Table 4.6b           Calculated Action and Limit Levels for In-situ Monitoring    Parameters (Turbidity)

Case

Monitoring Stations

Water Depth

Action Level(1)

Limit Level(2)

Case 1

B30, B31, B32, B33, B34, B35 , WSD21, F4

Depth average

4.3

6.2

B10, B11, B12, B13, B14, B7, B8, B9, F5

7.2

7.9

B24, B25, B26, F1

5.0

6.9

WSD17, WSD9, WSD20, WSD18, WSD19, WSD7, WSD6

7.3

8.9

WSD10, WSD11, WSD12, WSD13, WSD15, WSD22

4.9

5.5

WSD4, WSD5

9.2

9.8

Case 2

B10, B11, B12, B13, B14, B7, B8, B9, F5

Depth average

4.9

5.7

B24, B25, B26, F1

2.2

2.4

WSD7, WSD9, WSD10, WSD11, WSD12, WSD13, WSD15, WSD17, WSD18, WSD19, WSD20, WSD22

5.1

5.4

WSD5, WSD6

5.7

6.0

Case 3

All Case 3’s stations

Depth average

7.3

7.9

Case 4

All Case 4’s stations

Depth average

4.9

5.7

Notes:

-       For turbidity, non-compliance of water quality limits occurs when monitoring result is higher than the limit levels.

1)   Baseline data or 120% of upstream control station’s turbidity at the same tide of the same day

2)   Baseline data or 130% of upstream control station’s turbidity at the same tide of the same day