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  4. 13-06-2014

G2 Old Coach Road Bridge Princetown

13 June 2014

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #8952
Date and Time Friday 13th June 2014 11:58am
Approved Approved

Notes

  • AHD 0.80
  • Freshwater inflow downstream, but flow also going upstream as well. Influence from waves entering estuary
  • Flats upstream waterlogged with visible cover in very low areas, especially around G5
  • Cape pondweed flowering in deeper areas

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 11.50 1.80 8.25 76.6 3.42 Salt water entering estuary
Previous 13.0 2.6 8.0 77.7 4.9
Median 15.1 1.80 7.81 77.70 3.5
0.5m 11.40 1.80 8.14 75.6 3.50
Previous 14.8 4.1 8.1 81.9 6.0
Median 15.1 1.80 7.81 78.40 3.5
1.0m 11.40 2.10 7.97 73.7 4.01 E.C. erratic
Previous 13.6 9.0 7.5 73.3 15.6
Median 15.1 4.10 7.42 78.70 5.9
1.5m 12.40 17.30 7.51 78.0 27.99
Previous 15.2 26.4 6.9 79.0 40.7
Median 15.2 4.10 7.42 78.70 5.9
2.0m 13.60 24.50 6.82 76.2 38.35
Previous 14.7 20.3 6.7 78.4 32.5
Median 15.3 28.90 6.60 72.50 44.7
2.5m 13.70 24.80 6.66 75.1 38.89
Previous 15.7 30.8 6.1 74.5 47.2
Median 15.6 29.10 6.60 72.50 44.8
3.0m 14.40 27.40 4.81 55.3 42.25 Probe drifting upstream under bridge
Previous 15.7 31.0 2.6 32.3 47.5
Median 15.7 32.40 5.58 67.40 49.4
3.5m 15.30 30.20 1.51 18.7 46.38 " " D.O.erratic
Previous 15.8 31.5 3.5 42.2 48.2
Median 15.8 32.40 5.93 67.50 49.4
4.0m 15.60 30.40 1.52 18.3 46.73 " "
Previous 15.8 31.2 1.9 23.4 47.9
Median 15.8 32.50 6.45 67.20 49.6

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 6.9
Previous 0.1 11 7.1
Median 0.1 11 6.9
Bottom
Previous 4.0 7 6.8
Median 3.5 12 7.2

Other details

Max depth 4.18
Previous 4.17
Median 3.91
Flow estimate Slow

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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