Contents

Executive Summary                                                              

1                      introduction                                                                           

1.1                   Purpose of the Report                                                      

1.2                   Structure of the Report                                                  

2                      Project information                                                           

2.1                   Background                                                                            

2.2                   General Site Description                                                  

2.3                   Construction Activities                                                    

2.4                   Project Organisation and Management Structure

2.5                   Status of Environmental Approval Documents   

3                      Environmental Monitoring Requirement, environmental Mitigation Measures                                                                                  

4                      Implementation Status on Environmental Protection Requirements 

5                      Waste Management                                                              

6                      Environmental Inspections                                             

6.1                   Weekly Site Audits                                                               

6.2                   Landscape and Visual Audit                                            

6.3                   Effectiveness of Mitigation Measures and Monitoring  

7                      Environmental Non-conformance                               

7.1                   Summary of Environmental Non-Compliance          

7.2                   Summary of Environmental Complaint                      

7.3                   Summary of Environmental Summon and Successful Prosecution      

8                      Conclusions                                                                            

 

LIST OF TABLES

Table 2.1 Summary of Construction Activities undertaken in Reporting Period

Table 2.2 Summary of Environmental Licensing, Notification and Permit Status

Table 5.1 Quantities of Waste Generated from the Project

 

LIST OF ANNEXES

Annex A

Location of Project

Annex B

Works Location

Annex C

Construction Programme for the Project

Annex D

Project Organization Chart with Contact Detail

Annex E

Implementation Schedule of Mitigation Measures

Annex F

Waste Flow Table

Annex G

Environmental complaint, Environmental Summons and Prosecution Log

Annex h

odour monitoring result

Anenx i

investigation reprot

 

EXECUTIVE SUMMARY

The construction works of No. EP/SP/61/10 Organic Resources Recovery Centre (Phase I) (the Project) commenced on 21 May 2015.  This is the thirteenth quarterly Environmental Monitoring and Audit (EM&A) summary report presenting the EM&A works carried out during the period from 1 June 2018 to 31 August 2018 in accordance with the EM&A Manual.

Environmental Monitoring and Audit Progress

A summary of the monitoring activities undertaken in this reporting period is listed below:

 

íP       Joint Environmental Site Inspection

13 times

íP       Landscape & Visual Monitoring

7 times

Odour

Odour patrol were conducted by representatives of the Contractor, the ER and Employer (EPD Project Team) during reporting period.  No Level 2 Odour Intensity was recorded during odour patrols.

Air samples were also collected from the outlet of the CAPC unit by an independent laboratory (ALS) for olfactometry analysis at the laboratory on 27 July 2018 and 31 August 2018, respectively. The odour level of the samples collected on 31 August 2018 have exceeded the odour limit stated in Table 2.2 of the EM&A Manual.  An investigation of the cause of the exceedance is being carried out.

Waste Management

Waste generated from this Project includes inert construction and demolition (C&D) materials (public fill) and non-inert C&D materials (construction wastes). 

Environmental Exceedance/Non-conformance/Compliant/Summons and Prosecution

One exceedance related to odour was recorded during the reporting period.

Two incidents occurred during the reporting period.  The incidents did not lead to adverse environmental impacts.

No environmental complaint and summon/prosecution was received in this reporting period.

 


 

 

1                                            introduction

ERM-Hong Kong, Limited (ERM) was appointed by OSCAR Bioenergy Joint Venture (the Contractor) as the Environmental Team (ET) to undertake the Environmental Monitoring and Audit (EM&A) programme for the Contract No. EP/SP/61/10 of Organic Waste Treatment Facilities Phase I, which the project name has been updated to Organic Resources Recovery Centre (Phase I) (the Project) since November 2017.

1.1                                        Purpose of the Report

This is the thirteenth quarterly EM&A summary report, which summarizes the impact monitoring results and audit findings for the EM&A programme during the reporting period from 1 June 2018 to 31 August 2018.

1.2                                        Structure of the Report

The structure of the report is as follows:

Section 1 :      Introduction

It details the scope and structure of the report.

 

Section 2 :      Project Information

It summarises background and scope of the Project, site description, project organization, construction programme, the construction works undertaken and the status of Environmental Permits (EP)/licences over the construction phase of the Project.

 

Section 3 :      Environmental Monitoring Requirements

It summarises the environmental monitoring including monitoring parameters, monitoring programmes, monitoring frequency, monitoring locations, Action and Limit Levels, Event/Action Plans, environmental mitigation measures as recommended in the approved EIA report, EP and relevant environmental requirements stated in the Contract Specification.

