Undari Limestone Mine
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Executive Summary of Draft EIA/EMP report prepared for Limestone Mining (3,00,000 MT/Annum) by Undari Limestone Mine at Survey No. 49/p, Village: Undari, Taluka: Gir-Gadhada, District: Gir-Somnath, Gujarat Prepared by San Envirotech Pvt. Ltd. 424, Medicine Market, Paldi Cross Road, Ahmedabad (Email: [email protected]) San Envirotech Pvt. Ltd., Ahmedabad Executive Summary E.1 INTRODUCTION The mining lease of Undari Limestone Mine is located at Survey No. 49/P, Village: Undari, Taluka: Gir-Gadhada, Dist. Gir-Somnath. The area of Lease is 4.0 ha. The lease was granted by Govt. of Gujarat in favor of Shri Dhirajlal Panchanbhai Vanchhani vide order no. MCR-1580 (S-112)- 4886-CHH, dated 28.04.2011. The mining lease was executed & registered on 21.06.2011 for a period of 50 years up to 20.06.2061. It is a chemical grade and cement grade limestone mine working since 2012. The plan was approved under Rule 22 of MCR 1960 vide RCOM, IBM, Udaipur vide letter no. 682 (23) (749)/2010 MCCM (N) UDP, dated 11.04.2011. The modified mining plan was approved by IMB vide letter no. 682 (23) (749) /2010 MCCM (N) UDP, dated 21.10.2013. The project is categorized under Category „B‟ - 1 (a) (mining lease area ≤100 hectare) - {Mining of Minerals} as per the EIA Notification, 2006 and amendment thereof. As the lease area is less than 5.0 ha, hence EC was not required at the time of establishment. After amendment in EIA Notification dated 07.10.2014, EC is applicable to all mining activities without considering area of mines. Lessee is has continued taking production without obtaining EC, SEAC/SEIAA has considered a case of Violation. Accordingly, Lessee has applied for EC to SEAC/SEIAA, Gujarat. E.1.1 Project Location The mine is located in Undari Village of Taluka: Gir-Gadhada, in Gir- Somnath District of Gujarat State. Geographical coordinates of the site is 20°51'50.96"N Latitude & 70°56'48.86"E Longitude. Mine lease area is covered under Survey of India Toposheet No. F42W13. The nearest Railway Station is Vadviyala Railway Station – 2.5 km. Una Railway Station is at distance of 10.5 km. The nearest highway is SH98 passes at a distance of 3.3 Km from the lease Boundary. Executive Summary - Undari Limestone Mine (Lease area: 4.0 Ha.) E-1 San Envirotech Pvt. Ltd., Ahmedabad Table 1 Salient features of the project site Details of the site Survey No. 49/p Village Undari Taluka Gir-Gadhada District Gir-Somnath Coordinates of the site Latitude: 20°51'50.96"N Longitude: 70°56'48.86"E Elevation 48-54 m AMSL Seismic Zone Seismic Zone-III Details of the study area Nearest Human Habitat Undari - 1.05 km Nearest Town Una-10.0 km Nearest Airport Diu-16.0 km Nearest Railway Station Vadviyala Railway Station-2.5 km Una Railway Station-10.5 km Nearest Highway SH-98 (Una-Talala)- 3.3 km Nearest Water bodies Pond of Village Maghardi - 4.18 km Machundari River – 6.05 km Arabian Sea - 17.0 km Nearest National Park, There are no National Parks or Wildlife Wildlife Sanctuaries, Eco- Sanctuaries or Eco-sensitive zone within Sensitive Zone 10 km radius from the ML Boundary. E.2 PROJECT DESCRIPTION Mining Method The present & proposed method of mining operation is manual semi- mechanized opencast method. Mining will be done by using hydraulic excavator, jack hammer, rock breaker, manual sizing, loading and transportation of limestone to Soda Ash/Cement plant through dumpers/tippers. No drilling and blasting is used. Life of Mine Available mineable reserves of Limestone is 14,70,322 tonnes and approximately 3,00,000 MT of limestone will be produced every year hence the life of mine is 6 years based on present available reserves. It may vary depending upon the mining activities carried out by lessee. At the end of life of mine, ultimate depth of the pit will be 28-26 mRL. No top soil will be generated. There will be no overburden or mineral reject in the lease hence backfilling is not possible. At the end of mine life, when pit will be reached ultimate depth and devoid of limestone, Executive Summary - Undari Limestone Mine (Lease area: 4.0 Ha.) E-2 San Envirotech Pvt. Ltd., Ahmedabad the area will be progressively reclaimed & rehabilitated by means of greenbelt development. The accumulated rain water will be used to recharge ground water table and for irrigation purpose. The salient features of Mining Lease are given in following table. Table 2 Salient features Mining Lease Mine Lease area 4.0 ha Land use Government Waste Land Mineral Limestone Production Quantity Present rate of production: 150000 MTPA Proposed rate of production: 300000 MTPA Mineable reserves 14,70,322 