Landfill Gas Monitoring Results (Retaining Wall B)

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
Retaining Wall B 1/4/2016 8:20 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
1/4/2016 14:20 25 0 10 20 21 19 18 0.1 0.5 1.5
2/4/2016 8:20 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
2/4/2016 14:20 24 0.1 10 20 21.1 19 18 0.2 0.5 1.5
5/4/2016 8:20 Rain 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
5/4/2016 14:20 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
6/4/2016 8:20 Fine 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
6/4/2016 14:20 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
7/4/2016 8:20 Fine 22 0.1 10 20 21.1 19 18 0.2 0.5 1.5
7/4/2016 14:20 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
8/4/2016 8:20 Cloudy 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
8/4/2016 14:20 28 0.1 10 20 21 19 18 0.1 0.5 1.5
9/4/2016 8:20 Cloudy 24 0.1 10 20 21.1 19 18 0.2 0.5 1.5
9/4/2016 14:20 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
11/4/2016 8:20 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
11/4/2016 14:20 23 0.1 10 20 21.1 19 18 0.1 0.5 1.5
12/4/2016 8:20 Rain 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
12/4/2016 14:20 22 0.1 10 20 21.1 19 18 0.1 0.5 1.5
13/4/2016 8:20 Rain 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
13/4/2016 14:20 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
14/4/2016 8:20 Cloudy 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
14/4/2016 14:20 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
15/4/2016 8:20 Cloudy 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
15/4/2016 14:20 24 0.1 10 20 21.1 19 18 0.2 0.5 1.5
16/4/2016 8:20 Cloudy 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
16/4/2016 14:20 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
18/4/2016 8:20 Rain 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
18/4/2016 14:20 26 0.1 10 20 21 19 18 0.1 0.5 1.5
19/4/2016 8:20 Rain 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
19/4/2016 14:20 26 0.1 10 20 21.1 19 18 0.1 0.5 1.5
20/4/2016 8:20 Cloudy 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
20/4/2016 14:20 23 0.1 10 20 21 19 18 0.2 0.5 1.5
21/4/2016 8:20 Cloudy 22 0.1 10 20 21.1 19 18 0.2 0.5 1.5
21/4/2016 14:20 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
22/4/2016 8:20 Cloudy 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
22/4/2016 14:20 26 0.1 10 20 21.1 19 18 0.2 0.5 1.5
23/4/2016 8:20 Cloudy 22 0.1 10 20 21.1 19 18 0.1 0.5 1.5
23/4/2016 14:20 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
25/4/2016 8:20 Cloudy 24 0.1 10 20 21.1 19 18 0.2 0.5 1.5
25/4/2016 14:20 28 0.1 10 20 21 19 18 0.1 0.5 1.5
26/4/2016 8:20 Cloudy 26 0.1 10 20 21 19 18 0.2 0.5 1.5
26/4/2016 14:20 29 0.1 10 20 21.1 19 18 0.1 0.5 1.5
27/4/2016 8:20 Cloudy 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
27/4/2016 14:20 29 0.1 10 20 21.1 19 18 0.2 0.5 1.5
28/4/2016 8:20 Cloudy 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
28/4/2016 14:20 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
29/4/2016 8:20 Cloudy 23 0.1 10 20 21 19 18 0.2 0.5 1.5
29/4/2016 14:20 27 0.2 10 20 21.1 19 18 0.1 0.5 1.5
30/4/2016 8:20 Cloudy 23 0.1 10 20 21.1 19 18 0.1 0.5 1.5
30/4/2016 14:20 26 0.1 10 20 21.1 19 18 0.1 0.5 1.5

Remark: Landfill Gas Monitoring Results (Retaining Wall F)

