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: 4/3/2017 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 Avergae Value Average Value Average Value Average Value Average Value Average Value
C3a 12:19 <0.5 25.0 5.9 7.1 86.2 31.6 <0.1 11
C3b 12:43 <0.5 22.5 6.2 6.5 74.7 10.9 <0.1 14
I5 12:54 <0.5 23.8 6.7 8.5 100.0 12.7 <0.1 5.95
Date of Monitoring: 4/5/2017 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 11:58 <0.5 27.2 6.2 6.5 82.4 24.6 <0.1 15
C3b 12:19 <0.5 24.7 6.4 6.1 73.5 9.9 <0.1 5.8
I5 12:28 <0.5 26.1 6.7 7.9 97.1 7.0 <0.1 3.7
Date of Monitoring: 4/7/2017 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 12:43 <0.5 27.2 6.1 5.4 68.6 135.0 <0.1 120
C3b 13:00 <0.5 24.8 5.9 5.8 70.4 13.2 <0.1 11
I5 13:11 <0.5 25.6 6.6 7.8 95.9 7.0 <0.1 4.95
Date of Monitoring: 4/10/2017 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 12:07 <0.5 25.6 6.0 5.1 62.3 67.5 <0.1 78
C3b 12:32 <0.5 24.6 6.2 5.4 65.2 10.2 <0.1 6.45
I5 12:45 <0.5 25.3 6.6 7.1 86.2 6.5 <0.1 5.3
Date of Monitoring: 4/12/2017 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 10:30 <0.5 22.7 6.0 5.1 63.4 55.8 <0.1 53
C3b 10:57 <0.5 21.1 6.9 5.6 66.7 26.6 <0.1 30
I5 11:10 <0.5 21.3 7.3 7.2 87.9 9.7 <0.1 5.9
Date of Monitoring: 4/18/2017 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 12:40 <0.5 29.2 6.2 6.1 79.3 28.2 <0.1 19.5
C3b 12:59 <0.5 26.8 6.6 5.8 72.2 15.2 <0.1 7.25
I5 13:11 <0.5 27.7 6.8 6.7 85.3 6.9 <0.1 3.05
Date of Monitoring: 4/20/2017 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 10:41 <0.5 27.1 5.8 5.3 66.4 29.6 <0.1 26.5
C3b 10:57 <0.5 25.9 6.5 5.5 67.3 18.6 <0.1 17
I5 11:07 <0.5 26.3 6.7 5.9 73.3 8.3 <0.1 5.6
Date of Monitoring: 4/22/2017 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 10:26 <0.5 22.2 6.8 5.4 62.3 46.5 <0.1 25.5
C3b 10:48 <0.5 21.6 6.8 6.8 77.6 49.8 <0.1 24
I5 11:11 <0.5 19.6 6.9 8.6 93.6 31.2 <0.1 19.5
Date of Monitoring: 4/24/2017 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 11:06 <0.5 23.5 6.5 5.7 67.0 45.6 <0.1 38.5
C3b 11:21 <0.5 22.4 7.1 6.9 79.8 25.2 <0.1 12
I5 11:31 <0.5 22.6 7.1 6.0 69.1 16.9 <0.1 13.5
Date of Monitoring: 4/26/2017 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 11:57 <0.5 24.9 8.0 5.5 66.1 37.2 <0.1 19.5
C3b 12:14 <0.5 24.4 7.7 6.4 76.7 18.0 <0.1 12.5
I5 12:24 <0.5 25.2 7.4 6.7 82.1 13.5 <0.1 4.7
Date of Monitoring: 4/28/2017 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 11:53 <0.5 25.1 6.5 6.4 73.1 22.7 <0.1 20
C3b 12:19 <0.5 24.7 6.9 6.2 72.0 11.4 <0.1 10.2
I5 12:30 <0.5 24.9 7.1 6.8 84.1 2.8 <0.1 2.5