Water may contain various microorganisms, algae, unicellular plants or animals such as crustaceans. It is not inconvenient that these living things are found in the waters except for those who are pathogenic, that is disease, provided that they do not exceed certain amounts. However, if it exceeds the specified amount, it changes the taste, color and smell of the water. In addition, some of these organisms are beneficial to the ecological system. For example, protozoa, which are microscopic and unicellular organisms, help in a sense that the water cleans itself because it destroys bacteria.

Sea and lake waters, dam waters, surface waters that are open to environmental settlement, waters near industrial zones, waters where sewage system is faulty and non-disinfected stagnant waters are suitable environments for the growth of microscopic organisms and threaten human health.

If coliform bacteria are detected in the waters, it is understood that sewage wastes are mixed into these waters and that the causative microorganisms start to grow. Even if the number of these microorganisms is small, they grow rapidly as soon as they find the appropriate medium. Therefore, the city network water is not used until disinfected. If this is not done, bacteria and viruses begin to multiply rapidly in the network waters. In order to ensure the microbiological quality of the waters, the waters should be protected from contamination.

Microorganisms present in water can be classified as follows:

• Some microorganisms are naturally present in water.
• Some microorganisms pass from soil to water.
• Some of the microorganisms are against the wastes of human and animal and water. Esherichia coli (e-coli) is the leading one.

Microbiological analyzes are performed to check whether drinking and potable water is safe and healthy. As a result of these analyzes, the presence or absence of single or multicellular pathogenic organisms in the water, and the amount and properties of these, if any, are determined.

Our organization, UAF From the Accreditation Agency, Based on the accreditation authority obtained in accordance with TS EN ISO / IEC 17025 standard, it conducts microbiological analyzes within the scope of water analyzes in line with the needs of the enterprises.