Issue and Revision Record

Revision

Date

Originator

Checker

Approver

Description

A

Apr 2018

Various

Gary Chow

Eric Ching

1st Draft to client and IEC

B

Jun 2018

Various

Gary Chow

Eric Ching

Final to client and IEC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Information class:

Standard

 

This document is issued for the party which commissioned it and for specific purposes connected with the above-captioned project only. It should not be relied upon by any other party or used for any other purpose.

We accept no responsibility for the consequences of this document being relied upon by any other party, or being used for any other purpose, or containing any error or omission which is due to an error or omission in data supplied to us by other parties.

This document contains confidential information and proprietary intellectual property. It should not be shown to other parties without consent from us and from the party which commissioned it.

This report has been prepared solely for use by the party which commissioned it (the ‘Client’) in connection with the captioned project. It should not be used for any other purpose. No person other than the Client or any party who has expressly agreed terms of reliance with us (the ‘Recipient(s)’) may rely on the content, information or any views expressed in the report. We accept no duty of care, responsibility or liability to any other recipient of this document. This report is confidential and contains proprietary intellectual property.

No representation, warranty or undertaking, express or implied, is made and no responsibility or liability is accepted by us to any party other than the Client or any Recipient(s), as to the accuracy or completeness of the information contained in this report. For the avoidance of doubt this report does not in any way purport to include any legal, insurance or financial advice or opinion.

We disclaim all and any liability whether arising in tort or contract or otherwise which it might otherwise have to any party other than the Client or the Recipient(s), in respect of this report, or any information attributed to it.

We accept no responsibility for any error or omission in the report which is due to an error or omission in data, information or statements supplied to us by other parties including the client (‘Data’). We have not independently verified such Data and have assumed it to be accurate, complete, reliable and current as of the date of such information.

Forecasts presented in this document were prepared using Data and the report is dependent or based on Data. Inevitably, some of the assumptions used to develop the forecasts will not be realised and unanticipated events and circumstances may occur. Consequently Mott MacDonald does not guarantee or warrant the conclusions contained in the report as there are likely to be differences between the forecasts and the actual results and those differences may be material. While we consider that the information and opinions given in this report are sound all parties must rely on their own skill and judgement when making use of it.

Under no circumstances may this report or any extract or summary thereof be used in connection with any public or private securities offering including any related memorandum or prospectus for any securities offering or stock exchange listing or announcement.

 

Contents

Executive Summary                                                                                                         

1      Introduction                                                                                                                

1.1    Project Background                                                                                                

2      Project Organization                                                                                                 

2.1    Project Organization                                                                                               

2.2    Construction Progress                                                                                            

2.3    Summary of Environmental Submissions                                                                 

3      Summary of Environmental Monitoring and Audit Requirements                     

3.1    General                                                                                                                 

3.2    Monitoring Locations                                                                                              

3.3    Derivation of Action/Limit Levels                                                                             

3.4    Meteorological Information                                                                                      

4      Construction Noise Monitoring                                                                               

4.1    Monitoring Results                                                                                                 

5      Ecology Monitoring                                                                                                   

5.1    Inspection Findings                                                                                                

5.2    Conclusion                                                                                                            

6      Landscape and Visual Monitoring                                                                          

6.1    Inspection Findings                                                                                                

7      Waste Management                                                                                                 

7.1    Record of Waste Quantities                                                                                    

8      Site Inspection                                                                                                           

8.1    Inspection Findings                                                                                                

9      Summary of Environmental Quality Performance Limits                                   

9.1    Record on Non-compliance of Action and Limit Levels                                              

9.2    Record on Environmental Complaints Received                                                       

10    Implementation Status of Mitigation Measures                                                    

10.1  General Requirements                                                                                           

11    Conclusions and Recommendations                                                                     

11.1  Conclusions                                                                                                           

11.2  Recommendations                                                                                                 

Appendices                                                                                                                        

A.    Layout Plan of the Project                                                                                       

B.    Project Organization                                                                                                 

C.    Designated Monitoring Locations as Recommended in the Approved EM&A Manual           

D.    Actual Locations of Impact Monitoring                                                                  

E.    Meteorological Data                                                                                                 

F.     Noise Monitoring Data                                                                                             

G.    Graphical Plots of Noise Monitoring Data                                                            

H.    Implementation Schedule for Environmental Mitigation Measures                  

 

 

