TABLE OF CONTENTS

Page

EXECUTIVE SUMMARY  3

1       Introduction  5

1.1     Project Organization and Contacts of Key Management 5

1.2     Programme  6

1.3     Summary of Construction Works  6

2       Environmental Monitoring and Audit Requirements  7

2.1     Monitoring Parameters  7

2.2     Monitoring Locations  7

2.3     Environmental Quality Performance Limits (Action/Limit Levels) 7

2.4     Environmental Mitigation Measures  7

3       air quality monitoring   8

4       Noise MONITORING   8

5       Advice on the Solid and Liquid Waste Management Status  9

6       Summary of Exceedances of the Environmental Quality Performance Limit  10

7       Summary of Complaints, Notifications of Summons and Successful Prosecutions  10

8       REVIEW of THE VALIDITY OF THE EIA/ERR Predictions  10

9       Review of the effectivness and efficiency of mitigation measures  11

10     Review of success of EM&A Programme  11

11     Comments, recommendations and Conclusions  12

11.1        Comments  12

11.2        Recommendations  14

11.3        Conclusions  16

 

List of Tables

                                                                                                                                              

Table 1.1         Contact Information of Key Personnel

Table 3.1         Summary of 1-hour TSP Monitoring Results in the Reporting Period

Table 3.2         Summary of 24-hour TSP Monitoring Results in the Reporting Period

Table 4.1         Summary of Construction Noise Monitoring Results in the Reporting Period

Table 5.1         Summary of Waste Flow Table for Contract No. HY/2012/06

Table 5.2        Summary of Waste Flow Table for Contract No. 02/HY/2015 (Works Order Nos. CB128520-5 and CB128519-0)

 

Figures

 

Figure 1.1         General Project Layout Plan of Contract No. HY/2012/06

Figure 1.2          General Project Layout Plan of Contract No. 02/HY/2015 (Works Order Nos. CB128520-5 and CB128519-0)

Figure 1.3a-b     Locations of Monitoring Station

 

List of Appendices

 

Appendix A       Project Organization Structure

Appendix B       Construction Programme

Appendix C       Implementation Schedule of Environmental Mitigation Measures (EMIS)

Appendix D      Summary of Action and Limit Levels

Appendix E       Impact Air Quality Monitoring Results and their Graphical Presentation

Appendix F       Meteorological Data

Appendix G      Impact Daytime Construction Noise Monitoring Results and their Graphical Presentation

Appendix H       Statistics on Complaints, Notifications of Summons and Successful Prosecutions


 

EXECUTIVE SUMMARY

The proposed widening of Tolo Highway and Fanling Highway between Island House Interchange and Fanling (the Project) is a Designated Project under the Environmental Impact Assessment Ordinance (Cap. 499) (EIAO). An Environmental Impact Assessment (EIA) Report (the approved EIA Report) together with an Environmental Monitoring and Audit (EM&A) Manual (the approved EM&A Manual) were completed and approved under the EIAO on 14 July 2000 (Register Number: EIA-043/2000).

The objective of the Project ¡°Widening of Tolo Highway / Fanling Highway between Island House Interchange and Fanling¡± is to widen Tolo Highway and Fanling Highway to dual 4-lane carriageway in order to alleviate the current traffic congestion problems and to cope with the increasing transport demands to and from the urban areas and also cross boundary traffic.

 

The Project is a designated project and governed by an Environmental Permit (EP-324/2008) issued by the EPD on 23 December 2008. Subsequently, the EPD issued Variation of Environmental Permits of EP-324/2008/A, EP-324/2008/B, EP-324/2008/C and EP-324/2008/D on 31 January 2012, 17 March 2014, 27 March 2015 and 27 August 2015 respectively. The current valid VEP was applied on 29 December 2016 and the VEP (EP-324/2008/E) was subsequently granted on 26 January 2017.

