Quitterie Cotten
Quitterie leads complex infrastructure programs that integrate environmental stewardship, regulatory compliance, and long-term operational performance, drawing on 28 years of experience in wastewater treatment, conveyance design, water supply, biosolids and effluent reuse.
Based in Portland, Oregon, she brings a powerful combination of technical expertise and strategic leadership to every engagement — from planning biosolids reuse programs to managing half-billion-dollar treatment expansions. Her work consistently aligns infrastructure investment with regulatory certainty and system reliability.
Collaboration defines her approach. She builds and leads high-performing multidisciplinary teams, guiding subconsultants, stakeholder engagement efforts and permitting negotiations across federal, state and local agencies. Her ability to navigate complexity while maintaining alignment keeps large programs moving forward through open communication and thoughtful organization.
