Meet Our Team
Meet the team of project managers, scientists, and specialists who bring their technical expertise and attention to each project.

Noelle Bennese
Environmental Scientist I

Lindsay Benko
Soil Scientist I

Kathleen Bertoldi, EIT
Wastewater & Residual Scientist II

Robin C. Brandt, Ph.D., PE
Vice President, Shareholder

Lisa Challenger
Senior Environmental Scientist, Shareholder

Nickolas Hines
Environmental Scientist I

Trudy Johnston
Managing Director, Certified Operator, Shareholder

Thomas J. Krall
Senior Soil Scientist

Michelle McCall
CEO

Christine McLain, PMP
Data Specialist II

Jade Triton
Controller

Wade Yankey
Acting Senior Wastewater & Residual Scientist, Certified Operator
Affiliations With Professional Organizations

The Water Environment Federation

Mid-Atlantic Biosolids Association

Pennsylvania Water Environment Association

Solid Waste Association of North America

American Water Works Association

The Central Pennsylvania Water Quality Association

Eastern Pennsylvania Water Pollution Control Operators Association

The Chesapeake Water Environment Association

California Association of Sanitation Agencies
WBE Certifications
Material Matters is a Woman-Owned Business Enterprise (WBE) certified with several agencies, including the agencies listed below.

The Women’s Business Enterprise National Council

Maryland’s Office of Minority Business Enterprise

Office of Historically Underutilized Businesses (NC)

Division of Minority and Women’s Business Development (NY)

Division of Minority and Women’s Business Development (NYC)

Pennsylvania Unified Certification Program