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  • Calls originating in Montgomery County: 311
  • Calls originating outside Montgomery County: 240-777-0311
  • Fax: 240-777-7715

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Department of Environmental Protection - main office

255 Rockville Pike, Suite 120
Rockville MD 20850

Division of Solid Waste Services

101 Monroe Street, 6th Floor
Rockville MD 20850

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