Yard clippings and leaves are natural, so they don cause problems if swept into storm drains, right?
Grass, leaves and yard clippings that are repeatedly swept into catch basins can clog the drainage and cause flooding. They can also become a breeding ground for rodents and insects. Grass and leaves that enter the ocean contribute to new plant growth and lower oxygen levels, threatening fish and other organisms. For more information refer to the tips for residents and backyard conservation guide.
