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  4. 09-10-2017

G2 Old Coach Road Bridge Princetown

9 October 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 #11495
Date and Time Monday 9th October 2017 12:52pm
Approved Approved

Notes

AHD G2  0.60 @ 12:52

        G6  1.91 @ 12.20

W wind 4 -small waves across surface

Water dark reddish brown. 

Flats draining around G5 water almost clear downstream of G5

Algae visible in wetlands below township & western area

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 14.00 0.30 8.25 80.1 0.59
Previous 12.1 0.1 7.9 72.8 0.3
Median 17.1 2.60 6.87 72.50 5.1
0.5m 14.00 0.30 8.18 79.3 0.72 Meter going into "RANGE"E.C.erratic
Previous 10.6 0.1 7.8 70.7 0.4
Median 17.1 2.60 6.78 71.90 5.1
1.0m 13.80 0.30 8.22 79.6 0.70 E.C.erratic
Previous 11.9 0.1 7.9 73.4 0.3
Median 17.8 7.00 6.77 74.20 9.8
1.5m 13.70 0.70 8.06 78.0 1.33 E.C. very erratic
Previous 10.6 0.2 7.8 70.8 0.3
Median 17.8 7.00 6.66 74.20 9.8
2.0m 13.60 1.30 8.05 77.7 2.35
Previous 11.9 0.1 7.9 73.1 0.3
Median 16.7 28.10 5.92 65.60 43.5
2.5m 14.00 17.00 7.98 81.1 27.63
Previous 10.6 0.2 7.7 69.0 0.3
Median 16.7 28.10 5.76 64.30 43.5
3.0m 14.10 23.30 7.35 82.5 36.77
Previous 11.9 0.1 7.9 73.4 0.3
Median 16.7 30.50 3.42 40.00 46.8
3.5m 14.10 24.00 7.29 82.2 37.76
Previous 10.6 0.2 7.3 66.1 0.3
Median 17.1 30.60 3.42 40.00 47.0
3.9m 14.10 24.00 7.30 82.6 37.82
Previous 8.9 0.2 9.3 80.4 0.4
Median 17.1 30.60 3.38 38.80 47.0

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 19 6.6
Previous 0.1 20 6.8
Median 0.1 10 6.8
Bottom 3.9
Previous 4.2
Median 4.1

Other details

Max depth 4.03
Previous 4.30
Median 4.22
Flow estimate N/A

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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