The U.S. Environmental Protection Agency requires all water utilities to produce annual water quality reports that convey important information and characteristics about the water they provide to their customers. To view the most recent Prince William Water water quality report for your service area, please select the hyperlinked report below that corresponds to your account location.

Which water system am I part of? View a map of the Prince William County water system.

Most of the drinking water Prince William Water provides to customers throughout Prince William County is treated at facilities owned and operated by Fairfax Water. For more information about Fairfax Water’s water quality, click here.

If you have questions about your water quality, please contact Prince William Water’s Regulatory Affairs Office at (703) 331-4162 or email

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2024 Water Quality Report

Includes information about our Bull Run Mountain and Evergreen System, East System, West System, Hoadly Manor, and Carter's Grove.


Cover of a water quality report. The cover features a photo of two kids playing in a splash pad.

Past Reports