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
Retaining Wall F 1/4/2016 8:00 Rain 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
1/4/2016 14:00 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
2/4/2016 8:00 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
2/4/2016 14:00 24 0.1 10 20 21.1 19 18 0.1 0.5 1.5
5/4/2016 8:00 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
5/4/2016 14:00 25 0.1 10 20 21 19 18 0.2 0.5 1.5
6/4/2016 8:00 Fine 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
6/4/2016 14:00 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
7/4/2016 8:00 Fine 22 0.1 10 20 21.1 19 18 0.1 0.5 1.5
7/4/2016 14:00 27 0.1 10 20 21.1 19 18 0.1 0.5 1.5
8/4/2016 8:00 Cloudy 23 0.1 10 20 21.1 19 18 0.1 0.5 1.5
8/4/2016 14:00 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
9/4/2016 8:00 Cloudy 24 0.1 10 20 21.1 19 18 0.1 0.5 1.5
9/4/2016 14:00 27 0.1 10 20 21.1 19 18 0.2 0.5 1.5
11/4/2016 8:00 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
11/4/2016 14:00 23 0.1 10 20 21.1 19 18 0.1 0.5 1.5
12/4/2016 8:00 Rain 20 0.1 10 20 21.1 19 18 0.1 0.5 1.5
12/4/2016 14:00 22 0.1 10 20 21.1 19 18 0.2 0.5 1.5
13/4/2016 8:00 Rain 21 0.1 10 20 21.1 19 18 0.2 0.5 1.5
13/4/2016 14:00 25 0.1 10 20 21.1 19 18 0.1 0.5 1.5
14/4/2016 8:00 Cloudy 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
14/4/2016 14:00 25 0.1 10 20 21.1 19 18 0.2 0.5 1.5
15/4/2016 8:00 Cloudy 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
15/4/2016 14:00 24 0.1 10 20 21.1 19 18 0.1 0.5 1.5
16/4/2016 8:00 Cloudy 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
16/4/2016 14:00 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
18/4/2016 8:00 Rain 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
18/4/2016 14:00 26 0.1 10 20 21.1 19 18 0.1 0.5 1.5
19/4/2016 8:00 Rain 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
19/4/2016 14:00 26 0.1 10 20 21.1 19 18 0.1 0.5 1.5
20/4/2016 8:00 Cloudy 20 0.1 10 20 21.1 19 18 0.2 0.5 1.5
20/4/2016 14:00 23 0.1 10 20 21.1 19 18 0.1 0.5 1.5
21/4/2016 8:00 Cloudy 22 0.1 10 20 21.1 19 18 0.1 0.5 1.5
21/4/2016 14:00 28 0.1 10 20 21.1 19 18 0.2 0.5 1.5
22/4/2016 8:00 Cloudy 21 0.1 10 20 21.1 19 18 0.1 0.5 1.5
22/4/2016 14:00 26 0.1 10 20 21.1 19 18 0.2 0.5 1.5
23/4/2016 8:00 Cloudy 22 0.1 10 20 21.1 19 18 0.1 0.5 1.5
23/4/2016 14:00 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
25/4/2016 8:00 Cloudy 24 0.1 10 20 21.1 19 18 0.2 0.5 1.5
25/4/2016 14:00 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
26/4/2016 8:00 Cloudy 26 0.1 10 20 21.1 19 18 0.1 0.5 1.5
26/4/2016 14:00 29 0.1 10 20 21.1 19 18 0.2 0.5 1.5
27/4/2016 8:00 Cloudy 25 0.1 10 20 21.1 19 18 0.2 0.5 1.5
27/4/2016 14:00 29 0.1 10 20 21.1 19 18 0.1 0.5 1.5
28/4/2016 8:00 Cloudy 25 0.1 10 20 21 19 18 0.2 0.5 1.5
28/4/2016 14:00 28 0.1 10 20 21.1 19 18 0.1 0.5 1.5
29/4/2016 8:00 Cloudy 23 0.1 10 20 21.1 19 18 0.1 0.5 1.5
29/4/2016 14:00 27 0.1 10 20 21 19 18 0.1 0.5 1.5
30/4/2016 8:00 Cloudy 23 0.1 10 20 21.1 19 18 0.2 0.5 1.5
30/4/2016 14:00 26 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%

