Contract No. HY/2013/12 Tuen Mun -Chek Lap Kok Link -Northern Connection Toll Plaza and Associated Works

AUES

29th Monthly Environmental Monitoring and Audit (EM&A) Report March 2017

Annotation: During 1 to 31 March 2017, major construction activity at TD1 and the specified works included excavation, stitching, blinding, formworking, steel-fixing and concreting. The weather condition varied from sunny to rainy. The monitoring data was provided by the Contractor followed to their QA/QC control.

Z:\Jobs\2014\TCS00715(HY-2013_12)\600\Monthly EM&A Report\2017\March 2017\R0282v2.docx

Contract No. HY/2013/12 Tuen Mun -Chek Lap Kok Link -Northern Connection Toll Plaza and Associated Works

AUES

29th Monthly Environmental Monitoring and Audit (EM&A) Report March 2017

Annotation: During 1 to 31 March 2017, major construction activity at Lung Mun Road and the specified works included excavation, blinding, formworking, steel-fixing and concreting. The weather condition varied from sunny to rainy. The monitoring data was provided by the Contractor followed to their QA/QC control.

Z:\Jobs\2014\TCS00715(HY-2013_12)\600\Monthly EM&A Report\2017\March 2017\R0282v2.docx

Landfill Gas Monitoring Results (TD1)

Monitoring Location Date Time Weather Temperature (°C) Methane (%) Oxygen (%) Carbon Dioxide (%)
Measurement Result Action Level Limit Level Measurement Result Action Level Limit Level Measurement Result Action Level Limit Level
TD1 1/3/2017 8:00 Fine 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
1/3/2017 14:00 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
2/3/2017 8:00 Fine 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
2/3/2017 14:00 24 0.1 10 20 21.1 19 18 0.1 0.5 1.5
3/3/2017 8:00 Fine 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
3/3/2017 14:00 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
4/3/2017 8:00 Fine 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
4/3/2017 14:00 22 0.1 10 20 21.1 19 18 0.1 0.5 1.5
6/3/2017 8:00 Cloudy 18 0.1 10 20 21.1 19 18 0.2 0.5 1.5
6/3/2017 14:00 24 0.1 10 20 21 19 18 0.2 0.5 1.5
7/3/2017 8:00 Cloudy 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
7/3/2017 14:00 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
8/3/2017 8:00 Rain 15 0.1 10 20 21.1 19 18 0.2 0.5 1.5
8/3/2017 14:00 17 0.1 10 20 21.1 19 18 0.1 0.5 1.5
9/3/2017 8:00 Rain 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
9/3/2017 14:00 20 0.1 10 20 21 19 18 0.1 0.5 1.5
10/3/2017 8:00 Rain 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
10/3/2017 14:00 19 0.1 10 20 21 19 18 0.2 0.5 1.5
11/3/2017 8:00 Rain 16 0.1 10 20 21.1 19 18 0.2 0.5 1.5
11/3/2017 14:00 19 0.1 10 20 21.1 19 18 0.2 0.5 1.5
13/3/2017 8:00 Sunny 19 0.1 10 20 21.1 19 18 0.2 0.5 1.5
13/3/2017 14:00 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
14/3/2017 8:00 Rain 17 0.1 10 20 21.1 19 18 0.1 0.5 1.5
14/3/2017 14:00 22 0.1 10 20 21 19 18 0.1 0.5 1.5
15/3/2017 8:00 Rain 16 0.1 10 20 21.1 19 18 0.2 0.5 1.5
15/3/2017 14:00 18 0.1 10 20 21.1 19 18 0.1 0.5 1.5
16/3/2017 8:00 Cloudy 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
16/3/2017 14:00 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
17/3/2017 8:00 Cloudy 17 0.1 10 20 21.1 19 18 0.1 0.5 1.5
17/3/2017 14:00 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
18/3/2017 8:00 Hazy 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
18/3/2017 14:00 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
20/3/2017 8:00 Cloudy 19 0.1 10 20 21.1 19 18 0.2 0.5 1.5
20/3/2017 14:00 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
21/3/2017 8:00 Cloudy 19 0.1 10 20 21.1 19 18 0.2 0.5 1.5
21/3/2017 14:00 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
22/3/2017 8:00 Cloudy 18 0.1 10 20 21.1 19 18 0.1 0.5 1.5
22/3/2017 14:00 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
23/3/2017 8:00 Hazy 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
23/3/2017 14:00 25 0.1 10 20 21 19 18 0.1 0.5 1.5
24/3/2017 8:00 Cloudy 19 0.1 10 20 21.1 19 18 0.2 0.5 1.5
24/3/2017 14:00 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
25/3/2017 8:00 Cloudy 16 0.1 10 20 21.1 19 18 0.2 0.5 1.5
25/3/2017 14:00 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
27/3/2017 8:00 Hazy 16 0.1 10 20 21.1 19 18 0.2 0.5 1.5
27/3/2017 14:00 21 0.1 10 20 21 19 18 0.2 0.5 1.5
28/3/2017 8:00 Cloudy 18 0.1 10 20 21.1 19 18 0.2 0.5 1.5
28/3/2017 14:00 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
29/3/2017 8:00 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
29/3/2017 14:00 23 0.1 10 20 21 19 18 0.1 0.5 1.5
30/3/2017 8:00 Cloudy 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
30/3/2017 14:00 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
31/3/2017 8:00 Rain 19 0.1 10 20 21 19 18 0.1 0.5 1.5
31/3/2017 14:00 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5

