| HV | Short Term Use (µg/L) | Long Term Use (µg/L) | ||||||
| Ideal | Safe | Risky | Polluted | Ideal | Safe | Risky | Polluted | |
| Cd | <2.5 | 2.5 - 5 | 5 - 50 | >50 | <0.5 | 0.5 - 1 | 1 - 10 | >10 |
| Co | <250 | 250 - 500 | 500 - 5000 | >5000 | <2.5 | 2.5 - 5 | 5 - 50 | >50 |
| Cr | <50 | 50 - 100 | 100 - 1000 | >1000 | <5 | 5 - 10 | 10 - 100 | >100 |
| Cu | <250 | 250 - 500 | 500 - 5000 | >5000 | <10 | 10 - 20 | 20 - 200 | >200 |
| Fe | <1000 | 1000 - 2000 | 2000 - 20,000 | >20,000 | <250 | 250 - 500 | 500 - 5000 | >5000 |
| Li | <125 | 125 - 250 | 250 - 2500 | >2500 | <125 | 125 - 250 | 250 - 2500 | >2500 |
| Mn | <500 | 500 - 1000 | 1000 - 10,000 | >10,000 | <10 | 20 - 10 | 20 - 200 | >200 |
| Ni | <100 | 100 - 200 | 200 - 2000 | >2000 | <10 | 10 - 20 | 20 - 200 | >200 |
| Pb | <500 | 500 - 1000 | 1000 - 10,000 | >10,000 | <250 | 250 - 500 | 500 - 5000 | >5000 |
| Zn | <500 | 500 - 1000 | 1000 - 10,000 | >10,000 | <100 | 100 - 200 | 200 - 2000 | >2000 |