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))
		Max	Avg
01/06/2026	07:00-23:00	47	43
01/06/2026	23:00-07:00	50	50
02/06/2026	07:00-23:00	45	44
02/06/2026	23:00-07:00	49	48
03/06/2026	07:00-23:00	46	46
03/06/2026	23:00-07:00	---	---
04/06/2026	07:00-23:00	48	45
04/06/2026	23:00-07:00	45	45
05/06/2026	07:00-23:00	51	46
05/06/2026	23:00-07:00	49	46
06/06/2026	07:00-23:00	58	54
06/06/2026	23:00-07:00	45	39
07/06/2026	07:00-23:00	51	47
07/06/2026	23:00-07:00	49	47
08/06/2026	07:00-23:00	55	50
08/06/2026	23:00-07:00	43	42
09/06/2026	07:00-23:00	46	44
09/06/2026	23:00-07:00	44	42
10/06/2026	07:00-23:00	39	37
10/06/2026	23:00-07:00	36	36
11/06/2026	07:00-23:00	42	42
11/06/2026	23:00-07:00	42	42
12/06/2026	07:00-23:00	50	48
12/06/2026	23:00-07:00	---	---
13/06/2026	07:00-23:00	57	51
13/06/2026	23:00-07:00	---	---
14/06/2026	07:00-23:00	---	---
14/06/2026	23:00-07:00	36	36
15/06/2026	07:00-23:00	53	49
15/06/2026	23:00-07:00	50	49
16/06/2026	07:00-23:00	46	44
16/06/2026	23:00-07:00	50	50
17/06/2026	07:00-23:00	---	---
17/06/2026	23:00-07:00	---	---
18/06/2026	07:00-23:00	43	39
18/06/2026	23:00-07:00	---	---
19/06/2026	07:00-23:00	43	43
19/06/2026	23:00-07:00	---	---
20/06/2026	07:00-23:00	---	---
20/06/2026	23:00-07:00	---	---
21/06/2026	07:00-23:00	58	52
21/06/2026	23:00-07:00	50	48
22/06/2026	07:00-23:00	52	49
22/06/2026	23:00-07:00	45	41
23/06/2026	07:00-23:00	56	52
23/06/2026	23:00-07:00	50	48
24/06/2026	07:00-23:00	53	49
24/06/2026	23:00-07:00	---	---
25/06/2026	07:00-23:00	53	51
25/06/2026	23:00-07:00	50	46
26/06/2026	07:00-23:00	54	49
26/06/2026	23:00-07:00	38	34
27/06/2026	07:00-23:00	44	41
27/06/2026	23:00-07:00	45	45
28/06/2026	07:00-23:00	49	45
28/06/2026	23:00-07:00	50	49
29/06/2026	07:00-23:00	48	42
29/06/2026	23:00-07:00	---	---
30/06/2026	07:00-23:00	42	39
30/06/2026	23:00-07:00	44	44