The construction works for this Project are delivered in 2 stages i.e. Stage 1 (between Island House Interchange and Tai Hang) and Stage 2 (between Tai Hang and Wo Hop Shek Interchange).  Stage 2 would be implemented under three works contracts.  Contract No. HY/2012/06 ¡°Widening of Fanling Highway ¨C Tai Hang to Wo Hop Shek Interchange¡± and the entrusted portion to CEDD under Contract No. CV/2012/09 ¡°Liantang/Heung Yuen Wai Boundary Control Point Site Formation and Infrastructure Works ¨C Contract 3¡±. In addition, Contract No. ¡°Provision of Bus-Bus Interchange on Fanling Highway Kowloon Bound¡± was carried out within the site boundary of Contract No. 02/HY/2015. This report focuses on Contract No. HY/2012/06 ¡°Widening of Fanling Highway ¨C Tai Hang to Wo Hop Shek Interchange¡± in Stage 2 of the Project and  ¡°Provision of Bus-Bus Interchange on Fanling Highway Kowloon Bound¡± under Works Order Nos. CB128520-5 and CB128519-0 in Contract No. 02/HY/2015 ¡°Highway Department Term Contract (Management and Maintenance of Roads in Tai Po and North District excluding High Speed Roads 2016-2022)¡±.

Pursuant to the EP (EP-324/2008/E) Condition 2.7, the Capture Survey Trip Report for Ma Wat River Northern Meander (Version 2) for the Project was submitted on 24 December 2013 by the Environmental Team (ET) and verified by the Independent Environmental Checker (IEC) on 6 January 2014.

The construction phase of the Contract under the EP and the Environmental Monitoring and Audit (EM&A) programme of the contract commenced on 21 November 2013. The impact environmental monitoring and audit includes air quality and noise monitoring.

This report documents the findings of EM&A works conducted in the period between 1 November 2016 and 31 October 2017. As informed by the Contractor, construction activities of Contract No. HY/2012/06 in the reporting period were:

 

-          Backfilling;

-          Bridge construction;

-          Drainage;

-          Excavation;

-          Footbridge demolition;

-          Ground investigation;

-          House construction.

-          Noise barrier;

-          Retaining wall construction;

-          Site clearance;

-          Temporary bridge construction;

-          Piling works;

-          Pipe laying;

 

As informed by the Contractor, construction activities of Works Order Nos. CB128520-5 and CB128519-0 under Contract No. 02/HY/2015 in the reporting period were:

 

-         Backfilling

-         Backfilling to NB74 Bay 3 to Bay 7

-         Construction of footing

-         Construction of NB74 Bay 1 to Bay 2

-          Construction of Posts P03-P09

-          Construction of stem wall

-          Construction of type A footing with posts P01 and P02

-          Construction of type F manhole

-          ELS

-          Excavation for NB74 Bay 8B

-          Installation of ELS for NB74 Bay 8 to Bay 9

-          Installation of safety beams

-          Installation of sheet-piles

-          Plate Load Test

-          Posts of Cover Walkway

-          Site clearance

Reporting Change

Contract No. 02/HY/2015 (Works Order Nos. CB128520-5 and CB128519-0) has been included in this EM&A report.

Breaches of Action and Limit Levels for Air Quality

No exceedance of Action and Limit Level was recorded for 1-hour and 24-hour TSP monitoring in the reporting period.

Breaches of Action and Limit Levels for Noise

No Action or Limit Level exceedance of construction noise was recorded in the reporting period. No noise complaints related to 0700 ¨C 1900 hours on normal weekdays was received and followed by the Environmental Team in the reporting period.

Complaint, Notification of Summons and Successful Prosecution

One (1) air-related complaint was received on 13 January 2017 and followed up by the Environmental Team in the reporting month. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for January 2017.

 

One (1) noise-related complaint was received on 23 May 2017 and followed up by the Environmental Team. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for June 2017.

No notification of summons or successful prosecution was received in the reporting period.


1             Introduction

1.1          Project Organization and Contacts of Key Management

1.1.1       The project organization structure is shown in Appendix A. The key personnel contact names and numbers are summarized in Table 1.1.

