EIA Studies of 3 Pre-Identified Hazardous Waste Disposal Sites in ...

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Rapid EIA Studies of 3 Pre-identified Hazardous Waste Disposal Sites in NCT - Delhi Page No.138 Table 5.6: Evaluation of Site-I: Bawana Relocation Industrial Site Attribute Attribute Measurement Sensitivity Weightag Index * e Attribut e Score Remark Population within 500 meters Receptor Related Scarcely populated, > 100 The nearest village (Holambi Kalan) is at 1 km distance from the site 0.25 80 20 Distance to nearest drinking water well Approx 3000 m 0.5 60 30 Use of site by nearby The site is at present under the residents ownership of Commissioner of Not used 0 50 0industries. Distance to nearest off Nearest off site building is Vinod Rice site building 1000 m 0.6 40 24Mill Presence of major transportation route Road 0.5 30 15 Land use/zoning Industrial 0.5 30 15The site falls within DSIDC Udyog Vihar. Critical environments Pristine natural This is not a critical environment for any environment for endangered or threatened species. birds 0.25 30 7.5 Subtotal 320 112 Distance to nearest surface water Depth to ground water Type of contamination Precipitation effectiveness index (PEI) ** Soil permeability Bedrock permeability Depth to bedrock Pathway Related 0 The nearest surface water body is Bawana escape/Ghoga drain which also forms the drainage system for the whole region lies adjacent to the site. Western Yamuna canal is 3 -4 km from the < 500 m 1 55 55proposed site. As per the CGWB comments on the site, the ground water table in and around the site varies from 0.75 to 4.5. During the geotechnical investigation at the site ( Feb, 2002), GW table was < 5 m 1 45 45observed at 4.5 m bgl No No contaminationis observed in contamination groundwater/surface water sample/soil 0 45 0sample. Climate of NCT-Delhi is semi arid. PEI for semi arid climate is in the range of 16 to 31. For worst case PEI of 31 is 31 0.25 25 6.25considered. < 15 % clay 0.85 25 The clay % in first 10 m bgl subsoil varies from 0 to 17 and thereafter it 21.3increases. The max. clay % is 31. Quartzite rock is most prevalent bedrock 0 0 20 0in NCT - Delhi. The depth to bedrock at the site is > 300 m 0 20 0beyond 300 m bgl. Susceptibility to erosion & run-off Slight/potential 0.25 15 3.75 Environment Division, National Productivity Council, New Delhi 5
Rapid EIA Studies of 3 Pre-identified Hazardous Waste Disposal Sites in NCT - Delhi Page No.139 Climatic features with respect to Air pollution The wind speeds are high in this region ( 9.9 - 13.7 kmph) during summer and No problem 0 15 mid-monsoon and are associated with higher mixing heights thereby providing 0high dispersion. Susceptibility to seismic Moderately high Zone IV having seismic Intensity in the activity 0.75 15 11.3order of VIII. Subtotal 280 143 Waste Characteristics Related 0 Toxicity Mostly ETP sludge generated from Sax level 1 0.25 50 12.5metal finishing industries. Radioactivity Not radioactive 0 30 0 Persistence Metals 1 30 30 Ignitability No ignitable 0 20 0 Reactivity Stable and reacts very slowly 0.25 20 5 Corrosivity pH of 6 - 8 0.25 20 5 Solubility Slightly soluble 0.5 20 10 Volatility Least volatile 0.25 15 3.75 Physical state Solid/sludge 0.25 15 3.75 Subtotal 220 70 Waste Management Practice Related Hazardous waste quantity/ annum Waste Incompatibility > 2000 tonnes 1 45 45 50 MT per annum. Hazardous waste 0.25 30 7.5 Co-disposal with Municipal wastes Non degradable 1 25 25 Use of liners Composite liner 0.25 20 5 Incineration with off-gas cleaning Leachate Treatment Site Security No incineration of waste 0 20 0 Complete collection & treatment 0.25 20 5 Secure fence with lock 0.25 10 2.5 0 The total quantity of hazardous waste generated from approved industrial estates/areas in NCT - Delhi is approx. Safety measures Adequate 0.25 10 2.5 Subtotal 180 92.5 Total 1000 417 * Sensitivity Index (SI) varies from 0 to 1 (in a segment of 0.0 - 0.25, 0.25 - 0.5, 0.5 - 0.75 & 0.75 - 1.0) for each parameter as given in MOEF guideline (Refer table 3.1). Higher value of SI indicates higher potential hazard. Environment Division, National Productivity Council, New Delhi 5
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Annex II, Page No vi the site where
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Mappin g Unit Description with loam
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