Education | Engineering | Hospitals | Commercial



Peter Hogan
President/General Manager

As general operations manager, Mr. Hogan is responsible for the financial management, business development, quality assurance, and project management at Kleen Environmental. Mr. Hogan has a B.S. in Mechanical Engineering from University of Santa Clara. He has 20 years experience within the northwest's environmental industry.


Darin Perrollaz
Senior Project Manager

Mr. Perrollaz designs and implements physical/chemical profiles for designating hazardous wastes. Mr. Perrollaz specializes in developing comprehensive lab-packing and waste tracking programs for universities, medical laboratories, hospital pharmacies, and various research institutes. Mr. Perrollaz has a B.S. in Fisheries and Wildlife from Lake Superior State University in Michigan and a B.s. in Chemistry from the University of Washington. Mr. Perrollaz has 17 years of industry experience. Prior to founding Kleen Environmental, Mr. Perrollaz obtained five years of industry experience in the capacity of 'Director of Environmental Services' and 'Manager of Corporate Health and Safety Policies.'

Professional Certificates Include:
 OSHA/WISHA 40/80 hour HAZWOPER
 OSHA Permit-Required Confined Space Entrant, Attendant and Authorizing Supervisor
 Registered Site Assessor; WA, OR, ID
 WA Board of Pharmacy Licensed
 DOT/IATA Packaging Specialist


Nathan Henson
Project Manager / Field Chemist

Mr. Henson specializes in all aspects of hazardous waste, including identification, handling, transportation and disposal under RCRA, TSCA and DOT regulations. His educational background includes experience in environmental compliance regulations, calculation methods, environmental biology, chemistry and toxicology. Mr. Henson has a B.S. in Chemistry from the College of Idaho.

Professional Certificates Include:
 OSHA/WISHA 40/80 hour HAZWOPER
 OSHA Permit-Required Confined Space Entrant, Attendant and Authorizing Supervisor
 ICC Certified - Underground Storage Tank Decommissioner
 First Aid/CPR Certified
 AHERA Asbestos Building Inspector
 :TSCA Asbestos Management Planner
 DOT/IATA Packaging Specialist


Micheal Parsons
HazTech II

Mr. Parsons participates in general field activities at the direction of project managers, assists with the selection of Personal Protective Equipment in conjunction with the safety officer. He directs on-site physical activities and maintains mechanical equipment. Mr. Parsons has 1 year of experience within the hazardous waste industry.

Professional Certificates Include:
 OSHA/WISHA 40/80 hour HAZWOPER
 Class C Commercial Driver's License with HAZMAT endorsement


Joseph Hogan
HazTech II

Mr. Hogan participates in general field activities at the direction of project managers and assists with the selection of Personal Protective Equipment in conjunction with the safety officer. He directs on-site physical activities and maintains mechanical equipment. Mr. Hogan has a B.A. in Economics from Western Washington University.

Professional Certificates Include:
 OSHA/WISHA 40/80 hour HAZWOPER


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