(A) Whenever a cross connection control device of any kind is required, bypassing shall be prohibited unless the bypass is provided with a similar cross connection control device as the bypass constitutes a cross connection. All cross connection devices shall be inspected and or tested by a registered inspector at the time of installation and at intervals required by this section. Reports of all inspections and tests shall be submitted to the water utility and to the customer within 30 calendar days of the inspection or test. The location and specification of cross connection control devices shall be as required by the water utility.
(B) Air gaps shall terminate a minimum of two pipe diameters of the discharge pipe or six inches, whichever is the lesser, above the rim of receiving vessel, whichever is the higher. Air gaps shall be inspected at intervals not exceeding 12 months to ensure compliance with this subchapter.
(C) Reduced pressure principle backflow preventers shall be installed horizontally, with no plug or additional piping affixed to the pressure differential relief valve port, and with the pressure differential relief valve port a minimum of 12 inches above floor level. Additionally, the device must be installed at a location where any leakage from the pressure differential relief valve port will be noticed, and that allows access to the device for maintenance and testing from floor level, and that will not subject the device to flooding, excessive heat or freezing. Reduced pressure principle backflow preventers shall be tested at intervals not exceeding 12 months.
(D) Double check valve assemblies shall be installed horizontally at a location that allows access to the device for maintenance and testing from floor level and that will not subject the device to excessive heat or freezing. Double check valve assemblies shall be tested at intervals not exceeding 12 months.
(E) Pressure type vacuum breakers shall be installed as near as possible to the irrigation facility, at a location that allows access to the device for maintenance and testing from floor or ground level and that will not subject the device to flooding, excessive heat or freezing. Additionally, the device must be installed with its center line or datum point a minimum of 12 inches above: the floor level, the highest downstream shut-off valve, and the highest downstream overflow rim or discharge point. Pressure type vacuum breakers shall be tested at intervals not exceeding 12 months.
(F) Except for connections for facilities which present a cross connection hazard as defined by 327 IAC 8-10, connections to the water utility shall have double check valve assemblies between the water utility and the customer.
(G) Connections for facilities which present a cross connection hazard as defined by 327 IAC 8-10 shall have an air gap or a reduced pressure principle backflow preventer between the water utility and the customer or component thereof which presents the cross connection hazard.
(Ord. 5-2012, passed 3-13-12)
Statutory reference:
Additional requirements, see 327 IAC 8-10.