Project Name:  Contract No. CV/2012/09 Liantang / Heung Yuen Wai Boundary Control Point Site Formation and
Infrastructure works - Contract 3
Entrusted Portion of Widening of Tolo Highway / Fanling Highway between Island House Interchange
and Fanling - Stage 2
Date of Monitoring: 2/1/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Avergae Value Average Value Average Value Average Value Average Value Average Value
C3a 11:07 <0.5 20.8 6.3 7.4 83.2 14.4 <0.1 11
C3b 11:32 <0.5 20.0 6.6 7.6 83.3 7.6 <0.1 3.85
I5 11:48 <0.5 20.8 7.0 7.9 88.6 6.3 <0.1 2.8
Date of Monitoring: 2/3/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:08 <0.5 18.9 6.4 7.2 77.5 12.9 <0.1 13.05
C3b 11:36 <0.5 18.7 6.7 8.0 85.2 7.5 <0.1 3.65
I5 11:50 <0.5 19.1 6.9 7.4 79.5 5.6 <0.1 2.8
Date of Monitoring: 2/6/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:22 <0.5 22.2 6.4 7.7 88.2 21.4 <0.1 25.5
C3b 11:44 <0.5 20.5 6.6 7.2 80.0 7.5 <0.1 5.8
I5 11:56 <0.5 21.5 6.8 6.8 77.4 5.7 <0.1 <2.5
Date of Monitoring: 2/8/2017 Weather :   Cloudy
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 8:44 <0.5 18.4 6.3 5.7 60.3 14.3 <0.1 17.95
C3b 9:09 <0.5 18.3 6.5 6.6 70.1 7.6 <0.1 5.75
I5 9:22 <0.5 18.3 6.8 5.2 55.0 6.1 <0.1 3.2
Date of Monitoring: 2/10/2017 Weather :   Cloudy
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 12:26 <0.5 16.9 6.6 8.6 88.5 17.0 <0.1 18
C3b 11:50 <0.5 16.1 6.5 9.3 94.5 11.2 <0.1 7.3
I5 12:01 <0.5 15.2 6.7 8.5 85.1 8.1 <0.1 5.9
Date of Monitoring: 2/13/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:17 <0.5 19.1 6.4 8.6 93.1 18.2 <0.1 14
C3b 11:46 <0.5 18.2 6.6 7.8 83.2 8.5 <0.1 4.15
I5 11:56 <0.5 18.0 7.1 8.1 85.3 6.4 <0.1 <2.5
Date of Monitoring: 2/15/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 10:54 <0.5 18.8 6.6 9.7 103.7 24.4 <0.1 34.5
C3b 11:10 <0.5 18.1 6.8 8.1 86.3 10.0 <0.1 14.5
I5 11:23 <0.5 18.5 7.2 7.6 80.7 11.1 <0.1 15
Date of Monitoring: 2/17/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:07 <0.5 21.4 6.7 8.9 101.1 17.4 <0.1 16.5
C3b 11:31 <0.5 20.5 6.9 8.2 91.0 8.6 <0.1 10.5
I5 11:42 <0.5 21.0 7.0 8.8 98.8 12.4 <0.1 10.35
Date of Monitoring: 2/20/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:28 <0.5 22.9 7.1 8.4 85.0 12.9 <0.1 11.5
C3b 11:57 <0.5 21.5 7.1 9.0 92.1 9.0 <0.1 12
I5 12:08 <0.5 22.2 7.3 8.3 82.4 5.7 <0.1 4.75
Date of Monitoring: 2/22/2017 Weather :   Cloudy
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:27 <0.5 21.1 7.0 8.6 95.6 32.8 <0.1 24.5
C3b 11:49 <0.5 20.7 7.1 8.8 98.8 12.6 <0.1 10.25
I5 12:01 <0.5 22.0 7.2 9.1 103.8 23.5 <0.1 14
Date of Monitoring: 2/24/2017 Weather :   Cloudy
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:22 <0.5 15.7 6.6 9.5 95.7 13.2 <0.1 12.5
C3b 11:46 <0.5 15.6 7.1 8.3 83.5 29.5 <0.1 21.5
I5 11:59 <0.5 14.9 7.3 9.2 91.4 6.9 <0.1 5.95
Date of Monitoring: 2/27/2017 Weather :   Sunny
Monitoring Location Time Water Depth (m) Temperature (oC) pH DO (mg/L) DO (% saturation) Turbidity (NTU) Salinity (g/L) SS (mg/L)
Average Value Average Value Average Value Average Value Average Value Average Value Average Value
C3a 11:36 <0.5 19.3 7.0 8.5 91.7 31.6 <0.1 38
C3b 11:56 <0.5 18.3 7.1 8.0 85.3 8.2 <0.1 9
I5 12:09 <0.5 20.3 7.2 7.9 87.5 24.7 <0.1 15