Board of Water Supply

About Us

The Board of Water Supply owns and maintains approximately 105 miles of mains and 1,140 fire hydrants. Its primary responsibility is to provide an adequate supply of safe, potable water for domestic, industrial, and fire-fighting purposes. All activities arise from and lead back to that simple mandate.

Individual Functions

  • Monitor water quality and treat it with chlorine and other chemicals to ensure that it is safe to drink.
  • Collect samples for analysis on a daily, weekly, monthly, quarterly or annual basis as required in order to comply with Part 5 of the New York State Sanitary Code.
  • Prepare reports to be submitted to the local and/or State Health Department on a monthly, quarterly, or annual basis also in compliance with the requirements of the Sanitary Code.
  • Prepare and distribute the Annual Water Quality Report to inform residents about the water they drink.
  • Maintain, repair, or replace hydrants as needed.
  • Make taps for domestic or industrial customers as required.
  • Investigate the main leaks and repair them.
  • Investigate service line leaks and repair leaking services from the main to the curb valve. (Customer is responsible for the curb valve to the meter.)
  • Maintain or replace water meters to ensure accurate billing.
  • Conduct Annual Hydrant Flushing Program to remove sediments from the main.
  • Conduct Valve Exercising Program as a means to evaluate defective valves in the system so they can be repaired or replaced. This will ensure proper operation in an emergency.
  • Read meters and generate bills. Investigate the cause of unusually high or low bills.

In case of emergency leaks or lack of water, please call the Board of Water Supply emergency number at 914-668-7820. Thank you.

Payment Due Date Information:

All water payments are due within the month specified. Payments received (United States Postmark) after the last collection day of the specified month will be subject to interest and penalties from the first due date.

At this time we are NOT assessing late fees.

Payment Methods:

In person:

Payments can be made in person during office hours from 8:30 AM to 4:30, Monday through Fridays at:

City Hall

1 Roosevelt Square Room 2

Mount Vernon, NY 10550


By Mail:

Payments made by mail with the payment stub should be payable and mailed to:

Board of Water Supply

P.O. Box 241

Mount Vernon, NY 10550


Payments made by mail without the payment stub should be payable and mailed to:

Board of Water Supply

City Hall

1 Roosevelt Square Room 2

Mount Vernon, NY 10550

Water Quality Reports

Access annual water quality reports.

Documents