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Matthew Gilfoy, Title 5 System Inspector (SI #13640)

Matthew Gilfoy is on the NEIWPCC list of MassDEP-approved Title 5 System Inspectors dated October 2, 2026 (SI #13640), based in Sandwich, MA. Approval on that list runs to June 30, 2027.

SI number#13640
Approval expiresJune 30, 2027
Approved byMassachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
Business listingB & B Excavation
Based inSandwich, MA
CountyBarnstable County

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Source: NEIWPCC System Inspector list, retrieved 2026-10-12. No phone or email is published on the source list. A listing is not an endorsement.