Appendix E Continuous Noise Monitoring Results for March 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
1/03/2025	07:00-19:00	56	55	75	37	35	70
1/03/2025	19:00-23:00	---	---	60	32	32	60
1/03/2025	23:00-07:00	---	---	45	43	41	45
2/03/2025	07:00-23:00	55	38	60	41	34	60
2/03/2025	23:00-07:00	---	---	45	42	41	45
3/03/2025	07:00-19:00	---	---	75	---	---	70
3/03/2025	19:00-23:00	34	34	60	40	37	60
3/03/2025	23:00-07:00	---	---	45	43	38	45
4/03/2025	07:00-19:00	53	48	75	37	37	70
4/03/2025	19:00-23:00	43	35	60	44	38	60
4/03/2025	23:00-07:00	---	---	45	35	24	45
5/03/2025	07:00-19:00	52	52	75	45	43	70
5/03/2025	19:00-23:00	---	---	60	15	15	60
5/03/2025	23:00-07:00	---	---	45	17	17	45
6/03/2025	07:00-19:00	---	---	75	40	40	70
6/03/2025	19:00-23:00	41	40	60	36	32	60
6/03/2025	23:00-07:00	33	30	45	36	29	45
7/03/2025	07:00-19:00	---	---	75	---	---	70
7/03/2025	19:00-23:00	---	---	60	37	35	60
7/03/2025	23:00-07:00	---	---	45	38	33	45
8/03/2025	07:00-19:00	---	---	75	36	36	70
8/03/2025	19:00-23:00	44	44	60	42	36	60
8/03/2025	23:00-07:00	27	27	45	39	33	45
9/03/2025	07:00-23:00	46	39	60	48	38	60
9/03/2025	23:00-07:00	35	33	45	43	30	45
10/03/2025	07:00-19:00	57	57	75	34	34	70
10/03/2025	19:00-23:00	34	24	60	41	33	60
10/03/2025	23:00-07:00	38	31	45	39	29	45
11/03/2025	07:00-19:00	53	48	75	42	38	70
11/03/2025	19:00-23:00	46	46	60	42	39	60
11/03/2025	23:00-07:00	45	39	45	43	36	45
12/03/2025	07:00-19:00	55	48	75	42	39	70
12/03/2025	19:00-23:00	33	26	60	42	35	60
12/03/2025	23:00-07:00	35	35	45	43	39	45
13/03/2025	07:00-19:00	44	44	75	---	---	70
13/03/2025	19:00-23:00	41	36	60	37	33	60
13/03/2025	23:00-07:00	45	41	45	36	29	45
14/03/2025	07:00-19:00	---	---	75	45	44	70
14/03/2025	19:00-23:00	---	---	60	---	---	60
14/03/2025	23:00-07:00	---	---	45	44	37	45
15/03/2025	07:00-19:00	38	38	75	---	---	70
15/03/2025	19:00-23:00	45	45	60	48	35	60
15/03/2025	23:00-07:00	39	32	45	38	31	45
16/03/2025	07:00-23:00	53	39	60	47	35	60
16/03/2025	23:00-07:00	---	---	45	40	30	45
17/03/2025	07:00-19:00	46	46	75	41	40	70
17/03/2025	19:00-23:00	21	21	60	30	23	60
17/03/2025	23:00-07:00	---	---	45	44	31	45
18/03/2025	07:00-19:00	---	---	75	---	---	70
18/03/2025	19:00-23:00	44	34	60	43	33	60
18/03/2025	23:00-07:00	---	---	45	45	34	45
19/03/2025	07:00-19:00	40	40	75	37	37	70
19/03/2025	19:00-23:00	---	---	60	39	35	60
19/03/2025	23:00-07:00	---	---	45	44	33	45
20/03/2025	07:00-19:00	---	---	75	41	39	70
20/03/2025	19:00-23:00	33	33	60	45	40	60
20/03/2025	23:00-07:00	---	---	45	38	35	45
21/03/2025	07:00-19:00	---	---	75	---	---	70
21/03/2025	19:00-23:00	42	42	60	44	40	60
21/03/2025	23:00-07:00	44	44	45	---	---	45
22/03/2025	07:00-19:00	---	---	75	---	---	70
22/03/2025	19:00-23:00	24	24	60	41	38	60
22/03/2025	23:00-07:00	---	---	45	---	---	45
23/03/2025	07:00-23:00	54	40	60	49	35	60
23/03/2025	23:00-07:00	28	28	45	40	36	45
24/03/2025	07:00-19:00	44	42	75	---	---	70
24/03/2025	19:00-23:00	35	35	60	25	25	60
24/03/2025	23:00-07:00	44	37	45	39	31	45
25/03/2025	07:00-19:00	46	46	75	---	---	70
25/03/2025	19:00-23:00	34	32	60	38	32	60
25/03/2025	23:00-07:00	---	---	45	40	33	45
26/03/2025	07:00-19:00	51	49	75	45	45	70
26/03/2025	19:00-23:00	42	42	60	33	30	60
26/03/2025	23:00-07:00	---	---	45	36	29	45
27/03/2025	07:00-19:00	---	---	75	---	---	70
27/03/2025	19:00-23:00	44	44	60	41	35	60
27/03/2025	23:00-07:00	---	---	45	41	38	45
28/03/2025	07:00-19:00	35	35	75	---	---	70
28/03/2025	19:00-23:00	48	41	60	43	37	60
28/03/2025	23:00-07:00	43	37	45	40	33	45
29/03/2025	07:00-19:00	---	---	75	---	---	70
29/03/2025	19:00-23:00	38	34	60	---	---	60
29/03/2025	23:00-07:00	---	---	45	31	29	45
30/03/2025	07:00-23:00	49	35	60	49	36	60
30/03/2025	23:00-07:00	---	---	45	40	37	45
31/03/2025	07:00-19:00	---	---	75	33	31	70
31/03/2025	19:00-23:00	42	40	60	40	37	60
31/03/2025	23:00-07:00	---	---	45	43	35	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).