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 (June 2022)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
1/6/2022	7.5
2/6/2022	7.4
3/6/2022	7.4
4/6/2022	7.4
5/6/2022	6.6
6/6/2022	6.3
7/6/2022	7.0
8/6/2022	7.0
9/6/2022	7.0
10/6/2022	7.0
11/6/2022	7.0
12/6/2022	6.6
13/6/2022	7.1
14/6/2022	7.1
15/6/2022	7.1
16/6/2022	7.1
17/6/2022	7.1
18/6/2022	7.1
19/6/2022	6.3
20/6/2022	6.0
21/6/2022	6.0
22/6/2022	6.5
23/6/2022	6.4
24/6/2022	6.4
25/6/2022	6.2
26/6/2022	6.1
27/6/2022	5.4
28/6/2022	5.1
29/6/2022	5.9
30/6/2022	5.4

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

Date of sampling	01/06/2022	17/06/2022	30/06/2022
Total Residual Chlorine, mg/L	0.40	0.30	0.30