Merri River Estuary: Site M1 Stanley Street

Skip to content

EstuaryWatch Data Portal

Volunteer Login

M1 Stanley Street

Active Physico-Chemical Stanley Street

Monitoring has historically been conducted from the pedestrian crossing on the downstream side of the Stanley Street (Edwards Bridge), Warrnambool.

In February 2022, this site was temporarily moved 100m upstream onto the left bank of the Merri River, with sampling occurring from the new floating pontoon while the new bridge was under construction.

Sampling has since returned to the Edwards Bridge in 2024 once the new bridge was completed; undertaken on the downstream (southern) side pedestrian access.

Elevated side rails; take care with manual lifting equipment in and out of the river.
Busy footpath; facilitate public movement, try and avoid creating tripping hazards, be cautious of bikes, runners and pedestrians.

Land Use

Recreational
Urban Residential

Urban setting, surrounded by public open space.

Physical Chemical Tests

pH Top

Explain for me 27-10-2013 to 10-10-2026

Median
7.5pH units Latest
8.1pH units

pH Bottom

Explain for me 27-10-2013 to 10-10-2026

Median
7.5pH units Latest
7.9pH units

Turbidity Top

Explain for me 27-10-2013 to 10-10-2026

Median
9NTU Latest
21NTU

Turbidity Bottom

Explain for me 27-10-2013 to 10-10-2026

Median
9NTU Latest
9NTU

Water Temperature Top

Explain for me 27-10-2013 to 10-10-2026

Median
15.6° C Latest
10.9° C

Water Temperature Bottom

Explain for me 27-10-2013 to 10-10-2026

Median
15.9° C Latest
12.2° C

Salinity Top

Explain for me 27-10-2013 to 10-10-2026

Median
2.100ppt Latest
0.900ppt

Salinity Bottom

Explain for me 27-10-2013 to 10-10-2026

Median
29.000ppt Latest
17.200ppt

Dissolved Oxygen Top

Explain for me 27-10-2013 to 10-10-2026

Median
7.98mg/L Latest
7.26mg/L

Dissolved Oxygen Bottom

Explain for me 27-10-2013 to 10-10-2026

Median
5.51mg/L Latest
0.75mg/L

Dissolved Oxygen Saturation Top

Explain for me 27-10-2013 to 10-10-2026

Median
80.55% Latest
65.70%

Dissolved Oxygen Saturation Bottom

Explain for me 27-10-2013 to 10-10-2026

Median
60.50% Latest
7.00%

Conductivity Top

Explain for me 27-10-2013 to 10-10-2026

Median
3.910mS/cm Latest
1.837mS/cm

Conductivity Bottom

Explain for me 27-10-2013 to 10-10-2026

Median
44.420mS/cm Latest
29.870mS/cm

Water quality indicators for riverine and lagoon estuaries

(2021 to 2026) 65 observations Explain for me

Year	Surface water					Bottom water
	pH lower	pH upper	Turbidity	D.O.		pH lower	pH upper	Turbidity	D.O.
	pH	pH	NTU	% saturation		pH	pH	NTU	% saturation
	25th percentile	75th percentile	75th percentile	25th percentile		25th percentile	75th percentile	75th percentile	25th percentile
2021 to 2026	6.9 Moderate 64 observations	7.8 Good 64 observations	17 Moderate 65 observations	62.2 Poor 63 observations		6.95 Moderate 64 observations	7.7 Good 64 observations	16 Poor 65 observations	5.85 Very Poor 63 observations
2026	6.65 Moderate 8 observations	7.35 Good 8 observations	22 Poor 8 observations	66.3 Poor 8 observations		6.8 Moderate 8 observations	7.35 Good 8 observations	28.5 Very Poor 8 observations	4.55 Very Poor 8 observations
2025	6.75 Moderate 11 observations	7.25 Good 11 observations	25 Poor 11 observations	74 Poor 11 observations		6.65 Moderate 11 observations	7.05 Good 11 observations	20 Poor 11 observations	1.25 Very Poor 11 observations
2024	7.45 Good 12 observations	8 Good 12 observations	18 Moderate 12 observations	77.35 Moderate 12 observations		7.45 Good 12 observations	7.75 Good 12 observations	14.5 Moderate 12 observations	12.5 Very Poor 12 observations
2023	6.8 Moderate 11 observations	7.5 Good 11 observations	11 Moderate 12 observations	54.45 Very Poor 11 observations		6.8 Moderate 11 observations	7.45 Good 11 observations	17 Poor 12 observations	3.4 Very Poor 11 observations
2022	6.8 Moderate 10 observations	8 Good 10 observations	17.5 Moderate 10 observations	50.25 Very Poor 9 observations		6.75 Moderate 10 observations	7.7 Good 10 observations	12.5 Moderate 10 observations	35.08 Poor 9 observations
2021	7 Good 12 observations	7.85 Good 12 observations	9.5 Good 12 observations	51.35 Very Poor 12 observations		7.6 Good 12 observations	7.95 Good 12 observations	11.25 Moderate 12 observations	30.05 Poor 12 observations

View all observations

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.

Creative Commons CC BY

All content, files, data and images provided by the EstuaryWatch Data Portal subject to a Creative Commons Attribution License Data portal by CeRDI