Staff
Our Code of Conduct is driven by the following principles:
  • Satisfied clients make for good business
  • Satisfied clients can be obtained through the service of competent, happy professionals, and
  • Competent, happy, professionals get that way with good pay, benefits, and training.

The central value of our operation, for the present and the future, is to focus on keeping our clients liability free at a fair cost. We believe that employee performance and improvement is possible through continuous training and exposure to new technologies. It is mandatory for each scientist and engineer to complete five to seven hours of continuing education (CE) training each year through specialty courses offered by the US EPA, Indiana Department of Environmental Management or other approved agencies.

Our team strives for excellence through Total Quality Management (TQM). Our procedures, processes, and methods of operation undergo a thorough review by our QA/QC Director on a project-by-project basis.

Our team is comprised of qualified professionals who bring years of experience and education to each project. Click on the names below for a summary of that individual's experience and qualifications:

Emma Sirhan, CEM, CEI, President & CFO
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Sammy H. Sirhan, CHMM, REM, Senior Project Manager
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Lisa E. Doan, M.Sc., Senior Project Geologist
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Kevin L. Whetham, PE, Senior Project Engineer
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Jack Yan, Ph.D., PE, Senior Project Engineer
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Jerry H. Mohajeri, PE, Senior Project Engineer

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R. Scott Liggett, M.P.A., Senior Project Manager
Health and Safety Officer

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