Range (ppm) | UoA | ATS | GPDS | AG | EIT | MC | PoM | MMR | ZA | Total | % |
| 1 | 1 | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 7 | 4 |
>0 ≤ 1000 | 3 | 4 | 2 | 1 | 1 | 1 | 2 | 5 | 0 | 19 | 11 |
>1000 ≤ 10,000 | 2 | 3 | 2 | 2 | 2 | 7 | 2 | 2 | 2 | 24 | 15 |
>10,000 ≤ 20,000 | 7 | 2 | 6 | 14 | 3 | 6 | 4 | 2 | 4 | 49 | 29 |
>20,000 ≤ 30,000 | 11 | 3 | 7 | 4 | 0 | 0 | 1 | 0 | 3 | 29 | 17 |
>30,000 ≤ 40,000 | 2 | 2 | 3 | 0 | 0 | 2 | 2 | 0 | 0 | 11 | 6 |
>40,000 ≤ 50,000 | 3 | 1 | 4 | 0 | 0 | 1 | 0 | 0 | 1 | 10 | 6 |
>50,000 ≤ 60,000 | 2 | 0 | 2 | 1 | 0 | 0 | 3 | 0 | 1 | 9 | 5 |
>60,000 ≤ 70,000 | 4 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 9 | 5 |
>70,000 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 2 | 6 | 3 |
Total | 36 | 20 | 27 | 23 | 6 | 22 | 14 | 10 | 15 | 173 | 100 |