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B1 The Heads

Active Physico-Chemical 09-11-2007 - 02-05-2024

Barwon River Estuary

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225 results found (Displaying 151 - 200)
ID Date Status Details
#9770 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 9.0 8.3 9.50 33.95 11.00 96.0 48.50
1.5m 9.0 8.0 9.20 34.09 11.10 96.3 48.70
#9692 2 Jul 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 9.0 8.2 12.50 38.15 10.95 103.0 54.50
2.4m 9.0 8.5 12.30 38.22 10.90 101.8 54.60
#9646 4 Jun 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 9.0 8.0 11.55 33.25 10.45 96.8 47.50
1.5m 9.0 8.1 11.30 32.41 10.51 96.3 46.30
#9588 7 May 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 9.0 7.4 12.80 37.73 9.82 93.1 53.90
1.4m 9.0 7.7 12.70 37.80 9.80 92.9 54.00
#9465 2 Apr 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 9.0 7.7 17.00 37.66 9.59 99.1 53.80
1.5m 9.0 7.7 16.60 37.73 9.51 97.5 53.90
#9434 5 Mar 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 9.0 7.6 17.80 37.94 8.82 93.2 54.20
2.0m 9.0 8.1 17.75 37.73 8.70 91.7 53.90
#9369 5 Feb 2015 Approved Notes: Conductivity checked but calibration not required
Deeper current was outward, but flow at surface was inward - due to strong southerly wind
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 18.30 37.66 8.64 92.0 53.80
1.4m 9.0 7.7 18.00 37.66 8.75 92.3 53.80
#9298 5 Jan 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 9.0 7.9 19.70 37.45 9.49 104.0 53.50
2.0m 9.0 7.9 19.30 37.52 9.66 104.8 53.60
#9249 4 Dec 2014 Approved Notes: Salinity checked. 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 8.0 19.55 37.45 9.12 101.9 53.50
2.9m 9.0 7.9 18.90 37.52 9.39 102.1 53.60
#9193 6 Nov 2014 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 9.0 7.9 15.90 38.43 9.49 96.5 54.90
2.3m 9.0 8.1 15.50 38.50 9.64 96.9 55.00
#9145 3 Oct 2014 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 8.1 14.65 36.89 11.16 109.8 52.70
3.0m 9.0 8.1 14.45 40.39 11.27 110.1 57.70
#9096 5 Sep 2014 Approved Notes: Salinity checked but calibration not required.
Water very clear. The bottom clearly visible. This is a rare observation!
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 13.20 37.94 11.34 107.8 54.20
2.4m 9.0 7.9 13.10 37.87 11.44 108.2 54.10
#9046 7 Aug 2014 Approved Notes: EC checked, but calibration not required.
Note: Calibration check passed, but this was at a reading of 12.38 which is outside the 12.880+/-3% range of 12.49-13.27.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 12.75 36.89 11.65 109.0 52.70
2.5m 9.0 7.9 12.65 36.89 11.67 108.8 52.70
#8987 4 Jul 2014 Approved Notes: Very cold & windy. Showery. Dolphin pod observed from the Bluff.
Salinity checked. 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 8.0 11.25 32.13 11.21 103.1 45.90
2.9m 10.0 8.0 11.15 31.99 11.24 102.8 45.70
#8900 6 Jun 2014 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 9.0 8.0 13.70 36.82 10.45 99.8 52.60
2.9m 9.0 8.0 13.65 36.75 10.37 98.8 52.50
#8846 1 May 2014 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 9.0 7.6 14.65 38.08 10.04 99.3 54.40
2.5m 9.0 7.4 14.50 38.08 9.87 97.2 54.40
