Metals Samples Water Sediment Cd < MDL 1.03 ± 0.03 Co 1.23 ± 0.04 2.59 ± 0.05 Cu 0.53 ± 0.03 10.35 ± 0.52 Mn 0.86 ± 0.04 3.28 ± 0.18 Fe 1.32 ± 0.07 102.13 ± 1.30 Pb 0.26  ± 0.02 5.78 ± 0.15 Zn 2.51 ± 0.10 21.89 ± 1.22 Cr 0.15 ± 0.01 2.52 ± 0.06 Ni 0.95 ± 0.04 5.24 ± 0.24

Table 2: Levels of trace metals (average ± Sd, n = 3, in μg/g for sediment and mg/L for water) in Tendaho reservoir sediment and water samples.