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 (December 2021)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
1/12/2021	7.2
2/12/2021	7.2
3/12/2021	7.2
4/12/2021	7.2
5/12/2021	7.2
6/12/2021	7.3
7/12/2021	7.3
8/12/2021	7.2
9/12/2021	7.3
10/12/2021	7.4
11/12/2021	7.0
12/12/2021	7.2
13/12/2021	7.3
14/12/2021	7.4
15/12/2021	7.3
16/12/2021	7.3
17/12/2021	7.1
18/12/2021	7.3
19/12/2021	6.9
20/12/2021	7.2
21/12/2021	7.2
22/12/2021	7.8
23/12/2021	7.2
24/12/2021	7.3
25/12/2021	6.9
26/12/2021	6.7
27/12/2021	7.2
28/12/2021	7.2
29/12/2021	7.2
30/12/2021	7.2
31/12/2021	7.3

Total Residual Chlorine Level at C.W. Outfall No. 3 (December 2021)

Date of sampling	01/12/2021	15/12/2021	31/12/2021
Total Residual Chlorine, mg/L	0.40	0.30	0.30