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  6. 20-12-2025

Williamsons Creek

Corangamite

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CO_WIL010 Barwon River Catchment

Saturday 20th December 2025 12:30pm Approved
Notes

Physical Chemical Tests

Dissolved Oxygen % Saturation
73.13%
Dissolved Oxygen mg/L
6.8mg/L
Electrical Conductivity
3140µS/cm
pH
7.7pH Units
Reactive Phosphate (mg/L)
0.1mg/L P
Temperature - AIR
18.4° C
Temperature - WATER
18.4° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Cloudy
Last rainfall
More than a week ago 2.00
Flow estimate
LOW: Minimum flow in channel/continuous flow in some part of channel (in-stream habitats connected)
Water Appearance
Clear
Stream depth
2m
Stream width
2m - 5m
Hazards
 
Litter/Pollutants
 

Water Bugs WaterWatch method

Image Species Score Quantity
Image
Freshwater Shrimp/Prawn (Atyidae) 5 1
Image
Water mites (Acarina) 5 30
Image
Side Swimmer/Scud (Amphipoda) 4 500
Image
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 100
Image
Non Biting Midge Larvae - Bloodworms (Diptera) 1 20
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 651 Total score: 19 Overall rating: Fair

Diary photos

Physical Chemical Trends

Last data:
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