We’re Here For You
We’ve assembled a staff of highly-qualified environmental, business, and project management professionals to best serve you.
Click on a team member’s name for their bio and contact information.
James Spangler, II, CEI, A.M.ASCE, President
James Spangler has 25+ years of experience in land planning/entitlement, environmental and water resources management, and environmental consulting. As founder and Principal of SEI, Jim is responsible for corporate management of multidisciplinary environmental, land planning and engineering project teams, clients, sub-consultants, laboratories, and external business development. He controls all budgets, personnel management, and administration of the company, directly supervising professionals and other staff.
Jim is a qualified expert in federal, state, and local law jurisdictions in the areas of wetlands delineation and permitting, environmental assessment, water resources management, protected species assessment, sediment and erosion control, land planning, environmental impact of highway construction, coastal environmental assessment, and Coastal Area Management Act (NC), and other subject matter.
Jim serves as the lead consultant on all litigation support and negotiated settlement support matters. He is responsible for forensic investigation design, expert testimony, leading settlement negotiations related to environmental issues, and providing consultation to attorneys relative to land and water resources and development. He has been admitted and qualified as an expert in multiple Federal Court jurisdictions (WD & ED-NC, ND-VA), State’s Offices of Administrative Hearings (NC and VA), Superior Courts in multiple jurisdictions (NC, VA, MD, and SC), and has begun training in pursuit of his trial court and family financial mediator certifications.
Jim is responsible for technical project scoping, business contract negotiation, project management, and technical quality assurance. He has performed field studies of wetlands, streams, hydrology, and sediment/erosion control since 1987, and continues to manage projects in the field.
Mr. Spangler is a Certified Environmental Inspector, and an Associate Member of the American Society of Civil Engineers. He has Asbestos Inspector training, NC Stream Origin (buffer) training, and holds licenses to collect protected aquatic species.
Robin Smoot, Business Operations Manager
Robin Smoot joined Spangler Environmental in 2019. As our Business Operations Manager, Robin’s primary responsibilities including overseeing the company’s Accounting, Human Resources, Marketing, and Operations functions. She also supports the President with corporate planning and strategy. Robin’s prior experience includes 10 years as owner and Principal of an operations consulting firm. Her corporate experience includes roles ranging from business administrator to Director of Operations.
Robin is passionate about small business and is committed to ensuring both internal and external clients enjoy an efficient and excellent customer experience. She holds a Bachelor’s in Public Administration from Miami University (OH). She also earned her Master’s of Business Administration with a minor in Entrepreneurship. An Ohio native, Robin enjoys spending time with her family, trips to the beach and rooting for the Ohio State Buckeyes.
Business Operations Manager
Cal Reider, Project Manager and Environmental Scientist
Cal Reider is our Project Manager and Environmental Scientist. Cal joined Spangler Environmental in 2010, making him the longest-tenured team member, second only to the President. Throughout his tenure, Cal has enjoyed a progressive career in terms of both technical expertise and leadership responsibilities. He serves our clients through Environmental Due Diligence services and customer-centric Project Management.
Cal’s prior experience includes 9 ½ years as a Geologic Technician for Ed Aguirre & Associates. He holds a HAZWOPER certification and is pursuing Project Management certification. Cal enjoys the environmental nature of his job, but also values meeting and engaging with our clients and vendors. Cal loves spending time with his wife and son, and is a fanatic for the Carolina Panthers and Carolina Hurricanes.
Project Operations Manager
Mariane Grubbs, Environmental & Operations Technician
Mariane Grubbs is an Environmental & Operations Technician with Spangler Environmental. Mariane joined the SEI team in 2018 and now leads our Risk Management Group. Her primary responsibilities include performing Phase I Environmental Site Assessments, Property Condition Assessments, and Cultural Resources Memos. Mariane’s prior experience includes consulting work for the Community Energy Plan of Arlington County, Virginia and roles in office and purchasing management.
Mariane holds a Bachelor’s degree in Environmental Science with a double minor in Biology and Geography from UNC Chapel Hill. She is currently pursuing her Master’s in Natural Resources & Sustainability from Virginia Tech as well as Environmental Professional (EP) certification. Mariane enjoys horseback riding and volleyball.
Environmental Project Manager
Maria Polizzi, Environmental Scientist
Maria Polizzi joined Spangler Environmental in 2018 as an Environmental Scientist. She leads the Land and Water Resources Group and is responsible for NPDES inspections, Sediment & Erosion Control services, and managing on-site contractors on behalf of our clients. Maria’s prior experience as a Research Assistant and Teaching assistant for NCSU’s Crop & Soil Sciences department. She holds Levels 1, 2, and 3 NCDOT Erosion Control Certifications, HAZWOPER certification, and is an Associate Professional Soil Scientist.
Maria is passionate about protecting, preserving and restoring our environment as well as professional and personal growth. She holds a Bachelor of Science in Environmental Technology & Management and a Master’s in Soil Science, both from North Carolina State University. Maria is an avid hiker who also enjoys diving and photography.
Environmental Project Manager
David Vail, Environmental Scientist
David Vail joined SEI in 2017 as an Environmental Scientist. As part of the Risk Management Group, David serves clients through Phase I & II Environmental Site Assessments and Property Condition Assessments. He also provides oversight and technical assistance for the installation of remediation systems and site remediation projects. David brings a solid environmental background to SEI, with prior experience in ESAs and Construction Materials Testing. He holds a B.S. in Biology with a concentration in Ecology, Conservation & Environmental Biology, graduating cum laude. He also holds HAZWOPER certification.
David is passionate about preserving the quality environment for the good of future generations. An avid outdoorsman, he enjoys hiking and camping with his wife and dog, along with fly fishing, hunting and woodworking.
Courtney Watts, Environmental Technician
Courtney Watts joined Spangler Environmental in 2019 as an Environmental Technician. As part of the Risk Management Group, Courtney assists with research, data gathering, and technical writing for Phase I Environmental Site Assessments and Property Condition Assessments. Courtney’s background includes both field and technological skill sets, and she is adept at researching and interpreting flood, topographic, geologic, and soil maps. Courtney received her Bachelor’s degree in Environmental Science from Appalachian State University. She is committed to protecting the environment and human health of future generations. In her spare time, Courtney enjoys rock-hounding, hiking, archery, and canoeing.
Luke Miles, Environmental Technician
Luke Miles joined Spangler Environmental as an Environmental Technician in 2019. As a member of our Risk Management and Land & Water Resources teams, Luke provides field and technical services in support of client projects. His primary responsibilities include assisting with NPDES inspections, providing sediment and erosion control support, conducting wetland delineations, performing threatened and endangered species site assessments, and assisting with Phase I Environmental Site Assessments. Luke earned a Bachelor of Science in Geoenvironmental Studies from Shippenburg University where he also minored in Biology. In his spare time, Luke enjoys hiking, camping, kayaking, and creating art and music.
Erin Van Dyke, Office Administrator
Erin Van Dyke joined Spangler Environmental in 2019. As the Office Administrator, Erin serves as the hub of the company for employees, clients, and guests alike. Her primary responsibilities include office management, fleet maintenance, vendor management, and bookkeeping. She also provides administrative support to our management and project teams. Erin’s holds a Bachelor of Arts degree in history from Belmont Abbey College. Her prior experience includes human resources coordination, accounting, and sales support. In her spare time, Erin enjoys reading and listening to podcasts of various topics.