---
title: "Mark Yourell, Title 5 System Inspector SI #15149 | Title 5 Roster"
description: "Mark Yourell is a MassDEP-approved Title 5 System Inspector (SI #15149) based in Hingham, MA. Approval expires February 1, 2029 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/mark-yourell-si15149/
---

# Mark Yourell, Title 5 System Inspector (SI #15149)

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

* **SI number:** #15149
* **Approval expires:** February 1, 2029
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** E.L. Margetts & Sons Inc.
* **Based in:** Hingham, MA
* **County:** Plymouth County

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