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 (October 2025)

 

Date

Maximum Outlet Temperature Rise

(Deg. Celsius)

1/10/2025

6.2

2/10/2025

6.3

3/10/2025

6.2

4/10/2025

5.7

5/10/2025

6.1

6/10/2025

6.2

7/10/2025

6.4

8/10/2025

7.1

9/10/2025

7.0

10/10/2025

7.0

11/10/2025

7.0

12/10/2025

6.3

13/10/2025

6.8

14/10/2025

6.8

15/10/2025

6.8

16/10/2025

6.8

17/10/2025

6.3

18/10/2025

6.7

19/10/2025

6.3

20/10/2025

6.2

21/10/2025

5.9

22/10/2025

6.2

23/10/2025

5.5

24/10/2025

6.3

25/10/2025

6.4

26/10/2025

5.8

27/10/2025

6.9

28/10/2025

6.9

29/10/2025

6.3

30/10/2025

7.0

31/10/2025

7.2

 

 

Maximum Outlet Temperature Rise (Deg. Celsius) of Cooling Water at C.W. Outfall No.4 Serving Unit L12

 

Weighted by Flowrates of Individual Streams (October 2025)

 

Date

Maximum Outlet Temperature Rise

(Deg. Celsius)

1/10/2025

6.8

2/10/2025

6.8

3/10/2025

6.8

4/10/2025

6.4

5/10/2025

*

6/10/2025

5.8

7/10/2025

6.7

8/10/2025

6.8

9/10/2025

6.8

10/10/2025

6.7

11/10/2025

6.8

12/10/2025

6.7

13/10/2025

6.8

14/10/2025

6.7

15/10/2025

6.7

16/10/2025

6.7

17/10/2025

6.8

18/10/2025

6.7

19/10/2025

6.7

20/10/2025

6.4

21/10/2025

6.3

22/10/2025

6.6

23/10/2025

6.2

24/10/2025

6.7

25/10/2025

6.6

26/10/2025

6.2

27/10/2025

6.1

28/10/2025

6.6

29/10/2025

5.9

30/10/2025

6.1

31/10/2025

6.7

 

Total Residual Chlorine Level at C.W. Outfall No. 3 Serving Units L9, L10 & L11 (October 2025)

 

Date of sampling

10/10

24/10

Total Residual Chlorine, mg/L

0.30

0.30

 

Total Residual Chlorine Level at C.W. Outfall No. 4 Serving Units L12 (October 2025)

 

Date of sampling

10/10

24/10

Total Residual Chlorine, mg/L

0.20

0.30