Located in the beautiful Columbia River Gorge, Proef strives to find strategic and cost-effective solutions to clients’ environmental challenges.

Areas of expertise include hazardous waste management, environmental assessment and remediation, environmental compliance, process safety and risk management, and strategic environmental management.

 “Sometimes the questions are complicated and the answers are simple.”

– Theodor Seuss Geisel

Renée van de Griend, PhD, PE

Principal/Owner

With more than 25 years of environmental consulting experience, Renée has developed a reputation for high-level technical and regulatory expertise and a straightforward and concise style of communication.

Ph.D. Chemical Engineering, University of California, Berkeley
B.S. Chemical Engineering, University of South Carolina

Registered Professional Chemical Engineer