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 - 18-05-2018
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 21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Observation #11355 #11522 #11597 #11661 #11729 #11805 #11857 #11863 #11895 #11949 #11967 #12069

Observation summaries

Turbidity NTU

21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Top 95.0 20.0 12.0 12.0 9.0 19.2 4.0 9.0 6.1 4.1 9.0
Bottom 6.8 17.6 4.6 9.0 6.0 4.5 27.0

pH

21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Top 6.7 7.0 6.8 6.8 6.8 6.6 7.2 6.7 6.3
Bottom 6.7 6.7 6.8 7.1 6.7 6.3

Temperature ° C

21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Top 9.20 15.20 18.20 18.40 20.60 24.70 17.90 17.30 16.90 15.80 15.70 11.80
Bottom 9.20 15.20 18.10 18.40 20.60 23.20 17.90 17.20 16.90 15.40 15.70 11.70

Salinity ppt

21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Top 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.20 0.10
Bottom 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.20 0.20 0.10

D.O. mg/L

21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Top 8.08 7.57 6.67 7.33 5.57 5.98 6.30 5.46 6.37 6.18 7.29 8.59
Bottom 7.85 7.44 6.67 7.05 5.34 4.53 6.30 5.17 6.29 5.84 7.28 8.37

D.O. % Sat

21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Top 70.20 75.30 70.50 77.80 65.20 71.90 66.50 57.90 65.80 63.00 73.30 79.20
Bottom 68.40 74.30 70.60 75.20 59.40 53.00 66.40 54.00 64.90 58.30 73.20 77.00

Conductivity mS/cm

21-07-2017 20-10-2017 17-11-2017 15-12-2017 21-01-2018 29-01-2018 16-02-2018 06-03-2018 16-03-2018 10-04-2018 13-04-2018 18-05-2018
Top 0.31 0.27 0.28 0.26 0.25 0.29 0.28 0.25 0.28 0.29 0.35 0.29
Bottom 0.31 0.27 0.28 0.26 0.25 0.30 0.28 0.25 0.28 0.31 0.35 0.29
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