Islip has multiple water providers: Suffolk County Water and Brentwood Water District. This page provides information about Brentwood Water District.

The Suffolk County Water Authority provides water for about 28,500 residents living in the Islip Town area, New York. Established in 1683, the Suffolk County Water Authority currently obtains its supply from a groundwater source, wells that pump from the Long Island Aquifer System, consists of (shallowest to the deepest) 273 wells in Upper Glacial Aquifer, 344 SCWA wells in Magothy Aquifer, three wells in the Raritan Clay Aquifer, and three wells in the Lloyd Aquifer.
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Oakdale Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Brentwood Water District Water to assess local water quality each year and distribute a Consumer Confidence Water Quality Report. At WaterZen, we review these reports and make the information available, in a concise, straightforward, and easy-to-understand way. You can find CCR report on the Brentwood Water District Water website.

Contact Brentwood Water District Water Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
4060 Sunrise Highway
Oakdale, New York 11769

"No email provided. Please visit the contact form." (

Emergency (24 hours - broken water main or pipeline, etc.)

Pay Your Brentwood Water District Bill

Already have an account?

If you already have an account, you just need to login to the Brentwood Water District site. Brentwood Water District accepts credit cards, debit, and direct deposit. Click here to login.

Want to create a new account?

You can create a new account on the Brentwood Water District website. Once you create the account, you can setup payment with credit, debit, or direct deposit. Click here to create an account.

Want to pay without an account?

You can make a one-time payment without creating an account. You will need to have your credit or debit card in order to make the one time payment. Click here to make a one time payment.

How to Start Islip Water Service

Starting Your Service

When you move to a new home in Oakdale, you'll most likely already have running water, but you'll still need to set up water service with the Brentwood Water District. Luckily, Islip has made it pretty simple with the following online form. Starting service generally takes just two business days.

Click here to fill out a Start Service Form.

Stopping Your Service

When you move out of a home in Oakdale, you'll need to stop your water service with the Brentwood Water District, so you don't keep getting billed. Simply fill out the following online form. Stopping service normally takes just two business days.

Click here to fill out a Stop Service Form.

More Water Providers in New York