Table 5.1 Observations and Recommendations of Site Audit

Parameters	Date	Observations and Recommendations	Follow-up
Air Quality	1 June 217	Regular watering to the site working area shall be provided to suppress dust emission. (Zone 1)	The item was rectified by the Contractor and inspected on 8 June 2017.
	15 June 2017	Open stockpiles of excavated material shall be covered properly with impervious sheeting to avoid dust emission. (Zone 1)	The item was rectified by the Contractor and inspected on 23 June 2017
	6 July 2017	Stockpile of excavated materials shall be covered with impervious sheeting. (Zone 4)	The item was rectified by the Contractor and inspected on 13 July 2017
	13 July 2017	Spent bags of cement shall be stored properly. (Zone 3)	The item was rectified by the Contractor and inspected on 19 July 2017.
	24 August 2017	Contractor was reminded to cover stockpiles with impervious sheetings properly. (Portion I)	The item was rectified by the Contractor and inspected on 31 August 2017.
	31 August 2017	Open stockpiling of C&D materials shall be covered properly. Impermeable sheeting shall be provided. (Zone 1)	The item was rectified by the Contractor and inspected on 7 September 2017.
Noise	27 July 2017	Contractor was reminded to close the door of the air compressor to reduce noise emission. (Zone 4)	The item was rectified by the Contractor and inspected on 3 August 2017.
	31 August 2017	Appropriate noise absorption material shall be provided to the operating breaker. (Zone 4)	The item was rectified by the Contractor and inspected on 7 September 2017.
Water Quality	1 June 2017	The mud at mud tank shall be removed to prevent overflow of storm water at the mud tank. (Zone 1)	The item was rectified by the Contractor and inspected on 8 June 2017.
	6 July 2017	Seepage of muddy water shall be prevented. (Portion I)	The item was rectified by the Contractor and inspected on 13 July 2017.
	3 August 2017	Waste water treatment system shall be improved to prevent the accumulation of muddy water and water seepage at the low lying area at Portion I. Contractor was recommended to separate the discharge point and the desilting pond, seal the concrete blocks, and provide additional pumps. (Portion I)	The item was rectified by the Contractor and inspected on 10 August 2017.
Chemical and Waste Management	8 June 2017	Chemical containers shall be stored on drip tray. (Zone 1)	The item was rectified by the Contractor and inspected on 15 June 2017.
	8 June 2017	General refuse shall be stored properly and removed regularly. (Zone 2)	The item was rectified by the Contractor and inspected on 15 June 2017.
	15 June 2017	General refuse, spent chemical containers and used bags of cement shall be stored properly. (Zone 2)	The item was rectified by the Contractor and inspected on 23 June 2017.
	6 July 2017	Chemical containers shall be stored on drip tray. (Zone 2)	The item was rectified by the Contractor and inspected on 13 July 2017.
	13 July 2017	Chemical containers shall be stored on drip tray. (Zone 4) Chemical containers shall be stored in good conditions. (Zone 1)	The item was rectified by the Contractor and inspected on 19 July 2017.
	10 August 2017	Cement residue was found in the public haul road. Impermeable sheeting shall be provided when loading the cement. (Zone 2)	The item was rectified by the Contractor and inspected on 17 August 2017.
Land Contamination	NA
Landscape and Visual Impact	8 June 2017	Debris and concrete shall be properly covered. (Zone 4)		The item was rectified by the Contractor and inspected on 15 June 2017.
	15 June 2017	Excavated materials shall be properly covered by impervious sheeting. (Zone 4)		The item was rectified by the Contractor and inspected on 23 June 2017.
	6 July 2017	Stockpile of excavated materials shall be covered with impervious sheeting. (Zone 4)		The item was rectified by the Contractor and inspected on 13 July 2017.
	3 August 2017	Decorative hoardings shall be provided along Shing Cheong Road.		The item was rectified by the Contractor and inspected on 17 August 2017.
	24 August 2017	Contractor was reminded to cover stockpiles with impervious sheetings properly. (Portion I)		The item was rectified by the Contractor and inspected on 31 August 2017.
	31 August 2017	Open stockpiling of C&D materials shall be covered properly. Impermeable sheeting shall be provided. (Zone 1)		The item was rectified by the Contractor and inspected on 7 September 2017.
General	23 June 2017	Stagnant water shall be removed. (Portion I and Portion O)		The item was rectified by the Contractor and inspected on 29 June 2017.
	19 July 2017	Stagnant water was observed at Portion I and Zone 1. Contractor shall remove stagnant water frequently. (Portion I and Zone 1)		The item was rectified by the Contractor and inspected on 27 July 2017.
	17 August 2017	Contractor was reminded that the low-lying area at Portion I shall be kept clear of silt, dusty or muddy materials. (Portion I)		The item was rectified by the Contractor and inspected on 24 August 2017.