture field and forest land exists within the core zone. The summarized details of the type of land use covered in the lease area is indicated in below table. TABLE 3.23: LAND USE PLAN FOR PRE- OPERATIONAL, OPERATIONAL & POST -OPERATIONAL PHASES (IN HECT.) All figures in Hect.

S. At the end At the end of Description Existing No. of 5th year lease period 1 Pits 6.390 26.040 90.720 2 Waste Dump 3.190 6.200 10.000* 3 Road & Building 2.138 3.010 4.000 4 Plantation 5.180 15.180 27.800 5 Agriculture land ------6 Mineral stack ------7 Remaining Land 183.102 149.570 67.480 Total area 200.00 200.00 200.00

At the end of lease period total 65.180 ha. area will be planted which includes 5.180 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area.

3.16 SOCIO-ECONOMIC ENVIRONMENT

3.16.1 Reconnaissance

The project is related to Limestone area and project area falls in village New Umrangshu village, District Dima Hasao, State Assam.

Any mining activity can create impact on region, the impact could be positive or negative depending on the development activities adopted and carried out by the mining industry. It is very necessary to assess socio- economic impact through mining activity. Socio-economic study is very helpful to know exact condition of the study area.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 122

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3.16.2 Baseline Status

Baseline information on the socio-economic environment was collected within 10 km radius surrounding the proposed study area. The process related database thus generated includes:

 Demographic structure

 Economic structure

 Health status

 Public awareness and their concern about the project

The primary socio economic data was collected through field survey in sample villages in study area as well as the observations by the survey team. It has been subs tainted with relevant socioeconomic data from secondary sources of various official records. viz., Census records, District statistical abstract, district health office, District industry center tourism office etc.

Socio- Economic survey done with Household survey, group discussion, Government official authority and village leaders.

3.6.2.1 Demographic Structure

The details concerning the demographic structure of the study area was collected from Census record of Dima Hasao district from Assam State, 2011 census. The details about demographic structure is given in table 3.24, literacy details in table 3.25

The salient features are as follows:

 Total population of the region as per 2011 census is 12869 out of which 6890 are male and 5979 are female. In 0-6 age group total population is 1732. Population details are shown in Fig 3.13.

 Total household are 2865 with a family size of 4 person in the study area

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 123 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 Total scheduled cast population is 465(4%) and scheduled tribe population is 5676 (44%).This data indicates that 48% population belongs to SC & ST category

 Sex ratio (number of male per thousand female) in the study area overall sex ratio is 867. In 0-6 age child group sex ratio is 977, SC category 890 and in ST 965 female to per thousand male. This shows that male population is higher in the region as compared with the female population. Sex ratio is given in Fig 3.14.  Literacy rate of the population in the study area is 9488 (74%). Male literate are 5397(57%) and female literate are 4091(43%).Illiterate population is 3381(26%) Literate and illiterate population shown in Fig 3.15.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 124 Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 3.24: DEMOGRAPHIC STRUCTURE TOT_ TOT_ M_0 F_0 P_S M_S F_S M_ S. No. Village Name No_ HH TOT_P P_06 P_ST F_ST M F 6 6 C C C ST Sub District Umrangso, District Dima Hasao 1 Dithur 49 258 142 116 51 24 27 4 4 0 156 81 75 2 Lamklam 18 116 63 53 25 13 12 0 0 0 116 63 53 3 Umrangso 23 118 61 57 25 15 10 0 0 0 113 58 55 4 Lang Juri Arda 21 94 53 41 19 9 10 0 0 0 94 53 41 5 Choto Larpheng 50 256 125 131 46 23 23 0 0 0 255 125 130 6 Langlut (H) 11 64 37 27 8 5 3 0 0 0 64 37 27 7 Tungkjang 12 57 30 27 13 6 7 0 0 0 57 30 27 8 Krungring Arda 27 142 75 67 19 10 9 0 0 0 132 70 62 9 Larphing 19 123 67 56 28 18 10 0 0 0 87 48 39 10 Umrangso (TC) 2401 10376 5575 4801 1300 650 650 447 235 212 3439 1715 1724 11 Lanalut 11 64 37 27 8 5 3 0 0 0 64 37 27 12 Choto Longklam 18 116 63 53 25 13 12 0 0 0 116 63 53 13 New Umrangso 16 109 61 48 15 9 6 0 0 0 109 61 48 Umrangso (Umrangso 14 85 442 219 223 68 39 29 13 6 7 352 175 177 19 Km.) 15 Sikilangso 70 354 179 175 57 22 35 1 1 0 342 170 172 16 Mangadi Hower 34 180 103 77 25 15 10 0 0 0 180 103 77 Total 2865 12869 6890 5979 1732 876 856 465 246 219 5676 2889 2787 Source Primary Census abstract 2011, Sub District Umrangso, District Dima Hasao M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 125

TABLE 3.25 : LITERATE AND ILLITERATE POPULATION DETAILS P_ M_ F_ P_ M_ F_ S. No Village Name LIT LIT LIT ILL ILL ILL Sub District Umrangso, District Dima Hasao 1 Dithur 107 67 40 151 75 76 2 Lamklam 48 28 20 68 35 33 3 Umrangso 42 20 22 76 41 35 4 Lang Juri Arda 72 44 28 22 9 13 5 Choto Larpheng 188 91 97 68 34 34 6 Langlut (H) 14 10 4 50 27 23 7 Tungkjang 19 13 6 38 17 21 8 Krungring Arda 85 51 34 57 24 33 9 Larphing 32 19 13 91 48 43 10 Umrangso (TC) 8227 4672 3555 2149 903 1246 11 Lanalut 14 10 4 50 27 23 12 Choto Longklam 48 28 20 68 35 33 13 New Umrangso 86 51 35 23 10 13 Umrangso (Umrangso 14 217 116 101 225 103 122 19 Km.) 15 Sikilangso 202 122 80 152 57 95 16 Mangadi Hower 87 55 32 93 48 45 Total 9488 5397 4091 3381 1493 1888 Source Primary Census abstract 2011, Sub district Umrangso, District Dima Hasao.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 126

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.13: POPULATION DETAILS IN THE STUDY AREA

FIGURE 3.14: SEX RATIO IN THE STUDY AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 127

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 3.15: LITERATE & ILLITERATE POPULATION IN THE STUDY AREA

3.16.2.2 Economic Attributes Economic resource base of any region mainly depends upon its economically active group i.e. the working population involved in productive work. Work- Work may be defined as participation in any economically productive activity. Such participation may be physical or mental in nature. Work involves not actual work but also effective supervision and direction of work. It also includes unpaid work on farm or in family enterprise.

The employment pattern of worker and Main worker of the study area is described below and presented in table 3.26 & 3.27 As well as in Fig.3.16 and Fig 3.17. TABLE 3.26: EMPLOYMENT PATTERN MAIN MARG NON_ S. No Village Name WORK_P WORK_P WORK_P Sub District Umrangso, District Dima Hasao 1 Dithur 60 0 198 2 Lamklam 29 11 76 3 Umrangso 55 3 60

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 128

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

4 Lang Juri Arda 27 24 43 5 Choto Larpheng 68 2 186 6 Langlut (H) 25 1 38 7 Tungkjang 18 0 39 8 Krungring Arda 38 53 51 9 Larphing 38 14 71 10 Umrangso (TC) 3317 186 6873 11 Lanalut 25 1 38 12 Choto Longklam 29 11 76 13 New Umrangso 28 6 75 Umrangso (Umrangso 14 128 2 312 19 Km.) 15 Sikilangso 179 1 174 16 Mangadi Hower 34 56 90 Total 4098 371 8400 Source Primary Census Abstract 2011, Sub District Umrangso, District Dima Hasao.

TABLE 3.27: MAIN WORKER EMPLOYMENT PATTERN MAIN MAIN MAIN MAIN S. No Village Name _CL_P _AL_P _HH_P _OT_P Sub district Umrangso, District Dima Hasao 1 Dithur 56 1 0 3 2 Lamklam 29 0 0 0 3 Umrangso 0 0 0 55 4 Lang Juri Arda 20 4 0 3 5 Choto Larpheng 61 3 0 4 6 Langlut (H) 24 0 0 1 7 Tungkjang 18 0 0 0 8 Krungring Arda 38 0 0 0 9 Larphing 34 0 0 4 10 Umrangso (TC) 270 64 25 2958

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 129

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

11 Lanalut 24 0 0 1 12 Choto Longklam 29 0 0 0 13 New Umrangso 25 0 0 3 Umrangso (Umrangso 19 14 77 8 0 43 Km.) 15 Sikilangso 169 0 0 10 16 Mangadi Hower 33 0 0 1 Total 907 80 25 3086 Source Primary census abstract 2011, Sub district Umrangso, District Dima Hasao

FIGURE 3.16: EMPLOYMENT PATTERN IN THE STUDY AREA

FIGURE 3.17: MAIN WORKER EMPLOYMENT PATTERN IN THE STUDY AREA

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 130

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Employment pattern details  Main worker population is 4098(32%), 1521(8%) comes under marginal worker category and 371(3%) belong to non-workers category.  Main other workers are 3086 (75%). and main cultivators workers are 907(22%)  There are 80(2%) and 25(1%) workers as agriculture and house hold industry worker

3.17 SOCIO-ECONOMIC SURVEY 3.17.1 Sampling Method A judgmental and purposive sampling method was used for choosing respondents of various sections of the society i.e. Sarpanch, adult males and females, teachers, medical practitioners, businesspersons, agriculture laborers, fishermen, unemployed group etc. Judgmental and purposive sampling method includes the right cases from the total population that helps to fulfill the purpose of research needs.

Data Collection Method

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 131

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Data collection is a term used to describe a process of preparing and collecting data, for example, as part of a process improvement or similar project. The purpose of data collection is to obtain information to keep on record, to make decisions about important issues, to pass information on to others. Primarily, data are collected to provide information regarding a specific topic. Data collection usually takes place early on in an improvement project, and is often formalized through a data collection plan which often contains the following activity.

Field Survey and Observations Field research involves the collection of primary data or information that is new. This is collected through surveys and questionnaires that are made out specifically for a purpose Observations can be conducted on nearly any subject matter and the kinds of observations will do depend on survey question.

Interview Method Interview is verbal questioning. Surveys are also conducted through interviews. Interviews consist of asking questions, listening to individuals and recording their responses. Structured interview method is used to collect data regarding the awareness and opinion from the sample selected of the various socio- economic sections of the community. The questionnaire mainly highlights the parameters of primary needs.

Socio-economic survey was conducted in six villages within the study area located in all directions with reference to the project site.

The respondents were asked for their awareness/opinion about the project and their opinion about the impacts of the project, which is an important aspect of socio-economic environment, viz. job opportunities, education, health care, transportation facility and economic status.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 132

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The salient observations recorded during survey in the study area:

According to survey done in the study area, survey observation as per below:  In the study area main occupation of villagers is agricultural work, labour work and small business  Most of the houses are in semi pakka form.  Most of the villages have access to pakka road. Transportation facilities are quite enough in the study area.  Farmers are depend on mainly monsoon for agricultural activity, Paddy is main crop of the study area  Communication facility is good with mobile network and post office facility  All villages are well electrified and used for all purposes  Main language in study area is Assamese as well as Hindi is widely spoken by population  Mainly firewood is used by villagers for cooking purpose. Other sources are LPG, kerosene etc.  Sanitation facility is not in good condition, only 25% population have sanitation facility  Main source of drinking water is hand pump and well etc.

3.17.2 Awareness and Opinion Awareness is the state or ability to perceive, to feel, or to be conscious of events, objects or sensory patterns. In general, an opinion is a subjective belief, and is the result of emotion or interpretation of facts. An opinion may be supported by an argument, although people may draw opposing opinions from the same set of facts. For assessing the awareness and opinion about the project activity socio-economic survey was conducted in the sampling villages. The salient observations drawn through survey are described below:

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 133

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 The respondents from almost all the villages are aware about the project activity.  Some of the respondents have very good opinion about the project and they opined that due to proposed project activity, quality of life of the villages will improve  Respondent have suggested minimizing the environmental pollution during and after project activity  Respondents asked to give employment to local people  Villagers asked better infrastructure facility as well as medical facility

======**************======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 134

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – IV ANTICIPATED ENVIRONMENTAL IMPACT AND MITIGATION MEASURES

4.1 INTRODUCTION

Any human activity in any environment produces impact, modifying it to a status which is considered adverse of beneficial according to the damage or improvement it brings about in physical, chemical and biological status of air, water, land including biota and in socio-cultural life styles and economy of the populace it affects. Depending on the nature of activities and existing status, the impacts are assessed for their importance. On the basis of the impact analysis, the mitigating action and future monitoring requirement are focused in the Environmental Management Plan for counting or minimizing adverse impacts.

Effects of this mining project on each of the environmental parameters are detailed below in accordance with the parameter of environment likely to be affected.

- Topography and Drainage - Climate - Air environment - Noise levels - Hydrological conditions - Water Quality - Ecology - Land environment - Soil - Socio-economic environment - Cultural and Heritage environment

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 135

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Generally, the environmental impacts can be categorized as either primary or secondary. Primary impacts are those which can be attributed directly to the project. On the other hand indirect are induced and typically include the associated investments and change patterns of social and economic by the proposed actions.

4.2 TOPOGRAPHY & DRAINAGE

4.2.1 Topography

Topography of the surrounding area will remain unchanged. While that of mining lease area will change due to mining, excavation, dumping etc.

4.2.2 Drainage

Drainage pattern of the area is dendritic. The Amrang nallah cuts across the lease area and flows SW to NE. Very little water remains in the nallah during eight months period of the year, however the nallah remains very active during monsoon.

The Amrang Nallah cuts across the lease area and flows SW to NE. Very little water remains in the nallah during eight months period of the year, however the nallah remains very active during monsoon. The drainage pattern due to proposed mining will not be disturbed within core (lease area) as well as buffer zone.

4.3 IMPACT ON CLIMATE

4.3.1 Temperature

The temperature pattern is a regional behavior and is not likely to be affected by the mining activity over a small area. Some local effect may be perceived due to mining, afforestation and creation of water voids in the lease area.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 136

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

4.3.2 Rainfall

The trend of rainfall, as studied and discussed in last chapter, forms part of a regional pattern, not dependent on the relatively small area of mining activity. The mining operation , therefore, is not likely to have any adverse impact on rainfall pattern.

4.3.3 Wind Speed

The wind speed in any area is dependent upon local topography and generation of elevation and depression of pressure changes in the region. The controlling factors for the pressure changes lie much beyond the control of small area under mining operations. Thus, no adverse impact on the regional wind speed is anticipated due to the mining operations.

4.3.4 Humidity

The pattern of relative humidity depends mainly on the rainfall, wind, temperature and other weather phenomenon that regional in behavior. The mining operation is not likely to have any impact on the relative humidity in the surrounding.

4.4 IMPACT ON AIR ENVIRONMENT

As explained in the previous chapter, the ambient air quality monitoring

results show that all the parameters such as PM2.5, PM10, SO2, NOx 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 137

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

inhaled in sufficient quantity. As such there will be no noticeable impact on air quality.

Air Pollution Due to Mining :

i) Gaseous Pollution : The gaseous pollutants(SO2 & NO2 ) are anticipated by HEMM like excavator, dumpers, dozer and other transport vehicles. The ambient air quality was measured on 24 hourly bases for the gaseous pollutants.

ii) Particulate Matter : The generation of dust is anticipated from various mining activities i.e. drilling, blasting, loading, haulage and other transport activities related to mining. These will increase PM10 in the area if no mitigate measures are taken.

4.4.1 Air Pollution Modeling

The impact of the expansion on the air quality has been predicated using Fugitive Dust Model (FDM), which is a computerized air quality model specifically designed for computing concentration and deposition impacts from fugitive dust sources. The sources may be point, line or area sources. The model has not been designed to compute the impacts of buoyant point sources, thus it contains no plume rise logarithm. The model is generally based on the well-known Gaussian Plume formulation for computing concentrations, but the model has been specifically adapted to incorporate an improved gradient transfer deposition algorithm. Emissions for each source are apportioned by the user into a series of particle size classes. A gravitational setting velocity and a deposition velocity are calculated by FDM for each class. Concentration and deposition are computed at all user selectable receptor location and the result are summarized.

4.4.2 Pollutants / Model Options Considered for Computations

The model simulations deal with major Pollution Particulate Matter

(PM10) and gaseous emissions viz. SO2 & NO2.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 138

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

4.4.3 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.

4.4.4 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 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 emission (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 kg of dust emitted is for 1000 tonnes of excavation. Dust emission rate of mine lease area. 4,44,500 X 23.6 / 300 X 8 X 1000 = 4.37 kg/hr.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 139

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The above mentioned emission rate is without adoption of dust control measures. 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 (4.37 /3) i.e. 1.45 kg/hr.

Mine Dimensions The mine dimensions are as follows: Mine Lease Area = 200.00 hectare

Meteorological Data On site hourly meteorological data for summer season (March to May, 2013) in respect of wind speed, wind direction, temperature and cloud amount are 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 have 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 140

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Gaussian Plume Model

Ground Level Concentration, from a point source at any receptor under unlimited mixing is given by (USEPA ISCST3, 1987).

Qg1g2  = (2 y zu)

Where, g1 = exp(-y2/2y2) g2 = exp[-(z-H)2/2z2] + exp[-(z+H)2/2z2]

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(yLu 2 case ) or neutral conditions when z < 1.6 L

Qg1  = (2 y zu) Where, 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)2/2z2] + exp[-(z+H+2NL)2/2z2]

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).

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 141

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 = 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 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:

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 142

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Concentration (g/m3) PM10 SO2 NOx 100 80 80

Plan and frame work of computations & selection of locations The locations have been selected around the applied mining area covering an area of 10 km radius from the centre of mining. The entire area has been put on grid network and grid spacing has been taken as 500 m.

Plan of Computation The emission rate, dispersion coefficients and other input data being now available; it was planned to compute the following: -The 24 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 river bed mining project for

PM10, SO2 and NO2 are superimposed on the maximum baseline PM10,

SO2 and NO2 concentration recorded at the monitoring location during the field monitoring 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 143

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

PREDICTED AMBIENT AIR QUALITY CONCENTRATIONS IN OPERATION PHASE CUMULATIVE CONCENTRATIONS (BASELINE + INCREMENTAL) FOR PM10 S. No. Particular Project Site 1. Monitored Maximum concentrations in µg/m3 81.98* Predicted incremental Maximum 2. 0.1 concentrations in µg/m3 3. Resultant Maximum concentrations in µg/m3 82.08 4. NAAQS (dated 2009) 100

*Maximum Concentration value in the core zone in the lease area. It is clear from predicted values that concentrations in respect of PM10 are well within limits at all locations.

