Which of the following is not typically included in a sanitary survey?

A sanitary survey is a comprehensive assessment of a water system that evaluates various components related to the quality and safety of drinking water. It aims to identify any potential sources of contamination and assess the adequacy of the water supply, treatment processes, distribution systems, and overall management practices.

Focusing on the correct choice, fire department hydrants are not typically included in a sanitary survey. Sanitary surveys concentrate on aspects directly related to the drinking water supply such as water sources, storage facilities, and management and operational practices of the water system. While hydrants are important components of fire protection and may be connected to the drinking water system, they do not fall under the primary focus of ensuring the safety and quality of drinking water. Hydrants are generally considered part of the distribution system but do not directly impact the sanitary conditions of the water supply.

In context, options like water sources, storage facilities, and water system management and operations are essential elements that directly influence the safety, quality, and reliability of drinking water, making them standard components of a sanitary survey.