Balthazar, D, Fleming, L & Vlot, E 2023, 'Case study: Brucejack paste backfill pumping system', in GW Wilson, NA Beier, DC Sego, AB Fourie & D Reid (eds), Paste 2023: Proceedings of the 25th International Conference on Paste, Thickened and Filtered Tailings, University of Alberta, Edmonton, and Australian Centre for Geomechanics, Perth, pp. 40-46, https://doi.org/10.36487/ACG_repo/2355_02 (https://papers.acg.uwa.edu.au/p/2355_02_Vlot/) Abstract: Brucejack mine has been operating a paste backfill system since June 2017. In this case study, the reasons for adopting a paste backfill system will be reviewed, and actual operating conditions will be compared with the earlier envisaged design conditions. Lessons learned will be shared to provide for operational insights around the backfill system and GEHO® hydraulic piston pumps that are used for pumping paste backfill. Keywords: paste backfill, hydraulic piston pumps