Appendix E Continuous Noise Monitoring Results for May 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 (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
1/05/2025	07:00-23:00	53	42	60	42	36	60
1/05/2025	23:00-07:00	43	38	45	34	30	45
2/05/2025	07:00-19:00	36	28	75	34	33	70
2/05/2025	19:00-23:00	35	35	60	41	37	60
2/05/2025	23:00-07:00	32	32	45	43	39	45
3/05/2025	07:00-19:00	---	---	75	---	---	70
3/05/2025	19:00-23:00	35	34	60	22	22	60
3/05/2025	23:00-07:00	41	39	45	---	---	45
4/05/2025	07:00-23:00	53	40	60	47	41	60
4/05/2025	23:00-07:00	22	22	45	43	36	45
5/05/2025	07:00-23:00	49	37	60	43	39	60
5/05/2025	23:00-07:00	41	38	45	41	37	45
6/05/2025	07:00-19:00	43	43	75	42	35	70
6/05/2025	19:00-23:00	42	37	60	34	34	60
6/05/2025	23:00-07:00	45	36	45	37	29	45
7/05/2025	07:00-19:00	50	50	75	42	36	70
7/05/2025	19:00-23:00	42	33	60	48	39	60
7/05/2025	23:00-07:00	42	36	45	45	39	45
8/05/2025	07:00-19:00	---	---	75	45	41	70
8/05/2025	19:00-23:00	40	33	60	42	32	60
8/05/2025	23:00-07:00	43	38	45	45	37	45
9/05/2025	07:00-19:00	59	58	75	48	48	70
9/05/2025	19:00-23:00	---	---	60	37	35	60
9/05/2025	23:00-07:00	43	41	45	40	37	45
10/05/2025	07:00-19:00	---	---	75	---	---	70
10/05/2025	19:00-23:00	45	36	60	49	38	60
10/05/2025	23:00-07:00	43	42	45	40	38	45
11/05/2025	07:00-23:00	52	45	60	45	37	60
11/05/2025	23:00-07:00	38	38	45	---	---	45
12/05/2025	07:00-19:00	50	48	75	42	40	70
12/05/2025	19:00-23:00	37	32	60	42	37	60
12/05/2025	23:00-07:00	44	39	45	45	40	45
13/05/2025	07:00-19:00	55	52	75	39	39	70
13/05/2025	19:00-23:00	---	---	60	41	36	60
13/05/2025	23:00-07:00	44	40	45	42	40	45
14/05/2025	07:00-19:00	53	52	75	---	---	70
14/05/2025	19:00-23:00	31	28	60	20	20	60
14/05/2025	23:00-07:00	45	39	45	29	29	45
15/05/2025	07:00-19:00	---	---	75	---	---	70
15/05/2025	19:00-23:00	---	---	60	---	---	60
15/05/2025	23:00-07:00	43	41	45	---	---	45
16/05/2025	07:00-19:00	---	---	75	---	---	70
16/05/2025	19:00-23:00	37	37	60	46	39	60
16/05/2025	23:00-07:00	45	39	45	33	26	45
17/05/2025	07:00-19:00	---	---	75	---	---	70
17/05/2025	19:00-23:00	33	33	60	---	---	60
17/05/2025	23:00-07:00	39	36	45	32	29	45
18/05/2025	07:00-23:00	47	40	60	39	31	60
18/05/2025	23:00-07:00	45	43	45	---	---	45
19/05/2025	07:00-19:00	---	---	75	---	---	70
19/05/2025	19:00-23:00	44	44	60	---	---	60
19/05/2025	23:00-07:00	45	44	45	40	30	45
20/05/2025	07:00-19:00	---	---	75	---	---	70
20/05/2025	19:00-23:00	49	49	60	---	---	60
20/05/2025	23:00-07:00	44	40	45	35	30	45
21/05/2025	07:00-19:00	38	38	75	---	---	70
21/05/2025	19:00-23:00	---	---	60	---	---	60
21/05/2025	23:00-07:00	43	38	45	---	---	45
22/05/2025	07:00-19:00	59	53	75	---	---	70
22/05/2025	19:00-23:00	40	40	60	---	---	60
22/05/2025	23:00-07:00	45	40	45	---	---	45
23/05/2025	07:00-19:00	48	48	75	---	---	70
23/05/2025	19:00-23:00	45	45	60	---	---	60
23/05/2025	23:00-07:00	41	34	45	---	---	45
24/05/2025	07:00-19:00	45	45	75	56	48	70
24/05/2025	19:00-23:00	43	35	60	48	44	60
24/05/2025	23:00-07:00	43	35	45	41	35	45
25/05/2025	07:00-23:00	53	42	60	53	43	60
25/05/2025	23:00-07:00	42	42	45	---	---	45
26/05/2025	07:00-19:00	56	51	75	---	---	70
26/05/2025	19:00-23:00	40	33	60	35	25	60
26/05/2025	23:00-07:00	43	43	45	---	---	45
27/05/2025	07:00-19:00	51	48	75	37	37	70
27/05/2025	19:00-23:00	45	34	60	39	38	60
27/05/2025	23:00-07:00	---	---	45	32	32	45
28/05/2025	07:00-19:00	50	49	75	39	39	70
28/05/2025	19:00-23:00	37	35	60	38	33	60
28/05/2025	23:00-07:00	43	38	45	41	33	45
29/05/2025	07:00-19:00	53	47	75	52	46	70
29/05/2025	19:00-23:00	52	43	60	42	35	60
29/05/2025	23:00-07:00	41	41	45	43	36	45
30/05/2025	07:00-19:00	---	---	75	39	36	70
30/05/2025	19:00-23:00	41	37	60	43	36	60
30/05/2025	23:00-07:00	43	43	45	43	33	45
31/05/2025	07:00-19:00	57	50	75	---	---	70
31/05/2025	19:00-23:00	30	30	60	---	---	60
31/05/2025	23:00-07:00	45	40	45	41	30	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).