  Table 1.1          Contact Information of Key Personnel

Party

Position

Name

Telephone

Fax

 

ER

(Hyder-Arup-Black & Veatch Joint Venture)

 

Chief Resident Engineer

Edwin Chung

6115 0818

2638 0950

 

IEC

 (Mott MacDonald Hong Kong Limited)

 

Independent Environmental Checker

Steven Tang

2828 5920

2827 1823

 

Contractor of [HY/2012/06]

 

(China State Construction Engineering (Hong Kong) Limited)

 

Environmental Officer

Michael Tsang

9277 4956

2672 2501

C C Chow

9679 6315

2672 2501

 

Contractor of [02/HY/2015]

 

(Chiu Hing Construction & Transportation Company Limited)

 

Safety Officer

Marty Tai

9106 5318

-

ET

 (AECOM Asia Company Limited)

ET Leader

Y W Fung

3922 9393

   3922 9797

Party

Position

Name

Telephone

Fax

 

ER

(Hyder-Arup-Black & Veatch Joint Venture)

 

Chief Resident Engineer

Edwin Chung

6115 0818

2638 0950

 

IEC

 (Mott MacDonald Hong Kong Limited)

 

Independent Environmental Checker

Steven Tang

2828 5920

2827 1823

 

Contractor

 

(China State Construction Engineering (Hong Kong) Limited)

 

Environmental Officer

Michael Tsang

9277 4956

2672 2501

C C Chow

9679 6315

2672 2501

ET

 (AECOM Asia Company Limited)

ET Leader

Y W Fung

3922 9393

   3922 9797

 

1.2          Programme

1.2.1       The Construction Programme is shown in Appendix B.

1.3          Summary of Construction Works

1.3.1       Details of the construction works of Contract No. HY/2012/06 carried out by the Contractor in this reporting period are listed below:

-    Backfilling;

-    Bridge construction;

-    Drainage;

-    Excavation;

-    Footbridge demolition;

-    Ground investigation;

-    House construction.

-    Noise barrier;

-    Retaining wall construction;

-    Site clearance;

-    Temporary bridge construction;

-    Piling works;

-    Pipe laying;

 

Details of the construction works of Works Order Nos. CB128520-5 and CB128519-0 under Contract No. 02/HY/2015 carried out by the Contractor in this reporting period are listed below:

 

-             Backfilling

-             Backfilling to NB74 Bay 3 to Bay 7

-             Construction of footing

-    Construction of NB74 Bay 1 to Bay 2

-    Construction of Posts P03-P09

-    Construction of stem wall

-    Construction of type A footing with posts P01 and P02

-    Construction of type F manhole

-    ELS

-    Excavation for NB74 Bay 8B

-             Installation of ELS for NB74 Bay 8 to Bay 9

-             Installation of safety beams

-             Installation of sheet-piles

-             Plate Load Test

-             Posts of Cover Walkway

-             Site clearance

 

1.3.2       The general layout plan of the Project site of Contract No. HY/2012/06 and Works Order Nos. CB128520-5 and CB128519-0 under 02/HY/2015 showing the contract areas are shown in Figure 1.1 and Figure 1.2 respectively.

1.3.3       The environmental mitigation measures implementation schedule are presented in Appendix C.

2             Environmental Monitoring and Audit Requirements

2.1          Monitoring Parameters

2.1.1       The updated EM&A Manual has designated 1 air quality monitoring station and 2 noise monitoring stations to monitor environmental impacts on air quality and noise due to Stage 2 of the Project.

2.1.2       The updated EM&A Manual also requires environmental site inspections for air quality, noise, water quality, chemical, waste management, ecology and landscape and visual impacts.

2.2          Monitoring Locations

2.2.1       For air quality monitoring, the monitoring station was set up at Fanling Government Secondary School, in accordance with updated EM&A Manual. The location is shown in Figure 1.3a.

2.2.2       For noise monitoring, the monitoring stations M2 and M3 were set up at West Tai Wo and Fanling Government Secondary School respectively in accordance with updated EM&A Manual. Figure 1.3a-b shows the locations of the monitoring stations.

2.3          Environmental Quality Performance Limits (Action/Limit Levels)

2.3.1       The environmental quality performance limits (i.e. Action/Limit Levels) of air quality monitoring were derived from the baseline air quality monitoring results at the monitoring station (AM2); while the environmental quality performance limits of noise monitoring were defined in the EM&A Manual.

