---
title: "Patrick McDowell, Title 5 System Inspector SI #13023 | Title 5 Roster"
description: "Patrick McDowell is a MassDEP-approved Title 5 System Inspector (SI #13023) based in Dennis, MA. Approval expires June 30, 2027 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/patrick-mcdowell-si13023/
---

# Patrick McDowell, Title 5 System Inspector (SI #13023)

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

* **SI number:** #13023
* **Approval expires:** June 30, 2027
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** PKM Contractors
* **Based in:** Dennis, MA
* **County:** Barnstable County

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