Site Visit #2340024 13-12-2025 | ME_WJR130: Jawbone Lake 1 (Just below treatment wetland)

ME_WJR130 Werribee River Catchment

Saturday 13th December 2025 10:30am Approved

Notes

Physical Chemical Tests

Ammonium

0mg/L NH4+

Dissolved Oxygen mg/L

6mg/L

pH

7pH Units

Temperature - AIR

25° C

Temperature - WATER

22.5° C

Turbidity - NTU

10NTU

Water Conditions

Weather

Overcast

Last rainfall

During the last week 2.80

Flow estimate

Water Appearance

Stained green

Stream depth

51cm - 99cm

Stream width

Hazards

Litter/Pollutants

cans

Water Bugs Agreed Level Taxonomy Method

Image	Species	Score	Quantity
	c. Family Atyidae (glass shrimp)	3	N/A
	c. Phylum Annelida, class Hirudinea, (leeches)	1	N/A
	e. Family Chironomidae, several genera (blood worms)	4	N/A
	e. Family Lestidae and Family Coenagrionidae (Damselfly nymph)	1	N/A
	e. Phylum Turbellaria ( flatworms)	1	N/A
	f. Family Baetidae (baetids -Mayfly nymph)	5	N/A
	f. Order Amphipoda (scuds, sideswimmers)	3	N/A
	g. Order Acarina, (water mites)	5	N/A
	h. Family Telephlebiidae (teleflebs - Dragonfly nymphs)	9	N/A
	j. Family Dytiscidae, (nosey tigers)	3	N/A
	l. Family Culicidae (mosquito larvae, wrigglers)	1	N/A
	m. Family Corixidae , Genus Micronecta (little brindle boatman)	3	N/A
	q. Family Leptoceridae, Genus Triplectides (stick caddis)	3	N/A
ALT Signal Score
Weighted ALT Signal Score

Physical Chemical Trends

Test 1

Test 2

Mininum standard

Start date First data:

End date 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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Jawbone Lake 1 (Just below treatment wetland)