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M(DBItf <br /> •ns <br /> LABE7RA1"DRi25 INC QC Summary <br /> Client Hydro Environmental Technologies <br /> Project Central California Traction Co Matnx water <br /> Method 8260 9,1-DCE Benzene TCE Toluene Cl-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 7118100 <br /> Spike Level (ug/L) 100 100 100 100 100 <br /> Sample Amount 00 00 00 00 00 <br /> LCS Amount Found 11 1 98 96 95 102 <br /> LCSD Amount Found 108 104 97 99 101 <br /> LCS Recovery 1112 975 959 954 101 7 <br /> LCSD Recovery 1081 1036 973 987 101 1 <br /> RPD-% 28 61 14 34 06 <br /> Date Analyzed 7/19100 <br /> Spike Level (ug/L) <br /> 100 100 100 100 100 � <br /> Sample Amount 592 00 00 00 00 <br /> AAS Amount Found 684 95 90 93 91 <br /> MSD Amount Found 716 104 95 101 96 <br /> MS Recovery 922 951 897 929 912 <br /> MSD Recovery 124 1" 1039 948 1011 958 <br /> RPD- % 295 88 55 85 49 <br /> MSD recovery outside QC range, no corrective action taken <br /> Calibration venfication was within acceptable limits <br /> TIEG071800 <br /> Page 8 of 8 <br /> 148 SO VINEWOOD STREET e ESCONDIDO CA 92029 o PHONE (750) 735-3208 FAX (760) 735-24B9 <br />