Table 10.2 Observations and Recommendations during Site Audits

Parameters	Date	Observations and Recommendations	Follow-up
Contract No.: ND/2019/01
Water Quality	18/09/2023	Sandbag barriers along the site boundary at Portion 2 should be enhanced to prevent surface runoff discharge.	Improvement/Rectification was observed during follow-up audit session on 26 Sep 2023.
	18/09/2023	Temporary ditches should be provided for runoff discharge into appropriate watercourse.	Item remarked as 230926-R02. Follow-up action is needed to be review.
	26/09/2023	Water pump failure causing muddy water overflow within the site boundary near Pak Shek Au should be fixed immediately.	Follow-up action is needed to be reported in the following month.
	26/09/2023	Barricade with geotextile should be installed surrounding the channels at RC3, enhance the adequacy of water pump usage, increase the capacity of temporary sedimentation pond, clear the U channel and ensure the sandbag barrier is fully enclosed at Portion 1B and 1C.	Follow-up action is needed to be reported in the following month.
Air Quality	26/09/2023	The Contractor was reminded to provide sufficient water-spraying to enhance dust suppression measures.	Follow-up action is needed to be reported in the following month.
Contract No.: ND/2019/02
Water Quality	30/08/2023	Exposed slope surfaces along the riverside should be covered by tarpaulin sheets securely and properly as soon as possible before raining/typhoon.	Improvement/Rectification was observed during follow-up audit session on 6 Sep 2023.
	27/09/2023	Drainage system should be maintained properly along the riverside and VC, mitigation measures including fully enclosed sand bag barrier should be implemented.	Follow-up action is needed to be reported in the following month.
	27/09/2023	Exposed slope surface should be covered by tarpaulin sheets properly.	Follow-up action is needed to be reported in the following month.
Ecology	13/09/2023	The silt curtain under the bridge should be maintained properly and regularly.	Item remarked as 230922-R03. Follow-up action is needed to be review.
	22/09/2023		Item remarked as 230927-R03. Follow-up action is needed to be review.
	27/09/2023		Follow-up action is needed to be reported in the following month.
Landscape and Visual	30/08/2023	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 230906-R01. Follow-up action is needed to be review.
	06/09/2023		Item remarked as 230913-R01. Follow-up action is needed to be review.
	13/09/2023		Item remarked as 230922-R01. Follow-up action is needed to be review.
	22/09/2023		Item remarked as 230927-R01. Follow-up action is needed to be review.
	27/09/2023		Follow-up action is needed to be reported in the following month.
	30/08/2023	Tree protection zone should be maintained properly and regularly. / Construction works of the VC exceeding site boundary causing damage to trees within 2m from site boundaries.	Item remarked as 230906-R02. Follow-up action is needed to be review.
	06/09/2023		Item remarked as 230913-R02. Follow-up action is needed to be review.
	13/09/2023		Item remarked as 230922-R02. Follow-up action is needed to be review.
	22/09/2023		Item remarked as 230927-R02. Follow-up action is needed to be review.
	27/09/2023		Follow-up action is needed to be reported in the following month.
Contract No.: ND/2019/03
Air Quality	31/08/2023	Dusty stockpiles should be covered with tarpaulin sheets.	Item remarked as 230914-R01. Follow-up action is needed to be review.
	14/09/2023		Item remarked as 230919-R01. Follow-up action is needed to be review.
	19/09/2023		Item remarked as 230929-R01. Follow-up action is needed to be review.
	29/09/2023		Follow-up action is needed to be reported in the following month.
Water Quality	31/08/2023	Provide adequate wheel-washing facilities for each vehicle exits.	Item remarked as 230914-O01. Follow-up action is needed to be review.
	14/09/2023		Item remarked as 230919-O01. Follow-up action is needed to be review.
	19/09/2023		Item remarked as 230929-O01. Follow-up action is needed to be review.
	29/09/2023		Follow-up action is needed to be reported in the following month.
	31/08/2023	Provide sand bags to prevent muddy water discharge.	Item remarked as 230914-R02. Follow-up action is needed to be review.
	14/09/2023		Item remarked as 230919-R02. Follow-up action is needed to be review.
	19/09/2023		Item remarked as 230929-R02. Follow-up action is needed to be review.
	29/09/2023		Follow-up action is needed to be reported in the following month.
Contract No.: ND/2019/04
Water Quality	31/08/2023	All vehicles should be cleaned of earth, mud and debris before leaving the site.	Item remarked as 230907-R01. Follow-up action is needed to be review.
	07/09/2023		Item remarked as 230913-R01. Follow-up action is needed to be review.
	13/09/2023		Item remarked as 230921-R01. Follow-up action is needed to be review.
	21/09/2023		Item remarked as 230928-R01. Follow-up action is needed to be review.
	28/09/2023		Follow-up action is needed to be reported in the following month.
	31/08/2023	Stockpile of dusty materials should be covered properly and securely during rainstorm.	Item remarked as 230907-R02. Follow-up action is needed to be review.
	07/09/2023		Improvement/Rectification was observed during follow-up audit session on 13 Sep 2023.
	07/09/2023	Earth bunds or sand bag barriers around the construction site next to Ma Wut River should be provided to prevent surface runoff through the site boundary.	Item remarked as 230913-O01. Follow-up action is needed to be review.
	13/09/2023		Improvement/Rectification was observed during follow-up audit session on 21 Sep 2023.
	28/09/2023	Water quality mitigation measures along Ng Tung River should be provided, e.g. sand bag barrier.	Follow-up action is needed to be reported in the following month.
Ecology	13/09/2023	The silt curtain deployed around platform F02 should be maintained properly.	Improvement/Rectification was observed during follow-up audit session on 21 Sep 2023.
	28/09/2023	Silt curtain at Bridge F should be fully enclosed.	Follow-up action is needed to be reported in the following month.
Air Quality	21/09/2023	Stockpile of dusty materials should be covered by tarpaulin sheets.	Improvement/Rectification was observed during follow-up audit session on 28 Sep 2023.
	28/09/2023	Sufficient water-spraying should be provided regularly.	Follow-up action is needed to be reported in the following month.
Noise	28/09/2023	Noise barrier should be maintained properly.	Follow-up action is needed to be reported in the following month.
Contract No.: ND/2019/05
Water Quality	28/08/2023	The design of the on-site drainage should be enhanced to prevent runoff going through site surface at On Lok Garden.	Improvement/Rectification was observed during follow-up audit session on 04 Sep 2023.
	28/08/2023	Temporary ditches should be provided for vehicle washing spaces to avoid wastewater discharge into inappropriate watercourse.	Improvement/Rectification was observed during follow-up audit session on 04 Sep 2023.
	28/08/2023	Blue hose attached to water pump should be kept away from the riverside.	Improvement/Rectification was observed during follow-up audit session on 04 Sep 2023.
	26/09/2023	Blue hose attached to water pump should be kept away from the riverside.	Follow-up action is needed to be reported in the following month.
Air Quality	18/09/2023	Provide maintenance for excavator to avoid black smoke emission.	Improvement/Rectification was observed during follow-up audit session on 26 Sep 2023.
Contract No.: ND/2019/06
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Contract No.: ND/2019/07
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