Appendix E Continuous Noise Monitoring Results for October 2025

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: B&K 2250 sound level meters and B&K 4231 sound

level calibrator

Lab. Calibration Date: B&K 2250 sound level meters - 18/6/2024 (Ash Lagoon)

7/5/2025 (Ching Lam)

B&K 4231 calibrator (7/5/2025)

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
1/10/2025	07:00-23:00	49	37	60	54	41	60
1/10/2025	23:00-07:00	40	35	45	45	40	45
2/10/2025	07:00-19:00	38	38	75	59	49	70
2/10/2025	19:00-23:00	40	36	60	51	43	60
2/10/2025	23:00-07:00	---	---	45	45	43	45
3/10/2025	07:00-19:00	---	---	75	46	37	70
3/10/2025	19:00-23:00	41	38	60	38	34	60
3/10/2025	23:00-07:00	40	36	45	39	31	45
4/10/2025	07:00-19:00	---	---	75	61	52	70
4/10/2025	19:00-23:00	---	---	60	---	---	60
4/10/2025	23:00-07:00	---	---	45	---	---	45
5/10/2025	07:00-23:00	---	---	60	60	60	60
5/10/2025	23:00-07:00	38	36	45	33	31	45
6/10/2025	07:00-19:00	---	---	75	59	52	70
6/10/2025	19:00-23:00	45	34	60	39	35	60
6/10/2025	23:00-07:00	33	31	45	43	40	45
7/10/2025	07:00-23:00	45	36	60	46	34	60
7/10/2025	23:00-07:00	39	37	45	45	41	45
8/10/2025	07:00-19:00	---	---	75	55	49	70
8/10/2025	19:00-23:00	42	32	60	59	48	60
8/10/2025	23:00-07:00	29	29	45	45	39	45
9/10/2025	07:00-19:00	---	---	75	65	58	70
9/10/2025	19:00-23:00	45	35	60	50	41	60
9/10/2025	23:00-07:00	31	30	45	45	36	45
10/10/2025	07:00-19:00	57	56	75	61	53	70
10/10/2025	19:00-23:00	56	54	60	49	37	60
10/10/2025	23:00-07:00	44	39	45	44	38	45
11/10/2025	07:00-19:00	---	---	75	62	52	70
11/10/2025	19:00-23:00	35	35	60	57	45	60
11/10/2025	23:00-07:00	40	37	45	45	42	45
12/10/2025	07:00-23:00	51	37	60	60	50	60
12/10/2025	23:00-07:00	39	33	45	45	38	45
13/10/2025	07:00-19:00	---	---	75	53	47	70
13/10/2025	19:00-23:00	41	36	60	51	41	60
13/10/2025	23:00-07:00	44	35	45	44	38	45
14/10/2025	07:00-19:00	51	51	75	55	48	70
14/10/2025	19:00-23:00	41	37	60	44	35	60
14/10/2025	23:00-07:00	37	37	45	42	34	45
15/10/2025	07:00-19:00	48	48	75	51	45	70
15/10/2025	19:00-23:00	40	35	60	46	39	60
15/10/2025	23:00-07:00	39	39	45	45	42	45
16/10/2025	07:00-19:00	---	---	75	60	53	70
16/10/2025	19:00-23:00	51	42	60	42	33	60
16/10/2025	23:00-07:00	37	29	45	45	37	45
17/10/2025	07:00-19:00	46	46	75	57	51	70
17/10/2025	19:00-23:00	40	36	60	57	40	60
17/10/2025	23:00-07:00	---	---	45	43	34	45
18/10/2025	07:00-19:00	47	47	75	58	49	70
18/10/2025	19:00-23:00	38	34	60	51	42	60
18/10/2025	23:00-07:00	35	28	45	45	40	45
19/10/2025	07:00-23:00	44	37	60	55	39	60
19/10/2025	23:00-07:00	33	33	45	45	36	45
20/10/2025	07:00-19:00	---	---	75	50	39	70
20/10/2025	19:00-23:00	41	30	60	53	39	60
20/10/2025	23:00-07:00	45	35	45	45	36	45
21/10/2025	07:00-19:00	---	---	75	47	40	70
21/10/2025	19:00-23:00	40	35	60	45	34	60
21/10/2025	23:00-07:00	44	30	45	45	37	45
22/10/2025	07:00-19:00	---	---	75	46	43	70
22/10/2025	19:00-23:00	47	36	60	45	35	60
22/10/2025	23:00-07:00	39	32	45	45	39	45
23/10/2025	07:00-19:00	---	---	75	42	39	70
23/10/2025	19:00-23:00	40	35	60	51	37	60
23/10/2025	23:00-07:00	31	31	45	43	34	45
24/10/2025	07:00-19:00	---	---	75	39	34	70
24/10/2025	19:00-23:00	44	34	60	43	33	60
24/10/2025	23:00-07:00	---	---	45	45	35	45
25/10/2025	07:00-19:00	41	41	75	37	30	70
25/10/2025	19:00-23:00	40	34	60	41	32	60
25/10/2025	23:00-07:00	---	---	45	42	35	45
26/10/2025	07:00-23:00	54	46	60	48	34	60
26/10/2025	23:00-07:00	---	---	45	40	33	45
27/10/2025	07:00-19:00	---	---	75	---	---	70
27/10/2025	19:00-23:00	23	23	60	40	34	60
27/10/2025	23:00-07:00	---	---	45	42	33	45
28/10/2025	07:00-19:00	---	---	75	40	40	70
28/10/2025	19:00-23:00	42	38	60	46	40	60
28/10/2025	23:00-07:00	45	38	45	45	40	45
29/10/2025	07:00-23:00	45	35	60	60	44	60
29/10/2025	23:00-07:00	---	---	45	45	40	45
30/10/2025	07:00-19:00	51	48	75	49	42	70
30/10/2025	19:00-23:00	39	36	60	48	34	60
30/10/2025	23:00-07:00	40	36	45	45	36	45
31/10/2025	07:00-19:00	---	---	75	37	30	70
31/10/2025	19:00-23:00	37	33	60	47	31	60
31/10/2025	23:00-07:00	35	29	45	42	32	45

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).