Notice and timing
How delinquency is handled
Grace period after the due date
24 days from the bill date; the published due rule says bills are due within 24 days, after which the late charge applies.
Late-fee calculation
A 10% late-payment charge is assessed when the bill is not paid within the stated 24-day period. Customers may contact Customer Service at (703) 335-7950 to discuss an extension; the utility receives no portion of the separate electronic-payment vendor fee.
Disconnection timeline
A dedicated this detail was not publicly posted. The public customer-service pages state the due period and late charge but do not publish a complete day-by-day disconnect schedule.