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Contaminant Candidate List (CCL) and Regulatory Determination

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.
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