Charges will become delinquent on the business day following the due date set forth on the utility bill (FMC Section 6-104(c)). “Residential service” means water service to a residential connection that includes single-family residences, multifamily residences, mobilehomes, including but not limited to mobilehomes in mobilehome parks, or farmworker housing. UB&C collects fees for Water, Sewer,