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\J <br /> on <br /> LABORATORIES INC <br /> QC Summary <br /> Client Hydro Environmental Technologies <br />' Project Central California Traction Co Matrix soil <br /> Method 8260 1,9-DCE Benzene TCE Toluene CI-Benz <br />' Recovery % QC Limits (60-120) (60-120) (60-120) (60-120) (60-120) <br /> RPD- % QC Limits <30 <30 <30 <30 <30 <br />' Date Analyzed 7121100 <br /> Spike Level (ug/kg) 500 500 500 50 0 500 <br /> Sample Amount 00 00 00 00 00 <br />' MS Amount Found 460 515 510 512 539 <br /> MSD Amount Found 456 521 480 51 4 537 <br />' MS Recovery 920 1030 1020 1023 1079 <br /> MSD Recovery 913 1042 959 1028 1074 <br /> RPD- % 08 12 61 05 04 <br />' Date Analyzed7125100 <br /> Spike Level (ug/kg) 500 500 500 50 0 50 0 <br /> Sample Amount 00 00 00 0 0 00 <br /> AAS Amount Found 424 495 463 495 54 0 <br /> MSD Amount Found 403 493 460 477 51 0 <br />' MS Recovery 848 990 926 989 1079 <br /> MSD Recovery 806 986 920 954 101 9 <br />' RPD- % 50 04 06 36 57 <br /> Calibration verification was within acceptable limits <br /> 1 <br /> TEG0711800 <br /> Page 7 of 8 <br /> 148 SO VINEWOOD STREET a ESCONDtOD CA 92029 o PHONE (760) 735 3208 FAX (760) 735-2469 <br />