Impact Water Quality Monitoring Results at CS4 - Mid-Ebb Tide Impact Water Quality Monitoring Results at CS4 - Mid-Flood Tide
Date Weather Sea Sampling Water  Sampling Temperature (oC) pH Salinity (ppt) DO Saturation (%) Dissolved Oxygen (mg/L) Turbidity(NTU) Suspended Solids (mg/L) Date Weather Sea Sampling Water  Sampling Temperature (oC) pH Salinity (ppt) DO Saturation (%) Dissolved Oxygen (mg/L) Turbidity(NTU) Suspended Solids (mg/L)
   Condition  Condition** Time Depth (m) Depth (m) Value Average Value Average Value Average Value Average Value Average DA* Value Average DA* Value Average DA*    Condition  Condition** Time Depth (m) Depth (m) Value Average Value Average Value Average Value Average Value Average DA* Value Average DA* Value Average DA*
2-May-12 Cloudy Moderate 10:22 15 Surface 1 26.9 26.9 8.2 8.2 11.1 10.9 90.8 95.2 6.8 7.2 6.5 2.1 2.1 4.2 2.6 2.7 3.0 2-May-12 Fine Moderate 16:03 16 Surface 1 27.4 27.4 8.3 8.3 12.8 12.9 113.4 112.6 8.4 8.3 7.4 1.8 1.8 2.2 2.7 2.5 3.0
      26.9 8.2 10.6 99.6 7.5 2.0 2.7       27.5 8.3 12.9 111.8 8.2 1.8 2.3
      Middle 8 24.2 24.1 8.1 8.1 24.7 24.8 78.7 77.6 5.7 5.7 3.1 3.2 2.4 2.9       Middle 8 25.3 25.2 8.0 8.1 21.3 20.7 89.8 87.6 6.6 6.4 2.4 2.4 3.5 3.3
      24.0 8.1 24.9 76.4 5.6 3.2 3.3       25.2 8.1 20.2 85.4 6.3 2.3 3.0
      Bottom 14 23.6 23.6 8.1 8.1 28.1 28.1 75.6 76.5 5.5 5.5 5.5 7.2 7.2 4.1 3.5       Bottom 15 24.3 24.4 8.0 8.0 26.5 25.9 97.7 97.6 7.0 7.0 7.0 2.5 2.5 3.6 3.2
        23.6 8.1 28.1 77.3 5.6 7.1 2.9         24.4 8.0 25.3 97.5 7.0 2.5 2.7
4-May-12 Sunny Moderate 11:45 17 Surface 1 26.8 26.8 8.1 8.1 15.4 15.5 93.5 94.2 6.9 6.9 6.5 3.3 3.4 3.5 4.5 3.6 3.1 4-May-12 Cloudy Moderate 17:55 17 Surface 1 27.8 27.8 8.1 8.2 13.3 13.9 89.1 91.9 6.5 6.7 6.5 3.3 3.3 3.6 1.8 1.8 2.0
      26.8 8.1 15.6 94.9 7.0 3.5 2.6       27.9 8.2 14.5 94.6 6.9 3.2 1.8
      Middle 9 24.9 25.1 8.1 8.1 23.3 23.3 84.3 84.3 6.1 6.1 3.3 3.3 3.0 2.7       Middle 9 25.5 25.5 8.1 8.1 21.2 21.2 86.1 85.1 6.3 6.2 3.7 3.7 <0.5 1.1
      25.2 8.1 23.3 84.3 6.1 3.2 2.3       25.5 8.1 21.3 84.1 6.1 3.6 1.6
      Bottom 16 24.6 24.5 8.1 8.1 26.4 26.5 87.0 83.9 6.2 6.0 6.0 3.6 3.7 3.3 2.9       Bottom 16 25.1 25.2 8.1 8.1 23.9 23.7 83.5 86.4 6.0 6.2 6.2 3.7 3.8 2.9 3.0
        24.4 8.1 26.7 80.8 5.8 3.8 2.4         25.4 8.1 23.5 89.3 6.4 3.8 3.0
