The Hermiston Water Department provides water for about 18,200 people living in the Hermiston area, Umatilla County, Oregon. The Hermiston Water Department collects water from three deep wells (Well #2, #4, and #6), which draw water from the deep Columbia River Basalt aquifer, and a shallow well (Well #5), which draws from the shallow alluvial aquifer. The primary deep wells connecting to the central distribution system are Wells #2 and #4, while Well #6 serves the city's southeast service region, which is at a greater elevation. The Hermiston Water Department also collects surface water from Lake Wallula on the Columbia River (also known as McNary Pool).

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Hermiston Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Hermiston Water Department 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 Hermiston Water Department website.

Contact Hermiston Water Department Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
235 E Gladys Avenue
Hermiston, Oregon 97838


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

Pay Your Hermiston Water Department Bill

Already have an account?

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

Starting Your Service

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