National Experts

SCS professionals are active in, and leaders of industry and professional associations. We organize and participate in workshops and conferences, author and present technical papers, conduct research, and participate in national and state-level legislative and rule-making processes and regulatory policy. Our engineers, environmental consultants, and scientists work in close coordination on environmental solutions.

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Christina Helms, PG, LSRP, is one of our National Experts on Mining. She is also responsible for leading, growing, and managing SCS’s environmental services practice in the greater Pennsylvania, New Jersey, and Maryland area. She had nearly two decades of technical and environmental consulting experience as a geologist, project manager, senior technical advisor, and Licensed Site Remediation Professional (LSRP) on various national, regional, and local environmental projects for private sector clients in various markets including commercial real estate, residential housing, industrial/manufacturing, mining, and energy utilities. Project experience ranges from fast-paced due diligence for property transactions to long-term, multi-year projects with ongoing monitoring and reporting needs and requirements for sites with soil, groundwater, and air impacts.

    • Christina Helms, PG, LSRP, is one of our National Experts on Mining. She is also responsible for leading, growing, and managing SCS’s environmental services practice in the greater Pennsylvania, New Jersey, and Maryland area. She had nearly two decades of technical and environmental consulting experience as a geologist, project manager, senior technical advisor, and Licensed Site Remediation Professional (LSRP) on various national, regional, and local environmental projects for private sector clients in various markets including commercial real estate, residential housing, industrial/manufacturing, mining, and energy utilities. Project experience ranges from fast-paced due diligence for property transactions to long-term, multi-year projects with ongoing monitoring and reporting needs and requirements for sites with soil, groundwater, and air impacts.

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Jay Hatho is a Senior Vice President of SCS Engineers, our Technology Officer/Chief Information Officer, and our National Expert on Technology Services. He is responsible for developing new technologies that collect, monitor and control systems in the field. He has developed and deployed new hardware and software not previously utilized in the environmental engineering field. These new technologies help to reduce the costs of running and operating engineering projects, and are now sold as a product to clients. This helped launch a product development organization at SCS known as SCS eTools.

    • Jay Hatho is a Senior Vice President of SCS Engineers, our Technology Officer/Chief Information Officer, and our National Expert on Technology Services. He is responsible for developing new technologies that collect, monitor and control systems in the field. He has developed and deployed new hardware and software not previously utilized in the environmental engineering field. These new technologies help to reduce the costs of running and operating engineering projects, and are now sold as a product to clients. This helped launch a product development organization at SCS known as SCS eTools.
      Jay has leveraged hardware, software, and wireless technology to streamline the operations, maintenance, and monitoring of data that is collected at landfills. Landfills and landfill gas in particular, along with other industries must comply with government regulations. Collecting, storing and analyzing compliance data is expensive because traditionally it was time consuming and sometimes dangerous to collect. SCS Technology developed a secure and user-friendly web-based application to identify, collect, track, and report in real-time the data required to meet compliance regulations. The components work wirelessly and are built to last even under extreme weather conditions.
      Mr. Hatho also oversees the modernization and standardization of SCS’s IT organization to support the company’s growth. He is responsible for deploying modern technologies to help improve communication throughout the company and for leading the development of software products both internally and for clients.
      Prior to joining SCS, Mr. Hatho developed technology platforms and infrastructure for a major online brokerage firm, and served as the director of engineering for a major computer manufacturer. He started large organizations overseas and locally that improved business and helped increase revenues for several companies, and managed multi-million dollar engineering budgets while maintaining strict fiscal controls and disciplines.
      Contact Jay at 562-426-9544 or

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Mark Huber, PE, is a Vice President and a National Expert on Electric Utilities. He has nearly 30 years of consulting experience in civil and environmental engineering, and specializes in urban redevelopment projects with a technical expertise in brownfield redevelopment, civil site design, and stormwater management. He is a licensed Professional Engineer in Wisconsin and Iowa.

