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  4. 15-08-2015

G4 Bridge at Rivernook

15 August 2015

Overview Notes Depth Profile Top-Bottom Documents 0 Chart
Observation details

Overview

Estuary Gellibrand River Estuary
Site Bridge at Rivernook
Observation ID #9785
Date and Time Saturday 15th August 2015 09:35am
Approved Approved

Notes

  • Scum on surface
  • Water current swirling, upwelling & changing direction constantly -excessive turbulence
  • Flats downstream have no visible water cover, water in very low areas & drains around G4 & just up stream
  • Rainbow coloured scum on surface of roadside drain OOR just upstream G4 pH 5.9

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 10.00 0.10 8.50 75.3 0.30
Previous 8.4 0.1 9.1 78.0 0.3
Median 14.6 0.50 6.94 68.40 1.0
0.5m 10.00 0.10 8.58 75.5 0.30
Previous 10.1 0.1 8.5 75.4 0.3
Median 14.6 0.50 6.94 68.40 1.0
1.0m 10.00 0.10 8.44 75.2 0.30
Previous 8.4 0.1 9.1 77.1 0.3
Median 14.6 0.50 6.87 67.90 1.1
1.5m 10.00 0.10 8.75 77.0 0.30
Previous 10.1 0.1 8.4 74.9 0.3
Median 14.6 0.50 6.87 67.90 1.1
2.0m 10.00 0.10 8.70 77.5 0.30 D.O. erratic
Previous 8.4 0.1 9.1 77.9 0.3
Median 16.1 22.10 5.75 61.30 35.0
2.5m 10.00 0.10 8.77 77.6 0.30
Previous 10.2 0.1 8.2 73.0 0.3
Median 16.1 22.10 4.95 60.60 35.0
3.0m 10.00 0.10 8.82 78.4 0.30
Previous 8.4 0.1 9.2 78.7 0.3
Median 17.0 27.00 2.70 33.10 40.1
3.5m 10.00 0.10 8.84 78.5 0.30
Previous 10.2 0.1 8.4 74.7 0.3
Median 17.0 27.00 2.50 29.60 40.1
4.0m 10.00 0.10 8.86 78.6 0.30
Previous 8.4 0.1 9.2 78.3 0.3
Median 17.0 27.10 2.29 28.70 42.1
4.5m 10.00 0.10 8.78 78.0 0.30
Previous 10.2 0.1 8.3 73.9 0.3
Median 17.0 27.10 1.97 23.10 42.1
4.9m 10.00 0.10 8.70 77.5 0.30
Previous 16.8 29.7 2.3 28.7 45.7
Median 17.1 27.80 1.97 23.10 42.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 12 6.5
Previous 0.1 24 6.2
Median 0.1 9 6.8
Bottom
Previous 5.4
Median 5.4

Other details

Max depth 4.97
Previous 5.65
Median 5.37
Flow estimate Fast

Observation Documents

No documents found for this observation

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
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