Not all water damage is created equal, and the health risks and restoration requirements vary dramatically depending on the water source. What looks like a simple cleanup job might actually require specialized remediation to protect occupant health and prevent long-term contamination. Water damage classification is based on scientific understanding of contamination risks and health protection requirements. Misclassified water sources create dangerous situations when Category 2 or 3 water is treated like clean water, leaving contamination behind and creating health risks with potential mold growth. Conversely treating water as category 2 or 3 water when its category 1 water will incur unnecessary remediation costs and possible business interruption costs. Professional assessment ensures restoration methods match contamination levels and prevent inadequate cleanup that can lead to structural damage and occupant health problems.