This data release contains files for three scenarios of an analytic element (GFLOW) groundwater flow model with particle-tracking that were developed in cooperation with the Lac du Flambeau Band of Lake Superior Chippewa and Indian Health Service to map the probablistic plume extent for a proposed waste-water infiltration lagoon, along with maps to delineate the area contributing recharge to supply wells under 2010 and 2035 pumping conditions. Monte Carlo methods were used to run each scenario thousands of times using a range of parameters developed through prior work (https://doi.org/10.3133/sir20145020). Results illustrate that most of the infiltrated waste water would be expected to flow south, ultimately discharging to Moss and Fence Lakes. Probabalistic areas contributing recharge to the supply wells did not overlap with the new lagoon sites under 2010 pumping conditions, while the area contributing recharge under 2035 pumping conditions shows a low probability of overlapping with the new infiltration lagoon. This USGS data release contains input and output files as well as utility scripts to run a single realization of the Monte Carlo simulations, though all of the parameters used for the Monte Carlo simulations are also included in the associated *.ranvar files.