ERM...ERM Our Reference: 0529357_let_EPD_Proposal of Alternative Monitoring...

ERM 2507, 25/F

One Harbourfont,

18 Tak Fung Street

Hunghom, Kowloon,

Hong Kong

Telephone: +852 2271 3000

Fax: +852 2723 5660

www.erm.com

of 2

Registered office

ERM-Hong Kong, Limited 2507, 25/F One Harbourfont, 18 Tak Fung Street Hunghom, Kowloon, Hong Kong

Offices worldwide A member of the

ERM Group

18 June 2020

Environmental Protection Department

Environmental Assessment Division

27/F Southorn Centre

130 Hennessy Road

Wan Chai, Hong Kong

Attn: Mr Tsui Kong Tai, Ken (by Email and Hand)

Our Reference: 0529357_let_EPD_Proposal of Alternative Monitoring

Location_202006018_v2.docx

Dear Ken,

Central Police Station Conservation and Revitalisation Project

(Environmental Permit No. EP-408/2011/C)

Proposal of Alternative Noise Monitoring Location for Construction EM&A Programme

Ho Fook Building (N2/NM2) and Chancery House (N5) are the noise monitoring stations for the

construction phase EM&A programme as identified in the approved EM&A Manual for the

Project. Prior to the commencement of the construction of the Project in 2011, access to N5 was

denied and thus the baseline noise monitoring and impact noise monitoring was carried out at

the adjacent building, Chancery Mansion (N6/NM6), until the temporary suspension of the

construction EM&A programme in May 2018. As the recovery works at Block 4 will commence

on 15 June 2020, the construction EM&A programme and the associated construction noise

monitoring needs to be resumed. However, based on a site visit conducted by the ET on 28 May

2020, no access could be obtained at N2/NM2 or N5 as no security guard and owners’

corporation (OC) were found. N6/NM6 was found demolished and under re-construction.

A search for alternative noise monitoring locations along Old Bailey Street and Chancery Lane

was carried out by the ET on 28 May 2020. The ET has identified that the 2nd floor of Block 3 at

Tai Kwun (N2a) and outside the boundary wall of Tai Kwun along Chancery Lane (N5a) are

appropriate alternative noise monitoring locations for N2/NM2 and N6/NM6, respectively. ET’s

proposal on alternative monitoring locations (the Proposal) and relevant justifications are

enclosed for your review. The Proposal has been approved by the Jockey Club CPS Limited

(JCCPS) and Authorised Person (AP), and verified by the Independent Environmental Checker

(IEC) of the Project. JCCPS and AP’s agreement and IEC’s verification letter are enclosed for

your reference.

On behalf of the JCCPS, we are pleased to submit 3 hard copies of the captioned proposal for

your approval under Condition 3.1 of EP-408/2011/C. A CD containing the soft copy of the

captioned proposal (in pdf format) is also enclosed.

ERM Our Reference:

0529357_let_EPD_Proposal of

Alternative Monitoring


of 2

Should you require any further information or clarification, please do not hesitate to contact the

undersigned.

Yours faithfully,

For ERM-Hong Kong, Limited

Mandy To

ET Leader

Direct Tel: (852) 2271 3313

Fax: (852) 2723 5660

E-mail: [email protected]

Encls.

ET’s proposal on alternative noise monitoring locations

IEC’s verification letter

cc. HKJC (Attn: Mr Henry Fung, Mr Kenneth Lee – by email) Atkins (Attn: Mr Keith Chau – by email) Rocco (Attn: Mr Charles Kung – by email)

mailto:[email protected]

Your ref.

0529357_let_Atkins_Proposal of Alternative Monitoring Location_20200615_v2.docx

Our ref. 5197395 /18.30/OC003/KC

Date: 17 June 2020

By Email ([email protected]) ERM-Hong Kong Limited, 2507, 25/F, One Harbourfront, 18 Tak Fung Street Hunghom, Kowloon, Hong Kong

Attn: Ms Mandy To Dear Mandy, RE: Central Police Station Conservation and Revitalisation Project (Environmental Permit No. EP-408/2011/C) Proposal of Alternative Noise Monitoring Location for Construction EM&A Programme We refer to your submission dated on 15 June 2020 regarding the Proposal of Alternative Noise Monitoring Location for Construction EM&A Programme for Central Police Station Conservation and Revitalisation Project justified by the ET Leader. Atkins China Limited verifies, in the capacity of Independent Environmental Checker, that the submission in accordance with Condition 3.1 of the Environmental Permit No. EP-408/2011/C. Yours faithfully, for and on behalf of Atkins China Limited

