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H3 Site three (Mahoneys Road)

Active Physico-Chemical

Hopkins River Estuary

192 results found (Displaying 1 - 25)
Date Status Details
16 Oct 2026 Approved Notes:

Limited depth due to very low estuary water levels at present, but interesting that the same trend seen in the upper water column at H1 and H2 has also been measured here.  This includes high D.O. levels due to algae growth; driven by receding flows, warming water and nutrient rich conditions. 
img20261018_12191405.pdf
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 17.80 14.39 177.0 28.75
0.7m 9.0 8.2 20.30 19.40 13.20 169.1 30.71
6 Sep 2026 Approved
img20260906_14521208.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.2 14.20 2.60 9.61 94.0 4.78
1.2m 15.0 8.2 14.30 2.60 9.38 92.1 4.80
16 Aug 2026 Approved
img20260816_16193880.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 7.9 13.70 1.90 9.29 88.5 3.58
1.0m 12.0 7.8 13.00 2.30 4.54 42.8 4.49
19 Jul 2026 Approved
img20260719_16263660.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 28.0 8.2 11.70 1.80 9.77 89.0 3.46
1.0m 28.0 7.9 11.60 4.90 5.46 49.0 11.28
21 Jun 2026 Approved
img20260621_17135946.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 13.00 2.30 9.52 90.1 4.24
1.3m 9.0 8.0 13.10 4.50 6.49 62.7 9.77
17 May 2026 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 16.50 9.60 9.80 105.9 16.24
1.5m 9.0 8.4 15.90 10.50 9.16 98.1 17.69
19 Apr 2026 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 16.20 11.60 10.73 117.0 19.41
1.7m 9.0 8.4 16.00 13.70 7.75 84.2 22.67
20 Mar 2026 Approved

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 9.1 21.00 14.80 8.47 103.0 24.37
2.0m 9.0 9.1 20.70 14.90 8.01 93.5 24.50
20 Feb 2026 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 8.3 24.30 16.50 8.59 113.8 26.96
1.8m 11.0 8.3 22.40 17.60 9.62 122.6 28.44
16 Jan 2026 Approved Notes:

Assisted by Fiona and Gilly
img20260117_11534932.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 34.0 8.0 21.80 18.70 7.82 99.1 30.07
1.5m 34.0 8.1 21.70 18.70 7.71 97.9 30.09
19 Dec 2025 Approved
img20251220_17562280.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 8.5 25.70 13.50 9.54 127.9 22.45
1.0m 14.0 8.4 25.30 13.80 9.00 119.0 22.82
21 Nov 2025 Approved Notes:

Assisted by Fiona

Still very windy
img20251122_15023115.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 29.0 8.3 19.30 5.10 11.23 124.7 8.97
1.5m 29.0 8.3 19.20 5.60 11.14 124.2 9.92
17 Oct 2025 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.3 18.10 7.30 10.91 120.7 12.66
1.2m 15.0 8.3 18.20 7.40 11.61 128.4 12.78
19 Sep 2025 Approved Notes:

Windy!
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.0 8.0 15.80 19.40 9.88 113.6 31.09
1.3m 18.0 8.0 15.80 19.40 10.28 117.8 31.21
15 Aug 2025 Approved
img20250815_20530122.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 7.8 13.50 23.60 8.58 95.5 37.27
1.0m 14.0 7.8 13.50 23.60 8.52 94.7 37.29
11 Jul 2025 Approved Notes:

Assisted by Fiona
img20250711_18001214.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 11.10 14.80 11.38 113.2 24.39
2.0m 9.0 8.4 11.70 20.50 9.17 94.3 32.81
13 Jun 2025 Approved
img20250613_12391958.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 8.30 2.80 10.70 91.0 5.23
1.3m 10.0 8.2 11.80 7.30 8.50 81.0 12.70
17 May 2025 Approved Notes:

Assisted by Fiona
img20250731_17311402.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.5 8.2 14.60 8.50 9.41 96.5 14.58
2.0m 10.5 8.1 14.70 8.60 9.26 95.2 14.63
12 Apr 2025 Approved
img20250413_10064014.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 18.60 8.50 10.48 116.7 14.60
1.5m 9.0 8.2 18.60 8.50 10.63 118.2 14.61
21 Mar 2025 Approved
img20250323_12172248.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 20.70 8.90 7.75 90.2 15.31
2.0m 9.0 8.3 20.70 9.00 7.12 82.9 15.32
21 Feb 2025 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 21.30 9.60 8.52 101.5 16.33
2.0m 9.0 8.2 20.10 9.60 7.98 93.2 16.36
17 Jan 2025 Approved Notes:

Assisted by Fiona

Strong SE wind
img20250117_19411879.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 8.1 24.00 9.80 7.70 96.0 16.61
2.0m 11.0 8.1 24.00 9.80 7.23 90.0 16.62
13 Dec 2024 Approved Notes:

Assisted by Fiona and Michelle
img20241214_16210378.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 23.20 10.30 8.23 102.6 17.54
1.3m 9.0 8.2 23.20 10.40 8.05 100.0 17.62
15 Nov 2024 Approved Notes:

Assisted by Fiona
img20241116_12233178.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 20.70 9.60 8.77 102.3 16.31
1.7m 9.0 8.3 20.40 9.70 8.59 100.5 16.51
21 Oct 2024 Approved Notes:

Assisted by Neil
img20241022_12284734.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 21.50 8.60 9.34 110.6 14.69
1.0m 9.0 8.6 20.60 8.90 10.14 118.4 15.16
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