Site visit details

Overview

Catchment Dandenong
Site Tirhatuan Wetlands, off Dandenong Creek, Rowville ME_DTW100
Date and Time Sunday 25th September 2022 10:00am
Approved Approved

Notes

Physical Chemical Tests

N mg/L NH4+ D.O. % D.O mg/L EC µS/cm pH pH Units rP mg/L P Air ° C Water ° C Turb FTU
Sample 0 110.82 11 250 9.4 17.1 15.7 24
Weather sunny
Last rainfall During the last week
Flow estimate PERMANENT: wetlands and lakes
Water Appearance Clear
Stream depth
Stream width
Hazards
Litter/Pollutants

Present: Isabelle, Dorothea, Peta, Julie

pH was 8.2 with PR, retested with TB gave 9.4

DO took a long time to mix, gave 11mg/l, retest gave Overrange!

No chemicals for Phosphate

Wetland was overflowing quite fast

Creatures Waterwatch method

Image Species Score Quantity
Caddis-fly Larvae (Trichoptera) Caddis-fly Larvae (Trichoptera) 7 4
Flatworms (Turbellaria) 2 1
Freshwater Snails (Gastropoda) Freshwater Snails (Gastropoda) 3 1
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera) 4 3
Non Biting Midge Larvae - Bloodworms (Diptera) Non Biting Midge Larvae - Bloodworms (Diptera) 1 5
Segmented Worm (Oligochaeta) Segmented Worm (Oligochaeta) 1 15
Total bug score
Total abundance 0 - 35 35+
0 - 200 Poor Good
200+ Fair Very good
Total abundance: 29 Total score: 18 Overall rating: Poor

Diary photos

No diary entries recorded for this visit

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