In order to assess the impacts on stakeholder decisions and actions linked to iUTAH's social and engineering science and research efforts, interviews were conducted in 2017 with 17 researchers and 13 external partners (who were identified by researchers as having been involved in collaborative efforts). Interviews were recorded, transcribed and analyzed thematically for reporting. For 16 participants (8 researchers and 8 external partners), a revised informed consent process was conducted in which they all agreed to be identified in project reporting on 4 case studies. All other participants remain confidential per the original informed consent process. We have included the interview protocols (questions) for researchers and partners (as questions asked to the researchers and partners differed slightly) as well as a summary report of findings. An article based on these interviews is published as follows: Flint CG, KT Dean, B Yang, and D Jackson-Smith. 2019. Socio-scientific research and practice: evaluating outcomes from a transdisciplinary urban water systems project. Socio-Ecological Practice Research. https://doi.org/10.1007/s42532-019-00007-5