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G5 Coxon's Bridge

Active Physico-Chemical 21-04-2007 - 21-06-2024

Gellibrand River Estuary

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234 results found (Displaying 1 - 50)
ID Date Status Details
#16263 21 Jun 2024 Approved Notes:

Kim Morton also attended and sampled
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.2 9.20 0.20 11.20 102.6 0.32
1.4m 9.0 6.5 9.20 0.20 11.13 101.9 0.32
#16255 17 May 2024 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 12.60 0.20 9.52 95.2 0.32
1.5m 9.0 6.6 12.30 0.20 9.49 94.0 0.32
#16247 19 Apr 2024 Approved Notes:

Estuary is closed.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.4 15.00 0.20 8.11 85.2 0.31
2.4m 9.0 7.2 14.10 0.20 8.04 83.2 0.31
#16125 15 Mar 2024 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 18.30 0.20 6.35 72.2 0.29
1.5m 9.0 7.0 17.90 0.20 6.28 70.7 0.29
#16037 16 Feb 2024 Approved Notes:

Sandi Stannard present

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 0.20 7.31 80.7 0.28
1.4m 9.0 6.9 17.30 0.20 7.15 79.0 0.28
#16033 19 Jan 2024 Approved
gp1_1
gp1_1
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.1 18.20 0.20 7.20 81.0 0.27
1.8m 9.0 6.4 18.40 0.20 7.10 80.0 0.27
#15951 22 Dec 2023 Approved Notes:

Not as many water birds around as previously
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.5 17.40 0.20 8.26 91.9 0.28
1.4m 9.0 6.7 17.30 0.20 8.22 91.1 0.28
#15866 17 Nov 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 6.3 15.40 0.20 8.67 92.5 0.29
1.7m 10.0 7.0 15.00 0.20 8.71 91.8 0.29
#15817 20 Oct 2023 Approved Notes:

River flats still quite full

Large numbers of ducks and other waterfowl. White-necked heron spotted.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 7.1 13.80 0.20 9.41 96.8 0.28
2.0m 24.0 7.1 13.50 0.20 9.42 96.4 0.28
#15747 15 Sep 2023 Approved Notes:

River flats still full
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 6.7 12.50 0.20 9.99 99.9 0.30
2.4m 24.0 6.9 12.10 0.20 10.04 93.9 0.30
#15721 25 Aug 2023 Approved Notes:

River flats full++
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 27.0 6.8 11.40 0.20 10.12 98.4 0.29
3.0m 27.0 6.9 11.10 0.20 10.14 97.6 0.29
#15670 21 Jul 2023 Approved Notes:

River flats full

Old Ocean Road has many holes, corrugations and cracks due to water flows across it.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 23.0 6.9 9.00 0.20 10.70 97.5 0.29
2.8m 23.0 6.9 8.90 0.20 10.62 96.6 0.29
#15578 16 Jun 2023 Approved Notes:

River flats full

Lots of birdlife
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 53.0 7.0 11.10 0.20 9.84 94.7 0.31
3.1m 53.0 6.9 10.90 0.20 9.76 93.5 0.32
#15532 19 May 2023 Approved Notes:

Plenty of water in flats.

Lots of waterfowl-swamp-hens, black swans
G5_Coxons_19th_May_2023.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.3 10.60 0.20 10.43 99.5 0.30
1.8m 10.0 7.2 10.30 0.20 10.47 98.8 0.30
#15488 21 Apr 2023 Approved Notes:

River flats contain water. Many swans and ither water fowl.
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 6.8 14.20 0.20 9.10 94.0 0.30
2.0m 15.0 6.8 14.00 0.20 9.05 93.4 0.30
#15370 24 Mar 2023 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.9 16.30 0.20 8.09 87.5 0.27
1.3m 9.0 7.0 16.30 0.20 8.00 86.6 0.27
#15284 10 Feb 2023 Approved Notes:

Good birdlife-black swans+++

Cattle grazing close to river

Water still present in flats
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 12.0 6.9 17.70 0.20 7.63 85.5 0.29
1.4m 12.0 7.1 17.40 0.20 7.61 84.6 0.29
#15254 21 Jan 2023 Approved Notes:

