Stormwater & Green Infrastructure

Cascadia helps find and implement solutions to prevent stormwater pollution. From initial research through final program evaluation, we offer comprehensive assistance on litter and trash load reduction, stormwater source control, low impact development, and sustainable landscaping. We will work closely with you to identify key stormwater issues, develop technical and education-based strategies to address these issues, design and implement tailored outreach plans and training programs, and conduct tailored program and project specific evaluations, leading to more effective stormwater management.

We provide expertise and services in:


Stormwater trash load, and marine debris reduction

  • Litter and trash load characterization studies
  • Trash load reduction plans and strategies
Stormwater source control
  • Research and analysis
  • Technical assistance
  • Public outreach and community-based social marketing
  • Program and project planning and evaluation to meet NPDES permit requirements
  • Professional trainings
Low impact development and sustainable landscaping

  • Public education on low-impact development, natural yard care, and pesticide reduction
  • Professional trainings
  • Outreach and public involvement plans, manuals, and outreach materials development
  • Facilitation and community involvement support
  • Program and project evaluation
Meet our experts:
Gwen Vernon
- Stormwater, Green Infrastructure
“Working with Cascadia was excellent from the very beginning to the very end. They kept up with what was going on, they communicated with me when there were problems, and they proposed solutions. Wrapping up the project—I couldn’t believe it. The report was on target.”

-Laurel Andrews, Seattle Public Utilities