FIGURE 4.1: GROUND LEVEL CONCENTRATION OF AMBIENT AIR QUALITY IN OPERATION PHASE 1KM FOR PM10

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 144

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

FIGURE 4.2: GROUND LEVEL CONCENTRATION OF AMBIENT AIR QUALITY IN OPERATION PHASE 10KM FOR PM10

4.4.5 Traffic Survey : Traffic survey was conducted during base line survey and Following No. of vehicles per day at monitoring station given below in tabular form :

Traffic vehicle No. of vehicles per day at Umrangshu (SH-07,19 Kilo to Umrangshu) H.M.V. 086 L.M.V. 118 2/3 wheelers 134 Grand Total 338

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 145

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Fig : 4.3 Transportation Route Map

Existing Traffic scenario & LOS :

S. No. Existing V/C Road V C LOS Ratio 1 SH - 20 338 3,000 0.11 A

Note : V = Volume of Vehicles in PCU’s/day & C= Capacity of Highway in PCU’s/day

The existing level of Service(LOS) is “A” i.e. excellent.

V/C LOS Performance 0.0 - 0.2 A Excellent 0.2 - 0.4 B Very Good 0.4 - 0.6 C Good / Average / Fair 0.6 - 0.8 D Poor 0.8 - 1.0 E Very Poor Note : Capacity as per IRC: 64-1990.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 146

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

During Mine Operations : S. No. Particulars Details 1 Proposed Capacity of mine/annum 4,44,500 TPA 2 No. of working days 300 3 Proposed Capacity of mine/day 1482 TPD 4 Truck Capacity 40T 5 No. of dumper deployed/day 19 6 No of trips 2 7 Total truck on Road 38 Considering both loaded & empty tractor trolleys 8 76 PCUs Increase in PCU/day will be

Modified Traffic Scenario & LOS :

Modified V/C Road V C LOS Ratio SH -20 414 3,000 0.14 A

From the above analysis it can be seen that the V/C ratio is likely to change to 0.11 to 0.14 with LOS remain “A” which is excellent, as per classification. So the additional load on the carrying capacity of the concerned roads is not likely to have any adverse effect.

4.4.6 Air quality mitigation measure

As already indicated the ground level concentration of PM10, SO2 and NOX are well within limits. There is not much suspended dust in the air of the area except in summer season during the storms. Thus subsequent quality of the air is hardly affected. In addition to the above the following measures has been adopted: - 1. Water spraying on the roads for suppression of dust. 2. Transport vehicles will be continual maintained. 3. Development of green belt. 4. Water sprinklers are used for water spraying.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 147

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(a) During Drilling  Sharp drill bits are used for drilling.  The drill machines are operated with dust extractor arrangement.  Drill operators and helpers are provided with personal protective appliances.

(b) During Blasting  Blasting is done only day time, during this period movement of men is less.

 Blasting is done by competent persons and all the precautions laid down in MMR, 1961 are followed.

 The proper charges per hole also minimize dust and fly rocks.

 Water spraying before blasting.

(c) During Transport Operations  All the haul roads are kept leveled, wide and compacted.

 Regular water spraying will be continuing on haul roads in the area.

 In order to reduce dust pollution, green belt has been developed around the lease boundary and roads etc.

4.5 IMPACT ON NOISE LEVEL/VIBRATIONS

4.5.1 Impact of Noise on Working Environment : With the proposed mining operations for mine development, excavation and transportation of limestone, its imperative that noise levels would increase. However, the expected noise levels are not likely to have any adverse effect neither from the occupational health point of view or any impact on the surrounding area & villages.

4.5.1.1 Noise generated due to Drilling

The drilling operations in the limestone mine will be carried out by DTH drill. The noise level in the working environment will be maintained within standards prescribed by OSHA. Noise generated due to drilling may effect labors if during working hours(8 hrs) exposure is more than the safety dB(A).

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 148

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

4.5.1.2 Noise generated due to Blasting

Noise generated from blasting is for a short moment and instantaneous. Nosie of blast is site specific and depend on type, explosive quantity, dia. of holes, degree of compaction of explosive in the hole and rock. The noise levels decrease with distance and for very short duration and will not have any significant impact on the surrounding areas.

4.5.1.3 Vibration due to Blasting

Ground vibration, fly rock, air blast, noise, dust and fumes are the deleterious effect of blasting on environment. The explosive energy sets up a seismic wave in the ground, which can cause significant damage to structures and disturbance to human occupants if not operated in controlled manner. Controlled deep hole blasting will cause less vibrations.

The exposures to excessive noise levels can lead to:

 Prevention of sleep, insomnia and fatigue.

 Decrease in speech reception, communication, distraction and diminished concentration thus adversely affecting job performance efficiency.

 Chronic psychological disturbance including impaired hearing.

 Irreparable cardiovascular, respiratory and neuralgic damages in certain extreme cases.

The area in general represents calm surroundings. There is no heavy traffic, industry or noisy habitation in the area. With the increase in scale of mining operations, deployment of machinery, blasting operation and men and noise levels are expected to increase.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 149

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

4.6 IMPACT ON WATER QUALITY

4.6.1 Surface water quality

The opencast mining operation usually causes water pollution. The sources of pollution generally are:

 Wash off from dumps  Pumping of mine water into surface water bodies  Soil Erosion

The waste dump will be properly fenced to prevent wash off. The area comprises part of the regional drainage system of the Kopili river valley in its northern higher reaches. As the mining lease is in the southerly slopping hilly terrain, there is hardly any perennial water source in the area. However, many seasonal watercourses cutting across the hilly terrain carry the heavy surface water flow during creating deep gullies and gorges in their course.

Amrang nallah(seasonal) is passing through the lease area. Diversion of nallah is not require during mining as nallah course will be not disturbed. A suitable barrier left both side of bank and proper stone wall with slope will be made along Amrang nallah. The Amrang nallah joins Langyen nallah out side lease area, a tributary of the Kopili River, in the south- eastern side. Thus the micro drainage of the area is controlled by the Langyen nallah while macro drainage is a part of the Kopili River master basin.

The rainwater shall be coursed into the mine by developing suitable drainage system and join to Amrang nallah. The water collected in the pit, after settling of the suspensions, shall be used for afforestation & mine spraying. Further, as the water collected in the sump is not likely to have any dissolved harmful elements as

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 150

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

limestone is non toxic in nature, the same can be supplied to the surrounding for irrigation purposes.

4.6.2 GROUND WATER QUALITY

Ground water pollution can take place only if dumps and stockpiles contain harmful chemical substances that get leached by precipitation of water and percolate to the ground water table. In that case any nearby source of ground water can be rendered unfit for drinking purpose or industrial use.

Though the area is in a high rainfall region, most of the precipitation constitute "run off' with very meager scope of infiltration. Therefore ground water is not available in the hilly terrain of lease area.

The ground water is encountered at the depth of 60 m to 80 m below the ground level in the plain area and there is no indication of ground water up to the depth of 55 m during the course of drilling. Hence, there is no adverse impact of mining on the ground water quality. Besides this the sources of ground water i.e. wells etc. are very less in number and mainly the surface water is utilized for drinking and other purposes. There are few wells at a distance of more than 2 Km. from site.

There are only one prominent nallah in the area. The Amrang nallah (passing through the mining lease) and the Langyen nallah within the buffer zone. Sufficient virgin barrier zones with the mine working will be left as protection for the Amrang nallah within mining lease. So these nallah will not be contaminated from surface rain-wash from the working mine.

The over burden dumps will be properly located and protected by boundary wall with garland drain surrounding it so that rain wash material will be arrested. Only de-silted water will flows into nallah.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 151

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

This is not the case with this mine, as mineral or soil does not contain any harmful ingredients that could leach down to the water table. Thus the mine workings shall not affect the ground water quality.

4.7 IMPACT ON FLORA

4.7.1 Flora in Buffer Zone No forest within core zone. The area covered under vegetation in the buffer zone has scanty vegetation comprising of shrubs and bushes. The buffer zone at present has sparse growth of trees of common variety.

As the mining activities will be confined to core zone only, no adverse impact is foreseen on the flora of the forest area.

4.7.2 Flora in Core Zone

Excavation in the mining area and construction of roads, offices etc. does not affect the flora in the area where these operations are carried out. Plantation being carried out in the mine and surrounding areas will, over a period of time, upgrade the flora.

4.8 IMPACT ON FAUNA

The adverse impacts on fauna are mainly due to:

 Human Activity  Noise  Land Degradation  Deforestation The impact on the fauna of the buffer zone due to the mining activity will be marginal. As there are very few trees / shrubs in the area, deforestation will not be significant factor in impact on fauna.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 152

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Fauna in the core zone is minimal, as most of the area is either waste land. Even so, by restricting mining at any time to small areas, impact on fauna will be kept to the minimum. Moreover, due to small activity of the past two decades with machinery has already pushed out whatever minor fauna was available in this desolate land. However, progressive plantation activity being undertaken will over a period of time create conditions favorable for fauna.

4.9 IMPACT ON LAND ENVIRONMENT

4.9.1 Land use in buffer zone No adverse impact is anticipated on land use of buffer zone due to the mining operations, as all the related activities are confined to the core zone.

4.9.2 Land use in core zone The land use of the area will undergo considerable change as arising from:

- Extension of the excavations - Establishment of facilities in the area - Revenue agricultural land (part) will be converted to mining purposes, if any.

Land use of core zone changes anticipated during the end of lease period are indicated and given in below table.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 153

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 4.1: LAND USE PLAN FOR PRE- OPERATIONAL, OPERATIONAL & POST -OPERATIONAL PHASES (IN HECT.)

S. At the end At the end of Description Existing No. of 5th year lease period 1 Pits 6.390 26.040 90.720*** 2 Waste Dump 3.190 6.200 10.000* 3 Road & Building 2.138 3.010 4.000 4 Plantation 5.180 15.180 27.800** 5 Agriculture land ------6 Mineral stack ------7 Remaining Land 183.102 149.570 67.480 Total area 200.00 200.00 200.00

At the end of lease period total 65.180 ha. area will be planted which includes 5.180 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area.

A perusal to above table shows that 11.718 hect. area is disturbed at present, which shall progressively increase to 104.72 hect. area by the end of lease period due to the proposed mining operations. The mine position at the end of lease period stage wise shown in the conceptual plan. The progressive increase in mining area will lead not only to land degradation but also visual pollution if appropriate control measures are not adopted. The mitigating measures already undertaken and proposed are given under environmental management plan.

4.10 IMPACT ON SOIL

Top soil is present in the southern side of the lease area and is very less (i.e. 0.15mtr to 0.30mtr). Scanty sub-soil is present in cracks and fissures. Naturally, it is fertile black cotton soil/clayey soil. Efforts shall be made to recover the sub-soil from the cracks and fissures, it shall be scrapped in separate slice and shall be kept preserved as stacks under tarpaulin cover

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 154

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

and utilizes for plantation work. The quantity assessment of top soil is very difficult as the exact thickness is not possible to measure.

4.11 IMPACT ON SOCIO-ECONOMIC ENVIRONMENT 4.11.1 HUMAN SETTLEMENT The villages and their inhabitants in the buffer zone will not be disturbed from their settlements due to the mining operations.

There is no inhabitation within the lease area. Therefore neither villages nor any part of village or any hamlet will be disturbed during the entire life of the mine. As the mining operations will not disturb or relocate any village or settlement, no adverse impact is anticipated on any human settlement.

4.11.2 EMPLOYMENT The area is considered as industrially backward. The population in general do not have opportunities of earning from employment. The only employment to depend on is agriculture, which is seasonal. In the absence of any high employment potential activities, the people are economically backward. The mining operations are providing employment to 36 persons.

The various indirect employment opportunities have also been generated. Several persons of the neighboring villages have been benefited with contract works, employment through contractors, running of jeeps, trucks, tractors and buses on hire, running canteens, different kind of shops and transport related business avenues.

4.11.3 ECONOMIC STATUS The whole part of the lease area is govt. waste land and owned by AMDC for mining. Since no any private land fall in lease area, so no any

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 155

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

compensation is required to be done for the acquired land. As the mining commences it will provide a lot of job opportunities to the nearby villagers.

4.11.4 AGRICULTURE The agricultural activities are seen in the areas where there is sufficient soil cover. The buffer zone will remain undisturbed and no adverse impact is envisaged.

4.11.5 SENSITIVE TARGETS There are no places of Tourist, religious & Historical importance in core zone of 10-km radius. Therefore, no adverse impacts are anticipated.

4.12 STRUCTURED ENVIRONMENT MANAGEMENT & ACTION PLAN

The company has endeavored the mitigation measures of potential impact and aspects of operation.

TABLE 4.2: ENVIRONMENT MANAGEMENT MATRIX Environmental Aspect of Potential Mitigation Monitoring Setting & Operation impacts measures programmed baseline Fugitive Effective 1. Ore Emissions & water AAQM handling Noise sprinklers 1. Air Fugitive Effective 2.Transportation Emissions & water AAQM Noise sprinklers The Regional emissions well ------within norms Provision of 1. Water reducing 2. Water Contamination testing turbidity 1. Ore & SS excavation Provision 2. Altered Existing water of rain hydrologic quality is water regime potable harvesting

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 156

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

The better efficient water sprinkling system will be worked. Green belt planning will be made effective so that the air emissions are restricted within lease area. The noise and vibrations will be controlled by effective planning i.e. provision of breaking ground vibrations, thick green cover near habituated area. The ground water harvesting program will be carried out in nearby area and village. =====********======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 157

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – V

ANALYSIS OF ALTERNATIVES

(TECHNOLOGY AND SITE)

Umrangshu Limestone mine will produce Limestone for feeding to different industries. Analysis of alternatives based on site and technology are given below:-

5.1 SITE ALTERNATIVES

It is an existing mining lease. Mining industry is site specific. The mine has to be located where the mineral exists in sufficient quantity to be economically extracted. So, no alternatives can be chosen. The selected site has the following advantages:

1. The project site is a Govt. wasteland.

2. The area chosen for mining activities is not having habitation of any kind.

3. Availability of labour from nearby villages.

4. No endangered species around the mine site.

5.2 TECHNOLOGY ALTERNATIVES

The mineral deposit is located on surface & can be mined by mechanized open cast method of mining economically. The mining will be carried out by opencast method. At present status of mining, underground method of mining is not feasible. Taking into consideration shape and nature of deposit and the targeted production the mine is being worked by mechanized method of mining.

======**************======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 158

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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 mine will be formed. The organization will be headed by a General Manager (mine) and managed by Chief Executive Officer and supported by an Environmental Officer.

The said team will be responsible for:

1. Collecting water, air, soil & Noise Samples of work zone monitoring for air pollutants.

2. Analyzing the water, soil and air samples. 3. Implementing the control and protective measures. 4. Coordinating the environment related activities within the project as well as with outside agencies.

5. 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 159

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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.

FIGURE 6.1: ENVIRONMENTAL MANAGEMENT CELL

Environmental Management Cell

Chief Executive Officer

Environmental Officer (M.Sc. Env. Sc.)

Geologist / Mine Manager/ Asst. M.M.

Monitoring of Air /Water/Noise/Soil

6.4 ENVIRONMENTAL POLICY : The management of the company is very conscious to minimize the existing pollution load in the ML area. Apart from having an 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

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 160

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

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.

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.

M/s. AMDC 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 161

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 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:

TABLE 6.1: MONITORING SCHEDULE FOR ENVIRONMENTAL PARAMETERS

Monitoring Duration of Important Monitoring Particulars Frequencies Station Parameters pH, SS, TDS, Iron, Surface water / Once in a Hardness, Alkalinity, Ground water Grab year Chlorides, Nitrates, Sampling Sulphate & Fluorides Ambient air Twice in a quality 24 hr. PM10, SO2 and NOx year. monitoring Noise Twice in a Level in dB(A) and 8 hr. Monitoring year. dB(C) PH, Conductivity, Once in a Sulphate, Nitrate, Soil Sampling Grab year 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 162

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 6.2: COST OF ENVIRONMENTAL PROTECTION MEASURES (Investment and recurring cost Rs. Lakh) S. Capital Recurring cost Particulars No cost / annum 1. Pollution Control 5.00 1.00 2. Pollution Monitoring 5.00 1.50 3. Plantation on Barren Area 10.00 3.00 4. Occupation Health 3.00 0.75 Miscellaneous (Fencing, 5. 5.00 1.00 Garland Drains etc.) Total 28.00 7.25

Total investment on environmental improvement works existing and envisaged Rs. 28.00 lakhs and recurring expenditure during the stage of production is Rs. 7.25 lakhs per year.

