Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #11361
Date and Time Monday 10th July 2017 10:20am
Approved Approved

Notes

AHD G2 0.86 @10:20     G6  3.08  @ 08:22

Water very dirty  pale brown in colour, high turbidity which extends into estuary

No flooding but some water along N. side of OOR at flood markers (from run off)

Sufficient flow to require weights to rope ( probe attached)

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 8.70 0.20 7.18 61.4 0.43
Previous 8.6 2.0 9.7 84.1 3.8
Median 17.1 2.60 6.78 71.90 5.1
0.5m 8.70 0.20 6.92 59.5 0.46
Previous 10.8 3.6 8.0 74.0 6.6
Median 17.2 2.70 6.78 71.90 5.1
1.0m 8.70 0.20 7.13 61.6 0.45
Previous 8.7 3.3 9.3 81.1 5.8
Median 17.8 7.00 6.66 74.20 9.8
1.5m 8.70 0.20 7.16 61.7 0.45
Previous 12.3 16.3 7.6 77.8 26.7
Median 18.0 8.10 6.66 74.20 12.1
2.0m 8.70 0.20 7.23 62.2 0.46
Previous 13.5 30.7 6.2 72.4 47.2
Median 16.7 28.10 5.76 64.30 43.5
2.5m 8.70 0.20 7.29 62.8 0.47
Previous 13.7 28.2 7.0 80.1 43.7
Median 17.1 28.10 5.76 64.30 43.5
3.0m 8.70 0.20 7.26 62.4 0.47
Previous 14.0 32.2 4.8 46.1 49.2
Median 16.7 30.50 3.42 40.00 46.8
3.5m 8.70 0.20 7.22 62.3 0.49
Previous 13.8 29.5 5.9 68.6 45.6
Median 17.1 30.50 3.42 40.00 46.8
4.0m 8.80 0.20 7.15 61.6 0.49
Previous 10.3 1.9 6.0 53.8 3.5
Median 17.9 31.20 1.37 17.80 47.8

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 70 6.8
Previous 0.1 9 6.9
Median 0.1 10 6.8
Bottom 4.2
Previous 3.9
Median 4.1

Other details

Max depth 4.30
Previous 4.03
Median 4.17
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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