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CCL 2 List and Regulatory Determinations
On February 23, 2005, EPA announced the second Drinking Water Contaminant Candidate List (CCL) and our efforts to expand and strengthen the underlying CCL listing process to be used for future CCLs.
- On this page
Other resources
- Federal Register Notice - Final Federal Register posted on February 24, 2005.
- Fact Sheet (PDF) (6 pp, 106 K) (About PDF)
EPA 815-F-05-001 - CCL 2 Regulatory Determinations
- Related Activities & Dates - This page includes key meetings, Federal Register Notices and dates related to the CCL.
Microbial Contaminant Candidates
| Microbial Contaminants |
|---|
| Adenoviruses |
| Aeromonas hydrophila |
| Caliciviruses |
| Coxsackieviruses |
| Cyanobacteria (blue-green algae), other freshwater algae, and their toxins |
| Echoviruses |
| Helicobacter pylori |
| Microsporidia (Enterocytozoon & Septata) |
| Mycobacterium avium intracellulare (MAC) |
Chemical Contaminant Candidates
| Chemical Contaminant | Chemical Abstract Service Registration NumberCASRN1 |
|---|---|
| 1,1,2,2-tetrachloroethane | 79-34-5 |
| 1,2,4-trimethylbenzene | 95-63-6 |
| 1,1-dichloroethane | 75-34-3 |
| 1,1-dichloropropene | 563-58-6 |
| 1,2-diphenylhydrazine | 122-66-7 |
| 1,3-dichloropropane | 142-28-9 |
| 1,3-dichloropropene | 542-75-6 |
| 2,4,6-trichlorophenol | 88-06-2 |
| 2,2-dichloropropane | 594-20-7 |
| 2,4-dichlorophenol | 120-83-2 |
| 2,4-dinitrophenol | 51-28-5 |
| 2,4-dinitrotoluene | 121-14-2 |
| 2,6-dinitrotoluene | 606-20-2 |
| 2-methyl-Phenol (o-cresol) | 95-48-7 |
| Acetochlor | 34256-82-1 |
| Alachlor ESA & other acetanilide pesticide degradation products | N/A |
| Aluminum | 7429-90-5 |
| Boron | 7440-42-8 |
| Bromobenzene | 108-86-1 |
| DCPA mono-acid degradate | 887-54-7 |
| DCPA di-acid degradate | 2136-79-0 |
| DDE | 72-55-9 |
| Diazinon | 333-41-5 |
| Disulfoton | 298-04-4 |
| Diuron | 330-54-1 |
| EPTC (s-ethyl-dipropylthiocarbamate) | 759-94-4 |
| Fonofos | 944-22-9 |
| p-Isopropyltoluene (p-cymene) | 99-87-6 |
| Linuron | 330-55-2 |
| Methyl bromide | 74-83-9 |
| Methyl-t-butyl ether (MTBE) | 1634-04-4 |
| Metolachlor | 51218-45-2 |
| Molinate | 2212-67-1 |
| Nitrobenzene | 98-95-3 |
| Organotins | N/A |
| Perchlorate | 14797-73-0 |
| Prometon | 1610-18-0 |
| RDX | 121-82-4 |
| Terbacil | 5902-51-2 |
| Terbufos | 13071-79-9 |
| Triazines & degradation products of triazines | including, but not limited to Cyanazine 21725-46-2 and atrazine-desethyl 6190-65-4 |
| Vanadium | 7440-62-2 |
Notes
1Chemical Abstract Service Registration Number (CASRN#) - Chemical abstract service registry numbers are used in reference works, databases, and regulatory compliance documents by many organizations around the world to identify substances with a standardized name.