Appendix E Continuous Noise Monitoring Results for June 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
1/06/2025	07:00-23:00	57	44	60	45	34	60
1/06/2025	23:00-07:00	45	37	45	40	32	45
2/06/2025	07:00-19:00	49	45	75	---	---	70
2/06/2025	19:00-23:00	---	---	60	38	37	60
2/06/2025	23:00-07:00	44	42	45	37	34	45
3/06/2025	07:00-19:00	55	47	75	---	---	70
3/06/2025	19:00-23:00	41	41	60	---	---	60
3/06/2025	23:00-07:00	44	40	45	38	30	45
4/06/2025	07:00-19:00	45	45	75	38	38	70
4/06/2025	19:00-23:00	42	37	60	46	35	60
4/06/2025	23:00-07:00	42	37	45	42	37	45
5/06/2025	07:00-19:00	45	44	75	---	---	70
5/06/2025	19:00-23:00	36	32	60	40	34	60
5/06/2025	23:00-07:00	45	45	45	41	33	45
6/06/2025	07:00-19:00	54	46	75	---	---	70
6/06/2025	19:00-23:00	51	36	60	37	36	60
6/06/2025	23:00-07:00	44	39	45	38	35	45
7/06/2025	07:00-19:00	53	51	75	38	38	70
7/06/2025	19:00-23:00	43	29	60	45	30	60
7/06/2025	23:00-07:00	45	40	45	39	31	45
8/06/2025	07:00-23:00	54	44	60	38	33	60
8/06/2025	23:00-07:00	41	41	45	35	35	45
9/06/2025	07:00-19:00	48	45	75	---	---	70
9/06/2025	19:00-23:00	36	36	60	42	41	60
9/06/2025	23:00-07:00	---	---	45	43	33	45
10/06/2025	07:00-19:00	59	56	75	38	38	70
10/06/2025	19:00-23:00	46	43	60	47	39	60
10/06/2025	23:00-07:00	37	33	45	45	38	45
11/06/2025	07:00-19:00	---	---	75	49	43	70
11/06/2025	19:00-23:00	46	38	60	51	37	60
11/06/2025	23:00-07:00	42	36	45	41	32	45
12/06/2025	07:00-19:00	57	51	75	46	42	70
12/06/2025	19:00-23:00	34	34	60	45	40	60
12/06/2025	23:00-07:00	44	38	45	37	33	45
13/06/2025	07:00-19:00	50	42	75	46	40	70
13/06/2025	19:00-23:00	39	33	60	45	36	60
13/06/2025	23:00-07:00	23	23	45	45	38	45
14/06/2025	07:00-19:00	---	---	75	---	---	70
14/06/2025	19:00-23:00	---	---	60	---	---	60
14/06/2025	23:00-07:00	---	---	45	---	---	45
15/06/2025	07:00-23:00	40	39	60	48	36	60
15/06/2025	23:00-07:00	38	38	45	42	35	45
16/06/2025	07:00-19:00	53	52	75	38	37	70
16/06/2025	19:00-23:00	44	44	60	41	35	60
16/06/2025	23:00-07:00	42	42	45	44	41	45
17/06/2025	07:00-19:00	48	48	75	45	40	70
17/06/2025	19:00-23:00	40	39	60	41	36	60
17/06/2025	23:00-07:00	---	---	45	42	38	45
18/06/2025	07:00-19:00	49	45	75	44	39	70
18/06/2025	19:00-23:00	40	34	60	47	40	60
18/06/2025	23:00-07:00	43	41	45	45	34	45
19/06/2025	07:00-19:00	43	40	75	48	39	70
19/06/2025	19:00-23:00	---	---	60	48	40	60
19/06/2025	23:00-07:00	45	44	45	44	37	45
20/06/2025	07:00-19:00	52	51	75	43	36	70
20/06/2025	19:00-23:00	47	43	60	44	40	60
20/06/2025	23:00-07:00	43	37	45	44	34	45
21/06/2025	07:00-19:00	38	36	75	30	30	70
21/06/2025	19:00-23:00	---	---	60	46	39	60
21/06/2025	23:00-07:00	---	---	45	43	38	45
22/06/2025	07:00-23:00	56	46	60	53	41	60
22/06/2025	23:00-07:00	44	41	45	39	36	45
23/06/2025	07:00-19:00	51	44	75	46	34	70
23/06/2025	19:00-23:00	43	41	60	48	43	60
23/06/2025	23:00-07:00	32	32	45	45	38	45
24/06/2025	07:00-19:00	54	42	75	48	40	70
24/06/2025	19:00-23:00	45	40	60	49	41	60
24/06/2025	23:00-07:00	---	---	45	45	40	45
25/06/2025	07:00-19:00	52	46	75	47	40	70
25/06/2025	19:00-23:00	41	40	60	49	38	60
25/06/2025	23:00-07:00	40	38	45	45	42	45
26/06/2025	07:00-19:00	46	43	75	46	43	70
26/06/2025	19:00-23:00	40	39	60	49	43	60
26/06/2025	23:00-07:00	43	38	45	45	41	45
27/06/2025	07:00-19:00	53	44	75	44	35	70
27/06/2025	19:00-23:00	44	36	60	46	39	60
27/06/2025	23:00-07:00	41	31	45	41	32	45
28/06/2025	07:00-19:00	43	38	75	45	38	70
28/06/2025	19:00-23:00	44	37	60	47	38	60
28/06/2025	23:00-07:00	45	43	45	44	41	45
29/06/2025	07:00-23:00	56	44	60	47	37	60
29/06/2025	23:00-07:00	41	36	45	45	40	45
30/06/2025	07:00-19:00	50	46	75	41	37	70
30/06/2025	19:00-23:00	46	40	60	48	40	60
30/06/2025	23:00-07:00	43	36	45	45	40	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).