======**************======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 163

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – VII

ADDITIONAL STUDIES

7.1 INTRODUCTION

The proposed project is for the mining of Limestone at near Village-New Umrangshu, & Dist- Dima Hasao(N.C.Hills) Assam & proposed production is 4,44,500 TPA by opencast method of mining. As per the EIA notification 2006, before the establishment of project i) public consultation, ii) Risk assessment & Disaster Management Plan , iii) Social impact assessment due to project have to be addressed, which are as follows :

7.2 PUBLIC CONSULTATION Public hearing was conducted as per EIA Notification on dated 12.03.2020, at Lime stone Mining Project Area of Assam Mineral Development Corporation Ltd. (AMDCL) Near Village – New Umrangsho, P.O.: Umrangsho, Dist – Dima Hasao, Assam. The public hearing was chaired by Shri Dipak Jidung, ACS, Addl. Deputy Commissioner, Dima Hasao District, Assam & Shri Arabinda Das, Assistant Engineer, Pollution Control Board, Assam, Regional Laboratory cum office, Silchar, Cacher, Assam and also attended by local peoples, during the process suggestion, objection were invited from the local people regarding the project. During the public consultation, no objection regarding the project has been received. However people are happy for the coming project as they will get employment and other facilities. Minutes of public hearing is given in below table.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 164

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

PHOTOGRAPHS OF PUBLIC HEARING

TABLE 7.1: MINUTES OF PUBLIC HEARING Response/Commitm Issues raised by the Fund S. N. ent of Project Action Plan Public Allotment Proponents Shri Jay Singh Durong All the mitigation PP will make EMP Cost – member of Autonomous measures will be sure for EMC Rs. 7.25 Council, haflong shared adopted to protect the will comply with lac/yr. his bitter experience that environment, CSR all the CSR cost – in earlies production time activities will be done mitigation 12.0 Lac/yr. of AMDCL project. The as per the proposal measure to 1. AMDCL has not given and in protect the maintained the CSR consultation with environment. scheme and protection of locals. CSR activities degradation of Employment will be will be done and Environmental issues given to local people. records will be like Air and Water maintained.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 165

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Pollution for which the Preference will nearly Nalah only one be given to local potable water source of people for long-term become employment. unusable. But he welcomes the proposed project for the greater public interest and requested the AMDCL authority to generate the employment for the local people. 2 Shri Jay Singh Enghi, Employment will be Preference will - President, Karbi given to local people. be given to local Students Association people for Dima Hasao District employment. Committee lodged complaint regarding Name of the project site location that there is no existence of New Umrangsho requested for correction as umrangso He requested to provide employment of local people. 3 Shri Santu Hojai Member All the mitigation PP will make EMP Cost – of Garampani measures will be sure for EMC Rs. 7.25 Development Forum adopted to protect the will comply with lac/yr. Umrangso left, welcome environment, CSR all the CSR cost – the AMDCL for the activities will be done mitigation 12.0 Lac/yr. proposed project and as per the proposal measure to requested to take given and in protect the necessary pollution consultation with environment. control measure before locals. CSR activities and during operation He will be done and also requested to the records will be AMDCL authority to take maintained. part of development for the effected people and the road connectivity potable water, healthy and medical facility community socio

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 166

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

economic development etc. 4 Shri Promit Sengyung PP assures them Management of - General Secretary that, it will not AMDCL will Dimasa student union happen in future. make assure (DSU) Umrangso branch Social development that all the committee HQ haflong will be done as per precautionary Dima Hasao District the proposal; all the measures are directly alleged AMDCL mitigative measures being adopted. already failed to comply will be adopted to CSR activities the local issues related control the pollution. will be done and with environment and records will be reimbursement of effected maintained. people thereby highly Compliance dissatisfied on their report will be previous mining activities submitted to including CSR scheme. concern He will oppose proposed authority on project if the AMDCL regular basis. authority do not fulfil the public grievances before commission of the project. 5 Shri Prabin Hojai Senior Shri Sonu Roy Vice Preference will - citizen Umrangso Dima Chairman AMDCL be given to local Hasao. He readout the assured that the people for memorandum of Dimasa AMDCL authority employment. student’s union (DSU) said - will try to fulfil Umrangso branch the demand placed by committee Dima Hasao the local people and District placed the NGO’s regarding area demand on behalf of development under student’s union and CSR scheme and submitted it to the requested to co- president of public operate for smooth Hearing and copy to the functioning the MD of AMDCL. He also proposed project. He thanks the AMDCL also thanks to the authority. He explained people for attending the bitter experience of in the public Hearing. the company come to Dima Hasao district but requested to generate local employment in the proposed project based on

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 167

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

skill and qualification to take part of development of the deprived people. 6 Shri Mansing Enghi, Gao Company ensured to Once the project - Bhura, Umrangso work for the social gets started demanded the AMDCL welfare. various authority to provide Employment will be development preference of effected given to local people. activities will be people including taken up in the employment and others surrounding aspect. area especially in the affected area. Preference will be given to local people for employment. 7. Shri Dhan Singh Teron AMDCL assured that PP will make EMP Cost – General secretory Karbi they will try to fulfil sure for EMP Rs. 7.25 Students Association, the demand placed by will comply with lac/yr. Dima Hasao District the local people and all the CSR cost – Committee alleged that NGO’s regarding area mitigation 12.0 Lac/yr. no Development facility development under measure to has been provided by any CSR scheme. protect the company come to this environment. area as promised during CSR activities public hearing. will be done and records will be maintained. Preference will be given to local people for employment. 8. Shri Jay Sing teron, Gao AMDCL assured that PP will make EMP Cost – Blura of langehirong medical checkup will sure for EMC Rs. 7.25 alleged that no medical be organized as per will comply with lac/yr. health checkup camp has the proposal and all all the CSR cost – been organized by the the mitigative mitigation 12.0 Lac/yr. existing company and no measures will be measure to care has been taken by adopted to control protect the the authority of pollution the pollution. environment. control Board, Assam Employment will be CSR activities regarding environments given to local people will be done and degradation of Umrangso & occupational records will be area. He also advised to training will also be maintained.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 168

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

the AMDC authority to given. Preference will provide training of the be given to local local people for social people for development for employment. employment of local people in the proposed project. Copy of minutes of Public Hearing is enclosed as Annexure No. – XV.

7.3 RISK ASSESSMENT AND DISASTER MANAGEMENT PLAN

All types of industries face certain types of hazards which can disrupt normal activities abruptly and to disaster like fires, inundation, failure of machinery, explosion, to name a few. Similarly, limestone mines also have impending dangers or risk which need be addressed for which a disaster management plan has been formulated with an aim of taking precautionary steps to avert disasters and also to take such action after the disaster which limits the damage to the minimum.

Nevertheless, the following natural/industrial problems may be encountered during the mining operation.

1. Inundation- filling of the mine pit due to excessive rains.

2. Slope failures at the mine faces or stacks.

3. Accident due to storage of explosive and blasting.

4. Accident due to fire.

As per proposal made under the mining plan, during proposed working period the area will be developed by means of mechanized opencast mining method with adoption of drilling and blasting. Exploitation and transportation of minerals are to be carried out by Mechanical means with the use of excavator for loading of O/B & waste. Bench height is maintained at 6.0 m. Water table will not be touched during processed working. No high risk accidents like landslides, subsidence flood etc. have been apprehended.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 169

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

But possibility of accidental disaster is also not ruled out. Therefore, all the statutory precautions should be taken for quick evacuation as per the Mines Act 1952, the Mines Rules 1955, MMR-1961 and MCDR-1988.

Mining and allied activities are associated with several potential hazards to both the employees and the public at large. A worker in a mine should be able to work under condition, which are adequately safe and healthy. At the same time the environmental condition should be such as not to impair his working efficiency. This is possible only when there is adequate safety in mines. Hence, safety is one of the most essential aspects of any working mine. safety of the mine and the employees will be taken care according to the mining rules & regulations, which are well defined with laid down procedure for safety, which when scrupulously followed safety is ensured not only to manpower but also to working environment.

7.3.1 Possible Risks Due To Inundation & Its Control There is no perennial river on the surface of the Lease area only seasonal Nallah like Amrang nallah are flowing in the lease area and it’s depend only on good monsoon rains. The possibility of the mine getting inundated due to water from the river is remote. In case, at any time in the future such an event occurs, the water will be allowed to stand and naturally percolate into the ground. In case, there is any need to empty out any particular pit for working, then pumps will be used to pump out the water.

It is anticipated that ground water seepage in the mine is not possible because at the end of lease period of the mine, the maximum depth of the mine floor will be 304 mRL, which is above the ground water table(mRL 290-mRL290) in the workable area. In another case during possibility accumulation of water, preventive & management measures shall be

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 170

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

planned as per Reg.127 of MMR 1961.The water can be pumped out using diesel operated pumps from the pits that requires to be worked. The pumped out water will be passed through a settlement tank for settling of suspended matter before releasing into the nearby natural drain.

7.3.2 Disasters Due To Failure of Slopes

The rocks are blasted to win the mineral causing cracks and opening in natural binding. Such loose rocks may fall at any time causing damage to human life and machinery. The only remedy to the affect to such situation is to dress the blasted part. All necessary precaution will be taken as per REG.115 (1) of MMR 1961 to avoid any disaster. Sliding of waste dump is an equally severe risk like quarry slope failure.

7.3.3 Possible Dangers Due To Storage of Explosives in the Magazine

The explosive will be slurry explosive which will be used as booster and the main explosive will be ANFO mixture (Ammonium Nitrate and Fuel Oil Mixture). Ammonium Nitrate is one of the principal ingredient used in manufacturing of explosives though normally not classified as an explosive, being relatively insensitive.

Required quantity of explosive will be obtained from the dealer who supplies at mine side through his approved explosive van. A magazine in the lease area is already constructed for storage of explosive. All precautions as per MMR 1961 will be observed.

7.3.4 Disaster Due To Fire No surface fire is anticipated in the mining operation. In case of forest, fire may result due to dry leaves and wood in vegetated part and result in a disaster. In the area under reference, there is no such situation and there is no danger of forests fire. No oil, grease, canvas or other inflammable material will be stored in mine except in a fire-proof receptacle.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 171

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

7.4 CARE AND MAINTENANCE DURING TEMPORARY DISCONTINUANCE

Mining lease is a continuous working mine. At the time of temporary discontinuance of mine, notice (as per Rule 24 of MCDR, 1988 & Reg.6 of MMR, 1961) will be sent to IBM and mines Safety authorities. Notice will be accompanied as per Rule 24 of MCDR, 1988, vide, Form no.D-1.All precautionary steps will be taken into account in respect of care and maintenance.

In case of any temporary discontinuance due to court order or due to statutory requirement or any other unforeseen circumstance following measures for care and maintenance and monitoring of status shall be taken.

Notice of temporary discontinuance of work in mine shall be given to the Controller General, Controller of Mine and the Regional Controller, IBM and DGMS Officials under Rule 24 of MCDR 1988 and Reg. 6 of MMR 1961 respectively.

 All the mining machinery shall be shifted to a safe place.  Entrance to the mines or part of the mines to be discontinued shall be fenced off as per DGMS Circular and security Guards shall be posted for the safety and, to restrict any unauthorized entry to the area.

 Competent persons shall inspect the area regularly.

 Air, water and other environmental monitoring shall be carried out.  Care and upkeep of plantation done shall be carried out on regular basis.

 Measures of care, maintenance and monitoring of status of unplanned, discontinued mining operations expected to re-open in future.

 All rules and regulations shall be followed in case of any temporary discontinuance of mine.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 172

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 No temporary discontinuance is anticipated during the closure plan period.

Protection of the pits:

The pit area of the lease will be protected by fence as per DGMS circular all around the open pit with caution board displaying the danger in local language.

Protection of area:

There will be protected by displaying a board at the entry with caption like “Entry in the premises without permission is strictly prohibited” in local language.

Maintenance and monitoring:

The area will be monitored every week by competent person and if maintenance is needed will be done as per requirement.

 All the mining machinery shall be shifted to a safe place.

 Care and upkeep of plantation done shall be carried out on regular basis.

 All rules and regulations shall be followed in case of any temporary discontinuance of mine.

Precaution and emergency plan During & After Seismic activity

As per 2002 Bureau of Indian Standards (BIS) Assam comes under Seismic Zone-V- high to very high seismic hazard. No sever damage to man & material by earthquake has been reported till date. In case of emergency

• Any person noticing any symptom of earthquake at Mine site shall immediately inform the Shift In-

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 173

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

charge (Mines) phone No. 8811028649 and give details of the incident. • Shift In-charge (Mines) shall immediately rushes to the sensitive zone for rescue operations. • HOD (Mines), HOD (Safety) & HOD (Security) shall co- ordinate the operations.

Mitigate actions

• Provision of medical facilities to causalities, if any • Safely removal of people from hazard zone. • Identify any dead and ensure support to his family. • Provide authoritative information to the News media and other regulatory agencies.

7.5 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 lease area. Thus there is no impact on the human settlement and thus no R & R plan is required.

7.6 DISASTER PREVENTION MEASURES

In order to take care of above hazard / disasters the following control measures have been envisaged :  Checking and regular maintenance of garland drains and earthen bunds to avoid any inflow of surface water in the mine pit.

 Provision of high capacity pumps for pumping out water from the mining pit.

 Entry of unauthorized persons will be prohibited.  Firefighting 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 174

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 Training and refresher courses for all the employees working in the mine.

 Working of mine as per approved plan and regularly updating the mine plans.

 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.

As a precautionary measures before onset of monsoon, garland drain will be maintained to divert water from outside the mining area. The rainwater thus diverted is coursed to natural nallahs or collected in the sumps. This helps to control the inflow of water from the virgin areas into the mine workings. The floors of different benches are gently sloped so that working remain water free.

======**************======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 175

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – VIII

PROJECT BENEFIT

8.1 INTRODUCTION

This is a proposal for the production of 4,44,500 TPA Limestone from New Umrangshu Limestone Area (Lease area 200.00 ha) at Village – New Umrangshu, Taluka - Umrangshu, District –Dima Hasao (Assam), by M/s Assam Mineral Development Corporation Limited.

8.2 IMPROVEMENT IN SOCIAL INFRASTRUCTURE The lease area falls under waste land(council khas land) and mining will be carried out in the area. The mining activity will generate a lot of 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 migration of labour from the surrounding areas. For this reason there will be increase in the human settlement in the area. 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.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 176

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

8.4 HEALTH & SAFETY

 Proper health & safety measures will be taken while mining.

 All safety measures like use of safety appliances, safety awards, posters, slogans related to safety etc. Safety equipment’s shall be provided to the workers like helmets, safety boots, ear plug, safety belts, dust masks etc.

 Periodical health checkup of the employees shall be done.

 First Aid organization in mines including training and retraining of First Aid shall be done.

 Periodical training programme to inform the employees about their task, associated risk and safe working practices will be undertaken. Training will also include information on accident prevention, proper control and maintenance of equipment and safe material handling practices.

 Provision of rest shelters for mine workers with amenities like drinking water etc.

 Green belt in and around the mining area will be developed to attenuate noise and dust impacts.

8.5 EMPLOYMENT POTENTIAL

In the mine number of skilled and unskilled local workers will be employed. The project will generate direct and indirect employment. The employment potential due to the proposed project is given as under.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 177

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 8.1: EMPLOYMENT POTENTIAL S. No. Particulars Number 1. Managerial and Supervisory personnel (i) Mines Manager (As per MMR,1961) 1 (ii) Mining Engineer (As per MCDR, 1988) 1 (iii) Mining Geologist(As per MCDR, 1988) 1 (iv) Mining Mate/Supervisor 2 (v) Blaster 1 Total 6 2. Skilled: (i) Excavator operator 4 (ii) Tipper operator 12

(ii) Drill m/c operator 4

(iv) Driver Dozer 1

(v) Driver Water Tanker 1

(vi) Driver Jeep 1

Total 23

3. Semi- skilled: (i) Helpers 4 (ii) Clerk-cum-store keeper 1 Total 5 4. Un-Skilled: 2 Total 36

8.6 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 Applicant M/s Assam Mineral Development Corporation Ltd.

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.

======**************======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 178

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – IX

ENVIRONMENT MANAGEMENT PLAN

9.1 INTRODUCTION The environmental impact assessment presented in previous chapter is based on the control measures. It is concluded that the mining activities having substantial, but reversible impact on environment and the suggestive measures should be taken so as to minimize the impacts.

Environmental management plan details the environmental quality control measures which are proposed for this project to achieve the production of 4,44,500 TPA of Limestone (ROM) by complying with the stipulated standard limit specified by state pollution control board and CPCB.

Environment Management Plan, which is to be implemented in the project has detailed under the following heads:

 Land Reclamation

 Air Environment

 Water Environment

 Noise Environment

 Solid waste Management

 Biological Environment including Plantation Development

 Implementation of EMP and monitoring Programme

The environmental management plan has been developed with a view to bring down the level of impacts as discussed in the last chapter within limits. In each of the areas of impact, measures have to be taken to reduce potentially significant adverse impacts and

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 179

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

where these are beneficial in nature, such impacts are to be enhanced/augmented so that the overall adverse impacts are reduced to as lowest level as possible. Measures to be taken for each of the impact areas are detailed in the following Para:

9.2 LAND RECLAMATION

Land degradation is one of the major adverse impact of opencast & other miscellaneous activities related to mining and any effort to control adverse impacts would be incomplete without appropriate land reclamation strategy.

9.2.1 Post Mining Land Use

The leasehold area is Council khas land. The area proposed for mining has thin layer of top soil cover. Soil encountered, if any, will be stacked at earmarked site and ultimately used for plantation purposes. The surrounding area will not have any adverse impact on soil environment so no control measures are required.

In the operational phase, mining excavation will remain confined on hilly portion and at the end of plan period(next five year); about 6.39 hect. area will be covered under mining, about 319 hect. area will covered under dump, about 5.18 hect. under plantation.

The excavated area(90.72 hect) will be protected by suitable parapet wall. It is only at the end of lease period of the mine when its reach on ultimate depth. At the end of lease period total 65.180 ha. area will be planted which includes 5.180 hect area along lease boundary/ barren land, About 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area. Remaining mined out about 63.34 hect. will be use for rainwater storage. This water will then be utilized for local consumption and in agriculture purpose.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 180

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Though the lease area granted for a mine is in the immediate possession of the mine operator, necessary step to keep the area under disturbance at any stage of mining operations to the minimum shall be taken. This shall be achieved by ensuring reclamation of the excavated area concurrently with the mining activities by reducing the gap, between the first damage (due to mining activities) and the first repair (reclamation), to the minimum.

TABLE 9.1: LAND USE PATTERN AT THE END OF LEASE PERIOD (IN HECT.)

POST MINING LAND USE OF CORE ZONE WITH ENV. MANAGEMNET S. No. Activity Area In Ha. % of Total

1 Pits 90.720*** 45.36 2 Waste Dump 10.000* 5.00 3 Road & Building 4.000 2.00 4 Plantation 27.800** 13.90 5 Agriculture land -- -- 6 Mineral stack -- -- Remaining 7 67.480 33.74 Land Total area 200.00 100.00

Land Reclamation Strategy

The mining and related operations are planned to be carried out in only about 90.72 hectare out of the total lease area of 200 hectare up to the lease period. The reclamation strategy about 63.34 hect. partly excavated area will be used as rain water storage.

The mine position at end of plan period is showing in layout plan as well as in conceptual plan. As can be seen from the above plates, the reclamation area increases in subsequent stages. The green belt and

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 181

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

other undisturbed areas forming part of the green belt are planted systematically as a continued activity from present and completed by the end of lease period. The cumulative break-up of disturbed, afforested and reclaimed lands stages wise is given in below table.

TABLE 9.2: RECLAIMED LAND IN DIFFERENT STAGES (IN HECT.) Land: Stage Wise use reclamation Area (Ha.) Reclaimed/Rehabilitated S. Afforestation Afforestation Year Disturbed Afforestation Water No. on mined out on waste reservoir benches dump 1. Present 11.718 5.18 ------2. 5th Year 35.250 15.18 ------End of 3. 104.72** 65.18 27.38 10.00* 63.34 Life ** Include 4 .00 hect office & Road.

At the end of lease period total 65.180 ha. area will be planted which includes 5.18 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area. .

9.3 AIR POLLUTION CONTROL MEASURES

The future mining operations are not anticipated to raise the concentration of the pollutants beyond prescribed limits. However,

the following measures would be adopted to mitigate the PM10 levels in ambient air.

Mitigate measures suggested for air pollution control are based on the baseline ambient air quality monitoring data. From the point of view of maintenance of an acceptable ambient air quality in the region, it is

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 182

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

desirable that air quality should be monitored on a regular basis to check it vis-a-vis the standards prescribed by CPCB and in case of non- compliance; appropriate mitigative measures shall be adopted.

Measures to Prevent Generation & Dispersal of Dust

Dust particles that are normally generated during various mining

operations when become airborne lead to increase in PM10 level in the ambient air. Another source of dust generation is the transport of material by vehicle. Adequate control measures are being taken during mining operations as well as drilling, blasting, transportation of minerals. Dust suppression by water spraying is adopted on the roads. Maintenance of transported vehicles and haulage road on regular basis. Regular water spraying on haulage roads during transportation of limestone and waste by water sprinklers.

