Preventing Stormwater Pollution: Parks and Grounds Maintenance

Plant Selection

• Use native or adapted perennial vegetation.

Often a misconception about native plants is that they are weedy and only used in a meadow or natural setting. Many great native perennials and shrubs are mainstays in gardens. Visit our native plants page for ideas.

Watering

• Check soil moisture and water only when the top 4" to 5" of soil is dry.
• Avoid runoff by adjusting watering time, direction and volume of spray heads.
• Turn off sprinklers during rainy weather.
• Install rain and freeze sensors on automated sprinkler systems.

Debris Management

• DO NOT dispose of grass clippings, leaves, or other debris in the storm drain.
• Remove accumulated litter and debris from storm drain inlets.
• Mow grass as high as possible leaving clippings on the lawn.
• Use composted leaves as a soil amendment or shred and add to flower beds as mulch.
• Sweep paved surfaces or blow clippings and trimmings onto grass rather than hosing down.

Soil Management

• Test soil to determine fertilizer needs.
• Aerating and composting reduces fertilizer needs, improves drainage, and promotes root growth.
• Limit soil erosion by planting vegetation on bare areas and using mulch or matting for landscaped areas.

Pesticide and Herbicide Practices

• Follow safety, storage and disposal procedures for chemicals.
• Follow label directions when mixing or applying chemicals.
• Mix chemicals on an impervious surface away from storm drains.
• DO NOT apply during windy conditions or if rain is predicted within 24 hours.
• Report any suspected problems regarding chemical  applications.
• Use landscaping chemicals only as needed.
• Apply chemicals to the problem area only.
• Carefully select the appropriate product for the problem.
• Use non-toxic substitutes for chemicals when possible.