7-May-12 Sunny Moderate 13:45 17 Surface 1 27.3 27.3 8.1 8.1 16.0 16.0 84.3 86.6 6.1 6.3 6.1 8.7 8.9 11.6 2.5 3.7 2.9 7-May-12 Sunny Moderate 07:12 17 Surface 1 26.1 26.1 8.0 8.0 15.6 15.7 82.2 82.5 6.1 6.1 6.1 2.5 2.5 4.8 4.0 3.8 3.8
      27.4 8.1 16.0 88.8 6.4 9.1 4.8       26.1 8.0 15.7 82.7 6.1 2.4 3.5
      Middle 9 25.5 25.4 8.1 8.1 21.6 21.6 80.6 80.2 5.8 5.8 12.1 12.4 2.1 2.5       Middle 9 25.7 25.7 8.1 8.1 20.8 20.9 81.6 82.4 5.9 6.0 4.5 4.5 4.9 3.8
      25.4 8.1 21.6 79.8 5.8 12.6 2.8       25.6 8.1 21.1 83.2 6.0 4.4 2.7
      Bottom 16 25.2 25.2 8.1 8.1 24.8 24.6 81.8 80.7 5.9 5.8 5.8 13.5 13.4 2.3 2.4       Bottom 16 25.5 25.5 8.1 8.1 23.7 23.7 81.8 83.0 5.9 6.0 6.0 7.4 7.3 4.9 3.8
        25.1 8.1 24.3 79.6 5.7 13.2 2.5         25.4 8.1 23.7 84.2 6.0 7.2 2.7
9-May-12 Sunny Moderate 15:25 18 Surface 1 28.3 28.2 8.2 8.2 13.9 13.9 96.1 96.2 6.9 6.9 6.4 5.2 5.3 5.4 2.3 2.8 3.0 9-May-12 Sunny Moderate 08:29 17 Surface 1 27.0 27.2 8.0 8.0 12.7 12.7 84.2 83.4 6.3 6.2 6.2 2.2 2.3 2.4 3.8 4.1 3.3
      28.2 8.2 13.9 96.3 7.0 5.3 3.2       27.3 7.9 12.7 82.6 6.1 2.3 4.4
      Middle 9 26.2 26.2 8.1 8.1 21.2 20.8 80.6 81.1 5.8 5.8 5.1 5.3 3.0 3.4       Middle 9 26.7 26.7 8.1 8.1 18.8 18.7 84.4 84.7 6.1 6.1 2.2 2.2 4.0 3.2
      26.3 8.1 20.3 81.6 5.9 5.5 3.8       26.7 8.1 18.6 84.9 6.1 2.1 2.4
      Bottom 17 26.0 26.0 8.1 8.1 21.7 21.8 79.9 79.8 5.7 5.7 5.7 5.5 5.6 2.4 2.9       Bottom 16 26.2 26.3 8.1 8.1 21.8 21.4 83.7 83.5 6.0 6.0 6.0 2.5 2.6 2.2 2.6
      26.0 8.1 21.8 79.7 5.7 5.6 3.3         26.4 8.1 21.0 83.3 6.0 2.7 3.0
11-May-12 Sunny Moderate 17:09 17 Surface 1 27.8 27.8 8.4 8.4 18.8 18.8 105.5 103.4 7.5 7.3 6.6 3.7 3.7 4.8 5.0 4.9 3.7 11-May-12 Cloudy Moderate 09:54 17 Surface 1 27.5 27.5 8.2 8.2 16.7 16.9 98.3 99.2 7.1 7.1 6.7 1.3 1.4 1.5 1.9 1.5 1.3
      27.8 8.4 18.8 101.3 7.2 3.7 4.7       27.5 8.2 17.0 100.0 7.2 1.4 1.0
      Middle 9 25.5 25.5 8.2 8.2 24.9 25.2 81.0 81.7 5.8 5.8 4.2 4.3 2.2 2.7       Middle 9 26.3 26.2 8.2 8.2 22.7 22.8 91.3 89.1 6.5 6.3 1.4 1.5 1.2 1.4
      25.5 8.2 25.4 82.3 5.8 4.3 3.2       26.1 8.2 22.9 86.8 6.2 1.5 1.6
      Bottom 16 25.0 25.0 8.2 8.2 27.8 27.8 80.7 82.5 5.7 5.8 5.8 6.3 6.3 2.8 3.4       Bottom 16 25.4 25.2 8.2 8.2 26.6 26.9 91.0 87.0 6.4 6.1 6.1 1.7 1.7 1.2 0.9
        25.0 8.2 27.7 84.3 6.0 6.2 4.0         25.1 8.2 27.2 83.0 5.9 1.7 0.5
