This page includes the occurrence analysis support documents for Regulatory Determination 1.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Analysis of National Occurrence of the 1998 Contaminant Candidate List (CCL) Regulatory Determination Priority Contaminants in Public Water Systems (PDF)(140 pp, 7 MB)
- Appendices - Analysis of National Occurrence of the 1998 Contaminant Candidate List (CCL) Regulatory Determination Priority Contaminants in Public Water Systems (PDF)(49 pp, 359 K)