Water Authority of Western Nassau County

Water Authority of Western Nassau County Our business office is open Monday through Friday, from 8:00 a.m. to 5:00 p.m. Please note: Customer Service does not monitor Facebook messages.

The Water Authority of Western Nassau County is a self-supporting, public benefit corporation with more than 28,000 customers, serving a population of approximately 120,000 in the towns of Hempstead and North Hempstead on Long Island in New York. except for the following observed holidays:
New Year's Day
President's Day
Memorial Day
Independence Day
Labor Day
Thanksgiving (Thursday & Friday)
Christmas Day

Emergency calls are answered 24 hours a day, 365 days a year at (516) 327-4100. Please call our main number during normal business hours for any non-emergency questions.

03/09/2026

NOTICE: Due to ongoing major construction at our headquarters, Starting Tuesday, March 31st there will be NO ACCESS from Union Turnpike to our building.

Temporary access will be available via Soma Street directly behind the office.

Customers that need to visit our headquarters for new services and related topics will need to call Customer Service at (516) 327-4100 to schedule an appointment for their visit.

We expect this limited access to continue for the full week, but may be extended if the construction requires it.

Thank you for your patience in this matter.

The Water Authority of Western Nassau County would like to remind homeowners and businesses of the importance of keeping...
01/28/2026

The Water Authority of Western Nassau County would like to remind homeowners and businesses of the importance of keeping fire hydrants free of ice and snow so firefighters can connect their equipment without delay in the event of an emergency.

Buried hydrants cause significant delays, increasing the danger and difficulty of fighting a fire. So please, keep yourself and your neighbors safe by clearing hydrants.

Address

1580 Union Tpke
New Hyde Park, NY
11040

Opening Hours

Monday 8am - 5pm
Tuesday 9am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+15163274100

Website

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