Job No.: TCS00881/18 & TCS00944/18

 

 

 

 

 

 

 

 

 

Site Formation and Associated Infrastructural Works for Development of Columbarium, Crematorium and Related Facilities at Sandy Ridge Cemetery

 

 

 

 

 

 

 

 

 

Monthly Environmental Monitoring and Audit Report (No.24) ¡V July 2020

 

 

 

 

 

 

 

 

Prepared For

 

 

 

 

Hsin Chong Tsun Yip Joint Venture &

Sang Hing Civil Contractors Co., Ltd

 

 

 

 

 

 

 

 

 

 

 

 

Date

Reference No.

Prepared By

Certified By

12 August 2020

TCS00881/18/600/R0449v2

Nicola Hon

(Environmental Consultant)

Tam Tak Wing

(Environmental Team Leader)

 

Version

Date

Remarks

1

7 August 2020

First Submission

2

12 August 2020

Amended according to the IEC¡¦s comments on 11 August 2020

 

 

 

 

 

 

 


 

 

 

 

executive summary

ES.01.        This is the 24th Monthly Environmental Monitoring and Audit (EM&A) Report summarizing the monitoring results and inspection findings under the Project for the period from 1st to 31st July 2020 (the Reporting Month).

 

Environmental Monitoring and Audit Activities

ES.02.        In the Reporting Month, the major construction works under the Project included Contract CV/2016/10 (hereinafter named ¡§Contract 1¡¨) and Contract CV/2017/02 (hereinafter named ¡§Contract 2¡¨).  Environmental monitoring activities under the EM&A programme in this Reporting Month are summarized in the following table.

Table ES-1        Summary of EM&A Programme in the Reporting Month

Issues

Environmental Monitoring Parameters / Inspection

Monitoring Locations

Total Occasions

CV/2016/10

CV/2017/02

Air Quality

1-hour TSP

ASR-1

ASR-2

ASR-3

45

24-hour TSP

15

Construction Noise

Leq (30min) Daytime

CN-1

CN-2

CN-3

CN-4

16

Water Quality

In-situ measurement and Water sampling

M3

M1, M2 and M4

14

Ecology

Sensitive Habitat

Transect within site area of CV/2016/10

Transect within site area of CV/2017/02

1

Landscape & Visual

Site Inspection

Site area of CV/2016/10

Site area of CV/2017/02

1

Inspection & Audit

Environmental Team (ET)  Regular Environmental Site Inspection

Site area of CV/2016/10

Site area of CV/2017/02

5

Independent Environmental Checker (IEC)  Monthly Environmental Site Audit

1

 

Breach of Action and Limit (A/L) Levels

ES.03.        In the Reporting Month, no exceedance of air quality, noise monitoring was recorded.  However, for water quality monitoring, 7 Limit Level non-project related exceedances were recorded.  The statistics of environmental exceedance, Notification of Exceedance (NOE) issued and investigation of exceedance are summarized in the following table.

 

Table ES-2        Breach of Action and Limit (A/L) Levels in the Reporting Month

Environmental Issues

Monitoring Parameters

Action Level

Limit Level

Event & Action

Investigation Findings

Corrective Actions

Air Quality

1-hour TSP

0

0

-

-

24-hour TSP

0

0

-

-

Construction Noise

Leq30min Daytime

0

0

-

-

Water Quality

DO

0

0

Not project related

-

Turbidity

0

3

Not project related

--

SS

0

4

Not project related

--

Note:      NOE ¡V Notification of Exceedance

 

ES.04.        Monthly ecological monitoring for sensitive habitat for area of Contract 1 and Contract 2 were undertaken on 7th July 2020.  As advised by both Contractors, there were no vegetation clearance conducted within the site in the Reporting Month and therefore precautionary check for the presence of nesting birds was not required.

 

ES.05.        Landscape and visual inspection at both Contracts were undertaken on 21st July 2020.  The Contractor was reminded to prevent the construction material pile within Tree Protection Zone (TPZ) and ensure no works is allowed within the TPZ.

 

ENVIRONMENTAL COMPLAINT

ES.06.        No environmental complaint was recorded or received in this Reporting Month.  The statistics of environmental complaint are summarized in the following table.

Table ES-3        Environmental Complaint Summaries in the Reporting Month

Reporting Month

Environmental Complaint Statistics

Frequency

Cumulative

Complaint Nature

1 ¡V 31 July 2020

Contract 1

0

0

NA

Contract 2

0

0

NA

 

ES.07.        In addition, no complaint and emergency event relating to violation of environmental legislation for illegal dumping and landfilling was received. 

 

Notification of Summons and Successful Prosecutions

ES.08.        No environmental summons or successful prosecution was recorded in this Reporting Month.  The statistics of summons or successful prosecutions are summarized in the following tables.

Table ES-4        Environmental Summons Summaries in the Reporting Month

Reporting Month

Environmental Summons Statistics

Frequency

Cumulative

Summons Nature

1 ¡V 31 July 2020

Contract 1

0

0

NA

Contract 2

0

0

NA

 

Table ES-5        Environmental Prosecution Summaries in the Reporting Month

Reporting Month

Environmental Prosecution Statistics

Frequency

Cumulative

Prosecution Nature

1 ¡V 31 July 2020

Contract 1

0

0

NA

Contract 2

0

0

NA

 

Reporting Change

ES.09.        No reporting change was made in the Reporting Month.

 

Site Inspection

ES.010.    In the Reporting Month, joint site inspections for Contract 1 to evaluate the site environmental performance were carried out by the Resident Engineer (RE), ET and the Contractor of the Contract 1 on 2nd, 9th, 16th, 23rd and 30th July 2020.  Moreover, joint site inspections for Contract 2 by the RE, ET and the Contractor of Contract 2 were carried out on 2nd, 9th, 16th, 23rd and 30th July 2020.  IEC attended the both Contract joint site inspection on 16th July 2020.  No non-compliance was noted during the site inspections.

 

Future Key Issues

ES.011.    During wet season, the Contractors are reminded to pay special attention on water quality mitigation measures and should fully implement the measures as recommended in the EM&A Manual, in particular to prevent surface runoff and other pollutants from flowing to local stream and Conservation Area.

 

ES.012.    Air quality mitigation measures such as wheel wash facilities, watering of haul roads, loose soil construction surface and covering of dusty materials with tarpaulin sheet should be implemented as far as practicable.

 

ES.013.    Construction noise mitigation measures such as use of movable noise barriers and Quality Powered Mechanical Equipment should be properly provided to reduce construction noise impact, where appropriate.

 

ES.014.    The Contractors should properly maintain the cleanliness and tidiness of the site.  In addition, mosquito control should be performed to prevent mosquito breeding on site.


Table of Contents

1.    Introduction   1

1.1            Project Background   1

1.2            Report Structure  2

2.    Project Organization and Construction progress  4

2.1            Construction Contract Packaging   4

2.2            Construction Progress  4

2.3            Summary of Environmental Submissions  4

2.4            Summary of Submission Under the Environmental Permit Requirements  5

3.    Summary of Impact Monitoring Requirement   7

3.1            General  7

3.2            Monitoring Parameters  7

3.3            Monitoring Locations  7

3.4            Monitoring Frequency and Period   9

3.5            Monitoring Equipment  9

3.6            Equipment Calibration   12

3.7            Data Management and Data QA/QC Control  12

3.8            Determination of Action/Limit (A/L) Levels  12

4.    Air Quality   14

4.1            Monitoring Results  14

4.2            Air Monitoring Exceedance  14

5.    Construction Noise   15

5.1            Monitoring Results  15

5.2            Noise Monitoring Exceedance  15

6.    Water Quality   16

6.1            Monitoring Results  16

6.2            Water Quality Monitoring Exceedance  17

7.    Ecology Monitoring   18

7.1            Requirement  18

7.2            Methodology   18

7.3            Ecological Monitoring Survey Findings (Contract 1) 19

7.4            Ecological Monitoring Survey Findings (Contract 2) 21

7.5            Measure for Protection of Nesting Bird   22

8.    Landscape and Visual   23

8.1            Requirement  23

8.2            Findings / Deficiencies During Site Inspection in the Reporting Month   23

9.    Waste Management   24

9.1            General Waste Management  24

9.2            Records of Waste Quantities  24

10.  Site Inspection   25

10.1          Requirement  25

10.2          Findings / Deficiencies During Site Inspection in the Reporting Month   25

11.  Environmental Complaint and Non-Compliance   27

11.1          Environmental Complaint, Summons and Prosecution   27

12.  Implementation Status of Mitigation Measures  28

12.1          General Requirements  28

12.2          Tentative Construction Activities in the Coming Month   28

12.3          Key Issues for the Coming Month   29

13.  Conclusions and Recommentations  30

13.1          Conclusions  30

13.2          Recommendations  30


List of TABLES

Table 2-1        Status of Environmental Licenses and Permits for Contract 1

Table 2-2        Status of Environmental Licenses and Permits for Contract 2

Table 2-3        Status of Submission as under FEP for Contract 1

Table 2-4        Status of Submission as under FEP for Contract 2

Table 3-1        Summary of EM&A Requirements

Table 3-2        Designated Air Quality Monitoring Location under the Project

Table 3-3        Designated Construction Noise Monitoring Location under the Project

Table 3-4        Designated Water Quality Monitoring Stations under the Project

Table 3-5        Air Quality Monitoring Equipment

Table 3-6        Noise Monitoring Equipment

Table 3-7        Water Quality Monitoring Equipment

Table 3-8        Action and Limit Levels for Air Quality Monitoring

Table 3-9        Action and Limit Levels for Construction Noise

Table 3-10      Action and Limit Levels for Water Quality

Table 4-1        Summary of Air Quality Monitoring Results at ASR-1 under Contract 1

Table 4-2        Summary of Air Quality Monitoring Results at ASR-2 under Contract 2

Table 4-3        Summary of Air Quality Monitoring Results at ASR-3a under Contract 2

Table 5-1        Summary of Construction Noise Monitoring Results under Contract 1

Table 5-2        Summary of Construction Noise Monitoring Results under Contract 2

Table 6-1        Summary of Water Quality Monitoring Results ¡V M3 under Contract 1

Table 6-2        Summary of Water Quality Monitoring Results (M1, M2 and M4) under Contract 2

Table 6-3        Summary of Field Measurements for Water Quality

Table 6-4        Action and Limit (A/L) Levels Exceedance Record

Table 6-5        Summary of Investigation of Water Quality Exceedance in the Reporting Month

Table 7-1        Action and Limit Levels for Wet Woodland Habitats Monitoring

Table 7-2        Action and Limit Levels for Non-Wet Woodland Habitats Monitoring

Table 7-3        Schedule of Faunal Surveys in each year During Construction Phase

