Grass clippings
When it rains, grass clippings can end up in storm drains, causing blockages. Preventing these blockages is easy.

• Compost grass clippings.
•  Keep mowed grass off the street.
• Do not dump grass into ravines. It can plug city drainage systems.
• Do not allow soil, leaves or grass clippings to accumulate on driveways, sidewalks, or in streets.

Other materials
Storm drains transport rain to the nearest river, lake, stream or wetland. Storm water often contains materials found on streets and parking lots such as grass clippings, oil, antifreeze, gasoline, soil, litter, pet wastes, fertilizers, pesticides and leaves. When these materials enter lakes and streams, they become pollutants that can kill fish and reduce water aesthetics.

Help keep storm drains clean:

• Do not dispose of motor oil, antifreeze, pesticides, paints, solvents, or other materials in storm drains.
• Sweep fertilizer and soil off driveways and walkways.
• Flush or bury pet wastes.

Tips to help protect our natural waters