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: 3/1/2017 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 Avergae Value Average Value Average Value Average Value Average Value Average Value
C3a 11:19 <0.5 20.3 6.5 8.3 91.2 21.5 <0.1 21
C3b 11:43 <0.5 19.4 6.9 8.6 93.9 10.1 <0.1 9.35
I5 11:59 <0.5 19.9 7.1 8.1 89.0 15.2 <0.1 8.55
Date of Monitoring: 3/3/2017 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 12:08 <0.5 21.6 6.7 8.2 92.7 25.5 <0.1 17
C3b 12:30 <0.5 19.8 6.9 8.5 93.0 7.6 <0.1 7.4
I5 12:41 <0.5 21.3 7.1 7.8 88.0 22.5 <0.1 15.5
Date of Monitoring: 3/6/2017 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 15:11 <0.5 24.4 6.7 8.0 91.5 20.4 <0.1 9.65
C3b 15:32 <0.5 21.9 6.9 8.1 92.9 9.1 <0.1 3.95
I5 15:45 <0.5 23.3 7.1 7.9 88.2 16.4 <0.1 11
Date of Monitoring: 3/8/2017 Weather :   Rainy
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 11:34 <0.5 18.2 6.8 9.0 95.3 43.5 <0.1 28
C3b 11:55 <0.5 18.2 6.9 8.8 93.7 20.4 <0.1 12
I5 12:10 <0.5 18.3 7.1 8.3 89.3 40.9 <0.1 33.5
Date of Monitoring: 3/10/2017 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 11:18 <0.5 19.6 6.4 8.8 100.2 22.1 <0.1 16
C3b 11:43 <0.5 19.4 6.8 8.5 95.9 12.6 <0.1 5.15
I5 11:58 <0.5 19.3 7.1 8.2 89.9 10.3 <0.1 15.5
Date of Monitoring: 3/13/2017 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 11:08 <0.5 22.7 6.4 8.8 102.1 30.9 <0.1 18.5
C3b 11:34 <0.5 22.5 6.8 8.6 98.5 9.0 <0.1 4.65
I5 11:47 <0.5 22.2 6.9 8.2 88.7 11.5 <0.1 16.5
Date of Monitoring: 3/15/2017 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 11:56 <0.5 19.0 7.9 6.9 73.9 38.4 <0.1 7.3
C3b 12:17 <0.5 18.4 7.7 7.1 75.8 8.4 <0.1 3.9
I5 12:28 <0.5 19.3 7.8 7.1 77.5 9.0 <0.1 5.15
Date of Monitoring: 3/17/2017 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 11:41 <0.5 19.4 7.0 8.0 87.0 29.5 <0.1 29.5
C3b 12:04 <0.5 19.3 7.3 8.8 95.3 3.6 <0.1 5.35
I5 12:15 <0.5 19.4 7.6 8.4 92.1 2.0 <0.1 3.05
Date of Monitoring: 3/20/2017 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 10:49 <0.5 23.7 7.3 6.8 80.8 27.7 <0.1 22
C3b 11:15 <0.5 23.0 7.3 6.3 73.8 5.5 <0.1 4.95
I5 11:26 <0.5 24.6 7.4 7.9 95.3 5.0 <0.1 3.5
Date of Monitoring: 3/22/2017 Weather :   Rainy
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 11:54 <0.5 19.9 7.3 5.5 60.1 27.7 <0.1 34
C3b 12:13 <0.5 19.9 7.3 6.5 71.4 4.2 <0.1 4.45
I5 12:22 <0.5 20.4 7.6 6.4 71.2 3.8 <0.1 3.15
Date of Monitoring: 3/24/2017 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 11:37 <0.5 26.1 7.1 6.6 81.6 24.2 <0.1 15.5
C3b 12:01 <0.5 23.4 7.0 6.5 76.2 5.2 <0.1 4.2
I5 12:12 <0.5 26.9 7.3 10.2 128.0 3.9 <0.1 4.1
Date of Monitoring: 3/27/2017 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 13:34 <0.5 23.7 6.5 7.2 84.9 15.8 <0.1 11.2
C3b 13:50 <0.5 20.8 6.9 6.8 76.4 6.8 <0.1 6.85
I5 14:00 <0.5 21.9 7.2 7.7 87.9 2.2 <0.1 3.8
Date of Monitoring: 3/29/2017 Weather :   Rainy
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 11:16 <0.5 21.9 6.2 5.9 66.8 28.6 <0.1 <2.5
C3b 11:28 <0.5 21.4 6.6 6.6 74.8 19.1 <0.1 <2.5
I5 11:34 <0.5 21.8 6.9 6.3 71.5 18.4 <0.1 <2.5