#8810 3 Apr 2014 Approved Notes: Hach #2 used. Lead too short to take deeper observations. Very strong outward current.
Readings from south end of jetty to enable use of van Doorn.
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 9.0 7.9 17.90 39.41 8.45 88.9 56.30
2.0m 9.0 7.9 17.90 39.27 8.37 88.0 56.10
#8760 6 Mar 2014 Approved Notes: Readings were taken at the southern end of the jetty, as the current was too strong at the side of the jetty to use the van Doorn to collect bottom water sample.
The salinity was checked but the meter did not require calibration
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 18.00 38.78 9.21 97.2 55.40
2.5m 9.0 7.8 17.90 38.85 9.07 95.7 55.50
#8705 6 Feb 2014 Approved Notes: Salinity checked, but calibration not required.
Due to the very strong outward current, dragging the van doorn and probe downstream, all samples and readings were taken from southern end of jetty.
pH meter "Upper" replaced usual meter.
Tide was very low. Large buildup of sand downstream of bridges on Ocean Grove bank
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 20.25 38.36 8.75 98.2 54.80
2.6m 9.0 7.7 19.85 38.43 8.93 98.6 54.90
#8646 2 Jan 2014 Approved Notes: Turbidity <8, but data base doesn't accept that.
Salinity check carried out, but calibration not necessary.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.0 7.5 18.15 37.66 8.92 95.9 53.80
2.5m 8.0 7.5 17.85 37.73 8.95 95.4 53.90
#8611 5 Dec 2013 Approved Notes: Outward current very strong. Bottom sample collected at ocean side of jetty, to avoid cord of Van Doorn being caught and tangled on jetty structures.
Meter checked for salinity but calibration not required.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 7.8 16.20 37.52 9.87 102.5 53.60
2.3m 11.0 7.9 16.15 37.59 9.88 102.4 53.70
#8626 7 Nov 2013 Approved Notes: 1. Strong outflow
2.Light SW wind
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 7.5 16.90 36.12 9.78 102.6 51.60
1.5m 11.0 16.50 36.33 9.93 102.7 51.90
#8627 7 Nov 2013 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.90 36.12 9.78 102.6 51.60
1.5m 16.50 36.33 9.93 102.7 51.90
#8514 6 Oct 2013 Approved Notes: Salinity checked. Calibration not required. However in the field at this site, the conductivity readings did not stabilise, and the conductivity was estimated.
Times recorded are EDT. Daylight Saving Time began 6/10/13.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 43.0 7.9 15.50 9.10 9.12 92.2 13.00
2.4m 43.0 7.6 15.15 20.30 9.50 95.3 29.00
#8472 5 Sep 2013 Approved Notes: Salinity check performed.
Salinity calibration not required
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.0 7.8 14.50 37.38 10.34 101.1 53.40
2.4m 8.0 7.8 14.30 37.38 10.41 101.2 53.40
#8422 1 Aug 2013 Approved Notes: Swift out-flowing tide. Light wind.
Conductivity check performed using 0.1M KCl. 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 7.6 13.55 37.03 10.65 102.0 52.90
1.9m 9.0 7.7 13.45 37.03 10.59 101.1 52.90
#8593 24 Jul 2013 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 11.45 25.20 11.10 99.8 36.00
0.5m 9.0 7.7 12.50 32.41 10.98 102.1 46.30
#8363 4 Jul 2013 Pending Notes:

