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G4 Bridge at Rivernook

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

Gellibrand River Estuary

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171 results found (Displaying 76 - 100)
ID Date Status Details
#10940 11 Mar 2017 Approved Notes:

AHD G2 1.12

Max depth 5.61 m but observations only taken to 3.50 where D.O. starts to reduce to 0.01  mg/l
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.90 0.00 4.05 43.5 0.00
3.5m 18.90 0.00 0.01 0.2 43.27
#10929 6 Mar 2017 Approved Notes:

Flats D S G4 flooded. Rivernook flooded but no water past drain US

Only small pools of water on side of OOR near flood markers. (D.O. in wetland area recently excavated for culverts -site 1. S/S 0.60 mg/l   site 2.   N/S  0.81 mg/l
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.4 19.10 0.00 4.16 45.0 0.22
5.8m 9.0 17.90 28.60 0.00 0.0 44.26
#10815 18 Feb 2017 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.4 17.30 0.70 6.21 64.9 1.40
5.2m 9.0 18.40 29.10 3.21 43.7 44.89
#10778 3 Feb 2017 Approved Notes:

West wind about 2-3 creating ripples upstream to G4 site
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 18.40 1.10 6.44 68.9 2.17
5.0m 9.0 18.00 31.00 0.03 0.4 47.54
#10748 20 Jan 2017 Approved Notes:

Strong S.W. wind

Probe noticeably drifting @ different levels
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 6.8 18.20 0.70 6.20 67.7 1.45
4.9m 13.0 18.20 32.00 2.93 37.4 48.90
#10645 17 Dec 2016 Approved Notes:

Site affected by West wind coming upstream - gusts up to 8

Fresh water inflow impossible to access because of wind but probe not drifting at lower levels
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 6.7 16.50 0.30 7.70 79.2 0.70
5.0m 15.0 16.60 27.30 4.45 53.7 42.43
#10575 25 Nov 2016 Approved Notes:

Strong cold West wind coming up stream to G4

Fish jumping

'Slick' on water surface
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 6.5 14.90 0.10 7.75 76.3 0.24
4.9m 20.0 14.90 0.10 7.59 75.4 0.24
#10521 27 Aug 2016 Approved Notes:

Water about 2m from concrete, fast through dip in causeway, eddies in channel flow

