Appendix E Continuous Noise Monitoring Results for February 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
1/02/2025	07:00-19:00	---	---	75	41	40	70
1/02/2025	19:00-23:00	35	35	60	42	36	60
1/02/2025	23:00-07:00	34	34	45	38	33	45
2/02/2025	07:00-23:00	38	30	60	49	35	60
2/02/2025	23:00-07:00	---	---	45	39	39	45
3/02/2025	07:00-19:00	---	---	75	35	35	70
3/02/2025	19:00-23:00	41	38	60	36	29	60
3/02/2025	23:00-07:00	20	20	45	42	32	45
4/02/2025	07:00-19:00	---	---	75	---	---	70
4/02/2025	19:00-23:00	39	36	60	29	29	60
4/02/2025	23:00-07:00	---	---	45	37	30	45
5/02/2025	07:00-19:00	---	---	75	---	---	70
5/02/2025	19:00-23:00	---	---	60	43	36	60
5/02/2025	23:00-07:00	---	---	45	41	38	45
6/02/2025	07:00-19:00	---	---	75	40	40	70
6/02/2025	19:00-23:00	44	44	60	---	---	60
6/02/2025	23:00-07:00	---	---	45	39	36	45
7/02/2025	07:00-19:00	---	---	75	---	---	70
7/02/2025	19:00-23:00	33	30	60	47	40	60
7/02/2025	23:00-07:00	36	36	45	42	39	45
8/02/2025	07:00-19:00	---	---	75	37	35	70
8/02/2025	19:00-23:00	---	---	60	37	31	60
8/02/2025	23:00-07:00	---	---	45	35	32	45
9/02/2025	07:00-23:00	42	34	60	38	30	60
9/02/2025	23:00-07:00	45	44	45	45	38	45
10/02/2025	07:00-19:00	43	37	75	39	39	70
10/02/2025	19:00-23:00	38	36	60	35	31	60
10/02/2025	23:00-07:00	44	44	45	42	39	45
11/02/2025	07:00-19:00	54	50	75	43	40	70
11/02/2025	19:00-23:00	43	43	60	42	39	60
11/02/2025	23:00-07:00	32	32	45	42	39	45
12/02/2025	07:00-19:00	---	---	75	---	---	70
12/02/2025	19:00-23:00	40	32	60	35	31	60
12/02/2025	23:00-07:00	32	31	45	---	---	45
13/02/2025	07:00-19:00	---	---	75	---	---	70
13/02/2025	19:00-23:00	39	33	60	---	---	60
13/02/2025	23:00-07:00	---	---	45	40	36	45
14/02/2025	07:00-19:00	---	---	75	43	43	70
14/02/2025	19:00-23:00	44	44	60	43	42	60
14/02/2025	23:00-07:00	42	34	45	38	30	45
15/02/2025	07:00-19:00	28	28	75	40	36	70
15/02/2025	19:00-23:00	40	40	60	48	36	60
15/02/2025	23:00-07:00	---	---	45	42	38	45
16/02/2025	07:00-23:00	59	42	60	46	36	60
16/02/2025	23:00-07:00	---	---	45	41	39	45
17/02/2025	07:00-19:00	---	---	75	51	41	70
17/02/2025	19:00-23:00	36	36	60	38	36	60
17/02/2025	23:00-07:00	---	---	45	44	39	45
18/02/2025	07:00-19:00	---	---	75	46	43	70
18/02/2025	19:00-23:00	34	30	60	38	29	60
18/02/2025	23:00-07:00	40	35	45	45	36	45
19/02/2025	07:00-19:00	---	---	75	44	38	70
19/02/2025	19:00-23:00	45	40	60	41	34	60
19/02/2025	23:00-07:00	45	37	45	42	34	45
20/02/2025	07:00-19:00	---	---	75	44	43	70
20/02/2025	19:00-23:00	39	39	60	35	26	60
20/02/2025	23:00-07:00	25	25	45	44	38	45
21/02/2025	07:00-19:00	44	44	75	38	38	70
21/02/2025	19:00-23:00	42	34	60	35	27	60
21/02/2025	23:00-07:00	---	---	45	32	24	45
22/02/2025	07:00-19:00	---	---	75	---	---	70
22/02/2025	19:00-23:00	44	44	60	35	31	60
22/02/2025	23:00-07:00	---	---	45	35	28	45
23/02/2025	07:00-23:00	45	38	60	42	32	60
23/02/2025	23:00-07:00	---	---	45	42	30	45
24/02/2025	07:00-19:00	---	---	75	48	41	70
24/02/2025	19:00-23:00	34	34	60	42	35	60
24/02/2025	23:00-07:00	---	---	45	42	32	45
25/02/2025	07:00-19:00	---	---	75	47	34	70
25/02/2025	19:00-23:00	41	28	60	38	27	60
25/02/2025	23:00-07:00	26	26	45	43	35	45
26/02/2025	07:00-19:00	---	---	75	43	37	70
26/02/2025	19:00-23:00	44	32	60	43	36	60
26/02/2025	23:00-07:00	30	27	45	45	41	45
27/02/2025	07:00-19:00	39	39	75	51	41	70
27/02/2025	19:00-23:00	44	40	60	46	36	60
27/02/2025	23:00-07:00	---	---	45	42	39	45
28/02/2025	07:00-19:00	49	49	75	44	40	70
28/02/2025	19:00-23:00	44	44	60	37	34	60
28/02/2025	23:00-07:00	23	23	45	18	18	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).