Table 7-4        Result of Faunal Survey under Contract 1

Table 7-5        Result of Freshwater Communities Survey under Contract 1

Table 7-6        Result of Faunal Survey under Contract 2

Table 7-7        Result of Freshwater Communities Survey under Contract 2

Table 8-1        Landscape & Visual Inspection Finding for Contract 1

Table 8-2        Landscape & Visual Inspection Finding for Contract 2

Table 9-1        Summary of Quantities of Inert C&D Materials

Table 9-2        Summary of Quantities of C&D Wastes

Table 10-1      Site Observations for the Works of Contract 1

Table 10-2      Site Observations for the Works of Contract 2

Table 11-1      Statistical Summary of Environmental Complaints

Table 11-2      Statistical Summary of Environmental Summons

Table 11-3      Statistical Summary of Environmental Prosecution

Table 12-1      Environmental Mitigation Measures

 

 

 

List of Appendices

Appendix A    Layout Plan of the Project

Appendix B    Organization Structure and Contact Details of Relevant Parties

Appendix C   Three Months rolling Programme

Appendix D    Designated Monitoring Locations

Appendix E    Calibration Certificates of MONITORING EQUIPMENT and Laboratory Certificate

Appendix F     Event and Action Plan of Air Quality, Noise and Water Quality

Appendix G    Monitoring Schedules of the Reporting Month and Coming Month

Appendix H    Monitoring Data of 24-Hour TSP Air Quality, Noise and Water Quality

Appendix I     Graphical Plots of Air Quality, Noise and Water Quality

Appendix J     Meteorological Data of the Reporting Month

Appendix K    Ecological Survey Report

Appendix L    Landscape & Visual Inspection Checklist

Appendix M   Monthly Summary Waste Flow Table

Appendix N    Implementation Schedule for Environmental Mitigation Measures (ISEMM)

Appendix O    Implementation of Water Quality Mitigation Measures

 


1.      Introduction

1.1          Project Background

1.1.1        Civil Engineering and Development Department (CEDD) is the Project Proponent for the Project ¡§Site Formation and Associated Infrastructural Works for Development of Columbarium, Crematorium and Related Facilities at Sandy Ridge Cemetery¡¨.  The Project is a Designated Project to be implemented under Environmental Permit No. EP-534/2017/A and FEP-01/534/2017/A.  The layout plan of the Project is shown in Appendix A.  Major works to be executed under the Project shall include to the following:

A Designated Works under EP-534/2017/A

(i)        Site formation of about 8 hectares of land and associated drainage, sewerage and landscape works for development of Columbarium and Crematorium facilities at the Sandy Ridge Cemetery;

(ii)      Construction of a new road (about 600m) including a section of viaduct connecting the platform for Crematorium and Man Kam To Road and the pick-up/drop-off point at Man Kam To Road;

(iii)    Widening of about 900m of the existing Sha Ling Road;

(iv)    Widening of about 1.4km of the existing Lin Ma Hang Road; and

(v)      Improvement works to the existing barging point at Siu Lam

Non-Designated Works

(i)        Construction of a sewage detention tank complete with odour and septicity control mechanism;

(ii)      Construction of noise barriers along Sha Ling Road;

(iii)    Construction of a new Refuse Collection Point (RCP) near the junction between Man Kam To Road and Sha Ling Road;

(iv)    Landscaping works (including both hard and soft landscape works);

(v)      Associated tree felling, transplanting and compensatory planting works;

(vi)    Associated street lighting, street furniture and road marking, etc.; and

(vii)  Other works which are specified in PS of the Contract.

 

1.1.2        To facilitate the Project management, the Project works were separated into three Contracts to be executed which are described in below sub-sections.

 

1.1.3        Contract No. CV/2016/10 ¡V Site Formation and Associated Infrastructural Works for Development of Columbarium at Sandy Ridge Cemetery (hereinafter named ¡§Contract 1¡¨):-

Ÿ   Site formation of about 1.77 ha of land for the proposed pick-up and drop-off area for shuttle bus operation;

Ÿ   Upgrading of a section of 900m existing Sha Ling Road from 3m wide carriageway to 7.3m wide carriageway with footpath at both sides;

Ÿ   Construction of one EVA with a total length of about 160m;

Ÿ   Construction of noise barriers along Sha Ling Road;

Ÿ   Modification of junction between Man Kam To Road and Sha Ling Road;

Ÿ   Construction of a new pick up / drop off point at Man Kam To Road;

Ÿ   Relocation and construction of a new refuse collection point near junction between Man Kam To Road and Sha Ling Road;

Ÿ   Associated geotechnical works including cut and fill slopes, soil nailing works and retaining structures;

Ÿ   Associated drainage, sewerage and waterworks along Sha Ling Road; and

Ÿ   Associated landscaping works.

 

1.1.4        Contract No. CV/2017/02 ¡V Infrastructural Works at Man Kam To Road and Lin Ma Hang Road for Development of Columbarium at Sandy Ridge Cemetery (hereinafter named ¡§Contract 2¡¨):-

Ÿ   Construction of a new road connecting Columbarium site to Crematorium site;

Ÿ   Construction of one EVA with a total length of about 300m;

Ÿ   Widening of a section of 1.4 km long Lin Ma Hang Road (between Man Kam To Road and Ping Yuen River) from 6m wide carriageway to 7.3m with 2m width footpath on both sides;

Ÿ   Provision of a pair of lay-by at Lin Ma Hang Road;

Ÿ   Construction of a new vehicular access connecting the Sheung Shui Landmark North PTI and Lung Sum Avenue;

Ÿ   Construction of covered walkway along Fanling Station Road;

Ÿ   Removal of planters and central divider along Fanling Station Road and San Wan Road;

Ÿ   Associated drainage, sewerage, waterworks and utility works along Man Kam To Road and Lin Ma Hang Road;

Ÿ   Associated geotechnical works including cut and fill slopes, soil nailing works and retaining structures; and

Ÿ   Associated landscaping works.

 

1.1.5        CEDD Contract No. (to be confirmed):-

Ÿ   Site Formation for the platform of the columbarium site;

Ÿ   Construction of two 2 at-grade access roads;

Ÿ   Construction of road junction between Man Kam To Road and the new access road;

Ÿ   Associated drainage, sewerage and waterworks along the two new access roads;

Ÿ   Associated geotechnical works including cut and fill slopes, soil nailing works and retaining structures; and

Ÿ   Associated landscaping works

 

1.1.6        Hsin Chong Tsun Yip Joint Venture (hereafter referred as ¡§HCTYJV¡¨) has been awarded Contract 1 on 5 December 2017.  According to the Contract requirement, HCTYJV shall take over the responsibility for part of the Environmental Permit No. EP-534/2017 for ease of management, therefore application for Further Environmental Permit was submitted by HCTYJV to EPD on 26 January 2018 and Further Environmental Permit No. FEP-01/534/2017 was granted to HCTYJV by EPD on 23 February 2018.  Furthermore, EPD issued Environmental Permit No. FEP-01/534/2017/A on 24 December 2018.

 

1.1.7        Sang Hing Civil Contractors Company Limited (hereinafter referred as ¡§Sang Hing¡¨) was awarded Contract 2 on 23 May 2018. The Contract Works is a Designated Project as under Environmental Permit (EP) No. EP-534/2017.  Furthermore, EPD issued Environmental Permit No. EP-534/2017/A on 24 December 2018.

 

1.1.8        Action-United Environmental Services & Consulting (AUES) has been commissioned by the Contractors as an Environmental Team (ET) to implement the Environmental Monitoring and Audit (EM&A) programme in accordance with the approved EM&A Manual as well as the associated duties.  As part of the EM&A programme, baseline monitoring to determine the ambient environmental conditions was completed before construction work commencement.  The Baseline Monitoring Report (air, noise and water) certified by ET Leader (ETL) and verified by Independent Environmental Checker (IEC) was submitted to Environmental Protection Department (EPD) and it was approved by EPD on 25 October 2018.

 

1.1.9        Major construction work of Contract 1 and Contract 2 was commenced on 16 August 2018 and 5 November 2018 respectively.

 

1.1.10    This is the 24th Monthly EM&A Report summarizing the monitoring results and inspection findings for the period from 1st to 31st July 2020.

 

1.2          Report Structure

1.2.1        The Monthly EM&A Report is structured into the following sections:-

Section 1       Introduction

Section 2       Project Organization and Construction Progress

Section 3       Summary of Monitoring Requirements

Section 4       Air Quality Monitoring Results

Section 5       Noise Monitoring Results

Section 6       Water Quality Monitoring Results

Section 7       Ecology Monitoring Results

Section 8       Landscape & Visual

Section 9       Waste Management

Section 10     Site Inspections

Section 11     Environmental Complaints and Non-Compliance

Section 12     Implementation Status of Mitigation Measures

Section 13     Conclusions and Recommendation


2.      Project Organization and Construction progress

2.1          Construction Contract Packaging

2.1.1        To facilitate the project management and implementation, the Project was divided by the following contracts:

Ÿ   Contract 1 (Contract No. CV/2016/10)

Ÿ   Contract 2 (Contract No. CV/2017/02)

Ÿ   Contract 3 (Contract No. TBA)

 

2.1.2        Organization structure and contact details of relevant parties with respect to on-site environmental management are shown in Appendix B.

 

2.2          Construction Progress

2.2.1        The three-month rolling construction programme for Contract 1 and Contract 2 are enclosed in Appendix C.  Construction activities of the Contract 1 and Contract 2 undertaken in the Reporting Month are presented below.

 

Contract 1 (CV/2016/10)

l   General site housekeeping

l   Bulk Excavation

l   Construction of Cut Slope, installation of soil nailing and construction of surface channel and planter wall

l   Construction of Fill Slope and surface channel

l   Construction of Pick-up and Drop-off Point near Man Kam To Road

l   Construction of storm/ sewer drain

 

Contract 2 (CV/2017/02)

l   Construction of Manhole, gullies, drainage pipe at Lin Ma Hang Road between CH480-505 Southbound & CH1265-1265 Northbound.

l   Man Kam To Road DN800 DI Sewerage Pipe FM4.19-FM4.22(100m)

l   Filling Works and drainage works for slope FS18 (Part A1)

l   Soil Nail Works at Lin Ma Hang Road Slope C225 & C231

l   Backfilling of Retaining Wall 13

l   Piling Works for Retaining Wall 14

 

2.3          Summary of Environmental Submissions

2.3.1        Summary of the relevant permits, licenses, and/or notifications on environmental protection for the Project in this Reporting Month is presented in Tables 2-1 and 2-2.

Table 2-1         Status of Environmental Licenses and Permits for Contract 1

Item

Description

License/ Permit ref no.

License/ Permit Status

1

Air Pollution Control (Construction Dust) Regulation

Ref. no. 428909

Acknowledged by EPD on 20/12/2017

Valid

2

Chemical waste Producer Registration

WPN: 5231-641-H3937-01

Issued by EPD on 27/03/2018

Valid

3

Water Pollution Control Ordinance

License no. WT00030795-2018

Issued date: 9/5/2018

Expire Date: 31/5/2023

Valid

4

Billing Account for Disposal of Construction Waste

Account no.: 7029769

Valid

5

Construction Noise Permit

GW-RN0222-20 (expired on 30 Sep 2020)

Valid

 

 

Table 2-2         Status of Environmental Licenses and Permits for Contract 2

Item

Description

License/ Permit ref no.

