Impact on soil
329.
The main anticipated impacts on soil during the construction stage will
be disturbance
or loss of top soil, its compaction and pollution. Surplus excavated soil will be generated
during the construction of service centers. Even though surplus materials will be used as
embankment fills as far as possible, a certain amount of earth will remain.
The movement of
equipment and the temporary storage of materials on the ground during the construction may
lead to compaction of the soil. This compaction will take place in areas affected by the
construction works, in its vicinity, and in the access areas.
Mitigation measures:
330.
To minimize this impact on soil quality, the following measures shall be implemented:
•
Topsoil of about 30 cm depth shall be removed and
stored separately during
excavation works, and after the construction, the same soil shall be replaced on
the top, in unpaved areas;
•
To
minimize soil compaction, the movement of all types of vehicles and equipment
will be allowed only through identified assess roads;
•
Contractors will be required to use only authorized carriers, while obtaining all
necessary permissions per respective national legislation.
331.
The pollution of soil during the construction phase may
be caused by the improper
handling of fuel and oil during refueling and poor waste management which is reviewed in
the next chapters.
Waste management
Hazardous construction wastes
332.
During the construction phase, hazardous wastes will be generated from vehicle
operation
and maintenance, used boxing from fuel, painting, used batteries and other
activities.
The improper handling, storage and disposal of these waste materials will lead to
pollution of soil, groundwater and surface water courses located close to the project site, as
they are hazardous to human health.
333.
It is also anticipated that asbestos containing wastes will also be generated at the
Tashkent and Namangan project sites during the demolition
of existing buildings with
asbestos contained roofing slates (Figures 39 - 40). Asbestos dust generated during
demolition represents a serious hazard for workers and people living in surrounded areas.
Therefore, special procedures on the safe handling and disposal of such wastes have to be
developed. There is a procedure on storage, handling and
disposal such materials in
Uzbekistan.24 However, in order to bring the procedure in compliance with international
standards, a template/example of an Asbestos Management and Disposal Plan (AMDP) has
been developed. The template of ACMMP is provided in Appendix 2.
334.
In addition to the Site Specific Environmental Management Plan (SSEMP) for these
two sites, Contractors will have to develop and implement an AMDP.
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