MT Mining Method Semi-mechanized Open cast Maximum bench height 6 m Working depth 22m to 24m Overall pit slope 450 Life of mine 6 years OB generation Nil Operation days per year 200 nos. Project cost Rs. 18 Lakhs Water requirement 7000 lit/day Source: from nearby dug well and mine pit water Manpower 10 nos. E.3 DESCRIPTION OF THE ENVIRONMENT Study Area: The study area for the project was considered as 10 km radius from the boundary of mine. Study Period: The baseline environment study was carried out for Winter Season i.e. January, 2019 to March, 2019. E.3.1 Meteorological Data The study area has humid climate due to Arabian Sea in the South. The area has irregular rainfall. The winter starts in December when day and night temperatures fall rapidly. The highest rainfall occurs in the month of July. The average maximum and minimum temperature recorded at site during study period were 37.00C and 16.00C respectively. The average relative humidity (maximum and minimum) was observed in the range of 91% to 03% during the study period. Executive Summary - Undari Limestone Mine (Lease area: 4.0 Ha.) E-3 San Envirotech Pvt. Ltd., Ahmedabad E.3.2 Air Environment The ambient air quality monitoring was carried out at 8 AAQM locations, to assess the existing sub-regional air quality status. Combined sampler along with the analytical methods, prescribed by CPCB was used for carrying out air quality monitoring. At all these sampling locations; PM10, PM2.5, SO2 and NOx were monitored on 24-hourly and CO & HC were monitored on 8-hourly basis to enable the comparison with ambient air quality standards prescribed by the CPCB. The data on concentrations of various pollutants were processed for different statistical parameters like arithmetic mean, standard deviation, minimum & maximum concentration and various percentile values. The results are summarized below: Particulate Matter (PM10) th An average and 98 percentile value of 24-hourly PM10 values at all the locations are found from 58.4 - 67.5 g/m3 and 63.2 - 74.3 g/m3. The results were found well within the National Ambient Air Quality Standards (NAAQS-CPCB) of 100 g/m3. Particulate Matter (PM2.5) th An average and 98 percentile value of 24-hourly PM2.5 values at all the locations ranges from 30.8 - 36.8 g/m3 and 35.7 - 44.6 g/m3. The values are well within National Ambient Air Quality Standards (NAAQS- CPCB) of 60 g/m3. Sulphur Dioxide (SO2) th An average and 98 percentile value of 24-hourly SO2 value of arithmetic mean at all the locations ranged from 11.3 - 13.6 g/m3 and 12.7 - 16.9 g/m3 respectively, which are well below National Ambient Air Quality Standards (NAAQS-CPCB) of 80 g/m3. Oxides of Nitrogen (NOx) An average and 98th percentile value of 24 hourly NOx value of arithmetic mean at all the locations ranged from 13.7 - 16.0 g/m3 and 15.7 - 18.2 g/m3 respectively, which are well below the National Ambient Air Quality Standards (NAAQS-CPCB) of 80 g/m3. Executive Summary - Undari Limestone Mine (Lease area: 4.0 Ha.) E-4 San Envirotech Pvt. Ltd., Ahmedabad Carbon Monoxide (CO) Minimum & Maximum value of CO at all the locations ranged from 1037 – 1274 g/m3. Hydro Carbon (HC) Minimum & Maximum value of Methane HC at all the locations ranges from 12.7 - 18.5 g/m3 & non-methane HC ranges from 1089 - 1352 g/m3. Conclusion: The quality of ambient air in the study area is compared with AAQM Standards prescribed by CPCB & found below the prescribed standards. E.3.3 Water Environment Four surface water & eight ground water samples were collected during the study period. Surface Water Quality Surface water samples were collected from ponds of Maghardi, Pichhvi, Madhgam and River Machundari. Results of the same are given in Chapter-3 of EIA report. Conclusion: It was observed that all the physico-chemical parameters and heavy metals from surface water samples except turbidity are below stipulated drinking water standards and are suitable for domestic purposes. Ground Water Quality Ground water samples have been collected from Mine Site, Ankolali, Sanvav, Vadviyala, Undari, Kesariya, Elampur, Ratad villages. The summary of the analysis is as below: Color: All the samples were found colorless meeting desirable norms. pH: All the samples meet the desirable standards (pH ranges from 7.2 - 7.6). Total Dissolved Solids (TDS): TDS in samples ranges from 892 mg/L (Undari) to 1119 mg/L (Sanvav). The entire samples meet the permissible limit of 2000 mg/L TDS. Calcium: Calcium contents in the water ranges from 46 mg/L (Elampur) to 97 mg/L (Mine Site), all the samples meet the permissible Executive Summary - Undari Limestone Mine (Lease area: 4.0 Ha.) E-5 San Envirotech Pvt.