Dan Mahlum, PE
Corporate Treasurer

As RH2’s Treasurer and head of RH2’s Treatment Group, Dan provides leadership and insight grounded in nearly three decades of hands-on engineering experience. Over the past 27 years, Dan has helped expand RH2’s capabilities in water and wastewater treatment, overseeing complex, cutting-edge facility projects including well development, groundwater and surface water treatment, and wastewater planning and improvements.
Dan is actively involved in the planning and execution of projects, from preliminary design to construction and startup/testing services. His expert understanding of how design decisions affect long-term operations, and maintenance allows him to develop solutions that support both project success and client needs well beyond construction.
Dan brings practical perspective and strategic thinking to RH2’s financial planning and business operations. His awareness of market trends and client priorities makes him a valuable voice in shaping RH2’s future.
