National Recommended Water Quality Criteria - Organoleptic Effects
| Pollutant | CAS Number | Organoleptic Effect Criteria (µg/L) |
|---|---|---|
| Acenaphthene | 83329 | 20 |
| Color | — | NP |
| Iron | 7439896 | 300 |
| Monochlorobenzene | 108907 | 20 |
| Tainting Substance | — | NP |
| 3-Chlorophenol | — | 0.1 |
| 4-Chlorophenol | 106489 | 0.1 |
| 2,3-Dichlorophenol | — | 0.04 |
| 2,5-Dichlorophenol | — | 0.5 |
| 2,6-Dichlorophenol | — | 0.2 |
| 3,4-Dichlorophenol | — | 0.3 |
| 2,4,5-Trichlorophenol | 95954 | 1 |
| 2,4,6-Trichlorophenol | 88062 | 2 |
| 2,3,4,6-Tetrachlorophenol | — | 1 |
| 2-Methyl-4-Chlorophenol | — | 1800 |
| 3-Methyl-4-Chlorophenol | 59507 | 3000 |
| 3-Methyl-6-Chlorophenol | — | 20 |
| 2-Chlorophenol | 95578 | 0.1 |
| Copper | 7440508 | 1000 |
| 2,4-Dichlorophenol | 120832 | 0.3 |
| 2,4-Dimethylphenol | 105679 | 400 |
| Hexachlorocyclopentadiene | 77474 | 1 |
| Manganese | 7439965 | |
| Nitrobenzene | 98953 | 30 |
| Pentachlorophenol | 87865 | 30 |
| Phenol | 108952 | 300 |
| Zinc | 7440666 | 5000 |
These criteria are based on organoleptic (taste and odor) effects. Because of variations in chemical nomenclature systems, this listing of pollutants does not duplicate the listing in Appendix A of 40 CFR Part 423 (9 pp, 222 K, About PDF)