Residual water in flats
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 7.2 17.50 0.20 7.51 83.9 0.27
1.3m 10.0 7.0 17.50 0.20 7.43 82.8 0.27
#15180 16 Dec 2022 Approved Notes:

Water on flood plains

Some drag on cable
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 6.9 14.20 0.20 9.17 95.1 0.28
2.6m 24.0 7.0 14.00 0.20 9.14 94.2 0.28
#15139 18 Nov 2022 Approved Notes:

River flats full of water

Extensive Cape Pond Weed in flats
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 21.0 6.9 14.10 0.20 9.06 93.8 0.26
2.7m 21.0 6.9 14.00 0.20 9.03 93.0 0.26
#15085 21 Oct 2022 Approved Notes:

River flats full of water

Weights attached to probe rope, still a strong drag on probe.
G5_Coxons_21st_Oct.2022_.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 40.0 6.3 14.80 0.20 7.39 77.7 0.23
3.2m 40.0 6.6 14.50 0.20 7.38 76.9 0.23
#15024 16 Sep 2022 Approved Notes:

Much water in river flats with white flowering plants
G5_Coxon_039_s_16thSept._2022_.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 21.0 6.0 11.40 0.20 9.99 97.3 0.29
2.8m 21.0 6.7 10.80 0.20 10.13 97.0 0.29
#14956 19 Aug 2022 Approved Notes:

Valley is wet. Water over floodplains. River banks are still exposed.

Unable to collect bottom sample as flow is very strong.

Hach HQ40d meter used.
G5_Coxons_pdf.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 60.0 6.5 11.10 0.20 8.54 82.3 0.23
3.4m 60.0 10.90 0.20 8.47 81.1 0.23
#14907 22 Jul 2022 Approved Notes:

River flats full

pH meter could not be calibrated,showed Err4 sensor needs replacing
EW_22nd_July_2022_.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 27.0 7.70 10.76 90.4 0.28
3.0m 27.0 7.60 10.65 89.1 0.28
#14692 19 May 2022 Approved Notes:

River flats full of water
G5_19th_May_2022_.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.4 11.90 8.97 83.3 0.33
2.0m 9.0 6.6 11.80 8.88 82.2 0.33
#14630 22 Apr 2022 Approved
G5_22nd_April_2022_.pdf
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.4 14.00 8.52 83.0 0.26
1.7m 9.0 7.3 14.10 8.28 80.5 0.27
#14613 18 Mar 2022 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.2 18.40 7.03 75.1 0.27
1.1m 9.0 7.1 18.50 6.98 74.5 0.27
#16259 18 Feb 2022 Approved Notes:

Windy day
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.6 18.00 7.47 79.2 0.27
1.3m 9.0 6.9 18.00 7.35 77.7 0.27
#14419 17 Dec 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 6.9 17.00 7.92 82.1 0.25
1.3m 13.0 6.9 16.90 7.83 80.9 0.25
#14361 19 Nov 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 21.0 6.4 13.50 9.00 86.8 0.24
2.5m 21.0 6.5 13.50 8.89 85.3 0.24
#16249 15 Oct 2021 Approved Notes:

Monitoring abandoned - foul weather
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 7.3 12.30 0.20 8.84 82.6 0.29
3.0m 7.6 12.40 0.20 8.74 81.9 0.30
#14288 17 Sep 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 10.50 9.64 86.6 0.29
2.3m 14.0 10.40 9.52 85.3 0.29
#14260 20 Aug 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 24.0 11.00 9.60 87.0 0.27
3.0m 24.0 11.00 9.52 86.3 0.27
#14173 18 Jun 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 23.0 6.1 10.40 8.91 79.6 0.27
3.0m 23.0 6.5 10.30 8.86 79.0 0.27
#14137 21 May 2021 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 16.0 6.4 10.50 9.33 83.8 0.25
2.8m 16.0 6.4 10.50 9.24 82.8 0.25
#14066 16 Apr 2021 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 13.20 8.72 83.4 0.25
1.8m 9.0 6.5 13.10 8.63 82.2 0.25
#14032 26 Mar 2021 Approved

