Observation details

Overview

Estuary Powlett River Estuary
Site Site two (Mouth of Powlett Road Bridge)
Observation ID #4301
Date and Time Monday 15th November 2010 18:00pm
Approved Approved

Notes

All members were present for the QA/QC except Neil.
Freezing wind blowing off the ocean.
All present participated in the monitoring of Po 2 site.
Recent heavy rains over the weekend meant that there was quite a lot of fresh water in the estruary. At least 2 inches fell in the Catchment on Saturday and Sunday 13-14.

Depth Profiling

Depth m Temperature °C Salinity ppt D.O. mg/L D.O. % sat EC mS/cm Notes
0.1m 18.30 1.70 4.88 52.0 3.18
Previous 13.5 2.3 6.7 64.8 4.2
Median 13.5 2.30 7.30 72.10 4.2
0.5m 18.40 1.70 4.84 52.3 3.19
Previous 11.9 1.2 7.7 72.1 2.3
Median 13.6 5.50 7.51 78.30 20.0
1.0m 18.50 1.70 4.81 51.8 3.20
Previous 13.8 31.9 6.6 76.8 49.1
Median 13.8 31.90 6.58 71.80 49.1
1.5m 18.50 1.70 4.85 52.1 3.21
Previous 11.9 1.2 7.7 71.8 2.3
Median 14.1 33.20 6.58 71.80 50.6
2.0m 16.80 29.80 4.85 56.5 35.00
Previous 13.8 33.5 7.8 91.6 51.5
Median 13.8 33.50 6.44 65.20 51.5
2.5m 16.70 30.30 4.66 55.0 46.55
Previous 12.2 27.6 8.1 90.5 42.9
Median 14.2 34.30 6.44 65.20 52.1
3.0m 16.00 31.90 6.25 75.5 48.65
Previous 13.8 34.2 7.2 87.9 52.0
Median 13.8 34.20 5.08 62.80 52.0
3.5m 16.00 33.40 4.55 56.0 50.90
Previous 12.3 32.8 5.1 73.0 50.0
Median 14.3 34.90 5.08 62.80 52.9
3.6m 15.90 33.50 3.24 45.4 51.00
Previous 9.5 0.3 7.5 65.5 0.6
Median 14.3 34.90 4.03 53.00 52.9

Top-Bottom Sampling

Depth m Turbidity NTU pH
Top 0.1 30 7.5
Previous 0.1 30 7.5
Median 0.1 20 7.5
Bottom 3.6 20 8.0
Previous 3.6 10 8.0
Median 3.8 10 8.0

Other details

Max depth 3.75
Previous 3.60
Median 3.80
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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