Every project is a joint project between partners, us and our client.
Our Team
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Ben Langenfeld, P.E. —
Partner/Principal Consultant
Mr. Langenfeld is a partner of Greg Lewicki and Associates with more than 15 years of experience as a principal consultant in the mining and environmental industry. Ben’s leadership and industry knowledge provides our clients with solutions to difficult mining and environmental issues.
Ben has developed many mineral exploration, mining, and reclamation plans for mines in the State of Colorado. His extensive project history with federal, state, county and municipal permitting for metal mining, coal mining and oil/gas drilling has led him to learn exactly what is necessary for mines to be compliant, successful, and easily permitted. His design experience includes sediment generation monitoring and reduction designs; complete mine designs (from mine layout, to operations design, to reclamation plans); ventilation system designs; and coal mine pillar designs.
Ben works with clients to create problem-solving strategies that address issues that have or can potentially arise at a particular site. He has experience conducting slope stability and hydrological erosion analysis; water quality analysis and discharge compliance planning; environmental compliance analysis; environmental impact mitigation planning; ground water hydrological and geochemical analysis; and environmental control plan evaluation and quality control.
Through his ability to translate complex technical issues, Ben has a successful history negotiating with neighbors and public officials on major development projects. His ability to present complex engineering scenarios with clear and concise language has proven highly effective in bringing diverse stakeholders together and achieving win-win solutions.
Contact —
Education and Certification —
E-Mail: Benl@lewicki.biz
Phone: (720) 842-5321
FAX: (303) 346 6934
B.S. Mining Engineering, Colorado School of Mines, Golden, CO
Professional Engineer, State of Colorado, No. 0047151
FAA Remote Pilot License
Ben Miller, Ph.D. —
Partner/Principal Consultant
Partner and principal consultant of Greg Lewicki and Associates, Mr. Miller has over 20 years of mining experience in all aspects of mining operations, planning, and environmental compliance. After working on projects for globally dominant international companies to small private businesses, he has overseen all phases of mineral extraction projects from initial conception through full production. His technical, management, operations, and finance background provides our clients with products backed by a multidisciplinary mindset.
Ben has developed many mineral exploration programs, mine designs, and reclamation plans. He has an extensive history of permitting work for construction materials, industrial minerals, metal mines, coal mines, exploration, reclamation, and oil & gas projects. Ben also has hands-on experience operating aggregate and metal mines in Colorado and Australia. When it comes to engineering and design, Ben has a strong reputation for successful life-of-mine planning, long and short-term scheduling, lean production, theory of constraints, control system design, and research & development. Mr. Miller has handled numerous mine compliance matters, including: air, water, and visual impact mitigation, U.S. Army Corps of Engineers permits, BLM contracts, SPCC, NPDES, and others.
Ben also has a passion for autonomous mining systems. He has helped provide technical engineering support services across three continents to strengthen their autonomous mining systems deployment process. By studying and analyzing the impacts of autonomous haulage systems and autonomous drilling, Ben is at the forefront of providing autonomous solutions in the mining industry.
Education & Certification —
Ph.D. Mining Engineering, Colorado School of Mines, Golden, CO
M.Ec. Mining Engineering, Colorado School of Mines, Golden, CO
M.Sc. Systems Engineering, Colorado School of Mines, Golden, CO
B.A. Physics, Carleton College, Northfield, MN
Western Australia Quarry Managers Certificate of Competency
MSHA Experienced Underground & Surface Miner
Contact —
Email: Ben@lewicki.biz | LinkedIn
Phone: (720) 842-5321
FAX: (303)-346-6934
Katie Todt, P.G. —
Senior Consultant
Our geologist and senior consultant at Greg Lewicki and Associates, Ms. Todt, has a diverse set of mining, environmental, and general contracting experience. Backed by her strong work ethic and analytical skills, Katie provides expert support to our clients.
Katie’s strength is her geology work. She excels with geologic mapping of economic and industrial mineral resources and dimension stone quality grading; geologic mapping with respect to surface and underground mine planning and design; geologic mapping with respect to fracture frequency and orientation; rock sampling and testing; and monitoring fracture fluctuations. Her geoscience work provides our team with a deeper understanding when it comes to identifying and solving geologic solutions for our clients.
Katie is experienced with mine directed permitting including DRMS, CDPHE DWR, CDPHE WQCD, CDPHE AQCD, BLM, USACE, and various counties throughout Colorado. She is also well practiced in preparing site wide plans and programs such as SWMP, SPCC, ESA, NPDES, and other documents required to operate a successful mine or quarry in the State of Colorado. Katie has an environmental background with water rights usage and conversion; augmentation; hydrological monitoring of stream flow & potential mining contaminants; and surface water control and isolation from the surrounding environment.
Education & Certification —
M.S. Geosciences, Idaho State University, Pocatello, ID
B.S. Geosciences, Trinity University, San Antonio, TX
Colorado Professional Geologist
MSHA Experienced Underground & Surface Miner
Contact —
Email: Katie@lewicki.biz
Phone: (720) 842-5321
FAX: (303) 346 6934