This is the eighth monthly Environmental
Monitoring and Audit (EM&A) report prepared by Maunsell Environmental
Management Consultants Limited (MEMCL), the designated Environmental Team (ET),
for the Project “Operation of Public Fill Reception Facility at Tuen Mun Area
38”. This report presents the results of EM&A works conducted in the period
from 1 to 31 August 2006.
As advised by the Contractor, the
construction activities carried out in the reporting month are:
l
Operation & Maintenance of facilities in Tuen Mun Area 38 Fill Bank;
l
Removal of Public Fill Stockpiling area in Tuen Mun Area 38 & supply
of suitable public fill to the PBR2 Sorting Facilities;
l
Operation and removal of crushing plant;
l
Construction of hoarding of Portion “S” to sorting facilities; and
l
Landscaping works.
Monitoring of 1-hour Total Suspended
Particulates (TSP) and 24-hour TSP at two designated monitoring stations and
water quality at four designated monitoring stations were performed. The
monitoring results were checked and reviewed. Site inspections were conducted
on weekly basis. The implementation of the environmental mitigation measures,
Event and Action Plans and environmental complaint handling procedures were
also implemented.
Environmental Monitoring Works
Air Quality
All measured 1-hour and 24-hour TSP concentrations
in the reporting month were below the Action and Limit (AL) Levels.
Water Quality
For water quality
monitoring, eight exceedances (five Action and three Limit Levels) were
recorded in the reporting month. All exceedances were concluded not related to the Project-works.
Implementation
Status of Environmental Mitigation Measures
The
following key observations were made during site inspection with regards to the
implementation status of environmental mitigation measures:
·
The Contractor was reminded to provide adequate watering to haul roads
and dusty operations more frequently;
·
Silty material inside drainage channel should be cleared regularly;
·
Water pondings should be removed regularly during wet season;
·
All stockpiles should be covered or sprayed with water; and
·
Drip trays should be provided to all chemicals drums.
Environmental
Complaints and Prosecution
No
complaint, summons or prosecution related to environmental issues was made
against the Project in the reporting period.
Future Key Issues
Key
issues to be considered in the coming month include:
·
Dust generation from activities on-site, such as vehicular movements
along unpaved area and rock crushing activities.
·
Noise impact from operating equipment and machinery on-site.
·
Uncontrolled wastewater and surface runoff from the construction site
discharge into nearby water body.
·
Storage and using of chemicals/fuel and chemical waste/waste oil on
site.