---
title: "Liam McCool, Title 5 System Inspector SI #15209 | Title 5 Roster"
description: "Liam McCool is a MassDEP-approved Title 5 System Inspector (SI #15209) based in Springfield, MA. Approval expires July 1, 2029 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/liam-mccool-si15209/
---

# Liam McCool, Title 5 System Inspector (SI #15209)

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

* **SI number:** #15209
* **Approval expires:** July 1, 2029
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** Listed under own name
* **Based in:** Springfield, MA
* **County:** Hampden County

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