ENVIRONMENTAL MANAGEMENT REPORT GRAVEL MINE

Transcription

1 ENVIRONMENTAL MANAGEMENT REPORT Of GRAVEL MINE Survey No:98, Village: Morampudi, Mandal: Rajamahendravaram Rural, District: East Godavari, State: Andhra Pradesh. AREA OF MINING LEASE Ha. For 1,50, m 3 /ANNUM OF ROAD METAL PRODUCTION By Smt. Pidikiti Sridevi

2 1.0 INTRODUCTION Smt. Pidikiti Sridevi has granted a Quarry lease for Gravel over an extent of Ha in Sy. No:98 of, Morampudi Village, Rajamahendravaram Rural Mandal, East Godavari District, Andhra Pradesh, Pin by the Deputy Director of Mines & Geology, Kakinada. The Quarry Lease deed was executed by Assistant Director of Mines and Geology, Rajamahendravaram. The lease in favour of Smt.Pidikiti Sridevi for the unexpired portion of the lease period i.e. up to 5 Years by the Deputy Director of Mines & Geology, Kakinada vide proc. No. 4452/Q1/2016 dated The Mining plan was approved by Deputy Director of Mines and Geology, Kakinada vide Letter No. 4452/Q1/2016 dated The Subject report presents the Environmental Management Plan detailing the measures proposed to be implemented Smt.Pidikiti Sridevi Gravel Mine. Brief Description of the Nature of the Project. Project is Gravel Mine located in an area of Ha. Road Metal of 1,50, m3/annum is produced by means of conventional method of opencast mining through drilling, blasting, loading and shifting through dumpers/tippers before crushed. The cost of the Project is Rs.20/- Lakhs. 2.0 LOCATION OF THE QUARRY AREA: Smt.Pidikiti Sridevi Gravel Mine mining lease for production of Road Metal over an extent of Hectares in S.No:98, Morampudi Village, Rajamahendravaram Rural Mandal, East Godavari District, Andhra Pradesh. The Mine Lease area is a part of the Survey of India Toposheet No: 65 11/13. The site falls between the following latitudes and longitudes. Latitude Longitude N E N E N E N E N E

3 N E N E N E N E, N E N E N E N E N E, N E N E The location map of the Quarry Lease Area is shown in Fig 1. Nearest railway line connecting Rajahmundry Samalkota Junction of South Central Railway line is located at a distance of 5.3 km in WSW from the site. from the Quarry Lease Area. Key map showing the location of various features around the Quarry Lease Area is shown in Fig 2. Rajamundry is major town at a distance of 3.0 km in W-direction. The National Highway (NH-5) (Change to NH-16) connecting Visakhapatnam to Vijayawada is at a distance of 4.0 km in Western direction, Nearest Major road connecting from Rajahmundry - Satilite City is at a distance of 1.0 km in SW direction. Nearest Railway station is Rajahmundry RS which at 5.5 km in W to the Quarry Lease Area There are no wild life sanctuaries, wild life sanctuaries, elephant/tiger reserves within 10km radius of the study area. Nearest Settlements from the Quarry Lease Area Morampudi 2.8 km W Nearest Reserved Forests from the Quarry Lease Area Divancheruvu West RF 1.8 km N Divancheruvu East RF 5.6 km NE Salient features of Quarry Lease Area are given in Table 1 and Fig - 3 shows the study area of 10 km radius around the Quarry Lease Area

4 2.1 Topography: The topography of the ML area varies from 99 to 127 m RL with surface relief of 28m. The general slope of the terrain is towards North East. 2.2 Geology and Exploration a. Brief description of Regional Geology with reference to location of lease/applied area The Eastern Ghat Mobile Belt (EGMB) is more than 600km in length from Srikakulam in the North to Ongole in the South. This belt is more than 100km in width in Northern Part and taper in the Southern Part. It has broad actuate trend with westward convexity. The NNE-SSW trend in the Southern part of the belt changes NE- SW in the North EGMB is divided into three longitudinal zones viz. 1. Western-Charnockitic zone 2. Central- Khondalite Zone 3. Eastern- Migmatite Zone b. Detailed description of geology of lease area Local Geology: Charnockite and Hypersthene Gnesisses are component Rock units in the form of large massive and high hills. The Charnockite is fresh looking greasy, dark rock the Charnockite exhibits the blue colour due to the presence of Hypersthene. Hypersthene Gneissess are fine grained than the igneous Charnockite associated with Garnet, Quartz, Biotite, Orthoclase and Opaque minerals. Vinukonda with represented by Hypersthene Gneissess.