License/ Permit  Status

1

Air Pollution Control (Construction Dust) Regulation

Ref. no. 440406

Acknowledged by EPD on 14/12/2018

Man Kam To Road (near Sha Ling Road to Kong Nga Po Road

Valid

Ref. no. 440405

Acknowledged by EPD on 14/12/2018

Fanling Station Road

Valid

Ref. no. 440404

Acknowledged by EPD on 14/12/2018

Sa Ling Road (Sandy Ridge Cemetery)

Valid

Ref. no. 440401

Acknowledged by EPD on 14/12/2018

Lin Ma Hang Road (San Uk Ling ¡V Muk Wu Nga Yiu)

Valid

Ref. no. 440402

Acknowledged by EPD on 14/12/2018

Lung Sum Avenue (near Landmark North)

Valid

2

Chemical waste Producer Registration

WPN: 5213-641-S4151-01

Issued by EPD on 04/02/2019

Valid

3

Water Pollution Control Ordinance

License no: WT00032936-2018

Issued date: 16/01/2019

Expire Date: 31/01/2024

Man Kam To Road & Lin Ma Hang Road, Man Kam To

Valid

License no: WT00033335-2019

Issued date: 29/03/2019

Expire Date: 31/03/2024

Columbarium at Sandy Ridge Cemetery

Valid

License no:

WT00034717-2019

Issued date: 9/10/2019

Expire Date: 31/10/2024

Fanling Station Road

Valid

4

Billing Account for Disposal of Construction Waste

Account no.: 7031098

Valid

 

2.4          Summary of Submission Under the Environmental Permit Requirements

2.4.1        Tables 2-3 to 2-4 summarized the submission status under the EP and/or FEP stipulation in the Reporting Month.

Table 2-3         Status of Submission as under FEP

Item

EP and / or FEP Stipulation

Description

Status

1

Condition 2.10 of FEP

Management organization of : i) the main construction companies; ii) ET; and iii) IEC and the supporting team

Submitted on 11 April 2018

2

Condition 2.11 of FEP

i) Detailed phasing programme of all construction works; and ii) Location plan of all construction works

Submitted on 12 April 2018

3

Condition 2.12 of FEP

Contamination Assessment Plan (CAP)

Approved by EPD on 27 May 2019

4

Condition 2.13 of FEP

Grassland Reinstatement Plan

Re-submitted on 31 May 2019

5

Condition 2.14 of FEP

Vegetation Survey Report for Contract 1

Approved by EPD on 12 October 2018

6

Condition 2.15 of FEP

Vegetation Transplantation Proposal Contract 1

Approved by EPD on 12 October 2018

7

Condition 2.17 of FEP

Woodland Compensation Plan (Rev.05)

Approved by EPD on 30 Jun 2020

8

Condition 2.18 of FEP

Monitoring and Survey Plan for Golden-headed Cisticola for Contract 1 (Rev.02)

Approved by EPD on 22 Oct 2019

9

Condition 2.20 of FEP

Landscape & Visual Mitigation and Tree Preservation Plan(s) Contract 1 (Rev.04)

Re-submitted on 17 Apr 2020

10

Condition 2.22 of FEP

Traffic Noise Mitigation Plan Contract 1 (Rev. 4)

Re-submitted on 10 Nov 2019

11

Condition 3.3 of the FEP

Baseline Monitoring Report (Air, Noise and Water)

Approved by EPD on 25 October 2018

12

Condition 4.2 of the FEP

The Contract Internet website

Internet website address has notified EPD on 15 Jun 2018

 

Table 2-4         Status of Submission as under EP

Item

EP and / or FEP Stipulation

Description

Status

1a

Condition 2.10 of EP

Management organization of : i) the main construction companies; ii) ET; and iii) IEC and the supporting team

Submitted on 24 September 2018

2a

Condition 2.11 of EP

i) Detailed phasing programme of all construction works; and ii) Location plan of all construction works

Submitted on 26 September 2018

3

Condition 2.13 of EP

Contamination Assessment Plan (CAP)

Approved by EPD on 27 May 2019

4

Condition 2.14 of EP

Grassland Reinstatement Plan 

Re-submitted on 31 May 2019

5

Condition 2.15 of EP and

Vegetation Survey Report Contract 2

Re-submitted on 30 Oct 2019

6

Condition 2.16 of EP

Vegetation Transplantation Proposal Contract 2

Re-submitted on 30 Oct 2019

7

Condition 2.18 of EP

Woodland Compensation Plan (Rev.05)

Approved by EPD on 30 Jun 2020

8

Condition 2.19 of EP

Monitoring and Survey Plan for Golden-headed Cisticola Contract 2

Re-submitted on 30 Oct 2019

9

Condition 2.22 of EP

Landscape & Visual Mitigation and Tree Preservation Plan(s) Contract 2

Re-submitted on 25 Mar 2019

10

Condition 2.24 of EP

Traffic Noise Mitigation Plan Contract 2

Re-submitted on 12 Aug 2019

11

Condition 3.3 of the EP

Baseline Monitoring Report (Air, Noise and Water)

Approved by EPD on 25 October 2018

12

Condition 4.2 of the EP

The Contract Internet website

Internet website address has notified EPD on 15 June 2018


3.      Summary of Impact Monitoring Requirement

3.1          General

3.1.1        The EM&A requirements are set out in the Approved EM&A Manual. Environmental issues such as air quality, construction noise, water quality and ecology were identified as the key issues during the construction phase of the Project.

 

3.1.2        A summary of construction phase EM&A requirements are presented in the sub-sections below.

 

3.2          Monitoring Parameters

3.2.1        The EM&A impact monitoring shall cover the following environmental aspect:

            Air quality;

            Construction noise;

            Water quality;

            Ecology; and

            Landscape and visual

 

3.2.2        A summary of the monitoring parameters is presented in Table 3-1 below

Table 3-1         Summary of EM&A Requirements

Environmental Issue

Parameters

Air Quality

Ÿ  1-hour TSP;

Ÿ  24-hour TSP

Noise

Ÿ  Leq(30min) during normal working hours.; and

Ÿ  Leq(15min) during the construction works undertaken in Restricted Hours

Water Quality

In-situ Measurements

Ÿ  Dissolved Oxygen Concentration (mg/L) & Saturation (% );

Ÿ  Temperature (¢J);

Ÿ  Turbidity (NTU);

Ÿ  Salinity (ppm)

Ÿ  pH unit;

Ÿ  Water depth (m); and

Ÿ  Stream Flow Velocity (m/sec).

Laboratory Analysis

Ÿ  Suspended Solids (mg/L)

Ecology

 Ecologically sensitive habitats (wetland habitats and non-wetland habitats)

 

3.3          Monitoring Locations

3.3.1        According to the Approved EM&A Manual of the Project ¡V Site Formation and Associated Infrastructural Works for Development of Columbarium, Crematorium and Related Facilities at Sandy Ridge Cemetery, the designated monitoring locations for air quality, noise, water quality and ecology under the monitoring programme, is shown in Appendix D.

 

3.3.2        Since the Project was divided into three Works Contracts and all Contracts will be commenced at different time, the construction phase impact monitoring will only be performed at the Contract-related monitoring stations upon commencement of each Contract Works.

 

Air Quality

3.3.3        There were three (3) designated air quality monitoring stations recommended in the Approved EM&A Manual Section 5.6.1.1.  There was proposed relocation of air quality monitoring location ASR-3 in October 2018 since the landlord refused to set up the HVS at his premises and nearby Conservation Area due to noise nuisance and Muk Wu Nga Yiu House No. 2A was proposed as alternative location ASR-3a.  The proposal dated on 9 November 2018 which verified by IEC was submitted to EPD for approval.  Based on rationale in Section 3.3.2, the Contract-related air quality monitoring location for construction phase were summarized in Table 3-2 and illustrated in Appendix D.

 


Table 3-2        Designated Air Quality Monitoring Location under the Project

Location ID

Description in EM&A Manual

Location

Related Work Contract

ASR-1

Village House along Man Kam To Road

Sha Ling Village House No.6

Contract 1

ASR-2

Village House at San Uk Ling

San Uk Ling Village House No.1

Contract 2

ASR-3

Village House at Muk Wu Nga Yiu

Muk Wu Nga Yiu House No.28

Contract 2

ASR-3a (#)

Village House at Muk Wu Nga Yiu

Muk Wu Nga Yiu House No.2A

Contract 2

                 Remark: (#)

There was proposed relocation of air quality monitoring location ASR-3 in October 2018. The proposal dated on 9 November 2018 after verified by IEC was submitted to EPD for approval.

 

3.3.4        If the designated monitoring location is required to relocate, alternative monitoring location shall agree with IEC and seek for EPD approval which shall meet the following criteria:

i)               Be at the site boundary or such locations close to the major dust emission source;

ii)             Close to the sensitive receptors;

iii)           Take into account the prevailing meteorological conditions;

iv)           For monitoring location located in the vicinity of the ASRs, care shall be taken to cause minimal disturbance to the occupants during monitoring.

v)             When positioning the HVS, the following points shall be noted:

a.         a horizontal platform with appropriate support to secure the samples against gusty wind shall be provided;

b.        no two samplers shall be placed less than 2m apart;

c.         the distance between the HVS and an obstacle, such as buildings, must be at least twice the height that the obstacle protrudes above the HVS;

d.        a minimum of 2 m separation from walls, parapets and penthouses is required for HVS at the rooftop;

e.         a minimum of 2 m separation from any supporting structure, measures horizontally is required;

f.         no furnace or incinerator flue is nearby;

g.         airflow around the sampler is unrestricted;

h.        the HVS is more than 20 m from the dripline;

i.          any wire fence and gate to protect the HVS, shall not cause any obstruction during monitoring;

j.          permission must be obtained to set up the HVS and to obtain access to the monitoring stations; and

k.        a secured supply of electricity is needed to operate the HVS.

 

Construction Noise

3.3.5        There were four (4) designated noise monitoring locations recommended in the Approved EM&A Manual Section 6.5.1.1.  Based on rationale in Section 3.3.2, the Contract-related noise quality monitoring location for construction phase were summarized in Table 3-3 and illustrated in Appendix D.

Table 3-3        Designated Construction Noise Monitoring Location under the Project

Location ID

Description in EM&A Manual

Location

Related Work Contract

CN-1

Village house to the west of Sha Ling Road

Village house to the west of Sha Ling Road (free field condition)

Contract 1

CN-2

Village house to the north of Man Kam To Road

Sha Ling Village House No. 25 (free field condition)

Contract 1 & 3

CN-3

Village house near San Uk Ling

San Uk Ling Village House No. 18 (free field condition)

Contract 2

CN-4

Village house of Muk Wu

Muk Wu Village House No. 267 (1m façade from the building)

Contract 2

 

Water Quality

3.3.6        There were four (4) water quality monitoring locations recommended in the Approved EM&A Manual Section 7.6.1.2.  The locations and coordinates of water quality monitoring were listed in Table 3-4.  Based on rationale in Section 3.3.2, the Contract-related water quality monitoring location for construction phase were summarized in Table 3-4 and illustrated in Appendix D.

