EIA Mining

Views:
 
Category: Entertainment
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

ENVIRONMENTAL IMPACT ASSESSMENTOFMEVASA-1 (186.96 HA.) BAUXITE MINE : 

ENVIRONMENTAL IMPACT ASSESSMENTOFMEVASA-1 (186.96 HA.) BAUXITE MINE VILLAGE: MEVASA TALUKA : KALYANPUR DIST : JAMNAGAR

Slide 2: 

Project Location Village: Mevasa Taluka: Kalayanpur District : Jamnagar Longitudes: 690 18’30” Latitude: 220 13’25” Nearest Railway Station: 10 km. Bhatia Nearest Airport: 100 km. Jamnagar Project Details Mining Method : Opencast semi mechanized methods Mining Area: 186.96 ha Life of Mine : 5.3 Yrs Geological Reserve 7.12 Lac tones Mineable reserves 6.72 Lac tones Production Capacity : 1,25,000 T/Y Ultimate working Depth : 5 from ground level Thickness of Top Soil : 0.0 to 0.3 m

Slide 3: 

Proposed Landuse

EIA Process : 

EIA Process Screening Mining falls in the category A so EIA is Mandatory list however it also depends upon the magnitude of the project Quarries or opencast mining where the surface of the site exceeds 25ha, or peat extraction where the surface of the site exceeds 150 ha EIA is mandatory Scoping Simple Checklists Methodologies are adopted here to carry out the scoping of opencast mining The following environmental components (attributes) that will be impacted due to the project are

Slide 5: 

Areas which will be affected due to opencast mining are Land use Landscape Socio-economic Water resources/hydrology Water quality Air and dust Noise and vibrations Ecology (flora & fauna) Risk/hazards Public health and safety Etc.

Slide 6: 

Description of the Environment Any mining activity is likely to affect the quality of surrounding environment at and near the mine site during its operation. The nature and magnitude of impacts on different components of the environment viz. air, noise water, land, biological and socio- economic vary depending on the nature and size of the mining project. Keeping in view the environmental guidelines of the Ministry of Environment and Forest, Government of India, the EIA study is carried out for the proposed mine site and its surrounding covering 10 km. aerial radius form external boundaries of the mine. a) Suspended Particulate Matter: During the summer season 2009, the 98th percentile value of 24 hourly concentration of SPM is found to be in the ranges of 173.23 to 196.44 μg/m3 The SPM concentration observed at proposed Mevasa mine site is in the range of 128.46 to 174.29μg/m3, the 98 percentile value of the site is 173.86 μg/m3 which is well within the stipulated CPCB regulatory limits.

Slide 7: 

b) Respirable Particulate Matter RPM has harmful effects on human health, vegetation and animal life. To assess the impact of Respirable Particulate Matter (RPM) which are particles less than 10μg in size, Respirable Dust Sampler was installed at all the identified six locations in the study area During the summer season the 24 hourly concentrations of RPM was found to be in the range of 68.2 to 81.44 81.44 μg/m3 c) Sulphur dioxide (SO2) The 24 hourly concentration of SO2 in the area was found in the range of 13.76 to 18.21 μg/m3 The value of mine site Mevasa was 8.74 to 18.42 μg/m3 which is well within the 24 hourly regulatory standard value of CPCB, which is 120μg/m3 for industrial zone and 80 μg/m3 for residential / rural zone

Slide 8: 

d) Oxides of Nitrogen The 98th percentile 24 hourly concentrations of Nitrogen Oxides (NOx) in the study area is in the range of 14.8 μg/m3 to 25.82 μg/m3 However the values are well within the 24 hourly regulatory standard value of CPCB, which is 120μg/m3 for industrial zone and 80 μg/m3 for residential/ rural zone e) Noise environment The background noise levels in the villages (buffer zone) near the mine site has been observed in the range of 41.8 to 83.8 dB(A) f) Water Environment The major surface water bodies in study area are seasonal river Ran, Dam and village ponds The physico-chemical characteristics of all of the ground and surface water samples are within the stipulated standards of CPCB.

Slide 9: 

g) Land Environment Baseline status was assessed by collecting soil samples from villages and proposed mine in the study area based on land use pattern. The soil samples were analyzed for various parameters during summer season 2009. All the soils have 5.89 to 13.2% exchangeable sodium percent and Calcium is the dominant exchangeable cation followed by Magnesium, Sodium and Potassium h) Biological Environment Biological environment within the study area is represented by terrestrial and aquatic ecosystem. Terrestrial ecosystem is represented by thorny and some deciduous species. i) Socio-economic Environment Local people are benefited by increase in business in various sectors like transportation, trade and commerce, automobile, afforestation, excavation of ponds etc. There will certainly be improvement in standard of living due to facilities provided by GMDC in form of donation for a high school and proposed primary school building, proposed strengthening of primary healthcare centre economy through employment, increase in water storage due to creation of water body, etc.

