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This study has compared the relationship between physical and chemical water quality in three areas. The first area is the Ph ru Chi Public Park canal of Khok Lor Subdistrict. The second area is the water source in the community area of Khok Lor Subdistrict, and the third area is the Cinta Market canal of Thap Thiang Subdistrict by analyzing the physical and chemical quality of water, there are 10 parameters, namely copper content, iron content, nitrate amount, phosphate amount, electrical conductivity, water transparency ,water temperature Acidity-base (pH) water hardness value The amount of dissolved oxygen (DO) and calculation of water hyacinth density from water analysis. It was found that copper content, iron content, phosphate content, electrical conductivity, water temperature Acid-base pH (pH) in the Phru Chi Public Park canal, Khok Lor Subdistrict, water sources in the Khok Lor Subdistrict community, an d Cinta Market canal are in a similar range. When evaluating the quality of surface water, it was found that all 3 water sources that are type 2 water sources to be water sources that receive wastewater from certain types of activities and can be beneficial for consumption and use which must go through normal disinfection first and go through the general water quality improvement process first. The water source in the Khok Lor Subdistrict community is of the lowest quality because the amount of dissolved oxygen in the water has an average of 4 mg/L ± 0, the pH of the water has an average of 7 ± 0, and the water's transparency is average was 22.17 cm ± 6.37, the average water hardness was 198.33 mg/L ± 9.81, followed by the Phru Chi Public Park canal. But the water hardness was 209.67 mg/L ± 19.63 and the nitrate was 10 mg/L ± 0, which was higher than the standard. And Cinta Market canal is the source of the best quality. The amount of dissolved oxygen in the water had an average value of 7.67 mg/L ± 1.15, the amount of hardness of the water had an average value of 56.67 mg/L ± 9.81, but the amount of phosphate was 1 mg/L ± 0 and was considered. Water hyacinth density It was found that the water source in the Khok Lor Subdistric t community had the highest density at 6.32 kg/m2, followed by the Phru Chi Public Park canal at 5.68 kg/m2 and Cinta Market canal no water hyacinths were found.