2.3.2       The environmental quality performance limits are given in Appendix D.

2.4          Environmental Mitigation Measures

2.4.1       Relevant environmental mitigation measures were stipulated in the Particular Specification and EP for the Contractor to adopt. A list of environmental mitigation measures and their implementation statuses are given in Appendix C.

2.5          Environmental Impact Hypotheses Tested

2.5.1       The EIA Report concluded that with proper mitigation measures implemented, fugitive dust emission during the construction phase would be controlled and will not exceed the acceptable criteria. 

2.5.2       For construction noise, exceedances were predicted only at 2 schools (SR41 Wong Shiu Chi Middle School and SR45 HK Teacher¡¯s Association Secondary School) but they are out of the scope of this EM&A Programme.  Hence, the EIA did not anticipate any noise exceedances during the construction phase within the scope of this EM&A Programme.

2.5.3       The above criteria have been tested under this EM&A Programme during the reporting period.

 

 


3             air quality monitoring

3.1.1       In accordance with the updated EM&A Manual, baseline 1-hour and 24-hour TSP levels at one air quality monitoring station was established. Impact 1-hour TSP monitoring was conducted for at least three times every 6 days, while impact 24-hour TSP monitoring was carried out for at least once every 6 days.

3.1.2       The weather was mostly sunny, occasionally fine, cloudy and rainy days in the reporting period. Weather information including the wind speed and wind direction is annexed in Appendix F. The information was obtained from the Hong Kong Observatory.

3.1.3       The monitoring results for 1-hour TSP and 24-hour TSP monitoring are summarized in Tables 3.1 and 3.2 respectively. Detailed impact air quality monitoring results are presented in Appendix E.

Table 3.1          Summary of 1-hour TSP Monitoring Results in the Reporting Period

Location

Average (mg/m3)

Range (mg/m3)

Action Level  (mg/m3)

Limit Level (mg/m3)

AM2

(Fanling Government Secondary School)

71.1

58.8 ¨C 78.2

317.8

500

 

Table 3.2          Summary of 24-hour TSP Monitoring Results in the Reporting Period

Location

Average (mg/m3)

Range (mg/m3)

Action Level  (mg/m3)

Limit Level (mg/m3)

AM2

(Fanling Government Secondary School)

38.7

8.6 ¨C 88.4

200.7

260

 

3.1.4       The major dust sources in the reporting period included construction activities from Stage 2 of the Project, as well as nearby traffic emissions.

3.1.5       All 1-hour and 24-hour TSP results were below the Action and Limit Level in the reporting period.

3.1.6       Detailed impact air quality monitoring results are presented in Appendix E.

 

4             Noise MONITORING

4.1.1       In accordance with the EM&A Manual, impact noise monitoring was conducted for at least once per week during the construction phase of the Contract.

4.1.2       The monitoring results for construction noise are summarized in Table 4.1 and the monitoring data are provided in Appendix G.

  Table 4.1          Summary of Construction Noise Monitoring Results in the Reporting Period

 

Average (dB(A))

Leq (30 mins)

Range (dB(A))

Leq (30 mins)

Limit Level (dB(A)) 

Leq (30 mins)

M2*

69.1

63.6 ¨C 70.9

75

M3#

64.3

59.7 ¨C 69.2

65/70

              *+3dB(A) Façade correction included

# Limit Level of 70dB(A) applies to education institutes while 65dB(A) applies during school examination period.

 

4.1.3       The major noise sources during the noise monitoring included nearby road traffic noise.

4.1.4       No Action or Limit Level exceedance of construction noise was recorded in the reporting period. No noise complaints related to 0700 ¨C 1900 hours on normal weekdays was received and followed by the Environmental Team in the reporting period.

