Barwon River Estuary

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217 results found (Displaying 101 - 150)
ID Date Status Details
#11758 1 Feb 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.2 8.4 17.20 21.90 6.95 72.3 31.30
0.5m 12.2 8.4 17.80 24.70 2.79 29.6 35.30
#11723 17 Jan 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 8.9 22.00 22.90 8.22 93.4 32.70
0.3m 12.0 9.2 21.60 22.90 8.22 93.4 32.70
#11701 4 Jan 2018 Approved Notes:

Lots of algae on the water's surface. The algae was covered with flies. Also some fine scum on the surface.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 8.5 21.20 20.90 9.22 103.8 29.90
0.5m 13.0 8.4 21.20 21.10 8.95 100.9 30.20
#11678 21 Dec 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 8.0 20.50 10.80 6.48 71.9 15.45
0.6m 12.0 8.9 20.70 16.70 11.13 124.6 23.90
#11646 7 Dec 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 27.0 8.1 20.90 4.90 8.49 96.5 7.00
0.5m 27.0 8.2 20.80 5.90 8.68 98.6 8.40
#11596 15 Nov 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 80.0 8.5 22.50 2.80 7.64 89.0 3.94
0.4m 80.0 8.4 22.50 2.80 7.60 88.6 3.94
#11562 2 Nov 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 25.0 8.3 16.30 3.50 8.98 91.7 5.07
0.5m 25.0 8.2 16.40 3.70 8.84 90.6 5.29
#11489 5 Oct 2017 Approved Notes:

Water brownish coloured

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 47.0 7.7 17.40 1.20 7.66 80.5 1.69
0.3m 47.0 7.8 17.30 1.20 7.66 80.4 1.69
#11458 20 Sep 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 95.0 7.7 11.50 1.00 7.70 70.1 1.45
0.5m 95.0 7.5 11.50 1.00 7.65 70.1 1.44
#11439 7 Sep 2017 Approved Notes:

Following recent heavy rainfall, the EC/salinity were 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 33.0 8.0 10.50 3.12 10.30 92.4 4.46
0.5m 33.0 7.8 10.40 3.30 10.10 90.5 4.72
#11671 16 Aug 2017 Approved Notes:

High winds.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 65.0 8.0 12.10 10.00 9.21 88.1 14.28
0.7m 65.0 8.0 11.90 10.00 9.24 87.7 14.30
#11371 3 Aug 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 8.3 9.00 4.60 11.46 98.9 6.60
0.3m 17.0 8.5 9.90 8.30 12.39 109.4 11.90
#11323 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 14.0 8.8 8.30 8.37 12.30 104.8 11.95
0.5m 14.0 8.9 8.30 8.47 12.39 105.5 12.10
#11274 21 Jun 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.9 12.30 3.17 14.03 130.0 4.53
0.5m 15.0 8.9 12.30 3.17 13.92 128.9 4.53
#11229 1 Jun 2017 Approved Notes:

Unusual observation: Top turbidity reading considerably greater than bottom reading. May be due to muddy run-off following recent rain.

Many waterbirds.  Mainly ducks also cormorants and swans.  Shooters arrived to launch boat as we departed.

 

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 26.0 8.2 11.00 11.90 12.77 113.6 16.94
0.4m 26.0 8.4 12.00 15.70 14.73 134.1 22.50
#11175 17 May 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 37.0 8.2 14.10 2.80 9.05 88.0 3.99
0.5m 37.0 8.0 14.20 2.80 8.98 87.4 4.01
#11137 4 May 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 70.0 7.4 14.10 1.90 7.30 70.3 2.76
0.5m 70.0 7.2 14.90 7.50 1.89 18.5 10.69
#11100 19 Apr 2017 Approved Notes:

PH meter not calibrating

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 17.70 14.28 11.66 121.7 20.40
0.4m 9.0 19.30 19.95 14.12 151.9 28.50
#11081 11 Apr 2017 Approved Notes:

Water clear of visible macro algae

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.2 15.40 25.20 7.84 78.0 36.00
0.4m 15.10 25.97 7.96 78.9 37.10
#11060 7 Apr 2017 Approved Notes:
  • large rafts of macro algae throughout the lake.
  • large numbers of black swans and cootes feeding on the lake.
  • very windy conditions.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.7 19.50 23.80 13.31 145.0 34.00
0.4m 9.0 8.7 19.50 23.73 14.07 153.1 33.90
#11063 6 Apr 2017 Approved Notes:

Unable to calibrate pH meter at pH4 - meter wouldn't lock on to pH4.

pH indicator strips used to record pH.

