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M2 Fonterra Floating Pontoon

Active Physico-Chemical 17-11-2013 - 10-01-2026

Merri River Estuary

134 results found (Displaying 1 - 25)
Date Status Details
10 Jan 2026 Approved Notes:

Kerrie Robertson Sampler. 

 

Very windy-Water choppy.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 7.6 21.40 1.40 7.26 82.8 2.74
1.0m 15.0 7.9 21.30 1.40 6.79 77.0 2.74
13 Dec 2025 Pending Notes:

Chestnut teal ducks, coots.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.70 1.40 9.31 104.4 2.64
1.5m 20.60 1.40 7.35 90.1 2.65
8 Nov 2025 Approved Notes:

Purple swamphen, pacific black ducks, chestnut teal, black cormorants(small), masked lapwing, reed warbler(voice), coot.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 7.8 16.50 1.50 8.49 87.8 2.92
1.9m 20.0 7.8 16.50 1.50 8.04 81.5 2.91
11 Oct 2025 Approved Notes:

Purple swamp hens, little black cormorants, reed warblers, pacific black duck, raven.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 8.1 14.80 1.20 14.80 148.0 2.64
1.8m 20.0 7.9 14.80 1.40 14.56 142.2 2.64
13 Sep 2025 Approved Notes:

Swallows, Blue wrens, Raven, Purple swamphens, Little black cormorant, Little pied cormorant, Pacific black duck.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 7.2 14.10 1.50 18.16 178.5 2.88
1.5m 17.0 8.0 14.10 1.50 17.42 169.2 2.89
12 Jul 2025 Approved Notes:

Hoary headed grebes, pacific black ducks, coots, pied cormorant, purple swamp hens, chestnut teals, white ibis, greater cormorant.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 7.5 9.60 2.00 11.35 100.6 3.71
2.0m 11.0 7.8 9.60 2.00 11.14 98.8 3.86
14 Jun 2025 Approved Notes:

Kerrie Robertson part of team.
2025_08_16_10_50.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.1 9.80 1.10 8.75 79.0 2.21
2.0m 10.0 7.1 10.00 1.20 8.42 75.9 2.34
10 May 2025 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 23.0 6.9 14.50 1.50 8.91 87.5 2.81
2.0m 23.0 6.9 14.20 1.50 3.81 37.2 2.81
12 Apr 2025 Approved Notes:

Pacific black duck, chestnut teal, purple swamphens, dusky moorhens, swallows, little pied cormorant, greater cormorant, little black cormorant, eurasian coots.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 7.4 17.60 1.60 8.89 93.2 2.98
1.9m 17.0 7.4 17.10 1.60 7.80 80.5 2.97
15 Mar 2025 Approved Notes:

Little ravens, pacific black ducks,purple swamphens, moorhens, swallows.

 

Datasheet reloaded by J.Obst when validating data, as original appeared incorrect (MC1)
0391_001.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 6.7 22.60 1.70 4.22 49.8 3.19
2.0m 15.0 6.6 22.50 1.70 2.47 26.0 3.19
8 Feb 2025 Approved Notes:

Moorhen, Swamphen, Pacific black duck (many), Coot.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.0 7.7 21.70 1.70 6.40 73.6 3.22
1.7m 19.0 7.7 21.80 1.70 6.13 70.6 3.22
11 Jan 2025 Approved Notes:

Welcome swallows 4  fledglings.

Coots, Magpies

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.3 22.90 1.50 11.33 132.8 2.97
1.5m 9.0 8.1 22.40 1.60 8.24 96.5 3.00
7 Dec 2024 Approved Notes:

Pacific black ducks, Teal ducks.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 7.9 28.80 1.40 8.77 104.9 2.76
1.5m 15.0 7.9 22.70 1.40 8.91 103.4 2.75
9 Nov 2024 Approved Notes:

Pacific black duck, purple swamp hen, swallows, chestnut teal.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.1 18.30 1.40 10.41 110.6 3.55
1.5m 15.0 8.4 18.30 1.90 8.46 88.6 3.55
12 Oct 2024 Approved Notes:

Kerrie Robertson part of team.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 33.0 8.3 16.80 1.70 12.78 132.0 3.24
1.5m 33.0 8.4 16.60 1.70 10.97 112.9 3.25
14 Sep 2024 Approved Notes:

Thanks for the testing!  Interesting DO and turbidity results; high readings suggests a algal bloom happening!

Thanks

Jarred

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 50.0 8.2 13.00 1.70 15.80 152.5 3.29
1.5m 50.0 8.3 13.00 1.70 15.57 150.1 3.31
10 Aug 2024 Approved Notes:

Australasian grebes, Moor hens, Greater cormorants, Black faced cormorant, Australasian coot, Pacific black duck & Purple swamp hens.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 30.0 9.0 11.10 1.70 16.48 150.9 3.29
1.5m 30.0 9.1 11.00 1.70 16.04 145.3 3.31
13 Jul 2024 Approved Notes:

Royal spoonbill (2), grebe, pacific black ducks, dusky moorhen, new holland honey eaters, little pied cormorant, greater egret.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 10.40 1.40 8.53 75.3 2.75
1.5m 10.0 8.1 10.30 1.40 8.51 75.2 2.75
8 Jun 2024 Approved Notes:

Pied cormorants, australasian grebe, moorhens, australasian coots, purple swamp hens, great cormorant.

Great results - highly oxygenated and well mixed - just need some more rain and flow!  Excellent bird observations again too.  Thanks Jarred.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.0 11.60 1.30 13.87 128.0 2.56
1.5m 16.0 8.0 11.50 1.30 12.74 116.5 2.59
11 May 2024 Approved Notes:

Birds present at site

Australian coots

Masked lapwings

pacific black ducks

little black cormorants

pied cormorants

Australian grebes 

moorhens

 

*With new sampler difficulty turbidity at bottom may be increased.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.4 14.70 1.30 17.05 163.5 2.48
1.5m 16.0 8.4 14.50 1.20 13.80 137.9 2.36
13 Apr 2024 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 16.70 1.40 6.48 67.5 2.66
1.5m 15.0 8.0 16.70 1.40 5.70 59.5 2.67
16 Mar 2024 Approved Notes:

Birds present at site

Pacific black duck

Little pied cormarant

Dusky moorhen

Chestnut Teal

Coots
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 8.1 20.20 1.40 5.50 60.7 2.66
1.7m 15.0 8.1 20.00 1.40 4.32 47.1 2.66
10 Feb 2024 Approved Notes:

There were two men fishing off the pontoon using rope with big hooks, dragging lots of items from the bottom of the river bed.  

Thanks for the report; very strange, and nothing that i've seen before.  I have seen people searching for old bottles, but not scrap metal.  
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 8.2 22.00 1.20 6.85 78.5 2.35
1.5m 20.0 8.2 21.90 1.20 5.73 67.0 2.35
13 Jan 2024 Approved Notes:

purple swamphen, hooded lapwing, pacific black duck, little grobe
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 8.5 23.10 1.00 9.01 105.6 1.91
1.5m 16.0 8.4 23.20 1.00 8.67 101.9 1.91
9 Dec 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 22.0 8.1 21.90 1.20 9.87 114.3 2.25
1.5m 22.0 8.1 21.90 1.20 10.12 113.3 2.36
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