Laserfiche WebLink
ARCADIS <br /> 3.5.3 Analytical Result Comparison Criteria <br /> Select subsurface samples will be collected and placed on "Hold" at the laboratory <br /> pending results of the initial surface sample analyses. Samples placed on hold may be <br /> analyzed if concentrations of the chemicals of potential concern (COPCs) are detected <br /> at or above the comparison criteria detailed in Table C. <br /> Table C. Comparison Criteria for Soil Sample Analytical Results <br /> Constituent Screening Level CHHSL or ESL z <br /> (mg/kg) Residential Land Use <br /> Chromium III 100,000 Residential CHHSL <br /> Chromium VI 17 Residential CHHSL <br /> STLC Lead 5.0 (mg/L) Title 22 <br /> Title-22 CAM Metals -- Analytes Specific <br /> OCPs -- Analytes Specific <br /> PCBs 0.089 Residential CHHSL <br /> VOCs -- Analytes Specific <br /> TPH -- Analytes Specific <br /> PAHs -- Analytes Specific <br /> SVOCs -- Analytes Specific <br /> OPPs -- Analytes Specific <br /> Herbicides -- Analytes Specific <br /> Dioxins/Furans -- Analytes Specific <br /> PH -- -- <br /> N otes: <br /> -- = Not Used As Comparison Criteria <br /> mg/kg = milligrams per kilogram <br /> mg/L = milligrams per liter <br /> 1 = DTSC suggested value to be included with a comparison of the site data to background <br /> concentrations and a statistical evaluation to evaluate if site data are within background. <br /> 2 = Cal/EPA, Office of Environmental Health Hazard Assessment(OEHHA), California <br /> Human Health Screening Levels(CHHSLs)for residential land use (OEHHA 2005/2009) <br /> or San Francisco Bay Regional Water Quality Control Board, Screening for <br /> Environmental Concerns at Site with Contaminated Soil and Groundwater(ESLs), <br /> Interim Final November 2007 and Revised May 2008. <br /> Page 22 wp-PEA-Gordon-Ju110-RV009808.doc: <br />