Figure: 30 TAC §290.47(i)
Appendix I: Assessment of Hazards and Selection of Assemblies
The following table lists many common hazards. It is not an all-inclusive
list of the hazards which may be found connected to
public water
systems.
|
Premises Isolation - Description of Premises |
Assessment of Hazard |
Required Assembly |
|
Aircraft and missile plants |
Health |
RPBA or AG |
|
Animal feedlots |
Health |
RPBA or AG |
|
Automotive plants |
Health |
RPBA or AG |
|
Breweries |
Health |
RPBA or AG |
|
Canneries, packing houses and rendering plants |
Health |
RPBA or AG |
|
Commercial car wash facilities |
Health |
RPBA or AG |
|
Commercial laundries |
Health |
RPBA or AG |
|
Cold storage facilities |
Health |
RPBA or AG |
|
Connection to sewer pipe |
Health |
RPBA or AG |
|
Dairies |
Health |
RPBA or AG |
|
Docks and dockside facilities |
Health |
RPBA or AG |
|
Dye works |
Health |
RPBA or AG |
|
Food and beverage processing plants |
Health |
RPBA or AG |
|
Hospitals, morgues, mortuaries, medical
clinics, |
Health |
RPBA or AG |
|
Metal manufacturing, cleaning, processing,
|
Health |
RPBA or AG |
|
Microchip fabrication facilities |
Health |
RPBA or AG |
|
Paper and paper products plants |
Health |
RPBA or AG |
|
Petroleum processing or storage facilities |
Health |
RPBA or AG |
|
Photo and film processing labs |
Health |
RPBA or AG |
|
Plants using radioactive material |
Health |
RPBA or AG |
|
Plating or chemical plants |
Health |
RPBA or AG |
|
Pleasure-boat marinas |
Health |
RPBA or AG |
|
Private/Individual/Unmonitored Wells |
Health |
RPBA or AG |
|
Reclaimed water systems |
Health |
RPBA or AG |
|
Restricted, classified or other closed facilities |
Health |
RPBA or AG |
|
Rubber plants |
Health |
RPBA or AG |
|
Sewage lift stations |
Health |
RPBA or AG |
|
Sewage treatment plants |
Health |
RPBA or AG |
|
Slaughter houses |
Health |
RPBA or AG |
|
Steam plants |
Health |
RPBA or AG |
|
Tall buildings or elevation differences where
the |
Nonhealth |
DCVA |
|
Internal Protection - Description of Cross Connection |
Assessment of Hazard |
Required Assembly |
|
Aspirators |
Nonhealth† |
AVB |
|
Aspirator (medical) |
Health |
AVB or PVB |
|
Autoclaves |
Health |
RPBA |
|
Autopsy and mortuary equipment |
Health |
AVB or PVB |
|
Bedpan washers |
Health |
AVB or PVB |
|
Connection to industrial fluid systems |
Health |
RPBA |
|
Connection to plating tanks |
Health |
RPBA |
|
Connection to salt-water cooling systems |
Health |
RPBA |
|
Connection to sewer pipe |
Health |
AG |
|
Cooling towers with chemical additives |
Health |
AG |
|
Cuspidors |
Health |
AVB or PVB |
|
Degreasing equipment |
Nonhealth† |
DCVA |
|
Domestic space-heating boiler |
Nonhealth† |
RPBA |
|
Dye vats or machines |
Health |
RPBA |
|
Fire-fighting system |
Health |
RPBA |
|
Flexible shower heads |
Nonhealth† |
AVB or PVB |
|
Heating
equipment |
|
|
|
Hose bibbs |
Nonhealth† |
AVB |
|
Irrigation systems |
|
|
|
Kitchen equipment - Commercial |
Nonhealth† |
AVB |
|
Lab bench equipment |
Health or Nonhealth† |
AVB or PVB |
|
Ornamental fountains |
Health |
AVB or PVB |
|
Swimming pools |
|
|
|
Sewage pump |
Health |
AG |
|
Sewage ejectors |
Health |
AG |
|
Shampoo basins |
Nonhealth† |
AVB |
|
Specimen tanks |
Health |
AVB or PVB |
|
Steam generators |
Nonhealth† |
RPBA |
|
Steam tables |
Nonhealth† |
AVB |
|
Sterilizers |
Health |
RPBA |
|
Tank vats or other vessels containing toxic
|
Health |
RPBA |
|
Trap primers |
Health |
AG |
|
Vending machines |
Nonhealth† |
RPBA or PVB |
|
Watering troughs |
Health |
AG or PVB |
NOTE:
AG = air gap; AVB = atmospheric vacuum breaker; DCVA = double check valve backflow prevention*AVBs and PVBs may be used to isolate health hazards under certain
conditions, that is, backsiphonage situations.
Additional area of premises
isolation may be required.
†Where a greater hazard exists (due to
toxicity or other potential health impact) additional area protection
with
RPBAs is required.