Appendix E Continuous Noise Monitoring Results for April 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 - 20/9/2023 (Ash Lagoon)

15/8/2023 (Ching Lam)

B&K 4231 calibrator (10/5/2024)

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
1/04/2025	07:00-19:00	45	45	75	35	35	70
1/04/2025	19:00-23:00	33	33	60	42	34	60
1/04/2025	23:00-07:00	42	42	45	44	41	45
2/04/2025	07:00-19:00	57	57	75	---	---	70
2/04/2025	19:00-23:00	---	---	60	37	30	60
2/04/2025	23:00-07:00	44	44	45	40	32	45
3/04/2025	07:00-19:00	---	---	75	28	28	70
3/04/2025	19:00-23:00	40	40	60	42	35	60
3/04/2025	23:00-07:00	---	---	45	39	32	45
4/04/2025	07:00-23:00	48	37	60	53	36	60
4/04/2025	23:00-07:00	45	41	45	41	38	45
5/04/2025	07:00-19:00	49	45	75	44	41	70
5/04/2025	19:00-23:00	42	38	60	42	33	60
5/04/2025	23:00-07:00	42	36	45	43	39	45
6/04/2025	07:00-23:00	58	41	60	51	35	60
6/04/2025	23:00-07:00	44	39	45	44	40	45
7/04/2025	07:00-19:00	40	40	75	38	35	70
7/04/2025	19:00-23:00	42	34	60	38	31	60
7/04/2025	23:00-07:00	35	34	45	36	27	45
8/04/2025	07:00-19:00	---	---	75	43	39	70
8/04/2025	19:00-23:00	32	31	60	38	32	60
8/04/2025	23:00-07:00	37	31	45	45	40	45
9/04/2025	07:00-19:00	---	---	75	35	34	70
9/04/2025	19:00-23:00	45	41	60	39	33	60
9/04/2025	23:00-07:00	40	37	45	33	27	45
10/04/2025	07:00-19:00	58	48	75	---	---	70
10/04/2025	19:00-23:00	47	37	60	43	33	60
10/04/2025	23:00-07:00	42	40	45	42	37	45
11/04/2025	07:00-19:00	50	40	75	36	36	70
11/04/2025	19:00-23:00	45	37	60	44	36	60
11/04/2025	23:00-07:00	37	34	45	45	38	45
12/04/2025	07:00-19:00	49	49	75	40	35	70
12/04/2025	19:00-23:00	41	36	60	39	34	60
12/04/2025	23:00-07:00	40	34	45	41	31	45
13/04/2025	07:00-23:00	38	36	60	42	34	60
13/04/2025	23:00-07:00	40	40	45	38	31	45
14/04/2025	07:00-19:00	25	25	75	---	---	70
14/04/2025	19:00-23:00	---	---	60	---	---	60
14/04/2025	23:00-07:00	45	36	45	40	33	45
15/04/2025	07:00-19:00	---	---	75	45	39	70
15/04/2025	19:00-23:00	---	---	60	45	36	60
15/04/2025	23:00-07:00	---	---	45	43	40	45
16/04/2025	07:00-19:00	---	---	75	40	37	70
16/04/2025	19:00-23:00	35	30	60	41	34	60
16/04/2025	23:00-07:00	---	---	45	39	35	45
17/04/2025	07:00-19:00	53	52	75	39	33	70
17/04/2025	19:00-23:00	44	35	60	45	35	60
17/04/2025	23:00-07:00	45	41	45	37	27	45
18/04/2025	07:00-23:00	49	43	60	55	39	60
18/04/2025	23:00-07:00	44	44	45	45	36	45
19/04/2025	07:00-23:00	39	39	60	46	46	60
19/04/2025	23:00-07:00	43	43	45	---	---	45
20/04/2025	07:00-23:00	53	43	60	40	33	60
20/04/2025	23:00-07:00	36	35	45	41	40	45
21/04/2025	07:00-23:00	51	45	60	36	35	60
21/04/2025	23:00-07:00	40	34	45	43	39	45
22/04/2025	07:00-19:00	49	41	75	41	35	70
22/04/2025	19:00-23:00	---	---	60	31	28	60
22/04/2025	23:00-07:00	44	41	45	41	36	45
23/04/2025	07:00-19:00	50	43	75	---	---	70
23/04/2025	19:00-23:00	30	30	60	---	---	60
23/04/2025	23:00-07:00	45	44	45	30	29	45
24/04/2025	07:00-19:00	---	---	75	32	26	70
24/04/2025	19:00-23:00	43	43	60	---	---	60
24/04/2025	23:00-07:00	45	39	45	45	37	45
25/04/2025	07:00-19:00	---	---	75	49	43	70
25/04/2025	19:00-23:00	32	32	60	48	34	60
25/04/2025	23:00-07:00	42	37	45	43	36	45
26/04/2025	07:00-19:00	---	---	75	44	36	70
26/04/2025	19:00-23:00	39	38	60	34	33	60
26/04/2025	23:00-07:00	45	35	45	45	35	45
27/04/2025	07:00-23:00	53	43	60	46	36	60
27/04/2025	23:00-07:00	45	40	45	38	38	45
28/04/2025	07:00-19:00	49	45	75	40	38	70
28/04/2025	19:00-23:00	---	---	60	---	---	60
28/04/2025	23:00-07:00	44	43	45	---	---	45
29/04/2025	07:00-19:00	34	34	75	45	40	70
29/04/2025	19:00-23:00	41	38	60	37	36	60
29/04/2025	23:00-07:00	45	40	45	---	---	45
30/04/2025	07:00-19:00	53	47	75	40	34	70
30/04/2025	19:00-23:00	43	37	60	38	31	60
30/04/2025	23:00-07:00	25	25	45	41	34	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).