Laboratory complex conductivity data from partially saturated sand columns with silver nanoparticles. This dataset is not publicly accessible because: It involves two universities and the EPA. The EPA collaborated in the research; but did not provide funding. The data are the property of the universities. It can be accessed through the following means: The authors can be contacted individually for the data. Format: The data will be in xlsx format. This dataset is associated with the following publication: Abdel Aal, G., E. Atekwana, and D. Werkema. Complex conductivity response to silver nanoparticles in partially saturated sand columns. JOURNAL OF APPLIED GEOPHYSICS. Elsevier Science Ltd, New York, NY, USA, 137: 73-81, (2017).