---
title: "Matthew J. Vacca, Title 5 System Inspector SI #14878 | Title 5 Roster"
description: "Matthew J. Vacca is a MassDEP-approved Title 5 System Inspector (SI #14878) based in Leominster, MA. Approval expires May 1, 2027 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/matthew-j-vacca-si14878/
---

# Matthew J. Vacca, Title 5 System Inspector (SI #14878)

Matthew J. Vacca is on the NEIWPCC list of MassDEP-approved Title 5 System Inspectors dated October 2, 2026.

* **SI number:** #14878
* **Approval expires:** May 1, 2027
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** Listed under own name
* **Based in:** Leominster, MA
* **County:** Worcester County

Source: https://neiwpcc.org/wp-content/uploads/2026/10/SI-Instate-10.2.2026.pdf (retrieved 2026-10-12)