Tables

Table 1: Status of Environmental Licenses and Permits of the Project 7

Table 2: Summary of Impact EM&A Requirements  9

Table 3: Impact Monitoring Stations for Construction Noise  10

Table 4: Action and Limit Levels for Construction Noise  10

Table 5: Summary of Construction Noise Monitoring Results  12

Table 6: Summary of Quantities of Inert C&D Materials  17

Table 7: Summary of Quantities of Non-inert C&D Materials  17

Table 8: Site Observations of the Project 18

Table 9: Environmental Mitigation Measures  21

 

 

 

 

 

 

 

 

 

 


Executive Summary

Mott MacDonald Hong Kong Ltd. (“MMHK”) has been commissioned by the Gammon Engineering & Construction Company Limited, to undertake the Environmental Team (ET) services to carry out environmental monitoring and audit (EM&A) for Ocean Park Tai Shue Wan Development Water World.

This is the 3rd Quarterly EM&A Summary report for the Tai Shue Wan Development Water World under Section 11.4 of the EM&A Manual (Register No.: AEIAR-184/2014). This report summarises the findings on EM&A during the period from 1 December 2017 to 28 February 2018.

Environmental Monitoring and Audit Activities

Environmental monitoring activities under the EM&A programme in the Reporting Period are summarized in the following table:

Environmental Aspect

Environmental Monitoring Parameters / Inspection

Total Occasions

Construction Noise

Leq(30min) Daytime

26

Ecology

Site Inspection

4

Landscape and Visual

Inspection of the mitigation measures implementation situation

6

Site Inspection / Audit

Environmental Team (ET), the Contractor and Project Management Representative (PMR) joint site inspection and auditing

13

Independent Environmental Checker (IEC) joint site inspection and auditing

3

 

Breaches of Action/Limit Levels

No noise complaints (i.e. Action level) were received in the Reporting Period. No exceedance of construction noise measurement and no Notifications of Exceedances (NOEs) were issued to the PMR, IEC and the Contractor. The statistics of environmental exceedance, NOE issued and investigation of exceedance are summarized in the following table:

Environmental Aspect

Monitoring Parameter

Action Level

Limit Level

Event & Action

NOE Issued

Investigation

Corrective Actions

Construction Noise

Leq(30min) Daytime

0

0

0

0

0

 

Environmental Complaints

There was no record of complaints received in the Reporting Period.

Notification of Summons and Successful Prosecutions

There was no record of notification of summons and successful prosecution in the Reporting Period.

 

Reporting Changes

There are no reporting changes.

Future Key Issues

The contractor should pay attention to the following environmental issues and maintain relevant mitigation measures:

    Site formation for ride footing construction

    Cut soil slope and soil nail installation for Ride P1, P2, P3, P4 and P5

    Rock breaking and slope stabilization works for Ride P1 to P5 

    Construction of drainage channels to slopes

    Mini pile construction

    Utilities diversion at A4

    Drainage works at PJD office

    Skin wall construction for Tress boulder at entrance

    North Plant Room: East substation walls and double slab and L1 HL falsework, formwork, rebar, and casting.

    North Plant Room: Build walls and L1 HL slab. Construction on–grade at G.L. 1-4 and L1 HL slab.

    L2 Slab at Area 10E4: Construct remaining columns below L2, falsework, formwork, and rebar for Level 2 slab. Cast concrete.

    L3 slab at Area 10E4: falsework, formwork, and rebar for Level 3 slab. Cast concrete.

    L2 to L3 columns at Area 10E4: column, rebar, shutter, and casting of columns.

    Main Building: L1 and L2 slab, column and wall construction, L1 Zone 6 on grade slab, Steel deck along GL 10 – 15 for roof construction, ABWF. 

    South Plant Room: Backfilling for B1 on grade slab, B1 on grade slab, L1 slab and wall construction, L1 roof slab waterproofing, ABWF works

    Level B1: Drainage works and on-grade slab construction

    South Transformer Room: Wall and slab construction, waterproof, duradeck installation, ABWF

1        Introduction

1.1      Project Background

On 27 August 2014, the Environment Impact Assessment (EIA) Report and Environmental Monitoring and Audit (EM&A) Manual (Register No.: AEIAR-184/2014) for the “Tai Shue Wan Development at Ocean Park” (the Project) was approved and an Environmental Permit (EP) (Permit No.: EP-487/2014) was issued to the Ocean Park Corporation (Project Proponent).

