---
title: "Alan T. Watterson, Title 5 System Inspector SI #676 | Title 5 Roster"
description: "Alan T. Watterson is a MassDEP-approved Title 5 System Inspector (SI #676) based in Sharon, MA. Approval expires June 30, 2028 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/alan-t-watterson-si676/
---

# Alan T. Watterson, Title 5 System Inspector (SI #676)

Alan T. Watterson is on the NEIWPCC list of MassDEP-approved Title 5 System Inspectors dated October 2, 2026.

* **SI number:** #676
* **Approval expires:** June 30, 2028
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** ATW, Inc.
* **Based in:** Sharon, MA
* **County:** Norfolk County

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