AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 16 March 2016

Our Ref TCS00694/13/300/F0180a No of Pages 9 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM2B on 2 and 3 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref.: TCS00694/13/300/F0153 dated 2 March 2016, TCS00694/13/300/F0157 dated 3 March 2016 and TCS00694/13/300/F0173 dated 11 March 2016. Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		2 March 2016
Location		WM2B
Time		11:10
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		11.4 AND 120% of upstream control station of the same day	11.8 AND 120% of upstream control station of the same day
Limit Level		12.3 AND 130% of upstream control station of the same day	12.4 AND 130% of upstream control station of the same day
Measured Levels	WM2B-C	3.5	2
Measured Levels	WM2B	Over ranged	1335.0
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site record from the monitoring team during monitoring on 2 March 2016, muddy water was observed at WM2B and throughout the open channel. It is suspected that the muddy water was came from the construction site of North Portal. 2. As advised by CCKJV, construction activities carried out on 2 March 2016 at North Portal (upstream of WM2B) were bored piling and slope work. In normal practice, the wastewater generated from bored piling was recirculated to the nearest AquaSed for treatment and no discharge would be made as far as practicable. However, a pipe carrying wastewater from bored piling to the nearest AquaSed was burst on 2 March 2016 morning and the untreated wastewater were getting into the open channel accidently. 3. CCKJV has immediate halted the bored piling work until the damaged pipe was replaced. Channel clearing was immediately carried out and muddy water in the open channel was pumped back to the AquaSed for treatment and recirculated for bored piling. However, the silt cumulated at the river bed was difficult to remove completely. During channel clearing, part of the muddy water was flowing out of the site and detected at WM2B. 4. It is considered that the exceedances were related to the pipe burst accident. CCKJV was advised to check the condition of connected pipe more frequently and ensure the wastewater treatment a facility is in proper function. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was conducted on 3 March 2016 and turbidity and SS exceedances were triggered too. Although the exceedances were concluded as not project related, CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

AUES

Prepared By : Nicola Hon Designation : Environmental Consultant Signature :

Date :

16 March 2016

AUES

Photo Record

Photo 1 Muddy water was observed at WM2B and throughout the open channel on 2 March 2016.	Photo 2 The water samples collected at WM2B on 2 March 2016 was turbid.
Photo 3 A pipe carrying wastewater from bored piling to the nearest AquaSed was burst on 2 March 2016 morning and the untreated wastewater water were getting into the open channel accidently. AquaSed Pipe bursting point	Photo 4 The muddy water in the open channel was pumped back to the AquaSed for treatment and recirculated for bored piling.
Photo 5 Channel clearing was immediately carried out and muddy water in the open channel was pumped back to the AquaSed for treatment and recirculated for bored piling.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0180a.doc

Action-United Environmental Services & Consulting

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		3 March 2016
Location		WM2B
Time		9:30
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		11.4 AND 120% of upstreamcontrol station of the same day	11.8 AND 120% of upstreamcontrol station of the same day
Limit Level		12.3 AND 130% of upstreamcontrol station of the same day	12.4 AND 130% of upstreamcontrol station of the same day
Measured Levels	WM2B-C	3.9	3.0
Measured Levels	WM2B	20.7	21.0
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 3 March 2016 at North Portal (upstream of WM2B) were bored piling and slope work. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 3 March 2016, very shallow water was measured at WM2B and the water depth was around 0.04m. (Photo 1) Although cumulated silt was observed at the channel bed, the water flowing in the channel and the samples collected at WM2B was visually clear. (Photo 2) Since the water sampling was carried out at the bridge over the drainage channel at shallow water, the sampled water could not avoid inclusion of the loose sediment and debris. 3. As advised by the CCKJV, the wastewater generated from the bored piling was recirculated and no discharge was made. As water mitigation measures, sump pits were constructed under the slopes to divert the site runoff for temporary storage and primarily desilting before divert to the AquaSed. Moreover, the slopes adjacent to channel were covered with tarpaulin sheet and hydro-seeding was carried out on the stabilized slope to minimize muddy runoff. 4. There were no rains recorded on 3 March 2016, therefore, generation of muddy runoff from the site was not likely to occur. In our investigation, it is considered that the exceedances were due to the shallow water and the disturbance of sediment at river bed. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 4 March 2016 and turbidity exceedance was triggered too. Although the exceedance was concluded as not project related, CCKJV should continue fully implement the water

AUES

Prepared By : _{Nicola Hon}

Designation :	Environmental Consultant
Signature :
Date :	16 March 2016

AUES

Photo Record

Photo 1 During water sampling on 3 March 2016, shallow water was observed at WM2B and the water quality at WM2B was visually clear.	Photo 2 The water samples collected at WM2B on 3 March 2016 was visually clear.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0180a.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 16 March 2016

Our Ref TCS00694/13/300/F0181a No of Pages 8 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM2B on 4 and 5 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref.: TCS00694/13/300/F0158 dated 4 March 2016 and TCS00694/13/300/F0163 dated 7 March 2016. Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		4 March 2016
Location		WM2B
Time		10:21
Parameter		Turbidity (NTU)
Action Level		11.4 AND 120% of upstream control station of the same day
Limit Level		12.3 AND 130% of upstream control station of the same day
Measured Levels	WM2B-C	9.5
Measured Levels	WM2B	24.1
Exceedance		Limit Level
Investigation Results,		1. According to the site information provided from the CCKJV,
Recommendations &		construction activities carried out on 4 March 2016 at North Portal
Mitigation Measures		(upstream of WM2B) were bored piling and slope work. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 4 March 2016, very shallow water was measured at WM2B and the water depth was around 0.01m. (Photo 1) Although cumulated silt was observed at the channel bed, the water flowing in the channel and the samples collected at WM2B was visually clear. (Photo 2) Since the water sampling was carried out at the bridge over the drainage channel at shallow water, the sampled water could not avoid inclusion of the loose sediment and debris. 3. As advised by the Contractor, the wastewater generated from the bored pile works was recirculated to the AquaSed for treatment and discharge would be made when the effluent is overflow from the AquaSed. Since discharge license was not yet granted for the Contract, self-monitoring for the effluent quality would be conducted by the Contractor if discharge is required to ensure the discharge effluent complied with the relevant requirements. According to the self-monitoring record by the Contractor on 4 March 2016 the treated water in the AquaSed was visually acceptable. (Photo 3) 4. There were no rains recorded on 4 March 2016, therefore, generation of muddy runoff from the site was not likely to occur. In our investigation, it is considered that the exceedances were due to the shallow water and the disturbance of sediment at river bed. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 5 March 2016 and turbidity exceedances were triggered. CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By : Nicola Hon

Designation : Environmental Consultant

Signature :

Date :

AUES

Photo Record

Photo 1 During water sampling on 4 March 2016, shallow water was observed at WM2B and the water quality at WM2B was visually clear.	Photo 2 The water samples collected at WM2B on 4 March 2016 was visually clear.
Photo 3 The treated water in the AquaSed was visually clear on 4 March 2016.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0181a.doc

Action-United Environmental Services & Consulting

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		5 March 2016
Location		WM2B
Time		10:55
Parameter		Turbidity (NTU)
Action Level		11.4 AND 120% of upstream control station of the same day
Limit Level		12.3 AND 130% of upstream control station of the same day
Measured Levels	WM2B-C	2.6
Measured Levels	WM2B	40.2
Exceedance		Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 5 March 2016 at North Portal (upstream of WM2B) were bored piling and slope work. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 5 March 2016, very shallow water was measured at WM2B and the water depth was around 0.01m. (Photo 1) The water flowing in the channel and the samples collected at WM2B was slightly turbid. (Photo 2) Since the water sampling was carried out at the bridge over the drainage channel at shallow water, the sampled water could not avoid inclusion of the loose sediment and debris. 3. As advised by the CCKJV, channel clearing was carried out on 5 March 2016 to remove the silt cumulated at the channel bed. The turbid water in the open channel was pumped back to the AquaSed for treatment and recirculated for bored piling. However, the silt cumulated at the river bed was difficult to remove completely. During channel clearing, sand bag barrier was provided in the channel to prevent the turbid water flowing further downstream, however, part of the turbid water was flowing out of the site and detected at WM2B. (Photo 3) 4. In our investigation, it is considered that the exceedance was due to the channel cleaning. CCKJV should to ensure the turbid water at the adjacent open channel was entirely blocked by the sand bag barrier or other means to prevent it flowing further downstream before carry out the channel cleaning. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 7 March 2016 no exceedances were triggered. However, CCKJV is reminded continue fully implement the water