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.7 17.50 7.00 73.1 0.26
1.5m 9.0 6.7 17.40 6.93 72.5 0.26
#13646 20 Mar 2020 Approved Notes:

Water on flats from downstream Coxon's access - no water up stream

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.1 16.10 0.10 6.14 62.6 0.26
2.2m 9.0 7.1 16.10 0.10 5.80 60.8 0.26
#13582 21 Feb 2020 Approved Notes:

S.E. wind 2-3

Spring on side of OOR between G6 & G5 running & drain filled with red sediment  =    pH 5.8

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.1 17.20 0.10 6.26 65.0 0.26
1.4m 9.0 6.8 17.20 0.10 5.99 62.4 0.26
#13511 17 Jan 2020 Approved Notes:

AHD unreadable
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 7.0 18.00 0.10 5.70 63.1 0.25
1.6m 9.0 7.0 18.10 0.10 5.80 61.6 0.25
#13461 20 Dec 2019 Approved Notes:

AHD board @ G6 heavily coated with silt -unreadable

Strong north east wind
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 7.1 18.40 0.10 7.76 83.0 0.26
1.5m 17.0 6.6 18.40 0.10 7.53 80.0 0.26
#13426 22 Nov 2019 Approved Notes:

AHD G6 1.55 @ 08:30

Flats around G5 have water cover in low areas, also Rowans Gully where the water has more extensive cover
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.0 6.6 15.10 0.10 8.50 84.6 0.26
2.1m 19.0 6.7 15.10 0.10 8.40 83.6 0.26
#13365 18 Oct 2019 Approved Notes:

AHD G6  1.64 @ 08:30

Flow rate difficult to establish because of strong wind driven waves going upstream         but some probe drift downstream

Flats have nearly drained but water remaining in very low areas & drains where Cape pondweed is flowering prolifically
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 7.1 12.80 0.10 8.52 80.8 0.31
2.1m 13.0 6.8 12.80 0.10 8.37 79.2 0.31
#13333 20 Sep 2019 Approved Notes:

AHD @ G6 about 2.20

Flats around G5 & upstream still have extensive water cover. Cape pond weed flowering prolifically around G5
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 6.6 10.80 0.10 10.80 97.0 0.29
2.7m 17.0 6.8 10.70 0.10 9.69 87.5 0.29
#13296 31 Aug 2019 Pending Notes:

AHD G6 2.73 @ 08:00

Water level high with fast flow down channel - 4 weights needed on rope

Turbidity & pH not taken at bottom depth because of fast flow

All flats both downstream & upstream to G6 still have extensive water coverage, Cape pond weed flowering prolifically around G5
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 6.6 9.50 0.10 9.96 88.2 0.28
3.2m 20.0 9.40 0.10 9.90 88.2 0.28
#13162 21 Jun 2019 Approved Notes:

AHD G6  2.28 @ 08:30

Bottom turbidity not sampled because of fast flow

Cape pond weed prolific in flood water covering flats around G5
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 17.0 6.5 8.70 0.20 8.99 77.5 0.38
2.6m 17.0 8.80 0.20 8.85 76.2 0.38
#13073 17 May 2019 Approved Notes:

AHD G6 about 0.98 @ 08:33 (board not yet cleaned)

River low level

Farmers maintaining  flats (drains) for winter

Black swans on flats

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 6.3 11.50 0.10 8.36 77.3 0.29
1.5m 10.0 6.3 11.60 0.10 8.11 75.2 0.29
#12856 19 Apr 2019 Approved Notes:

AHD board @ G6 covered with silt & unreadable

Water level low. Large school of fish observed in river near bridge.                            Water looked dirty but turbidity very low
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.5 14.10 0.10 7.03 68.4 0.38
1.4m 9.0 6.6 14.10 0.10 6.71 55.2 0.28
#12845 11 Apr 2019 Approved Notes:

AHD G6 1.25
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.00 0.10 6.82 66.2 0.28
1.9m 13.90 0.10 6.75 65.4 0.28
#12808 2 Apr 2019 Approved Notes:

AHD @ G6  0.88 @ 13:43 estimate only as AHD board is covered with silt
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.00 0.10 8.52 84.5 0.29
1.4m 14.60 0.10 8.49 83.8 0.29
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