Which of the following components is NOT a part of site security controls?

The correct answer indicates that moats are not considered a standard component of site security controls in the context of hazardous waste operations and emergency response. Fencing, barriers, and cameras are common elements utilized to secure a site by providing physical access control and surveillance.

Fencing acts as a first line of defense, preventing unauthorized access. Barriers can be additional structures or landscaping features that further deter entry and protect sensitive areas. Cameras enhance safety by enabling monitoring of the site in real-time and allowing for the recording of activities for security assessments and incident investigations.

Moats, while historically significant in the context of fortification, are impractical and not typically used in modern site security for hazardous materials. They require significant maintenance and present logistical challenges, making them less effective than the more straightforward security measures like fencing, barriers, and cameras.