Updating and improving storm drain stencils is a highly effective Best Management Practice (BMP) for stormwater education and pollution prevention. Clear, compelling signage at storm drain inlets serves as a visual reminder that these drains are directly connected to our waterways. As part of the Stormwater Quality Leadership Program, student leaders have audited the condition and clarity of existing storm drain signage in their campus and communities. By identifying faded, unclear, or outdated messaging, students were empowered to design and propose improved stencil artwork that better communicates the environmental impact of runoff and improper disposal.

For example, our interns at San Dieguito Academy High School in Encinitas, California, identified the need for improved signage on their campus storm drains and created a revised stencil design emphasizing the direct connection between stormwater and local bodies of water. Their approach focused on increasing visibility, encouraging responsible behavior, and reinforcing environmental awareness. 

Impressed by the stencil design, the district’s facilities department adopted the stencil for use across all school sites. Students then presented the project to the Encinitas City Council, who approved the design for broader application throughout the city. This BMP implementation illustrates how student-led initiatives can directly improve the community while fostering both environmental awareness and civic engagement. 

To check out their design on the City of Encinitas' website, click here.