    • Mr. Huber is a Vice President and a National Expert on Electric Utilities. He has nearly 30 years of consulting experience in civil and environmental engineering, and specializes in urban redevelopment projects with a technical expertise in brownfield redevelopment, civil site design, and stormwater management. He is a licensed Professional Engineer in Wisconsin and Iowa.
      With a dual background in civil and environmental engineering, Mark is able to take urban redevelopment projects from initial site assessment through construction. Mark is adept at explaining complex issues in easy to understand language. His experience working on a variety of complex urban projects allows him to quickly identify key issues and develop smart, simple solutions that save clients time and money. Mark is an excellent communicator, which helps him bridge the gap between client goals and regulatory requirements. Mark is always excited about helping clients in creative ways with responsive customer service.
      Contact Mark at 608-216-7376 or

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Ray Huff, REPA, is a Vice President of SCS Engineers and our National Expert on Greenhouse Gas. He has three decades of experience in environmental consulting, and specializes in landfill regulatory compliance; air quality/compliance issues, including GHG emissions quantification; and site assessment, remediation, and post-closure care. Mr. Huff is an Accredited Lead Verifier under California Air Resources Board (CARB) with Transactions, Oil and Gas Systems, and Process Emissions Specializations, and a Registered Environmental Property Assessor (REPA).

    • Ray Huff, REPA, is a Vice President of SCS Engineers and our National Expert on Greenhouse Gas. He has three decades of experience in environmental consulting, and specializes in landfill regulatory compliance; air quality/compliance issues, including GHG emissions quantification; and site assessment, remediation, and post-closure care. Mr. Huff is an Accredited Lead Verifier under California Air Resources Board (CARB) with Transactions, Oil and Gas Systems, and Process Emissions Specializations, and a Registered Environmental Property Assessor (REPA).
      Mr. Huff is also the Closed Landfill project lead within SCS’s California offices, with project management and coordination responsibilities for closed and inactive landfill projects throughout the state, including landfill probe evaluation work for CalRecycle. He has also participated on the Landfill Gas Technical Advisory Group to CalRecycle.
      Mr. Huff’s compliance expertise has been deployed in a Project Manager and Task Manager capacity on a variety of landfill investigations and risk assessments, hazardous substance site investigations and risk assessments, site remediations, solid waste and hazardous waste management plans, and GHG/air regulatory compliance projects throughout California.
      Contact Ray at 562-426-9544 or

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Stephanie Hill, PG, is a Vice President, Project Director, and our National Expert for Carbon Capture and Sequestration. She is also a leader of our national Carbon Sequestration and Deep Well Injection practice. Stephanie is a hydrogeologist and a licensed Professional Geologist in Florida, Texas, Illinois, and Kentucky. She co-leads a team of geologists and engineers to advise clients of various industries on geologic storage options for carbon neutrality and disposal of industrial liquid residuals. Her experience includes permitting and regulatory compliance for underground injection control and coal mining, hydrologic investigations, and identifying large scale environmental impacts to surface and groundwater resources from various industry practices.

    • Stephanie Hill, PG, is a Vice President, Project Director, and our National Expert for Carbon Capture and Sequestration. She is also a leader of our national Carbon Sequestration and Deep Well Injection practice. Stephanie is a hydrogeologist and a licensed Professional Geologist in Florida, Texas, Illinois, and Kentucky. She co-leads a team of geologists and engineers to advise clients of various industries on geologic storage options for carbon neutrality and disposal of industrial liquid residuals. Her experience includes permitting and regulatory compliance for underground injection control and coal mining, hydrologic investigations, and identifying large scale environmental impacts to surface and groundwater resources from various industry practices.
      Ms. Hill’s early career focused on environmental compliance for mineral and fossil fuel industries at the Texas Commission on Environmental Quality (1996 to 2000) and the Railroad Commission of Texas (2000 to 2012).
      She earned a BS in Geosciences with emphasis in hydrogeology and geomorphology at the University of Texas.
      Contact Stephanie at (618) 444-0307 or

      See Full Resume