Table 3-4        Designated Water Quality Monitoring Stations under the Project

Proposed Location ID

Co-ordinates

Description

Related Work Contract

North

East

M1

843 431

831 308

Midstream of Nam Hang Stream

Contract 2

M2

843 840

831 101

Downstream of Nam Hang Stream

Contract 2

M3

843 509

830 040

Wetland in the Conservation Area near Yuen Leng Chai

Contract 1

M4

843 997

831 783

Watercourse across Lin Ma Hang Road, running from east of San Uk Ling to Man Kam To Boundary Control Point

Contract 2

 

3.4          Monitoring Frequency and Period

3.4.1        The requirements of impact monitoring were stipulated in Sections 5.8.1.1, 6.7.1.1 and 7.8.1.4 of the approved EM&A Manual and presented as follows.

 

Air Quality Monitoring

3.4.2        Monitoring frequency for air quality impact monitoring is as follows:

Ÿ   1-Hour TSP

3 sets of 1-hour TSP monitoring shall be carried out once every six days during construction periods

Ÿ   24-Hour TSP

24-hour TSP monitoring shall be carried out every six days during construction periods

 

Noise Monitoring

3.4.3        Noise impact monitoring shall be carried out once per week during construction periods.  The noise measurement for the time period between 0700 and 1900 hours shall be measured in terms of Leq (30 minutes) or 6 sets of Leq (5mins).

 

Water Quality Monitoring

3.4.4        The monitoring frequency shall be 3 days per week during construction phase and the interval between two sets of monitoring shall not be less than 36 hours.

 

3.5          Monitoring Equipment

3.5.1        The monitoring equipment using for the EM&A program as proposed by the ET shall be verified by the IEC.

Air Quality Monitoring

3.5.2        The 24-hour and 1-hour TSP levels shall be measured by following the standard high volume sampling method as set out in the Title 40 of the Code of Federal Regulations, Chapter 1 (Part 50), Appendix B.  If ET proposes to use a direct reading dust meter to measure 1-hour TSP levels, it shall submit sufficient information to IEC for approval.

 

3.5.3        The filter paper of 24-hour TSP measurement shall be determined by HOKLAS accredited laboratory.

 

3.5.4        All equipment used by ET for air quality monitoring is listed in Table 3-5.

Table 3-5         Air Quality Monitoring Equipment

Equipment

Model

24-hour TSP

High Volume Air Sampler (HVAS)

TISCH High Volume Air Sampler, HVS Model TE-5170

Calibration Kit

TISCH Model TE-5025A

1-Hour TSP

Portable Dust Meter

Sibata LD-3 Laser Dust monitor Particle Mass Profiler & Counter

 

Wind Data Monitoring Equipment

3.5.5        According to the approved EM&A Manual, wind data monitoring equipment shall also be provided and set up for logging wind speed and wind direction near the dust monitoring locations.  The equipment installation location shall be proposed by the ET and agreed with the IEC.  For installation and operation of wind data monitoring equipment, the following points shall be observed:

1)             The wind sensors should be installed 10 m above ground so that they are clear of obstructions or turbulence caused by buildings.

2)             The wind data should be captured by a data logger. The data shall be downloaded for analysis at least once a month.

3)             The wind data monitoring equipment should be re-calibrated at least once every six months.

4)             Wind direction should be divided into 16 sectors of 22.5 degrees each.

 

3.5.6        ET has liaised with the premises owners/ landlords to grant the permission for the HVS installation.  However, they rejected to set up wind data monitoring equipment installation in their premises.

 

3.5.7        Under this situation, the ET proposed to obtain representative wind data from the Hong Kong Observatory Ta Kwu Ling Weather Station.  Ta Kwu Ling Station is located near the Project site which situated at the sea level above 15mPD and the wind data monitoring equipment is installed 10 m above the existing ground.

 

Noise Monitoring

3.5.8        Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be used for carrying out the noise monitoring.  The sound level meter shall be checked using an acoustic calibrator.  The wind speed shall be checked with a portable wind speed meter capable of measuring the wind speed in ms-1 before each noise monitoring event. Noise measurements should not be made in fog, rain, wind with a steady speed exceeding 5 m s-1 or wind with gusts exceeding 10 m s-1. 

 

3.5.9        Noise monitoring equipment used for impact monitoring is listed in Table 3-6.

Table 3-6         Noise Monitoring Equipment

Equipment

Model

Integrating Sound Level Meter

Rion NL-52 Sound Level Meter

Calibrator

Rion NC-73 Acoustical Calibrator

Portable Wind Speed Indicator

Testo Anemometer

 

3.5.10    Sound level meters listed above comply with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications, as recommended in TM issued under the NCO.  

 

Water Quality Monitoring

3.5.11    Water quality parameters include dissolved oxygen, water temperature & depth, turbidity, salinity, pH and stream flow velocity shall be measured in-situ, and suspended solids shall be analyzed by a HOKLAS-accredited testing laboratory.

 

Dissolved Oxygen and Temperature Measurement

3.5.12    The dissolved oxygen (DO) measuring instruments should be portable and weatherproof. The equipment should also complete with cable and sensor, and DC power source. It should be capable of measuring:

       A DO level in the range of 0 ¡V 20 mg/L and 0 ¡V 200% saturation; and

       A temperature of 0 ¡V 45 degree Celsius.

 

3.5.13    The equipment should have a membrane electrode with automatic temperature compensation complete with a cable.

 

3.5.14    Should salinity compensation not be built-in to the DO equipment, in-situ salinity should be measured to calibrate the DO measuring instruments prior to each measurement.

 

Turbidity Measurement

3.5.15    The turbidity measuring instruments should be a portable and weatherproof with DC power source.  It should have a photoelectric sensor capable of measuring turbidity level between 0¡V1000 NTU (for example, Hach model 2100Q or an approved similar instrument).

 

Salinity Measurement

3.5.16    A portable salinometer capable of measuring salinity in the range of 0¡V40 parts per thousand (ppt) should be provided for measuring salinity of the water at each monitoring location.

 

pH Measurement

3.5.17    A portable pH meter capable of measuring a range between 0.0 and 14.0 should be provided to measure pH under the specified conditions accordingly to the APHA Standard Methods.

 

Water Depth Measurement

3.5.18    A portable, battery-operated echo sounder or an approved similar instrument should be used for water depths determination at each designated monitoring station.

 

Stream Flow Velocity Equipment

3.5.19    Since the EM&A Manuals do not specified instrument to use stream flow velocity measurement, the monitoring of stream flow velocity is therefore proposed to be conducted by using a flow probe which is a digital water velocity meter.

 

Water Sampling Equipment

3.5.20    A water sampler is required for suspended solid (SS) monitoring.  A water sampler e.g. Kahlsico Water Sampler, which is a transparent PVC cylinder with capacity not less than 2 litres, will be used for water sampling if water depth over than 0.5m.

 

3.5.21    For sampling from very shallow water depths e.g. <0.5 m, water sample will be collected from water surface below 100mm using plastic bottle to avoid inclusion of bottom sediment or humus.  Moreover, Teflon/stainless steel bailer or self-made sampling buckets maybe used for water sampling.  The equipment used for sampling will be depended the sampling location and depth situations.

 

Sample Containers and Storage

3.5.22    Water samples for suspended solid should be stored in high density polythene bottles with no preservative added, packed in ice (cooled to 4¢XC without being frozen) and delivered to the laboratory within 24 hours of collection and be analyzed as soon as possible after collection.

 

3.5.23    Analysis of suspended solids should be carried out in a HOKLAS or other accredited laboratory. Water samples of about 1L should be collected at the monitoring stations for carrying out the laboratory suspended solids determination.  The SS determination work should start within 24 hours after collection of the water samples. The SS analyses should follow the APHA Standard Methods 2540D with Limit of Reporting of 2 mg/L.

 

3.5.24    Details of the equipment used for water quality monitoring are listed in Table 3-7 below.

Table 3-7         Water Quality Monitoring Equipment

Equipment

Model

Water Depth Detector

Tape measures

Water Sampler

A 2-litre transparent PVC cylinder with latex cups at both ends or Teflon/stainless steel bailer or self-made sampling bucket

Thermometer & DO meter

YSI Professional DSS/ YSI 550A

pH meter

AZ8685 pH meter / YSI Professional DSS

Turbidimeter

Hach 2100Q/ YSI Professional DSS

Salinometer

Atago refractometer Atago S Salinity Meter / YSI Professional DSS

Stream Flow Velocity

FP211 Global Flow Probe

Sample Container

High density polythene bottles (provided by laboratory)

Storage Container

¡¥Willow¡¦ 33-litter plastic cool box with Ice pad

 

3.5.25    Furthermore, Suspended solids (SS) analysis was carried out by ALS Technichem (HK) Pty Ltd. Which is one a local HOKLAS-accredited laboratory

 

3.6          Equipment Calibration

3.6.1        The HVAS is operated and calibrated on a regular basis in accordance with the manufacturer¡¦s instruction using Tisch Calibration Kit Model TE-5025A.  Calibration would carry out at fortnightly interval.  The calibration data are properly documented and the records are maintained by ET for future reference.  Furthermore, Tisch Calibration Kit will be calibrated by the manufacturer in yearly basis.

 

3.6.2        The 1-hour TSP meter calibrated by a local HOKLAS-accredited laboratory would be undertaken in yearly basis.  Zero response of the equipment was checked before and after each monitoring event.

 

3.6.3        The sound level meter and acoustic calibrator are calibrated and certified by a laboratory accredited under HOKLAS or any other international accreditation scheme at yearly basis.

 

3.6.4        The multi-parameter Water Quality Monitoring System is calibrated by HOKLAS accredited laboratory of three month intervals.

 

3.6.5        All updated calibration certificates of the monitoring equipment used for the impact monitoring program in this Reporting Month are attached in Appendix E.

 

3.7          Data Management and Data QA/QC Control

3.7.1        The impact monitoring data are handled by the ET¡¦s systematic data recording and management, which complies with in-house Quality Management System. Standard Field Data Sheets (FDS) are used in the impact monitoring program.

 

3.7.2        The monitoring data recorded in the equipment e.g. 1-hour TSP meter, noise meter and Multi-parameter Water Quality Monitoring System are downloaded directly from the equipment at the end of each monitoring day.  The downloaded monitoring data are input into a computerized database properly maintained by the ET.  The laboratory results are input directly into the computerized database and QA/QC checked by personnel other than those who input the data.  For monitoring activities require laboratory analysis, the local laboratory follows the QA/QC requirements as set out under the HOKLAS scheme for all laboratory testing.

