Pumping Test for Wells

A pumping test is a type of flow test that is a practical, reliable method of estimating well performance, well yield, the zone of influence of the well and aquifer characteristics. A pumping test is generally required to support your water licence application.

In a pumping test, the well is pumped under controlled conditions and the water level in the well is measured over time to determine drawdown.

Pumping tests are commonly used to:

  • Determine the maximum sustainable yield for a well
  • Assess the impacts of the proposed well on neighbouring wells or water bodies
  • Obtain aquifer properties, such as permeability and boundary conditions

Who Can Conduct a Pumping Test

We recommend that a professional with a competency in hydrogeology design and supervise the pumping test, and interpret the results.

Under the Water Sustainability Act (WSA), pumping tests may be conducted by:

  • A registered well driller
  • A registered well pump installer, or
  • A person working under the direct supervision of the registered well driller, registered pump installer or professional with competency in hydrogeology