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H1 Site one (Hopkins River Bridge)

Active Physico-Chemical 01-01-2000 - 17-05-2025

Hopkins River Estuary

174 results found (Displaying 1 - 25)
Date Status Details
17 May 2025 Pending Notes:

Assisted by Fiona.

Very windy.
img20250517_16490063.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 14.20 8.80 9.20 93.7 15.00
4.5m 9.0 7.8 14.80 10.90 3.87 39.7 18.19
12 Apr 2025 Pending
img20250413_10044785.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 18.30 9.30 8.98 99.7 15.89
4.0m 9.0 7.8 17.00 23.20 4.20 49.3 36.65
21 Mar 2025 Pending
img20250323_12153369.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 20.50 9.20 7.38 84.4 15.76
4.5m 9.0 8.0 19.90 9.20 6.15 71.0 15.75
21 Feb 2025 Pending Notes:

No standard KCl, so couldn't calibrate EC. 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 8.2 20.90 9.30 8.35 98.6 15.83
4.5m 9.0 8.1 19.00 9.70 7.05 80.3 16.55
17 Jan 2025 Approved Notes:

Assisted by Fiona.

Strong SE wind
img20250117_19382888.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 23.40 10.00 8.03 99.1 17.00
4.3m 9.0 7.7 23.20 10.00 7.48 91.7 17.04
13 Dec 2024 Approved Notes:

Assisted by Fiona and Michelle

Thanks for the hard work, I hope you all have a wonderful Christmas and New Years! - Phoebe
img20241214_16190531.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 21.80 12.70 8.00 98.3 21.21
3.5m 9.0 7.7 20.20 22.80 0.36 4.8 36.21
15 Nov 2024 Approved Notes:

Assisted by Fiona

 

Very windy, southerly
img20241116_12213833.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 20.10 9.90 8.57 99.8 16.81
4.0m 9.0 7.8 18.10 23.70 0.97 11.7 37.28
21 Oct 2024 Approved Notes:

Assisted by Neil
img20241022_12270578.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.6 19.90 8.90 9.51 109.5 15.06
3.7m 9.0 8.2 16.30 27.70 6.45 75.3 43.19
21 Sep 2024 Approved Notes:

Assisted by Emily, Harriet and Teddy

River mouth just open, with large swell

 

Awesome work everyone. Great news to hear that the mouth is surviving the ongoing swells, let's hope it stays that way. Cheers, Phoebe Edwards

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.8 13.60 15.80 9.40 100.3 25.90
4.0m 9.0 7.9 13.40 26.70 7.81 88.4 41.71
17 Aug 2024 Approved Notes:

Assisted by Fiona

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 14.70 11.60 10.82 115.1 19.34
3.9m 9.0 8.0 14.00 29.10 5.52 63.3 45.04
21 Jul 2024 Approved Notes:

Assisted by Fiona

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.2 11.90 12.20 9.64 96.1 20.41
3.8m 9.0 7.9 12.60 30.20 8.47 95.9 46.56
22 Jun 2024 Approved Notes:

Fiona Spruzen, Tim and Harriot also helped sample
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.4 11.20 7.30 11.09 104.1 12.75
3.5m 9.0 8.0 12.90 26.80 6.62 72.7 41.79
25 May 2024 Approved Notes:

Artificial opening of mouth previous day.

Water movement ++

Assisted by Jarred

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 12.80 8.00 10.63 104.1 13.70
3.8m 9.0 7.7 15.20 26.50 1.85 20.7 41.12
20 Apr 2024 Approved Notes:

Also on the team Fiona Spruzen and Emily Horwill for this sampling trip

pH meter couldn't be calibrated so we used pH test strips
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.5 16.20 13.80 9.38 102.1 22.78
3.5m 9.0 7.5 16.30 17.30 5.87 65.1 28.04
15 Mar 2024 Approved Notes:

Assisted by Harriet

Very old pH strips used for pH samples, as pH metre sensor failed 

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 21.00 20.10 6.97 86.5 32.16
4.0m 9.0 8.0 19.70 21.40 1.17 10.6 34.10
16 Feb 2024 Approved Notes:

Assisted by Fiona, and Emily, Harriette and Teddy.

 

Thanks everyone.  Interesting to see some anoxic water down deep, but quite likely this time of year and given how dry it has been.  

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.0 21.50 17.90 9.49 106.8 28.95
3.8m 9.0 6.9 18.90 33.00 0.22 2.8 50.20
19 Jan 2024 Approved Notes:

Sampling assisted by Kate's daughter Reese and niece Eve
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 20.90 20.90 8.31 104.5 33.36
3.5m 9.0 7.8 17.20 32.10 7.78 97.4 49.06
15 Dec 2023 Approved
img20231217_15280748.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.5 7.9 21.40 20.90 7.63 97.7 33.27
4.0m 11.5 7.6 18.40 28.20 0.31 3.8 43.59
17 Nov 2023 Approved Notes:

Assisted by Fiona, Emily and Harriette
img20231119_16473274.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.5 19.90 15.10 8.92 106.2 24.82
3.5m 9.0 7.9 16.90 33.60 7.50 93.3 51.30
20 Oct 2023 Approved Notes:

tide "pouring out" at mouth

 

Great observation & data; very strong salt-wedge and some potential algal activity in the upper water column already!!  Thanks Jarred.
img20231022_12213644.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 8.3 23.00 9.30 12.43 153.7 15.94
3.5m 13.0 7.8 16.00 31.80 8.37 103.1 48.60
16 Sep 2023 Approved Notes:

assisted by Fiona, Emily and Harriette

 

Results look great - getting a bit saltier with reduced rainfall and streamflow by the looks!  Fantastic effort Fiona, Emily & Harriette - great that you came along & hopefully we'll see you back next month!  Thanks Jarred
img20230917_09251054.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 16.90 17.50 10.98 124.5 28.40
3.5m 9.0 8.3 14.90 32.20 9.05 108.7 49.24
20 Aug 2023 Approved Notes:

DO could not calibrate today, sites H1,2,3,4.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.0 8.4 14.10 4.00 11.86 116.8 9.21
4.2m 18.0 7.8 13.60 33.00 7.54 88.2 50.40
14 Jul 2023 Approved Notes:

h

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 26.0 7.9 11.20 1.90 10.70 99.1 3.60
3.8m 26.0 6.9 13.10 28.70 4.90 53.5 44.32
17 Jun 2023 Approved Notes:

Distinct top outward flowing layer, and inward flowing bottom layer, with changeover at approx 2 metres depth.

 

strong NE wind
img20230617_15422773.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.5 7.6 11.50 6.30 9.48 91.2
4.3m 12.5 7.6 13.90 32.90 5.81 69.6 50.10
20 May 2023 Approved
img20230520_16524661.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 14.90 27.20 8.05 94.8 43.10
3.5m 9.0 7.9 15.40 37.70 7.84 98.5 56.70
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