Observation details

Overview

Estuary Hopkins River Estuary
Site Site one (Hopkins River Bridge)
Observation ID #11294
Date and Time Saturday 17th June 2017 10:05am
Approved Approved

Notes

The pH meter would not calibrate. So I read the values of the two pH calibration standards and found the meter reading 0.2 pH units high. So we deducted 0.2 units from each sample reading and recorded these as the "corrected" values.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 9.50 8.20 13.05 120.4 14.05
Previous 13.8 9.6 9.9 102.2 16.3
Median 17.7 9.60 9.95 102.20 16.3
0.5m 9.50 8.20 13.05 120.3 14.09
Previous 17.7 22.2 8.9 106.1 35.2
Median 17.7 4.50 9.17 99.50 8.1
1.0m 11.00 9.50 10.74 103.2 16.19
Previous 14.4 23.7 5.6 63.2 37.0
Median 17.8 23.70 8.35 91.20 37.0
1.5m 12.80 20.80 9.15 98.7 33.46
Previous 18.1 23.5 7.3 88.6 37.0
Median 17.8 23.50 8.35 91.20 33.4
2.0m 13.70 27.30 8.13 93.4 42.51
Previous 14.4 26.2 4.6 52.6 40.9
Median 15.6 30.70 5.99 82.20 47.1
2.5m 13.80 29.40 8.15 94.4 45.42
Previous 17.6 27.4 0.1 1.3 42.2
Median 15.6 30.70 5.99 82.20 47.1
3.0m 14.00 30.80 7.34 85.9 47.08
Previous 14.6 28.8 3.0 34.6 44.6
Median 14.6 31.40 4.21 49.10 48.1
3.5m 14.10 31.50 6.28 74.1 48.23
Previous 16.9 31.4 0.1 0.7 48.1
Median 16.1 32.10 5.02 58.90 49.2
3.8m 14.10 31.90 5.90 70.0 48.86
Previous 18.2 34.3 3.8 49.1 52.0
Median 14.1 32.10 5.02 58.90 49.2

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 19 8.1
Previous 0.1 15 7.9
Median 0.1 14 7.9
Bottom 3.9 9 7.6
Previous 3.6 9 7.2
Median 3.4 9 7.7

Other details

Max depth 4.00
Previous 3.80
Median 3.50
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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