AUES

Prepared By : _{Nicola Hon}

Designation :	Environmental Consultant
Signature :
Date :	16 March 2016

AUES

Photo Record

Photo 1 During water sampling on 5 March 2016, shallow water was observed at WM2B and the water quality at WM2B was slightly turbid.	Photo 2 The water samples collected at WM2B on 5 March 2016 was slightly turbid.
Photo 3
Channel cleaning at the open channel was carried
on 5 March 2016.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0181a.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Edwin Au Fax No 2403 1162

Company Sang Hing Civil – Richwell Machinery JV

From Nicola Hon Date 23 March 2016

Our Ref TCS00694/13/300/F0183a No of Pages 6 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM1 on 4 and 9 March 2016 (Contract 5)

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the following Notification of Exceedance (NOE) ref.:

TCS00694/13/300/F0162 dated 7 March 2016 TCS00694/13/300/F0170 dated 9 March 2016 TCS00694/13/300/F0175 dated 11 March 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Kelvin Lee (ER, AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2674 7732 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		4 March 2016	9 March 2016	4 March 2016	9 March 2016
Location		WM1
Time		11:35	11:00	11:35	11:00
Parameter		Turbidity (NTU)		Suspended Solids (mg/L)
Action Level		51.3 AND 120% of upstream control station of the same day		54.5 AND 120% of upstream control station of the same day
Limit Level		67.6 AND 130% of upstream control station of the same day		64.9 AND 130% of upstream control station of the same day
Measured Levels	WM1-C	9.1	23.0	2.5	11.0
Measured Levels	WM1	146.0	82.7	185.5	51.0
Exceedance		Limit Level	Limit Level	Limit Level	NO exceedance
Investigation		1. According to the site information provided from the SRJV,
Results,		construction activities carried out on 4 and 9 March 2016 were
Recommendations		construction of u-channel and bituminous laying at Lin Ma Hang
& Mitigation		Road. (Figure 1) No wastewater was generated from the
Measures		abovementioned work and no construction activities were conducted at Boundary Control Point (BCP) which near Kong Yiu Kong. 2. According to the site record from the monitoring team during monitoring on 4 March 2016, turbid water was observed at WM1 whereas the water quality at WM1-C was visually clear. (Photo 1 to 3) On 9 March 2016, slightly turbid water was observed at both WM1-C and WM1. (Photo 4 to 6) 3. During site inspection by the RE, IEC, SRJV and ET on 1 and 8 March 2016, no adverse water quality impact was observed. (Photo 7 & 8) Moreover, there were no wastewater generation activities carried out and no discharge made into the river course. In our investigation, it is considered that the exceedances were unlikely due to the Contract. 4. According to the Event and Action, the monitoring frequency at WM1 has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 5 and 10 March 2016 in which turbidity and SS exceedances were triggered on 10 March 2016. SRJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

AUES

Prepared By : _{Nicola Hon}

_{Designation :}Environmental Consultant

Signature :

Date : 23 March 2016

AUES

Photo Record

Photo 1 During water sampling on 4 March 2016, turbid water was observed at WM1.	Photo 2 During water sampling on 4 March 2016, the water quality at WM1-C was visually clear
Photo 3 The water samples collected at WM1 on 4 March 2016 were slightly turbid.	Photo 4 During water sampling on 9 March 2016, slightly turbid water was observed at WM1.

AUES

Photo 5 During water sampling on 9 March 2016, the water quality at WM1-C was slightly turbid.	Photo 6 The water samples collected at both WM1-C and WM1 on 9 March 2016 were slightly turbid.
Photo 7 During site inspection on 1 March 2016, construction of u-channel was observed. No adverse water quality impact was noted.	Photo 8 During site inspection on 8 March 2016, construction of u-channel was observed. No adverse water quality impact was noted.

AUES

Figure 1 Location Map

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0183a.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 23 March 2016

Our Ref TCS00694/13/300/F0184b No of Pages 5 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM1 on 4 and 9 March 2016 (Contract 6)

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the following Notification of Exceedance (NOE) ref.:

TCS00694/13/300/F0161 dated 7 March 2016 TCS00694/13/300/F0171 dated 9 March 2016 TCS00694/13/300/F0174 dated 11 March 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		4 March 2016	9 March 2016	4 March 2016	9 March 2016
Location		WM1
Time		11:35	11:00	11:35	11:00
Parameter		Turbidity (NTU)		Suspended Solids (mg/L)
Action Level		51.3 AND 120% of upstream control station of the same day		54.5 AND 120% of upstream control station of the same day
Limit Level		67.6 AND 130% of upstream control station of the same day		64.9 AND 130% of upstream control station of the same day
Measured Levels	WM1-C	9.1	23.0	2.5	11.0
Measured Levels	WM1	146.0	82.7	185.5	51.0
Exceedance		Limit Level	Limit Level	Limit Level	NO exceedance
Investigation Results,		1. According to the site information provided from the CCKJV,
Recommendations &		construction activities carried out on 4 and 9 March 2016 at Boundary
Mitigation Measures		Control Point (BCP) which upstream of WM1 was bored piling. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 4 March 2016, turbid water was observed at WM1 whereas the water quality at WM1-C was visually clear. (Photo 1 to 3) On 9 March 2016, slightly turbid water was observed at both WM1-C and WM1. (Photo 4 to 6) Moreover, during the course of sampling on 4 and 9 March 2016, turbid water was observed at upstream of the works area of Contract 6. (Photo 7 & 8) 3. As advised by the Contractor, the wastewater generated from the bored pile works was recirculated to the AquaSed for treatment and discharge would be made when the effluent is overflow from the AquaSed. (Photo 9) Since discharge license was not yet granted for the Contract, self-monitoring for the effluent quality would be conducted by the Contractor if discharge is required to ensure the discharge effluent complied with the relevant requirements. 4. Since turbid water was observed at upstream of the site area of Contract 6, it is considered that the exceedances were unlikely due to the Contract. 5. According to the Event and Action, the monitoring frequency at WM1 has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 5 and 10 March 2016 in which turbidity and SS exceedances were triggered on 10 March 2016. CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By : Nicola Hon

Designation : Environmental Consultant

Signature :

Date :

23 March 2016

AUES

Photo Record

Photo 1 During water sampling on 4 March 2016, turbid water was observed at WM1.	Photo 2 During water sampling on 4 March 2016, the water quality at WM1-C was visually clear
Photo 3 The water samples collected at WM1 on 4 March 2016 were slightly turbid.	Photo 4 During water sampling on 9 March 2016, slightly turbid water was observed at WM1.
Photo 5 During water sampling on 9 March 2016, the water quality at WM1-C was slightly turbid.	Photo 6 The water samples collected at both WM1-C and WM1 on 9 March 2016 were slightly turbid.

