---
title: "Joseph Wilkinson III, Title 5 System Inspector SI #13445 | Title 5 Roster"
description: "Joseph Wilkinson III is a MassDEP-approved Title 5 System Inspector (SI #13445) based in Sheffield, MA. Approval expires June 30, 2029 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/joseph-wilkinson-iii-si13445/
---

# Joseph Wilkinson III, Title 5 System Inspector (SI #13445)

Joseph Wilkinson III is on the NEIWPCC list of MassDEP-approved Title 5 System Inspectors dated October 2, 2026.

* **SI number:** #13445
* **Approval expires:** June 30, 2029
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** JR Wilkinson Construction
* **Based in:** Sheffield, MA
* **County:** Berkshire County

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