31/05/2026
Did you know?
Litter enters a lake or stream.
People may leave trash on shorelines, parks, roads, or beaches.
Wind can blow lightweight items like plastic bags, cups, and wrappers into the water.
Rain washes trash into waterways
Rainwater carries litter from streets, parking lots, and neighborhoods into storm drains.
Many storm drains flow directly into nearby streams, rivers, or lakes without treatment.
Waterways connect together
Most lakes have an outlet stream or river.
Water flows downhill from smaller streams to larger rivers and eventually to the ocean.
Flooding and storms move debris
Heavy rain can wash large amounts of trash from shorelines and riverbanks.
Floodwaters can carry everything from plastic bottles to abandoned fishing gear long distances.
Plastic breaks into smaller pieces
Sunlight and wave action break plastic into tiny pieces called microplastics.
These pieces can travel through entire watersheds and eventually reach the ocean.
For example, a plastic bottle dropped into a creek near Olympia could flow into larger rivers, reach Puget Sound, and ultimately become part of the marine environment.
This is one reason Clean Shores' work is so important—even trash picked up far inland can prevent pollution from eventually reaching the ocean and harming marine life. A single piece of litter removed from a ditch, stream, or lake today may be one less piece of debris that reaches the coast later.