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  4. 15-05-2010

G2 Old Coach Road Bridge Princetown

15 May 2010

Overview Notes Depth Profile Top-Bottom Documents 0 Chart
Observation details

Overview

Estuary Gellibrand River Estuary
Site Old Coach Road Bridge Princetown
Observation ID #3562
Date and Time Saturday 15th May 2010 11:44am
Approved Approved

Notes

1. AHD 0.71
2. PH top 7.0 bottom 7.5
3. Wetlands and flats around and below G4 draining. Some water higher upstream midway between G5 & G4. Vegetation washing down - G2 area and estuary smells strongly of rotting vegetation

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 12.40 0.80 7.04 66.2 EC (ms/cm) 1.786
Previous 13.3 4.3 6.9 67.8 6.6
Median 16.1 2.20 7.19 75.70 6.6
0.5m 12.30 0.90 6.70 63.0 EC (ms/cm) 1.675
Previous 15.0 20.9 5.6 61.1
Median 16.4 2.20 7.38 76.30
1.0m 12.20 1.20 6.44 60.7 EC (ms/cm) 2.504
Previous 14.1 19.7 4.0 45.8 41.9
Median 17.2 18.60 6.90 75.70 41.9
1.5m 12.40 2.80 4.81 46.1 EC (ms/cm) 3.821
Previous 15.9 29.6 6.9 84.8
Median 17.3 18.60 6.91 75.90
2.0m 12.80 3.70 4.30 42.2 EC (ms/cm) 6.77
Previous 15.6 30.9 4.3 53.8 49.9
Median 16.6 30.30 5.88 67.50 49.9
2.5m 13.40 7.20 2.76 27.4 EC (ms/cm) 10.66 (PPT constant change)
Previous 15.9 32.2 6.6 83.2
Median 16.6 30.00 5.88 67.50
3.0m 15.80 31.40 0.81 10.2 EC (ms/cm) 48.04
Previous 16.7 33.0 3.4 45.1
Median 16.9 31.90 5.17 59.10
3.3m 16.00 32.20 0.83 10.6 EC (ms/cm) 49.22
Previous 16.5 33.8 6.2 78.2
Median 17.4 31.90 5.26 62.00

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 15
Previous 0.1 10 7.0
Median 0.1 20 7.0
Bottom 3.3 20
Previous 3.7 10
Median 3.0 20

Other details

Max depth 3.41
Previous 3.83
Median 3.27
Flow estimate Slow

Observation Documents

No documents found for this observation

Preceding Observations

C Estuary is closed to the sea. O Estuary is open to the sea. P Perched
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