---
title: "David D. Flaherty Jr., Title 5 System Inspector SI #4713 | Title 5 Roster"
description: "David D. Flaherty Jr. is a MassDEP-approved Title 5 System Inspector (SI #4713) based in Harwich, MA. Approval expires June 30, 2028 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/david-d-flaherty-jr-si4713/
---

# David D. Flaherty Jr., Title 5 System Inspector (SI #4713)

David D. Flaherty Jr. is on the NEIWPCC list of MassDEP-approved Title 5 System Inspectors dated October 2, 2026.

* **SI number:** #4713
* **Approval expires:** June 30, 2028
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** Listed under own name
* **Based in:** Harwich, MA
* **County:** Barnstable County

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