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  4. 10-10-2009

G2 Old Coach Road Bridge Princetown

10 October 2009

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #2625
Date and Time Saturday 10th October 2009 10:05am
Approved Approved

Notes

1.Water dark reddish brown,(like weak tea in turbidity measure)
2.East wind creating waves
3.AHD 1.20 - board difficult to read- stained from flood debris
3.N.O.P. 1.157 175
S.O.P. 1.649 213.1
4.PH. 10 cm = 7.0

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 12.00 0.50 10.16 94.7
Previous 12.3 0.2 7.6 70.8
Median 15.9 3.20 6.61 70.10
0.5m 11.50 0.60 10.45 96.1
Previous 16.1 2.3 6.6 67.8
Median 16.0 3.30 6.61 70.10
1.0m 11.50 0.60 10.26 94.3
Previous 12.3 0.2 7.7 71.0
Median 16.7 11.20 6.28 69.50
1.5m 11.50 0.90 10.01 92.9
Previous 17.7 23.2 6.2 75.4
Median 16.9 13.70 6.28 69.50
2.0m 12.40 21.60 7.86 84.8
Previous 12.3 0.2 7.5 70.2
Median 16.7 28.80 5.55 64.70
2.5m 12.70 26.80 7.25 82.2 D.O. mg/l unstable
Previous 17.7 29.7 4.9 62.5
Median 16.8 28.80 5.55 64.70
2.9m 12.80 27.10 6.86 77.5 D.O. mg/l unstable
Previous 12.8 22.0 6.9 74.4
Median 16.7 28.80 5.55 64.70

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 20
Previous 0.1 30
Median 0.1 20
Bottom 1.5 30
Previous 2.5 30
Median 3.3 20

Other details

Max depth 2.99
Previous 3.34
Median 3.54
Flow estimate Medium

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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