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 (February 2007)

Date	Maximum Outlet Temperature Rise (Deg. Celsius)
01/02/2007	8.8
02/02/2007	8.8
03/02/2007	8.4
04/02/2007	7.6
05/02/2007	8.8
06/02/2007	8.4
07/02/2007	8.9
08/02/2007	8.5
09/02/2007	8.5
10/02/2007	8.6
11/02/2007	7.2
12/02/2007	7.9
13/02/2007	9.0
14/02/2007	9.0
15/02/2007	8.0
16/02/2007	8.6
17/02/2007	N.A.*
18/02/2007	N.A.*
19/02/2007	N.A.*
20/02/2007	N.A.*
21/02/2007	8.5
22/02/2007	8.5
23/02/2007	8.6
24/02/2007	8.4
25/02/2007	8.8
26/02/2007	8.8
27/02/2007	8.7
28/02/2007	8.8

Total Residual Chlorine Level at C.W. Outfall No. 3 (February 2007)

Date of sampling	02/02/2007	15/02/2007
Total Residual Chlorine, mg/L	0.25	0.30

Note:

1. * Unit L9 was not on load.