CEDD YL 53/02

Effective from 1 September 2005, Lam Environmental Services (LAM) has been appointed by Hsin Chong Construction to work as the Environmental Team (ET) to implement the Environmental Monitoring and Audit (EM&A) programme for DSD Contract No. DC/2001/09 – San Tin Eastern Main Drainage Channel previously conducted by Stanger Asia Limited.

This report presents the environmental monitoring and auditing work carried out in accordance to the “Main Drainage Channels and Poldered Village Protection Scheme for San Tin, NWNT: Environmental Impact Assessment Study, Environmental Monitoring and Audit Manual” during the period 1^st Oct to 30^th Nov 2006.

The following information relating to this project is documented in the EM&A Manual and, to avoid duplication, it is not presented in detail within the Quarterly report.

· Event-Action Plans;

· Full set of environmental mitigation measures and;

· Contracted environmental requirements.

1.2 Structure of the Report

Section 1 Introduction – details the scope and structure of the report.

Section 2 Project Background – summarizes background and scope of the project, site description, project organization and contact details of key personnel, construction programme and works undertaken during the reporting period.

Section 3 Implementation Status – summarizes the status of Environmental Permits / Licenses, implementation of environmental protection and pollution control / mitigation measures in an updated schedule for the reporting period.

Section 4 Monitoring Requirements – summarizes all monitoring stations, parameters, frequency and quality performance limits.

Section 5 Quarterly Review of Monitoring Results – summarizes the status and review of monitoring, compliance, graphical plots of trends and waste management status in the reporting period.

Section 6 Complaints, Notification of Summons and Prosecution – summarizes the complaints, notification of summons and successful prosecution for breaches of environmental legislation and the actions taken within the reporting period.

Section 7 Conclusion and Recommendations

2 Project Background

2.1 Scope of the Project and Site Description

The construction works under contract no. DC/2001/09 mainly comprise the removal and disposal of contaminated materials, the construction of a reinforced concrete channel, footpaths, drainage works, roadworks, water and landscape works from the Castle Peak Road at San Tin to the Shenzen River some 2.5km downstream.

The site layout plan is shown in Figure 2.1.

2.2 Project Organization and Contact Personnel

Under the organization chart, Resident Engineer, Contractor, Independent Environmental Checker, Environmental Team are appointed to manage and control environmental issues for the construction phase of DC/2001/09. Overall responsibilities and duties of the team are found in the corresponding EM&A Manual. Key personnel and contact particulars are summarized in Table 2.2:

The organization chart for the EM&A programme is attached in Appendix A.

Table 2.2 Contact Details of Key Personnel

Post	Name	Contact No.	Contact Fax	E-mail
Environmental Protection Officer	Ms. Pauline Choi	2835 1847	2591 0558	paulinechoi@epd.gov.hk
Engineer’s Representative	Ir. C.L. Leung / Ir. Gary K.C. Yip	2574 7400	2827 8700	yipgary@dsd.gov.hk
Site Agent	Keniel Kong	2482 9587	2482 9113	KenielK@hcg.com.hk
Independent Environmental Checker (IEC)	Dr. Gui Yi Li	2911 2233	2805 5028	GuiYi.Li@hyderconsulting.com
Environmental Team Leader (ETL)	Raymond Dai	2975 3300	2897 5509	raymonddai@lamlab.com

2.3 Construction Programme and Works

Construction activities carried out during this reporting period are summarized in Table 2.3:

Table 2.3 Construction Activities – Oct-Nov 2006

Location

Construction Works

Section 9

· Geotechnical Instrument Monitoring

· Road Works Construction

· Landscape works

· Construction of u-channel

Section 10

· Geotechnical Instrument Monitoring at Storage Pond

· Wetland Landscaping

· Construction of u-channel and chain link fence

· Variation Order No. 134 - 3 rail parapet and security fence along Border Road

3 Implementation Status

3.1 Status of Regulatory Compliance

A summary of the current status on licences and/or permits on environmental protection pertinent to the Project is shown in Table 3.1.

Table 3.1 Cumulative Summary of Valid Licences and Permits

Permits and/or Licences	Reference No.	Issued Date	Expiry Date	Status
Environmental Permit	EP-124/2002	28-03-2002	-	Issued
Registration of Waste Producer	WPN5113-542-H2913-22	24-01-2003	-	Issued
Notification of Works Under APCO	-	-	-	Notified
Effluent Discharge Licence	1S49/1	04-08-2003	31-08-2008	Issued
Effluent Discharge Licence for Septic Tank System	1S41N/1	20-03-2003	-	Issued
Construction Noise Permit	GW-RN0116-06	22-03-2006	21-09-2006	Expired

3.2 Implementation of Pollution Control / Mitigation Measures

The contractor implemented various environmental mitigation measures as recommended in the EIA report. The implementation schedule is presented in Appendix B.

