Illness caused by drinking water from a drinking water vending machine. It found that never had the illness (77.7%). Do the bacteria coliform test (11). testing has found that the No. 1 is not qualified (100%), yellow is in danger-level step 3 (56.7%), Orange, or yellow-orange hazard level stage 2 (20%), Brown or orange-brown is in dangerous levels of step 1 (23.3%), 2 (100%), yellow, danger level step 3 (60.0), Orange, or yellow-orange hazard level step 2 (13.3%), Brown or orange-brown is a dangerous level, in step 3 (23.3%).
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