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P rove ra <br />Analytical Laboratories, Inc. <br />EPA 8260B QA -QC Report <br />EPA 8015M QA -QC Report <br />CLIENT: E2C Remediation <br />233 Technology Way Suite? <br />Rocklin, CA 95765 <br />Projects Covered by this QA -QC <br />Analysis Date: <br />Matrix: <br />BFB: <br />Internal Standards <br />Results <br />Benzene, fluoro <br />50.0 <br />Benzene -d5, chloro- <br />50.0 <br />1,4 -Dichlorobenzene -d4 <br />50.0 <br />Surrogate Standards <br />47.8 <br />Methane, dibromofluoro- <br />60.4 <br />1,2-Dichloroethane-d4 <br />64.0 <br />Toluene -d8 <br />51.5 <br />p-Bromofluorobenzene (BFB) <br />51.0 <br />Method Blank: <br />Results <br />Internal Standards <br />Results <br />Benzene, fluoro <br />50.0 <br />Benzene-d5,chloro- <br />50.0 <br />1,4 -Dichlorobenzene -d4 <br />50.0 <br />Surrogate Standards <br />Methane, dibromofluoro- <br />47.7 <br />1,2-Dichloroethane-d4 <br />49.5 <br />Toluene -d8 <br />51.0 <br />p-Bromofluorobenzene (BFB) <br />48.9 <br />Laboratroy Control Sample: Results <br />Benzene <br />25.8 <br />Trichloroethene <br />17.1 <br />Toluene <br />27.4 <br />Chlorobenzene <br />27.6 <br />p-Bromofluorobenzene (BFB) <br />47.8 <br />LCS Duplicate: Results <br />ELAP Certification # 2606 <br />Manteca Superstop-Soil samples -4-22-2022 <br />4/29/2022, 5/4/2022 <br />SOIL <br />% Recovery <br />100% <br />100% <br />100% <br />121% <br />128% <br />103% <br />102% <br />% Recovery <br />100% <br />100% <br />100% <br />95% <br />99% <br />102% <br />98% <br />% Recovery <br />103% <br />68% <br />110% <br />111% <br />96% <br />% Recovery <br />Benzene <br />25.9 <br />104% <br />Trichloroethene <br />17.4 <br />70% <br />Toluene <br />26.9 <br />108% <br />Chlorobenzene <br />27.2 <br />109% <br />p-Bromofluorobenzene (BFB) <br />48.1 <br />96% <br />8015M-TPHD <br />Laboratory Control Sample: <br />Results <br />Recovery <br />TPH-Diesel 500 ppm <br />512 <br />102% <br />233 Technology Way, Suite 7 <br />Rocklin, CA 95765 <br />Phone: (916) 782-8700 Fax., (916) 782-8750 <br />