Bringing Structure and Confidence to Hospital Environmental Compliance
Hospitals operate like small cities. On any given day, they manage hazardous waste and pharmaceutical waste, generator air permitting, wastewater considerations, chemical storage, oil management, and emergency reporting. All of this happens while supporting patient care around the clock. At ONE Environmental Group, we help hospital systems bring structure, consistency, and confidence to environmental compliance […]
Kailee Herzer
Environmental Consultant Kailee Herzer brings focus, curiosity and a steady hand to ONE Environmental Group’s Charlotte office, where she works as an Environmental Consultant supporting a wide range of compliance and field-based projects. Since joining the firm, Kailee has quickly grown from intern to full-time team member, building experience across environmental compliance, groundwater sampling, and […]
Jenna Mayfield
GIS Analyst Jenna Mayfield joined ONE Environmental Group in August 2025, bringing with her a rare blend of technical skill, creative perspective and genuine enthusiasm for geospatial problem-solving. Today, she serves as a GIS Analyst based out of ONE’s Charlotte office, applying her deep knowledge of mapping, data visualization and environmental science to support clients […]
Evan Smith-Rooks
Environmental Consultant Evan Smith-Rooks joined ONE Environmental Group in August 2025, stepping into a satellite role connected to the Atlanta office. Living in Cumming, Georgia — just an hour north of his birthplace of Atlanta — he brings regional familiarity and a strong academic foundation to his work across the Southeast. Evan graduated from Oberlin […]
Karen Sewell
Project Coordinator Karen Sewell is a dedicated Project Coordinator at ONE Environmental Group whose warmth, work ethic, and three decades of administrative and accounting experience make her an invaluable member of the team. Karen joined ONE in July 2025, assigned to the Midlothian office and she also supports ONE leadership in the Tidewater region, offering […]
Brian Winkler
Senior Project Manager When Senior Project Manager Brian Winkler, P.E., joined ONE Environmental Group in September 2025, he brought with him more than 20 years of experience in the environmental industry supporting engineering, project management and client development – along with a passion for family, community and problem solving. Based in Warrington, Pennsylvania, Brian is […]