The current valid EP (Permit No.: EP-487/2014/A) was issued on 10 January 2018 based on the Variation of Environmental Permit No. VEP-539/2017 which comprise variation of project boundary, location of sump pit and size of rising main. The layout plan of the Project is indicated in Appendix A.

Mott MacDonald Hong Kong Ltd. (“MMHK”) has been commissioned by Gammon Engineering & Construction Company Limited to undertake the Environmental Team (ET) services to carry out environmental monitoring and audit for the Ocean Park Tai Shue Wan Water World Project.

As part of the EM&A program, baseline monitoring for the required parameters including background noise, landscape & visual baseline review and baseline ardeid inspection were carried out between 24 October 2014 and 10 December 2014 by the environmental consultants of Ocean Park Corporation. Furthermore, the baseline monitoring report which was verified by the previous IEC was submitted to EPD and endorsed in December 2014.

The previous contract (Contract No.: TSW-C004) of Site Formation and Foundation Works has been completed since 31 May 2017 and the next construction phase (Contract No.: TSW-C006) for the Ocean Park Tai Shue Wan Development was handed over to Gammon Engineering & Construction Company Limited on 31 May 2017.

This report summarizes the findings during the Reporting Period from 1 December 2017 to 28 February 2018.

2        Project Organization

2.1      Project Organization

The project organization is shown in Appendix B.  The responsibilities of respective parties are as follows: 

Ocean Park Corporation 

Ocean Park Corporation is the Project Proponent and the Permit Holder of the EP for the development of the Project and will assume overall responsibility for the project.  An Independent Environmental Checker (IEC) shall be employed by Ocean Park Corporation to audit the results of the EM&A works carried out by the ET. 

Environmental Protection Department (EPD) 

EPD is the statutory enforcement body for environmental protection matters in Hong Kong.

Project Management Representative (PMR) of Ocean Park Corporation 

The PMR is responsible for overseeing the construction works and for ensuring that the works are undertaken by the Contractor in accordance with the specification and contract requirements. The duties and responsibilities of the ER with respect to EM&A are: 

    Monitor the Contractors’ compliance with contract specifications, including the implementation and operation of the environmental mitigation measures and their effectiveness 

    Monitor Contractor’s, ET’s and IEC’s compliance with the requirements in the Environmental Permit (EP) and EM&A Manual 

    Facilitate ET’s implementation of the EM&A programme  

    Participate in joint site inspection by the ET and IEC  

    Oversee the implementation of the agreed Event / Action Plan in the event of any exceedance 

    Adhere to the procedures for carrying out complaint investigation  

    Liaison with the related government departments, ET, IEC, the Contractor and the other 

    Contractors of the Project discussing regarding the cumulative impact issues.  

The Contractor 

The duties and responsibilities of the Contractor are: 

    Comply with the relevant contract conditions and specifications on environmental protection  

    Employ an Environmental Team (ET) to undertake monitoring, and reporting of EM&A Facilitate ET’s monitoring and site inspection activities  

    Participate in the site inspections by the ET and IEC, and undertake any corrective actions  

    Provide information / advice to the ET regarding works programme and activities which may contribute to the generation of adverse environmental impacts  

    Submit proposals on mitigation measures in case of exceedances of Action and Limit levels in accordance with the Event / Action Plans  

    Implement measures to reduce impact where Action and Limit levels are exceeded 

    Adhere to the procedures for carrying out complaint investigation  

Environmental Team (ET) 

The ET should be employed by the Contractor to conduct the EM&A programme. The ET should be managed by the ET Leader.  ET Leader should have relevant professional qualifications in environmental control and possess at least 7 years’ experience in EM&A. Suitably qualified professional and technical staff should be included in the ET, and resources for the implementation of the EM&A programme should be allocated in the time under the Contract, to enable fulfilment of the Project’s EM&A requirements as specified in the EM&A Manual during construction of the Project. The ET shall include qualified botanist/ecologist for the ecological service and a Registered Landscape Architect for review of implementation of landscape and visual mitigation measures. The ET should report to the OPC and the duties should include:

    to monitor and audit various environmental parameters as required in the Approved EM&A Manual; 

    to analyze the EM&A data, review the success of EM&A programme and the adequacy of mitigation measures implemented, confirm the validity of the EIA predictions and identify any adverse environmental impacts arising; 

    to monitor compliance with conditions in the EP, environmental protection, pollution prevention and control regulations and contract specifications; 

    to audit environmental conditions on site; 

    to report on the EM&A results to EPD, the ER, the IEC and Contractor or their delegated representatives; 

