Before beginning an outdoor project, locate the nearest storm drains. Protect them from debris and other materials.
Sweep up and properly dispose of construction debris, such as concrete and mortar.
Use only the smallest amounts possible of hazardous substances like paints, solvents, and cleaners, and follow the directions on the label. Clean up spills immediately and dispose of the waste safely. Store substances properly to avoid leaks and spills. Store chemicals indoors or cover the containers to prevent rainwater from washing leaks or spills into storm drains.
Purchase and use nontoxic, biodegradable, recycled and recyclable products whenever possible.
Reduce the amount of paved area and increase the amount of vegetated area in your yard. Use native plants in your landscaping to reduce the need for watering during dry periods. Consider directing downspouts away from paved surfaces onto lawns and other measures to increase infiltration and reduce polluted runoff.