Barwon River Estuary

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170 results found (Displaying 1 - 100)
ID Date Status Details
#13641 18 Mar 2020 Approved Notes:

Many many waterbirds including hundreds of swans.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 19.70 10.00 9.22 101.1 14.25
0.5m 9.0 8.4 20.10 10.60 4.53 50.1 15.14
#13559 6 Feb 2020 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 18.20 20.70 10.20 108.0 29.50
0.5m 9.0 8.2 18.40 20.70 4.58 48.8 29.60
#13508 15 Jan 2020 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.0 8.4 24.00 29.10 10.30 123.4 41.60
0.5m 8.0 8.5 23.50 30.00 12.23 146.1 42.90
#13482 2 Jan 2020 Approved Notes:

Hach meter was used but numbered tag was not attached, so cannot be certain that we used our usual meter ie #1, however it has been entered above as Hach1.

Due to fast outward current, all readings were recorded at south end of jetty.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.6 21.80 27.40 9.90 112.7 39.20
0.5m 9.0 8.6 22.30 27.40 10.86 122.8 39.20
#13497 18 Dec 2019 Approved Notes:

Plentiful algae in water with occasional algal blooms.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 0.0 8.5 23.40 23.40 16.38 193.6 33.40
0.5m 0.0 8.6 23.30 23.40 16.73 197.8 33.40
#13457 5 Dec 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 8.1 16.00 20.00 9.89 101.5 28.50
0.5m 13.0 8.2 16.10 20.00 9.84 101.1 28.50
#13417 20 Nov 2019 Approved Notes:

(DM -  top turb 0 removed)

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.6 19.50 7.50 12.74 139.8 10.66
0.5m 8.6 19.70 7.80 13.04 143.4 11.21
#13386 7 Nov 2019 Approved Notes:

Flow slow despite surface turbulence due to strong wind.

Hundreds  (?thousands) of Eurasian Coot in the middle of Lake Connewarre

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 40.0 8.3 13.60 13.50 10.47 102.5 19.34
0.6m 40.0 8.4 13.60 13.50 10.46 102.5 19.34
#13356 3 Oct 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 26.0 8.7 18.10 1.50 12.00 127.7 2.18
0.5m 26.0 8.8 17.80 1.50 12.13 128.0 2.20
#13324 18 Sep 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 35.0 8.6 13.20 13.40 16.70 158.8 19.21
0.3m 35.0 8.6 12.80 13.40 16.17 151.8 19.18
#13309 5 Sep 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 36.0 8.2 13.90 1.10 12.19 118.8 1.54
0.5m 36.0 8.4 13.80 1.10 12.14 118.0 1.54
#13266 21 Aug 2019 Approved Notes:

DM - top 180NTU and bottom 370NTU removed until datasheet reviewed

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.5 11.90 0.90 10.72 99.6 1.33
0.7m 6.9 11.40 0.90 10.62 97.5 1.34
#13220 1 Aug 2019 Approved Notes:

Flow estimated as Pool although surface disturbed by wind.

Water discoloured - brown

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 7.7 10.60 1.50 10.89 96.7 2.10
0.3m 20.0 7.7 10.60 1.50 10.95 97.1 2.10
#13201 17 Jul 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 58.0 7.8 10.10 1.50 10.34 92.2 2.17
0.4m 58.0 7.6 10.10 1.50 10.27 91.6 2.17
#13178 4 Jul 2019 Approved Notes:

Flow considered as 'pool' although surface disturbed by brisk southerly breeze

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 48.0 7.7 10.00 1.80 10.81 94.2 2.63
0.4m 48.0 7.7 10.00 1.80 10.01 87.2 2.63
#13114 6 Jun 2019 Approved Notes:

Large numbers of Australasian Grebe, Eurasian Coot and Black Swans

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 42.0 7.6 10.90 8.20 11.45 102.1 11.67
0.3m 42.0 7.7 10.80 8.70 11.46 101.9 12.44
#13071 15 May 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 0.0 8.0 14.70 20.00 9.54 92.9 28.50
0.4m 0.0 8.5 15.00 26.90 9.37 91.8 38.40
#13072 15 May 2019 Pending Notes:

Ph sensor would not calibrate. Completed electrode conditioning and seems to be working again.

