Arnold has multiple water providers: Jefferson County Water, Jefferson County Water, and Public Water Supply District 10, view all. This page provides information about Jefferson County Water.

The Jefferson County Public Water Supply District No. 3 supplies water to about 17,000 residents living in the Arnold area, Jefferson County, Missouri. The Jefferson County Public Water Supply District No. 3 collects water from rivers, lakes, streams, ponds, reservoirs, springs, and wells and purchases water from MO American St Louis and St Charles Counties.

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Arnold Drinking Water Quality

Consumer Confidence Water Quality Reports

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

Contact Jefferson County Water Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
None
Po Box 920
Arnold, Missouri 63010-0000

phone
Pwsd3@Sbcglobal.Net

Emergency (24 hours - broken water main or pipeline, etc.)
636-296-7053

Pay Your Jefferson County Water Bill

Already have an account?

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

How to Start Arnold Water Service

Starting Your Service

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