    to recommend suitable mitigation measures to the Contractor in the case of exceedance of Action and Limit levels in accordance with the Event and Action Plans; 

    to liaise with the IEC on all environmental performance matters, and ensure timely submission of all relevant EM&A pro forma for IEC’s approval; 

    to provide advice to the Contractor on environmental improvement, awareness and enhancement matters etc. on site; 

    to adhere to the procedures for carrying out complaint investigation; 

    to prepare reports on the environmental monitoring data and the site environmental 
conditions; 

    to submit the EM&A report to Director of Environmental Protection (DEP) timely; 

    to review proposals of mitigation measures from the Contractor in case of exceedance of Action and Limit levels, in accordance with the Event and Action Plan; and 

    to carry out site inspection to investigate and audit the Contractor’s site practice, equipment and work methodologies with respect to pollution control and mitigation measures.

 

Independent Environmental Checker (IEC)   

    The IEC is empowered to audit the environmental performance of construction, but is independent from the management of construction works.  As such, the IEC should not be in any way an associated body of the Contractor or the ET for the Project.  The IEC should be 
employed by OPC prior to the commencement of the construction of the Project.  The IEC 
should be a person who has relevant professional qualifications in environmental control and at least 7 years’ experience in EM&A and environmental management. The duties and 
responsibilities of the IEC are: 

    to provide proactive advice to the ER and OPC on EM&A matters related to the project; 

    to review and verify the monitoring data and all submissions in connection with the EP and EM&A Manual submitted by the ET; 

    to arrange and conduct regular, at least monthly site inspections of the works during the construction phase, and to carry out ad hoc inspections if significant environmental problems 
are identified; 

    to check compliance with the agreed Event and Action Plan in the event of any exceedance; 

    to check compliance with the procedures for carrying out complaint investigation; 

    to check the effectiveness of corrective measures; 

    to feedback audit results to the ET by signing off relevant EM&A pro forma; 

    to check that mitigation measures are effectively implemented; 

    to report the works conducted, and the findings, recommendations and improvements of the site inspections, after reviewing ET’s and Contractor’s works, the ER and OPC on a monthly basis; 

    to verify the investigation result of the environmental complaint cases and the effectiveness of corrective measures; 

    to verify EM&A report that has been certified by ET leader; and 

    to audit EIA recommendations and requirements against the status of implementation of environmental mitigation measures on site.

 

2.2      Construction Progress

During the Reporting Period, works of the Project undertaken include:

    Site formation for ride footing construction

    Cut soil slope and soil nail installation for Ride P1, P2, P3, P4 and P5

    Rock breaking and slope stabilization works for Ride P1 to P5 

    Construction of drainage channels to slopes

    Mini pile construction

    North Plant Room Formation: HKE Substation On-grade slab and cable trench excavation and on-grade slab construction. Cart away excavated rock materials.

    North Plant Room and L2 slab (10E4): Column construction, install concrete block retaining wall to form ground for falsework erection, L2 slab falsework erection, formwork, rebar, concreting.

    Zone 3 Foundation at L2: Formwork, rebar, rock excavation and mucking out, rock mapping inspection, cast concrete blinding, construct footings

    Rising Main Soil Nail Installation

    North Plant Room: HKE West Substation on-grade slab formwork, rebar, and casting, East substation walls and double slab and L1 HL falsework, formwork, rebar, and casting.

    North Plant Room: Backfilling G.L. 7-9 for on-grade slab of generator plant room, construction on-grade slab, build walls and L1 HL slab.

    L2 Slab at Area 10E4: Construct remaining columns below L2, falsework, formwork, and rebar for Level 2 slab. Cast concrete.

    L2 to L3 columns at Area 10E4: column, rebar, shutter, and casting of columns.

    B1 and L1 underground manholes and drainage

    L1 zone 6 on grade slab

    Core wall

    L1 and L2 slab and column construction / L2-L3 Column construction

    Block wall construction at L1

    Balustrade installation at L2

    L2 Slab at Area 10E4: Construct remaining columns below L2, falsework, formwork, and rebar for Level 2 slab. Cast concrete.

    L2 to L3 columns at Area 10E4: column, rebar, shutter, and casting of columns.

    South Plant Room: Backfilling for B1 on grade slab, B1 on grade slab, L1 slab and wall construction, L1 roof slab waterproofing, EVA portal frame dismantling.