Keith Chau Independent Environmental Checker

c.c. HKJC – Mr. Kenneth Lee (By Email)

1

Chris Hoi

Subject: FW: CPS Block 4 EM&A - Proposal for Alternative Noise Monitoring Locations

From: Charles Kung <[email protected]> Sent: Thursday, June 18, 2020 1:02 PM To: Chris Hoi <[email protected]>; '[email protected]' ([email protected]) <[email protected]> Cc: [email protected]; Frank Wan <[email protected]>; Wong, Wing <[email protected]>; Keung, Eva ([email protected]) <[email protected]>; [email protected]; 'Chau, Keith' ([email protected]) <[email protected]>; Mandy To <[email protected]> Subject: RE: CPS Block 4 EM&A - Proposal for Alternative Noise Monitoring Locations Dear Chris, We agree with your proposal for alternative noise monitoring locations. Best Regards, Charles Kung Director D (852) 2863 2395 T (852) 2528 0128 W www.rocco.hk

Rocco Design Architects Associates Ltd Rocco Design Architects Ltd

From: Chris Hoi [mailto:[email protected]] Sent: Thursday, June 18, 2020 12:27 PM To: Charles Kung; '[email protected]' ([email protected]) Cc: [email protected]; Frank Wan; Wong, Wing; Keung, Eva ([email protected]); [email protected]; 'Chau, Keith' ([email protected]); Mandy To Subject: FW: CPS Block 4 EM&A - Proposal for Alternative Noise Monitoring Locations Dear Charles, Please find attached the proposal for alternative noise monitoring locations which has been verified by the IEC. Grateful if you could confirm, in the capacity of Authorised Person (AP), that you agree to the proposal. Best Regards, Chris

1

Chris Hoi

From: Anita Lo <[email protected]>Sent: Thursday, June 18, 2020 3:59 PMTo: Kenneth Lee; Chris Hoi; Charles Kung ([email protected]) ([email protected])Cc: FUNG, Henry K C; Frank Wan; Wong, Wing; Keung, Eva ([email protected]);

[email protected]; 'Chau, Keith' ([email protected]); Mandy To

Subject: RE: CPS Block 4 EM&A - Proposal for Alternative Noise Monitoring LocationsAttachments: OC003-Proposal of Alternative Monitoring Location_v1.pdf; 0529357

_let_Atkins_Proposal of Alternative Monitoring Location_20200615_....pdf; 0529357_RTCs_Proposal of Alternative Monitoring Location.pdf

Dear Kenneth I agreed with the alternative locations. Thanks. ANITA LO The Jockey Club CPS Limited T +852 3955 1080

From: LEE, Kenneth M L <[email protected]> Sent: Thursday, June 18, 2020 12:40 PM To: Chris Hoi <[email protected]>; Charles Kung ([email protected]) ([email protected]) <[email protected]>; Anita Lo <[email protected]> Cc: FUNG, Henry K C <[email protected]>; Frank Wan <[email protected]>; Wong, Wing <[email protected]>; Keung, Eva ([email protected]) <[email protected]>; [email protected]; 'Chau, Keith' ([email protected]) <[email protected]>; Mandy To <[email protected]> Subject: RE: CPS Block 4 EM&A - Proposal for Alternative Noise Monitoring Locations Dear Anita, As discussed, please kindly acknowledge the alternative location of the noise measuring on behalf of JCCPSS. Hi Chris, Anita is our Head of Tai Kwun FM, she will reply to you shortly. Thank you. Regards, Kenneth Lee Senior Project Manager The Hong Kong Jockey Club (852) 3955 1095 |9046 8671

ERM 2507, 25/F

One Harbourfont,

18 Tak Fung Street

Hunghom, Kowloon,

Hong Kong

Telephone: +852 2271 3000

Fax: +852 2723 5660

www.erm.com

Page 1 of 3

Registered office ERM-Hong Kong, Limited 2507, 25/F

One Harbourfont, 18 Tak Fung Street Hunghom, Kowloon, Hong Kong

Offices worldwide A member of the ERM Group

15 June 2020

Atkins China Limited

13th Floor Wharf T&T Centre

Harbour City, Tsim Sha Tsui

Kowloon, Hong Kong

Attn: Mr Keith Chau (by Email)