14-May-12 Sunny Moderate 09:07 17 Surface 1 28.0 27.9 8.3 8.3 16.0 16.2 92.3 90.5 6.6 6.5 5.9 1.8 1.9 2.0 2.2 2.5 3.3 14-May-12 Sunny Moderate 14:23 18 Surface 1 28.7 28.5 8.5 8.5 16.3 16.2 132.2 127.2 9.4 9.0 7.4 2.7 2.8 3.2 3.8 3.6 3.0
      27.8 8.3 16.3 88.7 6.4 1.9 2.7       28.3 8.5 16.2 122.2 8.7 2.9 3.3
      Middle 9 25.9 26.0 8.2 8.2 25.9 26.2 75.5 75.8 5.3 5.3 1.8 1.8 3.0 3.5       Middle 9 26.0 26.1 8.2 8.2 24.1 23.9 83.6 82.0 5.9 5.8 2.9 2.9 2.6 2.7
      26.0 8.2 26.4 76.1 5.3 1.7 3.9       26.2 8.2 23.7 80.3 5.7 2.8 2.8
      Bottom 16 24.9 24.9 8.1 8.1 28.4 28.4 73.3 72.8 5.2 5.1 5.1 2.2 2.2 5.2 4.0       Bottom 17 25.2 25.2 8.1 8.1 27.6 27.7 73.7 74.1 5.2 5.2 5.2 3.8 3.8 3.2 2.7
      24.9 8.1 28.4 72.3 5.1 2.2 2.7         25.1 8.1 27.7 74.4 5.2 3.7 2.2
16-May-12 Rainy Moderate 10:29 18 Surface 1 28.0 28.0 8.4 8.4 17.2 17.3 99.4 99.6 7.1 7.1 6.5 1.9 1.9 4.3 3.0 3.5 3.4 16-May-12 Cloudy Moderate 16:35 18 Surface 1 28.4 28.4 8.6 8.6 17.0 17.0 116.5 116.5 8.2 8.2 7.1 2.4 2.4 4.4 2.9 2.8 3.8
      28.0 8.4 17.3 99.7 7.1 1.8 3.9       28.4 8.6 17.0 116.4 8.2 2.3 2.7
      Middle 9 25.8 25.8 8.2 8.2 26.0 26.0 82.9 82.6 5.8 5.8 3.5 3.4 3.1 3.3       Middle 9 26.0 26.0 8.2 8.2 25.3 25.3 86.0 85.8 6.1 6.0 4.8 4.8 3.6 3.8
      25.8 8.2 26.0 82.2 5.8 3.2 3.5       26.0 8.1 25.3 85.6 6.0 4.8 4.0
      Bottom 17 25.3 25.3 8.1 8.1 27.9 27.9 73.7 73.5 5.2 5.2 5.2 7.3 7.5 2.5 3.3       Bottom 17 25.2 25.2 8.1 8.1 28.3 28.3 82.8 82.9 5.8 5.8 5.8 6.3 6.1 4.3 4.8
        25.3 8.1 28.0 73.3 5.1 7.7 4.1       25.2 8.1 28.3 83.0 5.8 5.9 5.3
18-May-12 # - - - - Surface - - - - - - - - - - - - - - - - - - 18-May-12 Rainy Moderate 18:05 18 Surface 1 27.2 27.2 8.2 8.2 17.7 17.7 84.2 84.3 6.1 6.1 5.7 2.1 2.2 3.7 1.2 1.5 1.6
      - - - - - - -       27.2 8.2 17.6 84.3 6.1 2.2 1.8
      Middle - - - - - - - - - - - - - - -       Middle 9 26.9 26.9 8.2 8.2 21.6 21.6 75.1 75.6 5.3 5.3 3.3 3.3 1.6 1.6
      - - - - - - -       26.9 8.2 21.6 76.0 5.4 3.2 1.6
      Bottom - - - - - - - - - - - - - - - -       Bottom 17 26.2 26.3 8.2 8.2 25.1 24.4 71.5 72.4 5.0 5.1 5.1 5.5 5.5 1.7 1.8
        - - - - - - -         26.3 8.2 23.8 73.3 5.2 5.5 1.9
21-May-12 Sunny Moderate 12:59 18 Surface 1 27.2 27.2 8.1 8.1 21.1 21.0 81.5 81.7 5.8 5.8 5.4 2.5 2.6 4.2 1.3 1.3 2.7 21-May-12 Sunny Moderate 20:24 18 Surface 1 27.3 27.3 8.1 8.1 18.7 18.7 84.3 82.9 6.0 5.9 5.5 3.0 3.1 3.4 5.3 5.0 4.2
