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 (September 2021)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
1/9/2021	7.4
2/9/2021	7.4
3/9/2021	8.5
4/9/2021	8.6
5/9/2021	8.6
6/9/2021	7.3
7/9/2021	7.3
8/9/2021	7.4
9/9/2021	7.4
10/9/2021	7.4
11/9/2021	7.4
12/9/2021	7.4
13/9/2021	7.4
14/9/2021	7.4
15/9/2021	7.4
16/9/2021	7.4
17/9/2021	7.4
18/9/2021	7.4
19/9/2021	7.4
20/9/2021	7.4
21/9/2021	7.3
22/9/2021	7.4
23/9/2021	7.4
24/9/2021	7.3
25/9/2021	7.3
26/9/2021	7.3
27/9/2021	7.4
28/9/2021	7.4
29/9/2021	7.4
30/9/2021	7.4

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

Date of sampling	10/09/2021	24/09/2021
Total Residual Chlorine, mg/L	0.40	0.30