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B1 The Heads

Active Physico-Chemical 09-11-2007 - 15-05-2024

Barwon River Estuary

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227 results found (Displaying 101 - 125)
ID Date Status Details
#11824 21 Feb 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.7 19.90 37.90 7.21 79.8 54.10
1.8m 9.0 7.8 19.60 37.90 7.19 78.9 54.20
#11760 1 Feb 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 19.10 37.80 8.03 87.2 54.00
2.0m 9.0 7.8 18.90 37.90 7.82 84.5 54.20
#11721 17 Jan 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 19.80 37.00 7.77 85.3 52.80
2.2m 9.0 7.9 19.10 37.20 7.85 85.2 53.20
#11699 4 Jan 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.7 19.60 37.90 7.27 80.4 54.20
2.7m 9.0 7.8 19.30 38.10 7.24 78.8 54.40
#11676 21 Dec 2017 Approved Notes:

After the initial sampling a white viscous scum appeared on the water surface. We took a second surface sample and the turbidity reading had increased dramatically to 24 NTU.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 18.60 37.90 8.33 89.3 54.10
1.9m 9.0 7.8 18.50 37.90 8.33 89.2 54.20
#11644 7 Dec 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 18.10 36.90 8.90 96.0 52.70
1.9m 9.0 7.8 18.10 37.00 8.94 96.0 52.80
#11593 15 Nov 2017 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 17.80 37.90 9.58 102.4 54.10
2.9m 9.0 7.9 17.40 38.10 9.96 104.8 54.40
#11560 2 Nov 2017 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 15.60 38.20 9.58 96.8 54.60
3.0m 9.0 8.1 15.40 38.20 9.59 96.3 54.60
#11531 18 Oct 2017 Approved Notes:

Turbidity less than 9
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 15.50 37.20 9.95 99.9 53.20
2.6m 9.0 7.9 15.20 37.40 10.01 99.9 53.50
#11487 5 Oct 2017 Approved Notes:

Water brownish colour
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 14.70 36.30 9.43 94.3 51.90
2.5m 9.0 7.9 14.20 37.10 9.68 95.1 53.00
#11456 20 Sep 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 70.0 7.9 12.40 21.00 9.93 30.00
2.5m 70.0 7.8 12.30 24.00 10.07 94.0 34.30
#11437 7 Sep 2017 Approved Notes:

Following recent heavy rainfall, the EC/salinity were much lower than usual and the turbidity higher.  The water was a brownish colour.

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 7.8 10.30 17.15 10.00 90.2 24.50
2.4m 12.0 8.1 10.60 29.75 10.65 95.9 42.50
#11406 16 Aug 2017 Approved Notes:

Depth measurements possibly inaccurate due to strong current.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 12.50 37.73 10.50 100.5 53.90
2.3m 9.0 8.1 12.40 37.66 10.53 100.9 53.80
#11369 3 Aug 2017 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 12.30 37.87 10.48 98.4 54.10
2.7m 9.0 8.2 12.20 37.87 10.48 97.9 54.10
#11346 19 Jul 2017 Approved

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 12.50 38.43 10.06 95.4 54.90
2.7m 9.0 8.1 12.30 38.43 10.15 95.4 54.90
#11321 6 Jul 2017 Approved Notes:

Potential new Estuarywatcher Peter Curtis observed and assisted
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 13.00 38.50 10.58 100.8 55.00
3.0m 9.0 8.2 12.90 38.57 10.53 100.0 55.10
#11272 21 Jun 2017 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 14.50 38.29 9.99 97.8 54.70
2.8m 9.0 8.2 14.20 38.36 10.19 98.6 54.80
#11227 1 Jun 2017 Approved Notes:

Very low tide.  Tidal height prediction at pt Phillip Heads = 0.35m

Monitored at south end of jetty due to fast current
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 11.60 26.50 10.79 97.8 37.80
2.5m 9.0 7.5 11.40 26.50 10.80 97.3 37.90
#11173 17 May 2017 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 15.00 34.50 9.58 95.2 49.30
1.8m 9.0 8.0 14.90 34.40 9.65 95.5 49.20
#11135 4 May 2017 Approved Notes:

Water was brown colour. Turbidity clear so probably tannin in the water.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.5 14.80 27.40 9.75 95.8 39.20
2.7m 9.0 7.4 14.50 27.00 9.86 95.7 38.60
#11098 19 Apr 2017 Approved Notes:

PH device would not calibrate. 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 17.20 35.98 9.44 97.5 51.40
1.8m 9.0 17.00 35.91 9.43 96.9 51.30
#11058 6 Apr 2017 Approved Notes:

Strong outward current meant observations taken at south end of jetty.

Turbulence around the probes at 0.1m prevented the Hach meter readings from stabilising.

Problems with calibration of pH meter (it would not lock on to pH4).  Thus pH indicator strips used instead of pH meter.

Time of low tide: 12:39

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 17.80 38.10 8.70 96.0 54.40
2.9m 9.0 8.0 17.60 38.20 8.80 98.2 54.50
#10906 14 Mar 2017 Approved Notes:

Top and bottom sampling was less than 9. (I was unable to enter 'less than' or <)

I am not sure which HACH meter was used.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.7 20.90 38.01 7.34 88.1 54.30
1.6m 9.0 7.7 20.60 38.15 7.32 86.9 54.50
#10862 2 Mar 2017 Approved Notes:

Low tide time: 9:33am

Monitoring done at south end of jetty

Water level is below the bottom of the gaugeboard 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 20.60 38.20 7.30 86.3 54.50
2.5m 9.0 7.7 20.60 38.20 7.25 85.7 54.50
#10810 15 Feb 2017 Approved Notes:

Extremely low tide exposed more sand than we had seen previously opposite the jetty. A warning had been issued to boats to avoid trying to get out through the Heads.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.6 18.90 37.70 7.93 86.3 53.90
1.7m 9.0 7.7 18.90 37.70 7.92 85.9 53.80
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