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 & L11 Condensers

Weighted by Flowrates of Individual Streams (December 2023)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
1/12/2023	5.6
2/12/2023	5.6
3/12/2023	5.7
4/12/2023	6.0
5/12/2023	6.0
6/12/2023	6.0
7/12/2023	6.0
8/12/2023	6.0
9/12/2023	6.0
10/12/2023	5.2
11/12/2023	6.0
12/12/2023	5.0
13/12/2023	5.0
14/12/2023	5.0
15/12/2023	4.9
16/12/2023	5.0
17/12/2023	5.5
18/12/2023	5.8
19/12/2023	5.6
20/12/2023	5.6
21/12/2023	5.6
22/12/2023	5.5
23/12/2023	5.1
24/12/2023	4.5
25/12/2023	4.4
26/12/2023	4.4
27/12/2023	5.0
28/12/2023	5.1
29/12/2023	5.0
30/12/2023	5.0
31/12/2023	4.4

Total Residual Chlorine Level at C.W. Outfall No. 3 (December 2023)

Date of sampling	08/12	20/12
Total Residual Chlorine, mg/L	0.20	0.30