A correlation between contamination and unsafe hygiene practices applied by the drivers while filling the tankers was not evident. The drivers of the contaminated tankers as well as those of the tankers without contamination all stated that they cleaned their tankers approximately once a month. In all cases, during tanker filling the hose touched the ground and safety practices were not applied by those drivers while handling water. Moreover, all drivers claimed to completely empty their tanks before refilling them. They also stated that the average of refilling the tankers is between 2 and 5 times per day. None of the tanker drivers ever added chlorine to the water they transport.