AUES

Photo 7 During water sampling on 4 March 2016, turbid water was observed at upstream of the works area of Contract 6. (works area of Contract 6 is after the Bridge) Flow direction of turbid water	Photo 8 During water sampling on 9 March 2016, turbid water was observed at upstream of the works area of Contract 6. (works area of Contract 6 is after the Bridge) Flow direction of turbid water
Photo 9 The wastewater generated from the bored pile works was recirculated to the AquaSed for treatment and discharge would be made when the effluent is overflow from the AquaSed.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM1 and WM1-C

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0184b.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Jon Kitching Fax No 2743 1600 Company Leighton Contractors (Asia) Limited

From Nicola Hon Date 15 March 2016

Our Ref TCS00769/15/300/F0066 No of Pages 8 (Incl. cover sheet)

RE Architectural Services Department (ArchSD) Contract No: SS C505 Construction of Liantang/Heung Yuen Wai Boundary Control Point (BCP) – BCP Buildings and Associated Facilities

Investigation Report for Exceedance of Water Quality Monitoring at Location WM1 on 4 and 9 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref. of following:-

TCS00769/15/300/F0056 dated 7 March 2016 TCS00769/15/300/F0062 dated 9 March 2016 TCS00769/15/300/F0064 dated 11 March 2016

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant

Encl.
c.c.	Mr. David Chan (EPD) Mr. William WL Cheng (ASD) Mr. Justin Cheung (Ronald Lu) Mr. Antony Wong (IEC, SMEC) Mr. Simon Leung (ER, AECOM)	Fax: Fax:	2685 1155 By e-mail By e-mail By e-mail 2674 7732

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works

Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Contract		SS C505
Monitoring Location		WM1
Date		4 March 2016	9 March 2016	4 March 2016	9 March 2016
Time		11:35	11:00	11:35	11:00
Parameter		Turbidity (NTU)		Suspended Solids (mg/L)
Action Level		51.3 AND 120% of upstream control station of the same day		54.5 AND 120% of upstream control station of the same day
Limit Level		67.6 AND 130% of upstream control station of the same day		64.9 AND 130% of upstream control station of the same day
Measured levels	WM1-C	9.1	23.0	2.5	11.0
Measured levels	WM1	146.0	82.7	185.5	51.0
Exceedance		Limit Level	Limit Level	Limit Level	NO exceedance
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided by the Contractor, the major construction activities carried out on 4 and 9 March 2016 included excavation, formwork erection, soil compaction, driven pile and bored piling which are illustrated in Figure 1. It is noted that the majority active construction area were not closed to Kong Yiu River. (Figure 2) 2. According to the field data record by ET on 4 and 9 March 2016, cloudy water was observed at WM1 whereas the water quality at WM1-C was visually clear. (Photo 1 to 6) 3. In view of the construction activities on 4 and 9 March 2016 and confirmed by the Contractor, wastewater was generated during the bored piling work only and the wastewater was recirculated for the piling work used. If water discharge is required, they will follow the temporary site drainage plan in which wastewater would be diverted to the perimeter channel and then collected to the wastewater treatment plant for treatment before discharge. (Figure 3) It is noted that the discharge point connecting public drainage was located at the west of the site and the discharge water would not flow to WM1 and its upstream. (Figure 3) 4. During site inspection on 2 and 9 March 2016, it was observed that the perimeter channel and the wastewater treatment facilities were in proper function. (Photo 7 & 9) The effluent from the AquaSed on 2 March 2016 was visually clear whereas no discharge was made on 9 March 2016. (Photo 8 & 10) Moreover, no major water impact was observed during site inspection on 2 and 9 March 2016. 5. In view of the topography of the construction site, the formation level of the site is lower than the roads bounding the site (around 2m height difference), it is considered that the wastewater generated on-site is not likely flowing out of the site boundary. (Photo 11) As advised by the Contractor, around 90% of treated water is reused on-site (water spread for dust suppression) whereas the rest of the treatment wastewater would be discharge off site at the approval discharge point.

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Action-United Environmental Services & Consulting

AUES

	6. There were no exceedances triggered in the subsequent monitoring result after 5 and 7 March 2016 and 11 and 12 March 2016. According to the above investigation, it is considered that the exceedances were not likely related to the works under the Contract.
Action to be taken	The Contractor is reminded to fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By :

Nicola Hon

Designation : Environmental Consultant

Signature :

Date :

15 March 2016

AUES

Photo 1 Cloudy water was observed at WM1 on 4 March 2016.	Photo 2 Clear water was observed at WM1-C on 4 March 2016.
Photo 3 The water collected at WM1 on 4 March 2016 was slightly cloudy.	Photo 4 Cloudy water was observed at WM1 on 9 March 2016.
Photo 5 Clear water was observed at WM1-C on 9 March 2016.	Photo 6 The water collected at WM1 on 9 March 2016 was slightly cloudy.

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Photo 7 During site inspection on 2 March 2016, the perimeter channel was in proper function.	Photo 8 During site inspection on 2 March 2016, it was observed that the effluent from the AquaSed was visually clear. Clear effluent at the discharge point
Photo 9 During site inspection on 9 March 2016, the perimeter channel was in proper function.	Photo 10 During site inspection on 9 March 2016, there was no discharge observed from the wastewater treatment system. No discharge at the discharge point
Photo 11 Temporary drainage channel has been constructing at the periphery of the site and the formation level of the site is lower than the roads bounding the site

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		N
Figure 1	Locaiton Map of Construciton Activities on 4 and 9 March 2016

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Action-United Environmental Services & Consulting

AUES

WM1		WM1‐Control Works area under SS C505 Discharge Point
	Figure 2	Locaiton Map of Water Monitoring Location

Z:\Jobs\2015\TCS00769(SS C505)C7\300\NOE\IR\F0066.doc

Action-United Environmental Services & Consulting

AUES

Z:\Jobs\2015\TCS00769(SS C505)C7\300\NOE\IR\F0066.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 17 March 2016

Our Ref TCS00694/13/300/F0190 No of Pages 6 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM2B on 8, 9 and 10 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref. of following:

TCS00694/13/300/F0168 dated 9 March 2016 TCS00694/13/300/F0169 dated 10 March 2016 TCS00694/13/300/F0176 dated 11 March 2016. TCS00694/13/300/F0185 dated 16 March 2016. TCS00694/13/300/F0186 dated 16 March 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		8 March 2016	9 March 2016	10 March 2016	8 March 2016		9 March 2016	10 March 2016
Location		WM2B
Time		11:10	11:52	14:19	11:10	11:52		14:19
Parameter		Turbidity (NTU)			Suspended Solids (mg/L)
Action Level		11.4 AND 120% of upstream control station of the same day			11.8 AND 120% of upstreamcontrol station of the same day
Limit Level		12.3 AND 130% of upstream control station of the same day			12.4 AND 130% of upstreamcontrol station of the same day
Measured Levels	WM2B-C	4.0	5.0	5.2	4.0	5.5		6.0
Measured Levels	WM2B	221.5	14.9	27.3	138.0	12.0		16.0
Exceedance		Limit Level	Limit Level	Limit Level	Limit Level	Action Level		Limit Level
Investigation Results,Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 8 to 10 March 2016 at North Portal (upstream of WM2B) were bored piling and slope work. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 8 March 2016, very shallow water was measured at WM2B and the water depth was around 0.02m. (Photo 1) The water flowing in the channel and the samples collected at WM2B was slightly turbid. (Photo 2) On 9 and 10 March 2016, very shallow water was measured at WM2B and the water depth was around 0.02m and the water flowing in the open channel was visually clear. (Photo 3 to 5) Since the water sampling was carried out at the bridge over the drainage channel at shallow water, the sampled water could not avoid inclusion of the loose sediment and debris. 3. As advised by the CCKJV, desilting of the open channel adjacent to the site was carried out during 8 to 10 March 2016 to remove the silt cumulated at the channel bed. (Photo 6) During the process of desilting, the turbid water inside in channel was blocked by the bar screen and sand bag barriers to prevent it flowing further downstream. Then, the turbid water in the open channel was pumped to the AquaSed for treatment and recirculated to the desilting works. The performance AquaSed was regularly checked by CCKJV to ensure it functioned properly. (Photo 7) 4. During site inspection on 10 March 2016, it was observed that desilting of open channel still carrying out. (Photo 8 & 9) Although stacks of sand bag barrier were provided in the channel to block the turbid water, it only retarded the flow rate and some of the turbid water was flowing out of the site and detected at WM2B. In our investigation, it is considered that the exceedance was due to the channel desilting. To enhance the mitigation measures, the Contractor was advised to provide more power pumps to facilitate the desilting work and minimize the amount of turbid water flowing out

AUES

of the site. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 11 March 2016 and turbidity and SS exceedances were triggered. CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By : _{Nicola Hon}

Designation :	Environmental Consultant
Signature :
Date :	17 March 2016

AUES

Photo Record

Photo 1 During water sampling on 8 March 2016, shallow water was observed at WM2B and the water quality at WM2B was slightly turbid.	Photo 2 The water samples collected at WM2B on 8 March 2016 was slightly turbid.
Photo 3 During water sampling on 9 March 2016, shallow water was observed at WM2B and the water quality at WM2B was visually clear.	Photo 4 The water samples collected at WM2B on 9 March 2016 was visually clear.
Photo 5 During water sampling on 10 March 2016, shallow water was observed at WM2B and the water quality at WM2B was visually clear.	Photo 6 Desilting of open channel was carried on 8 March 2016. The turbid water was blocked by the bar screen to prevent it flowing further downstream.

