About Us


Meet ERC. Here are just a few of the people you may encounter while working with ERC. There are many more who will work together to make your goals come to fruition.

  • Richard L. Middleton


    Rick founded Lancaster Oil Company, now Environmental Recovery Corporation, in 1988. With Rick's oversight the company has grown from a small water/oil recycling center to a full-service environmental corporation with a reputation for superior customer service. Rick's strategic vision for the future continues to drive the company's strong growth.

  • Kenneth D. Lefever


    Ken joined Environmental Recovery Corporation in 2010 with over 8 years of management experience with the second-largest waste company in the U.S. and over 18 years of leading growth-oriented companies. His unique understanding of finance, sales, operations, and technology keeps ERC on the cutting edge of the environmental industry.

  • Peter C. Haiges

    GM of Environmental Services Division

    Pete brings over 10 years of experience in sales and operations management. He brings attention to detail and a clear view of the "big picture” to the forefront of our growing operation. He continually focuses on improving our service to better assist our customers.

  • Bryan Fink

    VP of Operations

    Bryan joined Environmental Recovery Corporation in 2014 with over 15 years of management experience with the second-largest waste company in the U.S. Bryan is result driven, with strong leadership and communication skills and proven ability to improve the operating performance and profitability of a company and implement strategic direction. His attention to operation planning, human resource management, and people development skills keeps ERC on the forefront of the environmental industry.

  • Kevin L. Rohrbach

    VP of Sales & Marketing

    Kevin joined ERC in 2013 with over 10 years of sales, marketing, and management experience with the largest solid waste company in the U.S.  Kevin and his team specialize in residual and solid waste management, landfill diversion, recycling, waste-to-energy, and organics.  Customers know they can depend on Kevin and his team for fast turnarounds, reliable service, and professionalism.


  • R. Michael Mulrine

    Environmental Manager

    Mike came to ERC with 21 solid years in the residual and hazardous waste industries. Mike's depth of knowledge of environmental regulations and his management of our premier DEP-certified lab facility ensures a high standard of accurate testing and treatment of material at ERC.


  • Hannah Fritz

    Health & Safety Manager

    Hannah, a Lancaster native, joined the ERC team in 2013 with a background in Environmental Studies. She worked as an analyst in the DEP certified lab for 3 years before graduating with her Masters of Science in Emergency Management from Millersville University in 2016. Hannah then transitioned into the newly created role of Health & Safety Manager. Her innovative, collaborative approach, and optimistic temperament continually drive ERC to blend commerce, compliance, and education.

  • Kermit L. Burkholder

    Director of R&D

    Kermit came to work for ERC in September of 1989, with his highly recognized skills as a chemist and extensive knowledge of engineering processes. Kermit directs our processing innovations and heads our product development center. In the over 20 years Kermit has been with us, he has provided us with invaluable technology.

  • Mark Rothenberger


    Mark is a certified public accountant and joined ERC in 2017 with 18 years of accounting and finance experience from positions with a large public accounting firm and a $3.5 billion publicly traded company.  His expertise in systems and accounting processes will keep the Company growing and supporting the servicing of our valued customers.