Which term refers to a structured process used to identify weaknesses in a water system's defenses against contamination?

• A. Water Quality Audit
• B. Water Vulnerability Assessment (WVA)
• C. Sanitation Survey
• D. Environmental Impact Assessment

Answer: (B)

A Water Vulnerability Assessment focuses on assessing how robust a water system is against contamination by systematically identifying where defenses may fail. It looks at the entire protection chain—from source water protection and treatment barriers to the security of the distribution system, ongoing monitoring, and emergency response—and evaluates where weakness or gaps could be exploited. By analyzing threat scenarios, likelihoods, and the effectiveness of safeguards, it highlights vulnerabilities and helps prioritize improvements to reduce overall risk.

This approach differs from others: a Water Quality Audit concentrates on how well water quality meets standards and operational performance; a Sanitation Survey examines sanitation conditions and public health factors; an Environmental Impact Assessment evaluates broader environmental effects of a project.