Justin Mendinsky Named Assistant Vice President of Water/Wastewater Services
We’re please to announce that Justin Mendinsky has been promoted to assistant vice president, overseeing the firm’s water & wastewater service group. The position was created as part of an ongoing organizational realignment to scale the firm for growth while preserving its commitment to technical excellence and personalized service. The realignment creates unique channels for client outreach, technical expertise, and operational delivery, ensuring each gets proper focus and attention.
Justin’s position is part of the channel focused on technical expertise. As such, he will be responsible for driving quality and consistency in project delivery across the organization by ensuring best practices are implemented across all water and wastewater teams and ensuring staff members get the training they need to meet evolving industry standards. He will also foster a collaborative, results-driven culture in the water and wastewater division.
Justin previously managed the water & wastewater team in HRG’s Harrisburg office and has more than 20 years of experience with the firm. He is active in the water and wastewater industry, serving in various leadership roles with the Central Pennsylvania Water Quality Association and Pennsylvania Water Environment Association over the years. In addition, he serves the community as a member of Carlisle High School’s Occupational Advisory Committee, ensuring engineering coursework reflects the skills students need to join the workforce and sharing work experience with the students in the classroom.
Mentorship is a key aspect of the assistant vice president position, according to Erin Threet, HRG’s vice president of services, and Justin excels in that role. She says, “Justin has been a mentor and friend to me since my first day at HRG, providing an impressive knowledge of how to bring projects to fruition. This includes some of HRG’s most complex and innovative projects over the past 20 years. He is quick to help any member of the team and works harder than almost anyone I know. I can’t imagine anyone better to lead and inspire the water and wastewater team.”

Adrienne Vicari is being promoted to vice president of growth, a new position that drives new client development across the organization.
“To achieve our growth goals, we need to anticipate and offer the services our clients will need most in the coming years. Yet, even as we expand our service offerings, we must continue to deliver our services with the same quality, creativity, and attention to detail that our clients have always relied on,” Chief Operations Officer Ed Ellinger says. “Our technical service experts will determine what services we offer and the quality standards for delivery. Jim will work with the operations leaders in each office to build capacity for those service offerings at the local level so that we can deliver projects to our high-quality standards while maximizing efficiency and operational excellence.”
Feath has managed operations for HRG’s Pittsburgh office since 2018 and has more than 25 years of experience with the firm. He began his tenure with HRG as an intern shortly after the Pittsburgh office opened and has played a key role in its growth over the past two decades. During that time, he amassed experience as a designer and project manager before taking a leadership role in regional operations. He is a registered landscape architect with vast expertise in site planning and development, particularly in the areas of parks and recreational facilities, trails, and public spaces. He is active in the industry as a member of the American Society of Landscape Architects and Pennsylvania Recreation & Park Society, but he is also actively engaged in the local community in Pittsburgh as a board member with the Butler County Chamber of Commerce and a member of the Cranberry Township Environmental Advisory Committee. His vast experience with HRG and knowledge of regional operations make him ideally suited for this role as vice president of operations.