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 (June 2021)

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

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

Date of sampling	04/06/2021	18/06/2021
Total Residual Chlorine, mg/L	0.30	0.40