INTERCONNECTIONS AND CROSS CONNECTIONS

No connection between a well or boring and another well, boring, water supply system, or contamination source is allowed unless the connection is: A. protected by an air gap as described in UPC section 603.3.1 as incorporated by part 4714.0050 ; B. protected with a backflow prevention device as specified in UPC sections 603.0 to 603.5.23.4 as incorporated by part 4714.0050 ; C. protected with a backflow prevention device as specified in parts 1505.2100 to 1505.2800 if the well is an irrigation well used for chemigation; or D. between wells or borings that meet the construction standards of this chapter, are used for the same purpose, and have equivalent water quality. This part does not apply to a water distribution system after the pressure tank; however, this part does not exempt water distribution systems otherwise regulated by chapter 4714.