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Photo 7 CCKJV was regularly checked the performance AquaSed to ensure it functioned properly. (8 March 2016)	Photo 8 During site inspection on 10 March 2016, it was observed that desilting of open channel was carried out. Sand bag barrier
Photo 9 During site inspection on 10 March 2016, it was observed desilting work at upstream portion was completed

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0190.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 24 March 2016

Our Ref TCS00694/13/300/F0192 No of Pages 9 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Locations WM2A and WM2B on 11 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref.: TCS00694/13/300/F0179 dated 11 March 2016 and TCS00694/13/300/F0187 dated 16 March 2016. Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		11 March 2016
Location		WM2B
Time		11:04
Parameter		Turbidity (NTU)	Suspended Solids (SS)
Action Level		11.4 AND 120% of upstream control station of the same day	11.8 AND 120% of upstream control station of the same day
Limit Level		12.3 AND 130% of upstream control station of the same day	12.4 AND 130% of upstream control station of the same day
Measured Levels	WM2B-C	5.1	2.0
Measured Levels	WM2B	87.6	70.0
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 11 March 2016 at North Portal (upstream of WM2B) were bored piling and slope work. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 11 March 2016, very shallow water was measured at WM2B and the water depth was around 0.02m and the samples collected at WM2B was slightly turbid. (Photo 1 & 2) 3. As advised by the Contractor, desilting of the open channel adjacent to the site was carried out on 10 March 2016. On 11 March 2016, the remaining turbid water caused by to the desilting work in the open channel was blocked by the bar screen to prevent it flow to further downstream. The turbid water was then pumped to the AquaSed for treatment and recirculated to the bored piling work. However, the water recirculation pump was detached from the water pipe accidentally and causing overflow of turbid water through the bar screen to downstream. (Photo 3 and 4) Although stack of sand bag barrier was provided after the screen bar, some turbid water was flowing to further downstream and detected at WM2B. 4. The Contractor immediately fixed the detached recirculation pump and water pipe and the function of the recirculation pump was back to normal in the afternoon. It is concluded that the exceedances were a single incident. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 12 March 2016 and no exceedance was triggered. Nevertheless, CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By : Nicola Hon Designation : Environmental Consultant Signature :

Date :

24 March 2016

AUES

Photo Record

Photo 1 During water sampling on 11 March 2016, shallow water was observed at WM2B and the water quality at WM2B was slightly turbid.	Photo 2 The water samples collected at WM2Bon 11 March 2016 was slightly turbid.
Photo 3 On 11 March 2016, the water recirculation pump was detached from the water pipe accidentally and causing overflow of turbid water through the bar screen to downstream.	Photo 4 On 11 March 2016, the water recirculation pump was detached from the water pipe accidentally and causing overflow of turbid water through the bar screen to downstream.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

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Action-United Environmental Services & Consulting

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		11 March 2016
Location		WM2A
Time		10:30
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		11.4 AND 120% of upstreamcontrol station of the same day	11.6 AND 120% of upstreamcontrol station of the same day
Limit Level		12.3 AND 130% of upstreamcontrol station of the same day	17.3 AND 130% of upstreamcontrol station of the same day
Measured Levels	WM2A-C	16.1	7.0
Measured Levels	WM2A	198.5	164.5
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 11 March 2016 at Bridge D (upstream of WM2A) were mainly piling works. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 11 March 2016, turbid water was observed at WM2A (Photo 1 & 2). 3. As water mitigation measures, wastewater treatment facilities including one AquaSed and three series of sedimentation tank have been installed for piling work. (Photo 3 and 4) As advised by the Contractor, the wastewater generated from piling was recirculated and discharge could be made when water overflow from the AquaSed. Since discharge license was not yet granted for the Contract, self-monitoring for the effluent quality would be conducted by the Contractor if discharge is required to ensure the discharge effluent complied with the relevant requirements. 4. According to the photo record from the monitoring team on 11 March 2016, the condition of the water quality besides of Ping Yuen River of Bridge D was normal and no turbid water was observed. (Photo 5) Moreover, concrete block and sand bag act as a bund was provided at the area of the piling works besides of Ping Yuen River of Bridge D. (Photo 6) CCKJV advised that the construction of concrete bund will be continuously constructed along the piling area. 5. Since there were no trails of turbid water discharge from the construction site, it is considered that exceedances were unlikely due to the Contract. 6. According to the Event and Action, the monitoring frequency at WM2A has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. There were no exceedance triggered at WM2A for monitoring on 12 and 14 March 2016. Nevertheless, the Contractor should continue to fully

AUES

Prepared By : Nicola Hon Designation : Environmen tal Consultant Signature :

Date :

24 March 2016

AUES

Photo Record

Photo 1 During water sampling on 11 March 2016, turbid water was observed at WM2A.	Photo 2 The water samples collected at WM2A on 11 March 2016 was turbid.
Photo 3 Wastewater treatment facilities was installed for piling work at Bridge D.	Photo 4 Wastewater treatment facilities was installed for piling work at Bridge D. Moreover, concrete block and sand bag act as a bund was provided at the area of the piling works besides of Ping Yuen River of Bridge D. Concrete block as bund

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	Continuously concrete
Photo 5	Photo 6 block as bund
According to the photo record from the	According to the photo record from the monitoring
monitoring team on 11 March 2016, the condition	team on 11 March 2016, the condition of the water
of the water quality besides of Ping Yuen River	quality besides of Ping Yuen River of Bridge D was
of Bridge D was normal and no turbid water was	normal and no turbid water was observed.
observed.	Moreover, concrete block and sand bag act as a bund
	was provided at the area of the piling works besides
	of Ping Yuen River of Bridge D.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2A and WM2A-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0192.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Edwin Au Fax No 2403 1162

Company Sang Hing Civil – Richwell Machinery JV

From Nicola Hon Date 24 March 2016

Our Ref TCS00694/13/300/F0197 No of Pages 4 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM1 on 10 March 2016 (Contract 5)

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the following Notification of Exceedance (NOE) ref.:

TCS00694/13/300/F0162 dated 7 March 2016 TCS00694/13/300/F0170 dated 9 March 2016 TCS00694/13/300/F0175 dated 11 March 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Kelvin Lee (ER, AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2674 7732 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		10 March 2016
Location		WM1
Time		13:03
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		51.3 AND 120% of upstreamcontrol station of the same day	54.5 AND 120% of upstream control station of the same day
Limit Level		67.6 AND 130% of upstreamcontrol station of the same day	64.9 AND 130% of upstream control station of the same day
Measured Levels	WM1-C	47.2	35.0
Measured Levels	WM1	352.0	196.0
Exceedance		Limit Level	Limit Level
Investigation		1. According to the site information provided from the SRJV,
Results,		construction activities carried out on 10 March 2016 were
Recommendations		construction of u-channel and bituminous laying at Lin Ma Hang
& Mitigation		Road. (Figure 1) No wastewater was generated from the
Measures		abovementioned work and no construction activities were conducted at Boundary Control Point (BCP) which near Kong Yiu Kong. 2. According to the site record from the monitoring team during monitoring on 10 March 2016, turbid water was observed at WM1 abd the water quality at WM1-C was slightly turbid. (Photo 1 & 2) 3. During site inspection by the RE, IEC, SRJV and ET on 8 and 15 March 2016, no adverse water quality impact was observed. (Photo 7 & 8) Moreover, there were no wastewater generation activities carried out and no discharge made into the river course. In our investigation, it is considered that the exceedances were unlikely due to the Contract. 4. According to the Event and Action, the monitoring frequency at WM1 has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 11 and 12 March 2016 and no exceedance was recorded. However, SRJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By : Nicola Hon

Designation : Environmental Consultant

Signature :

Date :

24 March 2016

AUES

Photo Record

Photo 1 During water sampling on 10 March 2016, turbid water was observed at WM1.	Photo 2 During water sampling on 10 March 2016, the water quality at WM1-C was slightly turbid.
Photo 3 During site inspection on 8 March 2016, construction of u-channel was observed. No adverse water quality impact was noted.	Photo 4 During site inspection on 15 March 2016, construction of u-channel was observed. No adverse water quality impact was noted.

