These were my suggested lines of investigation to Rudra yesterday:

 

·         Is the anomalous sample from greater depth? If so possible poorly flushed water?

·         Does the borehole / well have a different water level response (or if you have undertaken falling head tests is the borehole much less permeable)? If so possible poorly flushed water?

·         Could the borehole be contaminated by a septic tank, sewage or manure pile (this could be the cause of high alkalinity and would also likely have low dissolved oxygen and likely elevated organic carbon)

 

Nick

 

Nick Rukin

 

RUKHYDRO Limited

Web: www.rukhydro.co.uk

 

 

From: The list of the Hydrogeological Group of the Geological Society [mailto:[log in to unmask]] On Behalf Of Helen Robinson
Sent: 22 November 2018 2:03 PM
To: [log in to unmask]
Subject: Re: High values in Groundwater samples

 

I agree with Michael, more information would be useful. 

 

Also what are the surrounding lithologies, geological structures and water temperatures.

 

Regards,

 

Helen

Helen Robinson MGeol, FGS

PhD candidate & UK Ambassador WING

School of Engineering

James Watt South Building

University of Glasgow

Glasgow

G12 8QQ


On 21 Nov 2018, at 19:31, Michael Price <[log in to unmask]> wrote:

I think we need a bit more information.

 

What is the sampling point – spring, borehole, dug well – and the depth?

What is the land use around this and the other points?

How does it relate topographically to the other sampling points – where would it fit in a flow system?

 

Regards, 

 

Mike

 

From: The list of the Hydrogeological Group of the Geological Society [mailto:[log in to unmask]] On Behalf Of Rudra Mohan Pradhan
Sent: 21 November 2018 17:39
To: [log in to unmask]
Subject: High values in Groundwater samples

 

Dear all,

I am really curious to know about 1-2 of my Groundwater sample analytical results. These samples shows higher values of Bicarbonate, High EC ~4500 and other major ions with high values. 

 

The study area is granitic terrain. Nearby areas sample showing normal values but when I am collecting samples of that specific place the data I am getting is higher (both the seasons).

 

What could be the reason?

Thank you.

 

Regards,

Rudra M Pradhan

IIT Bombay



--

​​Regards,

​​

 

Rudra Mohan Pradhan

Research fellow|Structural Geology Lab|Department of Earth Sciences

Indian Institute of Technology, Bombay|Powai, Maharashtra-400 076, India

 

Tel: +91-22-25724278(O)|+91-98977 54554/+91-94386 32618(P)

 

  

http://showme.co.za/vaal/files/2013/11/Fresh-Water-on-leaf-with-hand.pngA drop of water is worth more than a sack of gold to a thirsty man

​             

            Save water, it will save you later!

 

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