5 2.3 RESERVES AND LIFE OF THE MINE Total Geological Reserves Proved reserves m 3 Reserves blocked under safety slopes m 3 Total reserves blocked m 3 Reserves available for mining m 3 Extraction of market grade 100% recovery m 3 Life of the mine m 3 / m Mining Methodology 5years The Road Metal in the Quarry Lease Area is exposed on the surface with sheet. Hence, it is proposed to quarry the sheet by Open Cast Semi Mechanized Method by developing the bench of 3m height and bench width of 1.50m with shallow drilling and blasting. The development of benches in the sheet rock will be 60 0 safety slopes. Drill holes of 3m depth will be drilled in a staggered pattern at 3m X 2.50m interval. Temporary stocks will be maintained on day to day basis, entire ROM will be cleared within 4 to 5 days. The production of Road Metal continuous throughout the year except during monsoon. The average production of cu.m per year can be easily achieved in single shift with sufficient men and machinery. LIST OF MACHINERY S.No. Machinery No s 1 Excavators 1 2 Tractor mounted compressors 1 3 Jack Hammers 1 4 Tipper 3 5 Water tanker 1 Lessee will apply for the Explosive license for storing the explosives with 60kg Portable magazine. Alternatively engages a licensed blasting contractor for carrying out the drilling and blasting.

6 3.2 DESCRIPTION OF ENVIRONMENT The project environmental quality in the vicinity of a quarry lease area identified for proposed mining serves as the baseline status and also for identification of environmental concerns/impacts corresponding to project area. land use pattern The quarry lease area is surrounded by hillocks comprising road metal of good quality. The surrounding area of the quarry lease area are quarries for Road Metal and beyond are agricultural lands 3.3 Water Regime: The subject area is a part of hill and the surrounding areas around are drained under canal command. The ground water occurs under unconfined conditions in both hard rock and alluvium which are shallow in nature. No impact on surface water or ground water is foreseen due to quarry operations. 3.4 Flora and Fauna: The whole area is occupied by scattered sparse vegetation of thorny trees and small bushes. In the quarry lease area no wild animals are witnesses as per the statements collected from the local population since 50 years. 3.5 Quality of Air, Water and Ambient Noise Level: The subject area is away from industries and Human settlements. The impact of quarrying is not likely to have any adverse impact on the existing environment. Quarrying even on a small scale causes some environmental impact. Therefore, efforts are necessary to mitigate the environmental impact created. The management is well aware of this aspect and will take all precautions to mitigate the impact. 3.6 Climatic Conditions: The peak summer will be in the month of May. Highest temperatures of 47.2 C are recorded in the area during the month of May and the

7 lowest temperature of 12.0 C is recorded in the month of January. The average rainfall in the district is mm 3.7 Human settlements Human settlements within 5 km of the quarry are given below: Village Population Morampudi 1200 (Source: 3.8 Public buildings No public buildings, important places and monuments are seen in and around the quarry lease area; however, the lessee will adopt the safety measures while conducting the quarry operations as per the Regulations of Metalliferrous Mines Regulation 1961 Sanctuaries/ eco-sensitive areas There are no Sanctuaries/ eco-sensitive areas existing within 5 km radius 4.0 IMPACT ASSESSMENT (a) Land Area. The mining lease area is 6.791Ha. Ha. By the end of life of mine 6.791Ha will be excavated. The pits will be utilized for water storage and harvesting structure. (b) Air Quality The project includes various quarrying operations involving development of benches, approach roads, haul roads, drilling, blasting, excavation and transportation