AUES

Figure 1 Location Map

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0197.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 24 March 2016

Our Ref TCS00694/13/300/F0198 No of Pages 4 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM1 on 10 March 2016 (Contract 6)

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the following Notification of Exceedance (NOE) ref.:

TCS00694/13/300/F0161 dated 7 March 2016 TCS00694/13/300/F0171 dated 9 March 2016 TCS00694/13/300/F0174 dated 11 March 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		10 March 2016
Location		WM1
Time		13:03
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		51.3 AND 120% of upstream control station of the same day	54.5 AND 120% of upstream control station of the same day
Limit Level		67.6 AND 130% of upstream control station of the same day	64.9 AND 130% of upstream control station of the same day
Measured Levels	WM1-C	47.2	35.0
Measured Levels	WM1	352.0	196.0
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 10 March 2016 at Boundary Control Point (BCP) which upstream of WM1 was bored piling. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 10 March 2016, turbid water was observed at WM1 whereas the water quality at WM1-C was slightly turbid clear. (Photo 1 & 2) Moreover, during the course of sampling on 10 March 2016, turbid water was observed at upstream of the works area of Contract 6. (Photo 3) 3. As advised by the Contractor, the wastewater generated from the bored pile works was recirculated to the AquaSed for treatment and discharge would be made when the effluent is overflow from the AquaSed. Since discharge license was not yet granted for the Contract, self-monitoring for the effluent quality would be conducted by the Contractor if discharge is required to ensure the discharge effluent complied with the relevant requirements. 4. During site inspection by the RE, IEC, Contractor and ET on 10 March 2016, the effluent of the AquaSed was inspected and the effluent quality is visually clear. (Photo 4) Moreover, turbid water was observed at upstream of the works area of Contract 6 as well. In our investigation, it is considered that the exceedances were unlikely due to the Contract. 5. According to the Event and Action, the monitoring frequency at WM1 has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 11 and 12 March 2016 and no exceedance was recorded. However, CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By : Nicola Hon Designation : Environmental Consultant Signature :

Date :

24 March 2016

AUES

Photo Record

Photo 1 During water sampling on 10 March 2016, turbid water was observed at WM1.	Photo 2 During water sampling on 10 March 2016, the water quality at WM1-C was slightly turbid.
Flow direction of turbid water	The effluent quality is visually clear.
Photo 3 During water sampling on 10 March 2016, turbid water was observed at upstream of the works area of Contract 6. (works area of Contract 6 is after the Bridge)	Photo 4 During site inspection by the RE, IEC, Contractor and ET on 10 March 2016, the effluent of the AquaSed was inspected and the effluent quality is visually clear.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM1 and WM1-C

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0198.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Jon Kitching Fax No 2743 1600 Company Leighton Contractors (Asia) Limited

From Nicola Hon Date 29 March 2016

Our Ref TCS00769/15/300/F0073 No of Pages 7 (Incl. cover sheet)

RE Architectural Services Department (ArchSD) Contract No: SS C505 Construction of Liantang/Heung Yuen Wai Boundary Control Point (BCP) – BCP Buildings and Associated Facilities

Investigation Report for Exceedance of Water Quality Monitoring at Location WM1 on10 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref. of following:-

TCS00769/15/300/F0065 dated 11 March 2016 TCS00769/15/300/F0072 dated 29 March 2016

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant

Encl.
c.c.	Mr. David Chan (EPD) Mr. William WL Cheng (ASD) Mr. Justin Cheung (Ronald Lu) Mr. Antony Wong (IEC, SMEC) Mr. Simon Leung (ER, AECOM)	Fax: Fax:	2685 1155 By e-mail By e-mail By e-mail 2674 7732

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works

Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Contract		SS C505
Monitoring Location		WM1
Date		10 March 2016
Time		13:03
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		51.3 AND 120% of upstream control station of the same day	54.5 AND 120% of upstream control station of the same day
Limit Level		67.6 AND 130% of upstream control station of the same day	64.9 AND 130% of upstream control station of the same day
Measured levels	WM1-C	47.2	35.0
Measured levels	WM1	325.0	196.0
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided by the Contractor, the major construction activities carried out on 10 March 2016 included excavation, formwork erection, soil compaction, driven pile and bored piling and site investigation which are illustrated in Figure 1. It is noted that the majority active construction area were not closed to Kong Yiu River. (Figure 2) 2. According to the field data record by ET on 10 March 2016, turbid water was observed at WM1 whereas the water quality at WM1-C was slightly turbid clear. (Photo 1 & 2) 3. In view of the construction activities on 10 March 2016 and confirmed by the Contractor, wastewater was generated during the bored piling work only and the wastewater was recirculated for the piling work used. If water discharge is required, they will follow the temporary site drainage plan in which wastewater would be diverted to the perimeter channel and then collected to the wastewater treatment plant for treatment before discharge. (Figure 3) It is noted that the discharge point connecting public drainage was located at the west of the site and the discharge water would not flow to WM1 and its upstream. (Figure 3) 4. During site inspection on 9 March 2016, it was observed that the perimeter channel and the wastewater treatment facilities were in proper function and there were no discharge was made on 9 March 2016. (Photo 3 & 4) Moreover, no major water impact was observed during site inspection on 9 March 2016. 5. In view of the topography of the construction site, the formation level of the site is lower than the roads bounding the site (around 2m height difference), it is considered that the wastewater generated on-site is not likely flowing out of the site boundary. (Photo 5) As advised by the Contractor, around 90% of treated water is reused on-site (water spread for dust suppression) whereas the rest of the treatment wastewater would be discharge off site at the approval discharge point. 6. According to the above investigation, it is considered that the exceedances were not likely related to the works under the Contract.

Z:\Jobs\2015\TCS00769(SS C505)C7\300\NOE\IR\F0073.doc

Action-United Environmental Services & Consulting

AUES

7. According to the Event and Action, the monitoring frequency at WM1 has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 11 and 12 March 2016 and no exceedance was recorded. However, the Contractor should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Action to be taken

The Contractor is reminded to fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By :

Nicola Hon

Designation : Environmental Consultant

Signature :

Date :

29 March 2016

AUES

Photo 1 During water sampling on 10 March 2016, turbid water was observed at WM1.	Photo 2 During water sampling on 10 March 2016, the water quality at WM1-C was slightly turbid.
Photo 3 During site inspection on 9 March 2016, the perimeter channel was in proper function.	Photo 4 During site inspection on 9 March 2016, there was no discharge observed from the wastewater treatment system. No discharge at the discharge point
Photo 5 Temporary drainage channel has been constructing at the periphery of the site and the formation level of the site is lower than the roads bounding the site

AUES

		N
Figure 1	Locaiton Map of Construciton Activities on 10 March 2016

Z:\Jobs\2015\TCS00769(SS C505)C7\300\NOE\IR\F0073.doc

Action-United Environmental Services & Consulting

AUES

WM1	WM1‐Control Works area under SS C505 Discharge Point	N
	Figure 2 Locaiton Map of Water Monitoring Location

Z:\Jobs\2015\TCS00769(SS C505)C7\300\NOE\IR\F0073.doc

Action-United Environmental Services & Consulting

AUES

Z:\Jobs\2015\TCS00769(SS C505)C7\300\NOE\IR\F0073.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 31 March 2016

Our Ref TCS00694/13/300/F0207 No of Pages 6 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM2B on 14, 15 and 16 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref. of following:

