What is the minimum size of the raised concrete apron that should be installed around the grade opening of transition sumps?

The minimum size of the raised concrete apron that should be installed around the grade opening of transition sumps is crucial for safety and environmental protection. A 24-inch apron is specified to help manage spills and provide stability to the surrounding area.

This width allows for an adequate buffer zone that can effectively contain potential leaks or overflows, preventing them from spreading beyond the designated area. The apron also helps direct any accumulated rainwater or runoff away from the sump area, reducing the risk of contamination of groundwater or surrounding soil.

By adhering to this standard, facilities ensure improved operational integrity, enhance safety for personnel working in or around the sump, and comply with regulatory requirements intended to protect the environment from hazardous materials associated with underground storage tanks.