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 9.0 20.20 28.60 14.43 170.0 40.80
0.4m 9.0 8.5 20.20 28.70 15.24 180.0 41.00
#10908 14 Mar 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.4 23.40 22.75 8.20 103.4 32.50
0.5m 9.0 8.4 23.80 27.58 9.01 113.8 39.40
#10864 2 Mar 2017 Approved Notes:

Low tide time: 9:33am

Surface of Lake Connewarre covered with algae - pale greenish yellow with lots of trapped bubbles (see photographs)

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.6 23.20 25.80 8.03 99.2 36.90
0.5m 9.0 8.6 24.20 27.80 7.05 89.2 39.70
#10811 15 Feb 2017 Approved Notes:

The depth markers on the Hach meter cords do not correspond with the 50cm measurements on the weighted rope.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 7.2 20.30 27.00 12.53 139.8 38.50
0.4m 11.0 7.5 20.40 26.70 13.44 150.3 38.10
#10772 2 Feb 2017 Pending
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 21.10 30.90 10.37 117.0 44.20
0.5m 9.0 8.2 21.10 30.90 10.50 118.5 44.10
#10743 18 Jan 2017 Pending Notes:

Water very clear.

Should take the remote sampler to B2 and B5.

As you can see, today's data collection reflects we are still in learning mode.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 21.20 30.73 9.08 102.7 43.90
0.5m 9.0 8.2 21.30 30.66 9.08 102.8 43.80
#10666 5 Jan 2017 Pending Notes:

Time of low tide - 10.00

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 21.0 7.8 21.20 30.73 9.08 102.7 43.90
0.5m 21.0 7.7 21.30 30.66 9.08 102.8 43.80
#10753 13 Dec 2016 Approved Notes:

Not 100% sure if its Hach 1 or Hach 2?

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 42.0 8.0 19.10 15.40 8.00 86.9 22.00
0.5m 42.0 7.8 19.20 15.34 7.76 84.5 21.91
#10587 1 Dec 2016 Approved Notes:

Time of low tide: 08:12

Conversion to salinity from EC should be x 0.7, but seems to be x 0.64

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 26.0 8.2 20.10 8.37 7.94 88.7 11.95
0.4m 26.0 8.1 19.90 8.71 7.18 79.6 12.44
#10565 23 Nov 2016 Approved Notes:

The multi parameter meter had been used previously on this date, but program would not allow me to check this box.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 25.0 8.0 18.30 9.30 6.85 72.8 13.25
1.6m 25.0 7.9 18.50 9.30 6.79 72.7 13.29
#10536 3 Nov 2016 Approved Notes:

Very low EC

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 40.0 7.6 14.20 0.79 7.52 73.4 1.13
0.6m 40.0 7.7 14.20 0.79 7.36 71.8 1.12
#10533 2 Nov 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 64.0 7.9 14.90 0.75 8.05 79.9 1.07
0.6m 64.0 7.9 14.80 0.75 7.96 78.9 1.07
#10605 6 Oct 2016 Approved Notes:

Sea Eagle circling overhead

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 90.0 7.1 12.60 0.69 7.92 74.9 0.99
1.0m 90.0 7.1 12.50 0.72 8.06 75.9 1.03
#10609 1 Sep 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 50.0 7.6 13.30 1.48 8.48 81.2 2.12
0.3m 50.0 7.1 13.10 1.55 8.28 7.9 2.21
#10439 4 Aug 2016 Approved Notes:

