Secondary Containment Vacuum Sensing System

Maximize protection with a vacuum monitored secondary containment system.

The Veeder-Root Secondary Containment Vacuum Sensing (SCVS) System is designed to meet the California State Water Resource Control Board's (SWRCB's) Assembly Bill (AB) 2481 monitoring requirements.

AB 2481 requires that the interstitial (or secondary) space of tanks, product lines, vent lines & sumps installed below grade (i.e. base of concrete) to be monitored with a continuous vacuum or positive pressure. If the secondary space is monitored under a positive pressure (e.g. using hydrostatic fluid) the secondary space must be kept at a pressure that is greater than that in the primary. As a result, stations that have pressurized product lines will likely require a vacuum sensing system.

Click here for an overview of how SCVS System works

-	Related Links and Documents


»	Secondary Containment Vacuum Sensing System Data Sheet (576047-078 Rev B) (PDF)
»	Vacuum Sensors Installation Guide (577013-836 Rev I) (PDF)
»	Veeder-Root SCVS Field Service Bulletin (PDF)

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