The City of Mendota Water supplies water to about 7,273 residents in the Mendota area of LaSalle County, Illinois. The Mendota Water Department collects water from four deep wells that draw groundwater from a Confined Aquifer. The water is treated with fluoride and chlorine for dental health and disinfection. 

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Mendota Drinking Water Quality

Consumer Confidence Water Quality Reports

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

Contact Mendota Water Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
800 Washington St
Mendota, Illinois 61342

phone
None

Emergency (24 hours - broken water main or pipeline, etc.)
815-539-6307

Pay Your Mendota Water Bill

Already have an account?

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

How to Start Mendota Water Service

Starting Your Service

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