10 ENVIRONMENTAL SITE INSPECTION

Site Audits

10.1 Site audits were carried out by ET on weekly basis to monitor the timely implementation of proper environmental management practices and mitigation measures on the Contract site. The summaries of site audits are presented in Table 10.1 and Appendix P.

Table 10.1 Summary of Site Audit

Environmental Site Inspection	Works Contracts
Environmental Site Inspection	ND/2019/01	ND/2019/02	ND/2019/03	ND/2019/04	ND/2019/05	ND/2019/06	ND/2019/07
Weekly site audit with representative of the Supervisor’s Representative and the Contractor	7, 14, 21 and 28 Dec 21	1, 8, 17, 22 and 29 Dec 21	3, 10, 14, 24 and 31 Dec 21	2, 10, 16, 23 and 30 Dec 21	8, 13, 20 and 28 Dec 21	2, 9, 13, 23 and 30 Dec 21	3, 9, 17, 24 and 31 Dec 21
Joint Site Audit with representative of the Supervisor’s Representative, the Contractor and IEC	14 Dec 21	17 Dec 21	14 Dec 21	16 Dec 21	8 Dec 21	13 Dec 21	9 Dec 21

10.2 During site inspections in the reporting month, no non-conformance was identified. The observations and recommendations made during the audit sessions are summarised in Table 10.2.

