Date: 21/5/2001  
Weather: Cloudy
Sea Condition: Moderate
Tide: Mid-Flood
 
Water Quality Monitoring Result
Location Time Depth (m) Temp. (oC) Salinity (ppt) pH D.O. Sat. (%) D.O. (mg/L) Turbidity (NTU) S.S. (mg/L) NH3-N (mg/L) TIN (mg/L)
Value DA Value DA Value DA Value DA Value DA
SR1 19:08 Surface 1 26.5 27.5 8.22 93.5 6.80 6.67 3.2 3.4 8.1 8.1 0.006 0.005 0.52 0.37
26.5 27.6 8.22 93.5 6.81 3.1
Middle 13.5 26.4 30.5 8.21 91.2 6.54 3.0 10.1 0.005 0.30
26.4 30.6 8.21 91.0 6.53 3.0
Bottom 26 26.1 31.9 8.22 89.4 6.40 6.39 4.2 6.1 0.005 0.30
26.1 32.0 8.23 89.1 6.38 4.1
Other Observations: Nil
SR2 18:52 Surface 1 26.5 26.3 8.19 88.9 5.99 6.32 4.2 4.4 8.5 8.9 0.006 0.005 0.54 0.43
26.5 26.3 8.20 89.1 5.99 3.9
Middle 5.5 26.4 27.1 8.22 91.2 6.67 4.6 7.1 0.005 0.51
26.6 29.1 8.20 91.3 6.61 4.3
Bottom 10 26.2 30.4 8.19 90.6 6.49 6.51 4.8 11.1 0.004 0.25
26.3 30.8 8.20 90.7 6.53 4.4
Other Observations: Nil
SR3 18:35 Surface 1 27.3 28.4 8.33 99.7 6.70 6.78 7.0 8.9 7.7 12.6 N.A. N.A. N.A. N.A.
27.3 28.4 8.33 99.9 6.71 7.1
Middle 4.5 27.1 29.5 8.30 102.4 6.87 8.9 9.9 N.A. N.A.
27.1 29.6 8.31 102.1 6.85 8.8
Bottom 7.5 26.7 31.3 8.26 94.1 6.42 6.41 10.6 20.1 N.A. N.A.
26.7 31.3 8.25 94.0 6.40 10.9
Other Observations: Four dredgers at 50m & 100m
SR4 18:15 Surface 1 27.9 26.7 8.45 114.5 7.68 7.96 6.5 10.3 6.7 7.1 <0.001 0.002* 0.33 0.30
27.9 26.8 8.45 114.4 7.66 6.4
Middle 4 27.4 27.3 8.37 120.3 8.25 11.2 5.5 0.002 0.31
27.4 27.3 8.36 120.0 8.24 11.2
Bottom 6.5 26.7 31.1 8.27 104.5 8.32 8.31 13.1 9.1 0.002 0.26
26.7 31.2 8.25 104.4 8.30 13.3
Other Observations: Nil
SR5 18:08 Surface 1 27.7 28.5 8.34 97.3 6.38 6.71 8.1 11.0 7.9 9.9 0.001 0.001 0.30 0.31
27.7 28.4 8.32 96.8 6.34 8.2
Middle 4 26.1 32.7 8.24 102.0 7.08 11.0 10.7 0.001 0.31
26.1 32.7 8.23 101.6 7.02 11.1
Bottom 6.5 25.6 33.5 8.21 92.5 6.56 6.55 13.6 11.1 0.001 0.31
26.7 33.5 8.20 92.4 6.54 13.7
Other Observations: Nil
SR6 17:52 Surface 1 27.3 28.5 8.26 91.4 6.18 6.19 13.9 12.4 6.1 8.0 0.004 0.003 0.38 0.37
27.3 28.4 8.24 91.1 6.17 13.8
Middle 5 26.3 32.1 8.23 91.5 6.22 10.3 9.9 0.003 0.38
26.3 32.2 8.23 91.4 6.20 10.0
