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110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> hyp Rwww mccampbell corn E-mail main@mccampbell eom <br /> • QC REPORT <br /> VOCs (EPA 824018260) <br /> Date 10/30/00-10/31/00 Matrix Water <br /> Extraction N/A <br /> IConcentration ug/L %Recovery <br /> Compound — � Amount � RPD <br /> Sample M5 MSD Spiked MS MSD <br /> SamplelD 111000 Instrument GC-10 <br /> Surrogate 1 0 000 1020 1010 10000 102 v 101 1 10 <br /> I tert-Amyl Methyl Ether I 0 000 900 1060 10000 90 106 163 <br /> Methyl tart-Butyl Ether 0 000 95 0 112 0 11 100 00 'i 95 112 16 4 �3 <br /> i Ethyl tert-Butyl Ether 0 000 900 1150 100 00 90 115 II 244 <br /> Di-isopropyl Ether 0 000 101 0 1180 10000 1 101 118 155 <br /> 1 <br /> 1 <br /> t (MS—Sample) <br /> Recovery= Amoundpiked '00 <br /> (MS—MSD) <br /> RPD= 2100 <br />' (MS+MSD) <br /> RPD means Relative Percent Deviation <br />