4 Monitoring Requirements

Locations of environmental monitoring stations are referred in Figure 4.1.

4.1 Air Monitoring

The project has 1 air monitoring station, namely AM1. Details of the air monitoring stations are summarized in Table 4.1.

Table 4.1 Air Quality Monitoring Stations

Station	HK Metric Grid (Easting / Northing)
AM1	826006E / 840543N

Monitoring methodology and calibration details shall be referred to respectively monthly reports.

4.2 Noise Monitoring

The project has two designated Noise Monitoring Stations, namely Tung Chan Wai (NM1) and the pumping station (NM2). Noise monitoring for the pumping station (NM2) shall only be carried out on two occasions, day 1 and day 60 of the commissioning stage. For NM1, due to distance from the works area to the village, and the expanse of container activities in between, a small residential dwelling at Yan Shau Wai slightly to the north of the Tung Chan Wai has been identified as being a more representative monitoring location, coded as NM1(A) for construction phase noise impact monitoring. Details of noise monitoring stations are summarized in Table 4.2.

Table 4.2 Noise Monitoring Stations

Station	HK Metric Grid (Easting / Northing)	Description	Measurement
NM1(A)	825982E / 840137N	Small residential house at Yan Shau Wai slightly to the north of the Tung Chan Wai	Façade

Monitoring methodology and calibration details shall be referred to respectively monthly reports.

4.3 Water Quality Monitoring

The EM&A Manual for this project has proposed one upstream station (WM1), one down stream station (WM2) within the San Tin Eastern Main Drainage Channel and, one upstream station (WM4) and one downstream station (WM3) at the discharge point for the San Tin Drainage Channel, once completed, within the Shenzhen River to be monitored for water quality.

Monitoring methodology and calibration details shall be referred to respectively monthly reports.

4.4 Monitoring Parameters and Frequency

Environmental monitoring programme has been scheduled according to the requirements stipulated in the Brief for EM&A produced for the Project summarized in Tables 4.4.

Table 4.4 Environmental Monitoring Parameters and Frequencies

Station(s)	Parameter	Frequency
AM1	24-hr TSP 1-hr TSP	Once in every 6 days Three times in every 6 days
NM1	L_Aeq(30 min), L₉₀ & L₁₀	Once a week between 0700-1900 hours on normal weekdays
	L_Aeq(5 min), L₉₀ & L₁₀	Once a week between 1900-2300 hours Once a week between 2300-0700 hours Once a week between 0700-1900 hours on holidays
WM1, WM2, WM3, WM4	Temperature, pH, DO, turbidity, SS, NH₃-N and water depth	Once per week

4.5 Environmental Quality Criteria

Environmental quality criteria were determined prior to the commencement of the construction of the project for the purpose of impact monitoring. Various levels established based on the results of baseline monitoring stipulated in the EM&A manual are summarized in Tables 4.5a, 4.5b and 4.5c respectively.

Table 4.5a Action and Limit Levels for Air Quality Monitoring

Parameter	Action Level (µg/m³)	Limit Level (µg/m³)
24-hr TSP	225	260
1-hr TSP	390	500

Table 4.5b Action and Limit Levels for Noise Monitoring

Time Period	Parameter	Action Level	Limit Level
Normal Working Hours: 0700-1900 hrs	L_Aeq(30min)	When one documented complaint is received	75 dB(A)
Restricted Hours: Evenings: 1900-2300 hrs Sundays & Holidays: 0700-2300 hrs	L_Aeq(5min)		70 dB(A)
Restricted Hours: 2300-0700 hrs	L_Aeq(5min)		55 dB(A)

Table 4.5c Action and Limit Levels for Water Quality Monitoring

Parameter	Action Level	Limit Level
Dissolved Oxygen	0.59 (5%-ile of baseline data) for WM2 (downstream station)	0.55 (1%-ile of baseline data) for WM2 (downstream)
Dissolved Oxygen	0.46 (5%-ile of baseline data) for WM3 (downstream station mid-ebb tide)	0.39 (1%-ile of baseline data) for WM3 (downstream station mid-ebb tide)
Turbidity, SS, NH₃-N	120% of upstream control station at the same tide of same day	130% of upstream control station at the same tide of same day
pH	-	6-9

Note:

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

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

3. For pH, non-compliance of the water quality limits occurs when monitoring result is larger than pH value 9 or lower than pH value 6.

5 Quarterly Review of Monitoring and Compliance

5.1 Air Quality

The air quality monitoring results of 1-hr TSP and 24-hr TSP sampled at AM1 in this reporting period are reviewed and summarized in Tables 5.1. Graphical trend is presented in Figure 5.1a-b.

Table 5.1 Quarterly Air Quality Monitoring (24-hr TSP) Summary

Parameter	No. of monitoring	No. of Valid Exceedance	Compliance %
24-hr TSP	9	0 (AL); 0 (LL)	100%
1-hr TSP	27	0 (AL); 0 (LL)	100%

There were no data losses in air quality monitoring and no exceedance reported for 24-hr TSP monitoring and 1-hr TSP monitoring in this reporting period.

