Definitions

Question 1

Multi-barrier approach

Answer 1

Looks at each drinking water system from source to tap to make sure all known and potential hazards are identified and addressed

Question 2

Type 1 septic system

Answer 2

Treatment by a septic tank and dispersal field only

Question 3

TC

Answer 3

a group of bacteria that are naturally found on plants and in soils, water and intestines of humans and warm-blooded animals. Widespread in env and can be used as one of the tools to determine the efficacy of the system

Question 4

E.coli

Answer 4

a species of bacteria found in intestines of humans and animals. Present in feces and can be easily measured in water which makes it a indicator of fecal contamination. Pathogens in feces pose the greatest risk to public health

Question 5

Biofilms

Answer 5

Layer of microorganisms contained in a matrix or slime layer which forms on surfaces in contact with water. Presence can indicate lack of proper disinfection and can be a reservoir for pathogens