GOR badly eroded from runoff
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 22.0 6.6 9.40 0.10 7.20 62.8 0.28
6.0m 22.0 9.50 0.10 7.13 62.5 0.28
#10369 18 Jun 2016 Approved Notes:
  • Flats water logged & water visible in drains. No water across dip in causeway
  • Flow medium with numerous eddies & swirls, being broken up by dense Phragmities along channel
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.7 8.90 0.20 8.97 77.4 0.38
5.3m 9.0 8.90 0.20 8.90 76.8 0.38
#10331 21 May 2016 Approved Notes:
  • Flood levels greatly reduced, water draining of flats
  • Very large no. waterbirds
  • No wind
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 12.10 0.20 7.41 69.0 0.36
5.0m 9.0 12.10 0.20 6.98 64.5 0.36
#10322 14 May 2016 Approved Notes:
  • Maximum depth recorded not accurate
  • River running in strong eddies around bridge also draining back into channel
  • Large no. small fish at side of channel against vegetation- some being swept downstream by faster flow
  • Pieces of dead vegetation in current
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.40 0.20 7.23 71.4 0.47
3.0m 14.40 0.20 7.35 72.0 0.46
#10247 16 Apr 2016 Approved Notes:
  • Frogs calling
  • Large black cat on causeway
  • Water on low land
  • Water across causeway
  • Persicaria in flower
  • Phragmities in flower with seeds & green shoots
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 15.60 1.00 8.11 82.0 1.98
5.6m 10.0 17.50 32.20 0.06 0.8 49.12
#10233 5 Apr 2016 Approved Notes:
  • Algae on submerged veg.Strong wind slightly modified by dense streamside vegetation
  • Water looks dark & dirty but turbidity <9, Phragmities seeds & small dried veg I water
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 15.80 1.00 6.27 63.3 1.90
5.5m 9.0 17.70 32.20 3.97 50.8 49.11
#10224 19 Mar 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 6.5 18.00 2.20 5.69 60.8 4.15
4.8m 10.0 17.80 29.20 3.66 45.8 45.04
#10191 9 Mar 2016 Approved Notes:
  • Flats flooded around G4 and downstream. No water on north flat u/s
  • Algae on submerged stream side veg. & surface of drain
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 5.9 20.80 0.20 4.25 47.6 0.46
5.8m 9.0 17.20 29.60 0.02 0.2 45.52
#10186 2 Mar 2016 Approved Notes:
  • Large amount of algae on streamside vegetation
  • Algae on surface of water along drain beside causeway
  • All flats flooded
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 5.9 20.60 0.30 5.07 56.3 0.70
5.7m 9.0 17.40 29.60 0.01 0.2 45.53
#10168 26 Feb 2016 Approved Notes:
  • Strong w. wind, small waves u/s to G4
  • All flats around G4 flooded except for further u/s on north side of channel
  • Freshwater inflow difficult to tell because of wind/waves
  • Algae on submerged streamside veg. & on surface along drains
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.1 19.30 0.40 4.88 53.0 0.81
5.6m 9.0 17.30 29.70 0.02 0.2 45.74
#10162 20 Feb 2016 Pending Notes:
  • water on Rivernook flats & downstream G4
  • frogs calling
  • Algae on submerged streamside vegetation
  • Phragmities seed heads emerging
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.1 19.00 0.30 4.32 48.7 0.68
5.5m 9.0 17.60 29.60 0.02 0.3 45.64
#10147 12 Feb 2016 Approved Notes:
  • Flow very slow with floating debris
  • North flats downstream flooded with white cream & pink/orange algae forming in shallow water
  • Algae forming on submerged veg. 'skeins' forming on water surface in sheltered areas
  • Rivernook flats have water cover in shallow areas & drains. Water across dip in causeway
  • Some water on north flats upstream (mainly runoff from 11ml rain 11/02/16 & discharge from springs)
  • 30 White headed herons flying upstream
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 22.60 0.50 6.59 76.3 0.94
5.7m 17.60 29.70 0.02 0.3 45.71
#10135 5 Feb 2016 Approved Notes:
  • AHD G2 1.09
  • Algae on submerged vegetation
  • Floodwater across dip in causeway
  • Water covering north flats downstream, red & cream algae in shallow area near downstream end
  • Iridescent 'skeins' on surface of water in sheltered areas around bridge
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 6.3 20.90 0.50 5.59 62.5 1.07
5.4m 11.0 18.10 29.60 0.02 0.2 45.65
#10096 16 Jan 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.5 19.10 1.40 5.40 64.5 2.67
4.9m 9.0 18.90 29.60 2.69 36.0 45.53
#10165 10 Jan 2016 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.60 1.20 4.94 55.4 2.29
4.9m 17.60 30.40 0.92 0.3 46.71
#10042 1 Jan 2016 Approved Notes:

- Water very dark with floating veg.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.7 21.00 2.10 5.44 62.2 4.04
4.8m 9.0 17.60 29.80 2.99 37.6 45.80
#10035 27 Dec 2015 Approved Notes:
  • Mouth opened 26/12/15
  • Water circling around bridge
  • Large number of small fish along stream side vegetation & bridge
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.60 0.60 5.67 61.9 1.27
5.3m 15.80 27.20 0.02 0.3 42.27
#10029 24 Dec 2015 Approved Notes:
    G6 1.35
  • Many large groups of small fish around streamside veg. and bridge
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 6.4 22.30 0.40 6.73 78.4 0.75
5.7m 13.0 15.70 27.30 0.02 0.2 42.43
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