Bottom 9 25.5 34.0 8.21 89.2 6.01 6.01 13.4 8.1 0.003 0.35
25.5 34.1 8.20 89.0 6.00 13.1
Other Observations: Nil
SR7 17:40 Surface 1 27.4 27.7 8.33 99.0 6.58 6.75 6.0 6.0 9.1 9.3 0.002 0.001 0.34 0.24
27.4 27.8 8.32 98.9 6.57 6.2
Middle 11 26.2 32.9 8.26 101.9 6.91 5.1 7.3 0.001 0.34
26.2 33.0 8.26 102.0 6.92 5.0
Bottom 21 25.3 34.2 8.21 90.6 6.17 6.18 6.9 11.6 0.001 0.05
25.3 34.1 8.21 90.8 6.18 6.7
Other Observations: Nil
C1 15:40 Surface 1 26.4 29.4 7.92 91.2 6.56 6.48 7.1 7.5 10.2 11.1 0.003 0.003 0.43 0.35
26.5 28.9 7.93 90.9 6.55 7.1
Middle 12 25.9 31.6 7.92 88.8 6.41 8.4 11.0 0.003 0.41
25.9 31.7 7.92 88.4 6.38 8.4
Bottom 22.5 25.7 32.9 7.94 86.9 6.18 6.19 7.1 12.2 0.003 0.20
25.7 32.9 7.95 86.9 6.20 7.1
Other Observations: Nil
C2 19:25 Surface 1 26.1 26.3 8.20 91.7 6.89 6.68 17.2 15.6 5.6 9.7 0.006 0.006 0.50 0.44
26.1 26.3 8.20 91.3 6.84 17.2
Middle 13.5 25.8 32.1 8.23 89.3 6.51 9.5 10.2 0.006 0.49
25.8 32.1 8.23 89.3 6.46 9.5
Bottom 26 25.5 34.0 8.24 88.6 6.34 6.34 20.2 13.4 0.005 0.33
25.5 34.0 8.23 88.8 6.33 20.2
Other Observations: Nil
C3 16:10 Surface 1 26.4 27.6 8.16 93.6 6.89 6.66 5.1 4.6 7.6 8.7 0.006 0.005 0.66 0.50
26.4 26.7 8.15 92.7 6.82 5.1
Middle 4.5 26.4 28.0 8.13 90.6 6.48 4.3 9.2 0.005 0.43
26.3 28.6 8.12 89.5 6.46 4.3
Bottom 7.5 26.3 29.9 8.12 89.6 6.41 6.39 4.5 9.2 0.005 0.40
26.3 30.0 8.12 88.9 6.37 4.5
Other Observations: Nil
C4 16:40 Surface 1 27.2 29.0 8.22 90.2 6.08 6.07 10.8 6.1 7.8 6.9 0.004 0.004 0.34 0.34
27.2 29.0 8.22 90.2 6.09 10.8
Middle 6 27.0 29.3 8.20 89.1 6.13 2.9 4.4 0.004 0.34
26.9 29.3 8.20 88.5 5.99 2.9
Bottom 11 26.2 31.6 8.17 88.0 5.99 6.00 4.7 8.6 0.004 0.34
26.1 31.8 8.17 88.0 6.00 4.7
Other Observations: Nil
C5 17:20 Surface 1 27.4 27.5 8.35 102.9 6.59 6.91 8.3 8.0 12.2 12.3 0.001 0.002 0.33 0.16
27.4 27.5 8.36 103.0 6.60 8.3
Middle 11.5 26.1 32.9 8.24 104.4 7.24 8.7 12.6 0.003 0.10
26.0 32.9 8.25 104.3 7.22 8.7
Bottom 22 25.3 34.2 8.20 89.5 6.10 6.10 7.0 12.2 0.002 0.06
25.3 34.2 8.21 89.4 6.09 7.0
Other Observations: Nil
* Contains sample results < detection limit but assumed to be at the detection limit for the sake of computation.
