The purpose of the experiments performed was to determine the tolerance levels for Lemna Minor for cadmium chloride before death occurred, in an effort to determine the bioindicator status or bioremediator status of the species. To determine the concentration level that Lemna Minor could endure, preliminary experiments with a gradient of concentrations were performed. In the experiment proper, Lemna Minor was inserted into beakers containing 200 mL of solutions of cadmium chloride, 1 g/L, .5 g/L, .1 g/L, .05 g/L, .02 g/L .01 g/L, .005 g/L, and a control of 0.000 g/L. The plants were set on a 12 hour / 12 hour day/night cycle, and let proliferate, with solution levels maintained through resupply every other day. The qualitative measurements were collected and recorded every other day, while the number of living, affected, and dead plants was carefully recorded, and proliferation rates were also recorded. At the end of the experiment mortality rates were 100% above 20.0 parts per million, or approximately .02 g/L. Other plants proliferated and grew, though at noticeably less rate than the control, suggesting that even at very low levels of cadmium contamination the plants suffered from the effects of cadmium interference in their metabolism. This suggests an alarming susceptibility to cadmium in aquatic plants, and the potential applicability of Lemna Minor to the fields of biodetection.