TCS00694/13/300/F0182 dated 15 March 2016 TCS00694/13/300/F0191 dated 17 March 2016 TCS00694/13/300/F0203 dated 31 March 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		14 March 2016	15 March 2016	16 March 2016	14 March 2016	15 March 2016	16 March 2016
Location		WM2B
Time		11:45	11:25	10:20	11:45	11:25	10:20
Parameter		Turbidity (NTU)			Suspended Solids (mg/L)
Action Level		11.4 AND 120% of upstreamcontrol station of the same day			11.8 AND 120% of upstream control station of the same day
Limit Level		12.3 AND 130% of upstreamcontrol station of the same day			12.4 AND 130% of upstream control station of the same day
Measured Levels	WM2B-C	15.7	5.6	5.9	<2	<2	3.0
Measured Levels	WM2B	45.1	19.0	108.0	69.0	10.0	48.5
Exceedance		Limit Level	Limit Level	Limit Level	Limit Level	NO exceedance	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 14 to 16 March 2016 at North Portal (upstream of WM2B) were bored piling and slope work. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team on 14 and 15 March 2016, very shallow water was measured at WM2B and the water depth was around 0.01-0.02m. (Photo 1 & 3) It was observed that the water flowing in the channel and the water samples collected at WM2B was visually clear. (Photo 2 & 4) Since the water sampling was carried out at the bridge over the drainage channel at shallow water, the water sample could not avoid inclusion of the loose sediment and debris. On 16 March 2016, the water sampling was conducted after shower and it was observed that the water flowing in the open channel was slightly turbid due to stir up of sediment at the river bed during rain. (Photo 5 & 6) 3. As advised by the Contractor, self-monitoring for the treated water in the wastewater treatment facilities was conducted and effluent was visually clear. (Photo 7) As water mitigation measures, sump pits with temporary channel were constructed under the slopes to divert the site runoff for temporary storage and primarily desilting before divert to the AquaSed. Moreover, the slopes adjacent to channel were covered with tarpaulin sheet or hard paved to minimise muddy runoff during rain. 4. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 17 and 18 March 2016 and no exceedances were triggered. Nevertheless, CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

AUES

Prepared By : _{Nicola Hon}

_{Designation :}Environmental Consultant

Signature :

Date : 31 March 2016

AUES

Photo Record

Photo 1 During water sampling on 14 March 2016, shallow water was observed at WM2B and the water quality at WM2B was visually clear.	Photo 2 The water samples collected at WM2B on 14 March 2016 was visually clear.
Photo 3 During water sampling on 15 March 2016, shallow water was observed at WM2B and the water quality at WM2B was visually clear.	Photo 4 The water samples collected at WM2B on 15 March 2016 was visually clear.
Photo 5 During water sampling on 16 March 2016, shallow water was observed at WM2B and the water quality at WM2B was slightly turbid.	Photo 6 The water samples collected at WM2B on 16 March 2016 was slightly turbid.

AUES

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0207.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Daniel Ho Fax No 2638 7077 Company Chun Wo Construction Ltd

From Nicola Hon Date 1 April 2016

Our Ref TCS00670/13/300/F0211 No of Pages 4 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM4 on 21 March 2016 (Contract 3)

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Mr. Ho,

Further to the Notification of Exceedance (NOE) ref.: TCS00670/13/300/F0195 dated 22 March 2016 and TCS00670/13/300/F0205 dated 31 March 2016. Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Alan Lee (ER of C3, AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2171 3498 By e-mail

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works

Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		21 March 2016
Location		WM4
Time		13:00
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		35.2 AND 120% of upstream control station of the same day	39.4 AND 120% of upstream control station of the same day
Limit Level		38.4 AND 130% of upstream control station of the same day	45.5 AND 130% of upstream control station of the same day
Measured Level	WM4-CA	25.7	20.5
	WM4-CB	49.1	35.5
	WM4	89.1	70.5
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site diary provided by the Contractor, construction works carried out on 21 March 2016 included pre-drilling and no wastewater was generated. Surface runoff of the site was all diverted to the wastewater treatment facilities for de-silting prior to discharge. 2. According to the site record from the monitoring team on 21 March 2016, turbid water was observed at both impact and control station WM4, WM4-CA and WM4-CB under the influence of rain (Photo 1 to 4 and Figure 1) 3. As advised by the Contractor, muddy water flowed from other upstream location which was not under monitored by the Contract was observed on 21 March 2016. (Photo 5 &6) It is considered that the exceedances were due to the stir up of sediment during rain and external muddy water from upstream and not related to the works under the Contract. 4. According to the Event and Action, the monitoring frequency at exceed station shall be increased to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. In view of the subsequent monitoring result, no exceedances were triggered at WM4 on 22 and 23 March 2016. However, the Contractor should continue to implement the environmental mitigation measures recommended in implementation schedule in the EM&A Manual.

Prepared By : Nicola Hon Designation : Environmental Consultant

Signature :

^{Date :}1 April 2016

AUES

Photo Record

Photo 1 Turbid water was observed at WM4 on 21 March 2016.	Photo 2 Turbid water was observed at WM4-CA on 21 March 2016.
Photo 3 Turbid water was observed at WM4-CB on 21 March 2016.	Photo 4 The water samples collected at WM4, WM4-CA and WM4-C were turbid.
Photo 5 Turbid water flowed from upstream was observed on 21 March 2016.	Photo 6 Turbid water flowed from upstream affecting the water quality throughout the river course as observed on 21 March 2016.

WM4WM4-CBNWM4-CAlocation of muddy water observed Photo 5Photo 6

Figure 1. Location of Water Quality Monitoring LocationCV201209-T-CWC-SK-001g_AD_edit.dgn 9/12/2013 15:16:35

Fax Cover Sheet

AUES

To Mr. Roger Lee Fax No 2717 3299

Company Dragages Hong Kong Limited

From Nicola Hon Date 1 April 2016

Our Ref TCS00697/13/300/F0212 No of Pages 4 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM4 on 21 March 2016 (Contract 2)

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Mr. Lee,

Further to the Notification of Exceedance (NOE) ref.: TCS00670/13/300/F0196 dated 22 March 2016 and TCS00670/13/300/F0206 dated 31 March 2016. Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Gregory Lo (ER, AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2171 3498 By e-mail

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		21 March 2016
Location		WM4
Time		13:00
Parameter		Turbidity (NTU)	Suspended Solids (mg/L)
Action Level		35.2 AND 120% of upstream control station of the same day	39.4 AND 120% of upstream control station of the same day
Limit Level		38.4 AND 130% of upstream control station of the same day	45.5 AND 130% of upstream control station of the same day
Measured Level	WM4-CA	25.7	20.5
	WM4-CB	49.1	35.5
	WM4	89.1	70.5
Exceedance		Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided by the Contractor of Contract 2 (DHK), construction activities carried out at South Portal on 21 March 2016 included tunnel excavation and ventilation building superstructure. The construction activities were carried out away from the river course and no discharge was made on 21 March 2016. 2. According to the site record from the monitoring team on 21 March 2016, turbid water was observed at both impact and control station WM4, WM4-CA and WM4-CB under the influence of rain (Photo 1 to 4 and Figure 1) 3. As advised by the Contractor of C3, muddy water flowed from other upstream location which was not under monitored by the Contract was observed on 21 March 2016. (Photo 5 &6) It is considered that the exceedances were due to the stir up of sediment during rain and external muddy water from upstream and not related to the works under the Contract. 4. According to the Event and Action, the monitoring frequency at exceed station shall be increased to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. In view of the subsequent monitoring result, no exceedances were triggered at WM4 on 22 and 23 March 2016. However, the Contractor should continue to implement the environmental mitigation measures recommended in implementation schedule in the EM&A Manual.

Prepared By : Nicola Hon Designation : Environmental Consultant

Signature :

^{Date :}1 April 2016

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0212.doc

AUES

Photo Record

Photo 1 Turbid water was observed at WM4 on 21 March 2016.	Photo 2 Turbid water was observed at WM4-CA on 21 March 2016.
Photo 3 Turbid water was observed at WM4-CB on 21 March 2016.	Photo 4 The water samples collected at WM4, WM4-CA and WM4-C were turbid.
Photo 5 Turbid water flowed from upstream was observed on 21 March 2016.	Photo 6 Turbid water flowed from upstream affecting the water quality throughout the river course as observed on 21 March 2016.