Measures to Control Pollution due to the Airborne Dust

In addition to the control measures taken during mining and transport operations, following steps are being adopted to prevent air pollution due to airborne dust. Trees would be planted along the lease boundary.

Reclamation and afforestation of mined out area as per schedule with minimum gap between excavation and reclamation to fix the dust and prevent its getting airborne.

Dust mask will be provided to the workers engaged at dust generation points like excavations, loading, drilling and unloading points.

Sprinkler arrangement will be used regularly to sprinkle water on the haul road as well as loading points. Dense green belts will be developed

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 183

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

around the dust generation points. Trees would be planted on both sides of roads used for transportation to arrest dust.

Afforestation around the mine to filter out the dust and preventing it from reaching the residential areas. Dust extractors will be provided in drilling machines to suppress air borne dust. Wherever possible wet drilling will be done. Air monitoring will be done once in six months. Workers engaged at dusty zones will be provided masks.

9.4 NOISE POLLUTION CONTROL MEASURES The noise level monitoring carried out in the area has indicated that the present noise levels near the lease boundary are generally within limits. The deployment of various machines for excavation, transport and other auxiliary operations will increase the noise levels but will be naturally attenuated within lease area itself. Additional measures shall be taken to further reduce the noise levels.

Measures to Control Pollution due to the Noise

The following control measures are being taken to keep the ambient noise levels well within limits:

Mitigate the noise level following control measures will be adopted: -  All the machineries including transport vehicles are properly maintained to minimize generation of noise. Adequate silencers in the machineries will be provided to reduce generation of noise.  Periodical monitoring of noise will be done.  Sharp bits will be used for drilling.  Regular and proper maintenance of noise generating machinery.  Plantation in mining area will – also reduce propagation of noise outside the core zone.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 184

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 Green belt should be provided at the lease periphery, within the lease area along the roads and all around the working areas, to screen the noise.

 Drilling with sharp bits also minimizes the noise.

 Earplugs will be provided to the workers.

Measures to protect workers from high noise levels & vibration control measures

The following measures will be taken to protect the workers from exposure to higher noise levels:  Provision of protective devices like ear muffs, ear plugs, etc.  Reducing the exposure time of workers to the higher noise levels by job rotation.

General precaution for blasting will be taken up as following:-

 The drilling and blasting will be done during mining, therefore noise level are proposed to be controlled by using sharp bits, wet drilling and use of explosives with right oxygen balance.

 The following precautions are being taken to minimize ground vibration and fly rocks which may be damaged due to vibrations.

 Blasting is being done by competent persons in the supervision of Mine’s Manager.

 Stemming length is kept more than one third of the hole, it helps in reduction of ground vibrations.

 Before drilling and blasting, the face is cleared with rock which may be source of fly rock.

 The blast holes are drilled slightly inclined towards the free face. This reduces noise, vibration and fly rocks.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 185

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

9.5 WATER POLLUTION CONTROL MEASURES

9.51 Surface Water

Since the major cause of surface water pollution during opencast mining activities is the wash off from freshly excavated areas, the programme to prevent water pollution shall focus on controlling wash off from these areas. Adequate control measures have been taken to check, not only the wash off from the freshly excavated areas and soil erosion.

The garland drains shall be made to carry away rainwater of the catchments area surrounding the working to the natural nallah. The drains shall be limed with stone masonry and shall be of adequate size to carry the storm water without overflow.

Other measures are :

 Toe walls shall be provided to prevent wash off and sliding of material from mine excavated areas.

 A water gradient of about 1 in 200 shall be kept at every bench towards inside of the bench to prevent formation of gully in the bench shape causing soil erosion.

9.5.2 Ground Water

There is no source (tube well/dug well) of ground water in the lease area. In the study area water sample, which was collected and analysis and all the parameters are with in drinking water standard prescribed by BIS. Limestone is non-toxic and no chemical treatment of mine water is required. Periodically water quality monitoring will be carried out and report will be submitted to concerned authorities. There would not be any adverse effect on the ground water quality. The mineral formation do not contain any harmful element, which could percolate into the

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 186

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

ground and pollute the ground water. Hence, no control measures are required.

There would not be any adverse impact on the ground water quality due to mining. The mineral formation do not contain any harmful element, which could percolate into the ground and pollute the ground water. Hence, no control measures are required.

However, regular monitoring of water levels and quality in the existing wells in the vicinity would be carried out both with reference to area spread and times intervals to study the hydrodynamics of the strata. If found necessary, additional observation wells would be sunk for monitoring the water levels and quality around the mine.

9.5.3 Water Conservation Measures

The ground water table in this region fluctuates between 20 and 25 mts. from the surface. At the end of lease period, about 56.820 hect area will be used as a water reservoir. It will arrest environmental pollution, erosion and upgrade the scenic beauty of the area. Proper fencing and slope will be maintained.

9.6 CONTROL MEASURES OF ECOLOGICAL FACTOR

The area is mostly rocky with poor density of vegetation. However, all possible steps will be taken to prevent pollution on air, water and soil of the area; plantation will be carried out around the lease to arrest the dust at source. The greenery will improve faunal environment of the area at the same time it will help in preventing environment pollution. This will help in reducing adverse impact on indigenous plant species found in the area.

No forest land in the lease area. It is entirely a Govt. waste land. No endangered species found in the lease area, so no adverse impact on the flora and fauna. Excavation in the lease area does not affect the flora in

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 187

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

the area where these operations are carried out. Since there is no endangered species of flora & fauna observed in core zone as well as in study area, so no adverse impacts on the flora & fauna, therefore measures are not required.

9.7 STABILIZATION & VEGETATION OF DUMPS

Top soil is present in the southern side of the applied area and is very less (i.e. 0.15mtr to 0.30mtr). Scanty sub-soil is present in cracks and fissures. Naturally, it is fertile black cotton soil/clayey soil. Efforts shall be made to recover the sub-soil from the cracks and fissures, it shall be scrapped in separate slice and shall be kept preserved as stacks under tarpaulin cover and utilizes for plantation work. The quantity assessment of top soil is very difficult as the exact thickness is not possible to measure.

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. The year-wise accretions of overburden are given below:

TABLE 9.3: WASTE GENERATION DURING PLAN PERIOD Year Waste In-situ volume Broken rock volume Dump Area in ha, Ist 109870 142831 0.67 IInd 70150 91195 0.44 IIIrd 99910 129883 0.61 IVth 106390 138307 0.63 Vth 95480 124124 0.66 Total 481800 626340 3.01

The waste generated will be stored in the south – eastern corner of the lease area, as shown on the plan. Area covered by the waste dump will be

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 188

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

6.20 hectares by the end of plan period and about 10.00 hectares by the end of life of mine (up to end of lease period).

The waste shall be dumped in the south – eastern corner of the lease area. Terraces of 10 height shall be formed for stability of the dump. A stone wall of 1.5 height and 1.0 m width shall be constructed on sloping face of the dump surface, to prevent rolling of stones along the slope. During five year period about 824 m of stone wall is proposed to be constructed. A garland drain of about 868 m shall be constructed all around the dump to arrest the wash off from the dump. By the end of life of mine i.e. up to lease period dump size will be 10.00 hectares with 50 m height.

Protective Measures : Waste dump at the conceptual stage will have five terraces. Following protective and stabilization measures are proposed to prevent rolling of rocks and wash off entering into drainage system of the area:

 Final slope of the dump will be divided into terraces with berms in between.

 Retention walls: Retention walls are built at sufficient distance away. The purpose of retention wall is to arrest silt and rolling material. A drain parallel to retention wall is made between the dump and retention wall which acts as a dissipater against boulders directly hitting the retention wall. The face of the retention wall away from the dump filled with vegetative soil and plantation done. This would take care of retention wall weakening over a period of time.

 Each terrace will be provided with Gabion toe wall with multching to promote vegetation.

 Coir Matting: Once the part of the dump is matured, the dump slope shall be shall be covered with coir matting and secured with U pins. The coir matting has an advantage of absorbing water and keeping the soil damp. Once the natural vegetation takes over the mat decomposes gradually and disintegrates.

 Plantation; seedlings grown with root trainer will be planted on the slope and floor of the terrace at a spacing of 3 x 3 m. staggered pattern. In

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 189

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

between the plants Vetiver or Hemata grass will be grown which has good soil binding characteristics.

At the final stage contour ripping will be done on top of the done to prevent formation of gullies along the slope of the dump.

9.8 TREATMENT & DISPOSAL OF WATER FROM MINE

There is no proposal of beneficiation plant for processing of limestone, so no effluent will be generated. The collected rain water will be used in agriculture purpose, dust suppression and green belt.

9.9 SOIL CONSERVATION MEASURES

There are patches of thin layer of soil over mineralized area whose quantity assessment is very difficult, however during mining soil will be removed in advance. Efforts shall be made to recover the sub-soil from the cracks and fissures, it shall be scrapped in separate slice and shall be kept preserved as stacks under tarpaulin cover and utilizes for plantation work.

9.9.1 Stacking of top Soil

Top soil is present in the southern side of the lease area and is very less (i.e. 0.15mtr to 0.30mtr). Scanty sub-soil is present in cracks and fissures. Naturally, it is fertile black cotton soil/clayey soil. Efforts shall be made to recover the sub-soil from the cracks and fissures, it shall be scrapped in separate slice and shall be kept preserved as stacks under tarpaulin cover and utilizes for plantation work. The quantity assessment of top soil is very difficult as the exact thickness is not possible to measure.

9.10 PROGRAMME OF AFFORESTATION

The main aim of plantation of mined out areas is to control dust/noise in the area and to protect land from erosion and provide an aesthetic

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 190

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

landscape. Keeping the conceptual plan at abandoned stage in mine the stage wise plantation will be done.

At the end of lease period total 65.180 ha. area will be planted which includes 5.180 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area. About 56.820 hect area will be used as a water reservoir. It will arrest environmental pollution, erosion and upgrade the scenic beauty of the area. Planting and sowing operations are followed up with adequate post plantation care, which includes replacement of casualties.

TABLE 9.4: STAGE WISE PLANTATION PROGRAMME

Peripheral Dump Barren area Mined out benches Along nallah Total Year Area Area Area Area Area Area Trees Trees Trees Trees Trees Trees (Hect.) (Hect.) (Hect.) (Hect.) (Hect.) (Hect.)

Existing ------5.18 5180 ------5.18 5180

I 1 1000 ------1 1000 2 2000 II 1 1000 ------1 1000 2 2000 III 1 1000 ------1 1000 2 2000 IV 1 1000 ------1 1000 2 2000 V 1.18 1180 -- -- 4.82 4820 -- -- 0.82 820 6.82 6820 End of Plan 5.18 5180 -- -- 10.0 10000 -- -- 4.82 4820 20 20000 period Up to Lease -- -- 10 10000 - - 27.38 27380 7.80 7800 45.18 50000 Period Total 5.18 5180 10 10000 10.00 10000 27.38 27380 12.62 12620 65.18 65180

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 191

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 9.5: SCHEDULE OF PLANTATION Afforestation in Hectare Mined Along Remarks Year Stage Dump Barren No. of Peripheral out the area Land trees benches nallah Present -- -- 5.18 -- -- 5180 - Green belt; Operational 5.18 5.00 10.00 12.20 12.62 45000 Afforestation along Phase the lease boundary Green belt; Afforestation on End of peripheral of lease Lease 5.18 10.00 10.00 27.38 12.62 65180 boundary, on Period barren land & on mined out benches.

The Company has proposes 2000 plants(max.) per year to be planted along lease boundary & on barren area. In the operational phase, 45.00 hectare will be covered by the plantation. A number of species will be planted suiting to this area of climate conditions. The afforested area will be encircled by a boundary of local thorny bushes to protect it from cattle’s and regular watering thrice a week (except monsoon) & manuring will be done.

9.10.1 Plantation Development

The main aim of plantation of mine areas is to control dust/noise in the area, and to protect land from erosion and provide an aesthetic landscape. Keeping the up to the plan period in mine the stage wise plantation will be done.  Plantation is an important sink of air pollutants including noise. Green cover in mining area not only helps in reducing pollution level, but also improves the aesthetic and beneficially influence the microclimate of the surrounding.  It also attracts the animals to re-colonize the area when the mine is abandoned. However green belt may be developed with plant species suitable to the area.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 192

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 The species, selected for plantation should have rapid growth, evergreen, large crown volume and small/pendulous leave with smooth surface. In this river bed mining project plantation will be developed along the approach roads and sides of river bank. Thick plantation will work as a pollutant arrestor, reduces floods as well as avoids the situation of erosion of soil during monsoon season. For the selection of plantation species, will be discussed with Forest Department.

Total 65.180 hectare are will be covered by the plantation. It will arrest environmental pollution, erosion and upgrade the scenic beauty of the area. Planting and sowing operations are followed up with adequate Post plantation care, which includes replacement of casualties.

Afforestation will be done under the supervision of experienced horticulturists and guidance of local forest authorities. Planting and sowing operations are followed up with adequate post plantation care, which includes replacement of casualties. Weeding, soil working, manuring, watering, protection from grazing etc. The list of species that have been successfully grown under similar site conditions and being planted.

Planting Methodology Trees The plantation shall be done in pits. Pits of about 50-cm diameter shall be dug in grid of 3m x 3m up to a depth of 0.5 m. The pits shall be refilled with topsoil after planting the samplings. The samplings of healthy, nursery raised, seedlings in polythene containers shall be transported in baskets. Planting shall be done after first monsoon showers.

The level of the soil shall be about 10 cm above the general ground level. The soil around the plant shall be pressed to form a low

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 193

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

trough. About 25 gm of chemical fertilizer shall be added in ring of 25-cm radius around the plant. Watering shall be continued after plantation if any dry spell follows. Cleaning and weeding shall be done twice during first and once during following season. Planted area shall be inspected and mortality rate ensured for each species. The dead and dying plants shall be replaced by fresh seedlings.

Shrubs

Small pits of 30 cm x 30 cm would be dug before the rains. Soon after the rains set in, surplus plants from the adjoining areas would be dug out along with roots and earth around them and transported to site carefully. The shoots of shrubs would first be trimmed with garden scissors at a height of about 45 cm from the ground level, leaving only few leaves(in the lower portion ), to minimize water loss due to transpiration from leaves. The shrub will be planted in the pits and refilled with soil mixed with 3 kg of farmyard manure.

The planting spacing shall be 1.5 m x 1.5 m. Weeding will generally not be needed.

Nursery

Success of Afforestation measures at site will depend on investigation of soil, selection of suitable species to be grown and a good planting stock. Afforestation will be carried out in accordance with an elaborate timetable to be drawn up for sowing and plantation depending upon the afforestation requirements and species to be planted. The relevant works for the success of reclamation and afforestation activities will be carried out after consultation with people of forest department.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 194

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Protection of Plantation Sites

The reclaimed and afforested areas have to be protected from cattle menace, human interference, soil erosion, plant diseases, etc. Check bunds, masonry chutes, protected drains, etc. will be constructed wherever required to control and regulate the water flow to prevent soil erosion and washing away of nutrients. 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 from cattle menace and human interference by providing fencing and proper watch and ward.

9.10.2 General Guidelines for Plantation Development

 Trees growing upto 5m or more in height will be planted around the vicinity of lease periphery.

 Trees will be planted along roadsides, to arrest auto – exhaust and noise pollution, and in such a way that there is no direct line of sight to the working site when viewed from a point outside the foliage perimeter.

 Since tree trunks are normally devoid of foliage (upto 3mt.), it will be appropriate to have shrubbery in form of such trees to give coverage to trunk portion of these trees.

 Fast growing trees with thick perennial foliage will be grown, as it will take many years for other trees to grow to their full height.

In order to facilitate the proper growth of vegetation, limited measures involving preparation of seedbed with suitable amount of fertilizers and treatment with mulches will be taken. Vegetation cover generally helps in:  Stabilizing erodible slopes to minimize pollution.  Control of dust & Reducing noise.  Enhancement of aesthetic value.  Maximizing evpo-transpiration, which helps minimizing run off.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 195

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

For re-vegetation, the plants and saplings suitable for the existing soils and site condition may consider. It is recommended to plant fast growing local plant species, which can adapt to the local climate. This has to be done in consultation with local Government Horticulturist.

9.11 MEASURES FOR PROTECTING HISTORICAL MONUMENTS AND REHABILITATION

No human settlement is within the mining lease and there is no historical monument. Therefore, no mitigation measure is to be taken.

9.12 MEASURES TO IMPROVE SOCIO ECONOMIC CONDITIONS

The overall impact of Umrangshu limestone Mines will be on the socio-economics of the area has been a very positive one, in that not only it has generated considerable employment for local population but it has also given a good boost to the general economy of the area. Creation of several hundred comparatively well paid jobs in the area has boosted household employment, as also general trade, in the tertiary sector. The Mine will also boost trade in the supply of spares, in engineering jobs on contract, as well as in civil works.

There will be over all positive effect on social life on the local people, as they will get job opportunity, transport and medical facilities so the mining activities will benefit them directly or indirectly.  Limestone production and employment opportunities.

 Reduction in the migration of jobless laborers from native place to other distant places.

 Interaction of local people with outsides, and improvement in communication, which will enhance their present status of knowledge and confidence.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 196

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

9.12.1 Employment

The mining operations will employ about total 36 persons. Preference will be given to the local population while inducting any manpower. The future mining activity would provide indirect employment to a large number of local population in activities like planting and watering of trees for green belt development and reclamation of mined out areas for which the requirement will increase over a period of time.

9.12.2 Business Promotion

While off-loading the jobs to outside parties’ preference will be given to the local people.

The animal husbandry, which is already well established in the area will get a further boost as the demand of milk, meat etc. will increase due to influx of population related to the mining activities. It will improve the economic conditions of the people and will enable them to improve their livestock quality through improved animal husbandry practices.

9.12.3 Communication & transport Communication facilities will be created such as approach roads, telephone, mobile services and provide transportation by jeep & mini bus to reach nearby post offices and amenities like schools, hospitals, market centers etc. which will be benefit the local population.

9.13 CORPORATE SOCIAL RESPONSIBILITIES

All the workers have been employed from nearby villages.

The company will take interest for the welfare amenities scheme in the area with the help of local people; scholarship will be given to the students getting highest marks in District level/State level exams.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 197

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

All other facilities like medical help for the children & women/widow etc., medical camps in nearby area. Computer facilities will be provided to the school by the association.

