Notice and timing
How delinquency is handled
Grace period after the due date
30 days from the billing date before interest begins, according to the published office-service charge schedule.
Late-fee calculation
Interest is charged from the billing date when the bill is not paid within 30 days: 1.5% per month, or 18% per annum. A returned check charge is $20.00.
Disconnection timeline
The reviewed OBMUA rate schedule establishes the 30-day payment/interest trigger but does not publish an absolute day-by-day delinquency-to-disconnection calendar. Customers must contact billing promptly because restoration charges vary by time of day after service is shut off.