Gellibrand River Estuary: Site G2 Old Coach Road Bridge Princetown

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G2 Old Coach Road Bridge Princetown

G1
G2
G3
L1
G4
G5
G6
G6GB

Active Physico-Chemical none

Road bridge over estuary on Old Coach Road

Land Use

Native Bushland
Other
Recreational

Road

Physical Chemical Tests

pH Top

Explain for me 20-04-2007 to 19-06-2026

Median
6.9pH units Latest
6.5pH units

pH Bottom

Explain for me 20-04-2007 to 19-06-2026

Median
7.0pH units Latest
5.8pH units

Turbidity Top

Explain for me 20-04-2007 to 19-06-2026

Median
15NTU Latest
40NTU

Turbidity Bottom

Explain for me 20-04-2007 to 19-06-2026

Median
20NTU Latest
11NTU

Water Temperature Top

Explain for me 20-04-2007 to 19-06-2026

Median
15.8° C Latest
12.2° C

Water Temperature Bottom

Explain for me 20-04-2007 to 19-06-2026

Median
16.2° C Latest
12.0° C

Salinity Top

Explain for me 20-04-2007 to 19-06-2026

Median
1.800ppt Latest
0.300ppt

Salinity Bottom

Explain for me 20-04-2007 to 19-06-2026

Median
31.200ppt Latest
0.300ppt

Dissolved Oxygen Top

Explain for me 20-04-2007 to 19-06-2026

Median
7.40mg/L Latest
7.94mg/L

Dissolved Oxygen Bottom

Explain for me 20-04-2007 to 19-06-2026

Median
4.38mg/L Latest
7.86mg/L

Dissolved Oxygen Saturation Top

Explain for me 20-04-2007 to 19-06-2026

Median
75.75% Latest
75.20%

Dissolved Oxygen Saturation Bottom

Explain for me 20-04-2007 to 19-06-2026

Median
51.30% Latest
73.70%

Conductivity Top

Explain for me 20-04-2007 to 19-06-2026

Median
3.209mS/cm Latest
0.437mS/cm

Conductivity Bottom

Explain for me 20-04-2007 to 19-06-2026

Median
47.145mS/cm Latest
0.450mS/cm

Water quality indicators for riverine and lagoon estuaries

(2021 to 2026) 48 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	6.8 Moderate 45 observations	7.4 Good 45 observations	15 Moderate 48 observations	78.35 Moderate 47 observations	6.7 Moderate 42 observations	7.4 Good 42 observations	36.5 Very Poor 45 observations	33.65 Poor 47 observations
2026	6.5 Moderate 7 observations	7.05 Good 7 observations	11.5 Moderate 7 observations	56.5 Very Poor 7 observations	N/A 5 observations	N/A 5 observations	N/A 5 observations	1.8 Very Poor 7 observations
2025	7.1 Good 12 observations	7.65 Good 12 observations	11.5 Moderate 12 observations	78.35 Moderate 11 observations	6.75 Moderate 11 observations	7.35 Good 11 observations	20.5 Poor 11 observations	1.25 Very Poor 11 observations
2024	N/A 3 observations	N/A 3 observations	N/A 3 observations	N/A 3 observations	N/A 3 observations	N/A 3 observations	N/A 3 observations	N/A 3 observations
2023	6.75 Moderate 7 observations	7.2 Good 7 observations	16.5 Moderate 7 observations	86.9 Good 7 observations	7 Good 7 observations	7.35 Good 7 observations	79 Very Poor 7 observations	30.5 Poor 7 observations
2022	6.85 Moderate 9 observations	7.25 Good 9 observations	25.5 Poor 10 observations	71.6 Poor 10 observations	6.7 Moderate 9 observations	7.3 Good 9 observations	40 Very Poor 10 observations	81.7 Good 10 observations
2021	6.45 Moderate 7 observations	6.95 Good 7 observations	14.75 Moderate 9 observations	77.7 Moderate 9 observations	6.5 Moderate 7 observations	7.6 Good 7 observations	24 Poor 9 observations	50.05 Poor 9 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.

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