Lamma Power Station Extension - Summary Results on Water Quality Monitoring

Maximum Outlet Temperature Rise (Deg. Celsius) of Cooling Water at C.W. Outfall No.3 Serving L9 & L10 Condensers

Weighted by Flowrates of Individual Streams (January 2022)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
1/1/2022	6.5
2/1/2022	6.5
3/1/2022	7.4
4/1/2022	7.4
5/1/2022	7.4
6/1/2022	6.6
7/1/2022	6.6
8/1/2022	6.6
9/1/2022	6.7
10/1/2022	7.3
11/1/2022	7.1
12/1/2022	6.8
13/1/2022	7.2
14/1/2022	7.0
15/1/2022	7.3
16/1/2022	6.6
17/1/2022	7.3
18/1/2022	7.3
19/1/2022	7.1
20/1/2022	7.0
21/1/2022	7.1
22/1/2022	6.5
23/1/2022	6.5
24/1/2022	7.0
25/1/2022	7.0
26/1/2022	6.9
27/1/2022	7.3
28/1/2022	7.3
29/1/2022	7.2
30/1/2022	6.7
31/1/2022	6.6

Total Residual Chlorine Level at C.W. Outfall No. 3 (January 2022)

Date of sampling	14/01/2022	28/01/2022
Total Residual Chlorine, mg/L	0.30	0.30