Table 10.2 Observations and Recommendations during Site Audits

Parameters	Date	Observations and Recommendations	Follow-up
Contract No.: ND/2019/01
*Water Quality*	07/11/2023	Mud should be cleaned regularly as maintenance for drainage system at 1C.	Improvement/Rectification was observed during follow-up audit session on 17 Nov 2023.
*Air Quality*	31/10/2023	Dusty debris was observed at 9b exit. Contractor was reminded to clean it ASAP.	Improvement/Rectification was observed during follow-up audit session on 7 Nov 2023.
	31/10/2023	Cover the temporary storage of cement bags at Pak Shek Au.	Improvement/Rectification was observed during follow-up audit session on 7 Nov 2023.
	17/11/2023	Exposed worksites and haul road at Portion 8a and Pak Shek Au should be watered regularly as dust suppression.	Improvement/Rectification was observed during follow-up audit session on 21 Nov 2023.
	17/11/2023	Stock of bags of cement at Portion 8a should b e properly covered.	Improvement/Rectification was observed during follow-up audit session on 21 Nov 2023.
	21/11/2023	Review and enhance the hydroseeding condition at Pak Shek Au.	Improvement/Rectification was observed during follow-up audit session on 29 Nov 2023.
	21/11/2023	Exposed haul road at Portion 1A and 1C should be watered regularly as dust suppression.	Improvement/Rectification was observed during follow-up audit session on 29 Nov 2023.
*Waste / Chemical Management*	31/10/2023	Provide drip tray for the chemical / fuel containers at Portion 8A.	Improvement/Rectification was observed during follow-up audit session on 7 Nov 2023.
	07/11/2023	Provide drip tray for the chemical / fuel containers at Portion 1C.	Improvement/Rectification was observed during follow-up audit session on 17 Nov 2023.
	07/11/2023	Provide drip tray for mobile generator at Pak Shek Au. Oil spillage was observed. Contractor was reminded to clean it immediately.	Improvement/Rectification was observed during follow-up audit session on 17 Nov 2023.
Contract No.: ND/2019/02
*Water Quality***	27/10/2023	Wheel-washing facilities should be provided and used at vehicle exits at Ho Sheung Heung and Dills Corner site area to ensure that vehicles are cleaned before leaving the site.	Improvement/Rectification was observed during follow-up audit session on 1 Nov 2023.
	27/10/2023	Contractor was reminded to enhance the existing mitigation measures to prevent muddy discharge outside of site boundary at the exit next to the cycling track.	Improvement/Rectification was observed during follow-up audit session on 1 Nov 2023.
	01/11/2023	Provide maintenance for the water mitigation measure to prevent surface runoff.	Item remarked as 231108-R02. Follow-up action is needed to be review.
	08/11/2023		Item remarked as 231115-R02. Follow-up action is needed to be review.
	15/11/2023		Item remarked as 231124-R02. Follow-up action is needed to be review.
	24/11/2023		Item remarked as 231129-R02. Follow-up action is needed to be review.
	29/11/2023		Follow-up action is needed to be reported in the following month.
	15/11/2023	Additional sandbags should be provided near the cycling track.	Item remarked as 231124-R03. Follow-up action is needed to be review.
	24/11/2023	Provide maintenance for the sandbags to prevent muddy water/ debris discharge onto cycling track.	Item remarked as 231129-R03. Follow-up action is needed to be review.
	29/11/2023		Follow-up action is needed to be reported in the following month.
	01/11/2023	Leakage of water from wetsep was observed. Contractor was reminded to provide maintenance for the wetsep at Portion 11.	Improvement/Rectification was observed during follow-up audit session on 8 Nov 2023.
	15/11/2023	Wheel-washing wastewater were observed seeping through the concrete bund protecting the nearby river. Contractor was reminded to provide maintenance to the concrete bund to prevent untreated wastewater discharge.	Item remarked as 231124-R05. Follow-up action is needed to be review.
	24/11/2023	Provide maintenance to the concrete bund to prevent wheel-washing wastewater discharge.	Item remarked as 231129-R05. Follow-up action is needed to be review.
	29/11/2023		Follow-up action is needed to be reported in the following month.
