Water resource models play a crucial role in water markets, but they often represent one value system. There is growing interest in incorporating social factors into water resource models to better capture the complexity of socio-ecological systems and represent the diverse interests of stakeholders. Traditionally, these models have relied on economic indicators to represent human interests, but economic factors are only one aspect of stakeholder values. Different stakeholders often have a diverse range of priorities. We examine how different community value systems could be incorporated in water resource modelling by conducting semi-structured interviews with community members from different backgrounds in the Goulburn-Broken River Catchment. Through the interviews, we identified core value systems driving stakeholder decision making and developed conceptual maps illustrating how specific values were prioritised or de-prioritised under resource scarcity for each core value system. We then used these conceptual maps to adjust indicators within an existing water resource model of the Goulburn-Broken River Catchment. This project will explore how different value systems may be represented in existing water resource models. Our results will provide a framework for integrating diverse stakeholder values into water resource models, better reflecting the complexities of real-world freshwater decision making. Our findings offer insights for improving stakeholder representation in water management, ultimately supporting more inclusive and effective resource planning.