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Designated Levels for Constituents in Soils and Cleanup Goals for Groundwater <br />Schmiedt Property/Former Tri-Ag Services, Inc. Facility, Manteca <br />Chemical <br />Range of Concentrations in <br />Soil <br />Range of Concentrations in <br />Groundwater <br />Laboratory <br />Quantitation <br />Limits <br />Water Quality <br />Goal1'2 <br />Basis for Goal <br />Attenuation <br />Factor <br />Leachability <br />Factor <br />Total Designated <br />Levee <br />Pesticides irganochlorine <br />4,4-DDD ND (<5.0) -28 ug/kg ND (<0.05) ug/1 0.02 ug/I 0.15 .ug/1 <br />One-in-a-Million Incremental Cal/EPA <br />Cancer Potency Factor as a Drinking <br />Water Level <br />100 10 150 ug/kg <br />4,4-DDE 6 - 210 ug/kg ND (<0.05) ughI 0.01 ugh1 0.1 ugh <br />One-in-a-Million Incremental Cal/EPA <br />Cancer Potency Factor as a Drinking <br />Water Level <br />100 10 100 ug/kg <br />4,4-DDT 10- 390 ug/kg ND (<0.05) ugh 0.01 ugh 0.1 ugh <br />One-in-a-Million Incremental Cal/EPA <br />Cancer Potency Factor as a Drinking <br />Water Level <br />100 10 100 ug/kg <br />Endosulfan (land II) ND (<5.0) -6 ug/kg ND (<0.05) ugh 0.02 ugh 42 ug/1 <br />USEPA IRIS Reference Dose as a <br />Drinking Water Level <br />100 10 42,000 ug/kg <br />Dieldrin ND (<5) - 11 ug/kg ND (<0.05) ugh 0.01 ugh 0.0022 ugh <br />California State Action Level for <br />Toxicity (DHS) <br />100 10 10 ug/kg <br />Carbamate <br />Oryzalin ND (<20) - 28 ug/kg ND (<1.0) ug/1 10 ughI 35 ug/1 <br />USEPA IRIS Reference Dose as a <br />Drinking Water Level <br />10 10 3,500 ug/kg <br />Key: <br />1 Reference: A Compilation of Water Quality Goals, Regional Water Quality Control Board, Central Valley Region, year 2000 edition. <br />2 When Water Quality Goals or Designated Levels are lower than the method detection limit for the constituent, the method detection limit becomes the cleanup goal. <br />DHS Department of Health Services <br />MCL Maximum Contaminant Level <br />NA Not analyzed <br />ND Not detected <br />PHG Public Health Goal <br />mg/kg milligrams per kilogram <br />ug/kg micrograms per kilogram <br />mgh milligrams per liter <br />ugh micrograms per liter <br />• <br />•