hydraulic-conductivity-slug

hydraulic-conductivity-slug

'Slug tests' are are commonly used as part of a risk assessment to help us determine groundwater contaminant flows. In this case groundwater and dissolved petroleum hydrocarbon horizontal flow velocity and contaminant transport risk offsite from a facility to the north of Sydney.
Our graduate Jessica showed her handy skills by putting together this beautifully simple slug. Slugs are essentially  a device for displacing water in a well for testing hydraulic conductivity. With a little knowhow and  some simple materials from Bunnings, an aquifer slug suitable for this test comprised of :
  • 1 x bag of heavy duty white washed sand
  • 1 x Class 12 40 mm x 1 m PVC Pipe
  • 2 x 40 mm PVC cap ends
  • 1 x small primer and PVC cement solvent glue
  • 1 x ring hook
  • 1 x roll of heavy duty string

Its was good news for our client too, as it showed there was low risk to the offsite creek 100 m to the north.

 

 

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