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 – 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 – 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 – 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)”. The construction works of Works Order Nos. CB128520-5 and CB128519-0 under Contract No. 02/HY/2015 have been completed on 23 May 2018.

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 2017 and 31 October 2018. As informed by the Contractor, construction activities of Contract No. HY/2012/06 in the reporting period were:

- Site clearance

- Ground investigation

- Pipe laying

- Retaining wall construction

- Noise barrier

- Excavation

- Backfilling

- Drainage

- Footbridge demolition

- Bridge construction

- Piling

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 to NB74 Bay 3 to Bay 7

- Construction of catchpits and drainage pipes sheetpiling at Bay 9 to Bay 10

- Construction of footing for Bay 9 to Bay 10

- Construction of footing for NB74 Bay 8, 8A & 8B

- Construction of footpath & bus lay-by

- Construction of Posts P27-P30

- Construction of wall stem for NB74 Bay 2 to Bay 10

- Erection of NB posts and panels

- KMB works

- Metal frame for BBI

- Metal frame & roof cladding of bus shelter

- Sheetpiling at Bay 9 to Bay 10

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

One (1) Limit Level exceedance was recorded on 9 April 2018 for noise monitoring at M3. The exceedance at M3 is considered to be contributed from background noise, possibly traffic noise from Pak Wo Road and Fanling Highway. The exceedance was considered non-project-related.

Complaint, Notification of Summons and Successful Prosecution

One (1) noise-related complaint was received on 1 March 2018 and followed up by the Environmental Team. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for March 2018.

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
	Environmental Officer	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
	Environmental Officer	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:

- Site clearance

- Ground investigation

- Pipe laying

- Retaining wall construction

- Noise barrier

- Excavation

- Backfilling

- Drainage

- Footbridge demolition

- Bridge construction

- Piling

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 to NB74 Bay 3 to Bay 7

- Construction of catchpits and drainage pipes sheetpiling at Bay 9 to Bay 10

- Construction of footing for Bay 9 to Bay 10

- Construction of footing for NB74 Bay 8, 8A & 8B

- Construction of footpath & bus lay-by

- Construction of Posts P27-P30

- Construction of wall stem for NB74 Bay 2 to Bay 10

- Erection of NB posts and panels

- KMB works

- Metal frame for BBI

- Metal frame & roof cladding of bus shelter

- Sheetpiling at Bay 9 to Bay 10

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)

68.4

58.8 – 80.6

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)

37.7

9.2 – 97.1

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))

L_{eq
(30 mins)}

Range (dB(A))

L_{eq
(30 mins)}

Limit Level (dB(A))

L_{eq
(30 mins)}

M2*

68.7

63.1 – 71.2

M3^#

64.5

58.9 – 68.3

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

4.1.5 One (1) Limit Level exceedance was recorded on 9 April 2018 for noise monitoring at M3. The exceedance at M3 is considered to be contributed from background noise, possibly traffic noise from Pak Wo Road and Fanling Highway. The exceedance was considered non-project-related.

4.1.6 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, 42,863 m³ of inert C&D material was generated in the reporting month (13,077 m³ disposed of as public fill to Tuen Mun 38, 16,755 m³ of inert C&D materials was reused on site, 12,144 m³ of inert C&D materials was reused in other projects and 887 m³ was broken concrete). For C&D wastes, 1,065 m³ of general refuse was disposed of at NENT landfill, 764 kg of paper/cardboard packaging, 8,522 kg of plastics and 35,452 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	13,077 m³	Tuen Mun 38
Broken concrete	887 m³	Tuen Mun 38
C&D wastes disposed as general refuse	1,065 m³	NENT Landfill
Paper/cardboard packaging	764 kg	Recycling Contractors
Plastics	8,522 kg	Recycling Contractors
Metals	35,452 kg	Recycling Contractors
C&D materials reused on site	16,755 m³	Site Area
C&D materials reused in other projects	12,144 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, 142 m³ of inert C&D material was generated in the reporting month (137 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 5 m³ was broken concrete). For C&D wastes, 0 m³ of general refuse was disposed of at NENT landfill, 6 kg of paper/cardboard packaging, 5 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	137 m³	Tuen Mun 38
Broken concrete	5 m³	Tuen Mun 38
C&D wastes disposed as general refuse	0 m³	NENT Landfill
Paper/cardboard packaging	6 kg	Recycling Facilities
Plastics	5 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 Level exceedance of construction noise was recorded in the reporting period. No noise complains related to 0700 – 1900 hours on normal weekdays was received and followed by the Environmental Team in the reporting period.