We used Ph strips as an alternative.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 0.0 8.5 13.20 22.60 10.30 97.1 32.30
1.5m 0.0 8.0 13.30 23.30 10.11 95.5 33.30
#12900 2 May 2019 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 15.90 30.00 10.04 102.4 42.90
0.5m 9.0 8.2 16.10 31.60 9.58 97.6 45.10
#12863 17 Apr 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 140.0 8.0 18.60 40.70 8.06 86.6 58.10
0.3m 140.0 8.0 18.50 40.90 8.04 86.2 58.40
#12829 4 Apr 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 16.90 38.40 12.53 128.2 54.90
0.3m 9.0 8.2 17.20 38.90 10.71 110.0 55.60
#12778 20 Mar 2019 Pending
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 0.0 8.3 20.70 37.50 6.05 67.9 53.60
0.3m 0.0 8.4 20.80 37.50 6.17 69.4 53.60
#13000 20 Mar 2019 Approved Notes:

IEC Site. Mouth Open.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 1.2 8.6 21.00 34.90 4.90 67.0 52.91
0.4m 1.2 8.6 21.00 34.90 4.89 87.0 53.01
#12746 7 Mar 2019 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.6 16.10 36.50 9.95 100.7 52.20
0.4m 9.0 8.6 17.00 38.60 9.75 100.7 55.20
#12713 20 Feb 2019 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 18.20 34.20 8.83 94.7 48.80
0.4m 9.0 8.4 18.30 34.90 10.16 108.7 49.90
#12999 7 Feb 2019 Approved Notes:

IEC Site. Mouth Open. Spongy bottom.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 2.5 8.7 23.70 25.00 6.39 87.2 39.39
0.4m 2.5 8.7 24.10 26.70 6.72 90.0 42.66
#12686 7 Feb 2019 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 26.00 8.37 99.1 37.20
0.5m 9.0 8.4 24.40 30.70 9.24 111.4 43.80
#12998 16 Jan 2019 Approved Notes:

IEC Site. Mouth Open.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 2.7 8.3 25.10 21.80 7.80 107.1 34.90
0.5m 2.7 8.3 25.00 22.70 7.22 99.7 36.01
#12653 16 Jan 2019 Approved Notes:

Lots of dense mats of algae surrounding pier

Discrepancy  between 2 pieces of equipment appears to be due to differences in micro-location

 

 

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 24.80 22.90 9.21 112.4 32.70
0.5m 9.0 8.3 24.90 24.10 9.52 116.4 34.40
#12616 3 Jan 2019 Approved Notes:

Unusual reading of DO %saturation at 0.1m was double checked.

 

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.2 21.50 11.00 12.45 147.5 15.67
0.4m 15.0 8.5 22.90 13.70 21.40 250.3 19.50
#12624 19 Dec 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.0 8.2 22.50 9.00 10.77 125.2 12.82
0.4m 18.0 8.3 22.40 13.40 14.70 170.8 19.20
#12997 6 Dec 2018 Approved Notes:

IEC Site. Mouth Open.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.0 8.1 23.10 14.40 10.04 128.0 24.11
0.5m 7.0 8.2 23.90 21.60 20.00 300.0 33.95
#12575 6 Dec 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 8.1 23.20 20.00 12.74 150.1 28.60
0.4m 13.0 8.2 23.90 24.40 21.40 255.0 34.80
#12996 21 Nov 2018 Approved Notes:

