Site Visit #2339727 05-10-2025 | ME_YMR112: Merri Creek, u/s of St Georges Rd Bridge, North Fitzroy

WaterWatch Data Portal

ME_YMR112 Yarra River Catchment

Sunday 5th October 2025 14:00pm Approved

Notes

Physical Chemical Tests

Ammonium

0mg/L NH4+

Dissolved Oxygen % Saturation

93.16%

Dissolved Oxygen mg/L

9mg/L

Electrical Conductivity

810µS/cm

pH

8.5pH Units

Reactive Phosphate (mg/L)

0.03mg/L P

Temperature - AIR

25.5° C

Temperature - WATER

16.9° C

Turbidity - NTU

9NTU

Water Conditions

Weather

Overcast

Last rainfall

More than a week ago

Flow estimate

MEDIUM: flow is normal/typical average flow

Water Appearance

Clear

Stream depth

1m - 2m

Stream width

> 5m

Hazards

Litter/Pollutants

Water Bugs Agreed Level Taxonomy Method

Image	Species	Score	Quantity
	a. Family Hydropsychidae (net spinning caddis)	6	1
	a. Family Psephenidae, Genus Sclerocyphon (water pennies)	6	4
	c. Family Atyidae (glass shrimp)	3	2
	d. Family Hymenosomatidae (five cent crab, false spider crab)	3	2
	e. Family Hydrobiidae - Potamopyrgus antipodarum (species - snail)	3	100
	g. Family Chironomidae (chironomids - True Fly larvae)	4	3
	m. Family Corixidae , Genus Micronecta (little brindle boatman)	3	1
	t. Family Leptoceridae, Genus Notalina (Headbanger caddis)	6	5
ALT Signal Score		4.25
Weighted ALT Signal Score		4.13

Diary photos

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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