 

Section 4 :      Implementation Status on Environmental Mitigation Measures

It summarises the implementation of environmental protection measures during the reporting period.

 

Section 5 :      Waste Management

It summarises the quantity of public fill and construction waste generated in the reporting period

 

Section 6 :      Environmental Site Inspection

It summarises the audit findings of the weekly site inspections undertaken within the reporting period.

 

Section 7 :      Environmental Non-conformance

It summarises any exceedance of environmental performance standard, and environmental complaints and environmental summons received within the reporting period.

 

Section 8 :      Conclusions

 

2                                              Project information

2.1                                        Background

The Organic Resources Recovery Centre (ORRC) Phase I development (hereinafter referred to as ížthe ProjectíĘ) is to design, construct and operate a biological treatment facility with a capacity of about 200 tonnes per day and convert source-separated organic waste from commercial and industrial sectors (mostly food waste) into compost and biogas through proven biological treatment technologies. 

The environmental acceptability of the construction and operation of the Project had been confirmed by findings of the associated Environmental Impact Assessment (EIA) Study completed in 2009.  The Director of Environmental Protection approved this EIA Report under the Environmental Impact Assessment Ordinance (EIAO) (Cap. 499) in February 2010 (Register No.: AEIAR-149/2010) (hereafter referred to as the approved EIA Report).  Subsequent Report on Re-assessment on Environmental Implications and Report on Re-assessment on Hazard to Life Implications were completed in 2013, respectively.

An Environmental Permit (EP) (No. EP-395/2010) was issued by the Environmental Protection Department (EPD) to the EPD, the Permit Holder, on 21 June 2010 and varied on 18 March 2013 (No. EP-395/2010/A) and 21 May 2013 (No. EP-395/2010/B), respectively.  The Design Build and Operate Contract for the ORRC (Contract No. EP/SP/61/10 Organic Resources Recovery Centre Organic Resources Recovery Centre (Phase I)) was awarded to SITA Waste Services Limited, ATAL Engineering Limited and Ros-Roca, Sociedad Anonima jointly trading as the OSCAR Bioenergy Joint Venture (OSCAR or the Contractor).  A Further EP (No. FEP-01/395/2010/B) was issued by the EPD to the OSCAR on 16 February 2015.  Variation to both EPs No. EP-395/2010/B and No. FEP-01/395/2010/B were made in December 2015.  The latest EPs, No. EP-395/2010/C and No. FEP-01/395/2010/C, were issued by the EPD on 21 December 2015.

Under the requirements of Condition 5 of the EP (No. FEP-01/395/2010/C), an Environmental Monitoring and Audit (EM&A) programme as set out in the Agreement No. CE7/2008 (EP) EM&A Manual (hereinafter referred to as EM&A Manual) is required to be implemented.  ERM-Hong Kong, Ltd (ERM) has been appointed by OSCAR as the Environmental Team (ET) to undertake the EM&A programme for the Contract.

The construction works commenced on 21 May 2015 and are scheduled for completion by October 2018.

 

2.2                                        General Site Description

The Project Site is located at Siu Ho Wan in North Lantau with an area of about 2 hectares. The layout of the upgrading works is illustrated in Annex A.

2.3                                        Construction Activities

A summary of the major construction activities undertaken in the reporting period is shown Table 2.1.  The locations of the construction activities are shown in Annex B.  The construction programme of the Project is presented in Annex C.

Table 2.1        Summary of Construction Activities Undertaken in the Reporting Period

Construction Activities Undertaken

íP           Building 1 íV ABWF/finishing work and BS installation ;

íP           Building 2 & 3 íV ABWF/finishing work and BS installation ;

íP           Electrical installation (cable trays, Local Control panels/switch installation, general cabling works, instrumentation and control installation, lighting , ELV and SCADA installation) ;

íP           GRP ductwork to Building 1 roof and SBT area substantially completed;

íP           Installation of BS Roller Shutters;

íP           Electrical installation (cable trays, Local Control panels/switch installation, general cabling works, instrumentation and control installation, lighting , ELV and SCADA installation);

íP           BS works (MVAC, FS, P/D) ;

íP           Landscaping works;

íP           Boundary fence remaining behind B 2 completed;

íP           Handover of areas to T&C team ongoing and energization. Dry commissioning (a) & wet commissioning (b) in progress;

íP           Systems being operated íV waste reception, pre-treatment, CAPCS extraction, the digesters, the centrifuge, the desulphurization, the emergency flare, the CHPs, the ASP and the biological waste water treatment plant;

íP           Process commissioning in progress - waste reception, pre-treatment, CAPCS extraction, the digesters, the centrifuge, the composting tunnels, the desulphurisation, the emergency flare, the CHPs, the ASP and the biological waste water treatment plant (about 50-80 t/d SSOW input).

