|Pathogen or Indicator||Treatment methods proven to be effective for removal or inactivation|
|Cryptosporidium||Disinfection with ultraviolet light or ozone and/or filtration.|
|Giardia lamblia||Disinfection and/or filtration.|
|Legionella||Disinfection and/or filtration.|
|Viruses (enteric)||Disinfection and/or filtration.|
|Total coliforms, fecal Coliform, E. coli (NOT including E. coli O157:H7) and Fecal Indicators (Coliphage or Enterococci)||Disinfection with chlorine, ultra-violet light or ozone, all of which act to kill or inactivate E. coli. Systems using surface water sources are required to disinfect to ensure that bacteria are inactivated.|
8. How are pathogens and indicators removed from my drinking water?
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