Sterling Professional Team

STERLING’s experienced Environmental Engineers undertake Phase I and II environmental site assessments, stormwater pollution prevention plans, underground storage tank closures, spills response, construction inspections and environmental sampling/monitoring.

STERLING’s staff perform site investigations, develop remedial programs and oversee construction activity routinely addressing contaminated soil, groundwater, and surface water. Staff are also experienced in performing soil-vapor intrusion and explosive gas surveys, litigation support, and managing the State Environmental Quality Review (SEQR) process.

In addition, STERLING has in-house experience and capabilities in design and drafting with CAD Programs such as AutoCAD Civil 3D, HydroCAD, and ESRI ArcGIS Pro.

Andrew M. Millspaugh, P.E.

President

Andrew is a licensed Professional Engineer in the States of New York, Wisconsin, and Minnesota, with experience in the fields of environmental consulting, including site investigations, permitting and compliance, remediation design and specification, field engineering, construction oversight, field sampling methods, sediment management, in situ solidification/stabilization, and project quality assurance. Andrew has a Bachelor’s Degree in Environmental Engineer from the University of Delaware and a Master of Science Degree in Civil/Environmental Engineering from the University of Wisconsin – Madison.

Mark P. Millspaugh, P.E.

Vice President

Mark is a licensed Professional Engineer in the States of New York, Vermont, Pennsylvania and New Hampshire, with experience in the fields of solid and hazardous waste management, remediation and redevelopment, environmental compliance and permitting, covering land, water and air resources. He is well versed with the State Environmental Quality Review Act (SEQRA) and associated environmental impact studies. Mark has a Bachelor and Master of Science Degree in Environmental Engineering from Rensselaer Polytechnic Institute.

Thomas M. Johnson

Senior Hydrogeologist

Tom is a Certified Professional Geologist by the American Institute of Professional Geologists and is former President of the Hudson Mohawk Professional Geologist’s Association. He has experience focused on geology, hydrogeology and environmental restoration serving industrial, commercial, mining, water supply, energy and property acquisition sector clients. His expertise includes client and regulatory liaison, project planning and management, data collection and analysis, site characterization, regulatory negotiation, permitting, litigation support and expert testimony. Tom has a Bachelor of Science Degree in Geology from the SUNY Cortland and a Master of Science Degree in Geology, SUNY in Fredonia.

Beverly A. Commerford

Operations Manager

Beverly is experienced in the management of STERLING’s overall operations, with a focus on both project execution and business administration. She oversees project coordination, including task management, scheduling, and quality control of deliverables, and ensures timely submittals to clients and agencies. Her role also includes supporting client relations and managing key administrative functions such as payroll, client invoicing, accounts receivable, and accounts payable. As a licensed Notary Public, she provides notarization services as needed, supporting the company's compliance and operational integrity.

Jennifer C. DiCerbo

Senior Environmental Engineer

Jenn is an Environmental Engineer with experience in site investigation and remediation, environmental permitting, environmental impact assessment, monitoring, construction oversight, environmental litigation. Jenn has a Bachelor of Science in Civil Engineering from Union College and a Master of Science Degree in Environmental Engineering from Rensselaer Polytechnic Institute.

Tyler A. Sweet

Environmental Engineer, Project Manager

Tyler is an Environmental Engineer with experience in site development layout, grading, and utility design, geosynthetic design, stormwater design and planning, and construction project management. His primary responsibilities are project management and the preparation of detailed design drawings and specifications, preparing permit documents, providing construction oversight, and performing supporting field investigations. Tyler has a Bachelors Degree in Environmental Engineering from the University at Buffalo.

Amanda M. Castignetti

Environmental Engineer

Amanda is an Environmental Engineer with experience in environmental sampling, construction oversight, permitting and compliance, preparing environmental monitoring reports. Her primary responsibilities include permitting and compliance related to solid waste management facilities, construction and industrial stormwater, petroleum bulk storage and SPCC Plans, and SEQRA environmental impact assessments. Amanda has a Bachelors Degree in Environmental Engineering from Rensselaer Polytechnic Institute.

Paul W. Scholar, PG

Senior Geologist

Paul is a licensed Professional Geologist in New York with experience in site characterization, remedial investigation, hydrogeologic investigation, and Geographic Information Systems (GIS). He has managed, geologic explorations, water supply pump tests, subsurface investigations, petroleum spill responses, and routine groundwater monitoring events. His responsibilities include project management, field sampling, drilling and construction oversight, data interpretation, GIS drawing production, and report preparation. Paul has a Bachelors Degree in Geology from Clarion University and a Masters Degree in Geological Sciences from Case Western Reserve University.

Brian T. Chew

Environmental Engineer

Brian Chew is an Environmental Engineer specializing in commercial, industrial, and residential site design, public water systems, stormwater management systems, construction stormwater management, environmental sampling, and construction oversight to support both client permitting and compliance. Brian has a Bachelors Degree in Environmental Engineering from Clarkson University

Christina M. Bell

Environmental Scientist

Christina is an Environmental Scientist with experience with field sampling, Stormwater Pollution Prevention Plan (SWPPP) Inspections, Wetland Delineations, and Geographic Information Services (GIS). Christina also manages STERLING's social media presence. Christina has a Bachelors Degree in Environmental Studies from Siena College.

Sean M. St. Lucia

Staff Engineer

Sean is a Staff Engineer with experience in CAD drawing preparation, field sampling, construction oversight, and report writing. Sean has a Bachelors Degree in Mechanical Engineering and a Masters of Business Administration from SUNY New Paltz.

Jadyn B. Baidoo-Davis

Staff Engineer

Jadyn is a Staff Engineer with experience in CAD drawing preparation. Jadyn has a Bachelors Degree in Environmental Engineering from Rensselaer Polytechnic Institute.

Catherine J. Contompasis

Administrative Assistant

Ms. Contompasis has 15 years of experience in helping to manage STERLING’s operations. She assists in a variety of duties including the onboarding of staff, administrative tasks, scheduling, and the maintenance of our facility. She ensures the smooth operation and organization of our office.