Appendix E                Continuous Noise Monitoring Results for April 2017

 

 

Site:                  Lamma Power Station Extension Construction

Measurement Location:  Ash Lagoon and Ching Lam

Measurement Parameter: 30-min Leq (07:00-19:00 hrs on normal weekdays)

                       5-min Leq (07:00-23:00 hrs on holidays and

                       19:00-23:00 hrs on all other days, and 23:00-

                       07:00 hrs of next day)

Noise Equipment Used:  B&K 2250 sound level meters and B&K 4231 sound

                       level calibrator

Last Calibration Date: B&K 2250 sound level meters - 09/11/2015 (Ching Lam)

                                                     19/08/2016 (Ash Lagoon)

                       B&K 4231 calibrator         - 03/04/2017

 

 

Date

Time

Calculated

Noise

Level at

NSR at Long

Tsai

Tsuen/Hung

Shing Ye

(dB(A))

Limit

Noise

Level

(dB(A))

Calculated

Noise

Level at

NSR at the

school

within Tai

Wan San

Tsuen

(dB(A))

Limit

Noise

Level

(dB(A))

Max

Avg

Max

Avg

01/04/2017

07:00-19:00

---

---

75

---

---

70

01/04/2017

19:00-23:00

---

---

60

26

26

60

01/04/2017

23:00-07:00

---

---

45

---

---

45

02/04/2017

07:00-23:00

---

---

60

---

---

60

02/04/2017

23:00-07:00

---

---

45

25

20

45

03/04/2017

07:00-19:00

---

---

75

---

---

70

03/04/2017

19:00-23:00

---

---

60

31

31

60

03/04/2017

23:00-07:00

---

---

45

22

22

45

04/04/2017

07:00-23:00

---

---

60

19

19

60

04/04/2017

23:00-07:00

---

---

45

23

21

45

05/04/2017

07:00-19:00

---

---

75

---

---

70

05/04/2017

19:00-23:00

---

---

60

---

---

60

05/04/2017

23:00-07:00

---

---

45

15

15

45

06/04/2017

07:00-19:00

---

---

75

---

---

70

06/04/2017

19:00-23:00

---

---

60

---

---

60

06/04/2017

23:00-07:00

---

---

45

29

26

45

07/04/2017

07:00-19:00

---

---

75

---

---

75

07/04/2017

19:00-23:00

---

---

60

22

22

60

07/04/2017

23:00-07:00

---

---

45

---

---

45

08/04/2017

07:00-19:00

---

---

75

---

---

70

08/04/2017

19:00-23:00

---

---

60

---

---

60

08/04/2017

23:00-07:00

---

---

45

32

32

45

09/04/2017

07:00-23:00

---

---

60

32

32

60

09/04/2017

23:00-07:00

---

---

45

35

35

45

10/04/2017

07:00-19:00

---

---

75

---

---

70

10/04/2017

19:00-23:00

---

---

60

26

23

60

10/04/2017

23:00-07:00

---

---

45

---

---

45

11/04/2017

07:00-19:00

---

---

75

---

---

70

11/04/2017

19:00-23:00

---

---

60

---

---

60

11/04/2017

23:00-07:00

---

---

45

---

---

45

12/04/2017

07:00-19:00

---

---

75

---

---

70

12/04/2017

19:00-23:00

---

---

60

---

---

60

12/04/2017

23:00-07:00

---

---

45

27

27

45

13/04/2017

07:00-19:00

---

---

75

---

---

70

13/04/2017

19:00-23:00

---

---

60

15

15

60

13/04/2017

23:00-07:00

---

---

45

32

27

45

14/04/2017

07:00-23:00

---

---

60

---

---

60

14/04/2017

23:00-07:00

---

---

45

31

27

45

15/04/2017

07:00-23:00

---

---

60

---

---

60

15/04/2017

23:00-07:00

---

---

45

30

27

45

16/04/2017

07:00-23:00

---

---

60

36

26

60

16/04/2017

23:00-07:00

---

---

45

34

32

45

17/04/2017

07:00-23:00

---

---

60

39

34

60

17/04/2017

23:00-07:00

39

26

45

30

25

45

18/04/2017

07:00-19:00

54

46

75

35

28

70

18/04/2017

19:00-23:00

34

33

60

29

28

60

18/04/2017

23:00-07:00

---

---

45

26

23

45

19/04/2017

07:00-19:00

50

42

75

28

28

70

19/04/2017

19:00-23:00

33

33

60

28

28

60

19/04/2017

23:00-07:00

34

28

45

29

23

45

20/04/2017

07:00-19:00

47

45

75

---

---

70

20/04/2017

19:00-23:00

---

---

60

---

---

60

20/04/2017

23:00-07:00

33

31

45

28

26

45

21/04/2017

07:00-19:00

52

47

75

48

39

70

21/04/2017

19:00-23:00

29

27

60

---

---

60

21/04/2017

23:00-07:00

45

26

45

39

21

45

22/04/2017

07:00-19:00

---

---

75

---

---

70

22/04/2017

19:00-23:00

17

17

60

---

---

60

22/04/2017

23:00-07:00

45

27

45

30

22

45

23/04/2017

07:00-23:00

34

28

60

32

25

60

23/04/2017

23:00-07:00

41

38

45

36

33

45

24/04/2017

07:00-19:00

53

43

75

39

35

70

24/04/2017

19:00-23:00

39

33

60

34

28

60

24/04/2017

23:00-07:00

39

29

45

34

25

45

25/04/2017

07:00-19:00

50

48

75

40

39

70

25/04/2017

19:00-23:00

19

19

60

42

35

60

25/04/2017

23:00-07:00

43

29

45

37

24

45

26/04/2017

07:00-19:00

42

41

75

37

36

70

26/04/2017

19:00-23:00

37

36

60

39

31

60

26/04/2017

23:00-07:00

---

---

45

39

27

45

27/04/2017

07:00-19:00

55

40

75

32

32

70

27/04/2017

19:00-23:00

37

32

60

31

27

60

27/04/2017

23:00-07:00

40

31

45

38

26

45

28/04/2017

07:00-19:00

54

50

75

29

29

70

28/04/2017

19:00-23:00

43

39

60

37

33

60

28/04/2017

23:00-07:00

41

37

45

36

32

45

29/04/2017

07:00-19:00

54

43

75

36

36

70

29/04/2017

19:00-23:00

41

33

60

37

27

60

29/04/2017

23:00-07:00

---

---

45

31

23

45

30/04/2017

07:00-23:00

---

---

60

19

19

60

30/04/2017

23:00-07:00

---

---

45

24

22

45

 

 

Note:

a.   ---“ represents the measured noise monitoring data lower than the established notional background level, particularly for the period of 01/04/2017 07:00 – 17/04/2017 23:00.  The Ash Lagoon noise monitoring station was in normal operation but there were no data of calculated noise level at NSR at Long Tsai Tsuen/Hung Shing Ye.

 

b.   Continuous noise monitoring was carried out at holidays & evening-time (07:00-23:00 hrs on holidays and 19:00-23:00 hrs on all other days) and night-time (23:00-07:00 hrs of next day) under construction noise permit.