3.         ENVIRONMENTAL SITE INSPECTION

 

3.1               Environmental site inspections are required to inspect the construction activities and operation of the temporary CWSF in order to ensure that appropriate environmental protection and pollution control mitigation measures are properly implemented.

 

3.2               There were 4 site inspections conducted in May 2006 for the temporary CWSF at TKO 137 on 4, 10, 18 and 25 May 2006.

 

Site Inspections

 

3.3               Site inspections were carried out by ET to monitor the implementation of proper environmental pollution control and mitigation measures for the Project. After the site inspection, the Contractor was notified of the ET’s observations and recommendations. A corrective action plan detailing the environmental observations had also been prepared by the ET. The Contractor then completed this plan to propose/report their remedial works. This corrective action plan submission procedure was adopted for each subsequent ET’s inspection to notify all the relevant parties of the Contractor’s follow up actions. The site inspection summaries are attached in Appendix H. Particular observations are described as follows:

 

Air Quality

 

·         Fugitive dust was occasionally observed during transferring, sorting and dumping of C&D waste. Haul road occasionally appeared dry. The Contractor was reminded to provide sufficient water spraying. The Contractor had installed water sprinklers at tipping hall but water spraying was still awaiting.

 

·         Two automatic wheel washing facilities were installed at the site egress of the Project. However, Wheel-washing bays at Areas B1 and B2 had been found mal-function.

 

·         Dark smoke was observed from the generator set behind the Engineer’s site office at Area A.

 

·         Unpaved area next to Area B1 was found dry and fugitive dust was observed during vehicular movement. The Contractor was reminded to dampen all the unpaved areas on site.

 

·         The weather condition was mostly wet and windy in the reporting month. Water truck for dampening the haul road was deployed during drier days. However, the dampening frequency was inadequate.

 

·         Vehicles were travelling below the speed limit in the temporary CWSF. There were sufficient speed limit signs on site to advise the drivers.

 

Noise

 

·         The major noise source was vehicle movement in the temporary CWSF. Since the nearby NSRs were remote from the temporary CWSF, the noise impact was minimal. There was no specific observation noted regarding noise issue.

 

Water Quality

 

·         Small amount of rubbish, silty material and stagnant water was found inside the trapezoidal channel after heavy rains.

 

·         Water ponding was found in open area and tipping hall at Area A. The Contractor was reminded to fill the area or remove the stagnant water regularly.

·         Bunding along the trapezoidal channel had yet provided. The Contractor was reminded to provide bunding along the trapezoidal channel to prevent surface runoff and muddy water released from site.

 

·         The Contractor was reminded to apply for the Effluent Discharge License.

 

·         Besides the afore-said issues, the Contractor was reminded to maintain the drainage systems regularly. It was recommended to arrange additional maintenance for the silt traps at the wheel washing bays before and after rainstorms so as to ensure their maximum treatment capacities.

 

Chemical and Waste Management

 

·         Oil buckets were found placed on a drip tray without cover near the tipping hall. The Contractor was reminded to provide tarpaulin cover to the oil buckets.

 

·         The Contractor provided waste skips to collect general refuse and would dispose of them regularly to the SENT Landfill.

 

Landscape and Visual

 

·         Hoarding was erected at the site egress and aligned along the site boundary in connection with the Fill Bank at TKO 137.

 

Review of Environmental Monitoring Procedures

 

3.4               The monitoring works conducted by the Environmental Team were inspected regularly. The observations for the monitoring works were recorded and summarised as follows:

 

·         The monitoring team recorded the observations around the monitoring stations within and outside of the construction site.

 

·         The monitoring team recorded the temperature, air pressure and general weather condition on the monitoring day.

 

Assessment of Environmental Monitoring Results

 

3.5               All monitoring results were audited against the A/L levels and any exceedances would be validated.

 

3.6               The monitoring results in this reporting period were comparable with the established action and limit levels.

 

Advice on the Solid and Liquid Waste Management Status

 

3.7               As advised by the Contractor, there was no disposal of inert C&D materials, C&D waste and chemical waste in the reporting month.

 

3.8               The actual amounts of different types of waste generated by the activities of the Project in the month are shown in Table 3.1.

 

Table 3.1         Actual Amounts of Waste Generated in May 2006

 

Waste Type

Actual Amount

Disposal Locations

Public fill collected

73,082.60 ton

-

Sorted waste (inert material)

4,526.19 ton

TKO Fill Bank

Sorted waste (non-inert material)

64,560.15 ton

SENT Landfill

C&D waste

0 tonne

SENT Landfill

Chemical waste

0 Litre

Chemical Waste Treatment Centre

 

3.9               The Contractor should provide sufficient drip trays for all the oil drums/chemical containers. Besides, these drip trays should be covered by tarpaulin sheet to minimize rainfall accumulation.

 

3.10            The Contractor should use suitable containers with proper labels to store chemical wastes inside a designated chemical waste store in accordance with Code of Practice on the Packaging, Labelling and Storage of Chemical Wastes. The Contractor should also advise their workers of the proper procedures in handling the chemical waste. All the trip tickets for chemical waste disposal were properly kept in the site office. No chemical waste disposal was undertaken in the reporting month.

 

3.11            The Contractor should provide sufficient preventive measures during equipment maintenance works so as to avoid oil leakage on the ground. In the event of any oil leakage, the Contractor should clean up the polluted soil and handle all the materials using for this cleaning works as chemical waste.

 

Environmental Licences and Permits

 

3.12            No new environmental license and permit was applied or obtained in the reporting month.

 

3.13            The Contractor had submitted the drainage plan for review, both ET and IEC had provided comments and the revised plan was awaiting. The Contractor was also advised to apply for the effluent discharge license.

 

3.14            The status of all permits/licences obtained/in use during the reporting period are summarised in Table 3.2.

 

Table 3.2         Summary of Environmental Licensing and Permit Status

 

Description

Permit No.

Valid Period

Remarks

From

To

Environmental Permit

EP-134/2002/F

26/1/06

-

(Valid)

·    Site clearance

·    Construction of a temporary storm water system

·    Stockpiling of 6 million m3 of public fill

·    Setting up two barging points for transporting the stockpiled public fill by barges

·    Setting up a temporary barging point at the existing Explosive Off-loading Barging Point for the period of May 2004 to December 2004 for transporting the stockpiled public fill by barge

·    Construction and operation of a Construction and Demolition Material Sorting Facility (C&DMSF)

·    Setting up a Construction and Demolition Material Crushing Facility at the TKO Basin

·    Remove the temporary fill bank

Registration as a Chemical Waste Producer

5213-839-P2896-01

25/1/06

--

(Registered)

Implementation Status of Environmental Mitigation Measures

 

3.15            An updated summary of the Environmental Mitigation Implementation Schedule (EMIS) is presented in Appendix I. Most of the necessary mitigation measures were implemented properly. Any deficiencies were noted in the remarks of the schedule.

 

Summary of Exceedances of the Environmental Quality Performance Limit

 

3.16            There was no exceedance on 1-hr and 24-hr TSP recorded in the reporting month.

 

3.17            The event action plans is attached in Appendix J.

 

Summary of Complaints, Notifications of Summons and Successful Prosecutions

 

3.18            No complaints, notifications of summons and prosecutions were received in the reporting month. A summary of environmental complaints and prosecutions was given in Table 3.3.

 

Table 3.3         Summary of Environmental Complaints and Prosecutions

 

Complaints logged

Summons served

Successful Prosecution

May 2006

Cumulative

May 2006

Cumulative

May 2006

Cumulative

0

0

0

0

0

0