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1 SAP/QAPP Addendum <br /> O Lodi-125 N Stockton <br /> Final <br /> March 24,2025 <br /> SITE-SPECIFIC QAPP WORKSHEET #15 <br /> PROJECT SCREENING LEVELS AND LABORATORY-SPECIFIC DETECTION/QUANTITATION LIMITS <br /> VOCs in Soil Gas <br /> CAS Project Screening Levels (µ /m3 a Laboratory <br /> Analyte Number EPA VISLh RWQCB Tier 1 ESL Reporting Limit <br /> Commercial Soil Gas Residential Soil Gasf (µg/m3)c <br /> Chloroethane 75-00-3 584,000 139,000 347,600 11.6 <br /> Chloroform 67-66-3 17.8 4.07 4.1 5.3 <br /> Chloromethane 74-87-3 13,100 3,130 3,100 21.9 <br /> cis-1,2-Dichloroethene 156-59-2 5,840 1,390 278 4.4 <br /> cis-1,3-Dichloro ro ene 10061-01-5 NC NC NC 5.0 <br /> so ro lbenzene (cumene) 98-82-8 58,400 13,900 NC 5.3 <br /> C clohexane 110-82-7 876,000 209,000 NC 3.7 <br /> ibromochloromethane 124-48-1 NC NC NC 9.2 <br /> thylbenzene 100-41-4 164 37.4 37.4 4.8 <br /> e tane 142-82-5 58,400 13,900 NC 4.4 <br /> exachlorobutadiene 87-68-3 18.6 4.25 4.3 47 <br /> Hexane 110-54-3 102,000 24,300 NC 3.9 <br /> m,p-Xylene 179601-23-1 NC NC NC 9.5 <br /> Methyl tert-butyl ether 1634-04-4 1,570 360 360 15.8 <br /> Methylene chloride 75-09-2 40,900 3,380 33.8 7.6 <br /> Naphthalene 91-20-3 12 2.75 2.8 11.5 <br /> o-X lene 95-47-6 14,600 3,480 NC 4.8 <br /> Styrene 100-42-5 146,000 34,800 31,300 4.6 <br /> etrachloroethene 127-18-4 1,570 360 15.3 7.4 <br /> etrah drofuran 109-99-9 292,000 69,500 NC 3.3 <br /> Toluene 108-88-3 730,000 174,000 10,400 8.3 <br /> trans-1,2-Dichloroethene 156-60-5 5,840 1,390 2,800 4.4 <br /> trans-l,3-Dichloro ro ene 10061-02-6 NC NC NC 5.0 <br /> richloroethene 79-01-6 99.7 15.9 15.9 5.9 <br /> [Vinyl Chloride 75-01-4 92.9 5.59 0.32 2.8 <br /> 35 <br />