Anticipated Impacts And Mitigation Measures : 

Anticipated Impacts And Mitigation Measures The impacts on environment from an opencast mining project is mainly due to excavation of ore and transportation. Air Generation of dust and burnt fuel gases in the form of fugitive and ambient air. They will be controlled by regular water sprinkling and preventive maintenance of machineries by employees b) Water The mining would be carried out up to the depth of 5 m., hence mining would not touch any ground water or surface water except monsoon The total water consumption is proposed to be 15 KL/ day, out of which approximately one KL domestic waste would be generated. This is proposed to be disposed by sock-pit method.

Slide 11: 

c) Noise Since the mining would be semi mechanized and manual, noise generation would be relatively less. However some noise would be generated because of operation of mining machineries and transport vehicles. This will be controlled by regular preventive maintenance and providing protective gears such as ear plugs etc. e) Land Land would be degraded because of excavation and dumping activities. The mitigative measures proposed are development of compensatory afforestation and reclamation of dumps. f) Biological The impacts on biological environment would be very less as the area is devoid of significant plantation. However, these are proposed to be mitigated through plantation and reclamation of land as above

Slide 12: 

g) Marine Sanctuary, Jamnagar Marine National Park and Sanctuary, Jamnagar, was declared as National Park and Sanctuary in August' 1980. Blessed with a great diversity of habitats, its coral reefs and mangroves and the series of 42 islands form a unique, though fragile, eco-system, which supports an amazing marine life and biodiversity. Although Marine Sanctuary is located at a distance of 3.44 kms and consists of mud flats devoid of vegetation. The impact on sanctuary will be negligible as because there would not be any polluted water discharge from mine site and the incremental prediction of dust particles shows 5 μg/m3 at a distance of 300 meter. Incidentally the prominent wind direction and velocity during the year from mine site to sanctuary is very less f) Socio-economic The land being government waste land, there are no land oustees. The overall impact on socio-economic environment would be positive by way of employment, education, medical, electricity, transport facilities

Environmental Monitoring and Control : 

Environmental Monitoring and Control For effective implementation and mid-term corrective measures (if required) monitoring and control of programme implementation is essential. For this purpose a time bound action programme for environmental management has been prepared Air, Water & Noise level Monitoring Schedule To check the efficiency of air, water and noise pollution control measures, environmental monitoring would be carried out by external environmental auditor as per statutory guidelines at strategic locations. The monitoring report is submitted to Gujarat Pollution Control Board. Annual environmental audit report is being prepared by external environmental auditor and submitted to GPCB to review the status of environment management system In case, it is found that the pollution levels exceed the tolerance limits fixed by the state/ Central Pollution Control board or any other statutory body the corrective/ remedial measures

Slide 14: 

Health Monitoring A periodic monitoring of health of the workers and staffs associated with the mining operations and other connected industrial activities is conducted for knowing their health status, identifying occupational diseases (if any), etc. in time and initiating required remedial measures

Post Project Environmental Monitoring : 

Post Project Environmental Monitoring Air Environment For the bauxite mine, two types of monitoring systems are proposed i.e. emission monitoring and ambient air quality monitoring systems The ambient air quality monitoring systems are recommended for monitoring variations in ground level concentrations of particulates and gaseous pollutants While emission monitoring covers emissions generated during mining activities and vehicular movement Noise Environment Monitoring of the noise levels and exposure time during mining activity is essential to assess the implementation of environmental management plan to reduce noise levels Periodic noise and personal noise exposure monitoring will be conducted. A good quality integrated sound level meter and noise exposure meter will be procured for the same

Slide 16: 

Noise Environment Monitoring of the noise levels and exposure time during mining activity is essential to assess the implementation of environmental management plan to reduce noise levels Periodic noise and personal noise exposure monitoring will be conducted A good quality integrated sound level meter and noise exposure meter will be procured for the same Water Environment Segregated septic tank will be provided as per requirement at the site office and other buildings (if any) Further some service wastewater and oil & grease generated from mine site and workshop will be collected and stored separately This wastewater will be properly treated and treated waste water will be reused for dust suppression and green belt development

Slide 17: 

Budgetary Provision For EMP Adequate budgetary provisions will be made and spent by GMDC management for construction, operation and maintenance of different pollution control systems. GMDC management shall make provisions for the implementation of measures suggested under EMP for each environmental component. The amount allocated for management of air, water, noise and land environment etc will be utilized for investment on pollution control equipment, facilities and monitoring of environmental parameters are immediately taken up