Todd is a Professional Geologist (PG) and Licensed Site Professional (LSP) specializing in assessment and remediation of contaminated sites. He brings more than two decades of experience as a hydrogeologist, with particular expertise in developing conceptual site models (CSMs) and evaluating the fate and transport of contaminants within overburden aquifers. His background also includes 10 years as a regulator with the State of New Hampshire, giving him practical insight into regulatory interpretation, compliance expectations, and agency decision-making. For five of those years, he led New Hampshire’s RCRA regulatory program, directing hazardous waste policy, compliance, and implementation.
His regulatory expertise includes New Hampshire RSA 147-A, the New Hampshire Contaminated Site Management Rules (Env-Or 600) and Hazardous Waste Rules (Env-Hw 100-1400), as well as the Massachusetts Contingency Plan (MCP 310 CMR 40.0000).