NOISE

1. CONTINUOUS NOISE MONITORING DATA (OPERATION)

Site: Lamma Power Station Extension

Measurement Location: Ash Lagoon

Measurement Parameter: 30-min Leq (07:00-23:00 hrs and 23:00-07:00 hrs on next day)

NSR: Hung Shing Ye

Date	Time	Calculated Noise Level at NSR (dB(A))
Date	Time	Max	Avg
01/12/2018	07:00-23:00	---	---
01/12/2018	23:00-07:00	---	---
02/12/2018	07:00-23:00	---	---
02/12/2018	23:00-07:00	44	43
03/12/2018	07:00-23:00	---	---
03/12/2018	23:00-07:00	44	42
04/12/2018	07:00-23:00	---	---
04/12/2018	23:00-07:00	43	40
05/12/2018	07:00-23:00	---	---
05/12/2018	23:00-07:00	47	43
06/12/2018	07:00-23:00	---	---
06/12/2018	23:00-07:00	29	29
07/12/2018	07:00-23:00	---	---
07/12/2018	23:00-07:00	---	---
08/12/2018	07:00-23:00	*	*
08/12/2018	23:00-07:00	*	*
09/12/2018	07:00-23:00	36	34
09/12/2018	23:00-07:00	49	45
10/12/2018	07:00-23:00	34	34
10/12/2018	23:00-07:00	50	45
11/12/2018	07:00-23:00	---	---
11/12/2018	23:00-07:00	37	37
12/12/2018	07:00-23:00	---	---
12/12/2018	23:00-07:00	49	46
13/12/2018	07:00-23:00	---	---
13/12/2018	23:00-07:00	34	31
14/12/2018	07:00-23:00	37	35
14/12/2018	23:00-07:00	---	---
15/12/2018	07:00-23:00	44	42
15/12/2018	23:00-07:00	21	21
16/12/2018	07:00-23:00	45	40
16/12/2018	23:00-07:00	50	47
17/12/2018	07:00-23:00	---	---
17/12/2018	23:00-07:00	48	46
18/12/2018	07:00-23:00	39	39
18/12/2018	23:00-07:00	46	44
19/12/2018	07:00-23:00	53	50
19/12/2018	23:00-07:00	42	42
20/12/2018	07:00-23:00	---	---
20/12/2018	23:00-07:00	50	46
21/12/2018	07:00-23:00	52	49
21/12/2018	23:00-07:00	45	44
22/12/2018	07:00-23:00	54	50
22/12/2018	23:00-07:00	---	---
23/12/2018	07:00-23:00	39	37
23/12/2018	23:00-07:00	50	46
24/12/2018	07:00-23:00	41	40
24/12/2018	23:00-07:00	---	---
25/12/2018	07:00-23:00	41	38
25/12/2018	23:00-07:00	---	---
26/12/2018	07:00-23:00	34	34
26/12/2018	23:00-07:00	43	41
27/12/2018	07:00-23:00	41	40
27/12/2018	23:00-07:00	46	46
28/12/2018	07:00-23:00	48	46
28/12/2018	23:00-07:00	48	45
29/12/2018	07:00-23:00	52	48
29/12/2018	23:00-07:00	43	43
30/12/2018	07:00-23:00	54	48
30/12/2018	23:00-07:00	38	33
31/12/2018	07:00-23:00	37	34
31/12/2018	23:00-07:00	31	28

Note:

a. * Unit L9 was not on load.

b. “---“ represents the measured noise monitoring data lower than the established notional background level/discarded under strong wind.

2. CONTINUOUS NOISE MONITORING DATA (CONSTRUCTION)

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)

