EXECUTIVE SUMMARY

ES 1 An Environmental Permit (EP-085/2000/C) was granted to Highways Department by the Environmental Protection Department for the construction of Route 8 Project between Tsing Yi and Cheung Sha Wan. This EP covers four phases of the Route 8 Project namely Phase 1 – Ngong Shuen Chau Viaduct, Phase 2a – Nam Wan Tunnel and West Tsing Yi Viaduct, Phase 2b – East Tsing Yi Viaduct and Phase 3 – Stonecutters Bridge.

ES 2 This is the 52^nd monthly Environmental Monitoring and Audit (EM&A) report for “Phase 1 - Route 8 Ngong Shuen Chau Viaduct Contract (HY/2000/21)”. This report presents the results of the EM&A works conducted during the period between 29^th October 2006 and 28^th November 2006 in accordance with the EM&A Manual which forms part of the EIA Report (Register No. AEIAR-018/1999).

ES 3 During the monitoring period, some of the major construction activities undertaken during normal hours are highlighted as follows:

i. booster pump house construction;

ii. excavation;

iii. traffic diversions;

iv. utilities diversions and installation;

v. bridge deck construction;

vi. viaduct finishing and surfacing,

vii. segment delivery, erection and fixing; and

viii. deck parapet erection and fixing.

ES 4 During the monitoring period, the major construction activities undertaken during evening, night time and public holidays are highlighted as follows:

i. segment delivery, fixing and erection; and

ii. deck parapet erection and fixing.

ES 5 Monitoring of Total Suspended Particulates (TSP) and Noise were carried out in accordance with the EM&A Manual. Weekly site inspections were conducted by the ET on 1^st, 10^th, 17^th and 22^nd November 2006 and the joint IEC monthly audit was conducted on 22^nd November 2006. Joint inspections were carried out with EPD on 1^st and 15^th November 2006.

Air Quality

ES 6 A total of 45 sets of 1-hour TSP and 15 sets of 24-hour TSP measurement were taken during the reporting period at ASR1, ASR2 and ASR3 and the results of all measurements taken were below the Action/Limit (AL) Levels.

Noise

ES 7 In order to assess the construction noise impact effectively for all noise monitoring locations (NSR1 to NSR3) from this Contract, an adjustment approach was adopted since 1^st March 2005 and had been consulted with EPD to audit merely the construction noise levels against the statutory noise limits. The measured noise levels were adjusted with the corresponding baseline levels in order to facilitate the interpretation of the construction noise levels and this in turn would determine the actual construction noise impact contributed solely by the Phase 1 construction activities.

Daytime Monitoring

ES 8 A total of 15 sets of L_eq(30min) measurement were taken in the daytime (i.e. 0700 to 1900 hours on normal weekdays) at all monitoring stations (NSR1, NSR2 and NSR3) during the reporting period and no exceedances were recorded.

Evening-time Monitoring

ES 9 A total of 4 sets of 6 x L_eq(5min) measurements were taken in the evening-time (i.e. 1900 to 2300 hours) at the closest monitoring station, NSR 2, during the reporting period and no exceedances were recorded.

Night-time Monitoring

ES 10 A total of 4 sets of 4 x L_eq(5min) measurements were taken at night-time (i.e. 2300 to 0700 next day) at the closest monitoring station, NSR 2, during the reporting period and no exceedances were recorded.

Public-holiday Monitoring

ES 11 A total of 7 sets of 6 x L_eq(5min) measurements were taken in public holidays (i.e. 0700 to 1900 hours during public holiday) at all three monitoring stations and no exceedances were recorded.

Water Quality

ES 12 A total of 3 Effluent Discharge Licenses were granted by EPD. In accordance with the conditions of the licenses, water sampling at designated discharge points shall be carried out on a monthly basis for area P1-SA1 (Part 1) (Grid 1 to 9) and on a quarterly basis for areas P1-SA1 (Part 2) (Grid 10 to 27, Container Port Road E/B), P1-SA6, P1-SA8 and P1-SA11.

