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                                            

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                      Future Key Issues                                                                 

8.1                   Key Issues for the Coming Month                                 

8.2                   Construction Programme                                                

9                      Conclusions                                                                            


 

LIST OF TABLES

Table 2.1      Summary of Construction Activities Undertaken in the Reporting Period

Table 2.2      Summary of Environmental Licensing, Notification and Permit Status

Table 5.1      Quantities of Waste Generated from the Project

Table 8.1      Construction Works to be undertaken in the Next Reporting Period

 

 LIST OF ANNEXES

Annex A

Location of Project

Annex B

Works Location

Annex C

Construction Programme for the Project

Annex D

Project Organization Chart and 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 report

 

EXECUTIVE SUMMARY

The construction works of No. EP/SP/61/10 Organic Resources Recovery Centre Phase 1 (the Project) commenced on 21 May 2015.  This is the 40th monthly Environmental Monitoring and Audit (EM&A) report presenting the EM&A works carried out during the period from 1 to 30 September 2018 in accordance with the EM&A Manual.

Summary of Construction Works undertaken during the Reporting Month

Works undertaken in the reporting month included:

·       Building 1 – ABWF/finishing works and BS installation;

·       Building 2 & 3 – ABWF/finishing works and BS installation;

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

·       BS works (MVAC, FS, P/D);

·       Landscaping works;

·       Systems being operated – waste reception, pre-treatment, CAPC extraction, the digesters, the centrifuge, the desulphurisation, the emergency flare, the CHPs, the ASP and the biological wastewater treatment plant; and

·       Process commission in progress-waste reception, pre-treatment, CAPC 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 60-80 t/d SSOW input).

 

Environmental Monitoring and Audit Progress

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

·      Joint Environmental Site Inspections

4 times

·      Landscape & Visual Inspections

2 times

 

 

Odour

Odour patrol were conducted by representatives of the Contractor, the ER and Employer (EPD Project Team) on 3, 5, 7, 10, 12, 14, 17, 19, 21, 24, 26 and 28 September 2018.   The Independent Odour Patrol Team, ALS Technichem (HK) Pty Ltd (ALS), has also joined the odour patrols on 10 and 28 September 2018.  No Level 2 Odour Intensity was recorded during odour patrols.

On 31 August 2018, air samples were also collected from the outlet of the CAPC unit by an independent laboratory (ALS) for olfactometry analysis at the laboratory.  The odour levels of the samples exceeded the odour limit stated in Table 2.2 of the EM&A Manual.

On 28 September 2018, air samples were collected from the outlet of the CAPC unit by ALS for measurement for olfactometry analysis at the laboratory.  The results are not yet available at the time when this report was prepared.  The results will be presented in the next monthly EM&A report.

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).

Inert C&D materials (public fill) include bricks, concrete, building debris, rubble and excavated spoil. In total, 765.70 tonnes of inert C&D material were generated from the Project, of which 325.00 tonnes were reused in this Contract. The 440.70 tonnes of inert C&D material were disposed of as public fill to the Fill Banks at Tuen Mun Area 38.

Non-inert C&D materials (construction wastes) include metals, paper / cardboard packaging waste, plastics and other wastes such as general refuse.  10,600.00 kg of metals, 4,500.00 kg of papers/ cardboard packing and 0.00 kg of plastics were sent to recyclers for recycling during the reporting period.  41.82 tonnes of general refuse was disposed of at the landfill.

0.00 L of chemical waste was collected by licenced waste collector.

Environmental Site Inspection

Four weekly joint environmental site inspections were carried out by the representatives of the Contractor, ER, IC and the ET.  The IEC was also present at the joint inspection on 19 September 2018.  Details of the audit findings and implementation status of the mitigation measures are presented in Section 6.1.

Landscape & Visual

On-site inspections on landscape and visual mitigation measures were performed on 3 and 17 September 2018.  Details of the audit findings and implementation status of the mitigation measures are presented in Sections 6.2.

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

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

No non-compliance event related to odour was received during the reporting period. 

No summon/prosecution was received in this reporting period but one odour complaint was received.

