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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 101 - 110)
ID Date Status Details
#11525 20 Oct 2017 Approved Notes:

AHD G2 0.35   @  10:10      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 6.8 15.70 0.20 7.51 75.8 0.37
3.6m 20.0 15.60 18.40 6.37 70.9 29.58
#11495 9 Oct 2017 Approved Notes:

AHD G2  0.60 @ 12:52

        G6  1.91 @ 12.20

W wind 4 -small waves across surface

Water dark reddish brown. 

Flats draining around G5 water almost clear downstream of G5

Algae visible in wetlands below township & western area
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 19.0 6.6 14.00 0.30 8.25 80.1 0.59
3.9m 19.0 14.10 24.00 7.30 82.6 37.82
#11464 22 Sep 2017 Approved Notes:

AHD 0.8 @ 12:18  Board covered with silt- almost unreadable

Flow affect on probe was checked by attachment to weighted rope at lower depth & found to have correct reading previously
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 20.0 6.8 12.20 0.10 7.59 71.0 0.27
4.2m 20.0 12.00 0.10 7.89 73.4 0.27
#11449 17 Sep 2017 Approved Notes:

AHD G6 3.90 @ 08:15

        G2 0.76  @ 08:40

Strong N wind 4

Water very dark & dirty

Recent heavy rainfall  (G6 16/09/17 20 ml o/n)  has caused levels to rise again with water over/bank from G6 -G4. At G4 water is up on the concrete deck & over top of causeway but just starting to go over/bank immediately D/S of bridge - no flooding on flats beyond this point. Water is across OOR near flood markers but passable by 4x4. Flooding from run off (N - S flow) only
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 40.0 6.8 10.70 0.10 7.58 68.2 0.32
3.9m 40.0 10.60 0.20 7.35 66.1 0.35
#11421 1 Sep 2017 Approved Notes:

AHD G2   0.29     AHD G6     2.43 @ 10:07

Freezing cold N wind 5

White egret on bridge
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 14.0 6.6 9.00 0.20 9.72 84.1 0.41
3.6m 14.0 8.90 0.20 9.30 80.4 0.43
#11400 20 Aug 2017 Approved Notes:

Monitoring was discontinued after 2.00m. because of extremely fast flow

AHD G2 80 NTU's          G6    80 NTU's  pH 7.0

Strong flow out from the mouth has continued throughout this rainfall event

Initial flooding of OOR occurred after very heavy local rainfall. Flow across the road was only from North (runoff)
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 80.0 7.1 9.40 0.10 7.96 69.6 0.30
2.0m 80.0 9.30 0.10 7.90 69.0 0.36
#11361 10 Jul 2017 Approved Notes:

AHD G2 0.86 @10:20     G6  3.08  @ 08:22

Water very dirty  pale brown in colour, high turbidity which extends into estuary

No flooding but some water along N. side of OOR at flood markers (from run off)

Sufficient flow to require weights to rope ( probe attached)
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 70.0 6.8 8.70 0.20 7.18 61.4 0.43
4.0m 70.0 8.80 0.20 7.15 61.6 0.49
#11300 2 Jul 2017 Approved Notes:

AHD 0.59

Very cold N wind 3. Air temp 11C
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.9 8.60 2.00 9.78 85.0 3.77
3.9m 9.0 14.00 32.20 4.75 46.1 49.20
#11265 16 Jun 2017 Approved Notes:

AHD 0.69
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 6.9 10.80 3.50 8.10 74.6 6.44
4.0m 9.0 13.80 29.50 5.88 68.6 45.62
#11244 1 Jun 2017 Approved Notes:

AHD 0.32  @  11:27

Large amount of black gritty sand on weights
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 15.0 6.4 10.30 0.60 7.44 66.5 1.25
3.8m 15.0 10.40 1.70 4.44 40.0 3.31
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