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 - 24-03-2023
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 22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Observation #14630 #14692 #14907 #14956 #15024 #15085 #15139 #15180 #15254 #15284 #15370

Observation summaries

Turbidity NTU

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top 9.0 9.0 27.0 60.0 21.0 40.0 21.0 24.0 10.0 12.0 9.0
Bottom 10.0 11.0 27.0 19.0 35.0 21.0 30.0 12.0 17.0 24.0

pH

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top 7.4 6.4 6.5 6.0 6.3 6.9 6.9 7.2 6.9 6.9
Bottom 7.3 6.6 6.7 6.6 6.9 7.0 7.0 7.1 7.0

Ammonia mg/L

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top
Bottom

Enterococci orgs/100mL

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top
Bottom

Temperature ° C

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top 14.00 11.90 7.70 11.10 11.40 14.80 14.10 14.20 17.50 17.70 16.30
Bottom 14.10 11.80 7.60 10.90 10.80 14.50 14.00 14.00 17.50 17.40 16.30

Salinity ppt

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top 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

D.O. mg/L

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top 8.52 8.97 10.76 8.54 9.99 7.39 9.06 9.17 7.51 7.63 8.09
Bottom 8.28 8.88 10.65 8.47 10.13 7.38 9.03 9.14 7.43 7.61 8.00

D.O. % Sat

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top 83.00 83.30 90.40 82.30 97.30 77.70 93.80 95.10 83.90 85.50 87.50
Bottom 80.50 82.20 89.10 81.10 97.00 76.90 93.00 94.20 82.80 84.60 86.60

Conductivity mS/cm

22-04-2022 19-05-2022 22-07-2022 19-08-2022 16-09-2022 21-10-2022 19-11-2022 16-12-2022 21-01-2023 10-02-2023 24-03-2023
Top 0.26 0.33 0.28 0.23 0.29 0.23 0.26 0.28 0.27 0.29 0.27
Bottom 0.27 0.33 0.28 0.23 0.29 0.23 0.26 0.28 0.27 0.29 0.27
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