Our Reference: 0529357_let_Atkins_Proposal of Alternative Monitoring


Dear Keith,

Central Police Station Conservation and Revitalisation Project

(Environmental Permit No. EP-408/2011/C)

Proposal of Alternative Noise Monitoring Location for Construction EM&A Programme

Ho Fook Building (N2/NM2) and Chancery House (N5) are the noise monitoring stations for the

construction phase EM&A programme as identified in the approved EM&A Manual for the

Project. Prior to the commencement of the construction of the Project in 2011, access to N5 was

denied and thus the baseline noise monitoring and impact noise monitoring was carried out at

the adjacent building, Chancery Mansion (N6/NM6), until the temporary suspension of the

construction EM&A programme in May 2018. Based on a site visit conducted by the ET on 28

May 2020, no access could be obtained at N2/NM2 or N5 as no security guard and owners’

corporation (OC) were found. N6/NM6 was found demolished and under re-construction. A

search for alternative noise monitoring locations along Old Bailey Street and Chancery Lane was

carried out during the site visit on 28 May 2020.

The findings for the alternative noise monitoring locations are summarised in Figure 1.1 and

Table 1.

The 2nd floor of Block 3 at Tai Kwun (N2a), which is located away from restaurants, is found

suitable and available to be an alternative noise monitoring location for N2/NM2. As N2a is

located relatively close to N2/NM2 (about 30m apart), the noise environment at N2/NM2 and N2a

is expected to be similar and the baseline noise level at N2/NM2 presented in the Baseline Noise

Monitoring Report for the Project is considered applicable to N2a. Also, N2a, which has a direct

line of sight towards Block 4 (where construction works will be carried out and likely to have

noise impacts), is located closer to Block 4 than N2/NM2 and thus considered as a

representative noise monitoring location. Care will also be taken to minimise disturbance to

tenants of Tai Kwun on the 2nd floor of Block 3. It is confirmed that N2a has fulfilled the

requirements on noise monitoring locations stated in the approved EM&A Manual. Measurement

will avoid any extraneous noise from public and music events within Taikwun. It is considered as

façade noise measurement at N2a and correction to the noise monitoring results is not required.

ERM Our Reference:

0529357_let_Atkins_Proposal of



Page 2 of 3

No suitable buildings for noise monitoring was found along Chancery Lane. A microphone is

proposed to be set up approximately 6-7m above ground near the boundary wall of Tai Kwun

(N5a), about 1m above boundary wall, as alternative noise monitoring location for N5. As N5,

N6/NM6 and N5a are located relatively close to one another (within 30m apart), the noise

environment at N5, N6/NM6 and N5a is expected to be similar and the baseline noise level at

N6/NM6 presented in the Baseline Noise Monitoring Report for the Project is considered

applicable to N5a. Care will be taken to minimise disturbance to occupants/ residents along

Chancery Lane. It is confirmed that the condition at N5a has followed the requirements stated in

the approved EM&A Manual. Measurement will avoid any extraneous noise from public and

music events within Taikwun. As the nearest reflective surface of the buildings across Chancery

Lane is at least 8m away, noise measurement at N5a will be considered as free-field and a

correction of +3dB(A) would be made to the noise monitoring results.

The proposed changes of noise monitoring locations are summarised in the table below.

Monitoring Location ID Type of

Measurement

Remarks

Rooftop of Ho Fook

Building

N2/

NM2

Façade Baseline noise monitoring in September 2011

and weekly impact noise monitoring from

November 2011 to May 2018 were conducted at

this location

Could not obtain access for noise monitoring

based on site visit dated 28 May 2020

Rooftop of Chancery

House

N5 Façade Access denied in September 2011 (no baseline

noise monitoring or weekly impact noise

monitoring were conducted at this location)

Could not obtain access for noise monitoring

based on site visit dated 28 May 2020

Rooftop of Chancery

Mansion

N6/NM6 Façade Identified as alternative location to N5 approved

by the Authorised Person (AP), the Independent

Environmental Checker (IEC) and EPD.

