Preventing Stormwater Pollution

Simple ways to keep pollution out of local waterways.

Stormwater runoff happens when rain or melted snow flows over streets, sidewalks, driveways, parking lots and other hard surfaces. As it moves, it can pick up dirt, trash, oil, grease, fertilizers, pet waste, leaves and other pollutants along the way.

In many areas, stormwater flows into storm drains and then directly to local streams, rivers and the Chesapeake Bay without being treated first. That means the choices we make at home and in our neighborhoods can have a direct impact on water quality.

Why Stormwater Pollution Matters

Stormwater runoff can carry too much sediment, nitrogen, phosphorus and bacteria into local waterways. These pollutants can contribute to algae growth, reduce oxygen levels for aquatic life and affect the health of waterways used for swimming, fishing and shellfish harvesting.

Preventing stormwater pollution starts with keeping pollutants off the ground, out of streets and away from storm drains.

Keep Leaves and Yard Debris Out of Storm Drains

Leaves may seem harmless, but they can create problems when they are raked or blown into streets, ditches, marshes or storm drains. Leaves and yard debris can clog storm drain pipes, contribute to street flooding and release excess nutrients as they break down.

What to do with leaves and yard debris:

Never rake or blow leaves into streets, ditches, marshes or storm drains
Check your locality’s collection schedule and requirements and only place leaves and yard debris out on designated pickup days
Mow over leaves to create mulch for your lawn
Add fallen leaves to your compost pile when possible

Reduce Pollution Around Your Home

Small habits around your home can help keep pollution out of storm drains and local waterways. From your kitchen sink to your yard, everyday choices can make a difference.

Ways to help:

Keep fats, oils and grease out of drains
Scoop, bag and trash pet waste
Test your soil before fertilizing
Seed bare spots to help prevent erosion
Plant native plants that need less watering, fertilizer and pesticides
Keep grass clippings and yard waste out of the street
Do not feed geese
Keep wipes, paper towels and hygiene products out of the toilet
Report illegal dumping into streets or storm drains

Learn About Your Watershed

Every neighborhood is part of a watershed, which means rainwater that falls where you live eventually drains to a nearby stream, river, bay or other body of water. Learning where your water flows can help you understand how everyday actions connect to the larger environment.

Participating in watershed protection programs, such as Bay Star Homes, is a great way to show your commitment to cleaner waterways.

Become a Bay Star