 

3.8          Determination of Action/Limit (A/L) Levels

3.8.1        The baseline monitoring results form the basis for determining the environmental acceptance criteria for the impact monitoring. The air quality, construction noise and water quality criteria, namely Action and Limit levels were established according to Approved EM&A Manual, and they are listed in Tables 3-8, 3-9 and 3-10 below.

Table 3-8        Action and Limit Levels for Air Quality Monitoring

Monitoring Station

Action Level (mg /m3)

Limit Level (mg/m3)

1-hour TSP

24-hour TSP

1-hour TSP

24-hour TSP

ASR-1

331

181

500

260

ASR-2

316

165

500

260

ASR-3

307

160

500

260

 


Table 3-9        Action and Limit Levels for Construction Noise

Monitoring Location

Action Level

Limit Level in dB(A)

Time Period: 0700-1900 hours on normal weekdays

CN-1,CN-2, CN-3, CN-4

When one or more documented complaints are received

75 dB(A)

Note:      *   Reduces to 70 dB(A) for schools and 65 dB(A) during the school examination periods.

 

Table 3-10      Action and Limit Levels for Water Quality

Parameter

Performance criteria

Monitoring Location

M1

M2

M3

M4

DO (mg/L)

Action Level

3.03

4.99

4.58

3.62

Limit Level

2.97

4.90

4.49

3.52

Turbidity (NTU)

Action Level

7.1

39.7

5.6

5.4

Limit Level

7.6

42.2

5.9

5.9

SS (mg/L)

Action Level

8.5

29.0

9.3

4.8

Limit Level

10.1

31.0

9.5

5.0

Notes:

     For DO, non-compliance of the water quality limits occurs when monitoring result is lower than the limits

     For turbidity and SS, non-compliance of the water quality limits occurs when monitoring result is higher than the limits.

 

3.8.2        Should non-compliance of the environmental quality criteria occurs, remedial actions will be triggered according to the Event and Action Plan enclosed in Appendix F.

 


4.      Air Quality

4.1          Monitoring Results

4.1.1        In the Reporting Month, air quality monitoring was performed at all designated locations. Impact monitoring schedule provided to all relevant parties was shown in Appendix G.

 

4.1.2        In this Reporting Month, there were 5 sessions of 24-hour TSP and 15 sessions of 1-hour TSP undertaken at each designated station for air quality monitoring.  The air quality monitoring results are summarized in Tables 4-1 to 4-3.  The database of 24-hour TSP is shown in Appendix H and the graphical plots of monitoring result are shown in Appendix I.

Table 4-1        Summary of Air Quality Monitoring Results at ASR-1 under Contract 1

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st hour measured

2nd hour measured

3rd hour measured

4-Jul-20

9

6-Jul-20

9:56

79

74

78

10-Jul-20

7

11-Jul-20

9:27

76

81

71

16-Jul-20

38

17-Jul-20

9:38

78

85

80

22-Jul-20

27

23-Jul-20

9:23

82

79

78

28-Jul-20

24

29-Jul-20

9:25

76

73

71

Average

(Range)

21

(7 ¡V 38)

Average

(Range)

77

(71 ¡V 85)

 

Table 4-2        Summary of Air Quality Monitoring Results at ASR-2 under Contract 2

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st hour measured

2nd hour measured

3rd hour measured

4-Jul-20

17

6-Jul-20

10:09

76

75

69

10-Jul-20

18

11-Jul-20

9:53

82

78

74

16-Jul-20

36

17-Jul-20

9:45

82

80

81

22-Jul-20

13

23-Jul-20

9:55

79

77

76

28-Jul-20

24

29-Jul-20

9:35

72

74

80

Average

(Range)

22

(13 ¡V 36)

Average

(Range)

77

(69 ¡V 82)

 

Table 4-3        Summary of Air Quality Monitoring Results at ASR-3a under Contract 2

Date

24-hour TSP (mg/m3)

1-hour TSP (mg/m3)

Date

Start Time

1st hour measured

2nd hour measured

3rd hour measured

4-Jul-20

19

6-Jul-20

10:15

66

71

69

10-Jul-20

15

11-Jul-20

13:21

76

75

70

16-Jul-20

41

17-Jul-20

10:01

74

78

75

22-Jul-20

20

23-Jul-20

12:53

76

72

71

28-Jul-20

16

29-Jul-20

10:48

70

67

64

Average

(Range)

22

(15 ¡V 41)

Average

(Range)

72

(64 ¡V 78)

 

4.2          Air Monitoring Exceedance

4.2.1        As shown in Tables 4-1 to 4-3, the monitoring results of 24-hour and 1-hour TSP monitoring in the Reporting Month were below the Action/ Limit Level.  No Notification of Exceedance (NOE) of air quality monitoring criteria was issued and therefore corrective action was not required. The meteorological data during the impact monitoring days are summarized in Appendix J.


5.      Construction Noise

5.1          Monitoring Results

5.1.1        In the Reporting Month, noise monitoring was performed at all designated locations.  Impact monitoring schedule provided to all relevant parties was shown in Appendix G.

 

5.1.2        In this Reporting Month, 4 sessions of noise monitoring were undertaken at each designated noise monitoring location.  The sound level were set in a free field situation for CN1, CN2 and CN3 and therefore a façade correction of +3dB(A) has been added according to acoustical principles and EPD guidelines.  The monitoring result of noise monitoring is show in Tables 5-1 and 5-2 and the graphical plots are shown in Appendix I.

Table 5-1             Summary of Construction Noise Monitoring Results under Contract 1

Construction Noise Level (Leq30min), dB(A)

Date

Start Time

CN1(*)

Start Time

CN2(*)

6-Jul-20

13:33

66

14:18

66

17-Jul-20

13:36

67

14:27

67

23-Jul-20

10:18

66

11:03

68

29-Jul-20

9:25

66

10:02

67

Limit Level

75 dB(A)

(*) A façade correction of +3dB(A) has been added according to acoustical principles and EPD guidelines.

 

Table 5-2             Summary of Construction Noise Monitoring Results under Contract 2

Construction Noise Level (Leq30min), dB(A)

Date

Start Time

CN3 (*)

Start Time

CN4

6-Jul-20

15:07

57

15:58

59

17-Jul-20

15:15

58

16:10

59

23-Jul-20

14:41

61

15:31

60

29-Jul-20

10:40

59

11:38

56

Limit Level

75 dB(A)

(*) A façade correction of +3dB(A) has been added according to acoustical principles and EPD guidelines.

 

5.1.3        Prior and after noise monitoring, the accuracy of the sound level meter has been checked by an acoustic calibrator to ensure the measurement within acceptance range of ¡Ó0.5dB.  Moreover, wind speed checked by portable wind speed meter has been performed before noise monitoring.  No noise measurement was performed in fog, rain, wind with a steady speed exceeding 5 m s-1 or wind with gusts exceeding 10 m s-1

    

5.2          Noise Monitoring Exceedance

5.2.1        As shown in Tables 5-1 and 5-2, no Limit Level exceedance for noise monitoring exceedance was recorded in the Reporting Month.  Moreover, no noise complaint (which triggered Action Level) was received.  No Notification of Exceedance (NOE) of construction noise criterion was issued and no corrective action was therefore required.

 


6.      Water Quality

6.1          Monitoring Results

6.1.1        In the Reporting Month, water quality monitoring was performed at all designated locations.  Impact monitoring schedule provided to all relevant parties was shown in Appendix G.

 

6.1.2        In the Reporting Month, a total of 14 monitoring days were carried out for water quality impact monitoring.  The monitoring result of key parameters including Dissolved Oxygen, Turbidity and Suspended Solids are summarized in Tables 6-1 and 6-2.  Detailed monitoring results including in-situ measurements and laboratory analysis data are shown in Appendix H and graphical plots for monitoring result are shown in Appendix I.

Table 6-1         Summary of Water Quality Monitoring Results ¡V M3 under Contract 1

Date

Parameters

DO (Averaged)

(mg/L)

Turbidity (Averaged)

(NTU)

Suspended Solids (Averaged)

(mg/L)

2-Jul-20

5.06

2.7

8.0

4-Jul-20

5.66

3.5

6.0

6-Jul-20

5.38

4.7

4.0

8-Jul-20

4.68

4.6

5.0

10-Jul-20

5.96

4.7

5.0

13-Jul-20

5.87

5.4

5.5

15-Jul-20

5.61

4.9

4.5

17-Jul-20

5.70

4.1

4.5

20-Jul-20

6.12

5.4

5.0

22-Jul-20

5.77

4.6

3.5

24-Jul-20

5.91

4.4

4.0

27-Jul-20

5.80

4.8

4.0

29-Jul-20

6.11

5.3

4.0

31-Jul-20

6.54

5.1

7.5

 

Table 6-2   Summary of Water Quality Monitoring Results (M1, M2 and M4) under Contract 2

Date

Parameters

DO (Averaged)

(mg/L)

Turbidity (Averaged)

(NTU)

Suspended Solids (Averaged) (mg/L)

M1

M2

M4

M1

M2

M4

M1

M2

M4

2-Jul-20

5.62

#

5.32

4.4

#

1.8

6.5

#

2.0

4-Jul-20

6.51

#

6.05

3.3

#

3.4

3.5

#

2.0

6-Jul-20

5.83

#

6.17

2.2

#

2.7

4.0

#

<2

8-Jul-20

4.19

#

4.58

6.4

#

3.7

7.0

#

4.0

10-Jul-20

6.41

#

6.57

5.9

#

3.2

3.5

#

2.0

13-Jul-20

7.41

#

6.53

6.7

#

2.7

6.5

#

2.5

15-Jul-20

6.05

#

6.17

1.5

#

1.9

6.5

#

3.0

17-Jul-20

5.81

#

6.95

5.3

#

1.1

8.0

#

<2

20-Jul-20

6.28

#

6.75

10.1

#

1.3

29.0

#

<2

22-Jul-20

6.35

#

6.50

5.4

#

5.2

8.0

#

<2

24-Jul-20

6.45

#

6.78

6.2

#

1.0

21.0

#

<2

27-Jul-20

6.16

#

5.36

4.4

#

23.1

3.5

#

15.5

29-Jul-20

6.16

#

6.28

4.5

#

2.1

4.5

#

<2

31-Jul-20

5.37

#

4.86

4.8

#

10.8

5.0

#

17.0

Remarks: (#) During the water monitoring, the channel of M2 was observed dried up and water sampling was unable be carried out;

Note: Bold and underlined indicated Limit Level exceedance

 

 

6.1.3        During the Reporting Month, field measurements including temperature of stream water, salinity concentrations, pH values and the stream flow velocity for all monitoring locations are summarized in Table 6-3.

