Sammamish has multiple water providers: Sammamish Plateau Water and Northeast Sammamish Sewer And Water District. This page provides information about Sammamish Plateau Water.

The Sammamish Plateau Water and Sewer District provides water for about 65,543 residents living in the area of Sammamish, Washington. Established in 1948, the Sammamish Plateau Water and Sewer District is currently obtaining its supply from a combination of sources: about 80% groundwater pumped from wells located in two separate, non-connected distribution zones: the Plateau Zone and Cascade View Zone, which pump from the Plateau Aquifer and the Lower Issaquah Valley Aquifer (LIVA); and approximately 20% of your water supply comes from surface water sources operated by Seattle Public Utilities (SPU), which uses water from the Tolt Watershed and Cedar River Watershed.

Sammamish Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Sammamish Plateau Water & Sewer 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.

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Excellent

WaterZen Rating

Lead levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.

What about Sammamish Plateau Water? How much lead is in your drinking water? And how do those levels compare to other cities in the state? We examined data from hundreds of cities across the nation to understand and grade your water quality.

As you can see, Sammamish Plateau Water received the best-possible grade because the amounts of contaminants found in the water supply were better than the Public Health Goal and most other water providers we've analyzed.

Sammamish has multiple water providers: Sammamish Plateau Water and Northeast Sammamish Sewer And Water District. This page provides water quality information for Sammamish Plateau Water.

A-

Excellent

WaterZen Rating

Lead levels in the drinking water of some cities across the United States are too high, potentially creating public-health issues for the people living in those areas.

Sammamish has multiple water providers: Sammamish Plateau Water and Northeast Sammamish Sewer And Water District. This page provides water quality information for Sammamish Plateau Water.

Contact Sammamish Plateau Water & Sewer Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
1510 228Th Ave Se
Sammamish, Washington 98075

425-392-6256
info@spwater.org

Emergency (24 hours - broken water main or pipeline, etc.)
425-392-6256

Pay Your Sammamish Plateau Water Bill

Already have an account?

If you already have an account, you just need to login to the Sammamish Plateau Water site. Sammamish Plateau Water 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 Sammamish Plateau Water 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 Sammamish Water Service

Starting Your Service

When you move to a new home in Sammamish, you'll most likely already have running water, but you'll still need to set up water service with the Sammamish Plateau Water. Luckily, Sammamish 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 Sammamish, you'll need to stop your water service with the Sammamish Plateau Water, 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.

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