Appendix E Continuous Noise Monitoring Results for September 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
1/09/2025	07:00-19:00	---	---	75	41	36	70
1/09/2025	19:00-23:00	44	35	60	38	30	60
1/09/2025	23:00-07:00	39	39	45	43	36	45
2/09/2025	07:00-19:00	---	---	75	38	31	70
2/09/2025	19:00-23:00	39	34	60	36	33	60
2/09/2025	23:00-07:00	---	---	45	35	29	45
3/09/2025	07:00-19:00	---	---	75	39	31	70
3/09/2025	19:00-23:00	47	35	60	43	34	60
3/09/2025	23:00-07:00	45	45	45	43	37	45
4/09/2025	07:00-19:00	---	---	75	41	35	70
4/09/2025	19:00-23:00	45	38	60	38	30	60
4/09/2025	23:00-07:00	---	---	45	44	36	45
5/09/2025	07:00-19:00	57	53	75	38	33	70
5/09/2025	19:00-23:00	44	35	60	42	34	60
5/09/2025	23:00-07:00	33	33	45	42	36	45
6/09/2025	07:00-19:00	---	---	75	34	31	70
6/09/2025	19:00-23:00	45	36	60	41	35	60
6/09/2025	23:00-07:00	42	25	45	45	37	45
7/09/2025	07:00-23:00	44	37	60	48	37	60
7/09/2025	23:00-07:00	44	41	45	39	36	45
8/09/2025	07:00-19:00	---	---	75	---	---	70
8/09/2025	19:00-23:00	---	---	60	43	43	60
8/09/2025	23:00-07:00	---	---	45	32	32	45
9/09/2025	07:00-19:00	---	---	75	38	36	70
9/09/2025	19:00-23:00	---	---	60	29	29	60
9/09/2025	23:00-07:00	43	35	45	45	40	45
10/09/2025	07:00-19:00	---	---	75	41	36	70
10/09/2025	19:00-23:00	40	30	60	48	34	60
10/09/2025	23:00-07:00	43	30	45	37	29	45
11/09/2025	07:00-19:00	---	---	75	40	33	70
11/09/2025	19:00-23:00	47	35	60	43	33	60
11/09/2025	23:00-07:00	---	---	45	45	33	45
12/09/2025	07:00-19:00	---	---	75	---	---	70
12/09/2025	19:00-23:00	38	31	60	45	35	60
12/09/2025	23:00-07:00	37	33	45	39	31	45
13/09/2025	07:00-19:00	---	---	75	44	42	70
13/09/2025	19:00-23:00	36	36	60	42	32	60
13/09/2025	23:00-07:00	---	---	45	45	36	45
14/09/2025	07:00-23:00	45	36	60	42	35	60
14/09/2025	23:00-07:00	38	38	45	41	35	45
15/09/2025	07:00-19:00	---	---	75	46	39	70
15/09/2025	19:00-23:00	45	36	60	43	33	60
15/09/2025	23:00-07:00	32	32	45	45	38	45
16/09/2025	07:00-19:00	58	58	75	47	43	70
16/09/2025	19:00-23:00	45	42	60	43	38	60
16/09/2025	23:00-07:00	---	---	45	39	33	45
17/09/2025	07:00-19:00	---	---	75	45	38	70
17/09/2025	19:00-23:00	43	38	60	42	36	60
17/09/2025	23:00-07:00	---	---	45	40	33	45
18/09/2025	07:00-19:00	---	---	75	43	33	70
18/09/2025	19:00-23:00	45	41	60	48	36	60
18/09/2025	23:00-07:00	24	24	45	39	30	45
19/09/2025	07:00-19:00	---	---	75	33	32	70
19/09/2025	19:00-23:00	---	---	60	38	38	60
19/09/2025	23:00-07:00	44	41	45	45	40	45
20/09/2025	07:00-19:00	42	42	75	42	33	70
20/09/2025	19:00-23:00	41	37	60	38	35	60
20/09/2025	23:00-07:00	37	32	45	45	37	45
21/09/2025	07:00-23:00	53	41	60	56	38	60
21/09/2025	23:00-07:00	39	33	45	42	37	45
22/09/2025	07:00-19:00	61	61	75	39	37	70
22/09/2025	19:00-23:00	42	42	60	---	---	60
22/09/2025	23:00-07:00	39	35	45	34	27	45
23/09/2025	07:00-19:00	---	---	75	24	21	70
23/09/2025	19:00-23:00	49	42	60	46	38	60
23/09/2025	23:00-07:00	45	45	45	45	42	45
24/09/2025	07:00-19:00	---	---	75	---	---	70
24/09/2025	19:00-23:00	---	---	60	---	---	60
24/09/2025	23:00-07:00	---	---	45	---	---	45
25/09/2025	07:00-19:00	---	---	75	---	---	70
25/09/2025	19:00-23:00	40	40	60	36	36	60
25/09/2025	23:00-07:00	39	37	45	34	33	45
26/09/2025	07:00-19:00	52	52	75	70	56	70
26/09/2025	19:00-23:00	41	34	60	54	38	60
26/09/2025	23:00-07:00	40	32	45	45	34	45
27/09/2025	07:00-19:00	---	---	75	69	59	70
27/09/2025	19:00-23:00	50	40	60	60	37	60
27/09/2025	23:00-07:00	43	35	45	38	30	45
28/09/2025	07:00-23:00	48	36	60	60	47	60
28/09/2025	23:00-07:00	35	30	45	44	30	45
29/09/2025	07:00-19:00	39	39	75	59	54	70
29/09/2025	19:00-23:00	40	31	60	51	40	60
29/09/2025	23:00-07:00	45	33	45	45	39	45
30/09/2025	07:00-19:00	---	---	75	45	41	70
30/09/2025	19:00-23:00	43	40	60	51	39	60
30/09/2025	23:00-07:00	43	31	45	41	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).