Environment, Rockville Reports

Keep Rockville Clean by Knowing Who to Call

May 1, 2026

Rainwater flows from a grassy sidewalk curb into a street gutter during a heavy rainfall, causing runoff and minor flooding.

Help keep Rockville’s water systems safe and flowing smoothly. 

Discolored water, sewer backups or blocked storm drains can be reported to the Department of Public Works’ 24-Hour Emergency Line at 240-314-8567. 

Acting quickly helps prevent damage and protects public health. 

Prevent common issues before they start. Never flush wipes, even those labeled “flushable,” and never pour grease, chemicals or debris down sinks, toilets and other drains. They can cause clogs, backups and pollution. 

Report illegal dumping, spills or stream pollution to Rockville’s Pollution Hotline at 240-314-8348.