The LSPA presented the following compliance tip at the May Membership Meeting at the DoubleTree Hotel in Westborough, MA on May 17, 2018.
MassDEP recommends that at sites relying on a sub slab depressurization system (SSDS) to prevent exposure to contaminants of concern, annual checks be conducted of fan operation status and for potential differential pressure drops. These annual checks should be conducted as part of site maintenance and monitoring activities, and are recommended even after the installation of remote monitoring (telemetry).