Arapahoe County Water and Wastewater Authority

The Arapahoe County Water and Wastewater Authority (ACWWA) provides water for about 32,000 residents living in the Centennial area, Colorado. Established in 1861, the Arapahoe County Water and Wastewater Authority currently obtains its supply from a combination of groundwater sources: the Cherry Creek Alluvial Aquifer and Denver and Arapahoe Formations of the Denver Basin; collaboration with Joint Water Purification Plant (JWPP); and ACWWA Flow Project with East Cherry Creek Valley Water & Sanitation District (ECCV) and United Water and Sanitation District.
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Centennial Drinking Water Quality

Consumer Confidence Water Quality Reports

Under the authority of the Safe Drinking Water Act, the EPA requires Arapahoe County Water and Wastewater Authority 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.

Contact Arapahoe County Water and Wastewater Authority Customer Service

Have a Question, Issue or Comment?

Main Customer Service

Physical Address:
13031 East Caley Avenue
Centennial, 80111

303-790-4830 (Mon–Fri, 7:00 AM–5:30 PM)
kmcbrien@acwwa.com

Emergency (24 hours - broken water main or pipeline, etc.)
303-886-2059

Pay Your Arapahoe County Water and Wastewater Authority Bill

Already have an account?

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

Want to create a new account?

You can create a new account on the Arapahoe County Water and Wastewater Authority website. Once you create the account, you can setup payment with credit, debit, or direct deposit. Click here to create an account.

Want to pay without an account?

You can make a one-time payment without creating an account. You will need to have your credit or debit card in order to make the one time payment. Click here to make a one time payment.

How to Start Centennial City Water Service

Starting Your Service

When you move to a new home in Centennial, you'll most likely already have running water, but you'll still need to set up water service with the Arapahoe County Water and Wastewater Authority. Luckily, Centennial City 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 Centennial, you'll need to stop your water service with the Arapahoe County Water and Wastewater Authority, 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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