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  4. 14-05-2018

G2 Old Coach Road Bridge Princetown

14 May 2018

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

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #12048
Date and Time Monday 14th May 2018 15:15pm
Approved Approved

Notes

AHD G2 0.83 @ 15:15

Natural opening occurred late pm. or over night on 13-05-18

Water column very dynamic.Weighted rope used because of fast flow

River bed at G2 site soft with deep very fine black silt. 

 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 11.90 2.10 6.89 64.5 4.09 SW wind 3 Weights used
Previous 14.5 11.3 7.2 73.3 35.6
Median 17.9 1.80 6.92 71.30 3.5
0.5m 11.90 2.30 6.85 64.6 4.31 E.C. very erratic
Previous 16.2 17.9 3.7 38.0 32.8
Median 18.0 1.80 6.92 71.30 3.5
1.0m 12.00 2.90 6.57 62.3 5.23 E.C. " "
Previous 16.9 31.3 7.0 86.0 48.0
Median 18.0 2.80 6.88 70.80 5.2
1.5m 12.10 4.30 5.22 52.2 8.23 E.C. "
Previous 17.3 31.2 5.5 65.7 47.8
Median 18.2 2.80 6.88 70.80 5.2
2.0m 12.70 9.90 3.87 38.8 17.17 E.C. erratic
Previous 16.8 32.7 7.1 89.6 49.9
Median 17.6 23.10 5.94 69.00 36.4
2.5m 12.80 11.40 3.03 32.0 19.10
Previous 17.3 33.3 6.3 80.4 50.7
Median 17.6 23.10 5.94 69.00 36.4
3.0m 12.80 11.60 3.01 30.3 19.43
Previous 16.9 33.0 7.1 89.8 50.3
Median 17.9 30.10 3.58 42.70 46.4
3.5m 13.70 28.20 4.04 47.0 42.09 E.C. very erratic
Previous 17.3 33.4 6.1 78.1 50.8
Median 17.9 30.00 3.34 42.50 46.0
4.0m 14.50 31.80 3.25 39.1 48.68
Previous 17.9 31.9 1.1 13.7 48.8
Median 18.2 32.00 1.08 13.70 49.1
4.2m 14.50 32.10 3.33 39.7 49.19
Previous 18.2 33.3 2.8 36.6 50.8
Median 18.2 32.00 0.64 8.40 49.1

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 25 7.0
Previous 0.1 15 6.7
Median 0.1 11 6.8
Bottom 4.2 14 7.4
Previous 3.9 3 7.2
Median 4.1 12 7.2

Other details

Max depth 4.32
Previous 3.97
Median 4.21
Flow estimate Fast

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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