Table 6-3   Summary of Field Measurements for Water Quality

Monitoring Location

Parameters of field measurements

pH (Averaged)

 (unit)

Salinity (Averaged) (ppt)

Temp (Averaged) (oC)

Water Flow (Averaged) (m/s)

min

max

min

max

min

max

min

max

M1

6.8

8.7

0.04

0.06

26.6

29.8

<0.1

<0.1

M2

#

#

#

#

#

#

#

#

M3

6.2

8.6

0.02

0.03

27.6

31.5

<0.1

<0.1

M4

6.4

7.9

0.04

0.07

27.8

31.7

<0.1

<0.1

Remarks: (#) During the water monitoring, the channel of M2 was observed dried up and water sampling was unable be carried out;

 

6.2          Water Quality Monitoring Exceedance

6.2.1        In this Reporting Month, 7 Limit Level and no Action Level water quality exceedances were recorded. The non-compliance of water quality performance is summarized in Table 6-4.

Table 6-4         Action and Limit (A/L) Levels Exceedance Record

Station

DO

Turbidity

SS

Total Exceedance

Project Related exceedance

Action

Limit

Action

Limit

Action

Limit

Action

Limit

Action

Limit

M1

0

0

0

1

0

2

0

3

0

0

M2

0

0

0

0

0

0

0

0

0

0

M3

0

0

0

0

0

0

0

0

0

0

M4

0

0

0

2

0

2

0

4

0

0

 

6.2.2        Notification of Exceedance (NOE) and the investigation for exceedance in the Reporting Month is summarized in Table 6-5.

Table 6-5       Summary of Investigation of Water Quality Exceedance in the Reporting Month

Date of Exceedance

Exceeded Location

Exceeded Parameter

Cause of Water Quality Exceedance

20 July 2020

M1

Turbidity & SS

According to the work programme and as observed during water quality monitoring, no construction activities were carried out near location M1 and no discharge made into stream. Water quality mitigation measures have been implemented to minimize the water quality impact arising from contract works. In view of the implementation of water quality mitigation measures, the site was generally in good order and no water quality impact was observed, it is considered that the exceedances were not related to the works under the Project.

24, 27 & 31 July 2020

M1 & M4

Turbidity & SS

According to the work programme and site observation during water quality monitoring on 24, 27 and 31 July 2020, no construction activities were carried out near location M1 & M4 and no discharge made into stream. According to the weather data from HKO, there was heavy rainstorm on 31 July. Under the impact of rainstorm, the water quality of the watercourse was highly affected by the stirred up sediment and runoff from the surrounding environment. Based on our investigation, it was concluded that the exceedances were unlikely caused by the works under the project.

 


7.      Ecology Monitoring

7.1          Requirement

7.1.1        According to approved EIA report (AEIAR-198/2016), habitat types within project boundary comprise of watercourse, grassland, upland grassland, plantation, woodland and developed area. Natural habitats were of moderate ecological value in terms of species diversity, species rarity, species abundance, ecological linkage as well as nursery. Moreover, 0.3ha of wet woodland on the northern side of Sandy Ridge was deemed habitat with high ecological value.  Four types of habitats were regarded as ecologically sensitive habitats, namely wet woodland, watercourses, upland grassland and woodland. Considering human disturbance in upcoming construction and operation phases, ecologically sensitive habitats shall be monitored in accordance with EM&A Manual.

 

7.1.2        The objective of ecologically sensitive habitats monitoring is to evaluate the effectiveness of measures to minimize impacts on concerned habitats from disturbance and pollution. In order to monitor the effectiveness of the measures to the minimize impact on ecologically sensitive habitats from disturbance and pollution, monthly monitoring during construction and operation phases is required as specified in EM&A Manual. Standard faunal transect and sampling surveys cover both wetland habitats (wet woodland and watercourse) and non-wetland habitats (upland grassland and woodland).

 

7.2          Methodology

7.2.1        Wetland habitats include wet woodland and watercourses. Monitoring surveys using standardized quantitative methodology will conduct at fixed points.  For seasonal watercourse, the survey will be conducted whenever the habitat appears.  Measures to respond to decreases in numbers of aquatic fauna using the wetland habitats and Action/Limit levels to trigger these measures are detailed in Table 7-1.

Table 7-1         Action and Limit Levels for Wet Woodland Habitats Monitoring

Action Level

Response

Limit Level

Response

Reduction in taxa diversity by 30%

Investigate cause and if cause identified as related to the project instigate remedial action to remove or reduce source of disturbance.

Reduction in taxa diversity by 50%

Investigate cause and if cause identified as related to the project instigate remedial action.

Remarks: Action and Limit Levels and Responses to Evidence of Declines in Aquatic Fauna

 

7.2.2        Non-wetland habitats consist of upland grassland and woodland. Monthly quantitative surveys of non-aquatic fauna will be conducted using standard route transect counts.  Measures to respond to decreases in numbers of non-aquatic fauna using the non-wetland habitats and Action/Limit levels to trigger these measures are detailed in Table 7-2.

Table 7-2         Action and Limit Levels for Non-Wet Woodland Habitats Monitoring

Action Level

Response

Limit Level

Response

Reduction in species diversity by 30%

Investigate cause and if cause identified as related to the project instigate remedial action to remove or reduce source of disturbance.

Reduction in species diversity by 50%

Investigate cause and if cause identified as related to the project instigate remedial action.

Remarks: Action and Limit Levels and Responses to Evidence of Declines in Non-Aquatic Fauna

 

7.2.3        The ecological survey includes all taxa being investigated in accordance with EIA report.  Schedule of faunal surveys in each year during construction phase is presented in Table 7-3.

Table 7-3         Schedule of Faunal Surveys in each year During Construction Phase

Month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Mammals

Ö

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

Birds (day)

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

Birds (night)

 

 

 

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

 

 

Herpetofauna

 

 

 

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

 

 

Dragonflies

 

 

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

 

 

Butterflies

 

 

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

 

 

Aquatic fauna

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

¡Ô

 

Mammal Survey

7.2.4        Mammal surveys will be conducted along the proposed transects (shown in Appendix D of the survey report) during both daytime and night time periods. Along with direct observations, other field signs, such as scats and tracks, will be searched and recorded if present.

 

Bird Survey

7.2.5        Bird surveys will be conducted along the transects (shown in Appendix D of the survey report) during the surveys, species and their vocalizing individuals recorded will be enumerated and recorded according to the habitat(s) they are utilizing.

 

Herpetofauna Survey

7.2.6        Reptile and amphibian surveys will be conducted along transects (shown in Appendix D of the survey report) during surveys careful searches of appropriate microhabitats and refugia for reptiles and their vocalizing individuals will be undertaken and all reptiles observed will be identified and counted.

 

Dragonfly and Butterfly Survey

7.2.7        Dragonfly and Butterfly surveys will be conducted along transects (shown in Appendix D of the survey report) during surveys all dragonflies and Butterflies seen will be identified and counted as accurately as possible.

 

Aquatic Fauna Survey

7.2.8        Freshwater fishes and macro-invertebrates will be recorded by direct observation. All species trapped/recorded will be enumerated and identified (to the lowest taxonomic level possible), and the species of conservation importance photographed.

 

7.2.9        After each ecological monitoring survey, a monthly report of the survey result and data collected will be provided with reference to EM&A Manual. An annual analysis of data will be carried out in order to study if there is any significant reduction in taxa diversity and abundance.

 

7.3          Ecological Monitoring Survey Findings (Contract 1)

7.3.1        In the Reporting Month, ecological monitoring was undertaken on 7th July 2020 at work area of Contract 1.  A sunny day. The day and night survey covered wetland and non-wetland areas. The survey was conducted by transect and at fixed points.  All species seen will be identified and counted as accurately as possible.  Results of the monitoring survey are presented below:

 

Monitoring Result for Contract 1

Mammal

7.3.2        There was no mammal recorded in the monitoring area

 

Birds

7.3.3        There were total of 16 bird individuals from 8 species recorded in the monitoring area. Three species of conservation interests were recorded in the monitoring area: Tachybaptus ruficollis, Little Grebe(¤p鸊鷉), Nycticorax nycticorax, Black-crowned Night Heron (©]ÆO) ,and Centropus bengalensis, Lesser Coucal (¤p¾~ÃY).

 

Herpetofauna

7.3.4        There was no reptile recorded in the monitoring area. There was two amphibian species recorded in the monitoring area.

 

Butterfly

7.3.5        There were a total of 7 butterfly individuals from 3 species recorded in the monitoring area.

 

Dragonfly

7.3.6        There were a total of 15 odonate individual from 8 species recorded in the monitoring area.

 

Aquatic Fauna Survey (Freshwater communities)

7.3.7        There was no freshwater community recorded in the monitoring area.

 

7.3.8        The summaries of faunal survey result are shown in Tables 7-4 and 7-5. 

 

Table 7-4         Result of Faunal Survey under Contract 1

Scientific Name

Common / Engineer Name

Chinese Name

Conservation Status

Non-

wetland

Wetland

Mammal Survey

--

--

--

--

--

--

Avifauna Survey

Tachybaptus ruficollis

Little Grebe

¤p鸊鷉

Fellowes et al. (2002):

LC

 

1

Nycticorax nycticorax

Black-crowned Night

Heron

©]ÆO

Fellowes et al.

(2002):( LC)

 

2

Centropus bengalensis

Lesser Coucal

¤p¾~ÃY

Class 2 Protected

Animal of China;China

Red Data Book Status:

(Vulnerable)

 

1

Lanius schach

Long-tailed Shrike

´Ä­I§B³Ò

 

 

1

Dicrurus macrocercus

Black Drongo

¶Â¨÷§À

 

 

2

Pycnonotus jocosus

Red-whiskered Bulbul

¬õ¦Õóí

 

3

 

Pycnonotus sinensis

Chinese Bulbul

¥ÕÀYóí

 

2

 

Hirundo rustica

Barn Swallow

®a¿P

 

 

4

Reptile Survey

--

--

--

--

--

--

Amphibian Survey

Polypedates megacephalus

Brown Tree Frog

´³»Lªx¾ðµì

 

 

+

Bufo melanostictus

Asian Common Toad

¶Â²µÃÊßï

 

 

+

Butterfly Survey

Abisara echerius

Plum Judy

³D¥Ø½Å¸Ã½º

 

4

 

Chilasa clytia

Common Mime

´³»ñ½º

 

1

 

Catopsilia pomona

Lemon Emigrant

¾E¯»½º

 

 

2

Odonate Survey

Brachydiplax chalybea

Blue Dasher

ÂÅÃB²¨¯ß»f

 

 

2

Lyriothemis elegantissima

Forest Chaser

µØÄR¼e¸¡»f

 

 

1

Neurothemis tullia

Pied Percher

ºI´³¯ß»f

 

 

1

Pantala flavescens

Wandering Glider

¶À»f

 

 

2

Rhyothemis triangularis

Sapphire Flutterer

¤T¨¤ÄR¯Í»f

Fellowes et al.

(2002): LC

4

 

Rhyothemis variegata

Variegated Flutterer

´³ÄR¯Í»f

 

 

2

Urothemis signata

Scarlet Basker

¨ª´³¦±鈎¯ß»f

Fellowes et al.