    Main Building: L1 and L2 slab, column and wall construction, L1 Zone 6 on grade slab, Steel ramp for haul road, EVA portal frame dismantling, B1 underground manhole and drainage

 

2.3      Summary of Environmental Submissions

Summaries of validity permits, licenses, and/or notifications on environmental protection for the Project are presented in Table 1.

Table 1: Status of Environmental Licenses and Permits of the Project

Type of Permit/ License 

Submission Date

Reference/ 

License No. 

Date of Issue 

 

Date of Expiry 

Status

Environmental Permit

/

EP-487/2014/A

10-Jan-18

N/A

Valid

Variation of Environmental Permit

18-Dec-17

VEP-539/2017

10-Jan-18

N/A

Valid

Environmental Permit

/

EP-487/2014

27-Aug-14

N/A

Superseded

Notification pursuant to Air Pollution Control (Construction Dust) Regulation

15-Mar-17

414651

N/A

N/A

Valid

Application for a Billing Account for Disposal of Construction Waste

14-Dec-16

Account No. 7026786

28-Dec-16

N/A

Valid

Discharge Licence under WPCO
WT00028196-2017

15-Mar-17

414650

29-May-17

31-May-22

Valid

Registration as a Chemical Waste Producer
(WPN: 5213-176-G2785-01)

21-Apr-17

415966

31-May-17

N/A

Completed

Construction Noise Permit under NCO
GW-RS0439-17

26-Apr-17

416080

15-May-17

29-Dec-17

Superseded

Construction Noise Permit under NCO

GW-RS0825-17

8-Sep-17

420985

22-Sep-17

21-Mar-18

Superseded

Renew Construction Noise Permit under NCO

GW-RS1024-17

3-Nov-17

422922

21-Nov-17

16-May-18

Valid

 

According to the EP stipulation, the required documents have been submitted to EPD for retention as listed below:

    Project Layout Plans 

    Management Organization of Main Construction Companies 

    Detailed Vegetation Survey Report 

    Woodland Compensation Plan 

    Ardeid Inspection Report 

    Short-nosed Fruit Bat Inspection Report 

    Baseline Monitoring Report Revision A of the Project

 

3        Summary of Environmental Monitoring and Audit Requirements

3.1      General

As specified in the approved EM&A Manual, environmental monitoring of construction noise, ecology, landscape and visual impacts as well as waste management are required. A summary of the monitoring parameters is presented in Table 2.

Table 2: Summary of Impact EM&A Requirements

Parameters

Description

Locations

Frequency

Construction Noise

Leq (30min) on normal working days

3 sets of consecutive Leq(5min) during restricted hours if construction is necessary

Supplementary information for data auditing, statistical results such as L10 and L90 shall also be obtained for reference

NM1A and NM2

Weekly

Normal working days: (07:00-19:00 except public holiday)

 

Restricted hours: 19:00 to 07:00 next day, and whole day of public holiday or Sunday only when construction is necessary

Ecology

   Monitoring of in-situ preservation of Platycodon grandifloras

   Inspection of ardeids nest during breeding season (April to July)

   Monitoring for ardeid night roost (November to March)

Project area and preservation area for Platycodon grandifloras

Once per month

   Inspection of enhancement area for ardeid roosting

An enhancement area provided as an alternative roosting site for ardeids should be developed during the first phase of the construction.

   Monitoring on woodland compensation

Mitigation measures recommended in the approved Woodland Compensation Plan should be fully and properly implemented, including but not limited to the creation of 0.84 ha woodland compensation on-site and 0.78 ha on-site woodland reinstatement, to mitigate for permanent loss of woodland habitat.

Landscape & Visual Impact

   Ensure no construction activities / storage are undertaken outside the project boundary

   Ensure landscaping works are carried out in accordance with the specifications

   Ensure new planting is carried out properly and during the right season

   Review progress of engineering works on site to identify the earliest practical opportunities for landscape works

 

Project site

Bi-weekly

Regular Site Inspection
Air, water, waste management

 

To review the environmental situation, and monitor the implementation of proper environmental protection and pollution control measures for the Project

Project site

Weekly

3.2      Monitoring Locations

Two designated noise monitoring locations as established in the EM&A Manual are shown in Appendix C.  After the baseline monitoring, alternative location NM1A was proposed by MMHK due to the rejection of the monitoring location set up at NM1. The proposal was verified and agreed by EPD in the Baseline Monitoring Report. The construction noise monitoring locations for the Project are shown in Table 3 and Appendix D.

