WATER MAIN FLUSHING
An essential part of our system’s maintenance program is to flush hydrants every spring and fall in an effort to clear our water mains of sediment and mineral build-up. This practice improves water quality and helps to extend the life of our water mains.
Water main flushing moves water systematically through sections of our drinking water distribution system, creating a scouring action to clean the line. The increased flow rate scours the water pipe’s inner walls and helps to remove build-up of naturally occurring debris and sediment.
The water is discharged through select hydrants onto local roads or other surface areas. This process is critical to the overall maintenance of a distribution system and is one of the most important practices carried out by public drinking water systems to maintain high water quality, improve the carrying capacity of pipes, and ensure proper operation of distribution system components, such as hydrants and valves.
Spring 2025 Water Main Flushing Program Completed: May 9, 2025
The Sudbury Water District has successfully completed the Spring 2025 Water Main Flushing Program. We thank all residents and businesses for their understanding and cooperation during this important system maintenance.
Fall 2025 Water Main Flushing Schedule: TBD
- Flushing is limited to dead-end water mains only.
- Flushing hours are 7:30 am to 3 pm, Monday – Friday, excluding holidays.
- Flushing will begin in southeast Sudbury and will travel systematically throughout the distribution system by Section (5-1) ending in the northwest quadrant of town.
- Flushing schedule is subject to change due to inclement weather, or water related emergency events.
- Section 5 – Completed – March 28th
- Section 4 – Completed – April 10th
- Section 3 – Completed – April 18th
- Section 2 – Completed – April 30th
- Section 1 – Completed – May 9th
View Alphabetically by Street Name and Anticipated Flushing Period
View by Section in Hydrant Sequence Order and Anticipated Flushing Period
Water Main Flushing Bulletin
Questions About Flushing? Please contact our Administration office during regular business hours by phone at (978) 443-6602 or email customerservice@sudburywater.com.