	15/11/2023	Exposed slope at Portion 5 should be properly covered by tarpaulin sheets.	Item remarked as 231124-R06. Follow-up action is needed to be review.
	24/11/2023		Item remarked as 231129-R06. Follow-up action is needed to be review.
	29/11/2023		Follow-up action is needed to be reported in the following month.
	15/11/2023	Silt accumulating in the nullah near the water outlet at the material storage area should be cleared immediately. Contractor was also reminded to enhance water mitigation measures to prevent further accumulation of silt.	Item remarked as 231124-R07. Follow-up action is needed to be review.
	24/11/2023	Silt accumulating in the nullah near the water outlet at the material storage should be cleared continuously. Contractor was also reminded to enhance water mitigation measures to prevent further accumulation of silt.	Item remarked as 231129-R07. Follow-up action is needed to be review.
	29/11/2023		Follow-up action is needed to be reported in the following month.
	29/11/2023	Muddy water in Portion 11 should be cleared immediately to avoid overflow.	Follow-up action is needed to be reported in the following month.
	29/11/2023	Leakage of muddy water was observed at Portion 4. Contractor was reminded to repair the drainage system.	Follow-up action is needed to be reported in the following month.
	29/11/2023	Leakage of untreated water was observed. Contractor was reminded to review the water treatment system of Portion 5.	Follow-up action is needed to be reported in the following month.
*Air Quality*	01/11/2023	Double sand bags should be provided to keep clean from the cycling path.	Item remarked as 231108-R03. Follow-up action is needed to be review.
	08/11/2023		Item remarked as 231115-R03 (water quality). Follow-up action is needed to be review.
	15/11/2023	Exposed haul road and worksites should be watered regularly for dust suppression.	Improvement/Rectification was observed during follow-up audit session on 24 Nov 2023.
	24/11/2023	Exposed haul road at Portion 11 should be watered regularly for dust suppression.	Improvement/Rectification was observed during follow-up audit session on 29 Nov 2023.
*Landscape and Visual*	27/10/2023	The removed green hoarding along Sheung Yue River due to the construction works should be replaced and maintained properly as soon as possible.	Item remarked as 231101-R01. Follow-up action is needed to be review.
	01/11/2023		Item remarked as 231108-R01. Follow-up action is needed to be review.
	08/11/2023		Item remarked as 231115-R01. Follow-up action is needed to be review.
	15/11/2023		Item remarked as 231124-R01. Follow-up action is needed to be review.
	24/11/2023		Item remarked as 231129-R01. Follow-up action is needed to be review.
	29/11/2023		Follow-up action is needed to be reported in the following month.
*Waste / Chemical Management*	27/10/2023	Contractor was reminded to clear the chemical spillage.	Improvement/Rectification was observed during follow-up audit session on 1 Nov 2023.
	01/11/2023	Accumulation of general refuse should be avoided. Contractor was reminded to clean it ASAP.	Improvement/Rectification was observed during follow-up audit session on 8 Nov 2023.
	01/11/2023	Provide drip tray for chemical/fuel containers.	Improvement/Rectification was observed during follow-up audit session on 8 Nov 2023.
	08/11/2023	Provide drip tray for chemical/fuel containers at Portion 11.	Improvement/Rectification was observed during follow-up audit session on 15 Nov 2023.
	29/11/2023	Provide drip tray for chemical/fuel container at visiting center.	Follow-up action is needed to be reported in the following month.
	29/11/2023	Accumulation of general refuse should be avoided at the riverbank of Portion 11.	Follow-up action is needed to be reported in the following month.
*Permit / Licences*	27/10/2023	The Environmental Permit should be displayed on site at Dills Corner site area.	Improvement/Rectification was observed during follow-up audit session on 1 Nov 2023.
Contract No.: ND/2019/03
*Air Quality*	17/11/2023	Exposed worksites and haul road should be watered as dust suppression.	Improvement/Rectification was observed during follow-up audit session on 21 Nov 2023.
	17/11/2023	Dusty stockpile should be covered with impervious sheets or sprayed with water as dust suppression.	Item remarked as 231120-R01. Follow-up action is needed to be review.
