Sec. 9-1-11 Private Fire Protection Service-Unmetered-Upf-1.
   (a)   Service Charge Availability. This service shall consist of unmetered connections to the main for private fire protection systems such as automatic sprinkler systems, standpipes (where the same are connected permanently or continuously to the mains) and private hydrants. This service shall also include reasonable quantities of water used for testing check valves and other backflow prevention devices.
   (b)   Quarterly Private Fire Protection Service Demand Charges. Quarterly demand charges for private fire protection service:
      Size of Connection   Charge
      2-inch   $   25.00
      3-inch   $   40.00
      4-inch   $   50.00
      6-inch   $   75.00
      8-inch   $ 100.00
   (c)   Billing. Same provisions as for Mg-I service.
   (d)   Combined Service. When a 4-inch or larger connection is made to the main for private fire protection service, such service line may be tapped with a smaller size branch line for general service. This small branch line shall be metered and the water therefrom billed at the regular metered rates, Schedule Mg-1. The charge for private fire protection service will be that applicable to the size of connection to the main as stated in the above schedule. Where "X" equals the metered private fire protection quarterly demand charge applicable to the size of connection, and "Y" is the quarterly service charge for general service, the charge for private fire protection service shall be (X-.30Y).