Table 10.2 Observations and Recommendations during Site Audits

	Date	Observations and Recommendations	Follow-up
Contract No.: ND/2019/01
*Air Quality*	14/12/2021	Dusty stockpile should be covered by imperious sheeting.	Improvement/Rectification was observed during follow-up audit session on 21 December 2021.
*Ecology*	14/12/2021	Solid dull green barrier should be enhanced along river channel.	Improvement/Rectification was observed during follow-up audit session on 21 December 2021.
*Waste/ Chemical Management*	28/12/2021	Drip tray should be provided for chemical storage.	Follow-up action is needed to be reported in the following month.
Contract No.: ND/2019/02
*Air Quality*	24/11/2021	NRMM Label was observed faded. Contractor was reminded to replace the NRMM Label.	Improvement/Rectification was observed during follow-up audit session on 1 December 2021.
	8/12/2021	Replace faded NRMM label on generator. (North Bridge)	Item was remarked as 211217-R02. Follow-up action is needed to be reviewed.
	17/12/2021	Replace faded NRMM label on generator. (North Bridge)	Improvement/Rectification was observed during follow-up audit session on 22 December 2021.
*Water Quality*	1/12/2021	Dusty slope surface should be covered. (North Bridge)	Improvement/Rectification was observed during follow-up audit session on 8 December 2021.
	1/12/2021	Remove dusty materials beside the U-channel and clear the stagnant water inside the U-channel. (South Bridge)	Item was remarked as 211208-R01. Follow-up action is needed to be reviewed.
	1/12/2021	To enhance water control measure to prevent any discharge of muddy water to Sheung Yue River. (河口)	Item was remarked as 211208-O04. Follow-up action is needed to be reviewed.
	8/12/2021	Remove dusty materials beside the U-channel and clear the stagnant water inside the U-channel. (South Bridge)	Item was remarked as 211217-R01. Follow-up action is needed to be reviewed.
	8/12/2021	To enhance water control measure to prevent any discharge of muddy water to Sheung Yue River. (河口)	Item was remarked as 211217-O03. Follow-up action is needed to be reviewed.
	8/12/2021	To clear oil leakage from generator on site. (North Bridge)	Improvement/Rectification was observed during follow-up audit session on 17 December 2021.
	17/12/2021	Remove dusty materials beside the U-channel and clear the stagnant water inside the U-channel. (South Bridge)	Item was remarked as 211222-R01. Follow-up action is needed to be reviewed.
	17/12/2021	To enhance water control measure to prevent any discharge of muddy water to Sheung Yue River. (河口)	Item was remarked as 211222-O02. Follow-up action is needed to be reviewed.
	22/12/2021	Remove dusty materials beside the U-channel and clear the stagnant water inside the U-channel. (South Bridge)	Item was remarked as 211229-R01. Follow-up action is needed to be reviewed.
	22/12/2021	To enhance water control measure to prevent any discharge of muddy water to Sheung Yue River. (河口)	Item was remarked as 211222-O02. Follow-up action is needed to be reviewed.
	22/12/2021	To enhance water control measure to prevent any discharge of muddy water to Sheung Yue River. (North Bridge)	Item was remarked as 211222-O03. Follow-up action is needed to be reviewed.
	29/12/2021	Remove dusty materials beside the U-channel and clear the stagnant water inside the U-channel. (South Bridge)	Follow-up action is needed to be reported in the following month.
	29/12/2021	To enhance water control measure to prevent any discharge of muddy water to Sheung Yue River. (河口)	Follow-up action is needed to be reported in the following month.
	29/12/2021	To enhance water control measure to prevent any discharge of muddy water to Sheung Yue River. (North Bridge)	Follow-up action is needed to be reported in the following month.
	29/12/2021	Clear and treat the stagnant muddy water inside the U-Channel with desilting facilities before discharge. (North Bridge)	Follow-up action is needed to be reported in the following month.
Contract No.: ND/2019/03
*Air Quality*	3/12/2021	Dusty haul road should be sprayed with water regularly.	Improvement/Rectification was observed during follow-up audit session on 10 December 2021.
	10/12/2021	Dusty stockpile should be covered by imperious sheeting.	Item was remarked as 211214-R02. Follow-up action is needed to be reviewed.
	14/12/2021	Exposed worksite and haul road should be watered regularly.	Improvement/Rectification was observed during follow-up audit session on 24 December 2021.
	14/12/2021	Excavated or stockpile of dusty materials should be covered by impervious sheeting or sprayed with water.	Improvement/Rectification was observed during follow-up audit session on 24 December 2021.
	24/12/2021	Any portion of road leading to construction site within 30m of a vehicle exit should be kept free from dust and mud. Mud was observed along portion of road next to Sheung Yue River.	Improvement/Rectification was observed during follow-up audit session on 31 December 2021.
*Water Quality*	14/12/2021	To clean wheel-washing bay regularly.	Item was remarked as 211224-R01. Follow-up action is needed to be reviewed.
	24/12/2021	To clean wheel-washing bay regularly.	Item was remarked as 211231-R01. Follow-up action is needed to be reviewed.
	24/12/2021	To provide adequate wheel-washing bay facilities at every vehicle exit so as to prevent vehicles leaving site with earth mud.	Improvement/Rectification was observed during follow-up audit session on 31 December 2021.
	31/12/2021	To clean wheel-washing bay regularly.	Follow-up action is needed to be reported in the following month.
*Waste/ Chemical Management*	23/11/2021	Empty chemical container should be stored properly in designated area.	Item was remarked as 211203-R02. Follow-up action is needed to be reviewed.
	3/12/2021	Empty chemical container should be stored properly in designated area.	Improvement/Rectification was observed during follow-up audit session on 10 December 2021.
	14/12/2021	Empty chemical containers should be stored at designated areas.	Improvement/Rectification was observed during follow-up audit session on 24 December 2021.
Contract No.: ND/2019/04
*Air Quality*	2/12/2021	Dusty stockpile should be covered by imperious sheeting.	Improvement/Rectification was observed during follow-up audit session on 10 December 2021.
*Noise*	2/12/2021	To enhance noise mitigation measures along Shek Wu San Tsuen.	Item was remarked as 211210-R01. Follow-up action is needed to be reviewed.
	10/12/2021	To enhance noise mitigation measures along Shek Wu San Tsuen.	Item was remarked as 211216-R01. Follow-up action is needed to be reviewed.
	16/12/2021	To enhance noise mitigation measures along Shek Wu San Tsuen.	Item was remarked as 211223-R01. Follow-up action is needed to be reviewed.
	23/12/2021	To enhance noise mitigation measures along Shek Wu San Tsuen.	Item was remarked as 211230-R01. Follow-up action is needed to be reviewed.
	30/12/2021	To enhance noise mitigation measures along Shek Wu San Tsuen.	Follow-up action is needed to be reported in the following month.
*Ecology*	2/12/2021	To provide 10m buffer zone along Siu Hang San Tsuen Stream.	Item was remarked as 211210-R02. Follow-up action is needed to be reviewed.
	10/12/2021	To provide 10m buffer zone along Siu Hang San Tsuen Stream.	Item was remarked as 211216-R02. Follow-up action is needed to be reviewed.
	16/12/2021	To provide 10m buffer zone along Siu Hang San Tsuen Stream.	Item was remarked as 211223-R02. Follow-up action is needed to be reviewed.
	23/12/2021	To provide 10m buffer zone along Siu Hang San Tsuen Stream.	Improvement/Rectification was observed during follow-up audit session on 30 December 2021.
*Water Quality*	30/12/2021	To ensure sediment in U-channel was cleared regularly and avoid accumulation.	Follow-up action is needed to be reported in the following month.
Contract No.: ND/2019/05
*Air Quality*	29/11/2021	Dusty stockpile should be covered by imperious sheeting.	Improvement/Rectification was observed during follow-up audit session on 8 December 2021.
	8/12/2021	Faded NRMM label shall be replaced.	Improvement/Rectification was observed during follow-up audit session on 13 December 2021.
	20/12/2021	Display valid NRMM label on regulated machine.	Improvement/Rectification was observed during follow-up audit session on 28 December 2021.
*Water Quality*	8/12/2021	Enhance mitigation measures to prevent surface runoff to Ma Wat River.	Improvement/Rectification was observed during follow-up audit session on 13 December 2021.
	13/12/2021	Enhance mitigation measures to prevent surface runoff to Ma Wat River.	Improvement/Rectification was observed during follow-up audit session on 20 December 2021.
	28/12/2021	Enhance mitigation measures to prevent surface runoff to Ma Wat River.	Follow-up action is needed to be reported in the following month.
*Waste / Chemical Management*	29/11/2021	Remove dusty materials beside the U-Channel and enhance mitigation measure to prevent muddy water runoff to the U-Channel.	Improvement/Rectification was observed during follow-up audit session on 8 December 2021.
*Waste / Chemical Management*	20/12/2021	C&D materials should be segregated from other waste.	Improvement/Rectification was observed during follow-up audit session on 28 December 2021.
Contract No.: ND/2019/06
*Waste / Chemical Management*	2/12/2021	General refuse should be disposed of regularly to avoid accumulation.	Improvement/Rectification was observed during follow-up audit session on 9 December 2021.
Contract No.: ND/2019/07
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Implementation Status of Environmental Mitigation Measures

