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TABLE 5-INDOOR AND OUTDOOR AMBIENT AIR RESULTS SUMMARY TABLE <br /> CVCI -Discovery Investigation Work Plan <br /> Favorite Cleaners <br /> 622 E Charter Way <br /> Stockton, California 95206 <br /> Indoor Air Date Detected Chemicals (µg/m3) <br /> Sample ID <br /> Tetrachloroethene Trichloroethene 1,2-cis-DCA Vinyl Chloride <br /> IA-1 <br /> IA-2 <br /> IA-3 <br /> IA-4 <br /> IA-5 <br /> IA-6 <br /> IA-7 <br /> IA-8 <br /> IA-Duplicate <br /> UW AA-1 <br /> DW AA-2 <br /> CW AA-3 <br /> AA-Duplicate <br /> MS/MSD <br /> Screening Levels <br /> Notes: <br /> Indoor Air Screening Levels <br /> 1.California Department of Toxic Substances Control(DTSC)Human and Ecological Risk Office(HERO)Human Health Risk assessment(HHRA) <br /> Note 3,DTSC-modified Screening levels(DTSC-SLs),Table 3.Ambient Air, Commercial/Industrial,Cancer Endpoint(DTSC 2022) <br /> 2.DTSC HERO HHRA Note 3,DTSC-SLs,Table 3.Ambient Air,Commercial/Industrial,Noncancer Endpoint(DTSC 2022) <br /> 3.San Francisco Bay Regional Water Quality Control Board(SFBRWQCB)Commercial/Industrial Cancer Risk Indoor Air Environmental Screening <br /> Levels (SFBRWQCB 2019) <br /> 4.SFBRWQCB Commercial/Industrial NonCancer Hazard Indoor Air Environmental Screening Levels(SFBRWQCB 2019) <br /> 5.Environmental Protection Agency(EPA)Regional Screening Levels(RSLs),Composite Worker Ambient Air Table,Carcinogenic Target Risk of <br /> 1 E-06,November 2023 <br /> 6.EPA RSLs,Composite Worker Ambient Air Table, Noncancer Target Hazard Quotients of 1.0,November 2023 <br /> 7.Screening level defaults to DTSC Commercial/Industrial Soil Cancer Endpoint,then DTSC Commercial/Industrial Soil Noncancer Endpoint,then <br /> EPA RSL Carcinogenic Target Risk for Trichloroethene. <br /> 8.The Final Selected Indoor Air Screening Level is selected from a hierarchy of the following sources: 1.DTSC HERO HRRA Note 3 <br /> recommended screening levels for ambient air analytes(DTSC 2022), 2.SFBRWQCB Indoor Air ESLs(SFBRWQCB 2019)3.EPA RSL <br /> Composite Worker Air.The lower of the cancer and non-cancer screening levels for commercial/industrial receptors were considered. <br /> pg/m3=micrograms per cubic meter <br /> Green shaded cells signify that the detection is greater than the Final Selected Indoor Air Screening Level <br /> Blue shaded cells signify that the reporting limit as greater than the Final Selected Indoor Air Screening Level <br /> Bold number=Analyte detected above the laboratory reporting limit. Reporting limits can be found in laboratory reports in Appendix E. <br /> ND=not detected above corresponding reporting limit <br /> 1.2=not analyzed or not available <br />