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  4. 27-06-2018

Ba1 Jetty near mouth

27 June 2018

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

Overview

Estuary Balcombe Creek Estuary
Site Jetty near mouth
Observation ID #12222
Date and Time Wednesday 27th June 2018 09:10am
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 did not 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 did not 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 10.80 30.80 0.00 0.0 47.57 Water level very low, see notes for DO reading
Previous 12.0 25.9 2.0 22.1 40.0
Median 18.8 28.80 5.70 71.60 44.5

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 10 6.6
Previous 0.1 40 6.2
Median 0.1 10 7.6
Bottom 0.1 10 6.6
Previous 0.2 15 6.2
Median 0.5 10 7.1

Other details

Max depth 0.10
Previous 0.25
Median 0.50
Flow estimate Pool

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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