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Water 100

Solutions Overview

No one single solution will solve the water challenges in Puget Sound. The project’s science advisors have identified over 100 high-impact solutions to help Puget Sound become cleaner and more resilient to climate change effects. Many are ripe for innovation and refinement.

The solutions are organized by sector based on their application. They represent small and large-scale transformations that will reverse the trend of water degradation in our region’s watershed ecosystems. The goal of the Water 100 Project is to accelerate the adoption of solutions by quantifying, ranking and giving visibility to the top 100 most substantive  solutions for a clean and resilient Puget Sound.



Advanced Wastewater Treatment (at Centralized Plants)
Affordable Workforce Housing
Blue-Green Streets & Roadside Bioswales
Clean Preservatives for Utility Poles & Pilings
Decentralized Water Systems
Green Roofs, Facades & Walls
Green, Clean Bridges & Elevated Highways
Grey Infrastructure for Combined Sewage Overflow Control
Low-Flow Bathroom Fixtures
Native Plants & Ecological Lawns
Neighborhood Scale Stormwater Facilities
Pipeline & Outfall Cleaning
Pipelining for Leak Elimination
Rainwater Harvesting
Recycled Water
Site Sustainability Certification
Street Sweeping
Urban Greening & Tree Canopy
Urban RV Pump-Out Facilities
Urban Soil Building
Wastewater Treatment Wetlands
Waterless Bathroom Fixtures


Beaver Dams
Dam Removal
Eelgrass Restoration & Protection
Floodable Parks & Outdoor Flex Space
Forest Protection
Forest Road Decommissioning
Groundwater Recharge
Industrial Area Source Control
Mine Tailing Dewatering & Reuse
Riparian Tree Planting & Stewardship
Septic System Repair & Maintenance
Setback Levees
Smart Stormwater Pond & Cistern Management
Soft Shorelines
Stream Restoration w/Engineered Hyporheic Zone
Sustainable Density & Urban Boundary Management
Voluntary Buyouts
Vulnerability Analysis for Public Works
Wildfire-Resilient Forest Management


Air Pollution Reducing Building Materials
Better Packaging
Decomposable (Ocean) Plastics
Design for Life Cycle
Non-Leaching Roofing & Cladding
Permeable Paving
Red List Free Materials


Biotechnology Crops
Drip Irrigation
Eating Locally
Fisheries Protections
Frozen Seafood
Hydroponic Farming
Integrated Pest Management
Manure Control & Nutrient Management
Plant-Based Diets
Regenerative Agriculture
Regenerative Fish Farming
Regenerative Ranching / Carbon Farming
Sustainable Shellfish Farming
Urban Agriculture
Vertical Farming


Advanced Brake Pads
Bicycle Commuting
Electric Vehicles
Fish Safe Culverts
Mass Transit
Parking Efficiency
Walkable Communities


Electrification of Space & Water Heating
Renewable Energy
Sustainable Aviation & Marine Fuel Alternatives
Waste Heat Recovery


Filter Laundry Wastewater – Microplastics
Fix Fluid Leaks, Car Wash Best Practices
Household Hazardous Waste Community Collection Sites
Life-Cycle Pharmaceutical Management
Pet Waste Pickup
Reusable Water Bottles & Coffee Cups
Truly Flushable Wipes


Coastal Guardian Programs
Electric Vehicle (EV) Fueling Stations
Fix Vessel Leaks, Boat Wash Best Practices
Kelp Aquaculture
Non-Consumption Shellfish Production
Remove Creosote-Treated Wood
Remove Derelict Fishing Gear
Remove Derelict Vessels
Ship Ballast Water Treatment
Smart Sonar
Sustainable Boat Paints
Zero Discharge Marine Zones & Pump Out Facilities
Zero Vessel Idling


Advanced Tires
Autonomous Vehicles
Coordinated Investment of Public Works
Decision Support Tools Using Artificial Intelligence & Machine Learning (AI/ML)
Drone Data Collection
Energy & Water Recovery Toilet
Green Infrastructure Workforce Development
Innovative Uses of Environmental DNA (eDNA)
Intentional Snowpack Management
Nanotech for Pollution Remediation
Natural Economics & Accounting
Rapid Leak Identification in Pipelines
Smart Sensors
Smart Watershed Real-time Control Systems

Join Us

Together, we will find ways to solve chronic challenges, decrease the cost of project delivery, and incentivize mainstream adoption. There is massive untapped potential to design new tools for problems that natural resource managers face daily.

We invite you to join us in identifying solutions and promising new technologies. 

Please indicate your sector interest(s):