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  4. 11-03-2017

G2 Old Coach Road Bridge Princetown

11 March 2017

Overview Notes Depth Profile Top-Bottom Documents 1 Chart
Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #10939
Date and Time Saturday 11th March 2017 09:30am
Approved Approved

Notes

AHD G2 1.12  @ 09:30      1.06 @   12:40 Overcast air temp 21C.  Slight sea with reefs exposed all along coast line

12.5 ml rain over night

Water smells bad, pale skin on surface

D.O. very low top to bottom

 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 20.30 2.60 0.35 3.9 4.90
Previous 21.0 1.3 5.6 63.0 2.5
Median 16.9 2.30 6.90 73.30 4.2
0.5m 20.30 2.70 0.32 3.5 5.12
Previous 21.4 2.1 6.2 70.1 3.9
Median 16.8 2.30 6.90 73.30 4.2
1.0m 20.40 3.00 0.38 4.3 5.59
Previous 21.6 2.8 5.4 63.2 5.2
Median 17.5 8.10 6.77 76.00 13.9
1.5m 20.40 5.60 0.37 4.2 9.76
Previous 21.6 3.8 6.4 74.2 6.7
Median 17.2 8.10 6.77 76.00 13.9
2.0m 20.40 18.00 0.41 5.2 28.70
Previous 20.3 21.6 3.1 39.5 34.2
Median 16.8 27.00 6.56 72.70 42.0
2.5m 19.40 25.50 3.17 39.7 39.90
Previous 20.4 21.8 3.2 42.6 34.4
Median 16.7 27.00 6.56 72.70 42.0
3.0m 18.70 29.40 0.92 11.7 45.33
Previous 18.5 29.9 0.2 2.5 46.0
Median 17.1 32.20 3.72 48.20 49.2
3.5m 18.30 30.60 0.00 0.0 46.96
Previous 18.5 29.9 0.3 4.3 45.9
Median 16.8 32.20 3.72 48.20 49.2
4.0m 18.10 31.00 0.00 0.0 47.48
Previous 17.9 30.9 0.0 0.0 47.4
Median 17.9 32.50 2.40 25.40 49.6
4.5m 17.90 31.20 0.00 0.0 47.74
Previous 18.0 30.9 0.0 0.0 47.4
Median 17.9 32.60 2.42 28.00 49.7

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1
Previous 0.1 9 6.7
Median 0.1 9 6.9
Bottom 4.5
Previous 4.7
Median 4.0

Other details

Max depth 4.57
Previous 4.82
Median 4.14
Flow estimate Medium

Observation Documents

Link Date File name Description

Preceding Observations

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