EIA Studies of 3 Pre-Identified Hazardous Waste Disposal Sites in ...
EIA Studies of 3 Pre-Identified Hazardous Waste Disposal Sites in ... EIA Studies of 3 Pre-Identified Hazardous Waste Disposal Sites in ...
Rapid EIA Studies of 3 Pre-identified Hazardous Waste Disposal Sites in NCT - Delhi Page No.142 Table 5.8: Evaluation of Site III near village Guman Hera Attribute Attribute Sensitivity Measurement Index * Weightag e Attribute Remark Score Population within 500 meters Distance to nearest drinking water well Receptor Related Nearest village GumanHera is 1 Km away. However, a "Gooshalla" (Cow shelter) is located adjacent to the site but does not have permanent 0 0 80 0inhabitants. 1 Km 0.6 60 The nearest drinking water well is located in village Guman Hera which is 361 km away. The site is under the ownership of MCD. Use of site by nearby residents No use 0 50 0 Distance to nearest off site building approx. The nearest building is that of a scholl 1000m 0.6 40 24located at 1 km from the site. Presence of major transportation route Road 0.5 30 15 Land use/zoning Agriculture 0.25 30 7.5 Critical environments Not a critical environment 0 30 The site is not a critical environemnt for 0endangered species. Subtotal 320 82.5 Pathway Related Distance to nearest surface water Nearest surface water body is Najafgarh drain which is within 500m from the Depth to ground water Type of contamination > 500m 0.75 55 41.25boundary of the site. 4.5 m 0.75 45 6.5 m bgl. 33.75 No contamination 0 45 0 As per the CGWB comments on the site, the ground water table in and around the site is 4.5 m bgl. However, during the geotechnical investigation at the site ( Feb, 2002), GW table was observed at Precipitation effectiveness index * Climate of NCT-Delhi is semi arid. PEI for semi arid climate is in the range of 16 31 0.25 25 6.25to 31. Soil permeability The clay% varies from 0 to 13 in the 0 - 15% 0.9 25 22.5subsoil upto a depth of 20 m bgl. Bedrock permeability 0 0 20 Quartzite rock is most prevalent bedrock 0in NCT - Delhi. Depth to bedrock The depth to bedrock at the site is > 300m 0 20 0beyond 300 m bgl. Susceptibility to erosion & run-off No erosion 0 15 0 Climatic features with respect to Air pollution Susceptibility to seismic activity No problem 0 15 high dispersion. 0 Moderately high 0.75 15 11.25 The wind speeds are high in this region ( 9.9 - 13.7 kmph) during summer and mid-monsoon and are associated with higher mixing heights thereby providing Environment Division, National Productivity Council, New Delhi 5
Rapid EIA Studies of 3 Pre-identified Hazardous Waste Disposal Sites in NCT - Delhi Page No.143 Subtotal 280 115 Waste Characteristics Related Toxicity Mostly ETP sludge generated from 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 The total quantity of hazardous waste generated from approved industrial estates/areas in NCT - Delhi is approx. 50 MT per annum. Waste Incompatibility Co-disposal with Municipal wastes Use of liners Incineration with offgas cleaning > 2000 tonnes 1 45 45 Hazardous waste 0.25 30 7.5 Non degradable 1 25 25 Composite liner 0.25 20 5 No incineration of waste 0 20 0 Leachate Treatment Complete collection & treatment 0.25 20 5 Site Security Secure fence with lock 0.25 10 2.5 Safety measures Adequate 0.25 10 2.5 Subtotal 180 92.5 Total 1000 360 * 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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Rapid <strong>EIA</strong> <strong>Studies</strong> <strong>of</strong> 3 <strong>Pre</strong>-identified <strong>Hazardous</strong> <strong>Waste</strong> <strong>Disposal</strong> <strong>Sites</strong> <strong>in</strong> NCT - Delhi<br />
Page No.143<br />
Subtotal 280 115<br />
<strong>Waste</strong> Characteristics Related<br />
Toxicity<br />
Mostly ETP sludge generated from<br />
0.25 50 12.5metal f<strong>in</strong>ish<strong>in</strong>g <strong>in</strong>dustries.<br />
Radioactivity Not<br />
radioactive 0 30 0<br />
Persistence Metals 1 30 30<br />
Ignitability No ignitable 0 20 0<br />
Reactivity<br />
Stable and<br />
reacts very<br />
slowly 0.25 20 5<br />
Corrosivity pH <strong>of</strong> 6 - 8 0.25 20 5<br />
Solubility<br />
Slightly soluble<br />
0.5 20 10<br />
Volatility Least volatile 0.25 15 3.75<br />
Physical state Solid/sludge 0.25 15 3.75<br />
Subtotal 220 70<br />
<strong>Waste</strong> Management Practice Related<br />
<strong>Hazardous</strong> waste<br />
quantity/ annum<br />
The total quantity <strong>of</strong> hazardous waste<br />
generated from approved <strong>in</strong>dustrial<br />
estates/areas <strong>in</strong> NCT - Delhi is approx.<br />
50 MT per annum.<br />
<strong>Waste</strong><br />
Incompatibility<br />
Co-disposal with<br />
Municipal wastes<br />
Use <strong>of</strong> l<strong>in</strong>ers<br />
Inc<strong>in</strong>eration with <strong>of</strong>fgas<br />
clean<strong>in</strong>g<br />
> 2000 tonnes 1 45 45<br />
<strong>Hazardous</strong><br />
waste 0.25 30 7.5<br />
Non<br />
degradable 1 25 25<br />
Composite<br />
l<strong>in</strong>er 0.25 20 5<br />
No<br />
<strong>in</strong>c<strong>in</strong>eration <strong>of</strong><br />
waste 0 20 0<br />
Leachate Treatment Complete<br />
collection &<br />
treatment 0.25 20 5<br />
Site Security<br />
Secure fence<br />
with lock 0.25 10 2.5<br />
Safety measures Adequate 0.25 10 2.5<br />
Subtotal 180 92.5<br />
Total 1000 360<br />
* Sensitivity Index (SI) varies from 0 to 1 (<strong>in</strong> a segment <strong>of</strong> 0.0 - 0.25, 0.25 - 0.5, 0.5 - 0.75 & 0.75 - 1.0) for each<br />
parameter as given <strong>in</strong> MOEF guidel<strong>in</strong>e (Refer table 3.1). Higher value <strong>of</strong> SI <strong>in</strong>dicates higher potential hazard.<br />
Environment Division, National Productivity Council, New Delhi<br />
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