10.3 According to the EIA Report, EPs and the Updated EM&A Manual, the mitigation measures detailed in the documents are recommended to be implemented during the construction phase. An updated summary of the Environmental Mitigation Implementation Schedule is provided in Appendix Q. The photographic records of measures as stipulated in EP to mitigate environmental impacts in the reporting month are presented in Table 10.3.

Table 10.3 Photographic Records and Implementation Status of Measures

EP No.	Condition	Photographic Record	Implementation Status
EP-466/2013	2.9	To minimise adverse impacts on habitats of ecological imprtance in the vicinity of the Project, 2m high solid dull green site barrier fences shall be erected around all active works areas.(Figure 12)	^^[^1]
EP-468/2013/A	2.11	To minimise adverse impacts on habitats of ecological importance in the vicinity of the Project, 2m high solid dull green site barrier fences shall be erected around all active works areas.(Figure 14)	^^[^1]
EP-469/2013	2.7	To minimise adverse impacts on habitats of ecological importance in the vicinity of the Project, 2m high solid dull green site barrier fences shall be erected around all active works areas.(Figure 15)	^^[^1]
EP-473/2013/A	2.13	To minimise adverse impacts on habitats of ecological importance in the vicinity of the Project, 2m high solid dull green site barrier fences shall be erected around all active works areas.(Figure 16)	^^[^1]
EP-475/2013/A	2.7	To minimise adverse impacts on habitats of ecological importance in the vicinity of the Project, 2m high solid dull green site barrier fences shall be erected around all active works areas.(Figure 17)	^^[^1]
Implementation status:		^ Mitigation measure was fully implemented * Observation/reminder was made during site audit but improved/rectified by the contractor # Observation/reminder was made during site audit but not yet improved/ rectified by the contractor X Non-compliance of mitigation measure · Non-compliance but rectified by the contractor N/A Not Applicable at this stage as no such site activities were conducted in the reporting period

[1]: Barrier fences might be subjected to change according to phasing plan designed at detailed design stage

10.4 Under EP-467/2013/A (Condition 2.9), to minimise adverse impacts on habitats of ecological importance in the vicinity of the Project, 2m high solid dull green site barrier fences shall be erected around all active works areas. As the Works programme under above EPs were still under preparation work and the barrier fences erection was still progressing in the Reporting Month, 2m high solid dull green site barrier fences will be checked once in place. The Hoarding Plan of the above EPs is shown in Figure 13.

