---
title: "Frank J. Massarelli, Title 5 System Inspector SI #13802 | Title 5 Roster"
description: "Frank J. Massarelli is a MassDEP-approved Title 5 System Inspector (SI #13802) based in Pepperell, MA. Approval expires June 30, 2029 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/frank-j-massarelli-si13802/
---

# Frank J. Massarelli, Title 5 System Inspector (SI #13802)

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

* **SI number:** #13802
* **Approval expires:** June 30, 2029
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** Listed under own name
* **Based in:** Pepperell, MA
* **County:** Middlesex County

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