4.1.5       The graphical plots of the trends of the monitoring results are provided in Appendix G.

 

5             Advice on the Solid and Liquid Waste Management Status

5.1.1       As advised by the Contractor of Contract No. HY/2012/06, 35,475 m3 of inert C&D material was generated in the reporting month (15,079 m3 disposed of as public fill to Tuen Mun 38, 12,128 m3 of inert C&D materials was reused on site, 6,760 m3 of inert C&D materials was reused in other projects and 1,508 m3 was broken concrete). For C&D wastes, 2,623 m3 of general refuse was disposed of at NENT landfill, 836 kg of paper/cardboard packaging, 6,517 kg of plastics and 51,162 kg of metals were collected by recycling Contractors, and 0 kg of chemical wastes was collected by licensed Contractors in the reporting period.

5.1.2       The actual amounts of different types of waste generated by the activities of the Project in the reporting period are summarized in Table 5.1.

Table 5.1            Summary of Waste Flow Table for Contract No. HY/2012/06

 

Waste Type

Actual Amount

Disposal/Reuse Locations

Inert C&D materials disposed of as public fill

15,079 m3

Tuen Mun 38

Broken concrete

1,508 m3

Tuen Mun 38

C&D wastes disposed as general refuse

2,623 m3

NENT Landfill

Paper/cardboard packaging

836 kg

Recycling Contractors

Plastics

6,517 kg

Recycling Contractors

Metals

51,162 kg

Recycling Contractors

C&D materials reused on site

12,128 m3

Site Area

C&D materials reused in other projects

6,760 m3

Other projects

Chemical wastes

0kg

Licensed Contractors

 

5.1.3       As advised by the Contractor of Works Order Nos. CB128520-5 and CB128519-0 under Contract No. 02/HY/2015, 1080 m3 of inert C&D material was generated in the reporting month (1068 m3 disposed of as public fill to Tuen Mun 38, 0 m3 of inert C&D materials was reused on site, 0 m3 of inert C&D materials was reused in other projects and 12 m3 was broken concrete). For C&D wastes, 0 m3 of general refuse was disposed of at NENT landfill, 8 kg of paper/cardboard packaging, 9 kg of plastics and 0 kg of metals were collected by recycling Contractors in the reporting period.

5.1.4       The actual amounts of different types of waste generated by the activities of the Project in the reporting period are shown in Table 5.2.

   Table 5.2          Summary of Waste Flow Table for Contract No. 02/HY/2015 (Works Order Nos. CB128520-5 and CB128519-0)

 

Waste Type

Actual Amount

Disposal/Reuse Locations

Inert C&D materials disposed as public fill

1068 m3

Tuen Mun 38

Broken concrete

12 m3

Tuen Mun 38

C&D wastes disposed as general refuse

0 m3

NENT Landfill

Paper/cardboard packaging

8 kg

Recycling Facilities

Plastics

9 kg

Recycling Facilities

Metals

0 kg

Recycling Facilities

C&D materials reused on site

0 m3

Site Area

C&D materials reused in other projects

0 m3

Other projects

 

6             Summary of Exceedances of the Environmental Quality Performance Limit

6.1.1       All 1-hour and 24-hour TSP monitoring results complied with the Action / Limit Levels in the reporting period.

6.1.2       No Action or Limit Level exceedance of construction noise was recorded in the reporting period. No noise complains related to 0700 ¨C 1900 hours on normal weekdays was received and followed by the Environmental Team in the reporting period.

 

7             Summary of Complaints, Notifications of Summons and Successful Prosecutions

7.1.1       One (1) air-related complaint received on 13 January 2017 and followed up by the Environmental Yeam in the reporting month. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for January 2017.

7.1.2       One (1) noise-related complaint was received on 23 May 2017 and followed up by the Environmental Team. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for June 2017.

7.1.3       No notification of summons or successful prosecution was received in the reporting period.

7.1.4       The statistics on complaints, notifications of summons and successful prosecutions are summarized in Appendix H.

7.1.5       A 24-hour complaint hotline at 6628 8366 has been established for the Project. The hotline number is displayed at the site entrances, fencings and project signboards, as well as printed on publications such as newsletters for the public.

 

8             REVIEW of THE VALIDITY OF THE EIA/ERR Predictions

8.1.1       All the air quality monitoring results in the reporting period were below the Action and Limit Levels. The result was in line with the Environmental Impact Assessment (EIA) and Environmental Review Report (ERR) prediction that dust generation would be controlled and would not exceed the acceptable criteria, with proper implementation of the recommended dust mitigation measures.

