First, the water sampling procedure must be followed accordingly to avoid re-sampling. This is because if the sample is not taken correctly, following the procedure, contamination of the water samples could occur. When water samples need to be analyzed in a laboratory, the result may not be accurate. To perform water sampling, people should first wash their hands thoroughly, then wear gloves while collecting samples. The reason is to avoid contamination of the water sample and protect individuals from microbial organisms present in the water that could be harmful to humans. Next, all collected samples should be placed in the clean bottle with detailed labeling. Labeling the bottle before taking the water sample is important to prevent the sample from being mixed. Additionally, it is advisable not to use water-soluble ink when labeling as blurry ink can be difficult to read and it will become difficult to identify the sample. To transport the water sample to the microbiology laboratory for analysis, it is first necessary to contact the nearest microbiology laboratory in advance or as soon as possible to inform them about the water sample to be analyzed so that they can prepare the appropriate material for the analysis. 'analyses. Proper packaging is very important to preserve the condition of the water sample and avoid contamination of the water sample. As soon as the water sample is collected following the correct procedure and stored in a clean, sterile bottle, the sample should be packaged in a shipping cooler or foam box that can only be used for that particular sample . Samples should be stored on ice to ensure that the sample temperature is low. Using regular ice is sufficient to keep the sample cold. However, dry ice should never be used as it may freeze the sample and is unsafe to ship. The refrigerator should be double lined with plastic bags, to avoid leaks. Some suitable bag suggestions that can be used are large durable plastic or garbage bag. The recommended temperature for storing the water sample is between 0 and 10 °C. The important thing about the cold is to prevent the multiplication of bacteria.