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Due to business-specific characteristics, Prince William Water must rely on commercial consumers to predict their water use. Prince William Water will evaluate the customer's usage estimate and the desired meter's suitability.  

Using historical data, Prince William Water can estimate a customer's water use, but it cannot predict their actual use. Due to company demand, ownership or tenant changes, etc., a customer's estimated water use may differ from their actual use. Prince William Water may request extra Availability Fees at any time when water demand exceeds capacity purchased, regardless of property ownership. Customers can buy more capacity and raise their thresholds by recertifying with our Engineering Division at 703-335-7930. 

As erroneous estimations may result in higher Availability Fees or High Demand Charges, Prince William Water advises consumers to estimate their use as accurately as possible. Owners and tenants should understand Developer and User Fees to manage water and sewer accounts cost effectively. 

Commercial High Demand Charges apply year-round since commercial customers' excess use is not confined to residential peak season (May–October).