Guidelines for Conducting Environmental Impact Assessment : Site Selection for Common Hazardous Waste Management Facility
DOCUMENT SERIES HAZWAMS/25/2002-2003
GUIDELINES FOR
CONDUCTING ENVIRONMENTAL IMPACT ASSESSMENT :
SITE SELECTION FOR COMMON HAZARDOUS WASTE
MANAGEMENT FACILITY
CENTRAL POLLUTION CONTROL BOARD
OCTOBER, 2003
19
kesÀvêer³e Òeot 40.00 l Excellent (5)
Ideal (4)
Good (3)
Poor (2)
Bad (1)
Slope Percent :
Natural slope of a site is important from the drainage consideration. But, land with higher slopes may pose difficulty in the construction and may need leveling up. To prevent water logging, the site should not be concave i.e. there should not be any depression. Therefore, following scales have been developed for evaluating the slope percent of the sites :
First Scale
(Slope %)
Second Scale
(Slope %)
Evaluation
(Relative Value)
1.5
1.5 - 1.2
1.2 - 0.75
0.75 - 0.50
< 0.5
1.5
1.5 - 2.5
2.5 - 7.0
7.0 - 15
> 15
Excellent (5)
Ideal (4)
Good (3)
Poor (2)
Bad (1)
l
Topography :
In general the site topography is to be convex in relation to the surrounding so that the rain-water is drained away from the site naturally. So, a site with convex topography can be regarded as excellent and that with concave is regarded as bad.
l
Flood Proneness :
In general, the flood prone areas are rejected. But the site can get flooded incase of very high rainfall and without proper drainage. There is a possiblity of water contamination if the site gets flooded. So due weightage is given depending upon extent of flood proneness in a scale of 5 to 1 corresponding to excellent to bad.
6
l
Wind Direction
Though, generation of toxic fumes is not expected due to very nature of the waste to be disposed off, handling of waste in the disposal facility may create air pollution in form of dust formation.
Prominent wind direction may affect the population on the downstream side of the facility. So any village within a distance of one km downstream of the sites can be vulnerable to any air pollution due to the
GUIDELINES FOR
CONDUCTING ENVIRONMENTAL IMPACT ASSESSMENT :
SITE SELECTION FOR COMMON HAZARDOUS WASTE
MANAGEMENT FACILITY
CENTRAL POLLUTION CONTROL BOARD
OCTOBER, 2003
19
kesÀvêer³e Òeot 40.00 l Excellent (5)
Ideal (4)
Good (3)
Poor (2)
Bad (1)
Slope Percent :
Natural slope of a site is important from the drainage consideration. But, land with higher slopes may pose difficulty in the construction and may need leveling up. To prevent water logging, the site should not be concave i.e. there should not be any depression. Therefore, following scales have been developed for evaluating the slope percent of the sites :
First Scale
(Slope %)
Second Scale
(Slope %)
Evaluation
(Relative Value)
1.5
1.5 - 1.2
1.2 - 0.75
0.75 - 0.50
< 0.5
1.5
1.5 - 2.5
2.5 - 7.0
7.0 - 15
> 15
Excellent (5)
Ideal (4)
Good (3)
Poor (2)
Bad (1)
l
Topography :
In general the site topography is to be convex in relation to the surrounding so that the rain-water is drained away from the site naturally. So, a site with convex topography can be regarded as excellent and that with concave is regarded as bad.
l
Flood Proneness :
In general, the flood prone areas are rejected. But the site can get flooded incase of very high rainfall and without proper drainage. There is a possiblity of water contamination if the site gets flooded. So due weightage is given depending upon extent of flood proneness in a scale of 5 to 1 corresponding to excellent to bad.
6
l
Wind Direction
Though, generation of toxic fumes is not expected due to very nature of the waste to be disposed off, handling of waste in the disposal facility may create air pollution in form of dust formation.
Prominent wind direction may affect the population on the downstream side of the facility. So any village within a distance of one km downstream of the sites can be vulnerable to any air pollution due to the
References: Guidelines for Hazardous Waste Management & Handling published by Ministry of Environment & Forest, 1991. Oeltzschner and D. Mutz, Deutche Gesellschaft fur Tecnische Zusanmmenarbeit (GTZ) GmbH., 1994. by Judith Petts & Gev Eduljee, Published by John Wiley & Sons, 1994 Text Book on “Introduction to Environment Impact Assessment” 2nd edition by John Glasson, Riki Therivel and Andrew Chandik Published by UCL Press, 1999.