      27.2 8.1 21.0 81.9 5.8 2.6 1.3       27.2 8.1 18.8 81.4 5.8 3.1 4.6
      Middle 9 26.8 26.8 8.1 8.1 23.7 23.1 71.3 71.7 5.0 5.0 2.9 2.8 5.4 4.1       Middle 9 26.9 26.8 8.1 8.1 23.4 23.5 71.5 72.2 5.0 5.1 3.5 3.5 3.2 3.6
      26.8 8.1 22.5 72.1 5.1 2.7 2.8       26.6 8.1 23.5 72.9 5.1 3.4 3.9
      Bottom 17 26.0 26.0 8.1 8.1 26.4 26.5 69.4 69.0 4.9 4.8 4.8 7.1 7.1 2.6 2.6       Bottom 17 26.1 26.3 8.1 8.1 25.7 25.3 69.3 68.4 4.9 4.8 4.8 3.6 3.6 4.6 4.1
        25.9 8.1 26.5 68.6 4.8 7.1 2.6         26.5 8.1 25.0 67.5 4.7 3.5 3.5
23-May-12 Sunny Rough 14:29 17 Surface 1 27.5 27.5 8.1 8.1 19.0 19.0 88.0 89.4 6.3 6.3 6.0 2.9 3.0 7.2 1.9 1.8 2.1 23-May-12 Fine Moderate 07:13 18 Surface 1 26.9 26.8 8.1 8.1 18.4 18.3 80.2 80.0 5.8 5.8 5.6 3.7 3.7 6.0 2.8 2.8 3.3
      27.5 8.1 19.0 90.8 6.4 3.1 1.6       26.8 8.1 18.2 79.8 5.8 3.7 2.7
      Middle 9 26.7 26.7 8.1 8.1 22.2 22.2 79.5 79.5 5.6 5.6 4.2 4.2 1.9 1.5       Middle 9 26.5 26.5 8.1 8.1 23.5 23.5 76.5 76.6 5.4 5.4 5.6 5.7 3.4 3.6
      26.7 8.1 22.2 79.4 5.6 4.2 1.0       26.5 8.1 23.5 76.6 5.4 5.7 3.8
      Bottom 16 26.5 26.5 8.2 8.2 24.4 24.3 75.0 76.5 5.3 5.4 5.4 14.2 14.3 2.5 3.1       Bottom 17 26.1 26.1 8.1 8.1 26.1 26.1 72.8 72.5 5.1 5.1 5.1 8.6 8.7 3.6 3.6
      26.5 8.1 24.2 77.9 5.5 14.4 3.6         26.1 8.1 26.1 72.2 5.1 8.7 3.6
25-May-12 Sunny Moderate 15:47 18 Surface 1 27.7 27.7 8.1 8.2 19.9 19.9 92.8 94.2 6.5 6.6 6.2 1.8 1.8 5.7 3.8 3.0 2.6 25-May-12 Fine Moderate 08:09 18 Surface 1 27.4 27.4 8.1 8.1 21.5 21.1 94.3 91.2 6.6 6.4 6.2 1.5 1.5 3.9 2.8 2.5 1.7
      27.8 8.2 19.9 95.5 6.7 1.8 2.1       27.4 8.1 20.8 88.1 6.2 1.5 2.2
      Middle 9 26.7 26.8 8.1 8.1 24.9 25.0 84.2 84.1 5.9 5.8 4.4 4.5 3.3 2.8       Middle 9 27.1 27.1 8.1 8.1 23.6 23.6 88.0 86.7 6.1 6.0 1.2 1.2 1.3 1.5
      26.8 8.1 25.0 83.9 5.8 4.6 2.3       27.0 8.1 23.6 85.3 6.0 1.2 1.6
      Bottom 17 26.6 26.5 8.1 8.1 26.4 26.5 79.2 77.7 5.5 5.4 5.4 10.9 10.8 2.0 2.1       Bottom 17 26.5 26.5 8.1 8.1 26.5 26.5 80.7 80.0 5.6 5.5 5.5 9.1 9.1 1.4 1.1
        26.5 8.1 26.5 76.2 5.3 10.6 2.2         26.5 8.1 26.5 79.3 5.5 9.1 0.8
28-May-12 Fine Moderate 17:48 19 Surface 1 28.5 28.6 8.1 8.1 23.7 23.7 103.5 99.3 7.0 6.7 6.4 1.7 1.7 3.0 2.0 2.8 3.7 28-May-12 Fine Moderate 11:09 19 Surface 1 28.0 28.0 8.0 8.1 22.3 22.2 101.6 97.1 7.0 6.7 6.4 1.2 1.2 4.2 1.6 1.5 2.2
