| Petroleum Hydrocarbon Fraction | Non-Cancer Reference Dose mg/kg/day (ODEQ 2003) | Mushroom (SEO) (mg/kg) |
| Aliphatic > C8 - C10 | 0.3 | Not detected |
| Aliphatic > C10 - C12 | 0.3 | Not detected |
| Aliphatic > C12 - C16 | 0.3 | Not detected |
| Aliphatic > C16 - C21 | 2 | 0.28 - 1.98 |
| Aliphatic > C21 - C34 | 2 | 0.74 - 2.72 |
| Aromatic > C8 - C10 | 0.06 | Not detected |
| Aromatic > C10 - C12 | 0.06 | 0.22 - 0.26 |
| Aromatic > C12 - C16 | 0.06 | 0.06 - 0.22 |
| Aromatic > C16 - C21 | 0.03 | Not detected |
| Aromatic > C21 - C35 | 0.03 | 0.26 - 0.54 |
| n-Hexane | 0.05 | Not detected |
| Benzene | 0.008 | Not detected |
| Naphthalene | 0.0008 | Not detected |