Date: 21/5/2001  
Weather: Cloudy
Sea Condition: Moderate
Tide: Mid-Ebb
 
Water Quality Monitoring Result
Location Time Depth (m) Temp. (oC) Salinity (ppt) pH D.O. Sat. (%) D.O. (mg/L) Turbidity (NTU) S.S. (mg/L) NH3-N (mg/L) TIN (mg/L)
Value DA Value DA Value DA Value DA Value DA
SR1 13:50 Surface 1 26.7 29.4 8.09 88.2 6.02 6.08 9.1 10.9 5.0 11.3 0.005 0.005 0.36 0.32
26.7 29.4 8.08 88.3 6.04 8.2
Middle 13 26.1 30.6 8.03 88.4 6.14 14.5 12.8 0.005 0.33
26.1 30.6 8.03 88.6 6.13 13.2
Bottom 25 25.9 32.8 8.02 83.6 5.84 5.84 9.9 16.0 0.004 0.28
25.8 32.8 8.02 83.7 5.84 10.4
Other Observations: Nil
SR2 13:30 Surface 1 26.5 29.1 8.05 89.4 6.12 6.01 2.2 2.4 10.6 10.5 0.004 0.004 0.36 0.35
26.5 29.1 8.05 89.4 6.12 2.2
Middle 5.5 26.3 29.5 8.02 86.1 5.90 1.7 14.4 0.004 0.36
26.3 29.5 8.02 85.7 5.90 1.7
Bottom 10 26.1 30.0 8.01 82.2 5.62 5.63 3.5 6.6 0.004 0.34
26.1 30.0 8.01 82.0 5.64 3.2
Other Observations: Nil
SR3 13:10 Surface 1 27.8 27.6 8.34 105.0 6.90 7.07 4.1 4.5 10.4 10.6 N.A. N.A. N.A. N.A.
27.7 27.7 8.33 105.1 6.93 4.0
Middle 4.5 27.3 28.7 8.27 106.1 7.24 3.9 8.8 N.A. N.A.
27.3 28.6 8.27 106.2 7.22 3.8
Bottom 7.5 27.1 29.6 8.22 99.5 6.76 6.76 5.6 12.6 N.A. N.A.
27.1 29.7 8.23 99.5 6.76 5.4
Other Observations: Four dredgers at 50m & 100m
SR4 12:42 Surface 1 27.6 26.9 8.36 107.5 7.26 7.46 0.4 4.2 12.8 8.1 0.001 0.001* 0.36 0.35
27.5 26.9 8.35 107.7 7.27 0.4
Middle 3.5 27.2 27.8 8.31 112.9 7.65 0.1 4.4 0.001 0.35
27.2 27.8 8.31 112.3 7.64 0.1
Bottom 6 25.8 37.5 8.13 105.8 7.33 7.32 12.4 7.2 <0.001 0.35
25.8 33.6 8.13 102.0 7.30 12.0
Other Observations: Nil
SR5 12:30 Surface 1 27.3 26.8 8.34 106.3 7.19 7.00 10.6 10.9 7.4 10.4 0.001 0.002 0.39 0.38
27.4 26.8 8.33 106.5 7.23 10.6
Middle 3.5 26.8 29.3 8.21 99.8 6.81 14.7 11.2 0.003 0.36
26.8 29.3 8.21 99.7 6.78 14.7
Bottom 6 26.3 31.8 8.16 94.7 6.43 6.43 7.4 12.6 0.002 0.38
26.3 31.9 8.16 93.7 6.43 7.4
Other Observations: Nil
SR6 12:15 Surface 1 26.9 27.1 8.30 101.6 6.97 6.91 2.1 1.6 4.4 4.5 0.003 0.003 0.37 0.35
27.0 27.1 8.30 101.6 6.97 2.1
Middle 5 26.8 28.8 8.24 99.9 6.88 0.9 6.4 0.003 0.35
26.8 28.9 8.24 99.6 6.80 0.9