TABLE: 9.6 BUDGETARY PROVISION FOR SOCIAL DEVELOPMENT ACTIVITIES

S.No. Detail Expenditure per year ( in lac/year) 1. Provide clean drinking facility in Umrangshu 1,00,000 village 2. Construct village road of Umrangshu 3,50,000

3. Distribute free books & school uniform in School in 1,50,000 Umrangshu village

4. Construct washroom for girls at Umrangshu 2,00,000 village. 5. Provide free medical health check-up camps & free 3,00,000 medicine distribution. 6. Give scholarship to bright students. 1,00,000 Total 12,00,000

9.14 OCCUPATIONAL SAFETY & HEALTH The medical histories of all employees will be maintained as per mines rules, 1955 chapter – IV-A1. Thereafter, the employees will be subjected to medical examination on annual basis. The above tests keep upgrading the database of medical history of the employees.

Occupational safety and health is very closely related to productivity and good employer-employee relationship. The main factors of occupational health in limestone mine are fugitive dust and noise. Safety of employee during mining operation and maintenance of mining equipment will be taken care as per Mines Act. To avoid any adverse effect on the health of workers due to dust, heat, noise

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 198

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

and vibration sufficient measures have been provided in the mining project.

Safety of employee during mining operation and maintenance of mining equipment will be taken care as per MMR 1961 & MCDR 1988. To avoid any adverse effect on the health of workers due to dust, heat, noise and vibration sufficient measures have been provided in the mining project. These include:

Provision of rest shelters for mine workers with amenities like drinking water, toilets 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 are 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  Sputum Examination  Detailed Routine Blood and Urine examination

The medical histories of all employees are maintained in a standard format. Thereafter, the employees are subjected to medical examination on annual basis. The above tests keep upgrading the database of medical history of the employees.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 199

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

A) Budget For Occupational Health for employed : Particulars Capital Cost Rs. Occupational Health Survey for Industrial 1,50,000 Disease for 36 person employed at 6 Month interval Total 1,50,000

B) Budgetary Breakup & Facility Provided for the Staff & Laborers(36No.)

Sr. Facility provided for Amount per Total Remarks No. laborers Month Amount per Year 1. Drinking water By 5000/- 60,000/- -- Tanker 2. First Aid Box - 18,000/- -- 3. Rest Shelter - 1,50,000/- ONE TIME/YR. 4. Wash Room - 50,000/- ONE TIME/YR. 5. Safety Shoes - 36,000/- TWO TIME/YR. 6. Hand Gloves 1500/- 18,000/- ONE TIME IN MONTH 7. Dust mask 1500/- 36,000/- TWO TIME IN MONTH 8. Ear Plugs 1000/- 12,000/- -- 9. Helmet 12,600/- THREE YEAR

10 Insurance 18,000/- ONE TIME

TOTAL 4,10,600/-

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 200

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

C) Budget For Occupational Health for villagers in Buffer zone:

Particulars Capital Cost Rs. Health Camps twice in year for villagers living in 1,50,000 Buffer Zone. (Total No. of Villages=16) Total 1,50,000

9.15 TRAINING & HUMAN RESOURCES DEVELOPMENT

Though stress shall be on appointing qualified and experienced personal in various disciplines, it shall also be ensured that they are adequately trained for the jobs expected of them. For this basic training shall be given to raw and new appointees, whereas refresher training shall be given to others keeping in view provisions of Mines Vocational Training Rules 1966.

The training of mine personnel will be conducted regularly with respect to environmental protection. Training facilities are envisaged in the mine site. Specialized courses will be arranged for afforestation, re-vegetation, reclamation etc. in various Institutes and organizations.

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 lessee looks forward to continue the process by way of participative trained of the personnel in various workshops, seminars training courses organized by professional agencies.

9.16 ENVIRONMENTAL MANAGEMENT CELL

Apart from having an EMP, it is also necessary to have a permanent organizational set up charged with the task of ensuring its effective implementation.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 201

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 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.

The 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 will 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.

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, afforestation and green belt development.

9.16.1 Aesthetic Environment

The plantation of a number of various species in the proposed area for plantation will improve the aesthetic environment over this area.

======**************======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 202

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – X SUMMARY & CONCLUSION

10.1 INTRODUCTION Success of any environmental management programme depends upon the efficiency of the organizational set up responsible for the implementation of the programme. Regular monitoring of the various environmental parameters is also necessary to evaluate the effectiveness of the management programme so that necessary corrective measures can be taken in case there are some drawbacks in the proposed programme. Since environmental quality parameters at work zone are important for maintaining safety the monitoring work forms part of safety measures also.

10.2 AVAILABILITY OF FUNDS FOR ENVIRONMENT PROTECTION MEASURES

10.2.1 Funds for Green Belt Protection The management of Umrangshu Limestone Area is very conscious to minimize the existing pollution load in the lease area. A thick canopy cover of green belt is being developed as discussed in the earlier chapters. Over 2000 numbers of trees/year on barren land will be planted for environmental protection measures. A recurring amount of Rs. 3.0 lacs will be spent every year.

10.2.2 Funds for Dust Suppression Water is spread around the mining area through pipes laid down on tankers to control the dust suppression. An amount of Rs. 1.0 lac will be spent every year on dust suppression measures.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 203

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

10.3 DETAILS OF THE PROJECT TABLE 10.1: PROJECT DETAILS Particulars Details Mine New Umrangshu Limestone Mine Village Umrangshu Taluka Umrangshu District Dima Hasao State Assam Latitude 25°31’17.27” :: 25°32’40.56” N Longitude 92°47’54.36” :: 92°47’26.39” E PROJECT DETAILS Area of the Mine 200 ha Manpower (proposed) 36 persons Water 12.0 KLD Green Belt/ Plantation 37.80 ha. Development (proposed)

Capital Cost for EMP 28.0 lac

Annual Recurring Cost 7.25 lac from EMP Capital Cost of the Project 260.0 lac

10.4 IMPLEMENTATION SCHEDULE The implementation of these mitigation measures, it is important to monitor various environmental parameters so as to ensure proper working of all the environmental of control measures. This section presents the monitoring schedule and infrastructural requirement for environmental protection given in below table.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 204

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

TABLE 10.2: MONITORING SCHEDULE FOR ENVIRONMENTAL PARAMETERS Monitoring Duration of Important Monitoring Particulars Frequencies Station Parameters pH, SS, TDS, Iron, Surface water / Once in a Hardness, Alkalinity, Ground water Grab year Chlorides, Nitrates, Sampling Sulphate & Fluorides Ambient air Twice in a quality 24 hr. PM10, SO2 and NOx year. monitoring Noise Twice in a Level in dB(A) and 8 hr. Monitoring year. dB(C) PH, Conductivity, Once in a Sulphate, Nitrate, Soil Sampling Grab year Phosphates, Alkalinity & texture.

10.5 BUDGETARY PROVISION FOR ENVIRONMENTAL MANAGEMENT The below table give overall investment on the environmental safeguards & recurring expenditure for monitoring & implementation of control measures.

TABLE 10.3: COST OF ENVIRONMENTAL PROTECTION MEASURES (Investment and recurring cost Rs. Lakh) S. Capital Recurring cost Particulars No cost / annum 1. Pollution Control 5.00 1.00 2. Pollution Monitoring 5.00 1.50 3. Plantation on Barren Area 10.00 3.00 4. Occupation Health 3.00 0.75 Miscellaneous (Fencing, 5. 5.00 1.00 Garland Drains etc.) Total 28.00 7.25

Total investment on environmental improvement works existing and envisaged Rs. 28.00 lakhs and recurring expenditure during the stage of production is Rs. 7.25 lakhs per year.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 205

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

10.6 GREENBELT DEVELOPMENT The Company has planned to develop total 65.180 ha. area will be planted area under greenbelt/ plantation at the end of lease period of mine which includes 5.180 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area. About 63.64 hect area will be used as a water reservoir. This will help in reducing the spread of pollutants and will also be effective in attenuating noise levels.

10.7 RECOMMENDATION M/s UDAIPUR MIN-TECH PVT. LTD. survey reveals that the management will be providing continual improvement of Environment. The air environment and other emissions will be regularly sprinkled with water. The management will provide ear muffs and helmets to the workers in the mine and stress on its utilization. The regular medical check-up of workers is to be carried out. Green belt development is to be stressed and workers must be motivated for plantation care.

The general environmental awareness will be given to the local workers. Regular maintenance of vehicle will be carried out. Slogans of Environment, health & safety will be recommended for display.

The management must keenly celebrate the importance of World Environment Day to create awareness amongst the workers. Conservation of soil and water must be emphasized not only at works but also at their own place. With implementation of Environment management plan and providing continual improvement the mine may be accorded environmental clearance.

======**************======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 206

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER – XI

11.0 ASSESSMENT OF ECOLOGICAL DAMAGE, REMEDIATION PLAN AND NATURAL & COMMUNITY RESOURCE AUGMENTATION PLAN (NCRAP)

As lessee produced mineral without obtaining prior environmental clearance which is in violation of the provision of EIA notification 2006. points to be clarified of additional TOR on assessment of ecological damage, remediation plan and natural and community resource augmentation plan, as separate chapter ( as per the 19th meeting of the expert appraisal committee for environmental appraisal of M/s AMDC LTD.,Guwahati(Assam), lease area 200.00 hectare held through video conference held on Dt. 23rd July 2020.)

11.1 ASSESSMENT OF ECOLOGICAL DAMAGE DUE TO VIOLATION:

The purpose of this chapter is to assess the Ecological Damage caused due to mining during the violation period, prepare Remediation Plan and Natural and Community Resource Augmentation Plan.

11.1.1.Site Specific Features

Site specific features/criteria and mining operations considered for assessment of Ecological Damage are given below: -

 The ML area is a Govt. (Khas) land.

 No forest land is involved as per govt. record & does not fall under any classified forest i.e. RF/PF.

 The mine habitats sparse vegetation of grass and shrubs.

 No agricultural activities within the mining lease area.

 No/very little topsoil(in cracks) is present in the Mining Lease Area.

 No surface water body except on Nallah within lease area.

 No groundwater intersect during mining.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 207

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 No habitation within lease area.

 The mining lease area is a hilly terrain.

 The Project does not fall in CRZ zone.

 No National Parks or Sanctuaries are located within 10 km radius.

Schedule – I Species (Fauna) is not present in the 10 km radius of the proposed project.

11.1.2. Mining Operations

The salient points of method of mining are given below:-

 It is an opencast mechanized mining.

 Mineral was exploited using drilling & blasting.

 The blasted material is loaded into tipper using excavators.

 No mine reject generated during Mining of total ROM of limestone. Overburden will be generated as Shale & Sandstone rocks over limestone band.

 Bench height has been kept 6.0 m, width of benches 18-25 m progressives mineral to win stage, (6 m at the time of final closure of the mine).

 The mining faces opens from top of the existing pit.

 Proper precautionary measures, like provisions and maintenance of Check dams, shall be taken to prevent soil erosion.

 Surface drainage channels and parapet walls shall be provided along roads and benches wherever necessary so that rain water does not enter the benches and flows downwards towards the natural slope/along water courses.

 The 7.5m barrier will be maintained all along the lease boundary and vegetation growth generated on such boundary to isolate mining from rest of the area.

 Dump yards for preservation of O/B will be provided.

 The existing unsafe benches shall be systematized by reducing their

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 208

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

height.

 Necessary steps shall be taken for protection of environment, tree plantation, and improvement of ecology & aesthetics of the area in tune with the guide lines from State Govt. from time to time. Expert advice from Conifers Research Station, Shimla, Aus. Aid Project agency and other forest officials shall continue to be taken and implemented.

 The general road gradient shall be maintained at 1 in 16. Proper crossing points and stop-overs shall be provided at suitable points for the trucks plying on the roads.

11.1.3 DAMAGE ASSESSMENT

The following points are considered for Assessment of Ecological damage: a) Damage due to change in Land use. b) Damage of Surface water resources c) Damage of Ground water resources d) Damage due to non-implementation of EMP.

a) Damage due to change in Land use/Land cover

The mining operations have led to change in land use of the Mining area. Remote Sensing Technique has been used for Assessment of LULC. Effect on the Land use/Land cover of the mining area during the Violation Period (01st Apr.2001 to 12th Jan.2012) can be represented by showing the difference between the previous and after land use map of violation period.

The comparison of the land/land cover before and after the violation period is represented in fig below.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 209

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Fig-11.1 : WORKING POSITION UP TO 31ST MARCH 2001

*Source:- Approved Mining Plan

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 210

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Fig.-11.2: Working position from 1st Apr. 2001 to 12th Jan.2012

*Source:- Approved Mining Plan

Particulars Position of the area Position of the area Increasing area Up to 31st March 2001 Up to January 2012 during Violation (in Hect.) (in Hect.) Period (in Hect.) Working Mining pit 4.758 6.390 1.632 Dump area 2.980 3.190 0.120 Mine Road 1.020 1.020 Nil Plantation 3.600 5.180 1.580 Building Area 1.118 1.118 Nil Remaining 187.462 183.040 - Undisturbed area Total Area 200.00 Hect. 200.00 Hect.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 211

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Fig. - 11.3: Google Image as on March 2001

Fig.-11.4 : Google Image as on January 2012

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 212

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Environmental(Ecological, Surface & Ground water) Damage :

The major impact because of mineral production without obtained environment clearance is mainly on land degradation & ambient air quality due to drilling & blasting and then material handling & transportation. No impact on surface as well as ground water. Mining was done on hill slope where no surface water body except one nallah exists within or nearby lease area and also due to mining ground water was not interrupted.

The monitored values are given earlier in this report. The values are within limits. However, remediation plan for further improvement in ambient air quality is given in next para. Minor impact on land degradation due to mining without obtaining EC. There is no village in this impact zone (core zone).

Status of Flora-Fauna: The impact of production on flora fauna has been studied and the observations are as given below:

 As this mine is an existing mine and mining activity has been done without EC, the presence of flora & fauna especially in the core zone of the mine is given in previous para. However grass & bushes was removed, where working was done in way of pitting.

 No land outside lease boundary was disturbed/degraded.

 The biological study of the area has been conducted in order to understand the ecological status of the existing flora and fauna to generate baseline information and evaluate the probable impacts on the biological environment. The secondary data on flora and fauna is obtained from the forest department.

 The given species list in above para are not endemic, rare or endangered, inevitable developmental activity may be undertaken with all the precautionary measures of ecological sustainability e.g. Controlled noise level & air pollution and green belt development.

 No Eco-sensitive zone i.e. : National park, wildlife Sanctuary, Biosphere Reserves, Tiger/Elephant Reserves, wildlife corridor etc. fall

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 213

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

within 10 km radius of the mine area. No P/F within study area, only one R/F fall within buffer zone.

 Mine area(Core zone), No wild life animals, Rare endemic & Threatened Species etc. were not recorded within 10 Km radius area of mine site. No schedule –I species were recoded.

Therefore, marginal or no impact on terrestrial flora and no irreparable loss to the wildlife habitats and associated fauna due to the mining activity is observed in core zone.

Socio-Economic condition:

 No Villages falling within the core zone. Therefore, no socio- economic aspect needs to be observed within core zone.

 There are 16 villages in buffer zone. Socio-economic condition of those villages is improving gradually as data is based on 2011 census.

 Most of the villagers in adjacent villages are involved in mining & agriculture related support activities. Therefore, they are in relatively better socio-economic situation. However, economic prosperity in many instances has not resulted in to better education to children.

11.2 ENVIRONMENT MANAGEMENT PLAN

11.2.1 AIR QUALITY MANAGEMENT

The potential sources of air pollution due to the existing mining activities and proposed activity is excavation, loading, unloading, transportation and exhaust fumes of machines. The air pollution may be broadly classified into two categories:-

(i) Gaseous pollutants (NOx, SO2 and CO) due to deployment of HEMM and transport vehicles.

(ii) Suspended particulate matter (SPM).

As per the results of ambient air quality monitoring data, the back ground concentrations of PM10, PM 2.5, SO2 and NO2 are within the stipulated CPCB

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 214

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

standards. The present level of mining and proposed production of the mine is not expected to increase the gaseous pollutants beyond the permissible limits. However following measures will be taken to minimize\nullify the SPM levels in ambient air.

The environmental control measures proposed are given below:

Air pollution control measures:-

Air pollution control strategy involves planning a series of preventive and suppressive measures. These will contain the generation and dispersion of fugitive dust i.e. dust which is not captured during mining operation.

(a) Preventive measures:-

The following preventive measures will be practiced to prevent air pollution. 1. Proper maintenance of vehicles would reduce gas emission. 2. Restriction of the speed of vehicles would reduce dust generation. 3. Sprinkling of water will be done on the haul roads to prevent dust generation during plying of vehicles.

4. To reduce dust generation during loading operation water will be sprayed over the muck pile to be loaded.

5. To reduce spread of dust, plantation will be done along the mining lease boundary a well as by the side of the haul road.

6. Reclaimed area will be stabilized and consolidated by plantation to prevent generation of air borne dust.

7.Fugitive dust generation will be controlled at source and regularly monitored.

(b) Suppressive measures:-

1. Haul road will be maintained regularly Frequent water spraying on haul roads to prevent generation of air borne dust.

2. Regular maintenance of vehicles & machineries will be carried out in order to control emissions.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 215

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3. A good housekeeping and proper maintenance will be practiced which will help in controlling pollution.

4. Over loading of vehicles will be avoided as spillage generates dust.

5. Dust masks will be provided to the workers working in the loading operations.

6. Limestone carrying trucks will be effectively covered by tarpaulin to avoid escape of fines to the ambient air.

(c) Proposed Monitoring:-

1. Periodical monitoring of air samples will be carried out at various locations within core zone as well as buffer zone.

2. Vehicular emission will be regularly monitored. Periodic health check up for the workers shall be done.

11.2.2. WATER MANAGEMENT AND WATER POLLUTION CONTROL

It is proposed to exploit mineral from 436 mRL to 304 mRL. The ground water table (25-20mbgl) thus shall not be encountered nor shall groundwater regime be affected.  Amrang Nallah will fully protect with retaining wall along both side and Check dam in particular interval will be proposed along nallah fallow and it will be cleaned in every monsoon for avoid debris or waste to get mixed in any surface body.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 216

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 Retaining walls with weep holes should be built all-round the dumps. The storm water should pass through weep holes to the garland drains as detailed out in mining plan and EMP.

 The plantation as detailed out in EMP shall further help reduce surface water pollution.

 A temporary toilet with septic tank shall be provided at the site for the use of workers during day time to prevent toilet in open.

GROUND WATER

There would not be any adverse on the ground water quality. The mineral formation do not contain any harmful element, which could percolate into the ground and pollute the ground water. Hence, no control measures are required. Nor mining intersects ground water table.

However, regular monitoring of quality in the existing resources in the vicinity would be carried out both with reference to area spread and times intervals to study the hydrodynamics of the strata. Post-monsoon and Pre-monsoon groundwater level will be monitored regularly.

11.2.3. NOISE POLLUTION CONTROL The noise level monitoring carried out in the area has indicated that the present noise levels near the lease boundary are generally within limits. The deployment various machines for excavation, transport and other auxiliary operations have increased the noise levels but are naturally attenuated within lease area itself. Additional measures are being taken to further reduce the noise levels.

