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  4. 27-06-2018

Ba2 Ferrero Oval

27 June 2018

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

Overview

Estuary Balcombe Creek Estuary
Site Ferrero Oval
Observation ID #12223
Date and Time Wednesday 27th June 2018 09:42am
Approved Approved

Notes

I have had another look at the dissolved oxygen DO results for 27/6 as we were concerned about the very high readings. I went back to Augusta Street bridge the next day and took another reading which was considerably lower. Unfortunately I didn’t retest the other sites. I now believe that the meter was incorrectly calibrated so I think we should include a note to that effect on the data sheets. On re-reading the calibration data I didn’t allow enough time for the DO reading to stabilise.
I will allow more time for future calibrations. Jan Jones

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 11.70 32.60 0.00 0.0 49.90 No depth range, see notes re DO reading
Previous 14.3 26.0 1.7 20.6 41.9
Median 19.1 28.20 4.51 53.10 43.7

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 20 7.3
Previous 0.1 20 6.4
Median 0.1 15 7.8
Bottom 0.1 20 7.3
Previous 0.0 10 7.7
Median 0.4 10 7.7

Other details

Max depth 0.10
Previous 0.10
Median 0.50
Flow estimate Slow

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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