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1 <br /> 1COU. CORE LABORATORIES <br /> 1 <br /> Q U A L I T Y C O N T R O L R E S U L T S <br /> Job Number 991124 Report Date 06/30/1999 <br /> CUSTOMER IT Group PROJECT. Southland - Martinez ATTN, Shelby Lathrop <br /> It—QC Type Description Reag Code Lab ID Dilution Factor Date Time <br /> MSD Matrix spike Duplicate 09051803 990851-3 05/25/1999 1159 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result * Limits F <br /> thyl tert-Butyl Ether (ETRE) 51 04 45 41 50 000000 0 102 1 —T4 138 <br /> 12 29 <br /> fert-Amyl Methyl Ether 51 33 47 71 50 000000 0 102 7 67-154 <br /> 7 27 <br /> Methyl-t-Butyl Ether (MTBE) 110 90 98 48 100 000000 0 110 9 71-142 <br /> 12 31 <br /> ,2-Dichloroethane 10 98 10 43 10 000000 0 109 8 70-130 <br /> 5 30 <br /> 1,2-Dibromoethane (EDB) 10 24 10 18 10 000000 0 102 4 70-130 <br /> 1 30 <br /> MB Method Blank 06/22/1999 1516 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result * Limits F <br /> "Itert-Butyl Alcohol (TBA) 0 <br /> DI-Isopropyl Ether 0 <br /> thyl tert-Butyl Ether (ETBE) 0 <br /> Amyl Methyl Ether 0 <br /> l-t-Butyl Ether (MTBE) 0 <br /> ichloroethane 0 <br /> 1,2-Dibromoethane (EDB) 0 <br /> LCS Laboratory Control Sampte 09060402 06/22/1999 1618 <br /> ■ Parameter/Test Description OC Result QC Result True Value Orig Value Calc Result * Limits F <br /> Wert-Butyl Alcohol (TBA) 908 56 1000 000000 90 9 37-175 <br /> Di-Isopropyl Ether 40 69 50 000000 81 4 60-138 <br /> Ethyl tert-Butyl Ether (ETBE) 40 95 50 000000 81 9 51-143 <br /> 0 ert-Amyl Methyl Ether 42 55 50 000000 85 1 64-137 <br /> ethyl-t-ButyL Ether (MTBE) 81 96 100 000000 82 0 33-169 <br /> ,2-DichLoroethane 9 05 10 000000 90 5 70-130 <br /> 1,2-Dibromoethane (EDB) 8 37 10 000000 83 7 70-130 <br /> 1 <br /> III1 <br /> .I <br /> i Il IiI Page 17 <br />' * %=% REC, R=RPD, A=ABS Diff' D=% Diff d` <br /> I I I E I The Erwyl¢al sculls p...n.Or ell.v stat pn3—1—d n thl,nrpdrt ere bn.0 nd by tM1e Gem Iq whpe0 QaGUEIee anp pgnllppnllal u3e Ihn:repel 1 rag bo.,1".Tne.Mlyl GI.sults op,.I—O Inlarpreld 10ns I <br /> 1 <br /> i� Bapr063ad represent the OBSI IWgment of['A(a Laporelw 03 Core lwUpralprles howwer ml.ke3 no warranty pr repeuntnaan.specs d Imdl.d N anY lApe entl a prsE#Y tllAcy ms Acme ds to the protlu[tnllY PIpPOr BperatpneW pGMaGlAnesa 01 ll <br /> ' .ny of rda3..I b,Ober mnerdl p ppetlY well d sBr,6 n G--I on w th which SVCM1 sport a used b,Ked upon 1.adY r¢H¢pn wlai3n.ver Th s i."1 l:haA not be r.Mptleoetl n shote M n Pa I w Ueut IM wr Ilan app o al of Gore CBOdr.te es I I <br /> ,I II I I� II <br /> I I f II I I I II it I�I i II I ti �� f` rI II I I I Il i` I[I i I til II hl ' , ISI I II II I I � II I ' I I I i I I ` nil, <br />