Bottom 9 26.3 31.6 8.20 91.7 6.25 6.25 1.8 2.8 0.004 0.33
26.3 31.6 8.20 91.7 6.25 1.9
Other Observations: Nil
SR7 12:00 Surface 1 27.0 29.0 8.30 100.7 6.87 6.83 0.5 1.6 4.6 4.3 0.001 0.003 0.26 0.22
26.9 29.0 8.29 102.8 6.95 0.6
Middle 10.5 25.7 33.9 8.17 97.5 6.74 1.5 5.0 0.004 0.30
25.6 33.9 8.17 97.6 6.75 1.5
Bottom 20 25.2 34.5 8.14 82.6 5.89 5.88 2.8 3.2 0.003 0.11
25.2 34.4 8.14 82.6 5.86 2.8
Other Observations: Nil
C1 10:00 Surface 1 26.2 33.3 8.22 82.4 6.65 6.70 4.2 3.6 6.6 6.3 0.006 0.005 0.37 0.26
26.2 33.3 8.22 82.4 6.65 4.0
Middle 13 26.0 33.9 8.22 84.4 6.77 3.5 8.0 0.005 0.27
26.0 33.8 8.22 84.0 6.74 3.3
Bottom 25 25.6 33.5 8.24 82.5 6.57 6.57 3.2 4.4 0.004 0.14
25.6 33.5 8.25 82.6 6.57 3.1
Other Observations: Nil
C2 10:15 Surface 1 26.0 30.4 8.22 84.7 6.72 6.79 7.1 5.7 8.9 7.4 0.007 0.007 0.40 0.37
26.0 30.4 8.21 85.6 6.82 7.1
Middle 6.5 25.9 31.2 8.22 85.0 6.82 4.1 7.9 0.007 0.38
25.9 31.2 8.22 84.9 6.81 4.0
Bottom 12 25.7 32.9 8.24 83.2 6.62 6.62 6.1 5.3 0.006 0.33
25.7 32.9 8.24 83.4 6.62 6.0
Other Observations: Nil
C3 10:45 Surface 1 26.6 28.3 8.22 92.5 6.33 6.29 2.0 5.0 6.5 6.9 0.005 0.005 0.42 0.38
26.6 28.3 8.22 92.4 6.32 2.0
Middle 4.5 26.5 29.2 8.22 91.4 6.28 2.4 7.7 0.005 0.39
26.5 29.2 8.22 90.5 6.24 2.4
Bottom 7.5 25.6 32.8 8.19 81.0 5.90 5.91 10.4 6.5 0.004 0.32
25.6 32.7 8.19 81.0 5.91 11.0
Other Observations: Nil
C4 10:04 Surface 1 26.6 29.2 8.31 99.4 6.77 6.75 0.7 1.3 5.5 6.6 0.001 0.002 0.26 0.21
26.6 29.2 8.31 99.1 6.74 0.7
Middle 6.5 26.6 29.4 8.30 98.5 6.74 0.9 5.1 0.002 0.27
26.6 29.5 8.30 98.5 6.73 0.9
Bottom 12 25.6 33.7 8.23 92.4 6.49 6.45 2.3 9.3 0.004 0.09
25.6 33.8 8.23 92.8 6.41 2.4
Other Observations: Nil
C5 11:35 Surface 1 26.9 29.7 8.36 109.8 7.55 7.48 4.5 2.2 8.9 10.0 0.001 0.002 0.42 0.23
26.9 29.7 8.36 109.9 7.58 4.4
Middle 11 25.4 34.4 8.22 100.0 7.18 0.4 6.7 0.003 0.20
25.4 34.4 8.22 100.1 7.60 0.4
Bottom 21 25.0 35.0 8.20 86.3 5.99 6.00 1.7 14.3 0.002 0.06
25.0 35.0 8.20 86.4 6.01 1.7
Other Observations: Nil
* Contains sample results < detection limit but assumed to be at the detection limit for the sake of computation.