7.         CONCLUSIONS AND RECOMMENDATIONS

Conclusions

7.1              The Project was commenced on 20th March 2003.  Environmental monitoring works were performed in the reporting month and all the monitoring results were checked and reviewed.

 

1-hr TSP

7.2              The 1-hour TSP monitoring was conducted as scheduled except the monitoring at Station B on 1, 4, 7, 9, 14, 15 and 17 August 2006. The Station B was not accessible to the monitoring team during the summer holiday of the school which was closed in these days. No Action/Limit Level exceedance was recorded in the reporting month.

 

24-hr TSP

7.3              The 24-hour TSP monitoring was conducted as scheduled except the monitoring at Station B on 2 and 8 August 06. The Station B was not accessible to the monitoring team during the summer holiday of the school which was closed in these days. No Action/Limit Level exceedance was recorded in the reporting month.

 

Construction Noise

7.4              Construction noise monitoring was conducted as scheduled except the monitoring at all Stations on 3 August 06 due to hosting of Typhoon Signal No. 3 as well as at Station B on 9 and 17 August 06 when the school was closed for summer holiday. No Action/Limit Level exceedance was recorded in the reporting month.

 

Water Quality

7.5              Water quality monitoring was conducted as scheduled. The DO concentration (3.8 mg/L) at W1 measured on 15 August 06 did not comply with the Compliance Level but within the baseline level (2.2-9.4mg/L). In addition, no construction activity was undertaken adjacent to the monitoring location. The non-compliance of DO level is therefore considered not due to the project activity. No further action was required.

 

Complaint and Prosecution

7.6              No environmental prosecution and complaint was received in the reporting month.

Recommendations

7.7              According to the environmental audit performed in this reporting month, the following recommendations were made:

Dust Impact

·          To prohibit any open burning on site.

·          To regularly maintain the machinery and vehicles on site.

·          To implement dust suppression measures on all haul roads, stockpiles and dry surfaces.

·          To provide sufficient dust control measures on site especially for present dry season.

Noise Impact

·          To inspect the noise sources from inside and outside of the site.

·          To space out noisy equipment and position as far away as possible from sensitive receivers.

·          To schedule noisy activities in order to minimize noise level expose to nearby sensitive receivers.

·          To liaise with schools and Examination Authority for examination times during contract period and liaise with Pok Oi Hospital on timing as well as duration of project. Noise shall be considered as an environmental constraint.

Water Impact

·          To identify any wastewater discharges from site.

·          To install sand traps or other means at discharge points.

·          To regularly maintain the condition of u-channel and catch pits.

·          To avoid stagnant water accumulation on site.

·          To size and employ sedimentation tanks with sufficient capacity.

·          To construct temporary ditch diverting surface runoff back to the site for soak away or other appropriate treatment.

·          To prevent surface runoff on the public road from the wheel washing bay or facilities.

Waste/Chemical Management

·          To check for any accumulation of waste materials or rubbish on site.

·          To check for any oil/chemical leakage from drip tray or chemical storage areas.

·          To avoid any discharge of chemical waste or oil directly from the site.

 Permit / Licenses

·          To display the EP and applicable CNP conspicuously on the construction sites at all site entrances/exits or at a convenient location for public information at all time.