Future Key Issues

Works to be undertaken in the next reporting month include:

·       Building 1 - ABWF/finishing works and BS installation;

·       Building 2 & 3 - ABWF/finishing works and BS installation;

·       Electrical installation (cable trays, Local Control panels/switch installation, general cabling works);

·       BS works (MVAC, FS, P/D);

·       Landscaping works;

·       Continue testing and process commissioning works.

 

Environmental impacts arising from the above construction activities are mainly associated with odour, construction noise, site runoffs, waste management and landscaping issues.


 

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 40th EM&A report which summarises the monitoring results and audit findings for the EM&A programme during the reporting period from 1 to 30 September 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 the background and scope of the Project, site description, project organization, construction programme, construction works undertaken and status of the Environmental Permits (EP)/licences over the construction phase of the Project.

 

Section 3:   Environmental Monitoring Requirements

It summarises the environmental monitoring requirements including monitoring parameters, programmes, methodologies, frequency, locations, Action and Limit Levels, Event/Action Plans, environmental mitigation measures as recommended in the EM&A Manual and approved EIA report.

 

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, environmental complaints and summons received within the reporting period.

 

Section 8:   Further Key Issues

It summarises the impact forecast and monitoring schedule for the next reporting month.

 

Section 9:   Conclusions

 

2                                          Project information

2.1                                   Background

The Organic Resources Recovery Centre (ORRC) Phase I development (hereinafter referred to as “the Project”) 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 Phase 1 (Contract No. EP/SP/61/10 Organic Resources Recovery Centre (Phase 1) (the Contract)) 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 Project Site is illustrated in Annex A.

2.3                                   Construction Activities

A summary of the major construction activities undertaken in the reporting period is shown in 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                 

·                     Building 1 – ABWF/finishing works and BS installation;

·                     Building 2 & 3 – ABWF/finishing works and BS installation;

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

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

·                     Landscaping works;

·                     Systems being operated – 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;

·                     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 60-80 t/d SSOW input).

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/ Licences/ 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 – 31 May 2020

Approved on 21 May 2015

Construction Noise Permit – P1&P2

GW-RW0229-18

(Superseded CNP GW- RW0637-17)

21 July 2018 - 20 January 2019

Approved on 19 June 2018

Construction Noise Permit – P3

GW-RW0184-18

(Superseded CNP GW-RW0565-17)

1 June 2018 – 30 November 2018

Approved on 17 May 2018

Construction Noise Permit – P5 (Slope)

GW-RW0107-18

30 March 2018 – 29 September 2018

Approved on 20 March 2018

Construction Noise Permit – P5 (Slope)

GW-RW0347-18

(Superseded the GW-RW0107-18)

30 September 2018 – 29 March 2019

Approved on 15 August 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.

Odour patrols were conducted by representatives of the Contractor, the ER and Employer (EPD Project Team) on 3, 5, 7, 10, 12, 14, 17, 19, 21, 24, 26 and 28 September 2018.  The Independent Odour Patrol Team, ALS Technichem (HK) Pty Ltd (ALS), has also joined the odour patrols on 10 and 28 September 2018.  The officially odour patrol results for 28 September 2018 from ALS are not yet available at the time when this report was prepared.  The results will be presented in the next monthly EM&A report.  According to the EM&A Manual and EP requirements, 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.

On 28 September 2018, air samples were also collected from the outlet of the CAPC unit by ALS for measurement of the odour level by olfactometry analysis at the laboratory.  The monitoring results are not yet available at the time when this report was prepared.  The results will be presented in the next monthly EM&A report.

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 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

September 2018

765.7 tonnes

15,100.00 kg

41.82 tonnes

0.00 L

Notes:

(a)   Inert C&D materials (public fill) include bricks, concrete, building debris, rubble and excavated spoil.  In total, 765.70 tonnes of inert C&D material were generated from the Project, of which 325.00 tonnes were reused in this Contract and the 440.70 tonnes were disposed as public fill to the Fill Bank 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)    10,600.00 kg of metals, 4,500.00 kg of papers/ cardboard packing and 0.00 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

Joint site inspections were conducted by representatives of the Contractor, the ER, IC and the ET on 3, 11, 19 and 26 September 2018.  The IEC was also present at the joint inspection on 19 September 2018.  Follow-up actions resulting from the last site inspections were generally taken as reported by the Contractor.