5.2 Noise

The noise monitoring results measured at NM1(A) in this reporting period are reviewed and summarized in Tables 5.2. Graphical trend is presented in Figure 5.2.

Table 5.2 Quarterly Noise Monitoring Summary

Period	No. of monitoring	No. of Valid Exceedance	Compliance %
Daytime	9	0 (AL); 0 (LL)	100%
Night time	9	0 (AL); 0 (LL)	100%
Holiday	8	0 (AL); 0 (LL)	100%

There were no data losses in noise monitoring and no exceedance reported during this reporting period. Such results indicate minimal noise impact was created by DC/2001/09 activities.

5.3 Water Quality

Due to shallow depth of the river and the occupation of dense vegetation around the vicinity of monitoring station, water samples could hardly be taken. As requested by EPD dated 24 October 2006, it was agreed that the nearest locations were identified for water quality monitoring for reference purpose.

The water quality monitoring results measured and tested for WM2 and WM3 in this reporting period are reviewed and summarized in Tables 5.3. Graphical trend is presented in Figure 5.3a–j.

Table 5.3 Quarterly Water Quality Monitoring Summary

Parameters, units	Quarterly Averaged		130% beyond baseline data		Exceedance (Y/N)
Parameters, units	WM2	WM3	WM2	WM3	WM2	WM3
pH	7.3	7.2	5.16 – 9.58	5.04 – 9.36	N	N
DO, mg/L	1.1	2.3	0.64	0.56	N	N
Turbidity, NTU	48.1	29.9	51.1	75.7	N	N
SS, mg/L	104.2	74.3	92	83	Y	N
NH₃-N, mg/L	58.7	29.6	52.0	36.1	Y	N

The exceedances over 130% beyond baseline conditions observed are the suspended solid and ammoniacal nitrogen parameters. Work for DC/2001/09 has been confirmed to be fully completed in the vicinity of the monitoring locations and any exceedance(s) could very likely be due to the tidal interference from Shenzhen River and dead vegetation around the sampling locations.

5.4 Waste Monitoring Results

During this reporting period,

· 53.04 ton C&D material was disposed at public fills at Tuen Mun Area 38;

· No treated soil was disposed;

· 7.78 ton general refuse was disposed at landfills;

· No chemical waste was collected by a licensed collector.

6 Complaints, Notification of Summons and Prosecution

No complaint, inspection notice, notification of summons or prosecution was received in this reporting period. Cumulative complaint log, summaries of complaints, notification of summons and successful prosecutions are presented in Table 6a, 6b and 6c respectively.

Table 6a Environmental Complaints Log

Complaint Log No.

Date of Receipt

Received From and Received By

Nature of Complaint

Date Investigated

Outcome

Date of Reply

STEMDC 001

28-07- 2003

EPD

Dead fish in the pond caused bad odour and potential mosquito breeding.

29-07-2003

No visible cause can be identified attributed to construction activities.

29-07-2003

Table 6b Cumulative Statistics on Complaints

Environmental Parameters	Cumulative No. Brought Forward	No. of Complaints This Month	Cumulative No. Project-to-Date
Air	-	-	-
Noise	-	-	-
Water	1	-	1
Waste	-	-	-
Total	1	-	1

Table 6c Cumulative Statistics on Successful Prosecutions

Environmental Parameters	Cumulative No. Brought Forward	No. of Successful Prosecutions this month (Offence Date)	Cumulative No. Project-to-Date
Air	2	-	2
Noise	-	-	-
Water	-	-	-
Waste	-	-	-
Total	2	-	2

7 Conclusion

The EM&A programme was carried out in accordance with the EM&A Manual requirements, minor alterations to the programme proposed in the previous EM&A Report were made in response to changing circumstances.

3 limit level exceedances for DO; 3 limit level exceedances for turbidity and 4 limit level exceedances for SS were recorded in this reporting period. All exceedances are confirmed to be irrelevant to the construction operations of contract DC/2001/09.

There was no notice of compliant or prosecution reported in this reporting period. Such results indicate that the construction operation generally performed acceptablly against the noise, air and water quality environmental auditing criteria.

CLIENT:	PREPARED BY:
Hsin Chong Construction Co. Ltd. Hsin Chong Center, 107-109 Wai Yip Street, Kwun Tong, Kowloon, H.K.	Lam Environmental Services Room 1411-16 14/F Honour Industrial Centre 6 Sun Yip Street, Chai Wan, H.K. Telephone: (852) 2897-3282 Facsimile: (852) 2897-5509 E-mail: info@lamlab.com Website: http://www.lamlab.com


	Certified by:
	Raymond Dai Environmental Team Leader
	DATE:
	12 Jan 2007