Note:

(a)   Dry Commissioning: Refers to individual equipment testing for functionality and reliable operation.

(b)   Wet Commissioning: Refers to the equipment testing with water in manual and automatic mode in the process units, which are ready to operate individually and as part of the process unit as a whole.

2.4                                        Project Organisation and Management Structure

The project organisation chart and contact details are shown in Annex D.

2.5                                        Status of Environmental Approval Documents

A summary of the valid permits, licences, and/or notifications on environmental protection for this Project is presented in Table 2.2.


Table 2.2       Summary of Environmental Licensing, Notification and Permit Status

Permit/ Licenses/ Notification

Reference

Validity Period

Remarks

Environmental Permit

FEP-01/395/2010/C

 

Throughout the Contract

 

Permit granted on 21 December 2015

 

Notification of Construction Works under the Air Pollution Control (Construction Dust) Regulation

Ref No. 386715

Throughout the Contract

-

Effluent Discharge License

WT00021482-2015

21 May 2015 íV 31 May 2020

Approved on 21 May 2015

Construction Noise Permit íV P1&P2

GW-RW0637-17

(Superseded CNP GW-RW0351-17)

21 January 2018íV 20 July 2018

Approved on 14 December 2017

Construction Noise Permit íV P1&P2

GW-RW0229-18

(Superseded CNP GW- RW0637-17)

21 July 2018 - 20 January 2019

Approved on 19 June 2018

Construction Noise Permit íV P3

GW-RW0184-18

(Superseded CNP GW-RW0565-17)

1 June 2018 íV 30 November 2018

Approved on 17 May 2018

Construction Noise Permit íV P5 (Slope)

GW-RW0107-18

30 March 2018 íV 29 September 2018

Approved on 20 March 2018

Chemical Waste Producer Registration

WPN 5213-961-O2231-01

Throughout the Contract

Approved on 29 April 2015

Waste Disposal Billing Account

Account number: 702310

Throughout the Contract

-

3                                              Environmental Monitoring Requirement, environmental Mitigation Measures

All the relevant environmental mitigation measures listed in the EIA Report and EM&A Manual are summarised in Annex E.

According to the EM&A Manual and EP requirement, no air quality, noise and water quality monitoring is required during the construction phase.

According to the EM&A Manual and EP requirement, odour monitoring is required during the commissioning phase.

The odour patrols shall be conducted by an odour patrol team. The odour patrol team will patrol and sniff along an odour patrol route at the site boundary. The implementation of the odour patrol shall be subject to the prevailing weather forecast condition and no odour patrol should be carried out during rainy day. The odour patrol team should be comprised of at least two independent trained personnel / competent persons, who should pass a set of screening tests.

During July 2018, odour patrol were conducted by representatives of the Contractor, the ER and Employer (EPD Project Team) on 3, 4, 6, 10, 12, 13, 16, 18, 20, 23, 25, 27 and 30 July 2018.   The Independent Odour Patrol Team, ALS Technichem (HK) Pty Ltd (ALS), has also joined the odour patrol on 27 July 2018.  According to the EM&A Manual and EP requirement, it is considered an exceedance if the odour intensity recorded by the panellists is Level 2 or above.  During this reporting period, no Level 2 Odour Intensity was recorded.  The odour patrol results are shown in Annex H.

On 27 July 2018, air samples were also collected from the outlet of the Centralised Air Pollution Control (CAPC) unit by ALS for measurement of the Odour Intensity by olfactometry analysis at the laboratory.  According to the EM&A Manual and EP requirements, it is considered an exceedance if the odour level is more than 200 OU/Nm3. During this reporting period, no exceedance was observed.  The laboratory results are shown in Annex H.

During August 2018, Odour patrol were conducted by representatives of the Contractor, the ER and Employer (EPD Project Team) on 1, 3, 6, 8, 10, 13, 15, 20, 22, 24, 27 and 31 August 2018.   The Independent Odour Patrol Team, ALS Technichem (HK) Pty Ltd (ALS), has also joined the odour patrol on 31 August 2018.  According to the EM&A Manual and EP requirement, it is considered an exceedance if the odour intensity recorded by the panellists is Level 2 or above.  During this reporting period, no Level 2 Odour Intensity was recorded.  The odour patrol results are shown in Annex H.