8 These operations generally result in generation of dust and thereby pose health hazards. However, adequate control measures will be provided at every stage of operation such as water sprinkling at loading and unloading point and on haul roads before transportation to reduce the fugitive dust emissions. Heavy Earth Moving Machinery like excavator, dumpers, dozer and other transport vehicles will emit gaseous pollutants mainly CO and NOx. The generation of dust is anticipated from various quarry activities i.e. drilling, blasting, loading, haulage, unloading, and other activities related to quarry. The increment in the fugitive emissions will be due to material handling and transportation activity. These will be restricted to the lease area only by adopting water sprinkling, which will be practiced at the quarry site to control air pollution load. When the mines are under closure, the following is the ambient air quality. AAQ Monitoring Station No. Locations PM10 VALUES (ug/m 3 ) PM2.5 SO2 NOX 1. Mine Site Morampudi Ambient air quality standards promulgated by National Ambient Air Quality applicable to the subject project are given below Pollutant Sulphur Dioxide (SO2), µg/m 3 Nitrogen Dioxide (NO2), µg/m 3 NAAQ Standards Time Weighted Average Annual* 24 hours** Annual* 24 hours** Concentration in Ambient Air Industrial, Residential, Rural and Other Area Particulate Matter (size Annual* 60

9 less than 10 µm) or PM10 µg/m 3 Particulate Matter (size less than 2.5 µm) or PM2.5 µg/m 3 24 hours** 100 Annual* 24 hours** Dust levels will be higher within the active operational areas (quarry area) due to blasting and transportation. However, in the buffer zone it is not likely to be affected by dust problems, when proper dust suppression measures are taken Air Quality Management The following measures will be adopted to mitigate air pollution generated due to the quarry activities: water sprinkling while drilling Rock breaker will be used for breaking over size boulders in order to reduce dust and noise generation. Water spray on haulage roads & proper maintenance of haul roads will be done. Development of green belt around lease boundary, roads and other places will be carried out to control the air pollution. Personal Protective Equipment like dust mask will be provided to all employees working in the dusty areas. Proper maintenance of vehicles will be done to limit gaseous emissions. (c) Water Quality Water consumption in the mine is estimated to be about 8 m 3 /day as detailed below in table. Source of water is from bore well/local purchase.

10 WATER BALANCE (m 3 /day) Requirement Loss Wastewater Dust suppression Greenbelt Drinking Water Total Surface Water There is no perennial surface water source in the quarry lease area. Ground water is the source for the nearby habitation also. Stone is non-toxic in nature. There will be no outside discharge of liquid effluent from the quarry site. Ground Water Ground water pollution can take place only if the quarry rejects contain toxic substances, which get leached by the precipitation water and percolate to the ground water table thus polluting it. Any nearby wells or other sources of water can be rendered unfit for drinking and even for industrial use. This is not the case with this deposit as the stone or topsoil does not contain any harmful ingredients. Moreover, stone constitutes of fairly inert and chemically non- reactive ingredients. The reserves are estimated to a baseline upto 71m i.e, BM. The water table lies at 15 m from the general ground level. The quarry workings will not intersect ground water table. Water Pollution Control Measures The following measures will be implemented to prevent water pollution (if any) from the quarry: No wastewater will be generated during quarry operation Garland drains all along the downstream boundary of the pit.

11 Rainwater falling in the quarry pit will flow based on the slope into the garland drain provided with sedimentation pits. (d) Noise Levels Noise generation is from operations at quarry development, excavation and transportation of stone. High noise levels will be confined to work zone areas only. Noise levels get diffused rapidly with distance. Noise impact is mainly restricted to the work zone areas. Hence, the noise levels impact due to the quarry operations on community is insignificant. Noise Control Measures The following control measures will be adopted to keep the ambient noise levels well below the limits: Controlled blasting with proper spacing, burden, stemming and optimum charge/delay will be maintained. The blasting will be carried out during less human activity timings i.e. during lunch interval or during change of shifts. Proper maintenance, oiling and greasing of machines at regular intervals will be done. Green Belt and Plantation will be developed wherever possible (e) Vibration Levels ( due to blasting) Ground vibration, fly rock, air blast, noise, dust and fumes are the effects of blasting on environment. The seismic wave due to explosive energy in the ground can cause significant damage to structures and disturbance to human occupants due to vibration. The vibration/ Particle Velocity (Peak Particle Velocity) is measured in millimetre per second. The standards for safe limit

