---
title: "Matthew Robinson, Title 5 System Inspector SI #4992 | Title 5 Roster"
description: "Matthew Robinson is a MassDEP-approved Title 5 System Inspector (SI #4992) based in Ayer, MA. Approval expires June 30, 2027 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/matthew-robinson-si4992/
---

# Matthew Robinson, Title 5 System Inspector (SI #4992)

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

* **SI number:** #4992
* **Approval expires:** June 30, 2027
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** R. M. Ratta Corp.
* **Based in:** Ayer, MA
* **County:** Middlesex County

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