02721oam 2200457 a 450 991069785290332120090803153213.0(CKB)5470000002392454(OCoLC)260357052(EXLCZ)99547000000239245420081006d2008 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierThe analysis of occurrence data from the First Unregulated Contaminant Monitoring Regulation (UCMR 1) in support of regulatory determinations for the Second Drinking Water Contaminant Candidate List (CCL 2)[electronic resource] /United States Environmental Protection Agency, Office of Water[Washington, D.C.] :U.S. Environmental Protection Agency, Office of Water,[2008]1 online resource (278 unnumbered pages) illustrations, mapsTitle from title screen (EPA, viewed Oct 6, 2008)."June 2008.""EPA 815-R-08-013."Includes bibliographical references.Introduction -- Regulatory background -- Two-stage analytical approach for small and large systems -- Analytical tools -- UCMR 1 Program overview -- UCMR 1 design and implementation -- Large systems (Serving >10,000 people) -- Small systems (Serving <10,000 people) -- UCMR 1 data description -- Data overview -- Data management -- Assessments of data completeness and representativeness -- Additional data management considerations -- Description of Stage 1 analytical methodology -- Stage 1 analysis -- Additional considerations for Stage 1 analysis -- Sample-point-level analyses -- Description of Stage 2 analytical methodology -- Stage 1 occurrence estimates -- Stage 2 occurrence estimates: an example -- Spatial and graphical assessments of contaminants .Analysis of occurrence data from the First Unregulated Contaminant Monitoring Regulation Drinking waterContaminationGovernment policyUnited StatesBoronMetolachlorButyl methyl etherDrinking waterContaminationGovernment policyBoron.Metolachlor.Butyl methyl ether.United States.Environmental Protection Agency.Office of Water.EJEEJEGPOBOOK9910697852903321The analysis of occurrence data from the First Unregulated Contaminant Monitoring Regulation (UCMR 1) in support of regulatory determinations for the Second Drinking Water Contaminant Candidate List (CCL 2)3479870UNINA