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  6. 23-09-2026

Williamsons Creek

Corangamite

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CO_WIL010 Barwon River Catchment

Wednesday 23rd September 2026 8:30am Approved
Notes

Physical Chemical Tests

Dissolved Oxygen % Saturation
69.3%
Dissolved Oxygen mg/L
7.6mg/L
Electrical Conductivity
1693µS/cm
pH
7.8pH Units
Reactive Phosphate (mg/L)
0.1mg/L P
Temperature - AIR
11° C
Temperature - WATER
11° C
Turbidity - NTU
9NTU

Water Conditions

Weather
Sunny
Last rainfall
During the last week 3.00
Flow estimate
MEDIUM: flow is normal/typical average flow
Water Appearance
Clear
Stream depth
2m
Stream width
2m - 5m
Hazards
 
Litter/Pollutants
 

Water Bugs WaterWatch method

Image Species Score Quantity
Image
Mayfly nymph (Ephemeroptera) 7 5
Image
Damselfly Nymph (Odonata) 6 20
Image
Water mites (Acarina) 5 50
Image
Freshwater Snails (Gastropoda) 3 10
Image
Side Swimmer/Scud (Amphipoda) 4 200
Image
Fly Larvae -True, Black, Crane, March, Horse, and Soldier Fly Larvae (Diptera) 2 100
Image
Segmented Worm (Oligochaeta) 1 40
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 425 Total score: 28 Overall rating: Fair

Diary photos

No diary entries recorded for this visit

Physical Chemical Trends

Last data:
We acknowledge and respect Victorian Traditional Owners as the original custodians of Victoria’s land and waters, their unique ability to care for Country and deep spiritual connection to it.
We honour Elders past and present whose knowledge and wisdom has ensured the continuation of culture and traditional practices.
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