Appendix E Continuous Noise Monitoring Results for April 2017

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 Used: B&K 2250 sound level meters and B&K 4231 sound

level calibrator

Last Calibration Date: B&K 2250 sound level meters - 09/11/2015 (Ching Lam)

19/08/2016 (Ash Lagoon)

B&K 4231 calibrator - 03/04/2017

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
01/04/2017	07:00-19:00	---	---	75	---	---	70
01/04/2017	19:00-23:00	---	---	60	26	26	60
01/04/2017	23:00-07:00	---	---	45	---	---	45
02/04/2017	07:00-23:00	---	---	60	---	---	60
02/04/2017	23:00-07:00	---	---	45	25	20	45
03/04/2017	07:00-19:00	---	---	75	---	---	70
03/04/2017	19:00-23:00	---	---	60	31	31	60
03/04/2017	23:00-07:00	---	---	45	22	22	45
04/04/2017	07:00-23:00	---	---	60	19	19	60
04/04/2017	23:00-07:00	---	---	45	23	21	45
05/04/2017	07:00-19:00	---	---	75	---	---	70
05/04/2017	19:00-23:00	---	---	60	---	---	60
05/04/2017	23:00-07:00	---	---	45	15	15	45
06/04/2017	07:00-19:00	---	---	75	---	---	70
06/04/2017	19:00-23:00	---	---	60	---	---	60
06/04/2017	23:00-07:00	---	---	45	29	26	45
07/04/2017	07:00-19:00	---	---	75	---	---	75
07/04/2017	19:00-23:00	---	---	60	22	22	60
07/04/2017	23:00-07:00	---	---	45	---	---	45
08/04/2017	07:00-19:00	---	---	75	---	---	70
08/04/2017	19:00-23:00	---	---	60	---	---	60
08/04/2017	23:00-07:00	---	---	45	32	32	45
09/04/2017	07:00-23:00	---	---	60	32	32	60
09/04/2017	23:00-07:00	---	---	45	35	35	45
10/04/2017	07:00-19:00	---	---	75	---	---	70
10/04/2017	19:00-23:00	---	---	60	26	23	60
10/04/2017	23:00-07:00	---	---	45	---	---	45
11/04/2017	07:00-19:00	---	---	75	---	---	70
11/04/2017	19:00-23:00	---	---	60	---	---	60
11/04/2017	23:00-07:00	---	---	45	---	---	45
12/04/2017	07:00-19:00	---	---	75	---	---	70
12/04/2017	19:00-23:00	---	---	60	---	---	60
12/04/2017	23:00-07:00	---	---	45	27	27	45
13/04/2017	07:00-19:00	---	---	75	---	---	70
13/04/2017	19:00-23:00	---	---	60	15	15	60
13/04/2017	23:00-07:00	---	---	45	32	27	45
14/04/2017	07:00-23:00	---	---	60	---	---	60
14/04/2017	23:00-07:00	---	---	45	31	27	45
15/04/2017	07:00-23:00	---	---	60	---	---	60
15/04/2017	23:00-07:00	---	---	45	30	27	45
16/04/2017	07:00-23:00	---	---	60	36	26	60
16/04/2017	23:00-07:00	---	---	45	34	32	45
17/04/2017	07:00-23:00	---	---	60	39	34	60
17/04/2017	23:00-07:00	39	26	45	30	25	45
18/04/2017	07:00-19:00	54	46	75	35	28	70
18/04/2017	19:00-23:00	34	33	60	29	28	60
18/04/2017	23:00-07:00	---	---	45	26	23	45
19/04/2017	07:00-19:00	50	42	75	28	28	70
19/04/2017	19:00-23:00	33	33	60	28	28	60
19/04/2017	23:00-07:00	34	28	45	29	23	45
20/04/2017	07:00-19:00	47	45	75	---	---	70
20/04/2017	19:00-23:00	---	---	60	---	---	60
20/04/2017	23:00-07:00	33	31	45	28	26	45
21/04/2017	07:00-19:00	52	47	75	48	39	70
21/04/2017	19:00-23:00	29	27	60	---	---	60
21/04/2017	23:00-07:00	45	26	45	39	21	45
22/04/2017	07:00-19:00	---	---	75	---	---	70
22/04/2017	19:00-23:00	17	17	60	---	---	60
22/04/2017	23:00-07:00	45	27	45	30	22	45
23/04/2017	07:00-23:00	34	28	60	32	25	60
23/04/2017	23:00-07:00	41	38	45	36	33	45
24/04/2017	07:00-19:00	53	43	75	39	35	70
24/04/2017	19:00-23:00	39	33	60	34	28	60
24/04/2017	23:00-07:00	39	29	45	34	25	45
25/04/2017	07:00-19:00	50	48	75	40	39	70
25/04/2017	19:00-23:00	19	19	60	42	35	60
25/04/2017	23:00-07:00	43	29	45	37	24	45
26/04/2017	07:00-19:00	42	41	75	37	36	70
26/04/2017	19:00-23:00	37	36	60	39	31	60
26/04/2017	23:00-07:00	---	---	45	39	27	45
27/04/2017	07:00-19:00	55	40	75	32	32	70
27/04/2017	19:00-23:00	37	32	60	31	27	60
27/04/2017	23:00-07:00	40	31	45	38	26	45
28/04/2017	07:00-19:00	54	50	75	29	29	70
28/04/2017	19:00-23:00	43	39	60	37	33	60
28/04/2017	23:00-07:00	41	37	45	36	32	45
29/04/2017	07:00-19:00	54	43	75	36	36	70
29/04/2017	19:00-23:00	41	33	60	37	27	60
29/04/2017	23:00-07:00	---	---	45	31	23	45
30/04/2017	07:00-23:00	---	---	60	19	19	60
30/04/2017	23:00-07:00	---	---	45	24	22	45

Note:

a. “---“ represents the measured noise monitoring data lower than the established notional background level, particularly for the period of 01/04/2017 07:00 – 17/04/2017 23:00. The Ash Lagoon noise monitoring station was in normal operation but there were no data of calculated noise level at NSR at Long Tsai Tsuen/Hung Shing Ye.

b. Continuous noise monitoring was 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) under construction noise permit.