8.1.2       All the noise monitoring results in the reporting period were below the Action and Limit Levels. The result was in line with the Environmental Impact Assessment (EIA) and Environmental Review Report (ERR) prediction that with the implementation of noise mitigation measures, the construction noise from the Project works will meet the stipulated criterion at the residential NSRs and at a majority of the education institutions.

 

9             Review of the effectivness and efficiency of mitigation measures

9.1.1       The impact air quality and noise monitoring programme ensured that any environmental impacts to the receivers would be readily detected and timely actions could be taken to rectify any non-compliance.  The environmental monitoring results indicated that the construction activities in general were in compliance with the relevant environmental requirements and were environmentally acceptable.  The weekly site inspections ensured that all the environmental mitigation measures recommended in the EIA/ERR were effectively implemented. Despite the minor deficiencies found during site audits, the Contractor has taken appropriate actions to rectify deficiencies within a reasonable timeframe. Therefore, the effectiveness and efficiency of the mitigation measures were considered high in most of the time.

9.1.2       For all the parameters under monitoring as mentioned in Section 8, the measured levels were in line with the EIA and ERR predictions generally. This indicates that the mitigation measures were effectively and efficiently implemented.

 

10          Review of success of EM&A Programme

10.1.1    The environmental monitoring methodology was considered well established as the monitoring results were found in line with the EIA predictions. 

10.1.2    As effective follow-up actions were promptly taken once exceedances were recorded, no further exceedance occurred. The EM&A programme was considered successfully and adequately conducted during the course of the reporting period.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11          Comments, recommendations and Conclusions

11.1        Comments

11.1.1    According to the environmental site inspections performed in the reporting period, the following comments are made to the Contractor for precautionary and rectification purposes:

Contract No. HY/2012/06

 

Air Quality Impact

11.1.2    The Contractor should provide wheel washing facilities at the vehicle exit point and clean up the mud trails for dust suppression.

11.1.3    The contractor should remove or cover the dusty materials to avoid windblown dust emission.

11.1.4    The Contractor should cover the stockpile entirely by impervious sheeting; or paved with hard surface and keep clear of dusty materials; to prevent windblown dust emission.

11.1.5    The Contractor should provide sufficient measures to keep the public access road clear of dusty materials.

11.1.6    The Contractor should spray the surface of breaking operation with water to prevent windblown dust emission. 

11.1.7    The Contractor should spray the open site areas with adequate water to prevent windblown dust emission.

11.1.8    The Contractor should ensure valid labels are provided for all NRMM before operations.

11.1.9    The Contractor should ensure the area between the wheel washing facilities and the exit point paved with concrete, bituminous materials or hardcores.

11.1.10  The Contractor should clean up the mud trail and ensure the wheel washing facility is operated properly.

11.1.11  The Contractor should remove the mud trail and ensure vehicles are wheel-washed properly before leaving the site.

Construction Noise Impact

11.1.12  Nil.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water Quality Impact

11.1.13  The Contractor should remove the materials, debris and general refuse in drainage to ensure flow of water without obstruction.

11.1.14  The Contractor should remove the sandy materials and implement measures to prevent surface runoff of site and silt from entering the drainage system.

11.1.15  The Contractor should remove the muddy water and implement preventive measures to prevent sand from being flushed to public road. 

11.1.16  The Contractor was advised to properly cover the exposed area with impervious sheeting to prevent runoff from the exposed working area to the drainage.

11.1.17  The Contractor was advised to implement measures to intercept suspended solids in runoff from the exposed slope and prevent muddy water being flushed from the site to public road.

11.1.18  The Contractor was advised to properly protect the existing drainage to prevent muddy water / material entering it.

11.1.19  The Contractor was reminded to provide bunding or protection to retain surface runoff.

11.1.20  The Contractor was advised to remove damaged sand bag and maintain the protection of gully.

11.1.21  The Contractor should remove the dusty materials near the entrance of the drainage system and implement sufficient measures to prevent debris entering the drainage system.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chemical and Waste Management

11.1.22  The Contractor should set up designated areas for temporary storage of construction wastes to maintain the site clean and tidy, and re-use them where possible.