1. Current causing angle of cable
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.4 12.50 38.20 11.58 111.1 54.50
2.5m 9.0 7.7 12.20 38.50 11.60 110.5 55.00
#8367 2 Jul 2013 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 15.00 37.10 10.52 104.5 53.00
2.7m 9.0 7.8 14.45 37.31 10.77 105.5 53.30
#8320 6 Jun 2013 Approved Notes: 1.Near high tide
2.Tide flowing in
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.0 7.9 14.65 38.36 10.79 106.8 54.80
3.0m 8.0 7.9 14.65 38.71 10.79 106.7 55.30
#8264 2 May 2013 Approved Notes: 1.Office Hach meter used
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.0 7.8 14.60 37.38 9.06 94.6 53.40
1.5m 8.0 7.8 14.50 37.59 9.09 94.4 53.70
#8204 4 Apr 2013 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.6 16.65 39.27 9.50 96.0 56.10
2.0m 10.0 7.6 16.65 39.34 9.54 97.3 56.20
#8098 28 Feb 2013 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 7.8 18.60 38.85 8.79 94.3 55.50
1.9m 15.0 7.8 18.80 38.64 8.65 93.1 55.20
#8054 4 Feb 2013 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.8 20.30 39.06 9.38 103.5 55.80
1.5m 10.0 7.8 20.15 38.99 9.46 103.9 55.70
#8014 8 Jan 2013 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.8 20.65 38.43 8.90 101.0 54.90
2.0m 10.0 7.8 20.50 38.43 8.91 100.6 54.90
#7942 3 Dec 2012 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.9 18.35 37.31 9.23 99.0 53.30
2.0m 10.0 7.9 18.25 37.24 9.20 98.3 53.20
#7116 6 May 2012 Approved Notes: Full length of meter lead used for reading at 3m.
Current very strong, so dropping the weight to the Van Doorn did not work for collection of a bottom sample
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.1 15.35 38.57 10.65 106.5 55.10
3.0m 10.0 15.30 38.43 10.63 106.4 54.90
#6711 8 Feb 2012 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.7 21.10 39.20 9.99 112.0 56.00
1.5m 10.0 8.1 21.00 39.06 10.06 113.2 55.80
#6382 2 Dec 2011 Approved Notes: Salinity was checked and found to be within the acceptable range, thus calibration was not performed
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 17.40 31.64 11.22 116.5 45.20
1.6m 10.0 17.65 32.06 11.31 117.8 45.80
#6221 19 Oct 2011 Approved Notes: Salinity check was within range, so salinity 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 8.0 15.90 35.28 10.60 106.4 50.40
1.5m 10.0 16.05 35.70 10.57 106.5 51.00
#5722 22 Jun 2011 Approved Notes: DO % readings difficult to read due to condensation in display
Bottom sample not possible with equipment provided
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.0 10.10 32.13 11.29 100.9 45.90
1.3m 10.0 10.15 32.13 11.24 100.6 45.90
#5541 23 May 2011 Approved Notes: Top sample for turbidity and pH taken at shoreline adjacent to the jetty.
Sampling form jetty not possible with sampling bottle on pole. Bottom sampling not possible either.
Although low tide was some 20mins prior to monitoring, the current was still flowing out.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.5 14.05 33.11 9.33 92.1 47.30
1.0m 10.0 14.05 33.11 9.29 91.7 47.30
#5421 18 Apr 2011 Approved Notes: Water too low to reach with bottle on pole at this site. Thus, turbdity and pH not recorded.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.05 33.88 11.65 123.6 48.40
1.8m 18.05 33.88 11.63 123.3 48.40
#5328 23 Mar 2011 Approved Notes: Conductivity (12.81mS/cm) - checked at ambient/room temperature.
Outward current was very strong.
Top-bottom sampling was not possible. Jetty -water distance too great to use sampling bottle on pole. Hence no turbidity or pH readings.
Probe leads also too short to make readings at deeper depths
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.70 33.74 7.96 86.6 48.20
1.5m 18.60 33.74 7.98 86.6 48.20
#5181 23 Feb 2011 Approved Notes: Strong downstream current.
Overcast, mild, light wind.
Lead too short to reach 1.8m ie 10cm above bottom sample.
Require Van Dorn for top and bottom samples
B1.20110223.1.Southeast
B1.20110223.1.Southeast
B1.20110223.2.Northwest
B1.20110223.2.Northwest
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.0 18.00 32.20 8.07 84.9 46.00
1.5m 10.0 17.75 32.06 8.02 83.7 45.80
#5435 21 Jan 2011 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 8.0 20.40 32.41 7.88 88.6 46.30
2.0m 20.0 8.0 19.65 33.32 8.42 92.8 47.60
#4560 10 Sep 2010 Approved Notes: very strong outward current where not able to test any depth other than top two as weights just not heavy enough to take gear down.
very large plume as a week after very large rain event.
cloudy and cold.
southerly wind large assortment of birdlife.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 30.0 8.0 13.60 32.62 11.23 106.6 46.60
0.5m 30.0 13.50 32.62 11.30 109.8 46.60
#4559 16 Aug 2010 Approved Notes: Very cold so impossible to calibrate

Cloudy cold strong NW winds. no birds,or people tide turning not 2 hours after turning as it should be not ideal time to take measurements but you do what you can
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.0 12.30 33.11 10.95 102.6 47.30
3.0m 10.0 8.0 12.10 32.76 10.96 101.9 46.80
#3403 20 Mar 2010 Approved Notes: some cloud cover
strong tide out
no fish caught by fishers
southerly breeze
construction work on bridge continuing but not working today
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 21.30 35.28 8.86
2.5m 10.0 21.30 35.21 8.80
#3402 21 Feb 2010 Approved Notes: incoming tide infact almost full (OPPS)
brisk southerly
slight chop
swimmers, many kids
no fish caught by fishers
sunny
lots of flying insects

NOTE hach 2 reports D.O. (mg/l) as 1.9% I have written as 10.9% I believe the hach maching is not showing the 0 This needs to be checked
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 22.20 35.14 10.90
2.8m 10.0 21.60 35.07 10.90
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