IEC Site. Mouth Open.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.6 8.4 19.40 11.40 8.94 104.5 19.05
0.3m 7.6 8.5 19.80 12.30 10.77 126.7 20.59
#12546 21 Nov 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.4 19.30 12.90 10.15 111.1 18.40
0.3m 16.0 8.5 19.80 14.00 10.70 113.0 20.01
#12480 1 Nov 2018 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 17.30 15.70 9.49 98.9 22.40
0.5m 9.0 8.4 17.40 16.50 9.27 97.1 23.50
#12455 17 Oct 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.0 7.9 17.70 15.20 8.66 91.7 21.70
0.5m 19.0 8.0 17.70 15.30 8.40 88.8 21.90
#12435 4 Oct 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 8.3 14.50 11.80 9.66 94.4 16.87
0.5m 13.0 8.3 14.50 11.80 9.66 94.1 16.85
#12410 19 Sep 2018 Approved Notes:

Water rat observed swimming past observation deck. Disappeared into reeds.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 23.0 8.1 12.20 8.50 10.07 94.6 12.11
0.5m 23.0 8.1 12.10 8.50 10.02 93.9 12.10
#12377 6 Sep 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 100.0 7.8 12.40 2.40 9.24 87.3 3.36
0.5m 100.0 7.7 12.30 2.40 9.21 86.9 3.37
#12333 15 Aug 2018 Approved Notes:

Water was very muddy.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 200.0 7.9 10.90 1.90 9.53 87.8 2.78
0.6m 200.0 7.7 10.90 1.90 9.59 88.0 2.65
#12304 2 Aug 2018 Approved Notes:

Surface very choppy, making it difficult to estimate flow rate

 

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 60.0 7.7 9.60 3.80 10.34 90.7 5.42
0.5m 60.0 7.7 9.50 3.80 10.35 90.7 5.42
#12269 18 Jul 2018 Approved Notes:

For OHS, sampled from the southern end of pontoon. Water splashing over with wind (hazard) Risk: getting too cold or slipping.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 90.0 7.7 8.90 7.90 9.77 84.8 11.33
0.6m 90.0 7.7 8.80 8.00 9.77 84.5 11.44
#12240 5 Jul 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 8.0 10.40 15.60 10.03 90.4 22.30
0.7m 12.0 8.0 10.40 16.00 9.94 89.5 22.80
#12250 20 Jun 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 9.70 27.00 10.80 95.1 38.60
0.6m 9.0 8.0 11.00 30.30 10.60 96.0 43.30
#12122 7 Jun 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 48.0 8.1 12.50 25.60 10.63 99.4 36.60
0.5m 48.0 8.1 12.40 25.70 10.11 94.2 36.70
#12052 16 May 2018 Approved Notes:

Only one set of measurements was taken as the water level was so low.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.5 7.9 12.50 25.60 10.63 99.4 36.60
0.5m 12.5 7.9 12.40 25.70 10.11 94.2 36.70
#12013 3 May 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 25.0 8.0 15.10 34.40 7.94 79.7 49.20
0.5m 25.0 8.0 15.10 33.90 7.72 77.5 48.50
#11975 18 Apr 2018 Approved Notes:

Please Note that measurements at B2 was not possible due to site being inaccessible due to crowding from recreational fishermen.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.8 15.30 36.60 10.25 102.1 52.30
0.5m 10.0 7.9 15.20 36.60 10.33 102.6 52.30
#11940 5 Apr 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 18.40 35.90 6.99 74.6 51.30
0.5m 9.0 7.9 18.60 35.90 6.74 72.3 51.30
#11919 23 Mar 2018 Approved Notes:

Checked reading of D.O.(Sat %) twice but obtained same reading.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 7.9 19.00 33.60 10.83 117.0 48.00
0.4m 16.0 8.0 19.50 35.20 13.95 152.2 50.30
#11843 1 Mar 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 19.10 30.40 4.75 51.5 43.40
0.4m 10.0 8.3 19.20 30.50 4.44 48.2 43.50
#11826 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 8.4 21.10 25.10 9.34 105.4 35.80
0.5m 9.0 8.5 20.80 25.50 11.13 124.8 36.40
#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
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