MEASURES TO REDUCE AMBIENT NOISE LEVELS The following control measures are being taken to keep the ambient noise levels well within limits:

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 217

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 A thick tree belt is being developed around the periphery of the mine to attenuate the noise levels.

 Trees would be planted on both sides of roads being used for transport of men and material.

 Proper maintenance of noise generating machinery including the transport vehicles.

 Provision of silencers to reduce the engine noise of machines.

MEASURES TO PROTECT WORKERS FROM HIGH NOISE LEVELS & VIBRATION CONTROL MEASURES

The following measures are being taken to protect the workers from exposure to higher noise levels :

 Provision of protective devices like ear muffs, ear plugs, etc.

 Reducing the exposure time of workers to the higher noise levels by job rotation.

GROUND VIBRATION CONTROL MEASURES

The drilling and blasting will be done during mining, therefore noise level are proposed to be controlled by using sharp bits, wet drilling and use of explosives with right oxygen balance.

11.2.4 BIOLOGICAL MANAGEMENT The existing mine lease area is Council Khas land. There is no forest land within the mine lease area. There are no national parks, sanctuaries, notified biospheres, Tiger/Elephant Corridors, Birds migratory routes, etc. within 10 km radius. One R/F is exist within 10 km radius only. There is no release of any effluent.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 218

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Impact on Flora and Fauna: The activities as blasting including drilling holes, operation of machinery as excavator and movement of trucks can have impact in terms of disturbance due to noise; interference in movement etc.

Mitigation Measures:

 Plantation shall be undertaken as detailed out in mining plan and EMP every year so that the mined area provides adequate green cover in a reasonable time.

 Plantation shall 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.

 Mining activities shall be restricted to day time from 9AM to 6 PM so that fauna is not disturbed at night.

 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.

 Water bodies shall be created in the area.  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 atmospheric concentrations normally do not reach a level sufficient to induce acute injury. A perusal of previous section reveals that

the maximum incremental ground level concentrations for PM10 likely to be encountered in the mine operations are well within the NAAQM standards. Moreover, progressive afforestation programme activity over a period of

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 219

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

time in the core zone will create favourable conditions for fauna in the area and hence reversible impact is anticipated after presence of favourable condition.

PLANTATION

The progressive Greenbelt will be develop as per given below proposal: Table 11.1 Land: Progressive Greenbelt Development (Ha.) Afforestation S. Total Along Mine Along Mine- Year No Area Lease office & Amreng WasteDump -out Boundary Magazine Nallah Bench 1. Present 5.18 -- 5.18 --

2. th 20.00 5.18 10.00 4.82 5 Year th 3. 10 Year 40.00 5.18 10.00 12.62 5.00 12.20 End of 4. lease 65.18 5.18 10.00 12.62 10.00 27.38 period

A number of species will be planted suitable to this area of climate conditions like The afforested area will be encircled by a barbed wire fence for protection and regular watering thrice a week (except monsoon) and manuring as required will be done.

ALREADY PLANTED SPECIES PLANTS TO BE PLANTED Species Species Devdar Bheul Bheul Kachnar Kachnar Padag Padag Gariyal Gariyal Senna Senna Aanjir Ritha Aadu Shatut Ahkrot

Poular

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 220

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

11.2.5 EMP RELATED TO CONSTRUCTION ACTIVITIES:

This is an open cast mining on hill slopes. The overburden is minimum. The construction work involves fixing up boundary points of mine by erecting pillars; Preparation/Maintenance of haul road.

The haul road shall be maintained using local material from the lease area itself. The 6m x 6m benches shall ensure that sufficient area is available for all movement. The turns shall be protected with berms as well as vegetative measures on slopes shall be undertaken.

LAND RECLAMATION Land degradation is one of the major adverse impacts of opencast mining activities and any effort to control adverse impacts would be incomplete without appropriate land reclamation strategy.

POST MINING LAND USE:

In the Himalayan region degradation of scenic beauty caused by mining and waste disposal etc. is an important aspect of reclamation. Creation of green belts appears to be the only way of concealing the ugly scars.

It is proposed to reclaim the degraded area by vegetation so as to support forestry and improve upon the existing ecological status. The benches may be reclaimed by plantation of trees and local shrubs. The vegetation relevant to local use on benches may provide the economic upliftment for the poor people. Back filling of pits after recovery of limestone is not required because the mining of limestone is limited to modification of slope.

The first step in a successful reclamation programme is to decide the post reclamation land use. Being a small area, development of same by plantation with local flora that will welcome local fauna or economic activities

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 221

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

is the best option as per site conditions. Step agriculture as in hills can be also done, however, the land area is less.

LAND RECLAMATION STRATEGY: The area is rocky terrain. Mining was proposed from top to downward through the formation of benches. As the benches shall reach its ultimate pit limit plantation shall be undertaken over completed benches for its rehabilitation.

Describe the proposals to be implemented for reclamation and rehabilitation of mined-out land including the manner in which the actual site of the pit will be restored for future use. The proposals may be supported with yearly plans and sections depicting yearly progress in the activities for land restoration/ reclamation/rehabilitation, afforestation etc. called “Reclamation Plan”.

SOIL CONSERVATION MEASURES The area proposed for mining is rocky terrain having devoid of soil cover. Some quantities of soil shall be generated in the activities cracks & it shall be used in plantation. Therefore no proposal has been envisaged for its stacking & management.

STACKING OF TOP SOIL The mineral is exposed right on surface with no soil cover therefore removal top soil will be not required during mining. However, if soil will encounter during mining, will be immediately use for plantation in mine, rehabilitation / reclamation of worked out benches and bench floors. No stacking of soil has been done. In the future the soil shall be used simultaneously for rehabilitation / reclamation of worked out benches and bench floor.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 222

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

In the mined out area the reclamation operations will be resorted to simultaneously with mining activity. In the process whatever soil generated shall be utilized fully and not required to be stored.

STABILIZATION AND VEGETATION OF MINED AREAS

The mined out area is planned to be reclaimed simultaneously during mining operations. A part of the area will be kept under preparation for reclamation while previously prepared area will be reclaimed. The slope of the final benches will be provided with contour trenches to facilitate plantation.

The benches available for reclamation will be provided with bunds of about 1m height at the edge of each bench. The floors will then be covered with a layer of soil followed by plantation of grass and shrubs. In case of the small trenches (terraces), bunds of about 0.58-m height shall be provided at the edge of each terrace. Then a layer of soil shall spread over the terraces & the area made ready for planting bushes and shrubs.

The plantation of grasses and shrub initially will help in binding the loose soil be growing ground floor and also in raising the fertility of the planted area, thus creating favourable conditions for growing of trees. The roads constructed during mining operation to the benches shall be kept in good condition during the reclamation period till the mine is fully rehabilitated and abandoned. This will enable in transport of material required for plantation such as plant saplings, manure, water etc. by trucks. The water bodies provided as part of the reclamation plan shall act as water reservoirs.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 223

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

11.3 COST PROVISION FOR ENVIRONMENTAL MEASURES It is proposed to invest a capital cost of Rs. 28.0 Lac on environment mitigation measures with recurring amount of Rs.7.25 Lac per annum. The break-up of the investment is given below: Table 11.2 : COST PROVISION OF EMP S. Recurring cost / Particulars Capital cost No annum 1. Pollution Control 5.00 1.00 2. Pollution Monitoring 5.00 1.50 3. Plantation on Barren Area 10.00 3.00 4. Occupation Health 3.00 0.75 Miscellaneous (Fencing, 5. 5.00 1.00 Garland, Drains etc.) Total 28.00 7.25

11.4 SOCIO-ECONOMIC ENVIRONMENT / CORPORATE SOCIAL RESPONSIBILITY

This project operation will provide livelihood to the poorest section of the society. The overall impact of hill slope mining of stones on the social economics of the area shall be a very positive one, as not only it will generate employment opportunities for local population at mine site but also in associated activity.

It will also give a good boost to the general economy of the area. About 36 persons shall be employed at mine site. The project proponent has given undertaking and as corporate social responsibility agrees to provide free of cost stones for social projects in the area besides carrying out extensive tree plantation. The proposed mining activity is expected to provide stimulus to socio-economic activities in the region and thereby accelerate further development processes.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 224

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Corporate Social Responsibility (CSR)

The study area has been analyzed and surveyed. In the survey while interacting with the residents of the villages, it was mentioned by the villagers that illiteracy coupled with poverty is the main problem of society and girl child are worst affect. The Major problems identified in the study area were as follows. ● Acute poverty ● Scarcity of other occupations (except agriculture)

In the survey the people of the study area has expectations from the project such as Employment, Water, Education, Cleanliness, Program of lessee: The lessee proposed to do following social uplift men in mining : Table 11.3 : PROPOSED C.S.R. ACTIVITIES S. Detail Expenditure/ year No. ( in lac) 1. Provide clean drinking facility in Umrangshu 1,00,000 village 2. Construct village road of Umrangshu 3,50,000 3. Distribute free books & school uniform in School in 1,50,000 Umrangshu village 4. Construct washroom for girls at Umrangshu village. 2,00,000 5. Provide free medical health check-up camps & free 3,00,000 medicine distribution. 6. Give scholarship to bright students. 1,00,000 Total 12,00,000 CSR activity will be done per year as per requirement of villagers and suggested by them.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 225

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Table 11.4 : PROPOSED REMEDIATION PLAN AND NATURAL AND COMMUNITY RESOURCE AUGMENTATION PLAN (NCRAP) Attributes Scope of environmental EMP Cost Benefits earned Description Total cost (Rs.) AP Water requirement per day Lease area degraded during 378,432/- for sprinkling of water to violation period: 1.752 ha. (17520 curb fugitive emission in m2) KLD (0.1 L/m2) Water requirement: 0.1 L/m2 Cost of water: Rs. 60/KL No. of days: 300 days/year Total cost: 17520 x 0.1/1000 x 60 x 300= 31536 x 12 (no of violation year)= Rs. 378432/- As per supreme court order year of counting penalty is year 2001 onward to year 2011-12(till Jan.2012). Transport: Cost of water Road length; 2.24Km (6720 m2) 145,152/- sprinkling on kutcha road Water requirement: 0.1 L/m2 outside the mine lease up Cost of water: Rs. 60/KL to nearest pakka road water No. of days:300 days/year to curb fugitive emission in Total cost: 6720 x 0.1/1000 x 60 x KLD (0.1 L/m2) 300 = 12096 x 12 (no of violation year) = 145,152/- Rs. WP Major water pollution 1. No water pollution issues 0.00 envisioned: envisioned as limestone is inert 1. Ground water table material and ground Water intersection if any. intersection was not observed. 2. Runoff water outside the Hence, damage pertaining to this lease and estimated damage aspect is considered as zero. caused considering period of 2. Water channel along approach violation in Rs. per day. road & garland drain with sump will be maintained and cost cover under EMP funds. SHW A. When there is an As per approved mining plan up to 8 583,200/- overburden Quantity of Over m thickness of Shale & Sand stone as Burden will be shift to Overburden will be remove in proposed dump site within advance to mine limestone mineral. lease area. Total O/B removed from excavated O/B in MT X 18 Rs./MT area during violation period is 0.120 (O.B. handling charges) x 2 hect. only. As total O/B handling (Lifting and shifting) from year 2001-02 to year 2011- 12(till Jan.2012) is approx. 7200 Cum. Therefore total O/B generated 7200x2.25(BD) =16200 Mt. Total cost = 16200x18x2 = 583,200 Rs.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 226

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

B. No mining waste, entire No mining waste issues. 0.0 limestone will be dispatched to Steel & Cement industries.

NV Existence of house Blasting has been carried out in the 0.0 properties / Env. Entities mine. There is no human settlement within 500m of blasting site or entities within 500mtr radius. and if damaged due to Nearest village New Umrangshu is blasting. at a distance of 2.50 km. from lease area.  No. of such properties No damage on any private or public 0.0 properties has been observed or no  Cost of reconstruction of such Complaint has been received. properties Hence, cost is considered as zero. GB Green belt developed in 12 Lease area: 200 ha. 714,000/- hect. as per approved mining Total area to be planted 12 hect. till plan till Year 2012. So far Jan.2012 as per approved mining only 5.38 hect. area was plan. planted and developed under green belt. Planted area till Jan.2012 =50800 m2

Area to be planted = 69,200m2 Green belt in Presume : Total trees require = 7000 No.

Cost of sapling including 1000 plant in per 10000m2 plantation cost: Rs. 30/plant land. Total cost: Cost of single plant (plant 7000 x 30 = 210,000 /-Rs.(A) cost + maintenance) as

nurturing required for 3 Salary of caretaker : Rs. year. 5,000/month x 12=60,000 /-Rs.

No of watering days: 180 No. Watering cost : 10 lit/plant/day @ Rs. 60/KL Plantation = 1000 tree per year Water requirement = 1000x10x180 = 1800000 litrs Water Cost = 1800000/1000 x60 = 108,000 /- Rs.

Total Maintenance cost: =108000+60000=168000x3 (Nurturing is required for 3 yr. only) =504,000/- Rs.(B) Total cost of green belt(A+B) 210,000+504,000 =714,000 /-Rs. HG No major HG issues No ground water intersection was 0.00 Rs. envisioned, considering no observed. Hence, no damage cost is ground water interception. Calculated. RH/OHS Health expenditure No of No. of workers - 36 workers x Rs. 1000 i.e. 36 x 1000 = 36,000/-Rs

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 227

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

PPE expenditure 36x300 = 10,800/-Rs No. of workers x Rs 300 Total expenditure for health 36000+10800 =46800/- 561,600/- & safety for workers during 46800 x 12 yrs = 561600/- Rs. violation years(12 ) CER 2.5% of mineral value Total production since 2001-02 to 1552932/- till Jan.2012 is 177477.90 tonnes Average sale value of mineral Rs. 350 & CER is 2.5% of mineral value i.e. Rs. 8.75. Therefore, CER = 177477.90x8.75 = 1552931.62/- Rs (say 1552932/-Rs) SC Cost of preservation, Lease area degraded during 31950/- handling and reuse of Top violation period: 6.39 ha. soil: (Cost of soil reservation Soil conservation cost = 6.39x 5000 is assumed to be Rs. = 31950/- Rs 5,000/Ha.) Total assessed Env. Damage Cost (Lakh) 3,967,266/- Environment Total assessed Env. Damage 3967266/62117265x100 06.38% tal damage Cost in Rs./Value of mineral cost in % of in Rs. *100 Mineral value

IMPLEMENATION SCHEDULE OF PLANNED ACTIVITIIES & RELATED BANK GAURANTEE :

The proposal activities under the remediation /EMP measures suggested /recommended, natural and community resource augmentation plan as well as public hearing aspects will be implemented in a phased manner. It may be noted that the lessee will also give a Bank guarantee equivalent to the amount of remediation plan, natural and community resource augmentation plan to SPCB which could be returned on completion of the above state plan.

The above measures will be implemented in a phase manner only after obtaining EC from MOEF, New Delhi and CTO from SPCB, The lessee will not repeat such violation in future at any cost and hence the Environment Clearance may be granted.

======*********======

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 228

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

CHAPTER - XII

CONSULTANTS ENGAGED www.udrmintech.com

Realizing the need for multi disciplinary and pragmatic 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/UDAI/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 & NABL accredited lab for Environment parameters and Metallic & Non Metallic minerals. 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.

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 Pardesh, Assam,U.P, Maharastra, Punjab, Haryana, Meghalaya, Manipur, Arunachal Pradesh & M.P. and more than 995 them have already approved from IBM-Udaipur / Dehradun / Ajmer / Nagpur / Kolkatta/ Guwahati, Gandhinagar & Jabalpur, Deptt. of Mines & Geology- Rajasthan, Deptt. of Geology & Mining –Gandhinagar (Gujarat), Deptt. Of Geology & Mining-Bhopal (MP). Deptt. Of Mines & Geology-Maharashtra.

UMTPL has conducted Mine Surveys, Geological Mapping, Geological reserves as per UNFC, Mine Planning, Environment monitoring,

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 229

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

EIA & EMP Report for various minerals in different states of India as well as Abroad.

UMTPL has prepared during year 2000-01 to 2019-20, more than 600 EIA/EMP report of various mines (Cat.-A&B) for MOEF, New Delhi , SEIAA –Jaipur , SEIAA-Gandhinagar, SEIAA-Shimla, SEIAA-Mumbai, SEIAA- Lucknow & SEIAA- Bhopal and 580 of them have already secured approval & Environmental clearance. The 250 EMP in cluster approved from Dist. Level Environment Committee in Rajasthan as per RMMCR -2012.

The UMTPL has also prepared during year 2012-13 to 18-19, more than 1000 EC cases of minor mineral mines B2- Category for SEIAA-Jaipur, SEIAA- Gandhinagar, SEIAA-Bhopal, SEIAA-SHIMLA & SEIAA- Lucknow.

Details of Expert in-house as well as empanel with EIA coordinator who involved in field works and preparation of EIA & EMP report are given below in tabular form:

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 230

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 231

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 232

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 233

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

QUESTIONNAIRE

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 234

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

PROFORMA FOR ENVIRONMENTAL APPRAISAL OF MINING PROJECTS

(MINING SECTOR PROJECTS)

Note 1 : All information to be given in the form of Annex/s should be properly numbered and form part of reply to this proforma. Note 2 : Please enter √ in appropriate box where answer is Yes / No Note 3 : No abbreviation to be used - Not available or Not applicable should be clearly mentioned.

Note 4 : Core zone is the mining lease area. Buffer zone in case of ML area up to 25 ha.is to be considered as 5 km all around the periphery of the core zone and for ML area above 25 ha. an area 10 km all around the periphery of the core zone.

Note 5 : Adopt Scoping process in carrying out EIA study.

Note 6 : Please indicate source of data.

1. General Information (a) Name of the project : New Umrangshu Limestone Mine (i) Name of the proponent : M/s Assam Mineral Development Corporation Ltd Mailing Address : Khanij Bhawan, Sahjahan Market Near Ganesh Mandir. R.P. Road, Dispur Guwahati, Assam E-mail : [email protected]

Telephone : 91-361-2384078 (Off.)

(b) Objective of the project : Production of Limestone (c) Location of mine (s)

Village(s) Taluka District State New Umrangshu Umrangshu North Cachar hills Assam

(d) Does the proposal relate to

(i) New mine Yes √ No

(ii) Expansion Yes No √

 Increase in ML area Yes No √

 Increase in annual √ production Yes No

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 235

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(iii) Renewal of ML Yes √ No No

(iv) Modernization Yes No √

(e) Site Information

(i) Geographical Location

 Latitude 25°31’17.27” :: 25°32’40.56” N 21°24'41"N  Longitude 92°47’54.36” :: 92°47’26.39” E.  Survey of India Topo sheet number 83C/NE & 83C/14

 Elevation above Mean Sea Level 445 mRL – 315 mRL

 Total mining lease area (in ha.) 200.0 Hect.