12 of PPV are established by Director General of Quarrys Safety for safe level criteria through Circular No. 7 dated 29/8/1997. The safe level criteria PPV as mentioned in Circular No. 7 of DGMS is presented below: - S. No PERMISSIBLE PEAK PARTICLE VELOCITY (mm/s) Type of Structure < 8 Hz Dominant Frequency 8-25 Hz A) Buildings/structures not belonging to the owner > 25 Hz Domestic houses/structures (Kuchcha brick and cement) Industrial Buildings (RCC and framed structures) Objects of historical importance and sensitive structure B) Buildings belonging to the owner with limited life span Domestic houses/structures (Kuchcha brick and cement) Industrial buildings (RCC & framed structures) Blasting damage has been classified into four categories; and no appreciable damage occur when PPV less than 17 mm/sec. So no effect is envisaged. EFFECT OF GROUND VIBRATION ON STRUCTURES S. No. Category Description of Damage 1. No Appreciable Damage 2. Threshold No formation of noticeable cracks (PPV <17mm / sec.) Formation of fine cracks, fall of plaster, opening & lengthening of old cracks, loosening of joints, dislodging of loose objects, etc. PPV mm / sec.)

13 3. Minor 4. Major Superficial not affecting the strength of structures broken windows. Hairline cracks in masonry around openings near partition, broken windows. Fall of loose mortar etc. (PPV 30 mm / sec) Formation of several large cracks, serious weakening of structures, shifting of foundation, fall of masonry, ruptures of opening vaults, etc. (PPV mm / sec) As the distance increases the PPV value is likely to reduce. The ground vibrations generated by blasting during the quarry operations will be maintained well within standards prescribed by DGMS by controlled blasting and optimum charge. Ground vibrations are not likely to affect the structures in the vicinity of quarry lease area. VIBRATIONS AND FLY ROCKS CONTROL MEASURES The blasting operations will be carried out by drilling and blasting. The measures for abatement of ground vibration, air blast and fly rocks are detailed below: Blasting will be performed strictly as per the guidelines specified under MMR, 1961; Proper design of blast with correct spacing, burden & optimum charge/delay; Supervision of drilling and blasting operations to ensure blast design geometry as per planning; Sub-drilling will be kept adequate to eliminate toe formation; Supervision of drilling and blasting operations to ensure blast design geometry; Sub-drilling will be kept just adequate to tear-off the bench bottom; Blasting operations will be carried out only during day time as per DGMS guidelines;

14 Proper warning signals will be used; Adequate safe distance from habitation as per standards from centre of blasting will be maintained; Drilling parameters like over burden, depth, diameter and spacing will be properly designed to ensure proper blast; Effective stemming of the explosives will be done in the drill holes; f. Acid Mine drainage There is no possibility of acid mine drainage g. Surface Subsidence The mining operations are by opencast method and no surface subsidence will be there h. Socio economics The main occupation of villagers is agriculture. The operations of mining activity in this area improved the socio-economic status of the local people by creation of employment i. Historical Monuments There are no Historical Monuments within 10 km radius of the quarry lease area DISASTER MANAGEMENT AND RISK ASSESSMENT When the accident takes place while carrying out the mining activity, immediately, First Aid will be applied this is in the mine site itself. If it is a minor, the treatment will be done at Site. If, any major accident, the person will be shifted to Kakinada (23 Km.) where all medical facilities are available. The site in-charge will take care of all statutory requirements if any disaster occurs in the mine. The address and Mobile no. of the person who will attend during the disaster management is given below

15 Address: Smt.Pedikiti Sridevi, W/o Sri Indra Prasad, D.No:3-45,Jerugupadu Village, Kadiyam Mandal, East Godavari District, Andhara Pradesh, Pin Post Project Monitoring Pollution monitoring program includes periodic analysis of air, ground water, soil and water samples. Ground water and soil samples at representative locations within and nearby the project site shall be periodically analyzed to detect contamination if any. In the event of any contamination, concerned authorities shall be notified immediately and appropriate corrective action in consultation with an approved consultant shall be initiated. 4.2 Monitoring Strategy The monitoring of various environmental parameters is necessary and is a part and parcel of the environmental protection measures. Monitoring is as important as that of control of pollution since the efficiency of control measures can only be determined by monitoring. A well-defined environmental monitoring program would be employed with trained and qualified staff to monitor the ambient air to check whether the quality of effluents is maintained within the permissible limits. A comprehensive monitoring program is suggested underneath. Environmental attributes should be monitored as given below: Air pollution and meteorological aspects. Water and waste water quality. Noise levels. Soil characteristics. Ecological preservation and up-gradation. Locations and frequency of monitoring will be as per the guidelines of Andhra Pradesh pollution control board and MOEF/SEIAA.

