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G2 Old Coach Road Bridge Princetown

Active Physico-Chemical 20-04-2007 - 21-07-2023

Gellibrand River Estuary

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628 results found (Displaying 76 - 100)
ID Date Status Details
#12016 3 May 2018 Approved Notes:

AHD 0.42

Flats down stream G4 have drained leaving white powdery deposit on previously submerged veg. Upstream around around G5 water remains in low areas

Fish being caught from fishing platform @ G2
G2_20180503_0001.pdf

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.50 9.30 7.39 75.0 15.80
3.9m 16.90 33.00 7.13 89.8 50.30
#11998 24 Apr 2018 Approved Notes:

AHD 0.12
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.60 5.60 5.32 54.9 9.80
3.5m 17.30 33.40 6.13 78.1 50.80
#11996 21 Apr 2018 Pending Notes:

AHD 0.51

Water very dark & dirty
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.70 2.90 3.34 33.2 5.32
3.8m 15.10 7.70 0.24 2.4 13.27
#11993 17 Apr 2018 Approved Notes:

AHD G6  1.66 @ 11:05     G2   1.66 @ 11:30
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.30 1.50 7.12 70.5 2.98
5.0m 17.80 32.00 0.93 11.8 48.88
#11970 13 Apr 2018 Approved Notes:

G6 AHD 1.48 @ 08:05  G2  1.53  @10:40

CCMA YEOKEL meter used. Turbidity -wide range & erratic

Wind driven waves going downstream. Water very reddish brown colour 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.3 6.7 17.80 3.50 6.34 72.6 6.23
4.8m 15.3 7.2 18.20 33.30 2.81 36.6 50.79
#11952 10 Apr 2018 Approved Notes:

AHD 1.50

N wind sending large ripples downstream
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.00 2.40 6.31 68.8 4.39
4.8m 17.80 32.50 1.32 16.9 49.47
#11945 6 Apr 2018 Approved Notes:

AHD G2 1.47     G6 1.42  @  10:39
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.7 18.00 2.80 5.67 67.0 5.21
4.8m 9.0 7.2 17.90 32.40 1.98 25.3 49.47
#11911 23 Mar 2018 Approved Notes:

AHD G6 1.16 @ 10.55    AHD G2 1.19 @ 11:55

Wind driven ripples affecting flow observation

Very large number of small fish  6-12 cm. long around bridge & fishing platform
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.70 1.70 8.52 99.5 19.54
4.5m 17.50 33.20 5.19 66.1 50.50
#11894 16 Mar 2018 Approved Notes:

CCMA's YEOKEL meter used for monitoring

AHD G6 0.65 @ 08:00    0.71 @   14:46

AHD G2 0.71 @ 10:25     0.75 @   13:35

NTU's 70 @ 0.50 depth at halocline, rising at top of salt wedge then increasing with depth

Only intermittent waves overtopping berm over a high sand build up at recently opened entrance (20-03-18) . No exchange or out flow from estuary

Flats from G4 & Latrobe creek draining into river channel

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.2 6.8 18.50 0.40 5.36 58.3 2.70
4.1m 12.2 6.9 18.00 28.80 0.44 5.5 44.59
#11887 14 Mar 2018 Approved Notes:

AHD  G2 0.74  @16:05      -     G6 AHD  0.70  @ 17:10
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 21.00 1.60 4.41 49.7 3.14
4.0m 17.70 27.80 2.13 26.2 43.07
#11881 13 Mar 2018 Approved Notes:

AHD G2  0.57  @ 12:25    -   0.55  @ 13:15   -  G6 0.66  @ 12:01

Large number of small fish around poles of fishing platform G2 also along edge of low track- very active

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.20 1.30 3.49 37.5 2.49
3.9m 17.60 27.60 4.16 51.3 42.87
#11875 12 Mar 2018 Approved Notes:

AHD G2   0.37 @ 10:55  - dropped to 0.35 @ 14:55 G6  0.40 @ 15:17

Slight current going downstream, but wind driven waves from south going upstream to G2

Oily slick on surface of water in sheltered areas on west bank
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 18.10 1.80 1.79 19.1 3.40
3.5m 18.60 31.30 0.04 0.5 47.94
#11874 11 Mar 2018 Approved Notes:

Post Artificial Opening completed 15:20  on 10-03-2018

AHD    G2  1.26 @  07:30 -  1.26  @ 10:40- G6 1.33 @ 07:15

Strong S/E wind driving waves upstream to G2 . Strong out flow discharging out through a wide entrance.

