NOISE

1. CONTINUOUS NOISE MONITORING DATA (OPERATION)

Site: Lamma Power Station Extension

Measurement Location: Ash Lagoon

Measurement Parameter: 30-min Leq (07:00-23:00 hrs and 23:00-07:00 hrs on next day)

NSR: Hung Shing Ye

Date	Time	Calculated Noise Level at NSR (dB(A))
Date	Time	Max	Avg
01/12/2017	07:00-23:00	51	47
01/12/2017	23:00-07:00	49	47
02/12/2017	07:00-23:00	51	49
02/12/2017	23:00-07:00	---	---
03/12/2017	07:00-23:00	47	47
03/12/2017	23:00-07:00	48	45
04/12/2017	07:00-23:00	---	---
04/12/2017	23:00-07:00	32	31
05/12/2017	07:00-23:00	46	43
05/12/2017	23:00-07:00	45	41
06/12/2017	07:00-23:00	48	46
06/12/2017	23:00-07:00	40	36
07/12/2017	07:00-23:00	51	48
07/12/2017	23:00-07:00	46	45
08/12/2017	07:00-23:00	54	50
08/12/2017	23:00-07:00	46	44
09/12/2017	07:00-23:00	57	55
09/12/2017	23:00-07:00	---	---
10/12/2017	07:00-23:00	29	29
10/12/2017	23:00-07:00	47	45
11/12/2017	07:00-23:00	57	54
11/12/2017	23:00-07:00	---	---
12/12/2017	07:00-23:00	56	52
12/12/2017	23:00-07:00	40	36
13/12/2017	07:00-23:00	57	52
13/12/2017	23:00-07:00	39	38
14/12/2017	07:00-23:00	54	51
14/12/2017	23:00-07:00	37	36
15/12/2017	07:00-23:00	50	47
15/12/2017	23:00-07:00	28	28
16/12/2017	07:00-23:00	48	43
16/12/2017	23:00-07:00	38	36
17/12/2017	07:00-23:00	38	35
17/12/2017	23:00-07:00	40	36
18/12/2017	07:00-23:00	47	45
18/12/2017	23:00-07:00	29	28
19/12/2017	07:00-23:00	46	45
19/12/2017	23:00-07:00	---	---
20/12/2017	07:00-23:00	45	43
20/12/2017	23:00-07:00	---	---
21/12/2017	07:00-23:00	---	---
21/12/2017	23:00-07:00	---	---
22/12/2017	07:00-23:00	---	---
22/12/2017	23:00-07:00	---	---
23/12/2017	07:00-23:00	47	47
23/12/2017	23:00-07:00	39	36
24/12/2017	07:00-23:00	---	---
24/12/2017	23:00-07:00	---	---
25/12/2017	07:00-23:00	---	---
25/12/2017	23:00-07:00	---	---
26/12/2017	07:00-23:00	38	38
26/12/2017	23:00-07:00	41	38
27/12/2017	07:00-23:00	49	46
27/12/2017	23:00-07:00	29	29
28/12/2017	07:00-23:00	---	---
28/12/2017	23:00-07:00	---	---
29/12/2017	07:00-23:00	---	---
29/12/2017	23:00-07:00	41	39
30/12/2017	07:00-23:00	50	49
30/12/2017	23:00-07:00	47	44
31/12/2017	07:00-23:00	38	34
31/12/2017	23:00-07:00	---	---

Note: “---“ represents the measured noise monitoring data lower than the established notional background level/discarded under strong wind.

2. CONTINUOUS NOISE MONITORING DATA (CONSTRUCTION)

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)

