(A) Establishments with equipment list will normally require premise isolation with a reduced pressure principle assembly depending on hazard unless otherwise found to have an appropriate air gap.
Many devices or equipment below may be designed and constructed with approved air gaps that would adequately protect the Water Department. However, the cross connection control inspector should consider and make judgments on the amount risk that the establishment poses to the distribution and not solely on the presence or absence of the devices, situations or equipment listed below.
(B) The following is an incomplete list of equipment normally requiring backflow prevention assemblies, it is to be noted that any connection with piping, equipment or devices that contain or may contain substances that are pollutants or contaminants will require premises isolation.
Air-conditioning systems (using water for processing)
Aspirators
Air lines
Autoclaves and sterilizers
Auxiliary systems
Baptismal tanks
Bathtubs (hard piped)
Bedpan washers
Bidets
Booster pumps
Brine tanks, softeners
Boilers
Car wash equipment
Chemical feeders
Chillers
Chlorination equipment
Coffee urns
Commercial cookers
Condensers
Compressors
Cooling systems
Cooling towers
Culture vats
Cuspidor, dental
Developing equipment
Dishwashers (commercial)
Display fountains
Drinking fountains
Ejectors, steam or water
Extractors
Fire protection systems, standpipes, sprinkler systems and drain lines
Fish tanks, ponds
Floor drains
Food mixing tanks
Frost-free toilets, hydrants and fountains
Garbage grinders
Garbage can washers
Garden sprayers
Heat exchangers
Humidity controls
Hydraulic equipment
Hydraulic insecticide or fertilizer applicators
Hydraulic lifts
Ice makers
Irrigation systems, lawn sprinklers
Kitchen equipment
Laboratory equipment
Laundry equipment
Lavatories
Lawn sprinklers
Liquid handling systems
Lubrication, pump bearings
Medical equipment
Pest control equipment
Photo laboratory sinks
Potato peelers
Pressure cookers
Process water circulation systems
Pump, priming systems
Sewer flush tanks
Shampoo sinks, basins
Showers, telephone type shower heads
Sinks, slop sinks
Soda fountains
Solar water and space heating equipment
Steam boilers
Steam tables
Stop and waste vales
Swimming pools, ponds, fountains
Tank and vats
Therapeutic tanks, spas and hot tubs
Threaded hose bibbs
Toilets, flushometer, flush tank, ballcock, flush valve siphon jet
Vegetable peelers
Vacuum systems
Urinals (siphon set blowout)
Vacuum systems (water operated with water seals)
Water treatment devices
Water troughs
Water-using mechanical equipment
Water jacketed tanks, vats, cookers
(Ord. 1297, passed 4-12-2011)