The use of remote sensing data in water quality monitoring has become useful and important in recent years. The information as quantitative data on water characteristics can be obtained much more easily and quickly. However, satellites and sensors used in the analysis of water quality parameters are just as important. In recent years, the monitoring of water quality parameters has focused mainly on the development of algorithms that use different combinations of bands in the visible and infrared field of the electromagnetic spectrum. By using sensors with moderate resolution, we may not obtain the appropriate information for the analysis we perform. In this case, the Sentinel 2 images are suitable for the analysis of water quality parameters, and can reach a resolution of 10 m. The main purpose of this study was to assess the accuracy of the Sentinel 2 images by using different algorithms and methods to calculate parameters of water quality in lakes, such as chlorophyll-a, total suspended matter (TSM) and turbidity (TU) for a period of 5 years. As well, were used infrared thermal bands (TIR) of MODIS optical sensors In order to determine the water surface temperature, correlated with Sentinel 2 images. Parcovaci, Tansa, and Podu Iloaiei lakes being monitored by the Prut-Barlad Water Basin Administration, located in the NE part of Romania with multiple uses, such as flood protection supply of settlements, irrigation, and fish farming. 15 Sentinel-2 Level 1C - Top of Atmosphere products were used in the SNAP software, which were preprocessed, then geometric and atmospheric image correction was performed. In the end, the focus was on B4, B5, B6, B7 reflection bands, which represented the input data for testing the empirical equations to calculate water quality parameters. The distribution of parameters was determined for three sections of the tanks: tail, middle and dam. Were monitored 3 seasons, and the summer season shows exceeded the maximum allowed limit, indicating a predominantly hypertrophic and secondary oligotrophic, mesotrophic and eutrophic ecosystem. The analysis of Sentinel-2 images is useful for monitoring water quality parameters, especially if are used the correct steps of the methodology, in the right order. All of these can be useful sources of information that can be used for complex assessments of the trophic status of barrier lakes.