---
title: "Heidi Porter, Title 5 System Inspector SI #12891 | Title 5 Roster"
description: "Heidi Porter is a MassDEP-approved Title 5 System Inspector (SI #12891) based in Beverly, MA. Approval expires June 30, 2028 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/heidi-porter-si12891/
---

# Heidi Porter, Title 5 System Inspector (SI #12891)

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

* **SI number:** #12891
* **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:** Beverly, MA
* **County:** Essex County

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