(ii) Dominant nature of terrain

 Flat Yes No √

 Undulated Yes √ No

Hilly Yes √ No 

2. Land usage of the mining lease area (in ha.)

(a) Agricultural NIL

(b) Forest NIL

(c) Waste land 200.0 ha

(d) Grazing NIL

(e) Surface water bodies NIL

(f) Others (Specify) NIL

Total 200.0 ha.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 236

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

3. Indicate the seismic zone in which ML area falls. In case of zone IV & V, details of earth quakes in last 10 years. – Seismic Zone V

(a) Severity (Richter scale) Area falls in Seismic Zone V.

(b) Impact i.e. Damage to  Life Yes No √

 Property Yes No √

 Existing Mine Yes No √

The last two earthquakes occurred on 12th June 1897 and 15th August 1950. No earthquakes occurred in last 10 years.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 237

4. Break-up of mining lease area (in ha.) as per approved conceptual plan:

Mining Lease Area Total Area acquired Area to be acquired Purpose Government Private Government Private Government Private Forest Others Agri. Others Forest Others Agri. Others Forest Others Agri. Others 1. Area to be excavated -- 90.72 -- -- 90.72 -- 90.72 ------2. Storage for top soil ------3. Overburden / Dumps -- 10.00 -- -- 10.00 -- 10.00 ------4. Mineral storage ------5. Infrastructure(workshop, -- 2.5 -- -- 2.5 -- 2.5 ------administrative building) 6. Road 1.50 1.50 1.50 7. Railways ------8. Green Belt -- 27.800 -- -- 27.800 -- 27.800 ------9. Tailings pond ------10. ETP 11. Coal handling plant / ------mineral separation plant 12. Township Area 13. others (specify) -- 67.48 -- -- 67.48 -- 67.48 ------200.000 -- -- 200.000 -- 200.000 ------TOTAL

* At the end of lease period total 65.180 ha. area will be planted which includes 5.180 hect area along lease boundary/ barren land, 10.0 hect around office and magazine site, 12.62 hect on either side of Amreng nallah, 27.38 hect on mined out benches and 10.0 ha. on dump area. About 56.820 hect area will be used as a water reservoir.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 238

5. Township (outside mining lease) – Not Applicable

(a) Total area (in ha) --

(b) No. of dwelling units --

(c) Distance from mine site --

6. Distance of water bodies (in km)

Distance River Bank * Other Water bodies * from Sea / creek / lake / nalla etc. (specify) Mining lease boundary Kopili River – 7.0 km in NW, Amrang Nallah passing Langlai River – 8.0 km in SE, through the mining lease Langyen River – 3.5 km E, area. Mongla River – 8.1 km in NE, Langklam Nadi-7.5Km in S. Umrang Dam – 6.7 km in Bangphiri Nadi-8.0 Km in SSE SW. Ancillary facilities No No [* From highest flood line / high tide line]

7. For projects falling within the Coastal Regulation Zone (CRZ)

Whether the mineral to be mined is of rare nature and not available outside CRZ? Yes No 

if yes, annex a scaled location map showing low tide line (LTL), high tide line (HTL) duly demarcated by one of the authorized agencies* [ *Director, Space Application Centre, Ahmedabad: Centre for Earth Sciences Studies, Thiruvananthapuram: Institute of Remote Sensing, Anna University, Chennai: Institute of Wetland Management

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 239

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

& Ecological Designs, KolKata: Naval Hydrographers’s Office, Dehradun: National Institute of Oceanography, Panjim, Goa: and National Institute of Ocean Technology, Chennai], boundary of mining lease area, distance of ML area from LTL and HTL CRZ boundary and CRZ classification of the project area as per the approved Coastal Zone Management Plan, and settlements, sand dunes, mangroves, forest land/patches, turtles breeding and nesting sites etc., if any, in the project area.

8. Indicate aerial distance from the periphery of core zone / area from the periphery of the buffer zone to the boundary of following (up to 10 km):

S. Areas Name Aerial distance from No. (in km.) Core Buffer *Zone *Zone 1. National Park / Sanctuary ------2. Biosphere Reserve / Tiger -- -- Reserve / Elephant Reserve / any other Reserve 3. Forest (RF / PF / unclassified) Krungming RF 2.0 Km -- towards W 4. Habitat for migratory birds ------5. Corridor for animals of schedule I & II of List of fauna is given in -- -- the Wildlife (Protection) Act, chapter – III. 1972 6. Archaeological sites * Notified ------* Others 7. Defense Installation ------8. Industries / Thermal Power ------

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 240

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

Plants 9. Other Mines ------10. Airport Borjhar(Guwahati) 264 km 254 Km 11. Railway Lines Lanka 62 km 52 Km 12. National / State Highways NH -27 and SH 7 1.7 km -- [* Buffer zone in case of ML area up to below25 ha. is to be considered as 5 km all around the periphery of the core zone and for ML area above 25 ha. an area 10 km all around the periphery of the core zone].

9. Description of flora & fauna separately in the core and buffer zones.* [* Consult the Wildlife (Protection) Act, 1972 as amended subsequently and list species with (1) Common name (2) Scientific name and (3) under which schedule of the Wildlife (Protection) Act the identified species fall. Get the list authenticated by an Expert in the field / credible scientific institute / University / Chief Wildlife Warden Office. Information to be based on field survey.]

Details given in Chapter- III on pg. no. 95.

10. Details of mineral reserves (as per approved Mining Plan) Quantity (in million tonnes)

(a) Proved - 84.354 (b) Probable

(c) Indicated -

(d) Inferred 201.566

(e) Mineable reserves 84.35

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 241

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

11. Major geological formation / disturbances in the mining lease area

(a) Geological maps submitted Yes  No

(b) Geological sections submitted Yes  No

(c) Contour map submitted Yes  No

(d) Whether the presence, if any, noted of

(i) Faults Yes No  (ii) Dykes Yes No  (iii) Shear Zone Yes No  [

(iv) Folds Yes No 

(v) Other weak zones Yes No 

(e) Source of data (Indicate) By 1) SurveyBBBB & Field works 2) Approved Mining plan

12. Production of mineral(s) and life of mine 4, 44,000 (a) Rated capacity of mine mineral wise (Tonnes / annum) (b) Life of mine at proposed capacity (Years) 188

(c) Lease period (Years) 50 (d) Date of expiry of lease (D /M /Y) -- (e) Indicate in case of existing mines (i) Date of opening of mine --

(ii) Production in the last 5 years Authenticated production from year…….to year……. is enclosed as Annexure – XII.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 242

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

in million tonnes. (iii) Projected production for the next years from year I to year V in million tonnes.

Year Waste Limestone (ROM) Stripping Ratio Cu.m. Cu.m. Tonnes Waste: Mineral Cu.m.: Cu.m. First 237,152 127,282 330,932 0.86:1

Second 215,450 145,260 377,675 0.48:1

Third 262,510 162,600 422,760 0.61:1

Fourth 277,402 171,012 444,631 0.62:1

Fifth 266,470 170,990 444,574 0.56:1

Total 1,258,984 777,144 2,020,572

(iv) Whether mining was suspended after Yes No  opening of the mine?

If yes, details there of including last production figure and reason for the same. -

(f) Whether plans & sections provided? Yes  No No

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 243

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

13. Type and method of mining operations

TYPE METHOD Opencast Manual 

Underground Semi- mechanized Both Mechanized 

14. Details of ancillary operations for mineral processing

S. Machinery Units Total HP Capacity No. 1. L & T- Komatsu PC 200-6 Excavator 2 128 0.93 m3 2. Rock Drill Wagon, Atlas Copco ICM 260 2 465 3. Truck, Tata Engineering LPK2516 6 2700 14 m3 4. Komatsu Dozer – D 65 E-8 01 165 5 Water Tanker, 9 KL capacity 01 260 9 KL 6. Road Roller 01 82.5 7. Compressor CM-341 01 XAH210

15. Mine details

(a) Opencast mine

(i) Stripping ratio (mineral in tonnes to over burden in 0.86:1 m3)

(ii) Ultimate working depth (in m bgl) 304 mRL (11 mbgl)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 244

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(iii) Indicate present working depth in case of existing mine (in m bgl) -

(iv) Thickness of top soil (in m.)

 Minimum 0.15  Maximum 0.30  Average 0.20 (v) Thickness of overburden (in m.) 2  Minimum  Maximum 8

 Average 5

(vi) Mining Plan Height and width of the bench in Height – 6 m, Width – overburden / waste. 6-8 m

Height – 6 m, Width –  Height & width of the bench in ore body / coal seam. 6-8 m

 Proposed inclination / slope of the sides of the Individual bench - opencast mine (separately for overburden, coal / 80° ore and overall slope of the pit sides) both while Final pit slope – 45o operating the mine as well as at the time of closure of the mine. Whether transverse sections across the Yes √ No opencast mine at the end of fifth year and at the end of the life of the mine have been submitted?

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 245

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(vii) Type of blasting, if any, to be adopted Free face drilled

(b) Underground mine - Not Applicable

(i) Seam / Ore body Min. Depth (m) Max. Depth (m) Avg. thickness (m)

- - -

Rate of dip Direction of dip in degree - -

(ii) Mode of entry into the mine – NA

 Shaft -  Adit -

 Incline -

(iii) Details of machinery – NA

On surface At Face For transportation Others (iv) Method of stopping (metalliferrous mines) – NA

-  Open

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 246

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 Filled -

-  Shrinkage

-  Caving

-  Combination of above

 Others (Specify)-Sub Level Stopping -

(v) Extraction method –N/A

[ -  Caving

-  Stowing

 Partial extraction -

(vi) Subsidence - N/A

-  Predicted max. subsidence (in m)  Max. value of tensile strain (in mm/m) -

 Max. slope change (in mm/m) -

 Whether identified possible subsidence area(s) superimposed on Surface Yes - No - Plan has been submitted?

 Major impacts on surface features

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 247

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

like natural drainage pattern, houses, buildings, water bodies, roads, forest, etc.

 Salient features of subsidence management (monitoring and control).

16. Surface drainage pattern at mine site (Fig- 3.2) (a) Whether the pre-mining surface drainage plan Yes √ No submitted?

(b) Do you propose any modification/diversion Yes No √ in the existing natural drainage pattern at any stage? If yes, when. Provide location map indicating contours, dimensions of water body to be diverted, direction of flow of water and proposed route / changes, if any i.e. realignment of river / nallahs / any other water body falling within core zone and its impact.

17. Embankment and / or weir construction – N/A

(a) Do you propose, at any stage, construction of

(i) Embankment for protection against flood? Yes No

(ii) Weir for water storage for the mine? Yes No

(b) If so, provide details thereof.

(c ) Impact of embankment on HFL and settlement around.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 248

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(d) Impact of weir on downstream users of water.

18. Vehicular traffic density (outside the ML area) Type of vehicle No. of vehicles per day

(a) Existing LMV/HMV/2/3 338 wheelers

375 (b) After the proposed activity LMV/HMV/2/3 wheelers

[ (c) Whether the existing road Yes No  network is adequate? If no, provide details of alternative proposal? 19. Loading, transportation and unloading of mineral and waste rocks on surface:

(a) Manual Yes  No

(b) Tubs, mine cars, etc. Yes No 

(c) Scraper, shovels, dumpers / trucks. Yes No ]

(d) Conveyors (belt, chain, etc.) Yes  No

(e) Others (specify). -

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 249

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

20. Mineral (s) transportation outside the ML area Qty. (in TPD) Percentage (%) Length (in km)

(a) Road 1480 100

(b) Rail - -

(c) Conveyors - - -

(d) Rope way - - -

(e) Water ways - -

(f) Pipeline - - -

- - (g) Others (Specify)

Total 1480 100

21. Baseline Meteorological and Air Quality data

(a) Micro-meteorological data [Continuous monitoring through autographic instrument for one full season other than monsoon]

(i) Wind rose pattern for one full season (16 points of compass i.e. N, NNE, NE, ---) based on 24-hourly data. For coastal area also furnish day-time and night time data.

 Day time -Day time wind direction max. towards NE to SW

 Night time

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 250

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 24 – hours period

Temperature Relative Humidity Wind Speed (Km./Hr.) Wind Month (°C) (%) Direction 8.30 17.30 Max Min Max. Min. Max. Min. Max. Min. Dec., 17 29.4 8.4 100 60 07 02 09 02 NE

Jan., 18 30.5 7.4 100 48 11 02 05 02 E

Feb., 18 33.7 9.4 100 44 07 02 06 02 NE

24-hours rainfall should be reported from 08:30 hrs. IST of previous day to 08:30 hrs. IST of the day. * Rainy day is considered when 24 hrs. rainfall is  2.5 mm. ** Visual observations of cloud cover should be recorded four times a day at regular intervals.

(ii)Site specific monitored data

(iii) Indicate name and distance of the nearest IMD meteorological station from which climatological data have been obtained for reporting in the EIA report, if any. (Silchar).

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 251

(b) Ambient air quality data* (PM10, PM2.5, SO2, and NOx)

[*Monitoring should be carried out covering one full season except monsoon – same season as in 21 (a) (i)] [*Frequency of sampling: Sampling to be done twice a week for the entire season 24 hourly for PM10& PM2.5. For gaseous pollutants 24- hourly data is given irrespective of the sampling period. ]

(i) Season and period for which monitoring has been carried out – summer season i.e. March to May 2013 (ii) No. of samples collected at each monitoring station – 24

Name of monitoring equipment used PM10 PM2.5 SO2 NOx Respirable dust Respirable dust Gasses Sampler Gasses Sampler Sampler Sampler Equipment sensitivity Permissible AAQ standard (CPCB) R 100 60 80 80 in μg/m3 100 60 80 80 I S 100 60 80 80 Monitoring No. of Category Min. Max. 98% Min. Max. 98% Min. Max. 98% Min. Max. 98% Location Samples * tile tile tile tile Drawn (R, I, S)

Core zone 24 Mining 64.13 81.98 80.34 21.25 32.14 31.49 3.30 6.95 6.81 7.12 10.70 10.4 8 Buffer zone 500mtr D/W 24 R 62.55 80.83 79.21 20.71 31.46 30.83 3.41 7.30 7.15 4.79 10.11 9.90 dirrection New 24 R 63.18 77.20 75.65 19.18 29.77 29.17 3.14 6.89 6.75 4.24 8.90 8.76 Umrangshu Village Near Leng 24 R 55.81 71.43 70.00 15.84 30.52 29.90 2.99 6.13 6.00 3.99 7.00 6.86 Cheruoi Dithur Village 24 R 56.93 69.97 68.57 15.71 29.99 29.39 2.70 5.95 5.83 3.78 6.79 6.65 *R = Residential; I = Industrial; S = Sensitive **Pb for mineral specific sites only. # Annex a location map indicating location of AAQ stations, their direction and distance with respect to project site. (Fig – 3.4 in EIA/EMP Report)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 252

22. Stack and emission details, if any* - Not Applicable

Exhaust / Flue gas Sl. Process / unit of Height of Internal Flue gas Emission rate (kg/hr) Heat No. operation (e.g. stack (m) top dia. exit emission DG Set, Boiler) (m) velocity rate from Temp Density Specific Volumetric (m/sec) SPM SO2 NOx CO top of stack OC Heat flow rate (K.cal/hr) (m3/hr.)

23. Details of fugitive emissions during mining operations* -Detail given in EIA report. 24. Air Quality Impact Prediction (AQIP)*: Detail given in EIA report. (a) Details of model(s) used for AQIP including grid size, terrain features, and input meteorological data (b) Maximum incremental GLC values of pollutants based on prediction exercise

S. No. Pollutants Incremental Value Ambient Air Quality Resultant Air Quality

1. PM10 0.1 81.98 82.08

2**. SO2 ------

3**. NOX ------

[* Question Number 22, 23 & 24 need not be filled-in for mines having ML area of 25 ha. or less.] [**Information on item no. 2 & 3 to be provided in cases with captive power generation of 500 KVA and above]

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 253

25. Water requirement (m3/day)

Purpose Avg. Demand Peak Demand

A. Mine site 1. Mine operation Nil Nil 2. Land reclamation Nil Nil 3. Dust suppression 5.5 5.5 4. Drinking 2.0 2. 0 5. Green Belt 4.5 4.5 6. Beneficiation Nil Nil 7. Washeries Nil Nil Nil Nil 8. Fire Service Nil Nil 9. Others (specify)

B. Township 1. Green Belt Nil Nil 2. Domestic Nil Nil 3. Other (specify) Nil Nil

Total 12.0 12.0

26. Source of water supply*

S. No. Source m3/day

1 River (name) Nil

2 Ground water Nil

3 Mine water (sump / pit) Nil Rain water /Hand Pump/Well 4 12.0

[*Annex a copy of sanction letter / permission from the concerned authority (Central Ground Water Authority in case of ground water abstraction is from notified area / State Ground Water Board in case of non-notified area / State Irrigation Department for surface water pumping) for drawing water.]

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 254

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

27. Lean season flow in case of pumping from river / nalla (cumecs)

28. Ground water potential of the study area NOT APPLICABLE

28.1. Ground water availability (Source – State Ground Water Deptt.) (a) Range of water table (m bgl) (i) Pre-monsoon (April/May)  Core Zone 25 m bgl

 Buffer zone 25 m bgl

(ii) Post-monsoon (November)  Core Zone 20 m bgl

 Buffer zone 20 m bgl

(b) Total annual replenishable recharge (million m3/ year)  By ground water table fluctuation method 135860 ham

 By rainfall infiltration factor method 100067 ham

(c) Annual draft excluding estimated draft through Nil mine discharge (million m3/ year)

(d) Estimated draft through mine discharge (million m3/ year) Nil (e) Net annual ground water availability (million m3/ year) Nil (f) Stage of ground water development in %

21% 28.2. Water demand - Competing users of the water source

Additional proposed Total S. Usage Present Consumption as per local plan (m3/day) No. (m3/day) (m3/day) Surface Ground Surface Ground Surface Ground 1 Domestic ------2 Plantation -- -- 4.5 -- 4.5 -- 3 Industry ------4 Mining ------5 Dust -- -- 5.5 -- 5.5 -- Suppression 6 Sanitation & -- -- 2.0 -- 2.0 -- Drinking Total -- -- 12.0 -- 12.0 --

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 255

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

29. Water quality* (a) Annex physico-chemical analysis of water at intake point** – Water quality analysis report is attached as Annexure no. – XIII.