Remark: Landfill Gas Monitoring Results (Lung Mun Road)

Parameter Criteria Measurement
Oxygen Action Level < 19%
Limit Level < 18%
Methane Action Level > 10% LEL (> 0.5% v/v)
Limit Level > 20% LEL (>1% v/v)
Carbon Action Level > 0.5%
Dioxide Limit Level > 1.5%
Monitoring Location Date Time Weather Temperature (°C) Methane (%) Oxygen (%) Carbon Dioxide (%)
Measurement Result Action Level Limit Level Measurement Result Action Level Limit Level Measurement Result Action Level Limit Level
Lung Mun Road 1/3/2017 8:20 Fine 16 0.1 10 20 21 19 18 0.1 0.5 1.5
1/3/2017 14:20 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
2/3/2017 8:20 Fine 17 0.1 10 20 21.1 19 18 0.1 0.5 1.5
2/3/2017 14:20 24 0.1 10 20 21.1 19 18 0.1 0.5 1.5
3/3/2017 8:20 Fine 16 0.1 10 20 21.1 19 18 0.2 0.5 1.5
3/3/2017 14:20 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
4/3/2017 8:20 Fine 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
4/3/2017 14:20 22 0.1 10 20 21.1 19 18 0.1 0.5 1.5
6/3/2017 8:20 Cloudy 18 0.1 10 20 21 19 18 0.2 0.5 1.5
6/3/2017 14:20 24 0.1 10 20 21 19 18 0.2 0.5 1.5
7/3/2017 8:20 Cloudy 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
7/3/2017 14:20 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
8/3/2017 8:20 Rain 15 0.1 10 20 21.1 19 18 0.1 0.5 1.5
8/3/2017 14:20 17 0.1 10 20 21.1 19 18 0.1 0.5 1.5
9/3/2017 8:20 Rain 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
9/3/2017 14:20 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
10/3/2017 8:20 Rain 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
10/3/2017 14:20 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
11/3/2017 8:20 Rain 16 0.1 10 20 21.1 19 18 0.2 0.5 1.5
11/3/2017 14:20 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
13/3/2017 8:20 Sunny 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
13/3/2017 14:20 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
14/3/2017 8:20 Rain 17 0.1 10 20 21.1 19 18 0.1 0.5 1.5
14/3/2017 14:20 22 0.1 10 20 21 19 18 0.2 0.5 1.5
15/3/2017 8:20 Rain 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
15/3/2017 14:20 18 0.1 10 20 21 19 18 0.2 0.5 1.5
16/3/2017 8:20 Cloudy 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
16/3/2017 14:20 19 0.1 10 20 21.1 19 18 0.2 0.5 1.5
17/3/2017 8:20 Cloudy 17 0.1 10 20 21 19 18 0.2 0.5 1.5
17/3/2017 14:20 21 0.1 10 20 21 19 18 0.1 0.5 1.5
18/3/2017 8:20 Hazy 17 0.1 10 20 21.1 19 18 0.2 0.5 1.5
18/3/2017 14:20 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
20/3/2017 8:20 Cloudy 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
20/3/2017 14:20 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
21/3/2017 8:20 Cloudy 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
21/3/2017 14:20 27 0.1 10 20 21 19 18 0.1 0.5 1.5
22/3/2017 8:20 Cloudy 18 0.1 10 20 21.1 19 18 0.2 0.5 1.5
22/3/2017 14:20 20 0.1 10 20 21 19 18 0.1 0.5 1.5
23/3/2017 8:20 Hazy 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
23/3/2017 14:20 25 0.1 10 20 21 19 18 0.2 0.5 1.5
24/3/2017 8:20 Cloudy 19 0.1 10 20 21.1 19 18 0.2 0.5 1.5
24/3/2017 14:20 23 0.1 10 20 21 19 18 0.1 0.5 1.5
25/3/2017 8:20 Cloudy 16 0.1 10 20 21 19 18 0.2 0.5 1.5
25/3/2017 14:20 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
27/3/2017 8:20 Hazy 16 0.1 10 20 21.1 19 18 0.1 0.5 1.5
27/3/2017 14:20 21 0.1 10 20 21 19 18 0.2 0.5 1.5
28/3/2017 8:20 Cloudy 18 0.1 10 20 21.1 19 18 0.2 0.5 1.5
28/3/2017 14:20 25 0.1 10 20 21.1 19 18 0.2 0.5 1.5
29/3/2017 8:20 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
29/3/2017 14:20 23 0.1 10 20 21 19 18 0.1 0.5 1.5
30/3/2017 8:20 Cloudy 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
30/3/2017 14:20 23 0.1 10 20 21.1 19 18 0.1 0.5 1.5
31/3/2017 8:20 Rain 19 0.1 10 20 21.1 19 18 0.1 0.5 1.5
31/3/2017 14:20 17 0.1 10 20 21.1 19 18 0.1 0.5 1.5

Remark:

Parameter Criteria Measurement
Oxygen Action Level < 19%
Limit Level < 18%
Methane Action Level > 10% LEL (> 0.5% v/v)
Limit Level > 20% LEL (>1% v/v)
Carbon Action Level > 0.5%
Dioxide Limit Level > 1.5%