This study was carried out to determine the elimination levels of heavy metal rise resulting from wastewater in agricultural areas irrigated with wastewater, by means of the extraction of the canola (Brassica napus L.) plant. Therefore, the summery Licolly variety of canola (Brassica napus L.) plant was grown by applying wastewater at different moisture levels (Control: 20 kPa, S1: 20 kPa, S2: 35 kPa, S3: 50 kPa, S4: 65 kPa, S5: 80 kPa). Total Cu, Zn, Pb, Cd, Cr, Ni, and Hg concentrations were determined in the harvested plants. At the end of this study, accumulation of Cd, Ni, and Pb could not be determined in the plants, and while the accumulation of Cu, Zn, and Cr was statistically significant, the accumulation of Hg was found to be insignificant.