Table 3: Impact Monitoring Stations for Construction Noise

 

Monitoring location

Descriptions

Type of measurement

NM1A

Slope near Victoria Shanghai Academy (VSA) to replace NM1 of the VSA

Free field

NM2

Hong Kong Juvenile Care Centre (HKJCC)

Facade

 

3.3      Derivation of Action/Limit Levels

The baseline results formed the basis for determining the environmental acceptance criteria for impact monitoring. According to the approved EM&A Manual and baseline monitoring results, the following construction noise criterion, namely Action and Limit levels listed in Table 4 were proposed:

Table 4: Action and Limit Levels for Construction Noise

Monitoring Location

Action Level

Limit Level in dB(A)

Time Period: 0700-1900 hours on normal weekdays

NM1A and NM2

When one or more documented complaints are received

70 dB(A)*

Note: Acceptable Noise Levels for school should be reduced to 65 dB(A) during examination period. If works are to be carried out during restricted hours, the conditions stipulated in the construction noise permit issued by the NCA must be followed.

3.4      Meteorological Information

Meteorological information including humidity, wind speed, wind direction, temperature and total rainfall was extracted from “the Hong Kong Observatory Wong Chuk Hang Station” to provide background weather information. The meteorological data for the Reporting Period is summarized in Appendix E.

 

4        Construction Noise Monitoring

4.1      Monitoring Results

Construction noise monitoring was conducted 26 times at the two designated locations in the Reporting Period. As shown in the summary of noise monitoring results in Table 5, no noise complaints were received in this Reporting Period and no exceedance of Action or Limit level in relation to construction noise was recorded.

Table 5: Summary of Construction Noise Monitoring Results

Monitoring Date

Time

Mean and range of noise levels, dB(A)

Limit Level for Leq (dB(A))2

Start

Finish

Leq (30min)

Corrected Leq(30min)1

NM1A

 

 

 

 

 

05-Dec-17

10:02

10:32

55.8

58.8

70

13-Dec-17

09:42

10:12

55.6

58.6

70

20-Dec-17

10:50

11:20

55.1

58.1

70

28-Dec-17

10:10

10:40

53.3

56.3

70

03-Jan-18

10:40

11:10

56.1

59.1

70

09-Jan-18

13:45

14:15

56.6

59.6

70

17-Jan-18

09:30

10:00

56.2

59.2

70

25-Jan-18

13:45

14:15

55.6

58.6

70

31-Jan-18

15:42

16:12

56.0

59.0

70

06-Feb-18

10:40

11:10

54.7

57.7

70

14-Feb-18

10:00

10:30

55.7

58.7

70

22-Feb-18

10:00

10:30

56.0

59.0

70

28-Feb-18

10:40

11:10

56.3

59.3

70

NM2

 

 

 

 

 

05-Dec-17

09:20

09:50

52.6

-

70

13-Dec-17

09:00

09:30

52.3

-

70

20-Dec-17

10:10

10:40

52.1

-

70

28-Dec-17

09:30

10:00

51.3

-

70

03-Jan-18

09:30

10:00

51.3

-

70

09-Jan-18

14:30

15:00

53.4

-

70

17-Jan-18

08:50

09:20

52.5

-

70

25-Jan-18

14:30

15:00

52.7

-

70

31-Jan-18

15:00

15:30

52.6

-

70

06-Feb-18

10:00

10:30

52.7

-

70

14-Feb-18

09:20

09:50

51.9

-

70

22-Feb-18

09:20

09:50

52.2

-

70

28-Feb-18

10:00

10:30

52.9

-

70

Note:      1. A correction of +3 dB(A) was made to the free field measurement at monitoring station NM1A.
2. No examination has taken place in this Reporting Period.

A summary of data and the supplementary data auditing information are shown in Appendix F. Graphical plots of the monitoring data are shown in Appendix G.

5        Ecology Monitoring

5.1      Inspection Findings

The ecological inspections were undertaken on 15 December 2017, 12 January, 15 and 27 February 2018 by the qualified ecologist. The inspection findings are presented below.

Plants of Conservation Interest (Platycondon grandiflorus)

Platycodon grandiflorus is a perennial herb up to 120 cm high. Stems erect and scarcely any branches. It is often found on sunny grassy hillslopes in brushes. Two groups of Platycodon grandiflorus were recorded in 2015’s growing season within the fenced area.

