*1.1. Conceptual Framework*

Our study's conceptual framework integrates conceptualizations of risk from Saylor (2011) [21] and Debbler et al. (2018) [30], the salience framework of Stewart (2009) [31], and the concept of trust based on Mayer et al. (1995) [32] (Figure 1).

**Figure 1.** The water source, or sources, that individuals choose to drink from is a function of their trust in the utility to deliver safe drinking water to them, salience of their home water quality, risk judgments of water safety (alone and relative to bottled water), emotional concern, severity of consequence should their water become unsafe, and quality judgments of their tap water.
