O'Fallon Drinking Water Quality

Consumer Confidence Water Quality Reports

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

Contact Ofallon Water Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
100 N Main St - City Hall
O'Fallon, Missouri 63366-0000

phone
Bvonharz@Ofallon.Mo.Us

Emergency (24 hours - broken water main or pipeline, etc.)
636-379-7600

Pay Your Ofallon Water Bill

Already have an account?

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

How to Start O'Fallon Water Service

Starting Your Service

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