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Human and Ecological Risk Assessment - Earthjustice

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CCWList of AcronymsAcronymDefinitionID identificationIEM Indirect Exposure MethodologyIRIS Integrated <strong>Risk</strong> Information SystemIWEM Industrial Waste Evaluation ModelLADD lifetime average daily doseLDS leak detection systemLF l<strong>and</strong>fillLOAEL lowest observed adverse exposure levelMCL maximum concentration limitMn manganeseMINTEQA2 a geochemical assessment model for environmental systemsMo molybdenumMRL minimal risk levelMSW municipal solid wasteNinickelNOAEL no observed adverse exposure levelNPDES National Pollutant Discharge Elimination SystemORD Office of Research <strong>and</strong> Development (EPA)Pb leadPCS Permit Compliance SystempH a measure of hydrogen ion activityRCRA Resource Conservation <strong>and</strong> Recovery ActRCRA Resource Conservation <strong>and</strong> Recovery ActRfD reference doseRME reasonable maximum exposureSAB Science Advisory Board (EPA)Sb antimonySD st<strong>and</strong>ard deviationSeseleniumSIsurface impoundmentSrstrontiumSW solid wasteSWTSS surface water total suspended solidsTCLP toxicity characteristic leaching procedureTlthalliumTL3 trophic level 3TL4 trophic level 4TSS total suspended solidsUF uncertainty factorUSGS U.S. Geological SurveyVvanadiumWMU waste management unitZn zincApril 2010–Draft EPA document.xii

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