30-Apr-16

30-Apr-16

30-Apr-16

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

AUES

18th Monthly Environmental Monitoring and Audit (EM&A) Report –April 2016

Measurement Result Action Level Limit Level

Annotation:During 1 January to 30 April2016, m ajor construction activity wasconstructionof retaining wall F and the specified worksincluded excavation, rock breaking, 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\2016\April 2016\R0190v2.docx

25-Apr-16

20-Apr-16

15-Apr-16

10-Apr-16

Measurement Result Action Level Limit Level

22.0

21.0

20.0

19.0

18.0

17.0

16.0

25-Apr-16

25-Apr-16

20-Apr-16

15-Apr-16

10-Apr-1620-Apr-16

15-Apr-16

10-Apr-165-Apr-16

5-Apr-16

5-Apr-16

31-Mar-16

31-Mar-16

31-Mar-16

26-Mar-16

21-Mar-16

16-Mar-16

11-Mar-16

6-Mar-1626-Mar-16

21-Mar-16

16-Mar-16

11-Mar-1626-Mar-16

21-Mar-16

16-Mar-16

11-Mar-16

6-Mar-16

6-Mar-16

Measurement Result Action Level Limit Level

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

1-Mar-16

1-Mar-16

1-Mar-16

25-Feb-16

25-Feb-16

25-Feb-16

20-Feb-16

15-Feb-16

10-Feb-16

5-Feb-16

31-Jan-16

26-Jan-16

21-Jan-1620-Feb-16

15-Feb-16

10-Feb-16

5-Feb-16

31-Jan-16

26-Jan-1620-Feb-16

15-Feb-16

10-Feb-16

5-Feb-16

31-Jan-16

26-Jan-16

21-Jan-16

21-Jan-16

16-Jan-16

16-Jan-16

16-Jan-16

11-Jan-16

11-Jan-16

11-Jan-16

6-Jan-16

6-Jan-16

6-Jan-16

1-Jan-16

1-Jan-16

25 20 15 10 5 0

Unit Concentrattion (%)

Unit Concentrattion (%)

Unit Concentrattion (%)

30-Apr-16

30-Apr-16

30-Apr-16

25-Apr-16

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

AUES

18th Monthly Environmental Monitoring and Audit (EM&A) Report –April 2016

Measurement Result Action Level Limit Level

Annotation:During 1 January to 30 April 2016, m ajor construction activity wasconstructionof retaining wall B and the specified worksincluded excavation, rock breaking, 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\2016\April 2016\R0190v2.docx

25-Apr-16

25-Apr-16

20-Apr-16

15-Apr-16

10-Apr-1620-Apr-16

15-Apr-16

10-Apr-16

5-Apr-16

Measurement Result Action Level Limit Level

22 21 20 19 18 17 16

20-Apr-16

15-Apr-16

10-Apr-16

5-Apr-16

5-Apr-16

31-Mar-16

31-Mar-16

31-Mar-16

26-Mar-16

26-Mar-16

26-Mar-16

21-Mar-16

21-Mar-16

16-Mar-16

11-Mar-1621-Mar-16

16-Mar-16

11-Mar-1616-Mar-16

11-Mar-16

6-Mar-16

6-Mar-16

1-Mar-16

1-Mar-16

1-Mar-16

25-Feb-16

6-Mar-16

25-Feb-16

25-Feb-16

20-Feb-16

15-Feb-16

10-Feb-16

5-Feb-16

31-Jan-16

26-Jan-1620-Feb-16

15-Feb-16

10-Feb-16

5-Feb-16

31-Jan-16

26-Jan-1620-Feb-16

15-Feb-16

10-Feb-16

5-Feb-16

31-Jan-16

26-Jan-16

21-Jan-16

21-Jan-16

16-Jan-16

11-Jan-16

16-Jan-16

11-Jan-16

6-Jan-16

11-Jan-1621-Jan-16

16-Jan-16

6-Jan-16

1-Jan-16

Measurement Result Action Level Limit Level

1.6

1.4

1.2 1

0.8

0.6

0.4

0.2 0

6-Jan-16

1-Jan-16

25 20 15 10 5 0

Unit Concentrattion (%)

Unit Concentrattion (%)

Unit Concentrattion (%)