Implementation Status of Air Quality and Noise Mitigation Measures

10.5 According to the EIA Report and the Updated EM&A Manual, the Air quality and Noise mitigation measures detailed in the documents are recommended to be implemented during the construction phase. Air quality and Noise mitigation measures implemented by the contractors were closely monitored to prevent water pollution, especially during dry season. An updated summary of the Environmental Mitigation Implementation Schedule is provided in Appendix Q. Specific Air quality and Noise mitigation measures for major construction works in the reporting month are presented in Table 10.4.

Table 10.4 Specific Air Quality and Noise Mitigation Measures for Major Construction Works in the Reporting Month

Works Contracts

Photographic Records

ND/2019/01

Hard paved exposed slope surface

Covering dusty stockpile

ND/2019/02

Hard paved exposed haul road

Hoarding not less than 2.4m tall

ND/2019/03

Deployment of noise barriers between construction site and NSRs

Regulated machines display with Non-road Mobile Machinery labels

ND/2019/04

Access road watered regularly

Dusty haul road watered regularly

ND/2019/05

Covering dusty stockpile

Deployment of noise barriers between construction site and NSRs

ND/2019/06

Grasscrete for slope protection

Hard paved exposed haul road

ND/2019/07

Covering exposed slope surface with tarpaulin

Vehicle washing facilities at exit point

Solid and Liquid Waste Management Status

10.6 Waste generated from Contract No. ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05, ND/2019/06 and ND/2019/07 include inert construction and demolition (C&D) materials and non-inert C&D wastes in the Reporting Month.

10.7 The amount of wastes generated by the construction works of the Contract No. ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05, ND/2019/06 and ND/2019/07 during the reporting month are shown in Appendix R.

10.8 The Contractors are advised to minimize the wastes generated through recycling or reusing. All mitigation measures stipulated in the Updated EM&A Manual and waste management plans shall be fully implemented. The status of implementation of waste management and reduction measures are summited in Appendix Q.

Ecological Mitigation Measures – Creation of Long Valley Nature Park (LVNP)

10.9 From the findings of EIA Report, the area of Long Valley has been assessed as of high to very high ecological value and is the largest contiguous area of freshwater wetland habitats in Hong Kong. To safeguard the ecological value of Long Valley, about 37 hectares of land in Long Valley has been proposed to develop into Long Valley Nature Park (LVNP) for conserving and enhancing the ecologically important environment as well as for compensation of the wetland loss due to the NDA development.

10.10 LVNP is developed according to approved Habitat Creation and Management Plan (HCMP) submitted under EP-468/2013/A. The HCMP provides a framework and specifications for development and management of the LVNP and guides the development to maintain and enhance the 37ha of low-lying wetland habitats.

10.11 Regarding to the design, the zoning of land use in the LVNP is intended to maintain the existing mosaic pattern of wet and dry agriculture, while controlling the activities that could potentially disturb target habitats and species. The LVNP will divide into three broad zones of land use as below:

• Biodiversity Zone of about 21 hectares largely designated for biodiversity conservation through cultivation of specified crops and habitat management.

• Agricultural Zone of about 11 hectares designated for commercially focuses crop production and eco-friendly agricultural practice for farming.

• Visitor Zone of about 5 hectares designed to accommodate visitors as well as storage and other facilities and for educational purposes.

10.12 The construction of the LVNP started in late 2019 and is expected to be completed in 2023. During construction period, the progress of construction and wetland enhancement works are under observation by different stakeholders including AFCD and green groups. Close communication between AFCD and CEDD are conducted to exchange views on conservation, restoration and management of habitats as well as on the planning and design of the park. Also, advices from green groups, Hong Kong Bird Watching Society (HKBWS) and The Conservancy Association (CA), are taken on habitat management of Long Valley and potential effects on habitat and wildlife of each individual work conducted in Long Valley. Regular meeting are held monthly on 15^th December 2021 in the reporting month to share the progress of LVNP with different stakeholders, including CEDD, AFCD, CA, HKBWS, Contractor, ET, IEC and farmers.

10.13 Proposals on wetland creation and restoration, dry agricultural land creation, pond creation, water treatment wetland and design of irrigation channel are submitted by the Contractor to achieve the objectives stated in HCMP and accepted by the Engineer with consent from AFCD before implementation. The Contractor will consult with the stakeholders for recommendations and suggestions on mitigation measures to minimise the environmental impacts arising from construction works. The progress of works will be arranged to minimise impacts to avifauna and maintain the habitat for avifauna. The photographic records of site activities in LVNP are presented in Table 10.5.