

Founded in 1980 by Carlos Herrera during a graduate
school water supply project for Seattle Water Department.
Grew from municipal water
quality work into a cross
disciplinary environmental consultancy with engineers, scientists, and planners.
Expanded regionally with offices in Portland, Missoula, Olympia, Bellingham, Davis, and Casper.
Employee
owned via ESOP since 2005, transitioning leadership to staff
led practice directors.
Provides stormwater design, watershed and floodplain management, coastal restoration, waste and materials management.
Serves municipalities, government agencies, tribes, utilities, non
profits and businesses across the western U.S. and beyond.
Typically delivers scientifically defensible, cost
effective solutions for complex environmental issues.
Notable for integrating environmental, cultural and economic values across restoration and sustainable development projects.
We are a dedicated, enthusiastic, and solutions
driven team committed to the highest standards of service.
We are committed to environmental stewardship, ensuring that our work benefits the communities we serve.
We work with integrity, respect, and transparency in all of our relationships.
We take pride in our work and are driven by a strong sense of accountability to our clients and communities.
We encourage continuous professional growth and maintain a supportive, inclusive work environment.
Dedicated to helping clients protect, restore, and sustain the environment.
Assist clients in meeting regulatory compliance and achieving environmental stewardship through services.
Focus on site remediation, environmental assessments, and sustainable development practices.
Implements green practices in internal operations, including energy efficiency, waste reduction, and responsible resource use.