Appendix E Continuous Noise Monitoring Results for April 2026

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)

9/7/2025 (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
1/04/2026	07:00-19:00	---	---	75	44	39	70
1/04/2026	19:00-23:00	37	37	60	53	45	60
1/04/2026	23:00-07:00	44	34	45	45	32	45
2/04/2026	07:00-19:00	42	39	75	37	35	70
2/04/2026	19:00-23:00	48	48	60	44	44	60
2/04/2026	23:00-07:00	42	37	45	38	33	45
3/04/2026	07:00-23:00	59	47	60	60	53	60
3/04/2026	23:00-07:00	43	31	45	45	36	45
4/04/2026	07:00-23:00	47	44	60	55	43	60
4/04/2026	23:00-07:00	26	26	45	45	38	45
5/04/2026	07:00-23:00	54	40	60	60	46	60
5/04/2026	23:00-07:00	32	32	45	45	41	45
6/04/2026	07:00-23:00	58	43	60	60	50	60
6/04/2026	23:00-07:00	36	36	45	45	37	45
7/04/2026	07:00-23:00	---	---	60	60	53	60
7/04/2026	23:00-07:00	43	34	45	44	34	45
8/04/2026	07:00-19:00	50	50	75	45	45	70
8/04/2026	19:00-23:00	---	---	60	---	---	60
8/04/2026	23:00-07:00	---	---	45	---	---	45
9/04/2026	07:00-19:00	---	---	75	60	59	70
9/04/2026	19:00-23:00	---	---	60	58	51	60
9/04/2026	23:00-07:00	---	---	45	45	42	45
10/04/2026	07:00-19:00	---	---	75	56	50	70
10/04/2026	19:00-23:00	---	---	60	54	45	60
10/04/2026	23:00-07:00	---	---	45	45	40	45
11/04/2026	07:00-19:00	---	---	75	60	56	70
11/04/2026	19:00-23:00	---	---	60	60	57	60
11/04/2026	23:00-07:00	---	---	45	45	45	45
12/04/2026	07:00-23:00	---	---	60	60	54	60
12/04/2026	23:00-07:00	---	---	45	45	43	45
13/04/2026	07:00-19:00	42	42	75	59	54	70
13/04/2026	19:00-23:00	41	41	60	60	53	60
13/04/2026	23:00-07:00	45	40	45	45	39	45
14/04/2026	07:00-19:00	---	---	75	58	52	70
14/04/2026	19:00-23:00	---	---	60	50	42	60
14/04/2026	23:00-07:00	43	43	45	45	37	45
15/04/2026	07:00-19:00	41	41	75	56	50	70
15/04/2026	19:00-23:00	38	38	60	55	48	60
15/04/2026	23:00-07:00	43	43	45	45	41	45
16/04/2026	07:00-19:00	43	41	75	60	52	70
16/04/2026	19:00-23:00	37	37	60	56	48	60
16/04/2026	23:00-07:00	42	30	45	42	35	45
17/04/2026	07:00-19:00	43	37	75	57	40	70
17/04/2026	19:00-23:00	43	43	60	56	40	60
17/04/2026	23:00-07:00	43	34	45	40	34	45
18/04/2026	07:00-19:00	53	48	75	45	41	70
18/04/2026	19:00-23:00	---	---	60	38	32	60
18/04/2026	23:00-07:00	38	32	45	40	33	45
19/04/2026	07:00-23:00	55	43	60	60	48	60
19/04/2026	23:00-07:00	43	39	45	44	36	45
20/04/2026	07:00-19:00	54	45	75	63	50	70
20/04/2026	19:00-23:00	34	27	60	52	43	60
20/04/2026	23:00-07:00	41	36	45	45	41	45
21/04/2026	07:00-19:00	55	47	75	57	48	70
21/04/2026	19:00-23:00	46	46	60	51	40	60
21/04/2026	23:00-07:00	45	44	45	45	41	45
22/04/2026	07:00-19:00	53	49	75	59	49	70
22/04/2026	19:00-23:00	41	37	60	60	51	60
22/04/2026	23:00-07:00	41	38	45	44	37	45
23/04/2026	07:00-19:00	47	47	75	60	51	70
23/04/2026	19:00-23:00	40	40	60	51	31	60
23/04/2026	23:00-07:00	45	36	45	45	34	45
24/04/2026	07:00-19:00	---	---	75	67	53	70
24/04/2026	19:00-23:00	47	33	60	57	43	60
24/04/2026	23:00-07:00	39	36	45	45	40	45
25/04/2026	07:00-19:00	54	48	75	58	50	70
25/04/2026	19:00-23:00	43	34	60	60	52	60
25/04/2026	23:00-07:00	36	33	45	45	37	45
26/04/2026	07:00-23:00	57	42	60	59	49	60
26/04/2026	23:00-07:00	28	28	45	45	38	45
27/04/2026	07:00-19:00	---	---	75	59	55	70
27/04/2026	19:00-23:00	44	44	60	60	55	60
27/04/2026	23:00-07:00	44	41	45	44	40	45
28/04/2026	07:00-19:00	56	54	75	61	54	70
28/04/2026	19:00-23:00	37	34	60	60	52	60
28/04/2026	23:00-07:00	39	37	45	45	37	45
29/04/2026	07:00-19:00	54	50	75	56	44	70
29/04/2026	19:00-23:00	38	30	60	47	40	60
29/04/2026	23:00-07:00	43	34	45	42	34	45
30/04/2026	07:00-19:00	54	49	75	52	49	70
30/04/2026	19:00-23:00	30	30	60	54	43	60
30/04/2026	23:00-07:00	---	---	45	44	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).

c. From 8 to 13 April, the Ash Lagoon Station was disconnected from the analog signal input. Data transmission resumed on 13 April after on-site repairs were completed.