16 4.3 Ambient Air Monitoring As per MOEF& CC there is a need to identify 3 ambient air stations at 120 angle keeping the main source in the center. The ground level concentrations of suspended particulate, sulphur dioxide and nitrogen oxides in the ambient air outside the project boundaries and in the adjoining villages will be monitored at regular intervals. Any deviation from predicted/'expected values will be investigated and necessary action will be taken. 4.4 Noise Monitoring Noise levels in the workspace environment will be monitored periodically. If any deviation is observed necessary corrective measures will be taken. Monitoring noise levels is essential to assess the efficacy of maintenance of schedules undertaken to reduce noise levels and noise protection measures. A good quality sound pressure level meter is essential for this purpose. This work can be handled by plant authorities themselves or by hiring services. Noise surveillance is for the benefit of the workers well- being and to keep track of machine wear. 4.5 Monitoring of Water Quality Ground water near the project site will be routinely tested for its quality. No contamination of ground water and surface water is expected. However these waters will be periodically tested for any change of water quality. The effluents coming out of the process should be monitored regularly. Ground water is recommended to be monitored in at least two villages in the direction of ground water flow to keep surveillance on the ground water quality. 4.6 Reclamation Reclamation is in terms of vegetation after the rock is consumed and also as conversion into water reservoir, where possible.

17 4.7 Site Services Following facilities will be provided for the smooth working of the quarries:- Quarry office First aid room Store facility Toilet facility Drinking water facilities Rest shelters 4.8 Budgets for Environmental Protection Measures A budget of Rs 3.0 Lakhs/- is earmarked for Environmental Protection Measures Capital Cost 1 AIR POLLUTION CONTROL MEASURES Dust Masks & Cloth - Air Pollution Monitoring - Gunny bags for covering the surface of - Recurring Cost/annum jackhammer holes Water Tanker for dust suppression 1,00,000 10,000 Total (A) 1,00,000 10,000 2 NOISE POLLUTION CONTROL MEASURES Ear Plug Noise Pollution Monitoring - 1,500 Total (B) WATER POLLUTION CONTROL MEASURES Monitoring of water samples along with ground water levels Total (C) LAND MANAGEMENT MEASURES Greenbelt development 1,00, Total (D) 5 SOCIAL WELFARE MEASURES OCCUPATIONAL HEALTH AND SAFETY MEASURES Personnel protection - 5,000 Medical Checkup - 7,500 Total (E) - 12,500 Grand Total (A+B+C+D+E) 3,00,000 35,000

18 Feature Altitude Latitude & Longitude TABLE 1.1 SALIENT FEATURES OF THE QUARRY LEASE AREA Village, Tehsil, District, State Area District Head Quarters IMD Station Details Max. Temp., o C 47.2 Min. Temp., o C 12.0 Relative Humidity,% 61-81% Annual rainfall, Nearest Water Bodies Nearest Highway Nearest Railway Station Nearest Industries Nearest Village 82 m above MSL 1) N E, 2) N E, 3) N E, 4) N E, 5) N E, 6) N E, 7) N E, 8) N E, 9) N E, 10) N E, 11) N E, 12) N E, 13) N E, 14) N E, 15) N E, 16) N E. S.No:98, Morampudi Village, Rajamahendravaram Rural Mandal, East Godavari District, Andhra Pradesh Ha Kakinada 43.0 km - E Kakinada 43.0 km - E mm Godavari River 6.3 km - WSW The National Highway (NH-5) (Change to NH-16) connecting Visakhapatnam to Vijayawada is at a distance of 4.0 km in Western direction, Nearest Major road connecting from Rajahmundry - Satilite City is at a distance of 1.0 km in SW direction. Nearest Railway station is Rajahmundry RS which at 5.5 km in W None within 10 km radius Morampudi 2.8 km W

19 Nearest Town Inter State Boundary Nearest Air port Rajahmundry 3.0 km - W Andhra Pradesh Orissa 89.0 km N Madhurapudi (Rajahmundry) 13.4 km - N Bird Sanctuary/National Parks -- Divancheruvu West RF 1.8 km N Nearest Forest Divancheruvu East RF 5.6 km NE Historical places None within 10 km radius *all distances mentioned in the above table are aerial distances