This presentation investigates applying small soil resistivity spacings (sub 1m) in the Wenner Method. The investigation will include control tests, tests at multiple soil types and in different regions of Australia as well as modelling examples to demonstrate whether the small spacings have an impact on design and testing. Generally, for small spacings the electrode depth has an impact on the calculated apparent resistivity. The presentation will also validate this and demonstrate the difference between the more complex formula as specified in IEEE 80 and the simplified version. The findings from this will be particularly important for pipelines where corrosion is a high risk as well as accessible appurtenances. It may also affect the calculation of safety criteria as the thin top layer soil resistivity could be different than lower layers which larger spacings do not facilitate in measuring.