(b) In case of existing mine, annex report on quality of water discharge – Not Applicable i.e. complete physico - chemical analysis**

[*For non-discharging mines at least four ground water samples to be taken preferably from downstream direction of the mine in pre-monsoon and post-monsoon periods and analysed. For discharging mines six samples are to be analysed]

**All parameters as per BIS 10500. Indicate name of Methodology, Equipment used for analysis, and Detection Level (DL) for each parameter. *** Wherever any analytical parameter is below detection level, “BDL” (Below Detection Level) should be written instead of ‘NIL’. 30. Impact on ground water regime / stream / lake / springs due to mine dewatering *- Not Applicable (a) Radius of influence (in m) [To be estimated based on analysis of pumping test data and application of empirical formula]

(b) Whether saline water ingress will take place? Yes No (applicable to coastal areas)

(c) Impact on stream / lake / springs

[* Provide a comprehensive hydro-geological assessment report if the average mine dewatering is more than 100 m3/day and or going below water table in non-monsoon period. The report should be based on preferably latest one year pre-monsoon and post-monsoon baseline data covering information on ground water situation, aquifer characteristics, water level conditions (April – May and November), estimate of ground water resources, predicted impact of the project on ground water regime and detailed remedial / conservation measures such as artificial recharge of ground water etc. The report should be based on actual field inventory out of existing wells, at least 30 observation wells in the buffer zone with supplementary information from secondary sources (mention name). For estimation** of ground water resource (refer question no. 28 above) be designated study area of the buffer zone may be sub-divided into command and non-command areas, watershed-wise (in case of hard rock / consolidated formations) / block-wise / mandal-wise in case of alluvial / unconsolidated formations)]

[**For estimating ground water resources in the area follow the Ground Water Estimation Committee recommendations of 1997]

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 256

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

31. Waste Water Management - Not Applicable Mine - (a) Daily average discharge (m3/day) from different sources (i) Mine water discharge during

--  Lean period

 Monsoon period

(ii) Workshop (iii) Domestic (mine site)

(iv) Beneficiation / Washeries

(v) Coal Handling Plant

(vi) Tailings pond

(vii) Others (Specify)

Total

(b) Waste water treatment plant; flow sheet for treatment process attached. Yes No 

(c) Quantity of water recycled / reused / - NA to be recycled in (i) Percentage -

(ii) m3/day -

(d) Point of final discharge - NA

Final Point Quantity discharged (in m3/day) 1. Surface

(i) Agricultural land -- (ii) Waste land

(iii) Forest land

(iv) Green belt 2. River / nallah -- 3. Lake --

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 257

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

4. Sea -- 5. Others (specify) Dust suppression -- Total --

(e) Users of discharge water - (i) Human Yes No - (ii) Livestock Yes No

(iii) Irrigation Yes No - (iv) Industry Yes No -

(v) Others (specify)

(f) Details of the river / nalla, if final effluent is / will be discharged (cumecs) - N/A

(i) Average flow rate

(ii) Lean season flow rate

(iii) Aquatic life

(iv) Analysis of river water 100 meters Yes No upstream and 100 meters downstream of discharge point submitted.

Township - Not Applicable

(a) Waste water generation from township (m3/day)

(b) Are you planning to provide sewage Yes No treatment plant?

(c) Usage of treated water

32. Attach water balance statement in the form of a flow diagram indicating source (s), consumption (Section-wise) and output.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 258

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

WATER BALANCE DIAGRAM

Dug well/ Tube well outside the lease area

10.0 KLD

Dust supper. Drinking Plantation 5.0 KLD 2.0 KLD 3.0 KLD

No out flow Soak Pit No Outflow

33. Ambient noise level leq dB (A)

TEST RESULT Equivalent Noise Equivalent Noise S. Station Location Level dB(A) Level dB(A) No. Code (6.00 AM to 10.00 PM) (10.00 PM to 6.00 AM) 6. N1 Near Project Site 56.3 43.0 500m D/W from 7. N2 53.9 40.7 Project New Umrangshu 8. N3 50.7 44.2 Village Near Leng 9. N4 52.6 39.5 Cheruoi 10. N5 Dithur Village 49.0 38.2

34. Solid Waste

(a) Top soil and Solid waste quantity and quality

Name Composition Quantity Method of disposal (Lump/fines/slurry/ (m3/month) Sludge/others) The waste shall be dumped in the Mining activity* south – eastern corner of the lease

area. Terraces of 10 height shall be a. Top Soil Nil 481800 Cum of formed for stability of the dump. b. Over burden/side Shale and waste generate in

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 259

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

burden sandstone next 5 years c. Others (specify) Nil Effluent Treatment Nil Nil Plant (sludge) Total Nil 481800 Cum Nil [* Annex layout plan indicating the dump sites.] Layout plan is attached as plate no. 4. (b) (i) Does waste (s) contain any hazardous/toxic substance/

radioactive materials or Yes No √ heavy metals? activ ity* [ (ii) If yes, whether details and Yes No a. √ [ precautionary measures Topa. provided? SoilTop [ Soil b. [ Overb. (c) Recovery and recycling possibilities. - No burdOver en burd (d) Possible user(s) of the solid waste. [ en c. [ (e) (i) Is the solid waste suitable for Othec. backfilling? Yes No rs √Othe (spec√actirs ify)(spec (ii) If yes, when do you propose vity* [ ify) to start backfilling. a. Top (in millionSoil m 3) Solid waste (s) Already To be generated % of A &[ B to be accumulated (B) backfilledb. (A) A Over B Over burden ------burd -- en Others (specify) ------[ -- c. Othe rs (spec ify) Land reclamation Plan –

(f) In case waste is to be dumped on the ground, indicate

(i) Associated environmental problems - None

(ii) Number & type of waste dumps

 No. of external dumps One

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone50 m Area 260

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

 Max. projected height of dumps (in m)

 No. of terraces and height of each stage 1, 10m

 Overall slope of the dump (degree) 45

 Proposed reclamation measures: Rain water storage &Plantations

(iii) Section of the waste dump in relation to the adjacent ground profile attached. Yes √ No 35. Fuel / Energy requirements* - [*To be furnished for mines having ML area more than 25 ha. or captive power generation of 500KVA and above]

(a) Total power requirement - No electric power for mine (in MW)

S. No. Mine Site Township Others (specify) Total 1 Present - - - - 2 Proposed / - - - - additional Total - - - -

(b) Source of power (in MW)

S. No. SEB/Grid* Captive power plant DG Sets

1 Present - -

2 Proposed

Total

[* Annex a copy of the sanction letter from the concerned authority]

(c) Details of fuels S.No. Fuel Daily Consumption Calorific % Ash % Sulphur lits/day value Existing Proposed (Kcals/kg) 1 HSD 1700 ltr 1000 0.01 0.05

2 LSHS Nil 3 Other (specify)

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 261

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

36. Storage of inflammable / explosive materials*

S. No. Name Number of Consumption Maximum Quantity at Storages any point of time 1 Fuels - 1700 lit/day - 2 Explosives 1 About 400 400 kg kg/day

37. Human Settlement

Core Zone Buffer Zone Population* Nil 12869 No. of villages Nil 16 Number of households Nil 2865 village-wise [*As per 2011 census record or actual survey] 38. Rehabilitation & Resettlement (R&R) Plan* - Not Applicable [*Provide a comprehensive rehabilitation plan, if more than 1000 people are likely to be displaced, other-wise a summary plan]

(a) Villages falling within the study area

Villages Number Name Core zone Nil Nil

500 m from the blasting site (s) Nil Nil

Buffer zone 18 Map attached.

Township site Nil Nil

(b) Details of village(s) in the core zone - Nil S. Village name Population* Average Annual No. Tribal Others Income 1. Nil ------

2. Nil ------

3. Nil ------

[*As per 2001 census / actual survey]

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 262

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(c) Population to be displaced and / or Land oustees - Nil Name of village(s) falling within Number of oustees Land (only) Homestead Land and Homestead (only) (both) Mining Lease Nil Nil Nil 1. 2. . Township Site Nil Nil Nil 1. 2.

(d) Whether R&R package has been finalised? – Not Applicable If yes, salient features of R&R plan for oustees.

(i) Site details where the people are proposed to be resettled & facilities existing / to be created.

(ii) Funds earmarked for compensation package.

(iii) Agency /Authority responsible for their resettlement.

(iv) Time of commencement of resettlement of Project Affected People (PAP).

(v) Period by which resettlement of PAP will be over.

39. Lease -wise plantation details

(a) Lease area (in ha.)–200.0 hect. Existing mine New mine

(i) Area broken up 16.898 -

(ii) To be broken up (Cumulative) 132.52 -

(iii) Area not to be broken-up 67.48 -

(b) Township area (in ha.) Nil

(c) Area afforested and proposed (in ha.) 31.61 hact.

Peripheral Dumps Roads Township Others

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 263

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(i) *Existing 5.18 Nil Nil Nil Nil

(ii) *Proposed 5.18 10.0 -- Nil 50.00 (d) No. and type of trees planted and proposed

(i) Existing – 5.18 ha.  When plantation was started? Month / Year After getting EC

(ii) Proposed 2000 plants / ha.

S. No. Common Name Botonical Name family 1 Safed siris Albizia procera Leguminosae 2 Sal Shorea robusta Dipterocarpaceae 3 Java Pulm Syzygium cumini Myrataceae 4 Indian Phyllanthus Phyllanthaceae gooseberry emblica 5 Kako Dendrocalamus Poaceae hamiltonii 6 Neolamarckia Kadam Rubiaceae cadamba 7 Indian rosewood Dalbergia sissoo Fabaceae

40. Environmental health and safety

(a) What major health and safety hazards are anticipated? – Inhalation of dust, fall of rocks from side, noise from rock breaker.

(b) What provisions have been made / proposed to be made to conform to health and safety requirements? – Dust mask, noise- ear plugs, mufflers, safety shoes, helmets, hand gloves & all medical facilities provided & medical camp conduct periodically.

(c) In case of an existing mine- (i) Comprehensive report on health status of the workers as under the Mines Act annexed. Yes No

(ii) Mineralogical composition of RPM (dust)  Free silica – Attached as Annexure no. XI  Chromium* (Total as well as Hexavalent)  Lead** [* Only for Chromite mines] [**Only for Base Metal mines]

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 264

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

(d) Information on radiation protection measures, if applicable.

41. Environmental Management Plan

Salient features of environmental protection measures

S. No. Environmental issues* Already practiced, if Proposed applicable 1 Air pollution Water spraying, Plantation , wet drilling, dust mask 2 Water pollution Retaining wall around the dump site, garland drain, sump 3. Water conservation - At the end of lease period deepest excavated part will be used for rain water storage. 4. Noise pollution Proper maintenance of machinery, Plantation, Ear plugs/ muffs 5. Solid waste / Tailings Retaining wall with proper dump slope with plantations & garland drain 6. Land degradation Rain water storage & plantations 7. Erosion & Sediment - No 8. Top soil No Not required 9. Ground vibration No Not required 10. Wildlife conservation - Not required. 11. Forest protection - Not required. 12. Others (specify) - No [* As applicable]

42. Compliance with environmental safeguards (For existing units)

(a) Status of the compliance of conditions of environmental clearance issued by MoEF, Yes No if any, enclosed.

(b) Status of the compliance of ‘Consent to Operate’ issued by SPCB, if any, enclosed. Yes No

(c) Latest 'environmental statement' enclosed. Yes No

43. Scoping of EIA Whether environmental impact assessment of the project has been carried out by Yes √ No following scoping process? If yes, a copy of scoping of EIA Yes √ No annexed.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 265

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

44. Mine closure

(a) Have you planned mine closure? Yes √ No

(b) Submitted a conceptual mine Yes √ No closure plan. (Progressive mine Closure Plan)

(c) If yes, indicate estimated amount for - implementing the same (in Rs. lakhs) **( Mine Closer plan will be prepared before one year closing of mine.)

45. Capital cost of the project (in Rs. Lakh) 260.0 (Based on latest estimate)

46. Cost of environmental protection measures (in Rs. Lakh) S. Capital Recurring cost Particulars No cost / annum 1. Pollution Control 5.00 1.00 2. Pollution Monitoring 5.00 1.50 3. Plantation on Barren Area 10.00 3.00 4. Occupation Health 3.00 0.75 Miscellaneous (Fencing, 5. 5.00 1.00 Garland Drains etc.) Total 28.00 7.25

47. Amount earmarked for socio-economic welfare measures for the nearby villages other than R&R plans. S.No. Detail Expenditure per year ( in lac/year) 1. Provide clean drinking facility in Umrangshu 1,00,000 village 2. Construct village road of Umrangshu 3,50,000 3. Distribute free books & school uniform in 1,50,000 School in Umrangshu village 4. Construct washroom for girls at Umrangshu 2,00,000 village. 5. Provide free medical health check-up camps & 3,00,000 free medicine distribution. 6. Give scholarship to bright students. 1,00,000 Total 12,00,000

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 266

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

48. Public Hearing 07.02.2020 (a) Date of Advertisement THE ASSAM TRIBUNE, (b) Newspapers in which the advertisement appeared

(c) Date of public hearing (DD/MM/YYYY) 12/03/2020

(d) Public Hearing Panel chaired by & members present -.

Shri Dipak Jidung, ACS, Addl. Deputy Commissioner, Dima Hasao District, Assam & Shri Arabinda Das, Assistant Engineer, Pollution Control Board, Assam. (e) No. of people attended the public hearing meeting 100 8 and number of people from the lease area.

(f) Summary/details of public hearing in tabular form.

Response/Commitm Issues raised by the Fund S. N. ent of Project Action Plan Public Allotment Proponents Shri Jay Singh Durong All the mitigation PP will make EMP Cost – member of Autonomous measures will be sure for EMC Rs. 7.25 Council, haflong shared adopted to protect the will comply with lac/yr. his bitter experience that environment, CSR all the CSR cost – in earlies production time activities will be done mitigation 12.0 Lac/yr. of AMDCL project. The as per the proposal measure to AMDCL has not given and in protect the maintained the CSR consultation with environment. scheme and protection of locals. CSR activities degradation of Employment will be will be done and Environmental issues given to local people. records will be like Air and Water maintained. 1. Pollution for which the Preference will nearly Nalah only one be given to local potable water source of people for long-term become employment. unusable. But he welcomes the proposed project for the greater public interest and requested the AMDCL authority to generate the employment for the local people.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 267

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

2 Shri Jay Singh Enghi, Employment will be Preference will - President, Karbi given to local people. be given to local Students Association people for Dima Hasao District employment. Committee lodged complaint regarding Name of the project site location that there is no existence of New Umrangsho requested for correction as umrangso He requested to provide employment of local people.

3 Shri Santu Hojai Member All the mitigation PP will make EMP Cost – of Garampani measures will be sure for EMC Rs. 7.25 Development Forum adopted to protect the will comply with lac/yr. Umrangso left, welcome environment, CSR all the CSR cost – the AMDCL for the activities will be done mitigation 12.0 Lac/yr. proposed project and as per the proposal measure to requested to take given and in protect the necessary pollution consultation with environment. control measure before locals. CSR activities and during operation He will be done and also requested to the records will be AMDCL authority to take maintained. part of development for the effected people and the road connectivity potable water, healthy and medical facility community socio economic development etc. 4 Shri Promit Sengyung PP assures them Management of - General Secretary that, it will not AMDCL will Dimasa student union happen in future. make assure (DSU) Umrangso branch Social development that all the committee HQ haflong will be done as per precautionary Dima Hasao District the proposal; all the measures are directly alleged AMDCL mitigative measures being adopted. already failed to comply will be adopted to CSR activities

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 268

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

the local issues related control the pollution. will be done and with environment and records will be reimbursement of effected maintained. people thereby highly Compliance dissatisfied on their report will be previous mining activities submitted to including CSR scheme. concern He will oppose proposed authority on project if the AMDCL regular basis. authority do not fulfil the public grievances before commission of the project.

5 Shri Prabin Hojai Senior Shri Sonu Roy Vice Preference will - citizen Umrangso Dima Chairman AMDCL be given to local Hasao. He readout the assured that the people for memorandum of Dimasa AMDCL authority employment. student’s union (DSU) said - will try to fulfil Umrangso branch the demand placed by committee Dima Hasao the local people and District placed the NGO’s regarding area demand on behalf of development under student’s union and CSR scheme and submitted it to the requested to co- president of public operate for smooth Hearing and copy to the functioning the MD of AMDCL. He also proposed project. He thanks the AMDCL also thanks to the authority. He explained people for attending the bitter experience of in the public Hearing. the company come to Dima Hasao district but requested to generate local employment in the proposed project based on skill and qualification to take part of development of the deprived people.

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 269

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

6 Shri Mansing Enghi, Gao Company ensured to Once the project - Bhura, Umrangso work for the social gets started demanded the AMDCL welfare. various authority to provide Employment will be development preference of effected given to local people. activities will be people including taken up in the employment and others surrounding aspect. area especially in the affected area. Preference will be given to local people for employment. 7. Shri Dhan Singh Teron AMDCL assured that PP will make EMP Cost – General secretory Karbi they will try to fulfil sure for EMC Rs. 7.25 Students Association, the demand placed by will comply with lac/yr. Dima Hasao District the local people and all the CSR cost – Committee alleged that NGO’s regarding area mitigation 12.0 Lac/yr. no Development facility development under measure to has been provided by any CSR scheme. protect the company come to this environment. area as promised during CSR activities public hearing. will be done and records will be maintained. Preference will be given to local people for employment. 8. Shri Jay Sing teron, Gao AMDCL assured that PP will make EMP Cost – Blura of langehirong medical checkup will sure for EMC Rs. 7.25 alleged that no medical be organized as per will comply with lac/yr. health checkup camp has the proposal and all all the CSR cost – been organized by the the mitigative mitigation 12.0 Lac/yr. existing company and no measures will be measure to care has been taken by adopted to control protect the the authority of pollution the pollution. environment. control Board, Assam Employment will be CSR activities regarding environments given to local people will be done and degradation of Umrangso & occupational records will be area. He also advised to training will also be maintained. the AMDC authority to given. Preference will provide training of the be given to local local people for social people for

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 270

Prepared by M/s Udaipur Min-Tech Pvt. Ltd.

development for employment. employment of local people in the proposed project.

NOTE: - Copy of minutes of Public Hearing is enclosed as Annexure No. – XV.

49. Whether the following approvals* (wherever applicable) have been obtained?

√ (i) Site clearance from MoEF Yes No

(ii) ‘Consent for Establishment’ from the Yes No √ State Pollution Control Board

(iii) NOC from Atomic Mineral Division Yes No √

(iv) Mining plan approval from IBM / Ministry of Coal Yes √ No

(v) In case of existing mines, mining scheme approval from IBM Yes No √

(vi) Forestry clearance under FCA, 1980 Yes No √

(vii) NOC from Chief Controller of Explosives Yes No √

(viii) Commitment regarding availability / pumping of water from the concerned Yes No √ Authorities (ix) In case of ML area falling in notified areas of the Central Ground Water Authority, Yes No √ NOC from them. [* Annex copies of approvals and number them]

50. Was / is there any court case relating to the project or related activities? If so, provide details of present status. - No

M/s Assam Mineral Development Corporation Ltd New Umrangshu Limestone Area 271