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Analysisof Occurrence Data from the First Unregulated Contaminant Monitoring Program (UCMR 1) in Support of Regulatory Determinations for the Second Drinking Water Contaminant Candidate List (CCL 2), June 2008.
| 题名： | Analysisof Occurrence Data from the First Unregulated Contaminant Monitoring Program (UCMR 1) in Support of Regulatory Determinations for the Second Drinking Water Contaminant Candidate List (CCL 2), June 2008. |
| 关键词： | potble water, health effects, toxicity, water systems, chemical compounds, contamination, contaminants, monitoring, sampling, reporting, data analysis, unregulated contaminant monitoring regulation(ucmr), drinking water contaminant candidate list, contami |
| 摘要： | Contaminant occurrence data collected under the First Unregulated Contaminant Monitoring Regulation (UCMR 1) are nationally representativepublic water system monitoring results. This UCMR 1 monitoring was conducted for select unregulated contaminants in drinking water under the authority of Safe Drinking Water Act. The UCMR 1 program specified that a statistically representative group of small public water systems (serving between 25 and 10,000 persons) and all large public water systems (serving more than 10,000 persons) were required to conduct monitoring and submit drinking water sample results for a list of specified unregulated contaminants from the second Contaminant CandidateList (CCL 2). This report presents the United States Environmental Protection Agency (EPA) analysis of the national occurrence of unregulated contaminants on the CCL 2 that were monitored in public water systems (PWSs) under the UCMR 1. Detailed occurrence analyses are presented for ten contaminants evaluated during EPAs CCL 2 regulatory determinations: the mono- and di-acid degradates of dimethyl tetrachloroterephthalate (DCPA, also known as dacthal), 1,3- dichloropropene, 1,1-dichloro-2,2-bis (p-chlorophenyl)ethylene (DDE), 2,4-dinitrotoluene, 2,6- dinitrotoluene, s-ethyl dipropylthiocarbamate (EPTC), fonofos, methyl tertiary butyl ether (MTBE), and terbacil. Less detailed occurrence summaries are presented for several other UCMR 1 contaminants as well. This report also describes the sources, quality, management, and characteristics of the UCMR 1 data. / Supplementary Notes: See also PB2007-109897. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0822；278p |
| 报告类型： | 科技报告 |
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