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.178
Monitoring of landfill facility
Closure of disposal facility
Decommissioning of the disposal facility
These are the sources that are related to the construction, operation and restoration and completion
phases. The construction phase has the potential to have the most direct impact in terms of physical
loss and disturbance, while operational and restoration phases have the potential to have the primary
impact in terms of exposure to contaminants.
POTENTIAL ENVIRONMENTAL IMPACTS OF DEVELOPING
Developing and operating a hazardous waste SLF at recommended site near village
Guman Hera will have impact of varying intensity/magnitude on different components
of environment such as Air, Water, Land, Ecology, Environmental health, Noise
environment, etc.
The potential impacts on the different components of environment due to
development and operation of SLF at the recommended site are discussed briefly
below:
Impact on Air Environment
During the construction phase, soil is excavated, earth bunds are constructed, liner
and drainage layer is laid, leachate collection and treatment system are installed,
administrative & laboratory buildings are constructed. During all these activities,
there are movement of heavy vehicles, removal of soil, handling and movement of
construction materials, etc. As a result the dust is expected to be generated. The
dust generation will increase the concentration of suspended particulates in the
ambient air. These are short - term impacts. To mitigate these impacts, periodic
spray of water is proposed which will reduce the impact on ambient air quality.
During the operation phase, handling of waste, transportation, storage and disposal
will results in dust generation. The dust generation in operation phase will have longterm
impact. However, handling of waste in wet condition or in closed bags reduces
the impact.
During the closure /post -closure phase, there will be short term impact on the air
environment due to dust generation from laying of cover liner, soil compaction, etc.
Around recommended site near village Guman Hera, there is no thick green belt to
absorb the dust except some wild bushes grown along the Najafgarh drain (south -
east of the site). However, the site is 1 Km away from nearest settlement towards the
most dominant wind direction. The SPM level in the ambient air will therefore, get
diluted to some extent as it reaches the nearest settlement. In order to minimise this
impact, development of a green belt around the facility is proposed.
Impact on Water Environment
Environment Division, National Productivity Council, New Delhi
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