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 7 April 2016

Our Ref TCS00694/13/300/F0220 No of Pages 6 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM2B on 21 and 22 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref. of following:

TCS00694/13/300/F0194 dated 22 March 2016 TCS00694/13/300/F0204 dated 31 March 2016

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		21 March 2016	22 March 2016	21 March 2016	22 March 2016
Location		WM2B
Time		11:35	10:11	11:35	10:11
Parameter		Turbidity (NTU)		Suspended Solids (mg/L)
Action Level		11.4 AND 120% of upstream control station of the same day		11.8 AND 120% of upstream control station of the same day
Limit Level		12.3 AND 130% of upstream control station of the same day		12.4 AND 130% of upstream control station of the same day
Measured Levels	WM2B-C	6.7	6.3	5.0	3.0
Measured Levels	WM2B	284.0	179.0	50.0	232.0
Exceedance		Limit Level	Limit Level	Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 21 and 22 March 2016 at North Portal (upstream of WM2B) was pile cap installation work only. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team on 21 and 22 March 2016, very shallow water was measured at WM2B and the water depth was around 0.02m. (Photo 1&3) The water sampling was conducted during rain and it was observed that the water flowing in the open channel was slightly turbid due to stir up of sediment and cumulated silt at the river bed during rain. (Photo 2 & 4) 3. As advised by the Contractor, self-monitoring for the treated water in the wastewater treatment facilities was conducted and effluent was visually clear. (Photo 5 & 6) As water mitigation measures, sump pit was constructed near the pile cap area to collect the possible runoff and wastewater generated from the works before divert to the AquaSed for proper treatment. Moreover, hydro-seeding and shotcreting were applied on the stabilized slopes which adjacent to existing open channel to minimise muddy runoff during rain. (Photo 7 & 8) 4. Apart from the disturbance of cumulated silt at the river bed during rain, it was observed trails of muddy runoff from the public road surface into the existing channel due to rain. (Photo 1 & 3 & Figure 1) It is considered that the exceedances were likely related to cumulated silt at the river bed and muddy runoff from the public road surface. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 23 and 24 March 2016 and exceedances of turbidity and SS were triggered. CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

AUES

Prepared By : _{Nicola Hon}

_{Designation :}Environmental Consultant

Signature :

Date : 7 April 2016

AUES

Photo Record

Trails of muddy runoff from public road
Photo 1	Photo 2
During water sampling on 21 March 2016,	The water samples collected at WM2B on 21
shallow water was observed at WM2B and the water quality at WM2B was turbid.	March 2016 was turbid.
Trails of muddy runoff from public road
Photo 3 During water sampling on 22 March 2016, shallow water was observed at WM2B and the water quality at WM2B was slightly turbid.	Photo 4 The water samples collected at WM2B on 21 March 2016 was slightly turbid.
Photo 5 The effluent of the AquaSed was visually clear.	Photo 6 The effluent of the AquaSed was visually clear.

AUES

Photo 7

Photo 8

Sump pit was constructed near the pile cap area to

Hydro-seeding and shotcreting were applied on

collect the possible runoff and wastewater

the stabilized slopes which adjacent to existing

generated from the works before divert to the

open channel to minimise muddy runoff during

AquaSed for proper treatment.

rain.

AUES

Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0220.doc

Action-United Environmental Services & Consulting

WM4WM4-CBNApprox. works area of South Portal of C2WM4-CAlocation of muddy water observed Photo 5Photo 6

Figure 1. Location of Water Quality Monitoring LocationCV201209-T-CWC-SK-001g_AD_edit.dgn 9/12/2013 15:16:35

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 7 April 2016

Our Ref TCS00694/13/300/F0221 No of Pages 6 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM2B on 23 and 24 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref. of following:

TCS00694/13/300/F0199 dated 24 March 2016 TCS00694/13/300/F0219 dated 6 April 2016

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		23 March 2016	24 March 2016	23 March 2016	24 March 2016
Location		WM2B
Time		13:05	11:24	13:05	11:24
Parameter		Turbidity (NTU)		Suspended Solids (mg/L)
Action Level		11.4 AND 120% of upstream control station of the same day		11.8 AND 120% of upstream control station of the same day
Limit Level		12.3 AND 130% of upstream control station of the same day		12.4 AND 130% of upstream control station of the same day
Measured Levels	WM2B-C	49.8	20.8	35.5	9.0
Measured Levels	WM2B	452.0	301.5	124.0	160.0
Exceedance		Limit Level	Limit Level	Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the CCKJV, construction activities carried out on 23 and 24 March 2016 at North Portal (upstream of WM2B) was pile cap installation work only. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team on 23 and 24 March 2016, very shallow water was measured at WM2B and the water depth was around 0.02m. (Photo 1&3) The water sampling was conducted during rain and it was observed that the water flowing in the open channel was slightly turbid due to stir up of sediment and cumulated silt at the river bed during rain. (Photo 2 & 4) 3. As advised by the Contractor, self-monitoring for the treated water in the wastewater treatment facilities was conducted and effluent was visually clear. As water mitigation measures, sump pit was constructed near the pile cap area to collect the possible runoff and wastewater generated from the works before divert to the AquaSed for proper treatment. Moreover, hydro-seeding and shotcreting were applied on the stabilized slopes which adjacent to existing open channel to minimise muddy runoff during rain. (Photo 6 & 7) 4. Apart from the disturbance of cumulated silt at the river bed during rain, it was observed trails of muddy runoff from the public road surface into the existing channel due to rain. (Photo 1 & 3 & Figure 1) It is considered that the exceedances were likely related to cumulated silt at the river bed and muddy runoff from the public road surface. 5. According to the Event and Action, the monitoring frequency at WM2B has been increase to daily due to the limit level exceedance recorded until no exceedances were triggered in consecutive days. Additional monitoring was carried out on 29 and 30 March 2016 and no exceedances were triggered. Nevertheless, CCKJV should continue fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

AUES

Prepared By : _{Nicola Hon}

_{Designation :}Environmental Consultant

Signature :

Date : 7 April 2016

AUES

Photo Record

Photo 1 During water sampling on 23 March 2016, shallow water was observed at WM2B and the water quality at WM2B was turbid. Trails of muddy runoff from public road	Photo 2 The water samples collected at WM2B on 23 March 2016 was turbid.
Photo 3 During water sampling on 24 March 2016, shallow water was observed at WM2B and the water quality at WM2B was slightly turbid. Trails of muddy runoff from public road	Photo 4 The water samples collected at WM2B on 24 March 2016 was slightly turbid.

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Photo 5

Photo 6

Sump pit was constructed near the pile cap area to

Hydro-seeding and shotcreting were applied on

collect the possible runoff and wastewater

the stabilized slopes which adjacent to existing

generated from the works before divert to the

open channel to minimise muddy runoff during

AquaSed for proper treatment.

rain.

