Boise has multiple water providers: SUEZ Water – Idaho and Capitol Water. This page provides information about Capitol Water.

The Capitol Water Corporation supplies water to about 9,000 Boise residents in Ada County. Sources of drinking water include rivers, lakes, streams, ponds, reservoirs, springs, and wells.

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Boise Drinking Water Quality

Consumer Confidence Water Quality Reports

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

Contact Capitol Water Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
2626 Eldorado
Boise, Idaho 83704


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

Pay Your Capitol Water Bill

Already have an account?

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

How to Start Boise Water Service

Starting Your Service

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