Wilting was observed on Platycodon grandiflorus during Reporting Period. On the other hand, the preventive mitigation measures, i.e., erecting of temporary protective fencing and sign post, were found to be effectively implemented for human disturbance, and there are no signs or evidence (e.g. dust coating of plant) to prove that the on-going construction activities within the project area has affected the health condition of the Platycodon grandiflorus. The stem wilting after flowering is part of the natural life cycle of this perennial herbaceous species, and new shoots would be expected to emerge from the underground part in the next growing season.

Nesting Activities of Ardeids in Breeding Season

This monitoring parameter is only required during the breeding season of ardeids, i.e., from April to July. The last monitoring event for nesting activities of Ardeids in the 2017’s breeding season was undertaken on 21 July 2017, and such monitoring would not be required for the Reporting Period.

Roosting Activities of Ardeids in Peak Wintering Season

According to the Approved EM&A Manual, monitoring of roosting activities of Ardeids within the project area should perform once a month during peak wintering season (November to March) during the construction phase.

Monitoring of roosting activities of Ardeids was carried out by direct observation at vantage point on 15 December 2017, 12 January 2018 and 27 February 2018, and covered the evening from an hour before sunset to last until nightfall.

One Black-crowned Night Heron was observed in the vicinity of the project area on 12 January 2018. The Black-crowned Night Heron was observed flying from Sham Wan and foraging at the artificial shore in Tai Shue Wan. However, no roosting activities were identified during the monitoring.

Compensation for Ardeid roosting Site

To be implemented.

Compensation of Woodland Habitat 

To be implemented.

5.2      Conclusion

The implementation of the mitigation measures for the plant species of conservation interest, i.e., erecting of temporary protective fencing and sign post during the Reporting Period was noted. Wilting was observed on Platycodon grandiflorus, the stem wilting after flowering is part of the natural life cycle of this perennial herbaceous species, and new shoots would be expected to emerge from the underground part in the next growing season.

Roosting activities of ardeids was not observed within the project area during the monitoring.

6        Landscape and Visual Monitoring

6.1      Inspection Findings

In the Reporting Period, bi-weekly landscape and visual site inspection were conducted on 8, 22 December 2017, 5, 19 January 2018 and 9, 23 February 2018.

According to the bi-weekly site inspections, it was observed that the Contractor complied with the intended aims of the mitigation measures. For example, construction activities were not conducted and materials storage were not placed outside of the working site boundary. The Contractor was advised to improve and maintain the tree protection zone.

The Contractor was advised to maintain the tidiness and carry out regular weeding in the tree protection zone.

7        Waste Management

7.1      Record of Waste Quantities

The quantity of waste for disposal in this Reporting Period is summarized in Table 6 and Table 7.

Table 6: Summary of Quantities of Inert C&D Materials

Type of Waste

Quantity (tonne)

Total Generated C&D Materials

Total Disposal as Public Fill

Total Reused

December 2017

5881.38

3970.50

1910.88

January 2018

7573.16

6919.16

654.00

February 2018

6413.22

5913.22

500.00

Total

19867.76

16802.88

3064.88

Table 7: Summary of Quantities of Non-inert C&D Materials

Type of Waste

Quantity (tonne)

 

Recycled
Metal

Recycled Paper / Cardboard Packing

Recycled Plastic

Disposed Chemical Wastes

Disposed General Refuses

December 2017

0.00

189.00

0.00

0.00

65.60

January 2018

74670.00

0.00

0.00

0.00

134.96

February 2018

0.00

91.00

0.00

0.00

95.61

Total

74670.00

280.00

0.00

0.00

296.17

 

8        Site Inspection

8.1        Inspection Findings

In the Reporting Period, joint site inspections were undertaken by the PMR, ET and the Contractor on 1, 8, 15, 22 and 29 December 2017, and 5, 12, 19 and 26 January 2018 as well as 2, 9, 15 and 23 February 2018. Furthermore, site inspection and audit were performed by the IEC on 15 December 2017, 12 January and 15 February 2018.  During the site inspections, non-compliance was not observed by ET and IEC. The site observations for the Reporting Period is summarized in Table 8.

Table 8: Site Observations of the Project

Reporting Period

Findings / Deficiencies

December 2017

   Broken water barrier should be replaced to avoid mosquito breeding.

   Drip tray should be provided for chemical container to prevent potential leakage.

   Water spraying should be increased in the south plant room.

   Stagnant water should be cleared in the south plant room.

   Dust control measures should be enforced during the material transfer.

   Dust control measures should be enforced in EVA and rising main.

 

   Maintain site cleanliness and tidiness should be undertaken especially in clothes drying area and building inside.