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

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))
		Max	Avg	Max	Avg
1/06/2026	07:00-19:00	47	39	48	37
1/06/2026	19:00-23:00	---	---	51	41
1/06/2026	23:00-07:00	45	44	45	40
2/06/2026	07:00-19:00	45	42	45	39
2/06/2026	19:00-23:00	48	48	53	48
2/06/2026	23:00-07:00	45	42	44	39
3/06/2026	07:00-19:00	46	46	47	42
3/06/2026	19:00-23:00	---	---	53	47
3/06/2026	23:00-07:00	42	42	43	37
4/06/2026	07:00-19:00	48	41	47	39
4/06/2026	19:00-23:00	46	41	53	45
4/06/2026	23:00-07:00	45	36	44	36
5/06/2026	07:00-19:00	51	43	47	41
5/06/2026	19:00-23:00	41	37	48	35
5/06/2026	23:00-07:00	45	42	45	34
6/06/2026	07:00-19:00	58	49	53	42
6/06/2026	19:00-23:00	50	38	48	37
6/06/2026	23:00-07:00	45	31	45	34
7/06/2026	07:00-23:00	54	42	51	39
7/06/2026	23:00-07:00	45	39	44	34
8/06/2026	07:00-19:00	55	45	49	38
8/06/2026	19:00-23:00	49	39	44	36
8/06/2026	23:00-07:00	45	39	42	31
9/06/2026	07:00-19:00	46	43	50	42
9/06/2026	19:00-23:00	43	35	46	34
9/06/2026	23:00-07:00	44	36	45	32
10/06/2026	07:00-19:00	39	37	49	39
10/06/2026	19:00-23:00	40	33	37	29
10/06/2026	23:00-07:00	41	37	44	31
11/06/2026	07:00-19:00	42	42	47	41
11/06/2026	19:00-23:00	41	34	43	34
11/06/2026	23:00-07:00	44	40	43	33
12/06/2026	07:00-19:00	50	48	49	45
12/06/2026	19:00-23:00	29	25	48	35
12/06/2026	23:00-07:00	42	42	44	37
13/06/2026	07:00-19:00	57	47	48	41
13/06/2026	19:00-23:00	---	---	46	38
13/06/2026	23:00-07:00	---	---	41	38
14/06/2026	07:00-23:00	53	41	48	39
14/06/2026	23:00-07:00	41	37	45	37
15/06/2026	07:00-19:00	53	43	44	37
15/06/2026	19:00-23:00	41	34	41	38
15/06/2026	23:00-07:00	45	35	41	33
16/06/2026	07:00-19:00	46	44	44	38
16/06/2026	19:00-23:00	44	37	40	32
16/06/2026	23:00-07:00	---	---	45	36
17/06/2026	07:00-19:00	---	---	36	34
17/06/2026	19:00-23:00	---	---	43	35
17/06/2026	23:00-07:00	45	45	43	40
18/06/2026	07:00-19:00	43	37	38	34
18/06/2026	19:00-23:00	---	---	38	38
18/06/2026	23:00-07:00	41	38	38	34
19/06/2026	07:00-23:00	43	41	19	19
19/06/2026	23:00-07:00	45	40	43	40
20/06/2026	07:00-19:00	---	---	45	40
20/06/2026	19:00-23:00	39	39	37	37
20/06/2026	23:00-07:00	43	41	44	41
21/06/2026	07:00-23:00	58	50	47	39
21/06/2026	23:00-07:00	45	42	45	41
22/06/2026	07:00-19:00	52	46	44	41
22/06/2026	19:00-23:00	42	42	44	39
22/06/2026	23:00-07:00	45	39	43	36
23/06/2026	07:00-19:00	56	49	46	39
23/06/2026	19:00-23:00	---	---	47	41
23/06/2026	23:00-07:00	45	40	44	37
24/06/2026	07:00-19:00	53	47	39	39
24/06/2026	19:00-23:00	41	41	49	47
24/06/2026	23:00-07:00	45	43	44	31
25/06/2026	07:00-19:00	53	50	48	44
25/06/2026	19:00-23:00	---	---	47	40
25/06/2026	23:00-07:00	45	41	44	37
26/06/2026	07:00-19:00	54	47	51	43
26/06/2026	19:00-23:00	52	45	31	31
26/06/2026	23:00-07:00	45	35	42	35
27/06/2026	07:00-19:00	44	39	51	46
27/06/2026	19:00-23:00	41	37	50	37
27/06/2026	23:00-07:00	45	39	45	40
28/06/2026	07:00-23:00	53	41	50	40
28/06/2026	23:00-07:00	42	39	44	41
29/06/2026	07:00-19:00	48	37	47	40
29/06/2026	19:00-23:00	39	30	46	36
29/06/2026	23:00-07:00	39	39	42	37
30/06/2026	07:00-19:00	42	42	42	34
30/06/2026	19:00-23:00	42	35	44	38
30/06/2026	23:00-07:00	45	40	44	35

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).