EC readings much lower than usual

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 54.0 7.9 10.00 1.49 9.21 80.8 2.12
0.5m 54.0 7.8 10.00 1.49 9.18 80.4 2.12
#10669 12 Jul 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.00 1.49 9.21 80.8 2.12
0.5m 10.00 1.49 9.18 80.4 2.12
#10603 8 Jul 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 25.0 8.2 10.70 3.62 11.53 103.9 5.17
0.5m 25.0 7.4 11.30 6.83 62.3
#10346 2 Jun 2016 Approved Notes:

EC checked, but calibration not required

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 11.00 28.00 10.57 95.2 40.00
0.5m 9.0 8.2 11.60 33.39 11.42 103.9 47.70
#10292 5 May 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 41.0 7.7 12.80 36.61 8.80 83.7 52.30
0.6m 41.0 8.0 12.70 36.68 8.80 83.5 52.40
#10240 7 Apr 2016 Approved Notes:

Salinity checked, but calibration not required

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 7.8 15.80 40.25 8.11 81.7 57.50
0.3m 14.0 7.9 15.80 40.32 8.15 82.0 57.60
#10182 3 Mar 2016 Approved Notes: EC checked, but calibration not required.
Initial readings for DO at 0.1m, were unexpectedly different from those at 0.5m, considering the water was very turbulent. We repeated the readings at 0.1m in triplicate,and decided to eliminate the initial readings (outliers) and averaged the later three readings.
Raw data is recorded on the reverse side of the data sheet.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 34.0 7.6 21.15 42.49 4.94 55.6 60.70
0.5m 34.0 7.6 21.15 42.49 4.67 52.5 60.70
#10130 4 Feb 2016 Approved Notes: Salinity checked but calibration not required.
Note: High turbidity
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 7.9 19.60 37.10 5.48 60.0 53.00
0.4m 20.0 7.8 19.60 37.10 5.45 59.6 53.00
#10051 7 Jan 2016 Approved Notes: EC checked, but calibration not required.
It was difficult to collect a bottom sample without disturbing the algae and sediment. This had contributed to a high bottom turbidity reading.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 21.20 40.67 9.14 102.8 58.10
0.2m 9.0 7.9 21.25 40.53 9.17 103.1 57.90
#9974 3 Dec 2015 Approved Notes: EC checked but calibration not required.No turbidity reading taken for bottom sample. Turbidity tube leaking.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 17.10 32.06 7.82 80.5 45.80
0.5m 9.0 8.1 17.00 32.06 7.84 80.6 45.80
#9937 6 Nov 2015 Approved Notes: Conductivity checked, but calibration not required
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 20.35 25.06 7.55 84.6 35.80
0.4m 9.0 7.8 20.50 24.99 7.50 84.1 35.70
#9866 1 Oct 2015 Approved Notes: Salinity checked but calibration not required.
At depth of 0.1m, the EC was estimated as the meter reading did not stabilise within a reasonable time.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.8 8.4 15.25 7.84 10.81 107.5 11.20
0.3m 14.8 8.4 15.20 9.51 12.06 119.6 13.58
#9827 3 Sep 2015 Approved Notes: Salinity checked, but calibration not required.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 13.05 17.57 9.43 90.0 25.10
0.5m 10.0 8.2 13.05 19.53 9.16 87.3 27.90
#9772 4 Aug 2015 Approved Notes: Salinity checked but calibration not required
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.3 8.1 9.20 19.95 12.20 105.7 28.50
0.4m 14.3 8.0 8.70 20.09 12.50 107.4 28.70
#9694 2 Jul 2015 Approved Notes: Salinity checked, but calibration not required.
Bottom very muddy - only top sample collected and measured
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 32.0 8.4 10.65 19.81 10.97 98.3 28.30
0.2m 32.0
#9648 4 Jun 2015 Approved Notes: EC checked, but calibration not required
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 29.0 8.0 10.40 19.11 11.99 107.3 27.30
0.3m 29.0 8.0 10.80 21.49 11.87 107.0 30.70
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