This is a sources sought notice for market research, not a solicitation, seeking contractors to compile existing tribal streamflow and groundwater elevation data from 1950 to 2026 for the Keweenaw Bay Indian Community (KBIC) model area to support groundwater model history matching. The contractor will also participate in meetings to provide local knowledge feedback on model results and scope refinement. The performance location is the KBIC L’Anse Reservation and specified study basins in Michigan. No budget amount is specified. Responses are due by May 22, 2026, at 2:30 p.m. Mountain Daylight Time.