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Regulatory Determinations for Priority Contaminants on the Second Drinking Water Contaminant Candidate List
- On this page
- The Second CCL Regulatory Determinations Schedule
- July 2008 Final Regulatory Determinations for Priority Contaminants on the second Contaminant Candidate List
The Safe Drinking Water Act (SDWA), as amended in 1996, directs the Environmental Protection Agency (EPA) to publish a list of contaminants (referred to as the Contaminant Candidate List, or CCL) to assist in priority-setting efforts. SDWA also directs the Agency to select five or more contaminants from the current CCL and determine whether or not to regulate these contaminants with a National Primary Drinking Water Regulation (NPDWR).
EPA published the second CCL (CCL 2) in 2005. In May 2007, the Agency published a Federal Register notice announcing and requesting comment on its preliminary determinations for 11 of the 51 CCL 2 contaminants. In July 2008, and after careful consideration of public comments, EPA published its final determination that no regulatory action is appropriate or necessary for the following eleven contaminants: boron: the dacthal mono- and di-acid degradates: 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE): 1,3-dichloropropene (Telone): 2,4-dinitrotoluene: 2,6-dinitrotoluene: s-ethyl propylthiocarbamate (EPTC): fonofos: terbacil: or 1,1,2,2-tetrachloroethane.
| Date | Regulatory Determination |
|---|---|
| September 2004 | Stakeholder meeting to provide a program update and to seek input from stakeholders on contaminants being considered for regulatory determinations. |
| May 2007 | Announcement of Preliminary Regulatory Determinations for Priority Contaminants on the Second Drinking Water Contaminant Candidate List |
| May - June 2007 | 60 day public comment period |
| July 2008 | Announcement of Final Regulatory Determinations for Priority Contaminants on the Second Drinking Water Contaminant Candidate List |
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July 2008 Final Regulatory Determinations for Priority Contaminants on the second Contaminant Candidate List
Federal Register Notice
- Pre-publication of the July 2008 Federal Register Notice PDF (42pp, 227K About PDF)
EPA Administrator, Stephen L. Johnson signed the following notice on July 24, 2008, and EPA is submitting it for publication in the Federal Register. While we have taken steps to ensure the accuracy of this pre-publication version, it is not the official version. Please refer to the official version in a forthcoming Federal Register publication, or on GPO's website at http://www.gpoaccess.gov/fr/index.html. - Fact
Sheet: Announcement of Final Regulatory Determinations for Priority Contaminants
on the Drinking Water Contaminant Candidate List PDF (4pp, 74K, About PDF)
EPA 815-F-08-005
Support Documents for Regulatory Determinations Notice
- Regulatory Determinations Support Document for Selected Contaminants from the Second Drinking Water Contaminant Candidate List (CCL 2) PDF (497pp, 9M)
EPA 815-R-08-012
- Chapter 1: Introduction PDF (26pp, 518K)
- Chapter 2: Evaluation of Health and Occurrence Data PDF (30pp, 5M)
- Chapters 3-11 are linked below by contaminant
- Chapter 12: Metolachlor PDF (42pp, 685K)
- Chapter 13: MTBE PDF (76pp, 1M)
- Chapter 14: Microorganisms on the CCL 2 PDF (34pp, 245K)
- The Analysis of Occurrence Data from the First Unregulated Contaminant Monitoring Regulation (UCMR 1) in Support of Regulatory Determinations for the Second Drinking Water Contaminant Candidate List PDF (278pp, 24M)
EPA 815-R-08-013 - The Analysis of Occurrence Data from the Unregulated Contaminant Monitoring (UCM) Program and National Inorganics and Radionuclides Survey (NIRS) in Support of Regulatory Determinations for the Second Drinking Water Contaminant Candidate List PDF (120pp, 6M)
EPA 815-R-08-014
Boron
- Chapter 3: Boron PDF (29pp, 571K)
- Health Effects Support Document for Boron PDF (136pp, 4M)
EPA 822-R-08-002 - Health Advisory for Boron PDF (65pp, 330K)
EPA 822-R-08-013- Summary From the Health advisory for Boron PDF (3pp, 30K)
EPA 822-S-08-003
- Summary From the Health advisory for Boron PDF (3pp, 30K)
Dacthal mono- and di-acid degradates
- Chapter 4: DCPA Mono- and Di-Acid Degradates PDF (39pp, 1M)
- Health Effects Support Document for Dacthal Degradates: Tetrachloroterephthalic Acid (TPA) and Monomethyl Tetrachloroterephthalic Acid (MTP) PDF (89pp, 3M)
EPA 822-R-08-0005 - Health Advisory for Dacthal Degradates: Tetrachloroterephthalic Acid (TBA) and Monomethyl Tetrachloroterephthalic Acid (MTP) PDF (47pp, 221K)
EPA 822-R-08-011
DDE (1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene)
- Chapter 5: DDE PDF (31pp, 707K)
- Health Effects Support Document for 1,1-Dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE) PDF (128pp, 1.21M)
EPA 822-R-08-003
Telone (1,3-dichloropropene)
- Chapter 6: 1,3-Dichloropropene PDF (41pp, 1M)
- Health Effects Support Document for 1,3-Dichloropropene PDF (142pp, 6M)
EPA 822-R-08-008
2,4-dinitrotoluene, 2,6-dinitrotoluene
- Chapter 7: 2,4- and 2,6-Dinitrotoluene PDF (41pp, 735K)
- Health Advisory for 2,4 - and 2,6-Dinitrotoluene PDF (97pp, 566K)
EPA 822-R-08-010
EPTC (s-ethyl propylthiocarbamate)
- Chapter 8: EPTC PDF (27pp, 572K)
- Health Effects Support Document for S-Ethyl dipropylthiocarbamate (EPTC) PDF (56pp, 1M)
EPA 822-R-08-006
Fonofos
- Chapter 9: Fonofos PDF (26pp, 484K)
- Health Effects Support Document for Fonofos PDF (58pp, 1M)
EPA 822-R-08-009
Terbacil
- Chapter 10: Terbacil PDF (28pp, 550K)
- Health Effects Support Document for Terbacil PDF (62pp, 2M)
EPA 822-R-08-004
1,1,2,2-tetrachloroethane
- Chapter 11: 1,1,2,2-Tetrachloroethane PDF (38pp, 973K)
- Health Effects Support Document for 1,1,2,2-Tetrachloroethane PDF (144pp, 3M)
EPA 822-R-08-007 - Health Advisory for 1,1,2,2-Tetrachloroethane PDF (50pp, 270K)
EPA 822-R-08-012- Summary From the Health Advisory for 1,1,2,2-Tetrachloroethane PDF (50pp, 24K)
EPA 822-S-08-001
- Summary From the Health Advisory for 1,1,2,2-Tetrachloroethane PDF (50pp, 24K)