Appendix E.1 Continuous Noise Monitoring Results for April 2004

Site: Lamma Power Station Extension – Site Formation &

Superstructure

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: Rion NA-27 (Ash Lagoon) and B&K 2238F (Ching

Lam) sound level meters and Rion NC-74 sound

level calibrator

Last Calibration Date: Rion NA-27 sound level meter - 25/02/2003

B&K 2238F sound level meter - 19/12/2002

Rion NC-74 calibrator - 23/03/2004

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
01/04/2004	07:00-19:00	46	42	75	37	34	70
01/04/2004	19:00-23:00	45	44	60	--	--	60
01/04/2004	23:00-07:00	44	31	45	--	--	45
02/04/2004	07:00-19:00	47	45	75	41	37	70
02/04/2004	19:00-23:00	46	44	60	41	39	60
02/04/2004	23:00-07:00	44	35	45	39	31	45
03/04/2004	07:00-19:00	51	46	75	44	37	70
03/04/2004	19:00-23:00	44	43	60	40	37	60
03/04/2004	23:00-07:00	43	34	45	38	28	45
04/04/2004	07:00-23:00	38	34	60	33	29	60
04/04/2004	23:00-07:00	44	37	45	39	32	45
05/04/2004	07:00-23:00	50	48	60	40	36	60
05/04/2004	23:00-07:00	36	30	45	32	26	45
06/04/2004	07:00-19:00	50	46	75	38	34	70
06/04/2004	19:00-23:00	47	46	60	40	38	60
06/04/2004	23:00-07:00	23	23	45	18	18	45
07/04/2004	07:00-19:00	50	46	75	40	36	70
07/04/2004	19:00-23:00	46	45	60	41	39	60
07/04/2004	23:00-07:00	44	30	45	39	26	45
08/04/2004	07:00-19:00	49	46	75	37	34	70
08/04/2004	19:00-23:00	45	44	60	40	39	60
08/04/2004	23:00-07:00	30	25	45	26	21	45
09/04/2004	07:00-23:00	50	47	60	42	39	60
09/04/2004	23:00-07:00	41	36	45	37	32	45
10/04/2004	07:00-23:00	47	46	60	42	37	60
10/04/2004	23:00-07:00	41	32	45	30	25	45
11/04/2004	07:00-23:00	49	46	60	41	36	60
11/04/2004	23:00-07:00	37	34	45	32	29	45
12/04/2004	07:00-23:00	48	45	60	41	37	60
12/04/2004	23:00-07:00	--	--	45	--	--	45
13/04/2004	07:00-19:00	52	48	75	44	38	70
13/04/2004	19:00-23:00	44	44	60	39	38	60
13/04/2004	23:00-07:00	45	41	45	41	36	45
14/04/2004	07:00-19:00	50	46	75	43	40	70
14/04/2004	19:00-23:00	45	44	60	40	39	60
14/04/2004	23:00-07:00	39	34	45	34	29	45
15/04/2004	07:00-19:00	52	47	75	44	41	70
15/04/2004	19:00-23:00	45	45	60	41	40	60
15/04/2004	23:00-07:00	34	34	45	29	29	45
16/04/2004	07:00-19:00	51	48	75	45	40	70
16/04/2004	19:00-23:00	44	43	60	39	39	60
16/04/2004	23:00-07:00	44	41	45	39	36	45
17/04/2004	07:00-19:00	48	44	75	44	39	70
17/04/2004	19:00-23:00	25	25	60	20	20	60
17/04/2004	23:00-07:00	36	29	45	31	25	45
18/04/2004	07:00-23:00	48	45	60	42	38	60
18/04/2004	23:00-07:00	36	31	45	32	26	45
19/04/2004	07:00-19:00	49	44	75	42	39	70
19/04/2004	19:00-23:00	45	45	60	41	40	60
19/04/2004	23:00-07:00	25	25	45	20	20	45
20/04/2004	07:00-19:00	48	45	75	42	39	70
20/04/2004	19:00-23:00	43	42	60	39	37	60
20/04/2004	23:00-07:00	42	35	45	37	30	45
21/04/2004	07:00-19:00	50	45	75	44	40	70
21/04/2004	19:00-23:00	47	43	60	42	39	60
21/04/2004	23:00-07:00	31	26	45	27	22	45
22/04/2004	07:00-19:00	48	43	75	41	38	70
22/04/2004	19:00-23:00	44	43	60	39	39	60
22/04/2004	23:00-07:00	44	36	45	39	31	45
23/04/2004	07:00-19:00	48	43	75	44	38	70
23/04/2004	19:00-23:00	44	44	60	40	39	60
23/04/2004	23:00-07:00	43	35	45	38	30	45
24/04/2004	07:00-19:00	47	44	75	41	38	70
24/04/2004	19:00-23:00	45	44	60	40	38	60
24/04/2004	23:00-07:00	41	36	45	36	31	45
25/04/2004	07:00-23:00	49	46	60	43	38	60
25/04/2004	23:00-07:00	33	30	45	28	25	45
26/04/2004	07:00-19:00	50	43	75	41	36	70
26/04/2004	19:00-23:00	43	43	60	39	38	60
26/04/2004	23:00-07:00	34	32	45	30	28	45
27/04/2004	07:00-19:00	51	46	75	46	40	70
27/04/2004	19:00-23:00	45	44	60	41	39	60
27/04/2004	23:00-07:00	30	26	45	25	22	45
28/04/2004	07:00-19:00	51	48	75	45	42	70
28/04/2004	19:00-23:00	44	43	60	39	38	60
28/04/2004	23:00-07:00	32	29	45	27	24	45
29/04/2004	07:00-19:00	48	44	75	43	39	70
29/04/2004	19:00-23:00	44	43	60	39	39	60
29/04/2004	23:00-07:00	09	09	45	05	05	45
30/04/2004	07:00-19:00	53	49	75	48	43	70
30/04/2004	19:00-23:00	43	43	60	39	38	60
30/04/2004	23:00-07:00	31	29	45	26	24	45

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

Appendix E.2 Manual Noise Monitoring Results for April 2004

The hoarding works for the construction of transmission system at Pak Kok Tsui were completed on 11/5/2002. The dredging work for the formation of underwater trenches would tentatively commence in May 2004. As there was no construction work in April 2004, manual noise measurements at Pak Kok Tsui residences was suspended in this reporting month.