Interpreting a water quality report involves understanding several key elements: - Contaminant Levels: Look for the Maximum Contaminant Levels (MCLs), which are the highest levels of a contaminant allowed by law. - Health Guidelines: Compare the contaminant levels with health-based guidelines to understand the potential health risks. - Sources of Contaminants: Identify whether the contaminants originate from natural sources, industrial activities, or agricultural runoff.