Storm drains flow directly to lakes and streams without any filtration. This means that any grass clippings and leaves, spilled chemicals, or other polluted runoff also flows directly the waterways. An effective and easy way to increase awareness of this is by stenciling messages like "No Dumping, Drains to Waterways on these storm drains. The District has stenciling kits available if you would like to stencil drains in your neighborhood! The District sometimes hosts volunteer events to stencil many drains across the watershed.