

| Fluoride | Arsenic | Lead (as Pb) | Cadmium |
| 2.26 ppm | 0.0114 ppm | 0.0028 ppm | 0.0117 ppm |


| Fluoride | Arsenic | Lead (as Pb) | Cadmium |
| 0.95 ppm | 0.0010 ppm | 0.0012 ppm | 0.0007 ppm |

| Fluoride | Arsenic | Lead (as Pb) | Cadmium |
| 0.95 ppm | 0.0115 ppm | 0.0158 ppm | 0.0007 ppm |

| Mercury | Arsenic | Lead (as Pb) | Cadmium |
| 0.1 ppm↓ | 1.0 ppm↓ | 0.2 ppm↓ | 1.0 ppm↓ |

| Mercury | Arsenic | Lead (as Pb) | Cadmium |
| 0.1 ppm↓ | 1.0 ppm↓ | 0.2 ppm↓ | 1.0 ppm↓ |