 

   Muddy trail at EVA was observed, the contractor was reminded to clear it properly and ensure no surface runoff to the drainage nearby.

January 2018

   Muddy trail at EVA was observed, the contractor was reminded to clear properly.

   Oil stain at EVA was observed, the contractor was reminded to clear and ensure no accidental spillage.

   Drip tray should be provided for chemical container to prevent chemical leakage at L3, Level 3.

   Stagnant water should be cleared to maintain tidiness in L3, Level 1.

February 2018

   Water accumulated in drip tray under the electric generator at the EVA and under chemical containers near Tower Crane 2 (TC2) should be cleared.

   Oil stains observed at core zero should be cleared.

   Drip tray should be provided for chemical container.

   Appropriate chemical labels and drip trays should be provided for chemical containers at EVA and Zone B haul road.

   Open slope and stockpile should be covered before holiday.

   Contractor is reminded to remove stagnant water regularly to avoid mosquito breeding.

   Stagnant water at south transformer room in Area B should be cleared to prevent mosquito breeding.

 

9        Summary of Environmental Quality Performance Limits

9.1      Record on Non-compliance of Action and Limit Levels

No exceedances of Action level or Limit levels were observed for construction noise during the Reporting Period. 

9.2      Record on Environmental Complaints Received

No environmental complaints were received during the Reporting Period.

10   Implementation Status of Mitigation Measures

10.1     General Requirements

The environmental mitigation measures that were recommended in the Implementation Schedule for Environmental Mitigation Measures in the approved EM&A Manual covered the issues of dust, noise, water and waste and are presented in Appendix H.   

Environmental mitigation measures generally implemented by the contractor are listed in Table 9.

Table 9: Environmental Mitigation Measures

Issues

Environmental Mitigation Measures

Construction 
Noise 

     Construction equipment is shut down when not in use

Ecology

     Wire fencing was provided for temporary protection of the identified flora species of conservation concern 

     Site inspection of the flora species of conservation and the Ardeid breeding and nesting activities was undertaken

Landscape & Visual

     Good site management

Air Quality

     Good site management to reduce air quality impact 

     Main temporary access road paved with concrete 

     Prior to any loading or transfer operation, all dusty materials were sprayed with water to keep them wet 

     All debris had been covered entirely by impervious sheeting 

     Before debris was dumped into a chute, water was sprayed onto the debris to make them wet 

     Vehicles were covered with tarpaulin during transport of dusty materials 

     When vehicles were leaving the construction site, any vehicles loaded with dusty materials were covered with clean impervious sheeting to prevent fugitive dusty material emission 

     The speed of the trucks passing site areas was controlled to below 10 km/hour 

     Water spraying was provided for soil-nailing work 

Water Quality

     Portable chemical toilets were provided on site

     A licensed collector has been employed to collect effluent and off-site dispose. 

Waste and Chemical Management

     A temporary container located far away from sea shore and drainage channel was provided for chemical materials and waste storage 

     Drip tray was provided for chemical materials at the working areas

     Waste skip was provided for general refuse disposal 

General

     The site was generally kept tidy and clean

 

 

11   Conclusions and Recommendations

11.1    Conclusions

The EM&A programme as recommended in the EM&A manual has been undertaken in the Reporting Period.

Monitoring of construction noise, ecology, landscape and visual, as well as waste management for the Project were conducted as scheduled in the Reporting Period. Data collected during construction noise monitoring were checked against the established Action and Limit levels and no exceedances were recorded.

For ecological monitoring, the implementation of the mitigation measures for the plant species of conservation interest, i.e., erecting of temporary protective fencing and sign post during the Reporting Period was noted. Wilting was observed on Platycodon grandiflorus, the stem wilting after flowering is part of the natural life cycle of this perennial herbaceous species, and new shoots would expect to emerge from the underground part in the next growing season.

Roosting activities of ardeids were not observed within the project area during the monitoring.

For landscape and visual monitoring, the Contractor was advised to maintain the tidiness, carry out regular weeding in the tree protection zone.

11.2    Recommendations

With considerations on the construction activities and environment, the following reminders and recommendations were provided:

    Dust mitigation measures for potential fugitive dust impact should be implemented in dry season.

    Noise mitigation measures, including the use of quiet plants, should be implemented in accordance with the EM&A requirement.

    Close monitoring of Platycodon grandiflorus will be necessary to track their condition.

    Cleanliness and tidiness in construction site should be enhanced.