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H1 Site one (Hopkins River Bridge)

15 March 2024

Observation details

Overview

Estuary Hopkins River Estuary
Site Site one (Hopkins River Bridge)
Observation ID #16054
Date and Time Friday 15th March 2024 17:05pm
Approved Approved

Notes

Assisted by Harriet

Very old pH strips used for pH samples, as pH metre sensor failed 

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 21.00 20.10 6.97 86.5 32.16
Previous 21.5 17.9 8.7 108.2 28.9
Median 17.3 13.00 9.13 99.60 21.6
0.5m 20.90 20.10 6.85 85.8 32.17
Previous 21.0 21.0 8.3 106.0 33.6
Median 17.3 13.00 9.24 99.60 21.6
1.0m 20.90 20.10 6.81 85.1 32.19
Previous 21.8 18.2 8.5 107.1 29.3
Median 16.8 25.80 8.36 97.20 40.5
1.5m 20.90 20.20 6.81 85.3 32.23
Previous 20.8 22.2 8.4 107.8 35.2
Median 16.8 27.60 8.36 97.20 41.3
2.0m 20.80 20.20 6.81 85.3 32.27
Previous 20.6 27.3 4.2 53.4 42.5
Median 16.1 31.50 7.62 89.40 48.4
2.5m 20.90 20.20 6.78 85.1 32.29
Previous 19.0 27.0 7.9 100.2 42.1
Median 16.0 31.50 7.62 89.40 48.4
3.0m 20.80 20.30 6.60 82.3 32.37
Previous 18.9 33.0 0.2 2.8 50.2
Median 16.0 32.10 7.03 84.10 49.1
3.5m 20.10 20.50 5.31 66.3 32.72
Previous 17.2 32.1 7.8 97.4 49.1
Median 16.0 32.10 7.19 84.60 49.1
4.0m 19.70 21.40 1.17 10.6 34.10
Previous 18.4 28.2 0.3 3.8 43.6
Median 14.8 31.00 6.94 81.00 47.7

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 9 8.0
Previous 0.1 9 7.0
Median 0.1 10 8.2
Bottom 4.0 17 8.0
Previous 3.8 9 6.9
Median 3.6 9 7.9

Other details

Max depth 4.20
Previous 3.90
Median 3.70
Flow estimate N/A

Observation Documents

Link Date File name Description

Download 		17-03-2024 09:34 img20240317_09184450.jpg

Preceding Observations

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