Premise Isolation

High Health Cross-Connection Hazard Premises Requiring Premises Isolation by AG or RPBA

  • Agricultural (farms and dairies)
  • Beverage bottling plants
  • Car washes
  • Chemical plants
  • Commercial laundries and dry cleaners
  • Film processing facilities
  • Food processing plants
  • Hospitals, medical centers, nursing homes, veterinary, medical and dental clinics, and blood plasma centers
  • Laboratories
  • Metal plating industries
  • Mortuaries
  • Petroleum processing or storage plants
  • Piers and docks
  • Premises where both reclaimed water and potable water are provided
  • Premises with an unapproved auxiliary water supply interconnected with the potable water supply
  • Premises with separate irrigation systems using the purveyor's water supply and with chemical addition+
  • Radioactive material processing plants or nuclear reactors*
  • Survey access denied or restricted
  • Wastewater lift stations and pumping stations
  • Wastewater treatment plants*

+ For example, parks, playgrounds, golf courses, cemeteries, and estates

* RPBAs for connections serving these premises are acceptable only when used in combination with an in-plant approved air gap; otherwise, the purveyor shall require an approved air gap at the service connection.