EXECUTIVE SUMMARY

 

Introduction

 

This is the twenty-seventh monthly Environmental Monitoring and Audit (EM&A) report prepared by Maunsell Environmental Management Consultants Limited (MEMCL), which changed the name to ENSR Asia (HK) Ltd. (ENSR) on 1 May 2007 for the “Temporary Construction Waste Sorting Facility at Tseung Kwan O Area 137” (the Project). This report documents the findings of EM&A Works conducted during the impact period in January 2008 for Tseung Kwan O Area 137.

 

As advised by the Contractor, the project commenced on 12 November 2005. The construction activities in January 2008 were:

 

l             Operation of Construction Waste Sorting Facilities (CWSF) by mechanical sorting plant;

l             Replacement of tubular railing of drainage chamber;

l             Setting up of additional area Portion B3 to facilitate night work operation of the Sorting Facility;

l             Disposal of sorted waste to Landfills and Fill Banks; and

l             Maintenance work for haul road and mechanical sorting plants.

 

Environmental Monitoring Works

 

Air Quality

 

1-hr TSP Monitoring

 

All the monitoring data complied with the AL levels in the reporting month. The 1-hr TSP monitoring results remained at an acceptable level during the construction and operation of the temporary CWSF.

 

24-hr TSP Monitoring

 

All the monitoring data complied with the AL levels in the reporting month. The 24-hr TSP monitoring results remained at an acceptable level during the construction and operation of the temporary CWSF.

 

Complaints, Non-compliance and Prosecutions

 

No complaint, non-compliance or prosecution was received in the reporting month.

 

Permits and Licences

 

No new permit or license was obtained in the reporting month.

 

Environmental Site Inspection

 

There were 5 site inspections conducted in January 2008. Due to the dry weather conditions, minor fugitive dust was occasionally observed along the haul road next to CEDD’s site office at Area A, since the sprinkler for dampening the haul road was found malfunction. The sprinkler was repaired and the haul road was sufficiently dampened

 

The Contractor was reminded to prevent any silty materials or waste from entering the trapezoidal channel by providing bunding along the banks of the channel. The Contractor was also reminded to properly store the chemicals on site to prevent spillage.


Future Key Issues

 

The weather is expected to be dry and windy in the forthcoming month and as such, the Contractor should provide preventive measures to maintain sufficient dust suppression measures for vehicle movement along haul roads and during dumping and manual sorting of non-inert waste. It is recommended to implement sufficient mitigation measures to eliminate dust generation from dumping and sorting activities.

 

It is also recommended to implement all necessary preventive measures to avoid oil leakage on ground/soil, such as provision of drip trays for all oil drums/chemical containers and placement of tarpaulin sheets on the ground during maintenance of equipment on site. In the event of any oil leakage problem, the Contractor should properly remove the leaked oil and handle the contaminated soil as chemical waste.