Clark County Consolidated Public Water Supply District No. 1, a public community water system under the City Department of Public Works, provides water to about 7,140 residents living in Williamstown, Lewis County, Missouri. Founded in 1856, the Clark County Consolidated Public Water Supply District No. 1 System currently obtains water from groundwater sources, primarily three wells that drill into the aquifer underneath the area.
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Williamstown Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Clark County Consolidated Public Water Supply District 1 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 Clark County Consolidated Public Water Supply District 1 website.

Contact Clark County Consolidated Public Water Supply District 1 Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
Rr1 Box 30
Williamstown, Missouri 63473-0000

phone
None

Emergency (24 hours - broken water main or pipeline, etc.)
573-853-4550

Pay Your Clark County Consolidated Public Water Supply District 1 Bill

Already have an account?

If you already have an account, you just need to login to the Clark County Consolidated Public Water Supply District 1 site. Clark County Consolidated Public Water Supply District 1 accepts credit cards, debit, and direct deposit. Click here to login.

How to Start Williamstown Water Service

Starting Your Service

When you move to a new home in Williamstown, you'll most likely already have running water, but you'll still need to set up water service with the Clark County Consolidated Public Water Supply District 1. Luckily, Williamstown 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 Williamstown, you'll need to stop your water service with the Clark County Consolidated Public Water Supply District 1, 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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