6.1.3 One (1) Limit Level exceedance was recorded on 9 April 2018 for noise monitoring at M3. The exceedance at M3 is considered to be contributed from background noise, possibly traffic noise from Pak Wo Road and Fanling Highway. The exceedance was considered non-project-related.

7 Summary of Complaints, Notifications of Summons and Successful Prosecutions

7.1.1 One (1) noise-related complaint was received on 1 March 2018 and followed up by the Environmental Team. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for March 2018.

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

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

7.1.4 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 Most of 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.

8.1.3 One (1) Limit Level exceedance was recorded on 9 April 2018 for noise monitoring at M3. The exceedance at M3 is considered to be contributed from background noise, possibly traffic noise from Pak Wo Road and Fanling Highway. The exceedance was considered non-project-related.

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 was advised to provide adequate watering regularly for exposed area and slope as dust suppression.

11.1.3 The Contractor was advised to provide sufficient measures to keep the public access road clear of dusty material.

11.1.4 The Contractor was advised to remove the mud trails and ensure vehicles are properly wheel washed before leaving the site.

11.1.5 The Contractor was advised to provide valid NRMM label for all equipment before operation.

11.1.6 The Contractor was advised to cover the exposed stockpile of dusty materials entirely with impervious sheeting.

11.1.7 The Contractor was advised to cover the exposed slope properly with impervious sheeting for dust suppression.

11.1.8 The Contractor was advised to remove the dusty materials near the vehicle exit point, implement measures to direct surface run-off to sedimentation tank, pave the wheel washing area with hardcore and ensure all vehicles are properly wheel-washed before leaving the site.

11.1.9 The Contractor was advised to cover the stockpile of more than 20 bags of cement entirely with impervious sheeting for dust suppression.

Construction Noise Impact

11.1.10 The Contractor was reminded to wrap the breaker tip before operation as a noise mitigation measure.

Water Quality Impact

11.1.11 The Contractor was advised to remove the sandy materials near the drainage entrance and implement measures to prevent surface runoff of site and silt from entering the drainage system.

11.1.12 The Contractor was advised to remove the silt and debris in drainage and ensure flow of water without obstruction.

11.1.13 The Contractor was advised to implement effective measures to prevent muddy water being flowed outside the site

11.1.14 The Contractor was advised to provide proper protection for the drainage system.

11.1.15 The Contractor was advised to remove the general refuse and wastes in the drainage and ensure proper protection for drainage system is provided.

11.1.16 The Contractor was advised to clean up the public access road near site boundary and implement effective measures to prevent muddy surface runoff being spilled from the site to public area.

11.1.17 The Contractor was advised to ensure the channel directing the runoff from the wheel washing facility to sedimentation tank without overflow.

11.1.18 The Contractor was reminded to remove the stagnant water and treat the wastewater properly before discharge.

11.1.19 The Contractor was advised to provide sandbags along the site boundary to prevent surface runoff leaking outside the site area.

Chemical and Waste Management

11.1.20 The Contractor was advised to keep the site clean and tidy.

11.1.21 The Contractor was advised to provide secondary containment for chemical container to prevent potential leakage.

11.1.22 The Contractor was advised to provide proper label for all chemicals and store the chemical waste at a proper storage area.

11.1.23 The Contractor was advised to plug the opening of the drip tray to prevent potential leakage.

Landscape and Visual Impact

11.1.24 The Contractor.

Miscellaneous

11.1.25 Nil.

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

Air Quality Impact

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

11.1.27 The Contractor was advised to keep the vehicle exit point clear of dusty materials.

11.1.28 The Contractor was advised to provide adequate watering regularly for exposed area for dust suppression.

11.1.29 The Contractor was advised to cover the exposed stockpile of dusty materials entirely with impervious sheeting for dust suppression.

Construction Noise Impact

11.1.30 Nil.

Water Quality Impact

11.1.31 The Contractor was advised to keep the intercepting channel clear of obstacle.

Chemical and Waste Management

11.1.32 The Contractor was advised to provide secondary containment for chemical container to prevent potential leakage.

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

Landscape and Visual Impact

11.1.34 Nil.

Miscellaneous

11.1.35 Nil.

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

11.3.3 One (1) Limit Level exceedance was recorded on 9 April 2018 for noise monitoring at M3. The exceedance at M3 is considered to be contributed from background noise, possibly traffic noise from Pak Wo Road and Fanling Highway. The exceedance was considered non-project-related.

11.3.4 One (1) noise-related complaint was received on 1 March 2018 and followed up by the Environmental Team. The full complaint investigation report is annexed in Appendix M of the Monthly EM&A Report for March 2018.