Site details

Overview

Estuary Barwon River Estuary
CMA Corangamite CMA
Type Physico-Chemical
Site code B4
Site name The Thunderbolt
Nearest road and town Peers Crescent, Ocean Grove
Description The thunderbolt is a deep section of water that links Lake Connewarre and the Barwon River Estuary.
Site access Via boat from the Ocean Grove boat ramp.
Land use
  • Native Bushland
  • Rural Horticultural
Land use description This site is surrounded by intact riparian vegetation that seperates the estuary from adjacent farm land.
Status Active
Observation history 09-11-2007 - 01-11-2018
Photo of Thunderbolt Phys/chem site
Phys/chem monitoring site

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 04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Observation #11705 #11859 #12027 #12032 #12123 #12481

Observation summaries

Turbidity NTU

04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Top 24.0 6.8 4.9 5.1 0.0 22.0
Bottom 9.0 4.8 4.7 0.0 10.0

pH

04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Top 8.0 8.1 8.1 7.7 7.7 8.1
Bottom 8.1 8.1 7.8 7.9 7.8

Temperature ° C

04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Top 21.00 19.00 19.30 17.30 12.30 20.10
Bottom 20.90 20.10 19.40 17.30 11.50 16.80

Salinity ppt

04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Top 33.70 30.70 33.40 35.40 33.20 23.30
Bottom 35.80 32.80 33.60 35.20 33.30 34.90

D.O. mg/L

04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Top 8.53 6.67 6.68 5.83 10.20 9.77
Bottom 8.22 5.60 6.93 5.67 9.94 8.22

D.O. % Sat

04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Top 97.10 86.30 88.50 75.10 94.00 108.20
Bottom 92.50 75.90 91.40 73.00 90.40 85.60

Conductivity mS/cm

04-01-2018 28-02-2018 14-03-2018 05-04-2018 06-06-2018 01-11-2018
Top 48.20 47.20 50.98 53.57 47.40 33.30
Bottom 51.20 50.30 51.16 53.40 47.60 49.80
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