	20/11/2023		Improvement/Rectification was observed during follow-up audit session on 28 Nov 2023.
*Water Quality*	03/11/2023	Provide wheel washing facilities at every site exit.	Improvement/Rectification was observed during follow-up audit session on 10 Nov 2023.
*Water Quality*	10/11/2023	Enhance the water mitigation measure for the work area at Yin Kong Road.	Improvement/Rectification was observed during follow-up audit session on 17 Nov 2023.
Contract No.: ND/2019/04
*Water Quality*	26/10/2023	Wheel washing facilities should be provided at every site exit.	Item remarked as 231102-R01. Follow-up action is needed to be review.
	02/11/2023		Item remarked as 231109-R01. Follow-up action is needed to be review.
	09/11/2023		Item remarked as 231116-R01. Follow-up action is needed to be review.
	16/11/2023		Improvement/Rectification was observed during follow-up audit session on 20 Nov 2023.
	26/10/2023	Mitigation measures should be enhanced to avoid surface runoff discharge into Ng Tung River.	Item remarked as 231102-R03. Follow-up action is needed to be review.
	02/11/2023		Improvement/Rectification was observed during follow-up audit session on 9 Nov 2023.
	02/11/2023	Drainage system should be maintained regularly, to prevent sludge accumulation.	Improvement/Rectification was observed during follow-up audit session on 9 Nov 2023.
	02/11/2023	Leakage of untreated water was observed. Contractor was reminded to enhance the mitigation measure.	Improvement/Rectification was observed during follow-up audit session on 9 Nov 2023.
*Ecology*	09/11/2023	The dull green barrier of the 10m buffer zone near Siu Hang San Tsuen should be maintained properly and regularly.	Item remarked as 231116-R02. Follow-up action is needed to be review.
	16/11/2023		Item remarked as 231120-R02. Follow-up action is needed to be review.
	20/11/2023		Item remarked as 231130-R02. Follow-up action is needed to be review.
	30/11/2023		Follow-up action is needed to be reported in the following month.
	16/11/2023	The silt curtain next to A3-01 should be maintained properly	Item remarked as 231120-R03. Follow-up action is needed to be review.
	20/11/2023		Item remarked as 231130-R03. Follow-up action is needed to be review.
	30/11/2023		Follow-up action is needed to be reported in the following month.
*Air Quality*	20/11/2023	Stockpile of dusty material at A1-03 should be covered by impervious sheets properly.	Item remarked as 231130-R01. Follow-up action is needed to be review.
*Air Quality*	30/11/2023	Stockpile of dusty material at A1-03 and Portion K should be covered by impervious sheets properly.	Follow-up action is needed to be reported in the following month.
*Noise*	26/10/2023	Noise barrier should be maintained properly.	Improvement/Rectification was observed during follow-up audit session on 2 Nov 2023.
*Waste / Chemical Management*	26/10/2023	General refuse should be disposed of regularly and properly.	Improvement/Rectification was observed during follow-up audit session on 2 Nov 2023.
*Permit/Licences*	02/11/2023	Provide CNP for the site entrance.	Improvement/Rectification was observed during follow-up audit session on 9 Nov 2023.
Contract No.: ND/2019/05
*Waste / Chemical Management*	30/10/2023	Keep clean and tidy at Portion 3	Item remarked as 231106-R01. Follow-up action is needed to be review.
	06/11/2023		Item remarked as 231114-R01. Follow-up action is needed to be review.
	14/11/2023		Improvement/Rectification was observed during follow-up audit session on 20 Nov 2023.
	06/11/2023	General refuse should be disposed of properly and regularly.	Improvement/Rectification was observed during follow-up audit session on 14 Nov 2023.
*Air Quality*	14/11/2023	Broken NRMM should be replaced at E3-04b.	Improvement/Rectification was observed during follow-up audit session on 20 Nov 2023.
*Noise*	14/11/2023	Missing NEL (Noise Emission Label) should be provided on the air compressor.	Improvement/Rectification was observed during follow-up audit session on 20 Nov 2023.
Contract No.: ND/2019/06
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Contract No.: ND/2019/07
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Table 10.3 Summary Table for the Outstanding item(s) in the reporting month

