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Catchments
Yarra River Catchment
ME_YMR297
Site visits
20-10-2025
Merri Creek at John Laffan Reserve, 50 metres before confluence with Kalkallo Creek, Donnybrook
Melbourne
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ME_YMR297 Yarra River Catchment
Monday 20th October 2025 12:30pm
Approved
Notes
Physical Chemical Tests
Ammonium
0
mg/L NH4+
Dissolved Oxygen % Saturation
52.6
%
Electrical Conductivity
602
µS/cm
pH
7.5
pH Units
Reactive Phosphate (mg/L)
0.07
mg/L P
Temperature - AIR
17.5
° C
Temperature - WATER
16.6
° C
Turbidity - NTU
9
NTU
Water Conditions
Weather
Last rainfall
Flow estimate
Water Appearance
Stream depth
Stream width
Hazards
Steep banks, deep mud, thistles
Litter/Pollutants
Diary photos
No diary entries recorded for this visit
Physical Chemical Trends
Loading chart
Test 1
Ammonium
Dissolved Oxygen mg/L
Temperature - WATER
Temperature - AIR
pH
Electrical Conductivity
Reactive Phosphate (mg/L)
Dissolved Oxygen % Saturation
Turbidity - NTU
Test 2
Ammonium
Dissolved Oxygen mg/L
Temperature - WATER
Temperature - AIR
pH
Electrical Conductivity
Reactive Phosphate (mg/L)
Dissolved Oxygen % Saturation
Turbidity - NTU
Mininum standard
Any level
Level 1
Level 2
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Start date
First data:
End date
Last data:
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17-01-2025
20-10-2025
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