Each spring, City of Longmont water utilities staff flush the main water lines to keep water quality at its highest level and to ensure that fire hydrants are operational. The benefits realized in water quality and fire protection far outweigh the comparatively small amount of water released during the flushing program.

2020 flushing dates are scheduled for Wednesday, April 1 through Friday, April 24. (Dates subject to change.) Visit our interactive map for a weekly timeline of water line flushing by area. This map will be updated regularly to show which areas are upcoming for water line flushing, as well as which areas have been completed.

You may notice low water pressure, discolored water or no water for short periods of time when flushing is taking place in your neighborhood. We understand that being home more may require the need for water more frequently, but recommend residents limit water use when possible during this time. Particularly, try to avoid using hot water when flushing is occurring in your immediate area.

To learn more about this annual program, visit the water line flushing webpage. For questions about flushing in your area, please call our Customer Service Center at (303) 651‐8416.