Skip to content
 
EstuaryWatch Data Portal
Volunteer Login
  1. Find My WaterWay
  2. Estuaries
  3. Aire River Estuary
  4. Ai1 Bridge over Aire River Estuary
  5. Observations

Ai1 Bridge over Aire River Estuary

Active Physico-Chemical 24-02-2024 - 06-09-2025

Aire River Estuary

19 results found (Displaying 1 - 19)
Date Status Details
6 Sep 2025 Pending Notes:

ph meter may need testing, very slow to calibrate and slow to respond to test

very highfall and subsequent runoff in days prior, observed by much standing water in the flood plain. 

may need to check the ec on the ysi meter before next use.
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 8.4 10.50 10.65 95.5 0.50
2.5m 24.0 8.0 9.60 10.51 92.2 0.50
9 Aug 2025 Approved
aip2_1
aip2_1
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 10.50 10.99 99.0 1.23
3.0m 9.0 8.0 13.40 5.46 63.0 46.60
15 Jun 2025 Approved Notes:

River very low due to open mouth, old bridge pylons visible as are tree logs washed down in last years flood. 
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 7.1 9.60 10.70 95.8 9.52
2.5m 12.0 7.8 14.00 7.60 89.0 49.80
11 May 2025 Approved
aip2_1
aip2_1
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.9 13.00 10.14 97.5 2.81
3.0m 9.0 8.0 15.50 6.95 82.0 47.40
13 Apr 2025 Approved Notes:

pool at surface, fast current at 3m depth

no photos taken
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 8.0 19.10 9.21 100.9 5.91
3.0m 11.0 7.2 17.70 10.0 20.00
9 Mar 2025 Approved Notes:

2.90 reading potentially sitting in muddy bottom
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 8.5 23.50 8.60 101.9 5.03
2.9m 24.0 7.5 19.10 0.56 87.9 46.33
9 Feb 2025 Approved Notes:

River level very high (1.7m). Quite a lot of storm damage observed on the travel down from Colac. Approx 50% of camping sites flooded.
aip2_1
aip2_1

aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 20.50 7.90 91.0 6.02
3.5m 9.0 7.3 21.90 0.57 5.3 27.32
12 Jan 2025 Approved


Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.0 23.70 7.10 88.0 4.70
3.5m 10.0 6.8 21.30 2.13 28.0 39.90
8 Dec 2024 Approved Notes:

Gellibrand caravan park noted high rainfall on Friday and Saturday6/7th December.

Water is very tannin stained.
aip2_1
aip2_1
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 30.0 7.0 18.40 7.91 86.9 9.09
2.5m 30.0 7.6 17.10 7.24 91.9 50.88
10 Nov 2024 Approved



Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 26.0 6.3 18.50 9.75 106.0 4.06
3.4m 26.0 7.8 16.70 3.80 46.5 43.06
5 Oct 2024 Approved Notes:

large tree washed downstream and now exposed since last observations

river level 0.6m on guage. note automatic guaging station not operatring since control unit flooded in September
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.8 13.70 9.51 94.0 6.69
2.0m 9.0 8.2 14.40 7.82 94.2 5.19
7 Sep 2024 Approved
Aire_River_Bridge.pdf


Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.3 12.50 9.18 92.3 10.83
4.0m 9.0 7.6 12.60 6.06 69.4 45.36
3 Aug 2024 Approved
Aire_River_Bridge_Aug_3_2024.pdf


Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 7.2 19.20 10.64 96.9 13.60
2.0m 24.0 7.4 12.30 9.51 107.6 47.04
6 Jul 2024 Approved



Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 5.1 11.50 11.75 112.6 12.22
2.5m 9.0 7.9 13.60 7.22 84.9 49.14
27 May 2024 Approved Notes:

Very clear, turbidity tube was very clear at 9,
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.6 11.80 10.86 100.6 1.98
2.5m 9.0 7.7 15.90 4.96 60.6 4.79
27 Apr 2024 Approved
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
aip2_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.5 7.2 13.70 10.07 98.0 2.48
3.0m 9.5 7.5 16.20 4.15 51.5 49.39
6 Apr 2024 Approved Notes:

machine settings to Us/cm, so factored by 1000.



Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.8 17.00 9.08 95.6 4.96
3.0m 9.0 7.1 19.20 2.86 38.1 48.25
24 Mar 2024 Approved Notes:

This is a new machine supplied, forgot to include kcl solution so unable to calibrate. 


Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 6.9 17.70
2.0m 15.0 7.0 17.30
24 Feb 2024 Approved


Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.5 20.50 8.18 92.4 4.65
3.2m 9.0 7.1 20.90 4.47 58.5 40.88
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