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 Condensers

Weighted by Flowrates of Individual Streams (June 2010)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
1/6/2010	*
2/6/2010	*
3/6/2010	*
4/6/2010	*
5/6/2010	*
6/6/2010	*
7/6/2010	*
8/6/2010	*
9/6/2010	*
10/6/2010	*
11/6/2010	8.8
12/6/2010	8.9
13/6/2010	8.8
14/6/2010	*
15/6/2010	8.6
16/6/2010	8.7
17/6/2010	7.4
18/6/2010	*
19/6/2010	6.9
20/6/2010	7.0
21/6/2010	*
22/6/2010	7.0
23/6/2010	8.2
24/6/2010	8.2
25/6/2010	8.0
26/6/2010	7.6
27/6/2010	*
28/6/2010	*
29/6/2010	8.3
30/6/2010	8.3

Note: * Unit L9 was not on load.

Total Residual Chlorine Level at C.W. Outfall No. 3 (June 2010)

Date of sampling	15/06/2010	29/06/2010
Total Residual Chlorine, mg/L	0.40	0.40