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Commercial customers can use certified water capacity. Each user is assigned a number of Equivalent Residential Units (“ERU”), each of which provides 10,000 gallons of monthly consumption. High Demand Charges apply above that limit. Prince William Water may request extra Availability Fees at any time when water demand exceeds capacity purchased. 

 
For account questions, call our Utility Billing Supervisor at (703) 396-6495. 

FOG stands for Fats, Oils and Grease, all of which can severely damage your sanitary sewer system. FOG includes animal and vegetable fats, as well as oils used to cook and prepare food. When poured down the drain, FOG can cause problems in sanitary sewer pipes and sewer laterals. Grease buildup in pipes can cause major damage to pipes and lead to sewage back-ups in your business

General guidelines for classification of waters are as follows: 0 to 17 mg/L as calcium carbonate is classified as soft; 17.1-60 mg/L as slightly hard; 61 to 120 mg/L as moderately hard; 121 to 180 mg/L as hard; and more than 180 mg/L as very hard.  

Our water is moderately hard in the East and West Systems and hard in Bull Run Mountain/Evergreen. For more information, visit our 'Water Hardness Information' page. 

1. Call Customer Service at (703) 335-7950. Be sure to have your account number on hand.
2. You can login to your online account or create an online account here to view your balance. (Link to Create an Account).