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Where dental pumping equipment connects to the water distribution system, the water supply system shall be protected against backflow in accordance with Section 18-29-608.13.1, Section 18-29-608.13.5, Section 18-29-608.13.6 or Section 18-29-608.15.
Private water supplies shall be in accordance with Sections 18-29-608.17.1 through 18-29-608.17.1.2.
A potable ground water source or pump suction line shall not be located closer to potential sources of contamination than the distances shown in Table 18-29-608.17.1. In the event the underlying rock structure is limestone or fragmented shale, the local or state health department shall be consulted on well site location.
Source of Contamination | Distance (feet) |
Source of Contamination | Distance (feet) |
Barnyard | 100 |
Farm silo | 25 |
Pasture | 100 |
Pumphouse floor drain of cast iron draining to ground surface | 2 |
Seepage pits | 50 |
Septic tank | 25 |
Sewer | 10 |
Subsurface disposal fields | 50 |
Subsurface pits | 50 |
For SI: 1 foot = 304.8 mm.
The distances outlined in Table 18-29-608.17.1 constitute minimum separation and shall be increased in areas of creviced rock or limestone, or when the direction of movement of ground water through sources of contamination is toward the well.
No pipe or system of piping in any building, structure, or premises, which receives its supply from the Chicago Waterworks System shall be directly connected to any device, appliance, or apparatus in which such water supply is used to provide power through a water jet or other device to create vacuum or partial vacuum with which to operate any aspirator, syphon, cellar drainer, ejector, cleaner, sweeper, conveyor, or washer of any kind or description.
The provisions of this section shall apply to the special devices and equipment installed and maintained in the following occupancies: nursing homes, homes for the aged, orphanages, infirmaries, first aid stations, psychiatric facilities, clinics, professional offices of dentists and doctors, mortuaries, educational facilities, surgery, dentistry, research and testing laboratories, establishments manufacturing pharmaceutical drugs and medicines, and other structures with similar apparatus and equipment classified as plumbing.
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