Strong current movement in water column made monitoring difficult. Water colour very dark (turbidity not measured)
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.80 1.50 0.83 9.1 3.33
4.5m 18.30 31.80 0.03 0.3 48.55
#11873 10 Mar 2018 Approved Notes:

Pre Artificial Opening

AHD G2 1.50  @10:00    G6  1.45 @  09:05
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.70 1.10 5.93 66.6 2.23
5.0m 18.10 32.10 0.03 0.4 49.04
#11860 5 Mar 2018 Approved Notes:

AHD G2 1.47 @11:55   G6 1.42   @ 08:05

Deck of fishing platform completely under water

Large schools of small fish around bridge & auto monitor  intake, also in pools & water on side of OOR at flood markers
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.00 1.40 6.44 71.5 2.67
4.8m 18.20 31.90 0.04 0.5 48.83
#11836 28 Feb 2018 Approved Notes:

AHD 1.42 @ 08:15

27-02-2018  (late pm.) Water only over low track & low area on top track- none over OCR& camp ground. Some water at side of road on OOR at flood markers where a huge no. very small fish were observed in pool. Flats flooded D/S G4 & water in drains U/S. Water just starting to enter flats (water logging) immediately around this area.

Drilling for core samples started in preparation for new bridge over Gellibrand (G2 site) on 26th. /27th.& 28 th Feb.also at start of OCR from GOR & also W of campground boundary
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 20.70 1.40 6.55 73.6 2.78
4.8m 9.0 6.9 18.30 32.00 0.05 0.8 49.07
#11827 21 Feb 2018 Approved Notes:

AHD G6 1.30 @ 11:10  G2 1.33  @  11:30

Very humid conditions Air temp 24C.

Water up to base of fishing platform deck

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.9 21.20 1.60 7.79 88.5 3.03
4.7m 9.0 7.0 18.40 32.30 0.04 0.5 49.23
#11855 16 Feb 2018 Approved Notes:
  • This monitoring was conducted as part of the Index of Estuary Condition.
  • The CCMA YeoKal was used.  It can measure turbidity below 9 NTU.

 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 2.8 7.3 19.00 2.80 7.89 85.9 5.21
4.7m 2.8 7.2 18.70 33.60 0.64 8.4 51.09
#11777 9 Feb 2018 Approved Notes:

Fine black particles throughout bottom turbidity sample -top sample very clear
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.0 22.50 1.50 6.26 73.0 2.82
4.5m 9.0 7.1 18.30 32.50 0.05 0.6 49.59
#11762 2 Feb 2018 Approved Notes:

AHD G2  1.11 @ 11:56     G6   1.08  @ 11
:27

Flow estimate  difficult because of wind driven waves.

Mouth still barred -more sand sea side of berm & sand very high at east end of beach. Estuary front wider but low track not yet completely covered all way. No water over any roads or other tracks.

New sample equip for pH & turbidity used. Chart used for NTU's. Water sample from 10 cm  above bottom contained small specks of black sediment & very small pieces of algae
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.2 19.80 1.90 7.99 88.5 3.52
4.5m 9.0 7.2 18.20 32.60 0.06 0.8 49.67
#11804 29 Jan 2018 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 5.7 7.1 26.60 2.60 6.25 79.0 4.92
4.3m 5.7 7.2 18.60 33.90 1.18 15.6 51.64
#11731 21 Jan 2018 Approved Notes:

AHD 0.68  @ 09:40

Recent high temperatures (18 &19 th Jan = 38C.) replaced by cool moist foggy conditions

Very large no of waterbirds on N wetlands. Dragonflies around G2 & estuary
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.2 21.30 2.40 7.97 91.4 4.50
3.9m 9.0 18.00 32.90 0.24 3.1 50.10
#11709 7 Jan 2018 Approved Notes:

AHD G2  0.62 @  09:40                                                                                      G6   0.68  @13:15

Salt wedge at 2.50m from top @  G4    D.O. levels low below 2.50m    

no salt at G5 
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.0 20.40 2.90 7.31 82.3 5.42
4.0m 9.0 18.00 33.20 1.73 22.2 50.60
#11681 27 Dec 2017 Approved Notes:

Monitoring very difficult because of large no. people diving off bridge, swimming & boating around probe area

AHD G2  0.53
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 11.0 7.0 20.40 4.90 8.10 90.4 8.82
3.6m 11.0 17.90 33.90 4.95 64.0 51.50
#11599 17 Nov 2017 Approved Notes:

AHD G2 0.33@ 09:52

Freshwater inflow between slow & pool but going both US & DS
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 19.20 1.10 6.49 70.8 2.06
3.7m 13.0 15.20 31.60 3.13 37.8 48.43
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