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B1 The Heads

Active Physico-Chemical 09-11-2007 - 05-06-2025

Barwon River Estuary

246 results found (Displaying 1 - 25)
Date Status Details
5 Jun 2025 Pending
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 13.50 38.40 10.26 96.8 54.90
3.2m 9.0 7.4 13.70 38.30 10.09 95.6 54.70
21 May 2025 Pending Notes:

Very low tide
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 12.80 38.20 10.05 92.9 54.60
2.4m 9.0 7.6 13.00 38.10 9.93 92.1 54.40
1 May 2025 Pending
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.7 16.30 38.00 9.30 92.6 54.30
2.5m 10.0 7.8 16.30 38.00 9.25 92.2 54.30
16 Apr 2025 Approved Notes:

workmen in barge - installation of new beacons. Fast outgoing tide.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 18.80 39.00 8.41 89.3 55.70
1.8m 9.0 8.0 18.80 39.00 8.37 88.9 55.70
6 Mar 2025 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 20.00 38.50 8.19 81.0 55.00
2.5m 9.0 8.2 19.90 38.50 8.14 88.0 55.00
6 Feb 2025 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 20.90 38.40 7.89 88.3 54.80
2.5m 9.0 7.9 20.80 38.40 7.86 87.6 54.90
18 Dec 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.6 18.50 38.50 8.62 90.8 55.00
2.0m 9.0 8.0 18.40 38.60 8.68 91.2 55.10
5 Dec 2024 Pending Notes:

Only top and bottom readings possible as tide flow was too fast to take measurements.  Bottom reading taken from water collected for turbidity and pH measurements. 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.4 19.70 36.10 8.52 92.4 51.50
1.9m 9.0 8.1 19.80 36.20 8.81 96.3 51.70
20 Nov 2024 Approved Notes:

We did not take deeper profile readings due to very strong outward tidal flow.

The tide was too fast to get bottom sampling also.

 

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 16.10 37.70 9.09 90.8 53.80
2.5m 9.0 16.10 37.70 9.00 89.8 53.80
7 Nov 2024 Approved Notes:

Flow was too fast to take measurements below the surface. 

2.4m reading was taken from water collected for turbidity and pH measurements. 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 16.50 38.00 9.02 92.3 54.30
2.4m 9.0 8.1 16.20 38.40 9.29 94.7 54.90
16 Oct 2024 Approved Notes:

Fast incoming tide
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 15.30 36.70 9.40 93.0 52.40
2.7m 9.0 8.2 15.10 37.30 9.57 94.4 53.30
3 Oct 2024 Approved Notes:

First 3 EC measurements are estimates as the meter would not lock in a reading
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 14.40 30.10 10.01 96.0 43.00
1.9m 9.0 7.8 14.30 32.80 10.03 96.4 46.90
5 Sep 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.5 8.0 13.00 30.20 9.90 93.4 43.10
2.3m 14.5 7.0 12.80 30.80 9.90 93.3 44.00
21 Aug 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 0.0 7.3 13.00 33.70 9.98 94.4 48.10
2.2m 0.0 8.0 13.00 35.60 9.90 93.6 50.90
1 Aug 2024 Approved Notes:

Gauge height reading overlooked 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 11.80 11.17 100.5 51.80
2.8m 9.0 7.4 11.90 11.09 100.1 51.90
17 Jul 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 13.00 37.70 10.42 98.5 53.90
2.7m 9.0 8.3 13.00 37.70 10.39 98.2 53.90
4 Jul 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.5 12.80 37.60 10.51 96.3 53.70
2.8m 9.0 8.0 13.00 37.60 10.46 96.2 53.70
19 Jun 2024 Approved Notes:

Units for EC seem to be very low. Need to check the Hach as units of measurement may have changed given we had to calibrate the meter.

Admin - agreed! EC measurements removed.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 13.20 0.00 10.09 96.1
2.8m 9.0 8.0 13.30 0.00 9.89 94.7
6 Jun 2024 Approved Notes:

Unable to conduct any measurements due to renovations of the jetty blocking access to the site.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.20 0.00 10.09 96.1
2.8m 13.30 0.00 9.89 94.7
15 May 2024 Approved Notes:

Low tide - rocks exposed - sand washed away.
Boards and edgings being replaced on pier.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.9 14.70 36.70 9.62 92.6 52.40
1.5m 10.0 8.2 14.20 36.50 9.49 91.6 52.20
2 May 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 15.00 35.60 9.52 93.2 50.90
1.6m 9.0 7.8 15.00 35.70 9.45 92.4 51.00
17 Apr 2024 Approved Notes:

PhysChem data only collected for this site on 17/4.

We called off further monitoring due to persistent rain.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 16.70 36.90 9.03 92.1 52.70
2.0m 9.0 8.4 16.80 36.80 8.89 91.1 52.60
4 Apr 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 17.10 37.50 8.94 92.1 53.60
3.0m 9.0 8.0 17.10 37.40 8.74 90.0 53.40
20 Mar 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 18.40 38.00 9.04 96.0 54.30
2.5m 9.0 8.6 18.30 38.00 9.03 95.7 54.30
7 Mar 2024 Approved Notes:

New volunteer Jim... was present but his name is not on the database
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 20.00 38.00 8.48 92.8 54.30
2.6m 9.0 8.1 19.90 38.00 8.42 92.0 54.30
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