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Guide MassDEP's Wetlands Circuit Rider Program

Wetlands circuit riders help consultants and municipal officials meet the requirements of the Wetlands Protection Act.

Table of Contents


Established by the Wetlands and Waterways Division, Circuit Riders promote fair, consistent and environmentally sound wetland permitting by the 351 local conservation commissions in the state. Circuit Riders accomplish these goals by offering technical, administrative, and regulatory assistance on numerous wetland topics to hundreds of commissions, municipal boards, and consultants each year. In 2011 the Division and its Circuit Riders were honored with the prestigious Massachusetts Association of Conservation Commission’s Environmental Service Award for the exemplary work that they do.

Commissions should look here for upcoming training opportunities. Any other questions should be directed to your regional Circuit Rider or Nancy Lin (see below). 

Additional Resources for Overview

Get to Know your Regional Circuit Rider

Nancy Lin manages and directs the Wetland Circuit Rider Program and created the Program in 1995. Since 1988 Nancy has overseen the technical assistance, outreach and education for MassDEP's Division of Wetlands and Waterways, including grant writing and management. Nancy also writes/reviews technical and regulatory guidance, policies and procedures for the Division’s three programs. Prior to MassDEP, Nancy worked at the Massachusetts Water Resources Authority; was the Director of the City of Cambridge's Conservation Commission; managed staff training for the New York City (NYC) Park Ranger program; and served as a naturalist/instructor at a National Environmental Education Landmark in NYC. Nancy is a certified Professional Wetlands Scientist (PWS) and can respond to overall Circuit Rider inquiries and questions when the regional circuit rider is unavailable. Contact Nancy at 617-556-1109 or

Alicia Geilen is the Wetlands Circuit Rider for the Northeast Regional Office. Alicia served as the conservation administrator in Ipswich for five years, and prior to that she was the conservation agent in Topsfield. She also has a decade of experience in private consulting. Most recently, Alicia worked as an environmental planner at the Northern Middlesex Council of Governments. Alicia earned a Master's Degree in Urban and Environmental Policy from Tufts University, and a Bachelor's Degree in Environmental Studies from the University of Kansas. She can be contacted at and at 978-694-3234. The NERO Wetlands Help Line is also available: Leave a message at 978-694-3405 and a staff person will return your call.

Kimberly Roth is the Circuit Rider for the Central Regional Office. Prior to joining MassDEP, Kim was the program manager for New England Interstate Water Pollution Control Commission’s (NEIWPCC) wetlands projects. This work included coordinating the Wetlands Workgroup and the New England Biological Assessment of Wetlands Workgroup (NEBAWWG), groups that bring together representatives from state and federal agencies and other individuals to address issues of shared concern. Before working at NEIWPCC, Kim was an intern for MassDEP’s Wetlands Program, providing support in wetlands compliance and enforcement, and in the Bureau of Waste Site Cleanup, where she researched information on site history and contamination. She also serves on her local conservation commission as vice-chair. Kim has her Master’s Degree in Environmental Law and Policy from Vermont Law School and a B.A. in Global Studies with an Environmental Perspective from Lesley University. Reach Kim at or at 508-767-2711.

Andrew Poyant is the Circuit Rider for the Southeast Regional Office. Prior to joining MassDEP, Andrew was a Town Planner and Conservation Agent for the Town of Rehoboth. Andrew also worked for ten years as an Environmental Scientist for the consulting firm of CDM Smith, with extensive experience in the Massachusetts Wetlands Protection Act, 401 Water Quality Certification, Chapter 91 Waterways, Massachusetts Environmental Policy Act, Massachusetts Coastal Zone Management Act, Natural Heritage and Endangered Species Program and Section 404 of the Clean Water Act. He has broad field experience in wetland delineation, wetland functions and values assessments, vernal pool monitoring, and wildlife habitat assessments, construction monitoring of wetland restoration and replication, erosion and sedimentation control inspections, stormwater management and post construction wetland monitoring. Andrew holds a BS in Biology from UMass Dartmouth and a MS in Plant and Soil Science from UMass Amherst. He is a certified Professional Wetlands Scientist (PWS) from the Society of Wetlands Scientists and a Certified Wetland Scientist (CWS) for the State of New Hampshire. Reach Andrew at 508-946-2845 or Wetlands technical questions for the Southeast Region can also be directed to their Help Line: 508-946-2800.

Mark Stinson is the Circuit Rider for the Western Regional Office. Mark holds a Bachelor of Science degree from the Massachusetts Maritime Academy and has also taken Masters-level courses in Forestry Management at the University of Massachusetts in Amherst. He has over 13 years of experience at the conservation commission level as a commissioner, chair and agent for a Western Massachusetts community. Mark can be reached at 413-755-2257 or