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  4. 02-04-2019

G2 Old Coach Road Bridge Princetown

2 April 2019

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #12812
Date and Time Tuesday 2nd April 2019 14:00pm
Approved Approved

Notes

AHD G2  0.53 @ 14:00        G6 0.88 (estimate only as board is covered with silt)

Many small fish visible in shallow water & larger ones 5-15 cm. actively swimming around bridge

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 14.90 1.80 3.61 36.3 3.32
Previous 15.2 2.8 2.3 23.6 5.2
Median 17.4 2.30 6.78 70.40 4.2
0.5m 14.70 1.90 3.47 34.7 3.64 E.C. erratic
Previous 14.8 2.0 6.9 68.6 3.7
Median 17.4 2.20 6.78 70.40 4.2
1.0m 14.50 3.10 3.45 24.9 5.60 "
Previous 15.2 3.3 2.2 22.8 6.0
Median 17.9 5.80 6.87 69.80 10.3
1.5m 14.20 4.90 0.23 2.4 8.16 "
Previous 17.9 14.1 0.1 0.7 19.7
Median 17.9 5.80 6.87 69.80 10.3
2.0m 14.30 5.30 0.09 0.9 9.33
Previous 17.2 20.0 2.6 30.2 31.7
Median 17.3 21.00 5.88 64.20 33.5
2.5m 14.30 5.40 0.03 0.3 9.60
Previous 17.6 21.1 5.0 59.3 33.5
Median 17.3 21.00 5.88 64.20 33.5
3.0m 14.30 5.50 0.03 0.3 9.64
Previous 18.1 26.2 0.1 0.6 40.9
Median 17.6 28.20 4.04 49.70 43.7
3.5m 14.20 6.60 0.03 0.3 11.47
Previous 17.6 24.4 3.8 45.9 38.3
Median 17.6 28.20 4.04 49.70 43.7
3.9m 14.60 11.30 0.03 0.3 19.00 E.C. steadily rising & falling
Previous 17.6 24.7 4.5 54.2 38.7
Median 17.6 28.20 4.12 50.60 43.7

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1
Previous 0.1 3 7.0
Median 0.1 9 7.0
Bottom 3.9
Previous 4.7 2 7.7
Median 4.5 9 7.2

Other details

Max depth 3.96
Previous 4.75
Median 4.55
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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