Hopkins River Estuary

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158 results found (Displaying 21 - 30)
ID Date Status Details
#14965 20 Aug 2022 Approved Notes:

Assisted by Grant and Jarred.

 

Dominated by highly oxygenated and turbid freshwater in true August fashion! - J.Obst.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 26.0 8.6 12.20 1.30 9.78 90.7 2.41
2.0m 26.0 8.2 12.10 2.10 3.62 30.2 7.38
#14890 16 Jul 2022 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.9 10.80 2.60 10.55 97.3 4.86
1.5m 9.0 8.2 15.10 28.70 1.70 18.4 44.48
#14756 18 Jun 2022 Approved Notes:

Assisted by Matisse

 

Great data set again - with some really interesting low DO's in the bottom stratified level.  This is similar to what we found prior to the last artificial opening and i think this represents some 'old' seawater which has been in residence for some time now.  This doesn't pose any risk due to a highly oxygenated profile downstream, but a good example of where winter flushing is required to reset the system!  Thanks Jarred.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.4 11.60 2.40 10.55 97.4 4.50
1.7m 10.0 8.0 13.90 25.00 2.85 31.6 39.25
#14701 21 May 2022 Approved Notes:

Hi everyone, great testing once again, sincere thanks.  We've had a pretty wild couple of months on the swell front and the data shows a distinct salt-wedge as a result!  Interesting times with the mouth too, varying from an open to closed state with the ocean, but looks like it may now stay open into our winter flow season.  Thanks
Jarred.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.0 13.40 4.60 9.71 93.3 8.29
1.5m 9.0 7.7 17.30 21.80 2.45 28.2 34.62
#14670 23 Apr 2022 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.0 8.1 17.50 7.00 7.95 85.1 12.16
1.5m 9.0 7.9 18.90 15.90 1.60 18.4 26.01
#14550 18 Mar 2022 Approved Notes:

Great work on the monthly testing everyone.  System looks well mixed with good WQ conditions throughout the estuary following the recent ARMO.  Flow rates are interesting/challenging at present - enough to consistently raise the water level - but not enough to maintain an open tidal system...  Looks as though we may need to perform another artificial opening in the coming weeks t once again alleviate short-term impacts of flooding, as long as Safe, Appropriate & Effective conditions exist.  Thanks Jarred.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.0 8.2 23.20 10.70 8.36 103.6 18.03
2.0m 10.0 8.1 22.30 14.00 7.15 88.2 23.13
#14510 18 Feb 2022 Approved Notes:

Turbidity reading unavailable as Turbidity tube lost in the river

J.Obst - no worries, this happens!!  I'll get a replacement.

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 8.3 22.80 8.80 8.20 98.1 13.79
2.5m 8.1 23.20 16.60 6.43 82.0 27.02
#14459 21 Jan 2022 Approved
Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 9.3 8.2 25.50 20.70 9.41 129.0 33.15
2.0m 9.3 8.1 23.20 26.90 5.74 77.7 41.93
#14395 10 Dec 2021 Approved Notes:

Assisted by Miles

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 10.5 8.4 21.20 9.90 9.37 111.5 16.93
1.5m 10.5 8.1 18.40 32.40 7.70 98.7 49.44
#14377 19 Nov 2021 Approved Notes:

Assisted by visitor Lynn

Depth Turb NTU pH Temp ° C Salin ppt D.O. mg/L D.O. % sat EC mS/cm
0.1m 13.0 8.6 18.90 1.80 10.41 113.2 3.48
1.5m 13.0 8.0 16.10 27.70 4.70 56.2 43.16
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