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Delaware Department of Transportation

Stormwater Management

Household Chemicals

  • Many chemicals commonly used around the home are toxic. Select less toxic alternatives. Use non-toxic substitutes wherever possible.
  • Buy chemicals only in the amount you expect to use, and apply them only as directed. More is not better.
  • Take unwanted household chemicals and vehicle fluids to hazardous waste collection centers (call the Delaware Solid Waste Authority at 1-800-404-7080 or www.dswa.com for a complete list of accepted materials and drop off locations in your area); do not pour them down the drain
  • Leftover household pesticide? Do not indiscriminately spray pesticides, either indoors or outdoors, where a pest problem has not been identified. Call the Delaware Solid Waste Authority at 1-800-404-7080 or www.dswa.com for a complete list of accepted materials and drop off locations in your area.
  • Regular vehicle maintenance reduces the potential for leaks.
  • Never pour unwanted chemicals on the ground.
  • Use low-phosphate or phosphate-free detergents. Phosphate containing soaps can kill wildlife throughout the stormwater system.
  • Use water-based products whenever possible.
  • Recycle motor oil and filters


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