(2002): LC

2

 

Zyxomma petiolatum

Dingy Dusk-darter

²Ó¸¡ºñ²´»f

 

 

1

+: Species appeared but uncountable.

 

Table 7-5         Result of Freshwater Communities Survey under Contract 1

Scientific Name

Common Name

Chinese Name

Conservation Status

7-Jul-20

Non-

wetland

Wetland

--

--

--

--

--

--

 

7.4          Ecological Monitoring Survey Findings (Contract 2)

7.4.1        In the Reporting Month, ecological monitoring was undertaken on 7th July 2020 at work area of Contract 2.  A sunny day. The day and night survey covered wetland and non-wetland areas. The survey was conducted by transect and at fixed point. All species seen will be identified and counted as accurately as possible.  Results of the monitoring survey are presented below:

 

Monitoring Result for Contract 2

Mammal

7.4.2        There was no mammal recorded in the monitoring area

 

Birds

7.4.3        There were a total of 19 bird individuals from 8 species recorded in the monitoring area.

 

Herpetofauna

7.4.4        There was no reptile recorded in the monitoring area. There were two amphibian recorded in the monitoring area.

 

Butterfly

7.4.5        There were total 3 butterfly individuals from 2 species recorded in the monitoring area.

 

Dragonfly

7.4.6        There were total 3 odonate individuals from 2 species recorded in the monitoring area.

 

Aquatic Fauna Survey (Freshwater communities)

7.4.7        There were two species of freshwater fish were recorded in the monitoring area.

 

7.4.8        The summaries of faunal survey result are shown in Tables 7-6 and 7-7.

Table 7-6         Result of Faunal Survey under Contract 2

Scientific Name

Common / Engineer Name

Chinese Name

Conservation Status

Non-

wetland

Wetland

Mammal Survey

--

--

--

--

--

--

Avifauna Survey

Spilopelia chinensis

Spotted Dove

¯]ÀV´³¹§

 

1

2

Lanius schach

Long-tailed Shrike

´Ä­I§B³Ò

 

 

1

Pycnonotus jocosus

Red-whiskered Bulbul

¬õ¦Õóí

 

2

 

Hirundo rustica

Barn Swallow

®a¿P

 

4

 

Prinia  flaviventris

Yellow-bellied Prinia

¶À¸¡økÅa

 

 

1

Orthotomus sutorius

Common Tailorbird

ªø§ÀÁ_¸­Åa

 

2

2

Garrulax perspicillatus

Masked

Laughingthrush

¶ÂÁy¾¸鶥

 

2

 

Zosterops japonicus

Japanese White-eye

·tºñ¸²´³¾

 

2

 

Reptile Survey

--

--

--

--

--

--

Amphibian Survey

Bufo melanostictus

Asian Common Toad

¶Â²µÃÊßï

 

 

+

Polypedates

megacephalus

Brown Tree Frog

´³»Lªx¾ðµì

 

 

+

Butterfly Survey

Papilio polytes polytes

Common Mormon

¥É±a»ñ½º

 

1

 

Pieris canidia

Indian Cabbage White

ªF¤èµæ¯»½º

 

 

2

Odonate Survey

Prodasineura autumnalis

Black Threadtail

¯Q¾¦­ìîe

 

 

2

Tholymis tillarga

Evening Skimmer

¶³´³»f

 

 

1

 

Table 7-7         Result of Freshwater Communities Survey under Contract 2

Scientific Name

Common Name

Chinese Name

Conservation Status

7-Jul-20

Gambusia affinis

Mosquito fish

­¹°A³½

 

+

Puntius semifasciolatus

Chinese Barb

¤­½uµLŽ

 

+

+: Species appeared but uncountable.

 

7.4.9        The detailed survey reports of Contract 1 and Contract 2 are attached in Appendix K.

 

7.4.10    The tentative ecology inspection and monitoring in the next Reporting Month (August 2020) is scheduled on 6th August 2020.

 

7.5          Measure for Protection of Nesting Bird

7.5.1        Pursuant to FEP-01/534/2017/A condition 2.19 and EP-534/2017/A condition 2.20, precautionary checks for the presence of nesting birds shall be carried out in the breeding season (February to July) before vegetation clearance.

 

7.5.2        As advised by both Contractors, there were no vegetation clearance conducted within the site in the Reporting Month and therefore precautionary check for the presence of nesting birds was not required.


8.      Landscape and Visual

8.1          Requirement

8.1.1        The EIA has recommended EM&A for landscape and visual resources to be undertaken during the design, construction and operational stages of the project. The design, implementation and maintenance of landscape mitigation measures is a key aspect of this and should be checked to ensure that they are fully realized and that potential conflicts between the proposed landscape measures and any other project works let its are resolved at the earliest possible date and without compromise to the intention of the mitigation measures. In addition, implementation of the mitigation measures recommended by the EIA will be monitored through the site audit programme.

 

8.1.2        A number of mitigation measures to ameliorate the landscape and visual impacts of the Project implementation is summarized in the EMIS of Appendix 13.1 of the EIA Report.

 

8.1.3        The landscape and visual mitigation measures proposed should be incorporated in the landscape and engineering design.  Mitigation measures to be implemented during construction should be adopted from the start of construction and be in place throughout the entire construction period.  Mitigation measures to be implemented during operation should be integrated into the detailed design and built as part of the construction works so that they are in place on commissioning of the Project.  Tree transplantation and compensatory planting should be carried out as early as possible in the Project with transplantation carried out prior to construction starting in any particular area.

 

8.1.4        During construction phase, Landscape & Visual Monitoring of the contractor¡¦s operations should be conducted monthly and reported by ET, and countersigned by IEC.

 

8.2          Findings / Deficiencies During Site Inspection in the Reporting Month

8.2.1        In the Reporting Month, landscape & Visual inspection was carried out by the Registered Landscape Architect (RLA) for works area of Contract 1 and Contract 2 on 21st July 2020. The findings / reminders recorded during the inspection are presented in Tables 8-1 and 8-2.3

 

Table 8-1        Landscape & Visual Inspection Finding for Contract 1

Date

Findings and Reminder

Follow-Up Status

21st July 2020

1.      The Contractor is reminded to prevent the construction material pile within TPZ and ensure no works is allowed within the TPZ.

       Reminder was noted by the Contractor.

2.      Transplanted trees T2465, T2468 and T2928 were in fair health condition with normal foliage color and density. Contractor is reminded to provide proper maintenance according to approved method statement.

       Reminder was noted by the Contractor.

 

Table 8-2        Landscape & Visual Inspection Finding for Contract 2

Date

Findings and Reminder

Follow-Up Status

21st July 2020

1.     The Contractor is reminded to prevent the construction material pile within TPZ and ensure no works is allowed within the TPZ

       Reminder was noted by the Contractor.

 

2.     Proper TPZ should be set up according to approved method statement.

       Reminder was noted by the Contractor.

 

8.2.2        Inspection checklist of Landscape & Visual signed by RLA is attached in Appendix L.

 


9.      Waste Management

9.1          General Waste Management

9.1.1        Waste management was carried out by an on-site Environmental Officer or an Environmental Supervisor from time to time in accordance with the Waste Management Plan (WMP).

 

9.2          Records of Waste Quantities

9.2.1        All types of waste arising from the construction work are classified into the following:

l   Construction & Demolition (C&D) Material;

l   Chemical Waste;

l   General Refuse; and

l   Excavated Soil.

 

9.2.2        The quantities of waste for disposal in this Reporting Month are summarized in Table 9-1 and 9-2 and the Monthly Summary Waste Flow Table is shown in Appendix M.  Whenever possible, materials were reused on-site as far as practicable.

Table 9-1         Summary of Quantities of Inert C&D Materials

Type of Waste

Contract 1

Contract 2

Quantity

Disposal Location

Quantity

Disposal Location

C&D Materials (Inert) (¡¥000m3)

0

--

916.390

(#)

--

Reused in this Contract (Inert) (¡¥000m3)

8.523

Within Contract area

0

--

Reused in other Projects (Inert) (¡¥000m3)

0

--

0

--

Disposal as Public Fill (Inert) (¡¥000m3)

0.678

Tuen Mun Area 38

916.390

(#)

Tuen Mun Area 38

            Remark: the unit is ¡¥000kg

 

Table 9-2        Summary of Quantities of C&D Wastes

Type of Waste

Contract 1

Contract 2

Quantity

Disposal Location

Quantity

Disposal Location

Recycled Metal (¡¥000kg)

0

--

0

--

Recycled Paper / Cardboard Packing (¡¥000kg)

0

--

0

--

Recycled Plastic (¡¥000kg)

0

--

0

--

Chemical Wastes (¡¥000kg)

0

--

0

--

General Refuses (¡¥000m3)

0.188

NENT Landfill

15.720

(#)

NENT Landfill

            Remark: the unit is ¡¥000kg

 

9.2.3        Since canteen and/or kitchen are not allowed setting on the Project site, no domestic wastewater was generated from the Project.

 

 

 


10.  Site Inspection

10.1      Requirement

10.1.1    According to the approved EM&A Manual, environmental site inspection should be led by RE and attended by the Contractor and ET at least once per week. Regular environmental site inspections shall be carried out to assess the environmental performance.

 

10.2      Findings / Deficiencies During Site Inspection in the Reporting Month

Contract 1

10.2.1    In the Reporting Month, joint site inspections for Contract 1 to evaluate the site environmental performance were carried out by the RE, ET and the Contractor on 2nd, 9th, 16th, 23rd and 30th July 2020 and IEC attended joint site inspection on 16th July 2020.  No non-compliance was noted.

 

10.2.2    The findings / deficiencies that observed during the weekly site inspection are listed in Table 10-1.

Table 10-1      Site Observations for the Works of Contract 1

Date

Findings / Deficiencies

Follow-Up Status

2nd July 2020

Ÿ Front head of hydraulic breaker should be properly stored to avoid leakage of lube oil and cause land contamination.

Ÿ Front head of hydraulic breaker was removed,

 

Ÿ The Contractor was reminded to remove stagnant water accumulated on site after rainy days.

Ÿ Reminder only

9th July 2020

Ÿ The Contractor was reminded to dispose waste regularly at FS1.

Ÿ Reminder only

16th July 2020

Ÿ Chemical containers should be placed inside drip tray. (Bending Area)

Ÿ Chemical containers were removed.

 

Ÿ Chemical containers should be placed inside drip tray. (Storage area near site entrance)

Ÿ The Chemical container was removed.

 

Ÿ Drip tray under the generator should be repaired to avoid leaking of any spillied chemical.

Ÿ Drip tray was replaced.

 

Ÿ The Contractor was reminded to provide water spraying on site regularly.

Ÿ Reminder only

 

Ÿ The Contractor was reminded to provide drip tray and display NRMM label for the generator properly at CS15.

