Prince William Water’s goal is to set fair and equitable rates and fees while providing clean, safe drinking water to its customers and protecting the environment. A key element of providing clean drinking water and protecting the environment is ensuring that Prince William Water’s infrastructure is maintained and in good working condition.  This requires a significant capital investment every year. The most recent factors impacting rate increases are capital replacement needs; the rising cost of construction; and increases in purchased water, purchased water reclamation services and other operating costs.  

Prince William Water purchases most of its drinking water from advanced water treatment plants owned and operated by Fairfax Water. Wholesale water rates charged by Fairfax Water have increased significantly over the past few years.  

Wastewater in western areas of Prince William County is treated at the Upper Occoquan Service Authority (UOSA) Water Reclamation Plant, and wastewater in the eastern areas of Prince William County is treated at the H.L. Mooney Advanced Water Reclamation Facility. Both facilities are among the most advanced water reclamation facilities in the country. Recently, wastewater treatment costs at both treatment plants have also increased considerably. 

In addition, Prince William Water sets rates so that we can properly maintain our infrastructure, meet or exceed environmental regulations, and continue delivering the quality and reliability our customers expect from us.