Sediment dredging practices (removal) is one of the intra-lake management initiatives. After sediment dredging in Lake Mogan; in the study aiming to determine a) The change of sediment quality parameters (organic matter, total phosphorus, total nitrogen, total organic carbon, redox potential) depending on the months-stations, b) The pollution status of the sediment, based on the nutrients (pollution index, enrichment factor, organic nitrogen index); two stations in the littoral zone (the station I; especially the mine processing facilities, domestic wastewater and the station II; the area where the domestic and agricultural wastewater reaches) were selected. According to the findings; a) The highest total organic carbon (6.30% in May) and total nitrogen (0.69% in November) values were found in the station II, and the total phosphorus value was found in the station I (0.32%) in May. It was determined that both agricultural and domestic waste inputs are effective in both months-stations. b) Pollution index and organic nitrogen indexes indicate that the sediment is contaminated with the most nitrogen and other nutrients. According to the enrichment factor, the parameter showing the most enrichment was determined as total phosphorus. Pollution indexes have shown that the dredging attempts were not effective on organic matter, total nitrogen, and total phosphorus levels in the sediment; and in the context of reducing both the cost of dredging and the loss of time, the need to prioritize dredging areas, dredging depth, technique, timing etc. In addition, nutrient levels should be monitored, especially due to the risks of release into lake water.