ES 13 Eight water samples were taken for the whole site by CHEC on 30^th October 2006. The water samples were subsequently tested by a HOKLAS accredited laboratory and the results indicated that they have fully complied with the Specific Condition as stipulated in the approved license. In addition, pH and COD were also analyzed and the results also complied with the limits stipulated in the approved licenses.

ES 14 Three water samples were taken for P1-SA1 (Part 1, Grid 1 to 9) by CHEC on 30^th November 2006. The results of the water samples will be reported in the next EM&A monthly report. The next sampling is scheduled for December 2006 for P1-SA1 (Part 1, Grid 1 to 9).

Waste Management

ES 15 A revised Waste Management Plan (Rev. 17) was submitted to EPD for information on 11^th May 2006 with the latest information including the most up to date estimation of inert C&D materials and non-inert C&D materials

ES 16 With effect from 6^th February 2005, all inert C&D material had been disposed of at Tuen Mun Fill Bank. The trip ticket system has been implemented effectively during the reporting period.

ES 17 A total of 209 no. of trucks (approximately 941 m³) of inert C&D materials were delivered to Tuen Mun Fill Bank during the reporting period. Approximate 115.79 tonnes of C&D waste was produced on-site and were delivered to SENT. In addition, no chemical waste was disposed off site during the reporting period.

ES 18 On 7^th December 2005, approval was granted by PFC, CEDD to import a maximum of 3,000m³ of soft material from “HY2002/26 – Stonecutters Bridge” for re-usage purposes. A total of 2,004m³ of soft material were delivered from HY2002/26 to Phase 1 Contract since December 2005.

Covering of dump trucks delivering dusty materials off site

ES 19 In order to ensure the covering would be secured and maintained throughout the journey to off-loading destinations, regular training has been provided for frontline staff and reminding notices have been given to all dump truck drivers carrying C&D materials leaving the site.  In addition, ad hoc meetings were held between CHEC and their sub-contractors regarding to the rules for transportation of C&D materials to designated disposal locations.

To further strengthen the current trip ticket system, CHEC has imposed a penalty system for any dump trucks uncovering outside TMA38 with effect from 9^th November 2006.  Furthermore, surprise checks by ET, RSS and CHEC have also been carried out to ensure compliance of dump trucks delivering C&D materials to TMA38 at least once a week since 13^th November 2006 and photographic records for each dump truck leaving the site have also been taken since 30^th November 2006 to ensure each dump truck leaving the site was covered properly.

Site Audits / Inspections

ES 20 Weekly site inspections were carried out by the ET and the major findings are presented below:

Item	Findings	Corrective and Preventive measures proposed by CHEC	Effectiveness of measures
1	Open stockpiles of dusty materials were not entirely covered by tarpaulin sheet at area P1-SA6 (STP).	All idled open stockpiles (not in operation) have been covered by impervious sheeting and the remaining stockpiles should be covered by impervious sheeting after operation or at the end of each working day.	Completed and closed. (Please refer to Appendix Q, Photo 01 & 02).
2	CHEC was reminded to enhance the dust control measures for the exposed earth at area P1-SA1 (Part 2, beside abutment E1) during dry season.	The frequency of water spraying by means of using water bowser and sprinklers has been increased to further mitigate the dust impact during the dry season.	Completed and closed. (Please refer Appendix Q Photo 03).
3	No wheel washing facilities were provided at the site exits of area P1-SA1 (Part 2, Container Port Road West Bound) and at Roundabout CP3/End.	The vehicular exits at P1-SA1 (Part 2, Container Port Road West Bound) and at Roundabout CP3/End had been blocked.	Completed and closed. (Please refer Appendix Q Photo 04 to 05).
4	Petrol interceptor was not properly functioning at vehicular exit point at area P1-SA1 (Part 2, Pier E16).	The petrol interceptor has been modified and it was found functioning properly according to the subsequent site inspection.	Completed and closed. (Please refer to Appendix Q, Photo 06).

ES 21 The monthly IEC audit was carried out on 22^nd November 2006, one reminder was recorded and it is presented in the table below.

