---
title: "Charles P. Hartwell, Title 5 System Inspector SI #98 | Title 5 Roster"
description: "Charles P. Hartwell is a MassDEP-approved Title 5 System Inspector (SI #98) based in Maynard, MA. Approval expires June 30, 2028 per the NEIWPCC list."
canonical: https://title5roster.com/inspectors/charles-p-hartwell-si98/
---

# Charles P. Hartwell, Title 5 System Inspector (SI #98)

Charles P. Hartwell is on the NEIWPCC list of MassDEP-approved Title 5 System Inspectors dated October 2, 2026.

* **SI number:** #98
* **Approval expires:** June 30, 2028
* **Approved by:** Massachusetts Department of Environmental Protection (MassDEP); list published by NEIWPCC
* **Business listing:** CH Septic
* **Based in:** Maynard, MA
* **County:** Middlesex County

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