On 31 August 2018, air samples were also collected from the outlet of the Centralised Air Pollution Control (CAPC) unit by ALS for measurement of the Odour Intensity by olfactometry analysis at the laboratory.  According to the EM&A Manual and EP requirements, it is considered an exceedance if the odour level is more than 200 OU/Nm3.  During this reporting period, the odour level of the odour samples collected from the CAPC unit have exceeded the odour limits stated in Table 2.2 of the EM&A Manual.  The monitoring results are shown in Annex H.

Investigation of the exceedance has been conducted.  Odour emitting activities, including wastewater treatment plant and ammonia stripping plant (ASP) were operating on 31 August 2018.  No organic waste were being processed the time the odour samples were being collected, due to pre-treatment line was stopped and only operated at mid night.  The CAPC system was operating during the odour sampling.  The contractor reported that the active carbon (AC) filter and the venture scrubber in Building 2 were operating.  The wet & chemical scrubbers were not operating at the time of the sampling as it is still under testing and commissioning.   The exceedance could be due to saturation of the AC filter as an increase of VOCs concentration was observed. 

The contractor has replaced all AC filter media in the last week of September 2018.  To avoid saturation of the filter media, it is recommended that the contractor should test the medium regularly or indicator medium should be used to provide an indication of the condition of the media.

Bi-weekly landscape and visual audit is required to ensure that the design, implementation and maintenance of landscape and visual mitigation measures recommended in the EIA Report are fully achieved.

4                                              Implementation Status on Environmental Protection Requirements

The Contractor has implemented environmental mitigation measures and requirements as stated in the approved EIA Report and EM&A Manual.  The implementation status of the measures during the reporting period is summarised in Annex E.

5                                              Waste Management 

Wastes generated from this Project include inert construction and demolition (C&D) materials (public fill) and non-inert C&D materials (construction waste).  Construction waste comprises general refuse, metals and paper/cardboard packaging materials.  Metals generated from the Project are also grouped into construction waste as the materials were not disposed of with others at public fill.  Reference has been made to the Monthly Summary Waste Flow Table prepared by the Contractor (see Annex F).  With reference to the relevant handling records and trip tickets of this Project, the quantities of different types of waste generated in the reporting month are summarised in in Table 5.1.

Table 5.1        Quantities of Waste Generated from the Project

Month / Year

Quantity

 

Total Inert C&D Materials Generated (a)

Non-inert C&D Materials (b)

C&D Materials Recycled (c)

C&D Waste Disposed of at Landfill (d) 

Chemical Waste

June 2018

684.10 tonnes

27,210 .00 kg

43.01 tonnes

0.00 L

July 2018

93.99 tonnes

17,420.00 kg

59.77 tonnes

0.00 L

August 2018

528.56 tonnes

73,780.00 kg

44.50 tonnes

0.00 L

Notes:

(a)   Inert C&D materials (public fill) include bricks, concrete, building debris, rubble and excavated spoil.  In total, 1,306.65 tonnes of inert C&D material were generated from the Project, of which 523.5 tonnes were reused in this Contract and the remaining 783.15 tonnes were disposed as public fill to Fill Banks at Tuen Mun Area 38. The detailed waste flow is presented in Annex F.

(b)   Non-inert C&D materials (construction wastes) include metals, paper / cardboard packaging waste, plastics and other wastes such as general refuse.  Metals generated from the Project were grouped into construction wastes as the materials were not disposed of with others at the public fill.

(c)    39,160.00 kg of metals, 49,860.00 kg of papers/ cardboard packing and 29,390.00 kg of plastics were sent to recyclers for recycling during the reporting period.

(d)   Construction wastes other than metals, paper/cardboard packaging, plastics and chemicals were disposed of at NENT Landfill by subcontractors.

 

6                                              Environmental Inspections

6.1                                        Weekly Site Audits

Thirteen site inspections were conducted during the reporting period.  There was no non-compliance recorded during the site inspections.  Follow-up actions were undertaken as reported by the Contractor and observed in the subsequent weekly site inspections conducted in the reporting period.

June 2018

Joint site inspections were conducted by the representatives of the Contractor, ER, IC and ET on 5, 13, 19 and 26 June 2018.  The IEC was also present at the joint inspection on 13 June 2018. 