Ÿ Reminder only

23rd July 2020

Ÿ The Contractor was reminded to provide proper mitigation measure to prevent dark smoke emission of the breaker. (CS11)

Ÿ Reminded only.

30th July 2020

Ÿ The Contractor was reminded to provide water spraying to reduce dust impact. (General)

Ÿ Reminded only.

 

Contract 2

10.2.3    In the Reporting Month, joint site inspections for Contract 2 to evaluate the site environmental performance carried out by the RE, ET and the Contractor was on 2nd, 9th, 16th, 23rd and 30th July 2020 and IEC attended joint site inspection on 16th July 2020.  No non-compliance was noted.

 

10.2.4    The findings / deficiencies that observed during the weekly site inspection are listed in Table 10-2.

Table 10-2      Site Observations for the Works of Contract 2

Date

Findings / Deficiencies

Follow-Up Status

2nd July 2020

Ÿ The Contractor was reminded to remove any stagnant water accumulated on site after rainy day.

Ÿ Reminder only.

9th July 2020

Ÿ The Contractor was reminded to clear muddy trail at site entrance. (Man Kam To Road)

Ÿ Reminder only.

16th July 2020

Ÿ Scattered general at CS20 should be disposed properly.  

Ÿ The scattered general was disposed properly.

 

Ÿ The Contractor was reminded to store the equipment within site boundary at C231.

Ÿ Reminder only.

23rd July 2020

Ÿ NRMM label should be displayed on the generator used on site.

Ÿ NRMM label was provided for the generator.

 

Ÿ The Contractor was reminded to provide drip tray for any chemical containers.

Ÿ Reminder only.

30th July 2020

Ÿ Improper color of NRMM label of air compressor was observed at CS20. The Contractor was advised to replace the NRMM label.

Ÿ NRMM label with proper color was displayed on the air compressor.


11.  Environmental Complaint and Non-Compliance

11.1      Environmental Complaint, Summons and Prosecution

11.1.1    In the Reporting Month, no environmental complaint was received for the Project.  No summons and prosecution was lodged for the Contract.  The statistical summary table of the environmental complaint, summons and prosecution are presented in Tables 11-1, 11-2 and 11-3.

Table 11-1       Statistical Summary of Environmental Complaints

Reporting Month

Environmental Complaint Statistics

Frequency

Cumulative

Complaint Nature

1 ¡V 31 July 2020

Contract 1

0

0

NA

1 ¡V 31 July 2020

Contract 2

0

0

NA

 

Table 11-2       Statistical Summary of Environmental Summons

Reporting Month

Environmental Summons Statistics

Frequency

Cumulative

Complaint Nature

1 ¡V 31 July 2020

Contract 1

0

0

NA

1 ¡V 31 July 2020

Contract 2

0

0

NA

 

Table 11-3       Statistical Summary of Environmental Prosecution

Reporting Month

Environmental Prosecution Statistics

Frequency

Cumulative

Complaint Nature

1 ¡V 31 July 2020

Contract 1

0

0

NA

1 ¡V 31 July 2020

Contract 2

0

0

NA

 

11.1.2    In addition, no complaints received and emergency events relating to violation of environmental legislation for illegal dumping and landfilling were received.

 


12.  Implementation Status of Mitigation Measures

12.1      General Requirements

12.1.1    The environmental mitigation measures that recommended in the Implementation Schedule for Environmental Mitigation Measures (ISEMM) in the approved EM&A Manual covered the issues of dust, noise, water and waste and they are summarized presented in Appendix N.

 

12.1.2    The Works of Contract 1 and Contract 2 under the Project shall be implementing the required environmental mitigation measures according to the approved EM&A Manual subject to the site condition.  Environmental mitigation measures implemented in this Reporting Month is summarized in Table 12-1.

 

Table 12-1       Environmental Mitigation Measures

Issues

Environmental Mitigation Measures

Water Quality

¡P       Provided efficient silt removal facilities to reduce SS level before effluent discharge.

¡P       Provided ditches, earth bunds or sand bag barriers to minimize polluted runoff.

¡P       Temporary drainage was provided to prevent runoff going through site surface and minimize polluted runoff.

¡P       Provided perimeter cut-off drains at site boundaries to intercept storm runoff from crossing the site.

¡P       Exposed slopes surface were compacted and covered with tarpaulin or similar means.

¡P       Provided portable chemical toilets on site.

Air Quality

¡P       Maintain damp / wet surface on access road.

¡P       Maintain low vehicular speed within the works areas.

¡P       Provided vehicle wheel washing facilities at each construction site exit;

¡P       Provided water spraying for all active works area.

¡P       Stockpiles of dusty material were covered with impervious sheeting.

¡P       Provided workers to clear dusty materials at the vehicle entrance or exit regularly.

¡P       Stockpile more than 20 bags of cement or dry pulverized fuel ash (PFA) has been covered entirely by impervious sheeting or placed in an area sheltered on the top and the 3 sides.

Noise

¡P       Restricted operation time of plants from 07:00 to 19:00 on any working day except for Public Holiday and Sunday.

¡P       Keep good maintenance of plants

¡P       Placed noisy plants away from residence and school

¡P       Provided noise barriers or hoarding to enclose the noisy plants or works

¡P       Shut down the plants when not in used.

Waste and Chemical Management

¡P       Provided on-site sorting prior to disposal

¡P       Followed requirements and procedures of the ¡§Trip-ticket System¡¨

¡P       Predicted required quantity of concrete accurately

¡P       Collected the unused fresh concrete at designated locations in the sites for subsequent disposal

General

¡P       The site was generally kept tidy and clean.

 

12.2      Tentative Construction Activities in the Coming Month

12.2.1    According to the information provided by HCTYJV, the forthcoming construction activities for Contract 1 are listed below:

(i)            General Site Housekeeping

(ii)          Bulk Excavation

(iii)        Construction of Cut Slope, installation of soil nailing and construction of surface channel and planter wall.

(iv)        Construction of Fill Slope and surface channel

(v)          Construction of Pick-up and Drop-off Point near Man Kam To Road

(vi)        Construction of sewer and storm drain

(vii)      Construction of noise barrier

 

12.2.2    According to the information provided by Sang Hing, the forthcoming construction activities for Contract 2 are listed below:

Ÿ   Construction of Manhole, gullies, drainage pipe at Lin Ma Hang Road between CH565-675 Northbound & CH1265-1345 Southbound.

Ÿ   Man Kam To Road DN800 DI Sewerage Pipe FM4.18-FM4.21 (50m)

Ÿ   Filling works for slope FS18 (Part A1) & backfilling of Retaining Wall 13

Ÿ   Piling Works for Retaining Wall 14

Ÿ   Soil Nail Works at Lin Ma Hang Road Slope C225 & C231

Ÿ   Fanling Station Road covered walkway

 

12.3      Key Issues for the Coming Month

12.3.1    Key issues to be considered in the coming month for the works of Contract 1 include:

Ÿ   Implementation of control measures for rainstorm;

Ÿ   Regular clearance of stagnant water during wet season;

Ÿ   Implementation of dust suppression measures at all times;

Ÿ   Potential wastewater quality impact due to surface runoff;

Ÿ   Potential fugitive dust quality impact due from the dry/loose/exposure soil surface/dusty material;

Ÿ   Ensure dust suppression measures are implemented properly;

Ÿ   Sediment catch-pits and silt removal facilities should be regularly maintained;

Ÿ   Discharge of site effluent to the nearby wetland is prohibited;

Ÿ   Nearby wetland prohibited stockpiling and/or disposal of materials;

Ÿ   Follow-up of improvement on general waste management issues; and

Ÿ   Implementation of construction noise preventative control measures.

 

12.3.2    The Contractors are reminded to pay special attention on water quality mitigation measures and should fully implement the measures as recommended in the EM&A Manual, in particular to prevent surface runoff and other pollutants from flowing to local stream and Conservation Area.  The implementation of water quality mitigation measures conducted by the Contractors is shown in Appendix O.

 

 


13.  Conclusions and Recommentations

13.1      Conclusions

13.1.1    This is the 24th Monthly EM&A Report presenting the monitoring results and inspection findings for the period of 1st to 31st July 2020.

 

13.1.2    No 24-hour or 1-hour TSP monitoring result that triggered the Action or Limit Levels was recorded.  No NOEs or the associated corrective action was therefore required.

 

13.1.3    No noise complaint (which is an Action Level exceedance) was received and no construction noise measurement result that exceeded the Limit Level was recorded in this Reporting Month.  No NOEs or the associated corrective actions were therefore issued.

 

13.1.4    For water quality monitoring, a total of 7 Limit Level exceedances and no Action Level were recorded In the Reporting Period.  NOE were issued to relevant parties and the investigation has been conducted by ET. Investigation revealed that the Contractor had implemented water quality mitigation measures and the exceedances were related the rainstorm and not caused by the work under the project.

 

13.1.5    Monthly ecological monitoring for sensitive habitat for area of Contract 1 and Contract 2 were undertaken on 7th July 2020.  As advised by both Contractors, there were no vegetation clearance conducted within the site in the Reporting Month and therefore precautionary check for the presence of nesting birds was not required.

 

13.1.6    Landscape and visual inspection at both Contracts were undertaken by the RLA on 21st July 2020.  The Contractor was reminded to prevent the construction material pile within TPZ and ensure no works is allowed within the TPZ.

 

13.1.7    In the Reporting Month, no environmental complaint, summons and prosecution was received.  In addition, no complaints received and emergency events relating to violation of environmental legislation for illegal dumping and landfilling were received.

 

13.1.8    In the Reporting Month, joint site inspections for Contract 1 to evaluate the site environmental performance were carried out by the RE, ET and the Contractor on 2nd, 9th, 16th, 23rd and 30th July 2020 and IEC attended joint site inspection on 16th July 2020.  No non-compliance was noted.

 

13.1.9    Joint site inspections for Contract 2 to evaluate the site environmental performance carried out by the RE, ET and the Contractor was on 2nd, 9th, 16th, 23rd and 30th July 2020 and IEC attended joint site inspection on 16th July 2020. No non-compliance was noted.

 

13.2      Recommendations

13.2.1    The Contractors are reminded to pay special attention on water quality mitigation measures and should fully implement the measures as recommended in the EM&A Manual, in particular to prevent surface runoff and other pollutants from flowing to local stream and Conservation Area.

 

13.2.2    Air quality mitigation measures such as wheel wash facilities, watering of haul roads, loose soil construction surface and covering of dusty materials with tarpaulin sheet should be implemented as far as practicable.

 

13.2.3    Construction noise would be a key environmental issue during construction phase of the Project.  Noise mitigation measures such as using quiet plants and mobile noise barriers should be implemented in accordance with the EM&A requirement.

 

13.2.4    Since some of the construction site under the Project is located near villages, both Contractors should fully implement air quality mitigation measures to reduce construction dust emission.

 

13.2.5    Furthermore, daily cleaning and weekly tidiness shall be properly performed and maintained. In addition, mosquito control should be performed to prevent mosquito breeding on site.