EPA developed several technical support documents it utilized to produce the Final CCL 4. These documents include a:
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Summary of nominations received from the public for CCL 4.
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Listing and description of data sources used to evaluate the nominated contaminants.
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Description of the process used to screen and evaluate the nominated contaminants for potential inclusion on the Preliminary Contaminant Candidate List.
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Detailed contaminant information summary sheet for each contaminant on the Final CCL 4.
Read the technical support documents for the Final CCL 4.
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- Summary of Nominations for the Fourth Contaminant Candidate List (CCL 4) (PDF)(75 pp, 975 K, November 2016, 815-R-16-006)
- Data Sources for the Fourth Contaminant Candidate List (CCL 4) (PDF)(32 pp, 267 K, November 2016, 815-R-16-007)
- Screening Document for the Fourth Preliminary Contaminant Candidate List (PCCL4) (PDF)(22 pp, 248 K, November 2016, 815-R-16-008)
- Contaminant Information Sheets (CISs) for the Final Fourth Contaminant Candidate List (CCL 4) (PDF)(337 pp, 5 MB, November 2016, 815-R-16-003)