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  4. 27-07-2012

G2 Old Coach Road Bridge Princetown

27 July 2012

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #7501
Date and Time Friday 27th July 2012 13:20pm
Approved Approved

Notes

1. AHD 0.70 13:20
at G6 2.22 10.26
2. Water is flowing under the bearer at G4 & flats upstream & downstream are watterlogged only.
3.From between G5 & G4 to G5 & upstream water on flats is reducing
4.No. water birds is greatly increasing

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 10.40 0.20 9.36 83.9 0.35
Previous 10.2 0.2 9.7 85.8 0.4
Median 14.5 1.30 7.82 78.50 2.2
0.5m 10.40 0.20 9.41 84.1 0.35
Previous 9.3 0.2 9.7 85.3 0.4
Median 14.5 1.30 7.65 78.30 2.2
1.0m 10.40 0.20 9.29 83.0 0.36
Previous 9.9 0.2 9.6 85.0 0.4
Median 14.9 4.30 7.59 78.90 8.1
1.5m 10.40 0.20 9.38 83.0 0.35
Previous 9.3 0.2 9.7 84.7 0.4
Median 14.9 4.30 7.56 78.00 8.1
2.0m 10.40 0.20 9.30 83.9 0.36
Previous 9.9 0.2 9.2 81.7 4.2
Median 15.5 25.90 6.39 73.40 40.0
2.5m 10.40 0.20 9.39 83.0 0.38
Previous 9.3 0.2 9.8 84.8 0.3
Median 15.5 25.90 6.28 72.80 40.0
3.0m 10.40 0.20 9.28 83.0 0.39 E.C. wide range
Previous 9.9 0.2 9.1 80.9 4.2
Median 15.8 29.60 4.71 57.90 45.6
3.5m 10.40 0.30 9.12 81.4 0.61 E.C. wide range & very erratic
Previous 9.3 0.2 9.5 83.2 0.4
Median 15.8 29.60 4.64 55.80 45.6
4.0m 10.40 0.50 9.03 80.9 1.06
Previous 9.9 0.2 8.9 79.1 0.4
Median 17.0 30.20 3.13 37.70 46.6

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 20
Previous 0.1 40 6.4
Median 0.1 20 6.7
Bottom 2.5 50
Previous 2.5 40 6.2
Median 2.5 30 6.8

Other details

Max depth 4.02
Previous 4.35
Median 3.95
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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