      28.7 8.2 23.6 95.0 6.4 1.7 3.5       28.0 8.2 22.0 92.6 6.4 1.2 1.3
      Middle 10 27.3 27.4 8.2 8.2 25.9 26.0 87.7 89.6 6.0 6.1 3.5 3.4 4.5 3.4       Middle 10 27.5 27.4 8.2 8.2 25.9 26.0 87.7 87.5 6.0 6.0 1.2 1.2 1.7 2.3
      27.4 8.2 26.0 91.5 6.3 3.3 2.3       27.4 8.2 26.1 87.2 6.0 1.2 2.8
      Bottom 18 27.1 27.1 8.2 8.2 27.6 27.7 88.5 84.9 6.0 5.8 5.8 3.9 3.8 5.9 4.9       Bottom 18 27.0 27.1 8.2 8.2 27.5 27.6 79.2 80.5 5.4 5.5 5.5 10.1 10.2 3.1 2.9
      27.1 8.2 27.7 81.2 5.5 3.7 3.8         27.1 8.2 27.6 81.8 5.6 10.2 2.7
30-May-12 Sunny Calm 08:40 17 Surface 1 27.5 27.5 8.2 8.2 23.5 23.6 85.5 85.7 5.9 5.9 5.8 3.6 3.6 4.9 4.1 3.8 3.3 30-May-12 Sunny Calm 14:31 18 Surface 1 28.0 27.9 8.2 8.2 22.8 23.1 86.6 86.6 6.0 6.0 5.8 4.3 4.4 3.7 3.3 3.2 3.6
      27.5 8.2 23.7 85.8 5.9 3.6 3.5       27.9 8.2 23.4 86.5 6.0 4.4 3.1
      Middle 9 27.3 27.2 8.3 8.3 26.7 26.7 83.6 83.0 5.7 5.7 6.8 6.7 3.2 3.2       Middle 9 27.3 27.3 8.2 8.2 27.1 27.0 82.0 81.7 5.6 5.6 3.3 3.3 3.7 4.3
      27.2 8.2 26.7 82.3 5.6 6.5 3.1       27.2 8.2 26.9 81.3 5.6 3.2 4.8
      Bottom 16 27.0 27.0 8.2 8.2 28.1 28.1 81.1 80.8 5.5 5.5 5.5 4.4 4.3 3.4 2.8       Bottom 17 27.1 27.1 8.2 8.2 28.2 28.2 82.1 82.4 5.6 5.6 5.6 3.2 3.3 3.0 3.2
        27.0 8.2 28.0 80.4 5.5 4.2 2.1         27.1 8.2 28.2 82.7 5.6 3.3 3.4
Remarks: Remarks:
Bolded values means the measured values exceed the Action Level; Underlined bolded values means the measured values exceed the Limit Level. Bolded values means the measured values exceed the Action Level; Underlined bolded values means the measured values exceed the Limit Level.
#  - Amber Rainstorm and Thunderstorm warnings were issued by HKO from 08:55 to 10:45 and 01:30 to 14:00 on 18 May 2012 respectively, with the consideration of safety concern, water quality monitoring  at Mid-Ebb session was cancelled.
Remarks:   Remarks:  
*     DA: Depth-Averaged *     DA: Depth-Averaged
**   Calm: Small or no wave; Moderate: Between calm and rough; Rough: White capped or rougher **   Calm: Small or no wave; Moderate: Between calm and rough; Rough: White capped or rougher
***  Cancelled due to Thunderstorm Warning and safety concern. ***  Cancelled due to Thunderstorm Warning and safety concern.