Item	Findings	Corrective and Preventive measures proposed by CHEC	Effectiveness of measures
1	The petrol interceptor for wheel washing facilities at vehicular exit point at area P1-SA1 (Part 2, Pier E16) was not properly functioning. CHEC was reminded to further improve the petrol interceptor	The petrol interceptor has been modified and it was found functioning properly according to the subsequent ET’s site inspection.	Completed and closed. (Please refer to Appendix Q, Photo 06).

ES 22 A joint site inspection was carried out with EPD (Environmental Compliance Division) on 1^st November 2006. It was noted that appropriate environmental mitigation measures have been implemented by CHEC on site and the performance of such environmental measures was satisfactory. However, further improvements could be adopted to enhance the current site conditions as advised by the EPD and they are highlighted as follows:

Item	Findings	Corrective and Preventive measures proposed by CHEC	Effectiveness of measures
1	All open stockpiles of dusty material shall be covered entirely by impervious sheeting or to spray with sufficient water to maintain the entire surface moist, in particular at area P1-SA1 (Part 2).	All idled open stockpiles (not in operation) have been covered by impervious sheeting and the remaining stockpiles should be covered by impervious sheeting after operation or at the end of each working day.	Completed and closed. (Please refer to Appendix Q, Photo 07).
2	The frequency of water spraying by means of using water bowser and sprinklers should be increased to further mitigate the dust impact generated from the construction site during dry season	The frequency of water spraying by means of using water bowser and sprinklers has been increased to further mitigate the dust impact during the dry season	Completed and closed. (Please refer to Appendix Q, Photo 03).

ES 23 A joint site inspection was carried out amongst EPD (Environmental Compliance Division and Environmental Assessment Division), ET, HyD, IEC and CHEC on 15^th November 2006. It was noted that the performance of environmental mitigation works that carried out by CHEC was in general satisfactory and EPD had no adverse comments.

Environmental Permits / Licenses

ES 24 The following permits / licenses have been granted by EPD for the construction of the Phase 1 Contract and they are:-

i. Environmental Permit (EP-085/2000/C)

ii. Chemical Waste Producer Registration (WPN – 5213-269-C3215-01)

iii. 3 Effluent Discharge Licences (EP482/269/0038/I; EP482/269/0039/I & EP482/269/0040/I)

iv. 4 Construction Noise Permits.

Environmental Complaints

ES 25 No environmental complaints were received during the reporting period.

ES 26 A total of 10 environmental complaints had been received for Route 8 - Phase 1 Ngong Shuen Chau Viaduct contract since the commencement of the construction.

Notifications of Summons and Prosecution

ES 27 Since the commencement of construction, no notifications of summons nor prosecution were received on the environmental performance for this Contract.

Future Key Issues

ES 28 The tentative program of major site activities as well as the impact prediction and control measures for the coming three months, i.e. December 2006 to February 2007 are summarized below:

Construction Works	Major Impact Prediction	Control Measures
Utilities installation and diversions; booster pump house, and bridge deck construction; segment, desk parapet and noise barrier erection.	Air impact (dust and machine emission)	i. Frequent watering of haul road and unpaved/exposed areas; ii. Frequent watering or covering stockpiles with tarpaulin or similar means; iii. Regular maintenance of onsite machineries and vehicles; and iv. Reinstate the worked area by hydro-seed or similar means.
	Water quality impact (muddy run-off)	i. Collecting and recycling of wastewater produced on-site if possible; ii. Perimeter protection such as sandbag barriers and sealing the bottom of concrete barrier to avoid run-off entering the existing storm water drainage system; iii. Diverting the collected effluent to de-silting facilities for treatment before discharge to public drains; and iv. Covering of exposed slope with tarpaulin or similar means during rainstorm
	Noise Impact	i. Scheduling of noisy construction activities if necessary to avoid persistent noisy operation; ii. Controlling the number of plants use on site; iii. Regular maintenance of machines; and iv. Use of acoustic barriers if necessary.