Date	Time	Calculated Noise Level at NSR at Long Tsai Tsuen/Hung Shing Ye (dB(A))		Calculated Noise Level at NSR at the school within Tai Wan San Tsuen (dB(A))
Date	Time	Max	Avg	Max	Avg
01/12/2018	07:00-19:00	---	---	39	39
01/12/2018	19:00-23:00	---	---	48	37
01/12/2018	23:00-07:00	---	---	43	36
02/12/2018	07:00-23:00	47	38	48	33
02/12/2018	23:00-07:00	45	40	45	35
03/12/2018	07:00-19:00	---	---	39	32
03/12/2018	19:00-23:00	34	34	42	38
03/12/2018	23:00-07:00	45	35	42	36
04/12/2018	07:00-19:00	---	---	57	45
04/12/2018	19:00-23:00	23	23	41	37
04/12/2018	23:00-07:00	45	38	43	36
05/12/2018	07:00-19:00	---	---	45	40
05/12/2018	19:00-23:00	36	36	46	42
05/12/2018	23:00-07:00	45	35	45	40
06/12/2018	07:00-19:00	---	---	38	38
06/12/2018	19:00-23:00	---	---	43	39
06/12/2018	23:00-07:00	45	38	43	35
07/12/2018	07:00-19:00	---	---	42	34
07/12/2018	19:00-23:00	---	---	36	32
07/12/2018	23:00-07:00	---	---	39	33
08/12/2018	07:00-19:00	---	---	40	38
08/12/2018	19:00-23:00	22	20	42	38
08/12/2018	23:00-07:00	40	29	43	37
09/12/2018	07:00-23:00	47	35	48	36
09/12/2018	23:00-07:00	39	32	44	37
10/12/2018	07:00-19:00	---	---	38	34
10/12/2018	19:00-23:00	36	31	38	30
10/12/2018	23:00-07:00	44	34	42	36
11/12/2018	07:00-19:00	---	---	---	---
11/12/2018	19:00-23:00	---	---	---	---
11/12/2018	23:00-07:00	43	37	43	36
12/12/2018	07:00-19:00	---	---	50	39
12/12/2018	19:00-23:00	---	---	41	36
12/12/2018	23:00-07:00	42	30	43	36
13/12/2018	07:00-19:00	---	---	41	36
13/12/2018	19:00-23:00	---	---	43	39
13/12/2018	23:00-07:00	39	32	42	36
14/12/2018	07:00-19:00	---	---	44	37
14/12/2018	19:00-23:00	37	31	42	33
14/12/2018	23:00-07:00	36	36	41	34
15/12/2018	07:00-19:00	44	41	40	34
15/12/2018	19:00-23:00	---	---	40	36
15/12/2018	23:00-07:00	41	31	42	36
16/12/2018	07:00-23:00	45	34	43	34
16/12/2018	23:00-07:00	35	28	44	37
17/12/2018	07:00-19:00	---	---	45	37
17/12/2018	19:00-23:00	---	---	44	41
17/12/2018	23:00-07:00	44	32	41	36
18/12/2018	07:00-19:00	---	---	40	33
18/12/2018	19:00-23:00	39	39	46	41
18/12/2018	23:00-07:00	45	40	40	34
19/12/2018	07:00-19:00	53	53	54	39
19/12/2018	19:00-23:00	32	32	38	33
19/12/2018	23:00-07:00	45	41	43	37
20/12/2018	07:00-19:00	---	---	42	37
20/12/2018	19:00-23:00	---	---	47	36
20/12/2018	23:00-07:00	43	38	45	36
21/12/2018	07:00-19:00	52	44	37	37
21/12/2018	19:00-23:00	32	32	---	---
21/12/2018	23:00-07:00	45	40	44	38
22/12/2018	07:00-19:00	54	48	49	45
22/12/2018	19:00-23:00	23	23	42	38
22/12/2018	23:00-07:00	---	---	42	37
23/12/2018	07:00-23:00	39	36	35	31
23/12/2018	23:00-07:00	45	40	45	37
24/12/2018	07:00-19:00	---	---	34	34
24/12/2018	19:00-23:00	49	41	48	37
24/12/2018	23:00-07:00	---	---	43	39
25/12/2018	07:00-23:00	48	36	43	36
25/12/2018	23:00-07:00	---	---	44	38
26/12/2018	07:00-23:00	51	37	32	30
26/12/2018	23:00-07:00	45	39	41	34
27/12/2018	07:00-19:00	---	---	36	36
27/12/2018	19:00-23:00	44	40	40	28
27/12/2018	23:00-07:00	45	42	42	36
28/12/2018	07:00-19:00	---	---	---	---
28/12/2018	19:00-23:00	53	45	39	35
28/12/2018	23:00-07:00	45	37	38	30
29/12/2018	07:00-19:00	52	46	35	31
29/12/2018	19:00-23:00	17	17	40	32
29/12/2018	23:00-07:00	43	43	41	36
30/12/2018	07:00-23:00	58	42	44	35
30/12/2018	23:00-07:00	39	31	42	34
31/12/2018	07:00-19:00	---	---	37	34
31/12/2018	19:00-23:00	38	32	40	30
31/12/2018	23:00-07:00	37	29	42	34

Note:

a. “--- “ represents the measured noise monitoring data lower than the established notional background level/discarded under strong wind.

b. Continuous noise monitoring was also 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) with construction noise permit.