Illness caused by drinking water from the drinking water vending machine Found that never have an illness (77.7%) were tested for coliform bacteria (e 11) all 2 times times 1 no standard criteria (100%). Yellow in the dangerous level step 3 (56.7%),. Orange or yellow, orange is in the dangerous level step 2 (20%),. Brown or brown and orange in the dangerous level step 1 (23.3%), the 2 (100%) yellow were dangerous step 3 (60.0),. Orange or yellow, orange is in the dangerous level step 2 (13.3%), brown or brown and orange in the dangerous step 3 (23.3%).
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