| Hg (0.001)* | Cu (1.00) | Cd (0.003) | Fe (0.3) | Zn (5) | Pb (0.01) | Ni (0.02) | Cr (0.05) | Se (0.01) | |
| Ikanga 1 River | 0.0012 | 0.00012 | 0.00098 | 0.0007 | N.D. | N.D. | 0.00058 | 0.0058 | 0.0014 |
| Ikanga torrent River | 0.0003 | 0.00012 | N.D. | 0.0003 | 0.0004 | N.D. | 0.00055 | 0.0223 | 0.0017 |
| San nom River | 0.00195 | 0.00012 | 0.00064 | 0.0007 | 0.0074 | N.D. | 0.00055 | 0.0053 | 0.0018 |
| Kisaka River | 0.0012 | 0.00004 | N.D. | 0.0008 | N.D. | 0.00092 | 0.00042 | N.D. | 0.0029 |
| Katundu River | N.D. | 0.00004 | N.D. | 0.0007 | N.D. | 0.00002 | 0.00053 | 0.0075 | 0.0025 |
| Murhamba 2 River | 0.00045 | N.D. | 0.00081 | N.D. | 0.0039 | 0.00029 | 0.00039 | 0.0057 | 0.0014 |
| Rwindi River | N.D. | 0.00004 | N.D. | 0.0008 | 0.0039 | 0.00038 | 0.00055 | 0.0044 | 0.0012 |
| Batuku fountain | N.D. | N.D. | 0.00013 | 0.0008 | 0.0004 | 0.000137 | 0.00061 | 0.0054 | 0.0014 |
| Kavignonge spring | N.D. | 0.00004 | 0.00021 | 0.0029 | 0.0039 | 0 | 0.00055 | 0.0085 | 0.0013 |
| Kinawa spring | N.D. | 0.00012 | 0.00081 | 0.0007 | N.D. | 0.00011 | 0.00045 | 0.0074 | 0.0014 |
| Kavasembe River | 0.00045 | 0.00004 | 0.00038 | 0.0022 | N.D. | 0.00038 | 0.00042 | 0.0014 | 0.0012 |
| Apres Muko River | N.D. | 0.0002 | 0.00047 | 0.0004 | 0.0074 | 0.00043 | 0.00039 | 0.0055 | 0.0012 |
| Kalimbuta River | 0.00045 | N.D. | 0.00064 | 0.0005 | N.D. | 0.00038 | 0.00039 | 0.0063 | 0.0013 |
| Kasondo River | N.D. | N.D. | 0.00064 | 0.0005 | N.D. | 0.00025 | 0.00039 | 0.007 | N.D. |
| Kasondo Spring | 0.00045 | 0 | 0.00047 | 0 | 0.0039 | 0.00092 | 0.00055 | 0.0064 | 0.0012 |
| Kavutika River | N.D. | N.D. | N.D. | 0.0014 | 0.0004 | 0.00029 | 0.00058 | 0.0058 | 0.0009 |
| Kisaka River | 0.0003 | 0.00012 | 0.00047 | 0.0007 | 0.0039 | 0.00025 | 0.00058 | 0.0093 | 0.0014 |
| Kyalimbwa River | N.D. | 0.00004 | N.D. | 0.0006 | 0.0039 | 0.00029 | 0.00055 | 0.0093 | 0.0016 |
| Kyavinyonge River | N.D. | 0.00012 | 0.00047 | 0.0028 | 0.0004 | 0.00002 | 0.00058 | 0.0073 | N.D. |
| Kyavinyonge Spring | 0.00045 | N.D. | N.D. | 0.0003 | 0.0004 | 0.00011 | 0.00045 | N.D. | 0.0013 |
| Lac 10 m | 0.0012 | 0.00004 | 0.00047 | 0.0006 | 0.0039 | 0.00011 | 0.0005 | 0.0063 | 0.0045 |
| Lac 200 m | 0.0003 | 0.00012 | 0.00064 | 0.0005 | 0.0039 | 0.00002 | 0.00039 | 0.0057 | 0.0028 |
| Lac 500 m | N.D. | 0.00012 | N.D. | 0.0004 | 0.0004 | N.D. | 0.00053 | 0.0068 | 0.0017 |
| Biodi ground water | 0.00045 | N.D. | 0.00047 | 0.0005 | 0.0004 | 0.0043 | 0.00053 | 0.0053 | 0.0013 |
| Lunyasenge River | 0.00105 | 0.00012 | 0.00064 | 0.0007 | 0.0004 | 0.00025 | 0.00053 | 0.008 | 0.002 |
| Murhamba River | N.D. | N.D. | 0.00038 | 0.0005 | 0.0039 | 0.00029 | 0.00039 | 0.007 | 0.0012 |
| Musenda River | 0.0003 | N.D. | N.D. | 0.0029 | 0.0074 | 0.00011 | 0.00039 | 0.012 | 0.0014 |
| Mutikili River | 0.00045 | N.D. | 0.00064 | 0.0002 | 0.0039 | N.D. | 0.00055 | 0.0064 | 0.0012 |
| Muwe River | 0.0012 | 0.00004 | 0.00021 | 0.0025 | 0.0074 | 0.00047 | 0.00042 | 0.0098 | 0.0012 |
| Kinawa River | 0.00045 | 0.00012 | 0.00047 | 0.0005 | 0.0031 | 0.0002 | 0.0005 | 0.0064 | 0.0015 |
| Rutshuru Lb River | 0.0012 | N.D. | 0.00047 | 0.0007 | 0.0004 | 0.00025 | 0.00053 | 0.0068 | 0.0015 |
| Rwindi River | N.D. | 0.00012 | 0.00081 | 0.0007 | 0.0039 | N.D. | 0.00058 | 0.0054 | 0.0015 |
| Semliki River | 0.00195 | 0.00004 | 0.00047 | 0.0005 | 0.0039 | 0.00016 | 0.0005 | 0.0061 | 0.0015 |
| Singamwambe River | 0.0012 | 0 | 0.00064 | 0.0013 | 0.0004 | 0.00029 | 0.00053 | 0.0054 | 0.0014 |
| Tsere River | 0.00045 | N.D. | 0.00047 | N.D. | 0.0004 | 0.00038 | 0.00061 | 0.0054 | 0.0012 |
| Vitshumbi River | 0.00045 | 0.00004 | 0.00081 | 0.0016 | 0.0039 | 0.00029 | 0.00042 | N.D. | 0.0012 |