July 2018

Joint site inspections were conducted by the representatives of the Contractor, ER, IC and ET on 3, 10, 18, 24 and 31 July 2018.  The IEC was also present at the joint inspection on 18 July 2018

August 2018

Joint site inspections were conducted by the representatives of the Contractor, ER, IC and ET on 7, 15, 21 and 28 August 2018.  The IEC was also present at the joint inspection on 15 August 2018. 

6.2                                        Landscape and Visual Audit

Seven landscape and visual monitoring site inspections were conducted during the reporting period.  Follow-up actions needed to be implemented were recommended to the Contractor and the status of the follow-up actions was reviewed during the subsequent weekly site inspections.  It was confirmed that most of the necessary landscape and visual mitigation measures as summarised in Annex E were implemented by the Contractor.

In accordance with the EM&A Manual, bi-weekly landscape and visual inspection is required to ensure that the design, implementation and maintenance of landscape and visual mitigation measures recommended in the EIA Report are fully achieved.  The onsite inspection of the landscape and visual mitigation measures has commenced since June 2015 during weekly site inspections

June 2018

Bi-weekly site inspections were conducted on 11 and 25 June 2018.

July 2018

Bi-weekly site inspections were conducted on on 3, 16 and 30 July 2018

August 2018

Bi-weekly site inspections were conducted on 6 and 20 August 2018.

Key landscape and visual mitigation measures implemented in the reporting period included:

 

íP         Provide insect prevention measures to the exposed root of retained tree to prevent potential damage due to the exposure.

íP         Provide the non-moisture holding material around the trees to prevent potential damage.

íP         Avoid placing machine near the tree protection zone.

6.3                                        Effectiveness of Mitigation Measures and Monitoring

The mitigation measures recommended in the EIA report and required by the EP are considered effective in minimizing environmental impacts.

The EM&A for the Project was conducted as scheduled during the reporting period.  No non-compliance events were observed during site inspections and no exceedances were recorded during this reporting period.  The EM&A programme is considered effective.

7                                              Environmental Non-conformance

7.1                                        Summary of Environmental Non-Compliance

Two incidents occurred during the reporting period.

On 26 July 2018, the incident occurred at Suspension Buffer Tank (SBT) at P1 Building1 of the Site, which a spillage of foam within the bund wall of SBT was observed.  The incident had been investigated and the agreed remedial works and follow-up actions will be completed by the Contractor shortly.  The Investigation Report is shown in Annex I.

On 13 August 2018, the incident occurred at Sequencing Batch Reactor 2 (SBR2) at P1 Building1 of the Site, which some foam was overflowed from the vent of SBR 2 but no wastewater was overflowed.  The incident had been investigated and the agreed remedial works and follow-up actions will be completed by the Contractor shortly.  The Investigation Report is shown in Annex I.

7.2                                        Summary of Environmental Complaint

No complaint was received during the reporting period.  The cumulative environmental complaint log is shown in Annex G.

7.3                                        Summary of Environmental Summon and Successful Prosecution

No summon/prosecution was received during the reporting period.  The cumulative summons/prosecution log is shown in Annex G.

 

 

8                                              Conclusions

This EM&A Report presents the EM&A works undertaken during the reporting period from 1 June 2018 to 31 August 2018 in accordance with EM&A Manual and requirements of EP (FEP-01/395/2010/C). 

No air quality, noise and water quality monitoring is required during the construction phase.

Odour patrol and monitoring are required during the commissioning phase.  No exceedance of odour intensity limit for all odour patrol events.  Air samples were also collected at the CAPC unit for olfactometry analysis at the laboratory on 27 July 2018 and 31 August 2018, respectively. The result are shown in Annex H.  The odour level of the samples collected on 31 August 2018 have exceeded the odour limit.  An investigation of the cause of the exceedance is being carried out.

Bi-weekly landscape and visual monitoring was conducted in this quarterly period.  Most of the necessary landscape and visual mitigation measures recommended in the EIA Report were implemented by the Contractor.  Follow-up actions would be implemented by the Contractor to improve protection measures on the retained or to-be transplanted trees.

Two incidents occurred during reporting period. The Investigation Reports are provided in Annex I.  The incidents did not lead to adverse environmental impact.

No complaint and summons/prosecution was received during the reporting period.

The ET will keep track on the EM&A programme to ensure compliance of environmental requirements and the proper implementation of all necessary mitigation measures in the coming periods.