---
title: "Kathleen O'Neill, Title 5 System Inspector SI #14581 | Title 5 Roster"
description: "Kathleen O'Neill is a MassDEP-approved Title 5 System Inspector (SI #14581) based in Barnstable, MA. Approval expires June 30, 2027 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/kathleen-o-neill-si14581/
---

# Kathleen O'Neill, Title 5 System Inspector (SI #14581)

Kathleen O'Neill is on the NEIWPCC list of MassDEP-approved Title 5 System Inspectors dated October 2, 2026.

* **SI number:** #14581
* **Approval expires:** June 30, 2027
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** Listed under own name
* **Based in:** Barnstable, MA
* **County:** Barnstable County

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