Site details

Overview

Estuary Gellibrand River Estuary
CMA Corangamite CMA
Type Physico-Chemical
Site code G5
Site name Coxon's Bridge
Nearest road and town Old Ocean Road, Princetown
Description Bridge at Coxon's
Site access Access via Old Ocean Road. Second bridge along.
Land use
  • Other
  • Rural Grazing
Land use description Grazing land.
Status Active
Observation history 21-04-2007 - 22-12-2023
G5
Phys/Chem Monitoring Site Five

Map

Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
Turbidity tubes do not measure below 9 NTU; Chart values of 9 should be interpreted as < 9 NTU

Observations

Date 24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Observation #15370 #15488 #15532 #15578 #15670 #15721 #15747 #15817 #15866 #15951

Observation summaries

Turbidity NTU

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top 9.0 15.0 10.0 53.0 23.0 27.0 24.0 24.0 10.0 9.0
Bottom 24.0 24.0 27.0 60.0 23.0 35.0 24.0 50.0 17.0 9.0

pH

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top 6.9 6.8 7.3 7.0 6.9 6.8 6.7 7.1 6.3 6.5
Bottom 7.0 6.8 7.2 6.9 6.9 6.9 6.9 7.1 7.0 6.7

Ammonia mg/L

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top
Bottom

Enterococci orgs/100mL

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top
Bottom

Temperature ° C

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top 16.30 14.20 10.60 11.10 9.00 11.40 12.50 13.80 15.40 17.40
Bottom 16.30 14.00 10.30 10.90 8.90 11.10 12.10 13.50 15.00 17.30

Salinity ppt

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20
Bottom 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20

D.O. mg/L

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top 8.09 9.10 10.43 9.84 10.70 10.12 9.99 9.41 8.67 8.26
Bottom 8.00 9.05 10.47 9.76 10.62 10.14 10.04 9.42 8.71 8.22

D.O. % Sat

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top 87.50 94.00 99.50 94.70 97.50 98.40 99.90 96.80 92.50 91.90
Bottom 86.60 93.40 98.80 93.50 96.60 97.60 93.90 96.40 91.80 91.10

Conductivity mS/cm

24-03-2023 21-04-2023 19-05-2023 16-06-2023 21-07-2023 25-08-2023 15-09-2023 20-10-2023 17-11-2023 22-12-2023
Top 0.27 0.30 0.30 0.31 0.29 0.29 0.30 0.28 0.29 0.28
Bottom 0.27 0.30 0.30 0.32 0.29 0.29 0.30 0.28 0.29 0.28
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