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G5 Coxon's Bridge

Active Physico-Chemical 21-04-2007 - 15-03-2024

Gellibrand River Estuary

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229 results found (Displaying 51 - 75)
ID Date Status Details
#12732 28 Feb 2019 Approved Notes:

AHD G6 1.40 @ 07:30      AHD G2 1.45 @ 10:30

Flow estimate difficult because of surface ripples

Water on all flats but difficult to see because of increase height of aquatic water vegetation
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 19.20 0.10 4.98 54.0 0.26
2.1m 9.0 6.6 19.20 0.10 4.73 50.9 0.26
#12702 15 Feb 2019 Pending Notes:

IEC Chlorophyll a collected

Rainfall 70mm in last week
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.00
2.0m 20.00
#13015 15 Feb 2019 Approved Notes:

IEC Site. Mouth Closed.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.6 6.8 17.00 0.10 6.41 65.9 0.29
1.9m 7.6 6.7 16.80 0.10 6.17 63.7 0.29
#13014 18 Jan 2019 Approved Notes:

IEC Site. Mouth Open

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.1 6.7 21.20 0.10 6.00 68.5 0.26
1.3m 11.1 6.6 21.20 0.10 5.77 65.0 0.26
#13013 21 Dec 2018 Approved Notes:

IEC Site. Mouth Open.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.9 6.8 18.10 0.10 7.18 76.1 0.28
1.4m 13.9 6.8 18.10 0.10 7.16 75.8 0.28
#13012 23 Nov 2018 Approved Notes:

IEC Site. Mouth Open

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.5 7.4 15.00 0.20 8.40 83.2 0.28
1.7m 12.5 7.2 15.60 0.20 8.43 83.8 0.28
#12536 16 Nov 2018 Approved Notes:

AHD G6 estimated to be 0.88  @ 08:40 - Board covered with silt

Drains & culverts have been cleaned out along OCR.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 6.8 15.10 0.10 7.96 79.1 0.28
1.4m 15.0 6.6 15.10 0.10 7.92 78.8 0.28
#12450 19 Oct 2018 Approved Notes:

AHD G6 2.55 @  08:45 - rising to 2.62 by 13:40

Water level rising quickly from rainfall in catchment & local heavy falls causing large amount of run off - very fast flow  ( 41 ml rain recorded @ G5 from 15-10-18)

Flats around G5 now have large areas of visible water cover
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 60.0 6.6 15.10 0.10 7.48 74.4 0.26
2.9m 60.0 6.6 15.10 0.10 7.39 73.3 0.27
#12402 21 Sep 2018 Approved Notes:

AHD G6 1.95 @ 08:15

Windmill on bank blown over during previous gale force winds

Cape pond weed blooming prolifically in extensive remaining flood water around G5 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 6.8 10.40 0.10 9.63 86.9 0.31
2.4m 13.0 6.6 10.30 0.10 9.57 85.4 0.31
#12069 18 May 2018 Approved Notes:

AHD G6 1.19 @  08:00

Water visible mainly in all low areas from G5 - G6. Flats downstream G5 have partially drained but water cover is visible in low areas close to G5
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.3 11.80 0.10 8.59 79.2 2.95
1.7m 9.0 6.3 11.70 0.10 8.37 77.0 2.95
#11967 13 Apr 2018 Approved Notes:

AHD G6   1.48 @  08:05

Turbidity & pH even throughout test

Water level rising- flats have large areas of water cover
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 4.1 6.7 15.70 0.20 7.29 73.3 0.35
2.4m 4.1 6.7 15.70 0.20 7.28 73.2 0.35
#11949 10 Apr 2018 Approved Notes:

AHD G6  1.45

Flood water on flats -mainly downstream G5
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.80 0.10 6.18 63.0 0.29
2.2m 15.40 0.20 5.84 58.3 0.31
#11895 16 Mar 2018 Approved Notes:

AHD G6 0.65

Very slow flow D/S
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 6.1 7.2 16.90 0.10 6.37 65.8 0.28
1.4m 6.1 7.1 16.90 0.10 6.29 64.9 0.28
#11863 6 Mar 2018 Approved Notes:

 

 

 

 

AHD G6 1.43

 

 

 

 

Air temp. 17C.-18C        2ml rain over night  

 

 

 

 

Gate on G5 bridge locked

 

 

 

 

Difficult to estimate flow because of waves

 

 

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 17.30 0.10 5.46 57.9 0.25
2.2m 9.0 6.8 17.20 0.10 5.17 54.0 0.25
#11857 16 Feb 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 4.0 6.8 17.90 0.10 6.30 66.5 0.28
2.0m 4.0 6.7 17.90 0.10 6.30 66.4 0.28
#11805 29 Jan 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.2 6.8 24.70 0.10 5.98 71.9 0.29
1.7m 19.2 6.7 23.20 0.10 4.53 53.0 0.30
#11729 21 Jan 2018 Approved Notes:

Air temp 19C. humidity high with damp fog

AHD G6     0.66 @ 07:55    

Site affected by E wind & waves going downstream  (Flow estimate difficult)

Algae increase on streamside veg.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.8 20.60 0.10 5.57 65.2 2.53
1.3m 9.0 20.60 0.10 5.34 59.4 2.53
#11661 15 Dec 2017 Approved Notes:

AHD @ G6 is about 0.77 (08:12)    (estimate only as unfortunately the board has not yet been cleaned)

Water level low, large areas of Water ribbons exposed on both sides of the river channel

Fish activity in water noted
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 7.0 18.40 0.10 7.33 77.8 0.26
1.4m 12.0 18.40 0.10 7.05 75.2 0.26
#11597 17 Nov 2017 Approved Notes:

AHD @ G6 estimate as the board is covered with silt  0.90

pH not taken

Water level low. Water lying in drains & only in very low areas from G6-G5. Ducks,WH @ WN herons in large no's feeding there. Cape pond weed reduced to small water covered areas
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 18.20 0.10 6.67 70.5 0.28
1.4m 12.0 18.10 0.10 6.67 70.6 0.28
#11522 20 Oct 2017 Approved Notes:

AHD G6 1.60 @08:00
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 6.7 15.20 0.10 7.57 75.3 0.27
2.6m 20.0 15.20 0.10 7.44 74.3 0.27
#11355 21 Jul 2017 Approved Notes:

Air temp 0. degrees

Very fast flow

All flats flooded at G5 & upstream  apart from very high land & levee bank. Many swans& water birds. Also scarlet Robin near bridge
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 95.0 9.20 0.10 8.08 70.2 0.31
3.4m 95.0 9.20 0.10 7.85 68.4 0.31
#11263 16 Jun 2017 Approved Notes:

AHD G6   1.18
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 5.9 10.50 0.20 8.63 77.3 0.35
1.8m 9.0 10.50 0.20 8.52 76.4 0.35
#11247 1 Jun 2017 Approved Notes:

Very cold west wind 4

Water on all flats around G5 & upstream
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 6.4 10.10 0.20 8.88 79.2 0.39
2.5m 14.0 10.00 0.20 8.84 78.4 0.39
#11186 20 May 2017 Approved Notes:

AHD 1.25 @ 08:31  G6
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 5.4 11.30 0.10 8.69 79.5 0.29
2.0m 9.0 11.30 0.10 8.30 75.8 0.29
#11104 22 Apr 2017 Approved Notes:

AHD G6 0.86 @  08:13   West wind 4

Significant drop in water level. Shiny slick around recently submerged veg.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.1 14.20 0.10 7.46 73.0 0.28
1.5m 9.0 14.20 0.10 6.97 69.7 0.79
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