October 4, 2018: EPA soliciting nominations for Contaminant Candidate List 5 (CCL5). More information here https://www.epa.gov/ccl/contaminant-candidate-list-5-ccl-5 The final list of not more than 30 contaminants selected will be incorporated into the Unregulated Contaminant Monitoring Rule 5 (effective 2022). Federal Register Notice