Contract No.

Outstanding deficiencies since last reporting month

(Oct 2023)

Deficiencies recorded

in the reporting month

(Nov 2023)

Total deficiencies (including repeated deficiencies) in the reporting month

Deficiencies rectified in the reporting month

Outstanding deficiencies

need to be Follow-up in the next month

(Dec 2023)

Total

outstanding deficiencies

W/C

L&V

P/L

W/C

L&V

P/L

ND/2019/01

ND/2019/02

ND/2019/03

ND/2019/04

ND/2019/05

ND/2019/06*

ND/2019/07

Legends:

A = Air Quality

N = Construction Noise Impact

W = Water Quality

W/C = Waste / Chemical Management

CH = Cultural Heritage

L&V = Landscape & Visual

E = Ecology

P/L = Permit / Licences

* The weekly site inspection for ND/2019/06 has been terminated starting from 19/10/2023 since the termination proposal was approved by EPD on the same day.

Implementation Status of Environmental Mitigation Measures

9.6 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 EPs to mitigate environmental impacts in the reporting month are presented in Table 10.4.

Table 10.4 Photographic Records and Implementation Status of Measures

EP No.	Condition	Photographic Record	Implementation Status
EP-466/2013/A	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.	^^[^1]
EP-467/2013/A	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.	^^[^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.	^^[^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.	^^[^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.	^^[^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.	^^[^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

Remark:

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

Implementation Status of Water Quality Mitigation Measures

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

Table 10.5 Specific Water Quality Mitigation Measures for Major Construction Works in the Reporting Month

Works Contracts

Photographic Records

ND/2019/01

Hard paved exposed slope surface

Hydroseeding for slope area

ND/2019/02

Hard paved exposed haul road

Hard paved exposed slope surface

ND/2019/03

Hard paved exposed haul road

Watering the main haul road regularly.

ND/2019/04

Hard paved exposed slope surface

Deployment of silt curtain around works area in Ng Tung River

ND/2019/05

Covering dusty stockpile

Provision of sand bags around works area

ND/2019/07

Covering exposed slope surface with tarpaulin

De-silting waste water before discharge

Water quality mitigation measures for site(s) in operation phase, remaining defect works

ND/2019/06

Hard paved exposed haul road

Solid and Liquid Waste Management Status

9.8 Waste generated from Contract Nos. ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05 and ND/2019/07 included inert construction and demolition (C&D) materials and non-inert C&D wastes in the reporting month. The site of ND/2019/06 was handed over to AFCD for operation since 4 April 2022.

9.9 The amount of wastes generated by the construction works of the Contract Nos. ND/2019/01, ND/2019/02, ND/2019/03, ND/2019/04, ND/2019/05 and ND/2019/07 during the reporting month are shown in Appendix R. The site of ND/2019/06 was handed over to AFCD for operation since 4 April 2022.

9.10 The Contractors are advised to minimise 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)

9.11 Based on the findings of the 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.

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

9.13 Regarding the design, the zoning of land use in 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. LVNP will be divided 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.

9.14 The construction of LVNP started in late 2019 and was expected to be completed in 2023. During the construction period, the progress of construction and wetland enhancement works has been under observation by different stakeholders including AFCD and green groups. Close communication between AFCD and CEDD were conducted to exchange views on conservation, restoration and management of habitats as well as on the planning and design of the park. In addition, advices from green groups, Hong Kong Bird Watching Society (HKBWS) and The Conservancy Association (CA), have been taken on habitat management of Long Valley and potential effects on habitat and wildlife of each individual work conducted in Long Valley. The last meeting was held on 18 November 2022 to share the progress of LVNP with different stakeholders, including CEDD, AFCD, CA, HKBWS, Contractor, ET, IEC and farmers.

9.15 Proposals on wetland creation and restoration, dry agricultural land creation, pond creation, water treatment wetland and design of irrigation channel were submitted by the Contractor to achieve the objectives stated in HCMP and accepted by the Engineer with consent from AFCD before implementation. The Contractor would consult the stakeholders for recommendations and suggestions on mitigation measures to minimise the environmental impacts arising from construction works. The progress of works would 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.

Table 10.6 Photographic Records of Site Activities in LVNP

Continuing agricultural practice in existing farmland to maintain habitats in Long Valley

Open water Habitat

Creation of wetland with designated habitat for biodiversity conservation

Planting of paddy rice to provide foraging ground for Yellow-breasted Bunting

Enhancement of irrigation channel to provide reliable water source for farmland in Long Valley

Provision of bird island (hidden area)

Restoring of water flea pond to provide food source to water birds

Construction of storage sheds for farmers

A Himantopus himantopus was recorded

Wet agricultural land

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, 17, 21 and 29 Nov 23	1, 8, 15, 24 and 29 Nov 23	3, 10, 17, 21 and 28 Nov 23	2, 9, 16, 20 and 30 Nov 23	6, 14, 20 and 27 Nov 23	N/A	3, 10, 17 and 24 Nov 23
Joint Site Audit with representative of the Supervisor’s Representative, the Contractor and IEC	7 Nov 23	24 Nov 23	21 Nov 23	20 Nov 23	14 Nov 23	N/A	17 Nov 23

9 ENVIRONMENTAL SITE INSPECTION

Site Audits

Implementation Status of Environmental Mitigation Measures

Implementation Status of Water Quality Mitigation Measures

Solid and Liquid Waste Management Status

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