Date	Time	Calculated Noise Level at NSR at Long Tsai Tsuen/Hung Shing Ye (dB(A))		Calculated Noise Level at NSR at the school within Tai Wan San Tsuen (dB(A))
Date	Time	Max	Avg	Max	Avg
01/12/2017	07:00-19:00	51	46	46	37
01/12/2017	19:00-23:00	---	---	41	32
01/12/2017	23:00-07:00	44	33	38	32
02/12/2017	07:00-19:00	51	47	---	---
02/12/2017	19:00-23:00	---	---	36	32
02/12/2017	23:00-07:00	35	28	35	31
03/12/2017	07:00-23:00	48	41	49	36
03/12/2017	23:00-07:00	45	37	39	32
04/12/2017	07:00-19:00	---	---	40	38
04/12/2017	19:00-23:00	---	---	36	32
04/12/2017	23:00-07:00	45	36	45	33
05/12/2017	07:00-19:00	46	41	33	33
05/12/2017	19:00-23:00	50	44	45	37
05/12/2017	23:00-07:00	45	38	42	36
06/12/2017	07:00-19:00	48	44	40	36
06/12/2017	19:00-23:00	---	---	37	32
06/12/2017	23:00-07:00	45	36	40	34
07/12/2017	07:00-19:00	51	48	---	---
07/12/2017	19:00-23:00	25	25	52	36
07/12/2017	23:00-07:00	44	35	39	33
08/12/2017	07:00-19:00	54	47	---	---
08/12/2017	19:00-23:00	---	---	29	29
08/12/2017	23:00-07:00	45	39	37	31
09/12/2017	07:00-19:00	57	53	41	33
09/12/2017	19:00-23:00	---	---	41	37
09/12/2017	23:00-07:00	39	32	42	35
10/12/2017	07:00-23:00	46	38	48	34
10/12/2017	23:00-07:00	45	41	39	31
11/12/2017	07:00-19:00	57	53	38	35
11/12/2017	19:00-23:00	---	---	38	36
11/12/2017	23:00-07:00	34	28	40	32
12/12/2017	07:00-19:00	56	51	36	34
12/12/2017	19:00-23:00	47	43	41	34
12/12/2017	23:00-07:00	45	37	42	34
13/12/2017	07:00-19:00	57	51	49	42
13/12/2017	19:00-23:00	49	40	40	36
13/12/2017	23:00-07:00	45	41	43	37
14/12/2017	07:00-19:00	54	50	43	43
14/12/2017	19:00-23:00	---	---	34	28
14/12/2017	23:00-07:00	42	35	38	32
15/12/2017	07:00-19:00	50	46	---	---
15/12/2017	19:00-23:00	---	---	---	---
15/12/2017	23:00-07:00	37	31	40	33
16/12/2017	07:00-19:00	48	43	42	40
16/12/2017	19:00-23:00	44	35	46	35
16/12/2017	23:00-07:00	38	32	36	30
17/12/2017	07:00-23:00	28	28	50	34
17/12/2017	23:00-07:00	42	33	38	31
18/12/2017	07:00-19:00	47	43	33	33
18/12/2017	19:00-23:00	---	---	30	28
18/12/2017	23:00-07:00	43	35	40	34
19/12/2017	07:00-19:00	46	44	44	38
19/12/2017	19:00-23:00	37	32	41	33
19/12/2017	23:00-07:00	31	27	37	28
20/12/2017	07:00-19:00	45	42	32	32
20/12/2017	19:00-23:00	---	---	29	23
20/12/2017	23:00-07:00	---	---	17	17
21/12/2017	07:00-19:00	---	---	35	35
21/12/2017	19:00-23:00	---	---	43	31
21/12/2017	23:00-07:00	37	34	32	29
22/12/2017	07:00-19:00	---	---	47	41
22/12/2017	19:00-23:00	---	---	38	37
22/12/2017	23:00-07:00	36	34	45	33
23/12/2017	07:00-19:00	47	47	37	34
23/12/2017	19:00-23:00	---	---	38	32
23/12/2017	23:00-07:00	39	32	39	31
24/12/2017	07:00-23:00	52	37	53	35
24/12/2017	23:00-07:00	---	---	38	32
25/12/2017	07:00-23:00	45	39	53	35
25/12/2017	23:00-07:00	---	---	45	34
26/12/2017	07:00-23:00	38	33	45	36
26/12/2017	23:00-07:00	43	34	37	31
27/12/2017	07:00-19:00	49	44	40	35
27/12/2017	19:00-23:00	---	---	37	32
27/12/2017	23:00-07:00	38	34	37	34
28/12/2017	07:00-19:00	---	---	20	20
28/12/2017	19:00-23:00	---	---	51	34
28/12/2017	23:00-07:00	37	37	39	34
29/12/2017	07:00-19:00	---	---	40	40
29/12/2017	19:00-23:00	---	---	36	31
29/12/2017	23:00-07:00	44	37	39	31
30/12/2017	07:00-19:00	---	---	---	---
30/12/2017	19:00-23:00	51	48	38	32
30/12/2017	23:00-07:00	44	39	39	33
31/12/2017	07:00-23:00	58	34	40	34
31/12/2017	23:00-07:00	---	---	36	33

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) with construction noise permit.