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 (October 2021)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
1/10/2021	7.6
2/10/2021	7.6
3/10/2021	7.5
4/10/2021	7.5
5/10/2021	7.6
6/10/2021	7.6
7/10/2021	7.5
8/10/2021	7.4
9/10/2021	7.4
10/10/2021	7.5
11/10/2021	7.5
12/10/2021	7.4
13/10/2021	7.3
14/10/2021	7.3
15/10/2021	7.3
16/10/2021	7.3
17/10/2021	7.3
18/10/2021	7.2
19/10/2021	7.4
20/10/2021	7.4
21/10/2021	7.4
22/10/2021	7.2
23/10/2021	7.3
24/10/2021	7.3
25/10/2021	7.3
26/10/2021	7.3
27/10/2021	7.3
28/10/2021	7.3
29/10/2021	7.3
30/10/2021	7.3
31/10/2021	7.3

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

Date of sampling	07/10/2021	22/10/2021
Total Residual Chlorine, mg/L	0.30	0.30