Key observations during the reporting period are summarised as follows:

3 September 2018

·       Stagnant water was observed on Building 1 roof and the Contractor was advised to remove the stagnant water to prevent mosquito breeding.

11 September 2018

·       No particular observation during this reporting period.

19 September 2018

·      The Contractor was reminded to remove the waste in waste skip more frequently to avoid or minimise odour and flies.

·      Insufficient cleaning inside the Building 1 and many flies were observed near Building 1.  The Contractor was advised to enhance the cleaning to improve the tidiness and hygiene of Building 1, and close the door of Building 1 properly to prevent the flies (if any) from escaping from the building.  The Contractor should also increase the frequency of pest control if excessive number of flies were found.

·      Leakage of wastewater was observed in Building 1, but the wastewater did not get to the surface channel.  The Contractor was advised to enhance the prevention measures to avoid reoccurrence of such leakage and to prevent the wastewater from getting to the surface channel.

26 September 2018

·       A used carbon filter was found on the ground near Building 2, and the Contractor was advised to remove the carbon filter to avoid potential contamination of surface runoff in the area if it rains.

6.2                                   Landscape and Visual Audit

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.  On-site inspections of the landscape and visual mitigation measures were performed on 3 and 17 September 2018.

It was confirmed that the necessary landscape and visual mitigation measures as summarised in Annex E were generally implemented by the Contractor.    No specific observation was found during site inspection on 3 September 2018.  During the 17 September inspection, three trees (labelled T35, T10425 and T10448) were found felled down due to typhoon Mangkhtu on 16 September 2018, and they were subsequently removed by the Contractor.

 

7                                          Environmental Non-conformance

7.1                                   Summary of Environmental Non-Compliance

No non-compliance event was received during the reporting period.

7.2                                   Summary of Environmental Complaint

One odour complaint was received during the reporting period.  During the odour patrol conducted by the ER and OSCAR at about 15:00 hrs on 7 September 2018 (Friday), the patrol team received a verbal compliant from a police officer (Mr Cho who works at the Hong Kong Police Siu Ho Wan Vehicle Examination Centre and Weigh Station next to ORRC1) regarding the odour nuisance, flies and mosquitos at the compound.  The investigation report is presented in Annex I.  The complaint was also registered in the cumulative environmental complaint log (see 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                                          Future Key Issues

8.1                                   Key Issues for the Coming Month

Works to be undertaken for the coming reporting period are summarised in Table 8.1.

Table 8.1        Construction Works to be undertaken in the Next Reporting Period

Construction Activities Undertaken

·                Building 1 – ABWF/finishing works and BS installation;

·                Building 2 & 3 – ABWF/finishing works and BS installation;

·                Electrical installation (cable trays, Local Control panels/switch installation, general cabling works);

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

·                Landscaping works;

·                Continue the testing and process commissioning works.

Potential environmental impacts arising from the above construction activities will be mainly associated with odour, construction noise, site runoffs, waste management and landscaping issues.

8.2                                   Construction Programme

The most up-to-date construction programme for the Project is presented in Annex C.

 

9                                          Conclusions

This EM&A Report presents the EM&A programme undertaken during the reporting period from 1 to 30 September 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 patrols 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 31 August 2018 and 28 September 2018, respectively.  The odour level of the samples collected on 31 September 2018 have exceeded the odour limit.  An investigation of the cause of the exceedance is being carried out. 

Results for odour samples collected on 28 September 2018 are not yet available at the time this report was prepared.  Results will be reported and discussed in the next monthly EM&A report.

Bi-weekly landscape and visual monitoring was conducted in the reporting period.  The necessary landscape and visual mitigation measures recommended in the EIA Report were generally implemented by the Contractor.  During typhoon Mangkhtu on 16 September 2018, three trees (labelled T35, T10425 and T10448) were impacted and felled.  It was found on 17 September 2018 and the felled trees were subsequently removed.

No non-compliance event related to odour was received during reporting period. 

No summon/prosecution was received but one odour complaint was received during the reporting period.  The investigation report is shown in Annex I.

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