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Figure 1 Location Map for Water Quality Monitoring Locations WM2B and WM2B-Control

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0221.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Vincent Chan Fax No By e-mail

Company CRBC-CEC-Kaden JV

From Nicola Hon Date 13 April 2016

Our Ref TCS00694/13/300/F0229a No of Pages 6 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM3 on 29, 30 and 31 March 2016

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Sir,

Further to the Notification of Exceedance (NOE) ref.:

TCS00694/13/300/F0201 dated 29 March 2016 TCS00694/13/300/F0208 dated 31 March 2016. TCS00694/13/300/F0224 dated 7 April 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Simon Leung (ER of C6/ AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2251 0698 By email

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		29 Mar 16	30 Mar 16	31 Mar 16	29 Mar 16	30 Mar 16	31 Mar 16
Location		WM3
Time		12:41	12:35	10:43	12:41	12:35	10:43
Parameter		Turbidity (NTU)			Suspended Solids (mg/L)
Action Level		13.4 AND 120% of upstream control station of the same day			12.6 AND 120% of upstream control station of the same day
Limit Level		14.0 AND 130% of upstream control station of the same day			12.9 AND 130% of upstream control station of the same day
Measured Level	WM3-C	4.9	5.2	2.6	7.0	6.5	14.0
Measured Level	WM3	72.1	121.5	35.3	109.0	54.5	16.0
Exceedance		Limit Level	Limit Level	Limit Level	Limit Level	Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the Contractor of C6 (CCKJV), the main construction activities carried out on 29 to 31 March 2016 at upstream of WM3 was bored pile works. The monitoring locations and works area are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 29 to 31 March 2016, the water quality at WM3 was slightly turbid. (Photo 1 to 3) 3. As water mitigation measures, CCKJV has been set up a temporary drainage channel to divert wastewater from bored pile work and wheel washing bay to the wastewater treatment facilities and they area under normal operation. The effluent from wastewater treatment facilities was mainly recirculated in the wheel washing basin and bored pile work and the excess water would be discharged to the nullah which connected to Ng Tung River. CCKJV would check the performance of discharge water every day to ensure it complied with the relevant standard. No adverse water impact was recorded during site inspection in late March 2016. 4. Upon the exceedance recorded on 29 March 2016, the ET has been liaison with CCKJV to investigate the possible source of turbid water. CCKJV and ET has inspected the treated effluent discharged into nullah which connected to Ng Tung River on 29, 30 March 2016, it was observed that the effluent quality was visually clear. Though some silt cumulated at nullah bed was observed on 31 March 2016, the water flowing in the nullah was visually clear. (Photo 4 to 6) 5. As advised by CCKJV, discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C6 and WM3. (Photo 7 to 9) There were no exceedances triggered in the additional monitoring result on 1 April 2016 when turbid discharge from the unknown outfall was not observed. It is considered that the turbid water detected at WM3 was related to the turbid discharge from the unknown outfall and unlikely due to the works under Contract 6.
Action to be taken		The Contractor is reminded to fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

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Prepared By : Nicola Hon Designation : Environmental Consultant

Signature :

Date :

12 April 2016

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Photo Record

Photo 1 Muddy water was observed at WM3 on 29 March 2016	Photo 2 Muddy water was observed at WM3 on 29 March 2016
Photo 3 Muddy water was observed at WM3 on 31 March 2016	Photo 4 The effluent in the nullah which connected to Ng Tung River was visually clear on 29 March 2016.
Photo 5 The effluent in the temporary channel which connected to the discharge nullah and Ng Tung River was visually clear on 30 March 2016.	Photo 6 Though some silt cumulated at nullah bed was observed on 31 March 2016, the water flowing in the nullah was visually clear.

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Photo 7 Discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C6 and WM3 on 29 March 2016.	Photo 8 Discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C6 and WM3 on 30 March 2016.
Photo 9 Discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C6 and WM3 on 31 March 2016.

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Figure 1 Location Map for Works Area under Contract 6 and Water Quality Monitoring Location

Z:\Jobs\2013\TCS00694\300\NOE\IR\F0229a.doc

Action-United Environmental Services & Consulting

Fax Cover Sheet

AUES

To Mr. Roger Lee Fax No 2717 3299

Company Dragages Hong Kong Limited

From Nicola Hon Date 12 April 2016

Our Ref TCS00697/13/300/F0230 No of Pages 5 (Incl. cover sheet)

RE Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report of Exceedance of Water Quality at Location WM3 on 29, 30 and 31 March 2016 (Contract 2)

If you do not receive all pages, or transmission is illegible, please contact the originator on (852) 2959-6059 to re-send. Should this facsimile be sent to the wrong fax number, would receiver please destroy this copy and notify Action-United Environmental Services & Consulting immediately. Thank you.

Dear Mr. Lee,

Further to the Notification of Exceedance (NOE) ref.:

TCS00694/13/300/F0200 dated 29 March 2016 TCS00694/13/300/F0209 dated 31 March 2016. TCS00694/13/300/F0225 dated 7 April 2016.

Please find attached the “Investigation Report on Action or Limit Level Non-compliance” referenced above for your follow up action.

Should you have any queries or need further information, please do not hesitate to contact us or the undersigned at Tel: 2959-6059 or Fax: 2959-6079.

Yours Faithfully, For and on Behalf of

Action-United Environmental Services & Consulting

Nicola Hon Environmental Consultant
Encl.
c.c.	Mr. David Chan (EPD) Mr. Gregory Lo (ER, AECOM) Mr. Antony Wong (IEC, SMEC)	Fax: Fax:	2685 1155 2171 3498 By e-mail

安順聯合環境服務及顧問

Action-United Environmental Services & Consulting

Flat A, 20/F, Gold King Industrial Building, 35-41, Tai Lin Pai Road, Kwai Chung, New Territories. Tel (852) 2959-6059 Fax (852) 2959-6079

AUES

Agreement No. CE 45/2008 Liantang/ Heung Yuen Wai Boundary Control Point and Associated Works Investigation Report on Action or Limit Level Non-compliance

Project		CE 45/2008
Date		29 Mar 16	30 Mar 16	31 Mar 16	29 Mar 16	30 Mar 16	31 Mar 16
Location		WM3
Time		12:41	12:35	10:43	12:41	12:35	10:43
Parameter		Turbidity (NTU)			Suspended Solids (mg/L)
Action Level		13.4 AND 120% of upstream control station of the same day			12.6 AND 120% of upstream control station of the same day
Limit Level		14.0 AND 130% of upstream control station of the same day			12.9 AND 130% of upstream control station of the same day
Measured Level	WM3-C	4.9	5.2	2.6	7.0	6.5	14.0
Measured Level	WM3	72.1	121.5	35.3	109.0	54.5	16.0
Exceedance		Limit Level	Limit Level	Limit Level	Limit Level	Limit Level	Limit Level
Investigation Results, Recommendations & Mitigation Measures		1. According to the site information provided from the Contractor of C2 (DHK), construction activities carried out on 29 to 31 March 2016 at admin building was building foundation works (rebar fixing and concreting) and no discharge was made. The works area under C2 and the water monitoring location WM3C and WM3 are shown in Figure 1. 2. According to the site record from the monitoring team during monitoring on 29 to 31 March 2016, the water quality at WM3 was slightly turbid. (Photo 1 to 3) 3. During weekly site inspection on 1 April 2016, it was observed that building foundation works was carried out at Admin Building and the site area was mostly hard paved. (Photo 4) Temporary drainage system and water treatment system was properly implemented. Inspection was carried out at the discharge nullah outside the site boundary and no adverse water impact was observed (Photo 5) 4. As advised by the Contractor of C6, discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C2/ C6 and WM3. (Photo 6 to 8) There were no exceedances triggered in the additional monitoring result on 1 April 2016 when turbid discharge from the unknown outfall was not observed. It is considered that the turbid water detected at WM3 was related to the turbid discharge from the unknown outfall and unlikely due to the works under Contract 2.
Action to be taken		The Contractor is reminded to fully implement the water mitigation measures as recommended in the implementation schedule for environmental mitigation measures in the EM&A Manual.

Prepared By : Nicola Hon Designation : Environmental Consultant

Signature :

^{Date :}12 April 2016

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Photo Record

Photo 1 Muddy water was observed at WM3 on 29 March 2016	Photo 2 Muddy water was observed at WM3 on 29 March 2016
Photo 3 Muddy water was observed at WM3 on 31 March 2016	Photo 4 During weekly site inspection on 1 April 2016, it was observed that building foundation works was carried out at Admin Building and the site area was mostly hard paved.
Photo 5 Inspection was carried out at the discharge nullah outside the site boundary and no adverse water impact was observed	Photo 6 Discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C6 and WM3 on 29 March 2016.

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Photo 7 Discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C6 and WM3 on 30 March 2016.	Photo 8 Discharge of turbid water and accumulated silt was observed from an unknown outfall which located at between the works area of C6 and WM3 on 31 March 2016.

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Figure 1 Location Map for Works Area under Contract 2 and Water Quality Monitoring Location

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Action-United Environmental Services & Consulting