11.1.23  The Contractor should remove the general refuse to keep the site clean and tidy.

11.1.24  The Contractor should keep chemical containers in designated storage areas, provide drip trays to prevent potential leakage, and dispose of chemical containers that are no longer in use promptly.

11.1.25  The Contractor should remove the construction materials and wastes and maintain the site clean and tidy.

11.1.26  The Contractor should provide recycle bins for collection and sorting.

11.1.27  The Contractor should remove the construction wastes found near existing vegetation to keep the site clean and tidy.

11.1.28  The Contractor should replace the faded warning label for the chemical storage area with proper warning label and display the label at the storage area.

11.1.29  The Contractor was advised to provide chemical containers with drip trays to prevent potential leakage.

11.1.30  The Contractor was advised to dispose of the oil in the drip tray as chemical waste and ensure the equipment is well-maintained.

11.1.31  The Contractor was advised to remove the water in the trip tray to prevent overflow of chemical in case of spillage.

11.1.32  The Contractor was advised to improve the housekeeping condition and keep the site clean and tidy.

11.1.33  The Contractor should provide a secondary containment for the chemical container to avoid potential leakage and provide proper label.

 

Landscape and Visual Impact

11.1.34  The Contractor should remove the construction materials near trees for maximum protection.

 

Miscellaneous

11.1.35  The Contractor should remove the stagnant water or apply larvicidal oil to prevent mosquito breeding.

11.1.36  The Contractor remove the stagnant water and retained water in the skip to prevent mosquito breeding.

 

 

 

 

 

 

 

 

 

 

 

Contract No. 02/HY/2015 (Works Order Nos. CB128520-5 and CB128519-0)

 

Air Quality Impact

11.1.37  The Contractor should spray the open site areas with adequate water to prevent windblown dust emission.

11.1.38  The Contractor should clean up the mud trail for dust suppression, ensure the wheel washing facility is operated properly and vehicles are wheel-washed properly before leaving the site.

11.1.39  The Contractor should cover the exposed stockpile entirely with impervious sheeting to prevent windblown dust emission.

11.1.40  The Contractor should ensure proper labels are provided for all NRMM before operation.

11.1.41  The Contractor should provide sufficient measures to keep the public access road clear of dusty material.

 

Construction Noise Impact

11.1.42  Nil.

 

Water Quality Impact

11.1.43  The Contractor should remove the dusty materials and implement sufficient measures to prevent silt from entering the drainage system.

 

Chemical and Waste Management

11.1.44  Nil.

 

Landscape and Visual Impact

11.1.45  Nil.

 

Miscellaneous

11.1.46  The Contractor was advised to remove the stagnant water or apply larvicidal oil to prevent mosquito breeding.

 

 

11.2        Recommendations

11.2.1    The impact air quality and noise monitoring programme ensures that any deterioration in environmental condition is readily detected and timely actions are taken to rectify any non-compliances. Assessment and analysis of monitoring results collected demonstrated the environmental acceptability of the Project. The weekly environmental site inspections ensure that all the environmental mitigation measures recommended in the ERR are effectively implemented.

11.2.2    The EM&A programme effectively monitored the environmental impacts from the construction activities and no particular recommendations were advised for the improvement of the programme.

11.3        Conclusions

11.3.1    All 1-hour and 24-hour TSP monitoring results complied with the Action / Limit Levels in the reporting period.

11.3.2    No Action or Limit Level exceedance of construction noise was recorded in the reporting period. No noise complaints related to 0700 ¨C 1900 hours on normal weekdays was received and followed by Environmental Team in the reporting period.

11.3.3    One (1) air-related complaint received on 13 January 2017 and followed up by the Environmental Yeam in the reporting month. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for January 2017.

11.3.4    One (1) noise-related complaint was received on 23 May 2017 and followed up by the Environmental Team. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for June 2017.

11.3.5    No notification of summons and successful prosecution was received in the reporting period.