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CCL 4 Technical Support Documents

EPA developed several technical support documents it utilized to produce the Final CCL 4. These documents include a:

Summary of nominations received from the public for CCL 4.
Listing and description of data sources used to evaluate the nominated contaminants.
Description of the process used to screen and evaluate the nominated contaminants for potential inclusion on the Preliminary Contaminant Candidate List.
Detailed contaminant information summary sheet for each contaminant on the Final CCL 4.

Read the technical support documents for the Final CCL 4.

Summary of Nominations for the Fourth Contaminant Candidate List (CCL 4) (pdf) (952.2 KB, November 2016, 815-R-16-006)
Data Sources for the Fourth Contaminant Candidate List (CCL 4) (pdf) (260.57 KB, November 2016, 815-R-16-007)
Screening Document for the Fourth Preliminary Contaminant Candidate List (PCCL4) (pdf) (241.93 KB, November 2016, 815-R-16-008)
Contaminant Information Sheets (CISs) for the Final Fourth Contaminant Candidate List (CCL 4) (pdf) (4.88 MB, November 2016, 815-R-16-003)