Baseline noise monitoring in September 2011

and weekly impact noise monitoring from

November 2011 to May 2018 were conducted at

this location

The building was demolished and under re-

construction based on site visit dated 28 May

2020

2nd Floor of Block 3 at

Tai Kwun

N2a Façade Identified as alternative location to N2/NM2

Outside of Boundary

Wall of Tai Kwun at

Chancery Lane

N5a Free field Identified as alternative location to N5

In accordance with EP Condition 3.1 of EP-408/2011/C, Any changes to the EM&A requirements

or programme and termination of the EM&A programme shall be supported with justifications by

the ET Leader and verified by the IEC to their conformance with the requirements as set out in

the EM&A Manual; and the prior approval from the Director shall be sought before their

implementation.

ERM Our Reference:

0529357_let_Atkins_Proposal of



Page 3 of 3

The purpose of this letter is to provide ET’s justification on the proposed alternative noise

monitoring locations for seeking agreement from IEC.

Should you require any further information or clarification, please do not hesitate to contact the

undersigned.

Yours faithfully,

For ERM-Hong Kong, Limited

Mandy To

ET Leader

Direct Tel: (852) 2271 3313

Fax: (852) 2723 5660

E-mail: [email protected]

cc. HKJC (Attn: Mr Henry Fung, Mr Kenneth Lee – by email)

mailto:[email protected]

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EnvironmentalResourcesManagement

Locations of Noise Monitoring

Figure 1.1

File: T:\GIS\CONTRACT\0529357\mxd\0529357_Monitoring_Station.mxdDate: 12/6/2020

Legend

Project Site (Block 4)

Block 3

!(Original Noise Monitoring Location

!(Proposed Alternative Noise Monitoring Location

0 5025Metres´

Table 1 – Findings for Alternative Noise Monitoring Locations

ID. Locations Observations and findings 1 Chancery Mansion (N6/NM6)

The building had been demolished.

2 Chancery House (N5)

Gate was found locked during the site visit. No Security

guard and no OC. Access cannot be obtained.

3 The Mood Soho Podium was found lower than boundary wall of Tai Kwun. It

is considered not suitable for noise monitoring. It is a private

property.

4 Tung Yuen Building Property management office had declined access as it is a

private property.

5 Cambridge Villa Property management office had declined access as it is a

private property.


ID. Locations Observations and findings 6 11, 20-26 Chancery Lane It had been demolished.


ID. Locations Observations and findings 7 Outside of Boundary Wall of Tai Kwun at Chancery Lane (N5a)

(Proposed alternative noise monitoring location for N5)

Due to accessibility problem at all possible noise monitoring

locations along Chancery Lane, microphone is proposed to be

set up approximately 6-7m above ground near the boundary

wall of Tai Kwun (N5a) (about 1m above boundary wall).

In accordance with ISO 1996-2:2007 - Acoustics - Description,

measurement and assessment of environmental noise - Part 2:

Determination of sound pressure levels, free-field microphone

position is where there are no reflecting surfaces other than the

ground close enough to influence the sound pressure level.

The measurement location (N5a) is more than ~8m away from

the nearest reflective surface of the buildings across Chancery

Lane (as shown in figure below), and therefore, it is considered

as free-field noise measurement.


ID. Locations Observations and findings

8 7, 11, 13, 15, 17 Old Bailey Street Gates were found locked during the site visit. No Security

guard and no OC. Access cannot be obtained.

9 Ho Fook Building (N2/NM2)

A gate was found during the site visit. No Security guard and

no OC. Access cannot be obtained.

10 Hollywood Commercial House Property management office had declined access as it is private

property.

11 20 Hollywood Road Access was declined by the owner and it was found blocked by

Block 1 of TaiKwun.

~ 8m


ID. Locations Observations and findings 12 2/F of Block 3 at TaiKwun (N2a)

(Proposed alternative noise monitoring location for N2/NM2)

Due to accessibility for the possible noise monitoring locations

along Old Bailey Street, 2/F of Block 3 at TaiKwun (N2a) has

been proposed which is near the shops and away from

restaurants at TaiKwun. It is also near the original noise

monitoring location N2/NM2.

N2a is located at approximately 1m away from the building

façade (as shown in the photo below) and thus it is considered

a façade noise measurement.

~1m


ID. Locations Observations and findings

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