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Our People
Personnel Summaries
Leonard C. Slosky, R.E.A., P.E.S.

Leonard Slosky is an environmental scientist with over 30 years of experience. He is an active member of the ASTM committee that developed the 2005 ASTM Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process. Mr. Slosky is a Professional Environmental Scientist (Colorado) and a Registered Environmental Assessor (California).

Prior to founding Slosky & Company in 1985, Leonard Slosky was Assistant to the Governor of Colorado for Science, Technology, and Environmental Policy. He was a staff director in the Office of Science and Technology Policy, Executive Office of the President (White House) and served on an interagency committee of the National Security Council. He has testified before committees of the U.S. Congress eight times concerning environmental and waste management issues. Mr. Slosky provided leadership and expertise in low-level radioactive waste management on a committee of the National Academy of Sciences. In recognition of his policy contributions, the U.S. Secretary of Energy appointed Mr. Slosky to the Waste Isolation Pilot Plant Blue Ribbon Panel. He was the co-chair of the Denver Metro Chamber of Commerce’s Environment Committee.

Currently, Mr. Slosky offers his expertise in the transformation and redevelopment of contaminated properties to risk-adverse financial institutions, real estate developers, and law firms.


Andre Gonzalez, C.I.H.

Andre Gonzalez has over 25 years of experience in industrial hygiene, safety, and environmental remediation. He is certified in the comprehensive practice of industrial hygiene. His areas of expertise include asbestos and lead identification and management; beryllium compliance; indoor air quality; air contaminant sampling and interpretation of analytical results; construction and demolition safety, hazardous waste cleanup; employee training (confined space entry, hazard communication, etc.); health and safety plan preparation and implementation.