Rockville has a systematic flushing program to remove accumulated sediment from the water system and improve water quality. Sediment can cause water discoloration, degrade water quality, and impede fire hydrant water flow, so it is removed from pipes by the planned opening and closing of certain valves and fire hydrants. Chlorine is removed from the water prior to flushing to safeguard the environment.
Rockville maintains approximately 180 miles of water pipes, 4,100 valves, and 1,300 fire hydrants. The city is divided into 39 water main districts that undergo water main flushing in rotating cycles. Flushing hours are Monday – Friday from 7 a.m. – 3 p.m. Some parking restrictions may occur to allow access to water valves.
Low water pressure and discoloration may occur due to water main flushing, repairs, disruptions, or maintenance. If you experience discoloration, run cold water until the water runs clear. These conditions are temporary and should clear up within a few hours.
2025 Scheduled Districts
- Week of May 5: District 15
- Week of May 12: District 16
- Week of May 19: District 5
- Week of May 27: District 18
- Week of June 2: District 39
- Week of June 9: District 6
- Week of June 16: District 7
- Week of June 23: District 9
- Week of June 30: District 8
- Week of July 7: District 10
- Week of July 14: District 21
- Week of July 21: District 27
- Week of July 28: District 31
- Week of Aug. 4: District 25
- Week of Aug. 11: District 23
- Week of Aug. 18: District 36
- Week of Aug. 25: District 30
- Week of Sept. 2: District 26
- Week of Sept. 8: District 24
- Week of Sept. 15: District 37
Contact
Public Works Department
Operations Maintenance Division
240-314-8567
gudepwoffice@rockvillemd.gov
Hours
Monday – Friday
8:30 a.m. – 5 p.m.
Address
Maintenance Facility
14625 Rothgeb Drive
Rockville, MD 20850