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 ...
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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 />
No.19<br />
3.3.3 Exclusionary Factors<br />
Page<br />
Certa<strong>in</strong> factors termed as "Exclusionary Factors" should be imposed along with MOEF Stipulations<br />
for Sit<strong>in</strong>g <strong>of</strong> Industries to elim<strong>in</strong>ate environmentally unsuitable sites from further analysis. These<br />
Exclusionary Factors are given below:<br />
• Seismic risk zones<br />
• National parks/ wildlife sanctuaries<br />
• Surface and subsurface m<strong>in</strong><strong>in</strong>g areas<br />
• Coastal floor hazard areas<br />
• Coastal wet lands<br />
• Watersheds for public water supply<br />
• Critical recharge areas and sole source aquifers<br />
• Area <strong>of</strong> high well yield<br />
3.3.4 Rank<strong>in</strong>g <strong>of</strong> Site Alternatives<br />
The rank<strong>in</strong>g <strong>of</strong> candidate sites is to be carried out based on detailed environmental, social and<br />
community impacts. The methodology for rank<strong>in</strong>g <strong>of</strong> site alternatives comprises follow<strong>in</strong>g steps:<br />
Select attributes for evaluation <strong>of</strong> site alternatives.<br />
Apportion a total score <strong>of</strong> 1000 between the assessment attributes based on their importance<br />
through ranked pair-wise comparison technique.<br />
Develop Site Sensitivity Index (SSI) us<strong>in</strong>g Delphi Technique.<br />
Estimate Score for each attribute for various candidate site alternatives us<strong>in</strong>g SSIs.<br />
Add the score for <strong>in</strong>dividual site alternatives, to rank the alternatives based on total score.<br />
The attributes are listed <strong>in</strong> table-3.1 and the weightages are given <strong>in</strong> table-3.2.<br />
The site with the least score is less sensitive i.e., there will not be significant impacts on<br />
environmental quality due to locat<strong>in</strong>g hazardous waste treatment and disposal facilities and hence,<br />
the most acceptable.<br />
Table-3.1: Site Sensitivity Indices for Selected Attributes<br />
Attribute<br />
SENSITIVITY INDEX<br />
0.0 - 0.25 0.25 - 0.5 0.5 - 0.75 0.75 - 1.0<br />
Receptor Related<br />
Population with<strong>in</strong> 500<br />
meters<br />
0 to 100 100 to 250 250 to 1000 Greater than<br />
1000<br />
Distance to nearest<br />
dr<strong>in</strong>k<strong>in</strong>g water well<br />
Greater than<br />
5000 meters<br />
2500 to 5000<br />
Meters<br />
1000 to 2500<br />
meters<br />
Less than<br />
1000 Meters<br />
Use <strong>of</strong> site by nearby Not used Occasional Moderate Regular<br />
Environment Division, National Productivity Council, New Delhi<br />
1
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