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FAX(415) 364-9233 <br /> (415) 364%00 FAX(510)988 9673 <br /> (5t0) 9a8 9644 FAX(916)921 0100 <br /> cake Unvc 1Z,dwood City,_ CA g459g 921 9600 <br /> 680 CltiesaP walnut C-e CA 93834 (916) <br /> Sequoia404 N eget Lane uc s Sacra,nento <br /> 819 Straker Avenue Su <br /> 1111�' ��alytical <br /> Unocal #2859, 1665 Pacific Ave , Stockton <br /> Gllent Project 0 Liquid Reported May 29, J996 <br /> CS ServicesMatrix <br /> 31 Stanwell Dr , Ste 300 le GrouP 6050811-22 ` <br /> incord, CA 94520 QG SamP <br /> tentjon Jarret Grldar DATA REPORT <br /> QUALITY CONTROL <br /> Ethyl xylenes <br /> Toluene <br /> ANALYTE <br /> Benzene Benzene <br /> BPA 8020 EPA saza <br /> ><PA 8020 Chul4akorn <br /> EPA 8020 S Chullakorn <br /> g <br /> Method S Chul4ak°rn <br /> Anatyst 5 Ghul4akofn <br /> 6050787 <br /> MS/MSD 6056787 <br /> 6050787 <br /> Batch# gp5a7B7 8/16196 5/16/95 <br /> 5/16/96 5/16/96 <br /> 5/16/96 5/i6/� 5/i6/96 HP-11 <br /> pate Prepared <br /> 6/1s196 HP-11 60!J9/L <br /> Date Analyzed HP-1 1 HP`i i 20 pg/L- <br /> Instrument I D.# 20 Pg/L- 20>1g/L <br /> Cnnc Spiked 97 <br /> 100 <br /> Matrix Spike 100 90 <br /> Recovery- <br /> Matrix Spike105 ins <br /> Duplicate 0 105 <br /> 105 <br /> Recovery 67 <br /> 49 <br /> Relative% 49 15 <br /> Difference' <br /> 11LCS051696 1iLCS051696 <br /> 11LCS05i696 11LC5051896 <br /> LCS Batch# 5/1�/9s 5/16/96 <br /> 5/16/96 5/1&t96 5/16/96 <br /> prepared 5/16/96 6/16/96 HP-11 <br /> Date Pref 5/i6J96 }iP-1i <br /> Date Analyzed 4iP-11 <br /> HP-i 1 <br /> In$trument l D # 108 <br /> 110 <br /> UCS 0/6 100 <br /> ii5 <br /> Recovery <br /> 6o-14a <br /> 60-140 <br /> p/o ecovery 60'14° <br /> 6Q-`140 reagents, <br /> Control Limits. ed using the Same reag <br /> matrix that tis analyz eke is an aliquot of sampl if <br /> Please Note le of known,,yedfor the <br /> free procedure <br /> tis a control sa+I r to ed for the samples The matrix sp <br /> -f he LC ical methods emp Y ected to the enure analytical <br /> 1271 preparation,and analyt ecif�c compounds and sub/ <br /> uanttt+es of Specific eo teed control limits due to math <br /> SE0001A ANALYTICAL, # fortfied with known q tike does not fall within sp <br /> the recovery of analytes from the matrix sp <br /> S=de interference,the LCS recovery is to be used to validate the batch 11 MPD <7> <br /> �gnature on 60sa8 <br /> Alan 8 Kamp <br /> Project Manager `� <br />