Texas Wastewater Class B Practice Exam

Which of the following is NOT an essential component of a wastewater collection system?

1. Manholes

2. Pumps

3. Storage tanks

4. Sewer mains and piping

The correct answer is: Storage tanks

In a wastewater collection system, the primary goal is to transport wastewater from its source to a treatment facility. While manholes, pumps, and sewer mains and piping are integral to this process, storage tanks do not fit the same essential role. Manholes are crucial for access to the sewer system for maintenance and inspection. Pumps are necessary when the wastewater needs to be lifted to a higher elevation, ensuring gravity flow from lower areas. Sewer mains and piping form the backbone of the collection system, allowing for the flow of wastewater. Conversely, storage tanks, while they can play a role in managing flow during periods of peak demand or wet weather, are not critical for the basic function of a collection system. They are more about managing overflow or storage rather than the direct transport of wastewater. Thus, storage tanks are not considered an essential component of the wastewater collection system.